Updated on 2024/04/01

写真a

 
Yamamoto Koichiro
 
Organization
Okayama University Hospital Special-Appointment Assistant Professor
Position
Special-Appointment Assistant Professor
External link

Degree

  • Ph.D. ( 2023.9   Okayama University )

  • M.D. ( 2018.3   Okayama University )

Research Interests

  • Endocrinology

  • General medicine

Research Areas

  • Life Science / Metabolism and endocrinology

  • Life Science / General internal medicine

Education

  • Okayama University   大学院医歯薬学総合研究科   総合内科学

    2020.4 - 2023.9

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    Country: Japan

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  • Okayama University   医学部   医学科

    2012.4 - 2018.3

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    Country: Japan

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Research History

  • Okayama University Hospital   General Medicine   Assistant Professor

    2022.5

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    Country:Japan

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  • Okayama University Hospital   General Medicine   Clinical Fellow

    2020.4 - 2022.4

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    Country:Japan

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  • Okayama University Hospital   Center for Graduate Medical Education   Clinical Resident

    2018.4 - 2020.3

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    Country:Japan

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Professional Memberships

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Papers

  • Idiopathic ventricular tachycardia detected after coronavirus disease 2019 Reviewed

    Koichiro Yamamoto, Koji Nakagawa, Fumio Otsuka

    Journal of General and Family Medicine   2024.3

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/jgf2.687

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  • Penile cavernosal abscess after urethral injury Reviewed

    Koichiro Yamamoto, Hiroyuki Honda, Kou Hasegawa, Hideharu Hagiya, Fumio Otsuka

    Clinical Case Reports   12 ( 2 )   2024.2

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Key Clinical Message

    We present a patient catheterized for prostatic lesions who developed sepsis of urinary origin with a penile cavernosal abscess due to urethral injury caused by catheter ballooning. Urethral injury might lead to a life‐threatening penile abscess.

    DOI: 10.1002/ccr3.8534

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  • A Mediastinum Tumor Presenting With Dysphagia Reviewed

    Koichiro Yamamoto, Fumio Otsuka

    JCEM Case Reports   2024.1

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)  

    DOI: 10.1210/jcemcr/luae011

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  • Hypertension is the only clue for the discovery of adrenal rhabdomyosarcoma Reviewed

    Koichiro Yamamoto, Fumio Otsuka

    Hypertension Research   2023.9

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1038/s41440-023-01426-4

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    Other Link: https://www.nature.com/articles/s41440-023-01426-4

  • Stimulatory effects of vasopressin on progesterone production and BMP signaling by ovarian granulosa cells Reviewed

    Koichiro Yamamoto, Yasuhiro Nakano, Nahoko Iwata, Yoshiaki Soejima, Atsuhito Suyama, Toru Hasegawa, Fumio Otsuka

    Biochemical and Biophysical Research Communications   667   132 - 137   2023.5

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.bbrc.2023.05.058

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  • Oxytocin enhances progesterone production with upregulation of BMP-15 activity by granulosa cells Reviewed

    Koichiro Yamamoto, Yasuhiro Nakano, Nahoko Iwata, Yoshiaki Soejima, Atsuhito Suyama, Toru Hasegawa, Fumio Otsuka

    Biochemical and Biophysical Research Communications   646   103 - 109   2023.2

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.bbrc.2023.01.073

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  • Ossification of the Posterior Longitudinal Ligament Caused by X-linked Hypophosphatemia Reviewed

    JMA Journal   6 ( 3 )   2023

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Japan Medical Association  

    DOI: 10.31662/jmaj.2023-0006

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  • Key signs indicating mesenteric panniculitis Reviewed International journal

    Koichiro Yamamoto, Hiroyuki Honda, Hiroko Ogawa, Fumio Otsuka

    Clinical Case Reports   10 ( 12 )   e6654   2022.12

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Since patients with mesenteric panniculitis (MP) present non-specific symptoms, diagnosing MP is challenging. We describe a 45-year-old man who developed MP with radiologic findings of a "fat ring sign" and a "tumoral pseudocapsule sign." These signs shown in the present case are crucial for a precise diagnosis of MP.

    DOI: 10.1002/ccr3.6654

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    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ccr3.6654

  • Letter to the Editor From Yamamoto et al: “Whole Body, Whole Life, Whole Family: Patients’ Perspectives on X-Linked Hypophosphatemia” Reviewed International journal

    Koichiro Yamamoto, Daisuke Omura, Keiji Soga, Mikako Obika, Fumio Otsuka

    Journal of the Endocrine Society   7 ( 1 )   bvac162   2022.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Endocrine Society  

    DOI: 10.1210/jendso/bvac162

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    Other Link: https://academic.oup.com/jes/article-pdf/7/1/bvac162/47154587/bvac162.pdf

  • Isolated unilateral absence of adult pulmonary artery Reviewed

    Koichiro Yamamoto, Yasuhiro Nakano, Fumio Otsuka

    Clinical Case Reports   10 ( 11 )   2022.11

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    DOI: 10.1002/ccr3.6652

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    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ccr3.6652

  • Eyelid edema due to Cushing's syndrome Reviewed International journal

    Koichiro Yamamoto, Kosuke Oka, Kou Hasegawa, Fumio Otsuka

    Clinical Case Reports   10 ( 6 )   e05940   2022.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Cushing's syndrome (CS) shows diverse signs such as centripetal obesity, moon face, and buffalo hump, which can complicate the diagnosis. Facial features including eyelid edema, as an underrecognized sign, can be diagnostic clues for an excess of corticoids in a CS patient.

    DOI: 10.1002/ccr3.5940

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  • Adrenal and Testicular Tumor Formation Due to 21-Hydroxylase Deficiency Reviewed

    Koichiro Yamamoto, Hiroyuki Honda, Fumio Otsuka

    The American Journal of Medicine   135 ( 5 )   2022.5

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier {BV}  

    DOI: 10.1016/j.amjmed.2022.01.033

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  • Half-and-Half Toenails Reviewed

    Koichiro Yamamoto, Fumio Otsuka

    Mayo Clinic Proceedings   97 ( 4 )   652 - 652   2022.4

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.mayocp.2022.01.010

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  • Triad signs shown by bone scintigraphy in FGF23-related osteomalacia Reviewed

    K Yamamoto, H Honda, I Ota, F Otsuka

    QJM: An International Journal of Medicine   2022.1

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press ({OUP})  

    DOI: 10.1093/qjmed/hcab240

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  • Calcified spleen associated with Pneumocystis jirovecii infection Reviewed

    K Yamamoto, H Honda, H Hagiya, F Otsuka

    QJM: An International Journal of Medicine   114 ( 12 )   895 - 895   2022.1

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    DOI: 10.1093/qjmed/hcab260

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  • Relationship between patients' characteristics and efficacy of calcimimetics for primary hyperparathyroidism in the elderly Reviewed

    Yamamoto, Koichiro, Nakano, Yasuhiro, Tokumasu, Kazuki, Honda, Hiroyuki, Hasegawa, Kou, Sato, Asuka, Ogawa, Hiroko, Obika, Mikako, Hanayama, Yoshihisa, Otsuka, Fumio

    Clinical Case Reports   10 ( 4 )   2022

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY  

    Calcimimetic treatment has been reported to be effective for primary hyperparathyroidism (PHPT). Nine elderly PH PT patients who had been treated with calcimimetics were retrospectively analyzed. It was found that calcimimetics can reduce elevated serum calcium levels in elderly PHPT patients with low femoral DEXA %YAM and low urinary cAMP levels.

    DOI: 10.1002/CCR3.5713

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  • Bull's Head Sign

    Koichiro Yamamoto, Hiroyuki Honda, Hideharu Hagiya, Fumio Otsuka

    JMA Journal   5 ( 1 )   130 - 131   2022

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    Publishing type:Research paper (scientific journal)   Publisher:Japan Medical Association  

    DOI: 10.31662/jmaj.2021-0129

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  • Celiac artery dissection in polycystic kidney disease Reviewed

    Koichiro Yamamoto, Kou Hasegawa, Kosuke Oka, Fumio Otsuka

    Clinical Case Reports   9 ( 10 )   2021.10

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/ccr3.4922

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  • Recurrence of Hypoglycemic Coma in a Patient with Anorexia Nervosa Reviewed

    Koichiro Yamamoto, Daisuke Omura, Mai Yamane, Reina Son, Kou Hasegawa, Hiroyuki Honda, Mikako Obika, Nozomu Minao, Satoru Edahiro, Norihito Yamada, Fumio Otsuka

    Acta Medica Okayama   75 ( 5 )   631 - 636   2021.10

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Okayama University Medical School  

    DOI: 10.18926/AMO/62776

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    Other Link: https://search.jamas.or.jp/link/ui/2022228485

  • Sternoclavicular Joint Hypertrophy Involved in Polymyalgia Rheumatica Reviewed

    Koichiro Yamamoto, Kosuke Oka, Kou Hasegawa, Fumio Otsuka

    Internal Medicine   60 ( 18 )   3057 - 3057   2021.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Internal Medicine  

    DOI: 10.2169/internalmedicine.6860-20

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  • Candidemia in COVID‐19 treated with corticosteroids and tocilizumab Reviewed

    Koichiro Yamamoto, Kaoru Nakamura, Hideharu Hagiya, Fumio Otsuka

    Clinical Case Reports   9 ( 9 )   2021.9

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/ccr3.4858

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  • High-Dose Corticosteroids for a Pregnant Woman Critically Ill With Coronavirus Disease 2019 Reviewed

    Koichiro Yamamoto, Hideharu Hagiya, Jota Maki, Shuji Okahara, Kou Hasegawa, Fumio Otsuka

    Cureus   2021.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Cureus, Inc.  

    DOI: 10.7759/cureus.17398

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  • Pseudoacromegaly with acromegalic features in radiography Reviewed

    Koichiro Yamamoto, Kosuke Oka, Hiroyuki Honda, Kou Hasegawa, Fumio Otsuka

    Clinical Case Reports   9 ( 5 )   2021.5

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    DOI: 10.1002/ccr3.4095

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  • An adrenal incidentaloma caused by synchronous and isolated metastasis Reviewed

    Koichiro Yamamoto, Kosuke Oka, Hiroyuki Honda, Kou Hasegawa, Yoshihisa Hanayama, Tomofumi Watanabe, Yusuke Tominaga, Atsushi Takamoto, Takayuki Hara, Fumio Otsuka

    Clinical Case Reports   9 ( 4 )   2494 - 2495   2021.4

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    Abstract

    We report a patient with adrenal incidentaloma due to synchronous and isolated metastasis from lung cancer, which is a relatively rare condition. Close checkups for incidentaloma in oncologic patients are mandatory, leading to successful operation.

    DOI: 10.1002/ccr3.3996

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  • Large-vessel vasculitis induced by granulocyte colony-stimulating factor administration after chemotherapy Reviewed

    Koichiro Yamamoto, Nayu Tamura, Kosuke Oka, Kou Hasegawa, Hideharu Hagiya, Madoka Hokama, Joji Ishida, Fumio Otsuka

    Modern Rheumatology Case Reports   1 - 5   2021.4

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Informa {UK} Limited  

    DOI: 10.1080/24725625.2020.1857022

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  • Acute pancreatitis without abdominal pain induced by administration of nivolumab and ipilimumab Reviewed

    Koichiro Yamamoto, Kosuke Oka, Reina Son, Hiroyuki Honda, Hiroyuki Sakae, Kou Hasegawa, Shigeru Horiguchi, Hironari Kato, Osamu Yamasaki, Fumio Otsuka

    Modern Rheumatology Case Reports   1 - 6   2021.4

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Informa {UK} Limited  

    DOI: 10.1080/24725625.2021.1899444

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  • Salivary gland enlargement manifested in recurred acromegaly Reviewed

    Koichiro Yamamoto, Kosuke Oka, Kou Hasegawa, Tomoko Miyoshi, Mikako Obika, Hiroko Ogawa, Hitomi Kataoka, Fumio Otsuka

    Journal of Hospital General Medicine   2021.1

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  • Extreme Hyperferritinemia due to Alcoholic Liver Disease: Secondary Hemochromatosis Reviewed

    Koichiro Yamamoto, Yoshito Nishimura, Mai Yamane, Reina Son, Daisuke Omura, Kou Hasegawa, Youhei Marukawa, Fumio Otsuka

    Journal of Hospital General Medicine   2021.1

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  • Acute Pancreatitis Related to COVID-19 Infection Reviewed

    Koichiro Yamamoto, Kosuke Oka, Hiroyuki Sakae, Fumio Otsuka

    Internal Medicine   2021

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Internal Medicine  

    DOI: 10.2169/internalmedicine.7400-21

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  • Pseudo-Cushing's state in a patient with non-functioning pituitary adenoma Reviewed

    Yamamoto, Koichiro, Hanayama, Yoshihisa, Otsuka, Fumio

    BMJ Case Reports   14 ( 7 )   e244438 - e244438   2021

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:BMJ  

    DOI: 10.1136/BCR-2021-244438

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  • Adult Hypogonadism Due to Testicular Adrenal Rest Tumors Reviewed

    Yamamoto, Koichiro, Oka, Kosuke, Hasegawa, Kou, Otsuka, Fumio

    Internal Medicine   60 ( 23 )   3839 - 3840   2021

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japanese Society of Internal Medicine  

    DOI: 10.2169/INTERNALMEDICINE.6501-20

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  • Radiologic features of Erdheim-Chester disease Reviewed International journal

    Yamamoto, Koichiro, Nakano, Yasuhiro, Hasegawa, Kou, Otsuka, Fumio

    Rheumatology   61 ( 7 )   e209   2021

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/RHEUMATOLOGY/KEAB799

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  • Orbital mass and hairy kidney as characteristics of Erdheim-Chester disease Reviewed

    Yamamoto, Koichiro, Oka, Kosuke, Hasegawa, Kou, Otsuka, Fumio

    Clinical Case Reports   9 ( 6 )   2021

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/CCR3.4333

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  • Isolated adrenocorticotropin deficiency induced by pembrolizumab for hypopharyngeal cancer: A case report Reviewed

    Yamamoto, Koichiro, Tokumasu, Kazuki, Oka, Kosuke, Hasegawa, Kou, Otsuka, Fumio

    Clinical Case Reports   9 ( 6 )   2021

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    DOI: 10.1002/CCR3.4305

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  • Clinical Relevance of Serum Prolactin Levels to Inflammatory Reaction in Male Patients Reviewed

    Koichiro Yamamoto, Yoshihisa Hanayama, Kou Hasegawa, Kazuki Tokumasu, Tomoko Miyoshi, Hideharu Hagiya, Hiroko Ogawa, Mikako Obika, Koichi Itoshima, Fumio Otsuka

    Acta Medica Okayama   2020.10

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.18926/AMO/60797

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  • Clinical characteristics of female long COVID patients with menstrual symptoms: a retrospective study from a Japanese outpatient clinic. International journal

    Yasue Sakurada, Yui Matsuda, Kanon Motohashi, Toru Hasegawa, Yuki Otsuka, Yasuhiro Nakano, Kazuki Tokumasu, Koichiro Yamamoto, Naruhiko Sunada, Hiroyuki Honda, Hideharu Hagiya, Keigo Ueda, Fumio Otsuka

    Journal of psychosomatic obstetrics and gynaecology   45 ( 1 )   2305899 - 2305899   2024.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    PURPOSE: To elucidate the impact of long COVID on menstruation and mental health, medical records of patients with long COVID were evaluated. METHODS: Symptoms of long COVID, QOL, mental health, and related endocrine data were compared between two groups with and without menstrual disturbances. RESULTS: Of 349 female patients who visited our clinic between February 2021 and March 2023, 223 patients with long COVID (aged 18-50 years) were included. Forty-four (19.7%) of the patients had menstrual symptoms associated with long COVID. The patients with menstrual symptoms were older than those without menstrual symptoms (42.5 vs. 38 years). The percentage of patients with menstrual symptoms was higher during the Omicron phase (24%) than during the Preceding (13%) and Delta (12%) phases. Cycle irregularity was the most frequent (in 63.6% of the patients), followed by severe pain (25%), heavy bleeding (20.5%), perimenopausal symptoms (18.2%), and premenstrual syndrome (15.9%). Fatigue and depression were the most frequent complications. Scores for fatigue and for QOL were significantly worse in long COVID patients with menstrual symptoms. Results of endocrine examinations showed significantly increased cortisol levels in patients with menstrual complaints. CONCLUSION: Long COVID has an impact on menstrual conditions and on QOL related to menstrual conditions.

    DOI: 10.1080/0167482X.2024.2305899

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  • Mutual Effects of Orexin and Bone Morphogenetic Proteins on Catecholamine Regulation Using Adrenomedullary Cells. International journal

    Yoshiaki Soejima, Nahoko Iwata, Koichiro Yamamoto, Atsuhito Suyama, Yasuhiro Nakano, Fumio Otsuka

    International journal of molecular sciences   25 ( 3 )   2024.1

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    Orexins are neuronal peptides that play a prominent role in sleep behavior and feeding behavior in the central nervous system, though their receptors also exist in peripheral organs, including the adrenal gland. In this study, the effects of orexins on catecholamine synthesis in the rat adrenomedullary cell line PC12 were investigated by focusing on their interaction with the adrenomedullary bone morphogenetic protein (BMP)-4. Orexin A treatment reduced the mRNA levels of key enzymes for catecholamine synthesis, including tyrosine hydroxylase (Th), 3,4-dihydroxyphenylalanie decarboxylase (Ddc) and dopamine β-hydroxylase (Dbh), in a concentration-dependent manner. On the other hand, treatment with BMP-4 suppressed the expression of Th and Ddc but enhanced that of Dbh with or without co-treatment with orexin A. Of note, orexin A augmented BMP-receptor signaling detected by the phosphorylation of Smad1/5/9 through the suppression of inhibitory Smad6/7 and the upregulation of BMP type-II receptor (BMPRII). Furthermore, treatment with BMP-4 upregulated the mRNA levels of OX1R in PC12 cells. Collectively, the results indicate that orexin and BMP-4 suppress adrenomedullary catecholamine synthesis by mutually upregulating the pathway of each other in adrenomedullary cells.

    DOI: 10.3390/ijms25031585

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  • Functional interaction of Clock genes and bone morphogenetic proteins in the adrenal cortex. International journal

    Yoshiaki Soejima, Koichiro Yamamoto, Yasuhiro Nakano, Atsuhito Suyama, Nahoko Iwata, Fumio Otsuka

    Vitamins and hormones   124   429 - 447   2024

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    The bone morphogenetic protein (BMP) system in the adrenal cortex plays modulatory roles in the control of adrenocortical steroidogenesis. BMP-6 enhances aldosterone production by modulating angiotensin (Ang) II-mitogen-activated protein kinase (MAPK) signaling, whereas activin regulates the adrenocorticotropin (ACTH)-cAMP cascade in adrenocortical cells. A peripheral clock system in the adrenal cortex was discovered and it has been shown to have functional roles in the adjustment of adrenocortical steroidogenesis by interacting with the BMP system. It was found that follistatin, a binding protein of activin, increased Clock mRNA levels, indicating an endogenous function of activin in the regulation of Clock mRNA expression. Elucidation of the interrelationships among the circadian clock system, the BMP system and adrenocortical steroidogenesis regulated by the hypothalamic-pituitary-adrenal (HPA) axis would lead to an understanding of the pathophysiology of adrenal disorders and metabolic disorders and the establishment of better medical treatment from the viewpoint of pharmacokinetics.

    DOI: 10.1016/bs.vh.2023.05.002

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  • Characteristics of Persistent Symptoms Manifested after SARS-CoV-2 Vaccination: An Observational Retrospective Study in a Specialized Clinic for Vaccination-Related Adverse Events Reviewed

    Kazuki Tokumasu, Manami Fujita-Yamashita, Naruhiko Sunada, Yasue Sakurada, Koichiro Yamamoto, Yasuhiro Nakano, Yui Matsuda, Yuki Otsuka, Toru Hasegawa, Hideharu Hagiya, Hiroyuki Honda, Fumio Otsuka

    Vaccines   11 ( 11 )   1661 - 1661   2023.10

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    Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    Background: Although many adverse reactions after SARS-CoV-2 vaccination have been reported, there have been few comprehensive studies on persistent symptoms after SARS-CoV-2 vaccination. The aim of this study was to determine the clinical characteristics of patients with various persistent symptoms after SARS-CoV-2 vaccination. Methods: A retrospective descriptive study was performed for patients who visited a specialized clinic established at Okayama University Hospital to evaluate adverse events after SARS-CoV-2 vaccination during the period from April 2021 to March 2023. Results: Descriptive analysis was performed for 121 of 127 patients who visited the clinic during the study period, and separate analysis was performed for the other 6 patients who had serious complications, who required treatment with prednisolone, and who had persistent symptoms. The median [interquartile range] age of the patients was 48 years [31–64 years], and the patients included 44 males (36.4%) and 77 females (63.6%). The most frequent symptoms were sensory impairment (34 patients, 28.1%), general fatigue (30 patients, 24.8%), fever/low-grade fever (21 patients, 17.4%), and headache (21 patients, 17.4%). Serious complications included myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), sarcoidosis, aseptic meningitis, neuromyelitis optica spectrum disorders (NMOSDs), tendon adhesions, and idiopathic thrombocytopenia. Conclusions: Although causal relationships were not determined, 15 persistent symptoms after SARS-CoV-2 vaccination were characterized. All of the symptoms had onset from 12 hours to one week after vaccination, with 10 symptoms persisting for 6 months or longer. The most frequent symptom was sensory impairment.

    DOI: 10.3390/vaccines11111661

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  • Interaction of Orexin and Bone Morphogenetic Proteins in Steroidogenesis by Human Adrenocortical Cells Reviewed

    Yoshiaki Soejima, Nahoko Iwata, Ran Nishioka, Mako Honda, Yasuhiro Nakano, Koichiro Yamamoto, Atsuhito Suyama, Fumio Otsuka

    International Journal of Molecular Sciences   24 ( 16 )   12559 - 12559   2023.8

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    Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    Orexins are neuropeptides that play important roles in sleep-wake regulation and food intake in the central nervous system, but their receptors are also expressed in peripheral tissues, including the endocrine system. In the present study, we investigated the functions of orexin in adrenal steroidogenesis using human adrenocortical H295R cells by focusing on its interaction with adrenocortical bone morphogenetic proteins (BMPs) that induce adrenocortical steroidogenesis. Treatment with orexin A increased the mRNA levels of steroidogenic enzymes including StAR, CYP11B2, CYP17, and HSD3B1, and these effects of orexin A were further enhanced in the presence of forskolin. Interestingly, orexin A treatment suppressed the BMP-receptor signaling detected by Smad1/5/9 phosphorylation and Id-1 expression through upregulation of inhibitory Smad7. Orexin A also suppressed endogenous BMP-6 expression but increased the expression of the type-II receptor of ActRII in H295R cells. Moreover, treatment with BMP-6 downregulated the mRNA level of OX1R, but not that of OX2R, expressed in H295R cells. In conclusion, the results indicate that both orexin and BMP-6 accelerate adrenocortical steroidogenesis in human adrenocortical cells; both pathways mutually inhibit each other, thereby leading to a fine-tuning of adrenocortical steroidogenesis.

    DOI: 10.3390/ijms241612559

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  • Late-Onset Neutropenia With Clozapine Associated With Lithium Carbonate–Related Hyperthyroidism Reviewed

    Yuto Yamada, Masaki Fujiwara, Shuhei Tsujino, Satoru Edahiro, Shinji Sakamoto, Koichiro Yamamoto, Fumio Otsuka, Norihito Yamada, Manabu Takaki

    Journal of Clinical Psychopharmacology   43 ( 1 )   76 - 77   2023.1

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    Publishing type:Research paper (scientific journal)   Publisher:Ovid Technologies (Wolters Kluwer Health)  

    DOI: 10.1097/jcp.0000000000001646

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  • Biofilm-associated candidal thrombophlebitis Reviewed

    Shinnosuke Fukushima, Koichiro Yamamoto, Yasuhiro Nakano, Hideharu Hagiya, Fumio Otsuka

    IDCases   31   e01733 - e01733   2023

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.idcr.2023.e01733

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  • Early-stage antibody kinetics after the third dose of BNT162b2 mRNA COVID-19 vaccination measured by a point-of-care fingertip whole blood testing Reviewed International journal

    Hideharu Hagiya, Yasuhiro Nakano, Masanori Furukawa, Naruhiko Sunada, Toru Hasegawa, Yasue Sakurada, Kou Hasegawa, Koichiro Yamamoto, Hiroko Ogawa, Takafumi Obara, Kouhei Ageta, Naomi Matsumoto, Rumi Matsuo, Tomoka Kadowaki, Akihito Higashikage, Takao Hikita, Takashi Yorifuji, Shinichi Toyooka, Yoshinobu Maeda, Yoshinori Yokokura, Fumio Otsuka, Masanori Nakayama

    Scientific Reports   12 ( 1 )   20628 - 20628   2022.11

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    Abstract

    Amid the Coronavirus Disease 2019 pandemic, we aimed to demonstrate the accuracy of the fingertip whole blood sampling test (FWT) in measuring the antibody titer and uncovering its dynamics shortly after booster vaccination. Mokobio SARS-CoV-2 IgM & IgG Quantum Dot immunoassay (Mokobio Biotechnology R&D Center Inc., MD, USA) was used as a point-of-care FWT in 226 health care workers (HCWs) who had received two doses of the BNT162b2 mRNA vaccine (Pfizer-BioNTech) at least 8 months prior. Each participant tested their antibody titers before and after the third-dose booster up to 14-days. The effect of the booster was observed as early as the fourth day after vaccination, which exceeded the detection limit (> 30,000 U/mL) by 2.3% on the fifth day, 12.2% on the sixth day, and 22.5% after the seventh day. Significant positive correlations were observed between the pre- and post-vaccination (the seventh and eighth days) antibody titers (correlation coefficient, 0.405; p < 0.001). FWT is useful for examining antibody titers as a point-of-care test. Rapid response of antibody titer started as early as the fourth day post-vaccination, while the presence of weak responders to BNT162b2 vaccine was indicated.

    DOI: 10.1038/s41598-022-24464-3

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    Other Link: https://www.nature.com/articles/s41598-022-24464-3

  • Secondary autoimmune hypothalamitis with severe memory impairment 7 years after the onset of diabetes insipidus due to lymphocytic hypophysitis: a case report Reviewed International journal

    Takahiro Asada, Shintaro Takenoshita, Mayuko Senda, Koichiro Yamamoto, Ryo Sasaki, Fumio Otsuka, Seishi Terada, Norihito Yamada

    BMC Neurology   22 ( 1 )   371 - 371   2022.9

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    <jats:title>Abstract</jats:title><jats:sec>
    <jats:title>Background</jats:title>
    <jats:p>Autoimmune hypothalamitis is a very rare neuroendocrine disorder that causes central diabetes insipidus, headache, visual impairment, and sometimes cognitive impairment. Autoimmune hypothalamitis may occur in association with autoimmune hypophysitis, including lymphocytic hypophysitis, or in isolation. It is not known whether autoimmune hypothalamitis and autoimmune hypophysitis are consecutive diseases.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Case presentation</jats:title>
    <jats:p>A 52-year-old woman developed autoimmune hypothalamitis 7 years after developing central diabetes insipidus due to lymphocytic hypophysitis, resulting in severe memory impairment. High-dose intravenous methylprednisolone therapy improved her cognitive function and decreased the size of the lesion.</jats:p>
    </jats:sec><jats:sec>
    <jats:title>Conclusion</jats:title>
    <jats:p>This case presented a unique clinical course, with a long period of time between the onset of autoimmune hypopituitaritis and the development of autoimmune hypothalamitis.</jats:p>
    </jats:sec>

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  • Mutual Effects of Orexin and Bone Morphogenetic Proteins on Gonadotropin Expression by Mouse Gonadotrope Cells Reviewed International journal

    Yoshiaki Soejima, Nahoko Iwata, Nanako Nakayama, Shinichi Hirata, Yasuhiro Nakano, Koichiro Yamamoto, Atsuhito Suyama, Kohei Oguni, Takahiro Nada, Satoshi Fujisawa, Fumio Otsuka

    International Journal of Molecular Sciences   23 ( 17 )   2022.8

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    Orexin plays a key role in the regulation of sleep and wakefulness and in feeding behavior in the central nervous system, but its receptors are expressed in various peripheral tissues including endocrine tissues. In the present study, we elucidated the effects of orexin on pituitary gonadotropin regulation by focusing on the functional involvement of bone morphogenetic proteins (BMPs) and clock genes using mouse gonadotrope LβT2 cells that express orexin type 1 (OX1R) and type 2 (OX2R) receptors. Treatments with orexin A enhanced LHβ and FSHβ mRNA expression in a dose-dependent manner in the absence of GnRH, whereas orexin A in turn suppressed GnRH-induced gonadotropin expression in LβT2 cells. Orexin A downregulated GnRH receptor expression, while GnRH enhanced OX1R and OX2R mRNA expression. Treatments with orexin A as well as GnRH increased the mRNA levels of Bmal1 and Clock, which are oscillational regulators for gonadotropin expression. Of note, treatments with BMP-6 and -15 enhanced OX1R and OX2R mRNA expression with upregulation of clock gene expression. On the other hand, orexin A enhanced BMP receptor signaling of Smad1/5/9 phosphorylation through upregulation of ALK-2/BMPRII among the BMP receptors expressed in LβT2 cells. Collectively, the results indicate that orexin regulates gonadotropin expression via clock gene expression by mutually interacting with GnRH action and the pituitary BMP system in gonadotrope cells.

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  • Persistent methicillin-resistant Staphylococcus aureus bacteremia in an adult patient with Netherton's syndrome: A case report Reviewed

    Misa Takahashi, Hideharu Hagiya, Shuichi Tanaka, Koichiro Yamamoto, Hiroyuki Honda, Kou Hasegawa, Fumio Otsuka

    Journal of Infection and Chemotherapy   28 ( 7 )   978 - 981   2022.7

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    DOI: 10.1016/j.jiac.2022.02.021

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  • Clinical Characteristics of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) Diagnosed in Patients with Long COVID Reviewed

    Kazuki Tokumasu, Hiroyuki Honda, Naruhiko Sunada, Yasue Sakurada, Yui Matsuda, Koichiro Yamamoto, Yasuhiro Nakano, Toru Hasegawa, Yukichika Yamamoto, Yuki Otsuka, Hideharu Hagiya, Hitomi Kataoka, Keigo Ueda, Fumio Otsuka

    Medicina   58 ( 7 )   850 - 850   2022.6

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    Background and Objectives: COVID-19 can be serious not only in the acute phase but also after the acute phase and some patients develop ME/CFS. There have been few studies on patients with long COVID in whom ME/CFS was diagnosed by physicians based on standardized criteria after examinations and exclusion diagnosis and not based on only subjective symptoms. The purpose of this study was to elucidate the detailed characteristics of ME/CFS in patients with long COVID. Materials and Methods: A retrospective descriptive study was performed for patients who visited a COVID-19 aftercare clinic established in Okayama University Hospital during the period was from February 2021 to April 2022. Results: Clinical data were obtained from medical records for 281 patients, and 279 patients who met the definition of long COVID were included. The overall prevalence rate of ME/CFS diagnosed by three sets of ME/CFS criteria (Fukuda, Canadian and IOM criteria) was 16.8% (48.9% in male and 51.1% in females). The most frequent symptoms in ME/CFS patients were general fatigue and post-exertional malaise (89.4% of the patients), headache (34.0%), insomnia (23.4%), dysosmia (21.3%) and dysgeusia (19.1%). Dizziness, chest pain, insomnia and headache were characteristic symptoms related to ME/CFS. The male to female ratio in ME/CFS patients was equal in the present study, although ME/CFS was generally more common in women in previous studies. Given that patients with ME/CFS had more severe conditions in the acute phase of COVID-19, the severity of the acute infectious state might be involved in the pathophysiology of ME/CFS. Conclusions: The prevalence rate of ME/CFS and the characteristic sequelae in the long COVID condition were revealed in this study.

    DOI: 10.3390/medicina58070850

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  • Threat of Staphylococcus aureus Pneumonia in Severe COVID-19 Patients Reviewed

    Tanaka, Shuichi, Yamamoto, Koichiro, Hagiya, Hideharu, Hasegawa, Kou, Otsuka, Fumio

    Cureus   2022

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    DOI: 10.7759/CUREUS.22486

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  • Aging-related Characteristics of Subclinical Hypothyroidism Detected in General Practice Reviewed

    Takami, Masao, Yamamoto, Koichiro, Hanayama, Yoshihisa, Nakano, Yasuhiro, Hasegawa, Kou, Obika, Mikako, Hagiya, Hideharu, Furukawa, Masanori, Otsuka, Fumio

    Acta Medica Okayama   76 ( 1 )   7 - 15   2022

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    Subclinical hypothyroidism (SCH) is diagnosed when serum thyrotropin (TSH) is elevated despite a normal thyroxine level and is known to increase the risk of metabolic disorders. This study was conducted to identify potential laboratory markers suspicious for latent SCH. We retrospectively reviewed 958 outpatients in whom thyroid functions had been examined. Eighty-five (9.1%) of the 939 analyzed subjects had SCH (73% females). In the SCH group, median serum TSH and FT4 levels were 5.04 mu U/ml and 1.19 ng/dl, respectively, and auto-thyroid antibodies were detected in 53.8% of patients. SCH group patients were significantly older than patients in the euthyroid group, while there was no intergroup difference in BMI. However, 56.5% of the SCH patients were asymptomatic. In the SCH group, serum aspartate aminotransferase and low-density lipoprotein cholesterol (LDL-C) levels were significantly higher, and the estimated glomerular filtration rate (eGFR) was significantly lower than in the euthyroid group. Among patients less than 65 years of age, SCH patients tended to have lower eGFR and higher LDL-C than euthyroid patients. Age-dependent reductions of red blood cells and serum albumin were more prominent in the SCH than the euthyroid group. Biochemical changes with aging are useful as potential clues for suspecting latent SCH.

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  • 甲状腺機能低下症によるPsychosis(Myxedema Psychosis)の臨床的特徴―症例報告と文献レビュー― Reviewed

    山田裕士, 藤原雅樹, 宋龍平, 枝廣暁, 深尾貴志, 酒本真次, 高東祥一朗, 川田清宏, 和迩健太, 山本紘一郎, 大塚文男, 山田了士

    精神神経学雑誌   124 ( 5 )   293 - 299   2022

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    精神症状を呈した甲状腺機能低下症の患者の15%が精神病症状を生じると報告されており,「myxedema psychosis」と呼ばれる.しかし,わが国の精神科領域での報告は数例にとどまり,十分に認知されていない可能性がある.そこで,本症例報告では,精神科におけるmyxedema psychosis鑑別の重要性を改めて強調するため,自験例の詳細な臨床像を記述したうえで,系統的レビューで得られた症状,検査所見,治療経過の特徴を整理して呈示する.症例は50歳代の女性.X-2年に橋本病と診断され,レボチロキシンで治療されていた.X年5月にレボチロキシンを自己中断後,徐々に過敏になり,幻聴に左右されて家を飛びだすようになった.同月末に不安と動悸症状でA病院を受診し,著明な甲状腺機能低下が認められたため,内科に入院した.レボチロキシンを再開し,リスペリドンも開始されたが,精神病症状の改善に乏しく,精査を拒否するため,入院第7病日に当院当科へ転院した.転院時,幻聴は改善していたが,思路障害や焦燥は残存し,甲状腺機能低下も持続していた.脳波検査では徐波が混入しており,髄液検査ではタンパクの軽度高値を認めたことから,橋本脳症の可能性も考えたが,症状が改善傾向であったため,ステロイド投与は保留し,レボチロキシンを増量し経過観察した.すると,転院第7病日までに精神病症状は消失し,転院第16病日に退院した.12月にリスペリドンを中止後も精神病症状の再燃はなかった.X+1年8月にTSHの上昇とともに精神病症状が再発したが,レボチロキシンの増量により速やかに症状は改善した.Myxedema psychosisは甲状腺ホルモン補充により抗精神病薬中止が可能と系統的レビューが示すように,本症例もレボチロキシンの補充で症状は速やかに改善した.Myxedema psychosisは抗精神病薬の中止が可能な予後良好な病態であるため,精神病症状を呈した患者の治療においては,甲状腺機能の評価を行うことが望ましい.(著者抄録)

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  • Hormonal trends in patients suffering from long COVID symptoms Reviewed

    Naruhiko Sunada, Hiroyuki Honda, Yasuhiro Nakano, Koichiro Yamamoto, Kazuki Tokumasu, Yasue Sakurada, Yui Matsuda, Toru Hasegawa, Yuki Otsuka, Mikako Obika, Yoshihisa Hanayama, Hideharu Hagiya, Keigo Ueda, Hitomi Kataoka, Fumio Otsuka

    Endocrine Journal   69 ( 10 )   1173 - 1181   2022

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    Symptoms of long COVID are complex and long-lasting, and endocrine dysfunction might be involved in the underlying mechanisms. In this study, to clarify the hormonal characteristics of long COVID patients, laboratory data for patients who visited the outpatient clinic for long COVID were evaluated. A retrospective analysis was performed for patients who visited Okayama University Hospital during the period from Feb 2021 to Dec 2021 with focus on the interrelationships between major symptoms and endocrine data. Information and laboratory data were obtained from medical records for 186 patients. The patients had various symptoms, and the most frequent symptoms were general malaise, dysosmia/dysgeusia, hair loss, headache, dyspnea, and sleeplessness. Patients who were suffering from fatigue and dysosmia/dysgeusia were younger, while hair loss was more frequent in older and female patients. As for the characteristics of patients suffering from general fatigue, the scores of depression and fatigue were positively correlated with serum levels of cortisol and free thyroxin (FT4), respectively. Also, patients suffering from general fatigue had lower levels of serum growth hormone and higher levels of serum FT4, while patients with dysosmia/dysgeusia had a significantly lower level of serum cortisol. Serum thyrotropin (TSH) levels were higher and the ratios of FT4/TSH were lower in the initially severe cases, suggesting occult hypothyroidism. In addition, the ratios of plasma adrenocorticotropin to serum cortisol were decreased in patients with relatively high titers of serum SARS-CoV-2 antibody. Thus, hormonal changes seem to be, at least in part, involved in the persistent symptoms of long COVID.

    DOI: 10.1507/endocrj.ej22-0093

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  • Gender-Dependent Characteristics of Serum 1,25-Dihydroxyvitamin D/25-Hydroxyvitamin D Ratio for the Assessment of Bone Metabolism Reviewed

    Manami Fujita-Yamashita, Koichiro Yamamoto, Hiroyuki Honda, Yoshihisa Hanayama, Kazuki Tokumasu, Yasuhiro Nakano, Kou Hasegawa, Hideharu Hagiya, Mikako Obika, Hiroko Ogawa, Fumio Otsuka

    Cureus   2021.9

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    DOI: 10.7759/cureus.18070

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  • Interrelationships Between Serum Levels of Procalcitonin and Inflammatory Markers in Patients Who Visited a General Medicine Department Reviewed

    Jo Araki, Kosuke Oka, Koichiro Yamamoto, Yoshihisa Hanayama, Kazuki Tokumasu, Hideharu Hagiya, Hiroko Ogawa, Koichi Itoshima, Fumio Otsuka

    Acta Medica Okayama   2021.6

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    DOI: 10.18926/AMO/62221

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  • Clinical Characteristics of Low Androgen Status in Males with Type 2 Diabetes Mellitus Reviewed

    Jun Hamahara, Hiroyuki Honda, Koichiro Yamamoto, Kazuki Tokumasu, Yoshihisa Hanayama, Hideharu Hagiya, Mikako Obika, Keigo Ueda, Masayuki Kishida, Fumio Otsuka

    Acta Medica Okayama   75 ( 1 )   1 - 8   2021.2

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    To determine the clinical characteristics of low androgen status in adult males with diabetes, we retrospectively analyzed the medical records of patients with type 2 diabetes mellitus in whom serum free testosterone (FT) levels were examined for 1 year. Among the 46 patients (56 ± 1.5 years old), decreases in serum FT levels to <8.5 pg/ml (indicating the occurrence of late-onset hypogonadism [LOH]) were detected in 18 (39%). The percentages of patients with low FT levels were high in the >50 years age group (83%), the HbA1c <7% group (67%), and the 25 < BMI <30 kg/m2 group (56%). The serum FT levels tended to decrease age-dependently. The level of HbA1c was significantly correlated with the Heinemann Aging Male Symptoms (AMS) score (R=0.47). The low-FT group had decreased levels of hemoglobin. Of note, the serum FSH level (R=-0.32) was negatively correlated with the serum FT level, whereas the serum TSH level (R=0.36) was positively correlated with the serum FT level. Collectively, these results revealed that many diabetic males may have low FT levels and that the AMS score is related to the HbA1c level. A slightly anemic condition, thyroid dysfunction, and obesity (class 1) might be involved in LOH in middle-aged diabetic males.

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  • Involvement of clock gene expression, bone morphogenetic protein and activin in adrenocortical steroidogenesis by human H295R cells Reviewed

    Yoshiaki Soejima, Nahoko Iwata, Yasuhiro Nakano, Koichiro Yamamoto, Atsuhito Suyama, Takahiro Nada, Hiroko Ogawa, Fumio Otsuka

    Endocrine Journal   68 ( 2 )   243 - 250   2021

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    DOI: 10.1507/endocrj.ej20-0359

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  • Roles of NR5A1 and NR5A2 in the regulation of steroidogenesis by Clock gene and bone morphogenetic proteins by human granulosa cells Reviewed

    Suyama, Atsuhito, Iwata, Nahoko, Soejima, Yoshiaki, Nakano, Yasuhiro, Yamamoto, Koichiro, Nada, Takahiro, Otsuka, Fumio

    Endocrine Journal   2021

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  • Clinical utility of urinary levels of catecholamines and their fraction ratios related to heart rate and thyroid function Reviewed

    Naruhiko Sunada, Yoshihisa Hanayama, Koichiro Yamamoto, Yasuhiro Nakano, Takahiro Nada, Hiroyuki Honda, Kou Hasegawa, Hideharu Hagiya, Fumio Otsuka

    Endocrine Journal   69 ( 4 )   417 - 425   2021

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    DOI: 10.1507/endocrj.ej21-0488

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  • High-dose steroids for the treatment of severe COVID-19: comment Reviewed

    Tanaka, Shuichi, Yamamoto, Koichiro, Hagiya, Hideharu, Hasegawa, Kou, Otsuka, Fumio

    Internal and Emergency Medicine   16 ( 5 )   1415 - 1416   2021

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    DOI: 10.1007/S11739-021-02766-0

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  • Biphasic Roles of Clock Genes and Bone Morphogenetic Proteins in Gonadotropin Expression by Mouse Gonadotrope Cells Reviewed

    Soejima, Yoshiaki, Iwata, Nahoko, Nakano, Yasuhiro, Yamamoto, Koichiro, Suyama, Atsuhito, Nada, Takahiro, Otsuka, Fumio

    International Journal of Molecular Sciences   22 ( 20 )   11186 - 11186   2021

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    <jats:p>Roles of Clock genes and the bone morphogenetic protein (BMP) system in the regulation of gonadotropin secretion by gonadotropin-releasing hormone (GnRH) were investigated using mouse gonadotropin LβT2 cells. It was found that luteinizing hormone (LH)β mRNA expression level in LβT2 cells changed gradually over time, with LHβ expression being suppressed in the early phase up to 12 h and then elevated in the late phase 24 h after GnRH stimulation. In addition, the mRNA expression levels of Clock genes, including Bmal1, Clock, Per2, and Cry1, also showed temporal changes mimicking the pattern of LHβ expression in the presence and absence of GnRH. Notably, the expression levels of Bmal1 and Clock showed strong positive correlations with LHβ mRNA expression levels. Moreover, a functional link of the ERK signaling of mitogen-activated protein kinases (MAPKs) in the suppression of LHβ mRNA expression, as well as Bmal1 and Clock mRNA expression by GnRH at the early phase, was revealed. Inhibition of Bmal1 and Clock expression using siRNA was involved in the reduction in LHβ mRNA levels in the late phase 24 h after GnRH stimulation. Furthermore, in the presence of BMP-6 and -7, late-phase Bmal1 and LHβ mRNA expression after GnRH stimulation was significantly attenuated. Collectively, the results indicated that LH expression in gonadotrope cells exhibits Bmal1/Clock-dependent fluctuations under the influence of GnRH and that the fluctuations are regulated by ERK and BMPs in the early and late stages, respectively, in a phase-dependent manner after GnRH stimulation.</jats:p>

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  • Involvement of BMP-15 in glucocorticoid actions on ovarian steroidogenesis by rat granulosa cells Reviewed

    Kashino, Chiaki, Hasegawa, Toru, Nakano, Yasuhiro, Iwata, Nahoko, Yamamoto, Koichiro, Kamada, Yasuhiko, Masuyama, Hisashi, Otsuka, Fumio

    Biochemical and Biophysical Research Communications   559   56 - 61   2021

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    DOI: 10.1016/J.BBRC.2021.04.085

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  • Aldosterone enhances progesterone biosynthesis regulated by bone morphogenetic protein in rat granulosa cells Reviewed

    Yasuhiro Nakano, Toru Hasegawa, Chiaki Kashino, Nahoko Iwata, Koichiro Yamamoto, Atsuhito Suyama, Yoshiaki Soejima, Takahiro Nada, Fumio Otsuka

    The Journal of Steroid Biochemistry and Molecular Biology   203   105738 - 105738   2020.10

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    DOI: 10.1016/j.jsbmb.2020.105738

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Books

  • 総合診療グリーンノート

    大塚, 文男, 徳増, 一樹(106, 122-125, 158-161)

    中外医学社  2022.12  ( ISBN:9784498120020

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    Total pages:iii, 343p   Language:Japanese

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  • Hospitalist 内分泌疾患2 : 特集

    栗原, 勲, 大塚, 文男, 小比賀, 美香子, 鈴木, 利彦(医師), 藤谷, 茂樹(副甲状腺:①副甲状腺機能亢進症(PP. 403-407))

    メディカル・サイエンス・インターナショナル  2021.12  ( ISBN:9784815720025

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    Total pages:p265-499   Language:Japanese

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  • General Mindで攻める総合内科で診る内分泌疾患

    大塚, 文男( Role: Contributor ,  180-182, 270-272)

    中外医学社  2020.4  ( ISBN:9784498020849

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    Total pages:iv,369p   Language:Japanese

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MISC

  • The 49th Annual Meeting of the Japan Neuroendocrine Society

    Koichiro Yamamoto, Fumio Otsuka

    136   41 - 42   2024.4

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  • プロラクチンの作用とその関連薬

    山本紘一郎, 大塚文男

    産科と婦人科   91 ( 増刊号 )   24 - 29   2024.3

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  • How shame highlighted the importance of deconstructing biomedical science and building patient-centred care

    Koichiro Yamamoto

    Shame and medicine   2024.3

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  • Crosspoint between endocrine diseases and mental disorders.

    Koichiro Yamamoto, Fumio Otsuka

    Diabetology, Endocrinology & Metabology   57 ( 3 )   360 - 366   2023.9

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  • 偽性の病態

    山本紘一郎

    臨床雑誌内科   132 ( 2 )   258 - 260   2023.8

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  • GH/IGF-I正常の先端巨大症様顔貌[もう騙されない!外来に現れるミミック疾患(17)]

    山本紘一郎, 片岡仁美, 大塚文男

    週刊日本医事新報   ( 5178 )   10 - 11   2023.7

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  • 特発性後腹膜線維症[もう騙されない!外来に現れるミミック疾患(14)]

    山本紘一郎, 片岡仁美, 大塚文男

    週刊日本医事新報   ( 5164 )   14 - 15   2023.4

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  • 中心性肥満[もう騙されない!外来に現れるミミック疾患(10)]

    山本紘一郎, 片岡仁美, 大塚文男

    週刊日本医事新報   ( 5150 )   8 - 9   2023.1

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  • 21-水酸化酵素欠損症(21-OHD)の経過中に性腺機能低下を生じた2例から

    山本 紘一郎, 本多 寛之, 中野 靖浩, 徳増 一樹, 長谷川 功, 小比賀 美香子, 花山 宜久, 大塚 文男

    ACTH RELATED PEPTIDES   33   17 - 18   2022.10

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    J-GLOBAL

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  • 全身倦怠感の精査から診断に至った高齢ACTH単独欠損症の1例

    山本紘一郎, 本多寛之, 田中秀一, 孫 麗那, 長谷川 功, 大塚文男

    日本下垂体研究会誌   9   10 - 12   2022.3

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  • 下咽頭癌肺転移に対するペンブロリズマブ投与中に発症したACTH単独欠損症の1例

    山本 紘一郎, 徳増 一樹, 孫 麗那, 岡 浩介, 長谷川 功, 大塚 文男

    ACTH RELATED PEPTIDES   32   18 - 20   2021.9

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    70歳代、男性。下咽頭癌肺転移に対するペンブロリズマブの投与中に発熱や食思不振、嘔吐が持続し、精査目的で当科へ紹介となった。不明熱に対しての内分泌学的精査を施行し、ACTH単独欠損症(IAD)と診断され、ヒドロコルチゾン10mg/日の補充を開始したところ、症状・炎症反応の速やかな改善が得られた。病歴から本症例におけるIADの原因はペンブロリズマブによる免疫関連有害事象と考えられ、同薬剤の投与を中止することで、中止後も転移病変は縮小を維持している。

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  • 大腿骨頸部骨折を契機に発見されたビタミンD欠乏の1例

    高瀬了輔, 高瀬了輔, 本多寛之, 中野靖浩, 山本紘一郎, 大國皓平, 越智可奈子, 長谷川功, 三好智子, 花山宜久, 小川弘子, 森泰宏, 大塚文男

    日本病院総合診療医学会雑誌(Web)   19   2023

  • 後縦靱帯骨化症を合併し椎弓切除術を要した成人XLHの1例

    山本紘一郎, 本多寛之, 大國皓平, 中野靖浩, 徳増一樹, 長谷川功, 長谷川高誠, 安原隆雄, 大塚文男

    日本内分泌学会雑誌   99 ( 1 )   2023

  • 下垂体の器質的変化を伴う中枢性尿崩症:Erdheim-Chester病の3例の特徴から

    山本紘一郎, 高瀬了輔, 大國皓平, 中野靖浩, 長谷川功, 大塚文男

    日本間脳下垂体腫瘍学会プログラム・抄録集   33rd   2023

  • オレキシンによる副腎皮質ステロイド合成系への影響とBMPの関与

    副島佳晃, 岩田菜穂子, 西岡らん, 本多真子, 中野靖浩, 山本紘一郎, 須山敦仁, 大塚文男

    日本ステロイドホルモン学会学術集会プログラム・抄録集(Web)   30th   2023

  • オレキシンおよびBMPシグナルが下垂体ゴナドトロピン分泌に与える影響

    副島佳晃, 岩田菜穂子, 中山菜々子, 平田真一, 中野靖浩, 山本紘一郎, 須山敦仁, 大國皓平, 灘隆宏, 藤澤諭, 大塚文男

    日本下垂体研究会誌(Web)   ( 10 )   2023

  • 卵巣ステロイド合成系におけるオキシトシンとBMPの機能連関

    山本紘一郎, 中野靖浩, 岩田菜穂子, 副島佳晃, 須山敦仁, 大塚文男

    日本内分泌学会雑誌   99 ( 1 )   2023

  • 副腎皮質ステロイド合成におけるオレキシンとBMPの相互調節

    副島佳晃, 岩田菜穂子, 西岡らん, 本多真子, 中野靖浩, 山本紘一郎, 須山敦仁, 大塚文男

    日本内分泌学会雑誌   99 ( 1 )   2023

  • 副腎髄質カテコラミン分泌調節におけるオレキシンとBMPの相互作用

    副島佳晃, 岩田菜穂子, 山本紘一郎, 須山敦仁, 中野靖浩, 大塚文男

    日本神経内分泌学会学術集会プログラム・抄録集   49th   2023

  • 中枢性尿崩症と眼瞼黄色腫から診断したErdheim-Chester病の3例

    山本 紘一郎, 高瀬 了輔, 大國 皓平, 中野 靖浩, 岡 浩介, 本多 寛之, 長谷川 功, 花山 宜久, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   98 ( 2 )   569 - 569   2022.10

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  • 骨粗鬆症精査を契機に診断されたTurner症候群の1成人例

    長谷川 徹, 越智 可奈子, 中野 靖浩, 山本 紘一郎, 小比賀 美香子, 植田 圭吾, 長谷川 高誠, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   402 - 402   2022.4

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  • 精巣副腎遺残腫瘍に関連し性腺機能低下を来した21-水酸化酵素欠損症の2例

    山本 紘一郎, 本多 寛之, 中野 靖浩, 徳増 一樹, 長谷川 功, 小比賀 美香子, 花山 宜久, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   401 - 401   2022.4

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  • 経過中に難治性高血圧症を合併した血管型Ehlers-Danlos症候群の1例

    長谷川 功, 田中 秀一, 山本 紘一郎, 中野 靖浩, 本多 寛之, 萩谷 英大, 冨田 晃司, 戸田 洋伸, 内田 治仁, 平沢 晃, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   322 - 322   2022.4

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  • IFN-α投与が奏効したステロイド抵抗性Erdheim-Chester病の1例

    庵谷 紘美, 中野 靖浩, 中本 健太, 平 佑貴, 山本 紘一郎, 長谷川 功, 三好 智子, 小川 弘子, 白羽 英則, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   279 - 279   2022.4

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  • 原発性副甲状腺機能亢進症に対するカルシウム受容体作動薬の効果と関連因子

    山本 紘一郎, 中野 靖浩, 徳増 一樹, 本多 寛之, 長谷川 功, 小比賀 美香子, 三好 智子, 小川 弘子, 花山 宜久, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   374 - 374   2022.4

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  • 頭部外傷が契機と考えられる中枢性尿崩症の1例

    山本 紘一郎, 本多 寛之, 田中 秀一, 高橋 美砂, 長谷川 功, 中野 靖浩, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   335 - 335   2022.4

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  • LβT2細胞におけるオレキシンとBMPによるゴナドトロピン分泌調節の検討

    副島 佳晃, 岩田 菜穂子, 中山 菜々子, 平田 真一, 中野 靖浩, 山本 紘一郎, 須山 敦仁, 灘 隆宏, 藤澤 諭, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   329 - 329   2022.4

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  • 肝硬変と多発骨折を契機に診断されたFGF23関連低リン血症性骨軟化症の1例

    須山 敦仁, 山本 紘一郎, 田中 秀一, 孫 麗那, 高橋 美砂, 中野 靖浩, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   98 ( 1 )   325 - 325   2022.4

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  • 潜在性甲状腺機能低下症の総合診療外来における検出とその特徴

    高見 優男, 山本 紘一郎, 中野 靖浩, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1143 - 1143   2022.3

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  • 時計遺伝子およびBMP分子が下垂体ゴナドトロープ細胞に与える影響

    副島佳晃, 岩田菜穂子, 須山敦仁, 中野靖浩, 山本紘一郎, 大塚文男

    日本下垂体研究会誌   9 ( 9 )   7 - 8   2022.3

  • 摂食調節ホルモンによる卵胞ステロイド合成への影響とその機序の検討

    中野 靖浩, 樫野 千明, 長谷川 徹, 岩田 菜穂子, 副島 佳晃, 須山 敦仁, 山本 紘一郎, 増山 寿, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1363 - 1363   2022.3

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  • ゴナドトロープ細胞における時計遺伝子およびBMP分子の機能的役割

    副島 佳晃, 岩田 菜穂子, 須山 敦仁, 中野 靖浩, 山本 紘一郎, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1247 - 1247   2022.3

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  • 不明熱の精査より診断した高齢特発性ACTH単独欠損症の1例

    上枝 礼佳, 山本 紘一郎, 田中 秀一, 孫 麗那, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1261 - 1261   2022.3

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  • 卵胞ステロイド合成におけるNR5Aの役割とClock・BMPによる調節機序

    須山 敦仁, 岩田 菜穂子, 副島 佳晃, 中野 靖浩, 山本 紘一郎, 灘 隆宏, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1303 - 1303   2022.3

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  • 非機能性下垂体腺腫を伴った偽性クッシング症候群の1例

    山本 紘一郎, 花山 宜久, 中野 靖浩, 大村 大輔, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 5 )   1262 - 1262   2022.3

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  • カルシウム受容体作動薬で治療した原発性副甲状腺機能亢進症患者の臨床的特徴

    山本 紘一郎, 中野 靖浩, 徳増 一樹, 本多 寛之, 長谷川 功, 小比賀 美香子, 三好 智子, 小川 弘子, 花山 宜久, 大塚 文男

    日本内科学会雑誌   111 ( Suppl. )   173 - 173   2022.2

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  • 蓄尿中カテコールアミン比測定の有用性と臨床的意義の検討

    砂田匠彦, 花山宜久, 灘隆宏, 徳増一樹, 山本紘一郎, 中野靖浩, 長谷川功, 萩谷英大, 小比賀美香子, 大塚文男

    日本病院総合診療医学会雑誌(Web)   18   2022

  • 新規PHEXバリアントを伴うXLHにブロスマブが奏効した1例

    山本紘一郎, 本多寛之, 中野靖浩, 徳増一樹, 長谷川功, 長谷川高誠, 大塚文男

    臨床内分泌代謝Update抄録集(Web)   32nd   2022

  • 21-水酸化酵素欠損症(21-OHD)の経過中に性腺機能低下を生じた2例から

    山本紘一郎, 本多寛之, 中野靖浩, 徳増一樹, 長谷川功, 小比賀美香子, 花山宜久, 大塚文男

    ACTH Related Peptides (CD-ROM)   33   2022

  • 成人期にPHEX新規変異によるX染色体連鎖性低リン血症性骨軟化症と診断した1例

    山本紘一郎, 本多寛之, 高瀬了輔, 中野靖浩, 徳増一樹, 長谷川功, 長谷川高誠, 大塚文男

    日本内分泌学会中国支部学術集会プログラム・抄録集(Web)   23rd   2022

  • 右肩・上腕痛及び右手先の痺れから見つかった食道癌の一例

    吉田純, 田中秀一, 山本紘一郎, 高橋美砂, 本多寛之, 長谷川功, 大塚文男

    日本病院総合診療医学会雑誌(Web)   18   2022

  • オキシトシンが卵巣顆粒膜細胞のステロイド合成に与える影響

    山本紘一郎, 中野靖浩, 岩田菜穂子, 副島佳晃, 須山敦仁, 大塚文男

    日本生殖内分泌学会学術集会プログラム・抄録集(Web)   27th   2022

  • GH補充療法により脂肪肝の著明な改善を認めたAGHDの1例

    高瀬 了輔, 中野 靖浩, 山本 紘一郎, 越智 可奈子, 本多 寛之, 長谷川 功, 三好 智子, 小川 弘子, 大塚 文男

    日本内分泌学会雑誌   97 ( 4 )   951 - 951   2021.12

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  • 肺癌治療中の発熱を契機に発見されたペムブロリズマブによるirAEの1例

    平仲 凪, 山本 紘一郎, 田中 秀一, 孫 麗那, 高橋 美砂, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 4 )   951 - 951   2021.12

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  • 乳汁漏出の精査より判明したBigプロラクチンと性同一性障害の合併例

    桜田 泰江, 越智 可奈子, 山本 紘一郎, 古川 雅規, 大塚 文男

    日本内分泌学会雑誌   97 ( 4 )   953 - 953   2021.12

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  • 総合診療における甲状腺機能低下状態の潜在とその特徴

    高見 優男, 山本 紘一郎, 花山 宜久, 中野 靖浩, 長谷川 功, 小比賀 美香子, 萩谷 英大, 大塚 文男

    日本内分泌学会雑誌   97 ( 4 )   961 - 961   2021.12

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  • 不明熱精査からirAEによるACTH単独欠損症と診断した2例

    平仲 凪, 山本 紘一郎, 田中 秀一, 孫 麗那, 高橋 美砂, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   488 - 488   2021.10

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  • 心不全・肝不全から発見された高齢橋本病の1例

    上枝 礼佳, 山本 紘一郎, 田中 秀一, 孫 麗那, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   516 - 516   2021.10

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  • 心不全・肝不全から発見された高齢橋本病の1例

    上枝 礼佳, 山本 紘一郎, 田中 秀一, 孫 麗那, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   516 - 516   2021.10

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  • 抗PD-1抗体による早期の甲状腺障害後にACTH分泌不全を呈した1例

    安田 美帆, 山本 紘一郎, 中野 靖浩, 長谷川 功, 越智 可奈子, 三好 智子, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   503 - 503   2021.10

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  • 肺非結核性抗酸菌症を合併したACTH分泌不全症の1例

    高瀬 了輔, 中野 靖浩, 山本 紘一郎, 越智 可奈子, 長谷川 功, 三好 智子, 小川 弘子, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   499 - 499   2021.10

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  • 不明熱精査からirAEによるACTH単独欠損症と診断した2例

    平仲 凪, 山本 紘一郎, 田中 秀一, 孫 麗那, 高橋 美砂, 本多 寛之, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   488 - 488   2021.10

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  • 高用量ステロイド治療が奏功した重症COVID-19妊婦の1例

    山本 紘一郎, 萩谷 英大, 牧 尉太, 岡原 修司, 長谷川 功, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   568 - 568   2021.10

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  • 総合診療におけるカテコールアミン測定の有用性とその解釈

    砂田 匠彦, 花山 宜久, 灘 隆宏, 徳増 一樹, 山本 紘一郎, 中野 靖浩, 長谷川 功, 萩谷 英大, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   97 ( 2 )   560 - 560   2021.10

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  • 下垂体卒中による意識障害を契機に浸透圧性脱髄症候群を来した1例

    横田 雄也, 岡 浩介, 安田 美帆, 長谷川 功, 山本 紘一郎, 萩谷 英大, 小比賀 美香子, 大塚 文男

    ACTH RELATED PEPTIDES   31   26 - 28   2021.9

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    60代女性。下垂体卒中による意識障害を契機に中枢性尿崩症が増悪し、多尿による高張性脱水と急激な血清Na上昇を生じた。ヒドロコルチゾン及びデスモプレシン投与を行ったが意識障害が遷延したため、下垂体卒中発症の14日後に頭部MRIを行ったところ、FLAIR画像および拡散強調画像で、橋中央に楕円形ないし三角形の高信号病変がみられ、浸透圧性脱髄症候群と診断した。脳神経外科に転科し、経蝶形骨洞手術を行い、腺腫・腫瘍を摘出した。術後10日目に頭部MRI検査を実施したところ、橋の高信号病変は残像していた。

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  • CYP11B1/B2キメラ遺伝子を確認した家族性アルドステロン症小児例

    中野 靖浩, 岩田 菜穂子, 長谷川 高誠, 越智 可奈子, 山本 紘一郎, 高瀬 了輔, 長谷川 功, 堀口 繁, 山本 英喜, 平沢 晃, 大塚 文男

    日本内分泌学会雑誌   97 ( Suppl.Update )   71 - 73   2021.7

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    約20年前にCYP11B1/B2キメラ遺伝子を確認しグルココルチコイド反応性アルドステロン症(GRA)と診断された日本人1家系3例(発端者、母、妹)のうち、発端者が出産した5歳と3歳の男児に対し遺伝子検査を行った。その結果、男児2人ともキメラ遺伝子を検出しGRA保因者であることが明らかとなった。また、キメラ遺伝子の交叉部位について検討した結果、2児と発端者は同一のシークエンスで、交叉部位はエクソン3とイントロン5間であった。2児とも高血圧を認めないが低レニン・高アルドステロン症を伴っており、今後、成人期までの慎重な経過観察が必要である。

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    Other Link: https://search-tp.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2021&ichushi_jid=J01160&link_issn=&doc_id=20210811280023&doc_link_id=%2Fcq6naibu%2F2021%2F0097s1%2F024%2F0071-0073%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcq6naibu%2F2021%2F0097s1%2F024%2F0071-0073%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

  • NR5A1/NR5A2・ClockおよびBMPによる卵胞ステロイド合成調節メカニズムの検討

    須山 敦仁, 岩田 菜穂子, 副島 佳晃, 中野 靖浩, 山本 紘一郎, 大塚 文男

    日本内分泌学会雑誌   97 ( 3 )   644 - 644   2021.7

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  • ゴナドトロピン分泌調節における時計遺伝子およびBMPの関与

    副島 佳晃, 岩田 菜穂子, 須山 敦仁, 中野 靖浩, 山本 紘一郎, 大塚 文男

    日本内分泌学会雑誌   97 ( 3 )   640 - 640   2021.7

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  • ビタミンD活性化指標(1,25D/25D比)の臨床的有用性の検討

    藤田 茉奈美, 山本 紘一郎, 本多 寛之, 花山 宜久, 徳増 一樹, 中野 靖浩, 長谷川 功, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   337 - 337   2021.4

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  • 性腺機能低下を伴いコロナ禍で高度肥満を呈した成人21-水酸化酵素欠損症の1例

    山本 紘一郎, 岡 浩介, 長谷川 功, 越智 可奈子, 中野 靖浩, 徳増 一樹, 本多 寛之, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   96 ( 4 )   1041 - 1041   2021.4

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  • 時計遺伝子とBMP/activinによる副腎皮質ステロイド合成への影響

    副島 佳晃, 岩田 菜穂子, 中野 靖浩, 山本 紘一郎, 須山 敦仁, 灘 隆宏, 小川 弘子, 大塚 文男

    日本内分泌学会雑誌   96 ( 4 )   1041 - 1041   2021.4

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  • グルココルチコイドによる卵胞ステロイド合成調節とBMP分子の関与

    樫野 千明, 長谷川 徹, 中野 靖浩, 山本 紘一郎, 長尾 聡子, 岩田 菜穂子, 鎌田 泰彦, 増山 寿, 大塚 文男

    日本内分泌学会雑誌   96 ( 4 )   1076 - 1076   2021.4

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  • 体重減少を契機に発見された腎癌精査中にACTH分泌不全を認めた1例

    安田 美帆, 山本 紘一郎, 藤田 茉奈美, 孫 麗那, 岡 浩介, 長谷川 功, 松村 吉晃, 竹丸 紘史, 上松 克利, 大塚 文男

    日本内分泌学会雑誌   96 ( 4 )   1046 - 1046   2021.4

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  • グルココルチコイドによる卵胞顆粒膜細胞のステロイド合成調節とBMP-15の関与

    樫野 千明, 長谷川 徹, 中野 靖浩, 岩田 菜穂子, 山本 紘一郎, 鎌田 泰彦, 増山 寿, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   359 - 359   2021.4

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  • 慢性疲労症候群・線維筋痛症から診断されたACTH/GH分泌不全症の1例

    大塚 文男, 徳増 一樹, 越智 可奈子, 山本 紘一郎, 高瀬 了輔, 中野 靖浩, 長谷川 功, 三好 智子, 小川 弘子, 片岡 仁美

    日本内分泌学会雑誌   97 ( 1 )   301 - 301   2021.4

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  • 副腎皮質ステロイド合成における時計遺伝子およびBMP/activinの関与

    副島 佳晃, 岩田 菜穂子, 中野 靖浩, 山本 紘一郎, 須山 敦仁, 灘 隆宏, 小川 弘子, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   281 - 281   2021.4

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  • 副腎皮質ステロイド合成における時計遺伝子およびBMP/activinの関与

    副島 佳晃, 岩田 菜穂子, 中野 靖浩, 山本 紘一郎, 須山 敦仁, 灘 隆宏, 小川 弘子, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   228 - 228   2021.4

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  • 卵胞ステロイド合成系における時計遺伝子Clockと転写因子NR5A2の関与

    須山 敦仁, 岩田 菜穂子, 副島 佳晃, 中野 靖浩, 山本 紘一郎, 灘 隆宏, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   359 - 359   2021.4

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  • 高度肥満・性腺機能低下を来した21-水酸化酵素欠損症成人男性の1例

    山本 紘一郎, 岡 浩介, 藤田 茉奈美, 孫 麗那, 長谷川 功, 越智 可奈子, 中野 靖浩, 徳増 一樹, 本多 寛之, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   351 - 351   2021.4

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  • 総合診療における血清プロカルシトニン値と炎症・代謝マーカーの関連性

    荒木 晴, 岡 浩介, 山本 紘一郎, 花山 宜久, 徳増 一樹, 萩谷 英大, 小比賀 美香子, 小川 弘子, 糸島 浩一, 大塚 文男

    日本内分泌学会雑誌   97 ( 1 )   338 - 338   2021.4

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  • 松果体腫瘍の術後化学療法中に発症したG-CSF関連血管炎の1例

    田村 奈悠, 山本 紘一郎, 岡 浩介, 長谷川 功, 萩谷 英大, 大塚 文男

    日本リウマチ学会総会・学術集会プログラム・抄録集   65回   721 - 721   2021.3

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  • 低血糖性昏睡を繰り返した神経性食思不振症の1例

    山本 紘一郎, 大村 大輔, 山根 真衣, 孫 麗那, 中野 靖浩, 長谷川 功, 本多 寛之, 小比賀 美香子, 皆尾 望, 枝廣 暁, 大塚 文男

    日本内分泌学会雑誌   96 ( 3 )   788 - 788   2021.1

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  • グルココルチコイド反応性アルドステロン症の1家系に発症前診断しえた2例

    中野 靖浩, 岩田 菜穂子, 長谷川 高誠, 越智 可奈子, 山本 紘一郎, 高瀬 了輔, 長谷川 功, 堀口 繁, 山本 英喜, 平沢 晃, 大塚 文男

    日本内分泌学会雑誌   96 ( 3 )   782 - 782   2021.1

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  • 男性2型糖尿病患者におけるアンドロゲン低下と臨床的特徴

    浜原 潤, 本多 寛之, 山本 紘一郎, 中野 靖浩, 徳増 一樹, 花山 宜久, 萩谷 英大, 小比賀 美香子, 植田 圭吾, 岸田 雅之, 大塚 文男

    日本内分泌学会雑誌   96 ( 3 )   789 - 789   2021.1

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  • 再発性の低血糖性昏睡を合併した神経性食思不振症の1例

    山本 紘一郎, 大村 大輔, 長谷川 功, 本多 寛之, 皆尾 望, 枝廣 暁, 山田 了士, 大塚 文男

    総合病院精神医学   32 ( Suppl. )   S - 163   2020.11

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  • CYP11B1/B2キメラ遺伝子を確認した家族性アルドステロン症小児例

    中野 靖浩, 岩田 菜穂子, 長谷川 高誠, 越智 可奈子, 山本 紘一郎, 高瀬 了輔, 長谷川 功, 堀口 繁, 山本 英喜, 平沢 晃, 大塚 文男

    日本内分泌学会雑誌   96 ( 2 )   535 - 535   2020.10

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  • 神経性食思不振症の経過中に反復する低血糖性昏睡を来した1例

    山本 紘一郎, 大村 大輔, 山根 真衣, 孫 麗那, 中野 靖浩, 長谷川 功, 本多 寛之, 小比賀 美香子, 皆尾 望, 枝廣 暁, 大塚 文男

    日本内分泌学会雑誌   96 ( 2 )   563 - 563   2020.10

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  • 血清プロラクチン値と炎症パラメータの相関

    山本 紘一郎, 花山 宜久, 安田 美帆, 長谷川 功, 原田 洸, 徳増 一樹, 萩谷 英大, 三好 智子, 小川 弘子, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   96 ( 1 )   362 - 362   2020.8

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  • 内科疾患における血清PRL値の性差および炎症マーカーとの関連性

    山本 紘一郎, 花山 宜久, 長谷川 功, 原田 洸, 徳増 一樹, 萩谷 英大, 三好 智子, 小川 弘子, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   95 ( 4 )   1451 - 1451   2020.2

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  • 下垂体卒中を契機に浸透圧性脱髄症候群を生じた非機能性下垂体腺腫の1例

    横田 雄也, 岡 浩介, 安田 美帆, 長谷川 功, 山本 紘一郎, 萩谷 英大, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   95 ( 4 )   1452 - 1452   2020.2

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  • 総合診療における血清プロラクチン値の性差と炎症性病態への関与

    山本 紘一郎, 花山 宜久, 安田 美帆, 長谷川 功, 原田 洸, 徳増 一樹, 萩谷 英大, 三好 智子, 小川 弘子, 小比賀 美香子, 大塚 文男

    日本内分泌学会雑誌   95 ( 2 )   769 - 769   2019.10

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  • 膵酵素とアミノ酸製剤補充により改善した吸収不良症候群の1例

    山本 紘一郎, 中野 靖浩, 大村 大輔, 徳増 一樹, 長谷川 功, 堀口 繁, 花山 宜久, 小比賀 美香子, 小川 弘子, 大塚 文男

    日本病院総合診療医学会雑誌   15 ( 3 )   311 - 311   2019.5

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  • 回腸末端に潰瘍病変を認めた不明熱の1例

    栗山 裕, 徳増 一樹, 山本 紘一郎, 中野 靖浩, 大村 大輔, 高原 政宏, 長谷川 功, 小比賀 美香子, 花山 宜久, 大塚 文男

    日本病院総合診療医学会雑誌   14 ( 6 )   663 - 663   2018.11

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  • 意識障害で発症し一過性全健忘を生じた下垂体機能低下症の1例

    山本 紘一郎, 徳増 一樹, 中野 靖浩, 大村 大輔, 安田 美帆, 長谷川 功, 三好 智子, 小比賀 美香子, 花山 宜久, 大塚 文男

    日本内分泌学会雑誌   94 ( 2 )   684 - 684   2018.9

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  • 口腔内潰瘍で発症し骨髄不全症候群と腸管ベーチェット病の合併が疑われた1例

    山本 紘一郎, 木村 耕介, 岩室 雅也, 岡 浩介, 安田 美帆, 長谷川 功, 頼 冠名, 大塚 文男

    日本病院総合診療医学会雑誌   13 ( 1 )   165 - 165   2017.7

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  • バソプレッシンによる海馬神経細胞生存維持の分子機構の解明

    森野 未来, 松下 博昭, 山本 紘一郎, 道上 宏之, 西木 禎一, 松井 秀樹

    日本生理学雑誌   77 ( 1 )   30 - 31   2015.1

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Presentations

  • オキシトシンが卵巣顆粒膜細胞のステロイド合成に与える影響

    山本紘一郎, 中野 靖浩, 岩田 菜穂子, 副島 佳晃, 須山 敦仁, 大塚 文男

    第27回日本生殖内分泌学会学術集会  2022.12.17 

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  • 下垂体後葉ホルモンによる顆粒膜細胞のプロゲステロン合成調節と卵胞BMPの関与

    山本 紘一郎, 中野 靖浩, 岩田 菜穂子, 副島 佳晃, 須山 敦仁, 大塚 文男

    第28回日本生殖内分泌学会学術集会  2023.11.19 

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  • 後縦靱帯骨化症を合併し椎弓切除術を要した成人XLHの1例

    山本紘一郎, 本多寛之, 大國皓平, 中野靖浩, 徳増一樹, 長谷川 功, 長谷川高誠, 安原隆雄, 大塚文男

    第96回日本内分泌学会学術総会  2023.6.3 

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  • Functional interaction of oxytocin and BMPs in ovarian steroidogenesis by granulosa cells.

    山本紘一郎, 中野 靖浩, 岩田 菜穂子, 副島 佳晃, 須山 敦仁, 大塚 文男

    第96回日本内分泌学会学術総会  2023.6.1 

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  • 下垂体の器質的変化を伴う中枢性尿崩症: Erdheim-Chester病の3例の特徴から

    山本紘一郎, 髙瀬了輔, 大國皓平, 中野靖浩, 岡 浩介, 本多寛之, 長谷川 功, 花山宜久, 小比賀美香子, 大塚文男

    第33回日本間脳下垂体腫瘍学会  2023.3.4 

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  • 若年男性の橋本病による粘液水腫の1例

    山本紘一郎, 本多寛之, 中野靖浩, 長谷川 功, 大塚文男

    第65回日本甲状腺学会学術集会  2022.11 

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  • 新規PHEXバリアントを伴うXLHにブロスマブが奏効した1例

    山本紘一郎, 本多寛之, 中野靖浩, 徳増一樹, 長谷川 功, 長谷川高誠, 大塚文男

    第32回臨床内分泌代謝Update  2022.11 

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  • コロナ禍の若年男性に発症した著明な粘液水腫の1例

    山本紘一郎, 本多寛之, 中野靖浩, 長谷川 功, 大塚文男

    第32回臨床内分泌代謝Update  2022.11 

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  • 中枢性尿崩症と眼瞼黄色腫から診断したErdheim-Chester病の3例

    山本紘一郎, 髙瀬了輔, 大國皓平, 中野靖浩, 岡 浩介, 本多寛之, 長谷川 功, 花山宜久, 小比賀美香子, 大塚文男

    第32回臨床内分泌代謝Update  2022.11 

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  • オキシトシンおよびBMP分子が卵巣内分泌機能に与える影響

    山本紘一郎, 中野 靖浩, 岩田 菜穂子, 副島 佳晃, 須山 敦仁, 大塚 文男

    第48回日本神経内分泌学会学術集会  2022.10 

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  • 成人期にPHEX新規変異によるX染色体連鎖性低リン血症性骨軟化症と診断した1例

    山本紘一郎, 本多寛之, 高瀬了輔, 中野靖浩, 徳増一樹, 長谷川, 長谷川高誠, 大塚文男

    第23回内分泌学会中国支部学術集会  2022.9 

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  • Indicators for the effects of calcimimetics on hypercalcemia in the elderly patients with primary hyperparathyroidism

    Koichiro Yamamoto, Yasuhiro Nakano, Kazuki Tokumasu, Hiroyuki Honda, Kou Hasegawa, Mikako Obika, Yoshihisa Hanayama, Fumio Otsuka

    The Endocrine Society Meeting ENDO 2022  2022.9 

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  • 原発性副甲状腺機能亢進症に対するカルシウム受容体作動薬の治療効果と臨床パラメータの相関

    山本紘一郎, 中野靖浩, 徳増一樹, 本多寛之, 長谷川 功, 小比賀美香子, 三好智子, 小川弘子, 花山宜久, 大塚文男

    第95回日本内分泌学会学術総会  2022.6 

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  • 精巣副腎遺残腫瘍に関連し性腺機能低下を来した21-水酸化酵素欠損症の2例

    山本紘一郎, 本多寛之, 中野靖浩, 徳増一樹, 長谷川 功, 小比賀美香子, 花山宜久, 大塚文男

    第95回日本内分泌学会学術総会  2022.6 

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  • 頭部外傷が契機と考えられる中枢性尿崩症の1例

    山本紘一郎, 本多寛之, 田中秀一, 高橋美砂, 中野靖浩, 長谷川 功, 大塚文男

    第95回日本内分泌学会学術総会  2022.6 

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  • 21-水酸化酵素欠損症(21-OHD)の経過中に性腺機能低下を生じた2例から

    山本紘一郎, 本多寛之, 中野靖浩, 徳増一樹, 長谷川 功, 小比賀美香子, 花山宜久, 大塚文男

    第33回間脳・下垂体・副腎系研究会  2022.4 

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  • カルシウム受容体作動薬で治療した原発性副甲状腺機能亢進症患者の臨床的特徴

    山本紘一郎, 中野靖浩, 徳増一樹, 本多寛之, 長谷川 功, 小比賀美香子, 三好智子, 小川弘子, 花山宜久, 大塚文男

    第119回日本内科学会総会  2022.4 

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  • 高用量ステロイド治療が奏効した重症COVID-19妊婦の1例

    山本紘一郎, 萩谷英大, 牧 尉太, 岡原修司, 長谷川 功, 大塚文男

    第31回臨床内分泌代謝Update  2021.11 

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  • 非機能性下垂体腺腫を伴った偽性クッシング症候群の1例

    山本紘一郎, 花山宜久, 中野靖浩, 大村大輔, 本多寛之, 長谷川 功, 大塚文男

    第47回日本神経内分泌学会学術集会  2021.10 

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  • 下咽頭癌肺転移に対するペンブロリズマブ投与中に発症した ACTH 単独欠損症の1例

    山本紘一郎, 徳増一樹, 孫 麗那, 岡 浩介, 長谷川 功, 大塚文男

    第32回間脳・下垂体・副腎系研究会  2021.9 

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  • 全身倦怠感の精査から診断に至った高齢ACTH単独欠損症の1例

    山本紘一郎, 本多寛之, 田中秀一, 孫 麗那, 長谷川 功, 大塚文男

    第35回日本下垂体研究会学術集会  2021.8 

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  • 高度肥満・性腺機能低下を来した21-水酸化酵素欠損症成人男性の1例

    山本紘一郎, 岡浩介, 藤田茉奈美, 孫麗那, 長谷川功, 越智可奈子, 中野靖浩, 徳増一樹, 本多寛之, 小比賀美香子, 大塚文男

    第94回日本内分泌学会学術総会  2021.4 

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  • 免疫チェックポイント阻害薬の投与中に腹痛を伴わず発症した急性膵炎の1例

    山本紘一郎, 大塚文男

    第65回日本リウマチ学会総会・学術集会  2021.4 

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  • 性腺機能低下を伴いコロナ禍で高度肥満を呈した成人21-水酸化酵素欠損症の1例

    山本紘一郎, 岡浩介, 長谷川功, 越智可奈子, 中野靖浩, 徳増一樹, 本多寛之, 小比賀美香子, 大塚文男

    第28回日本ステロイドホルモン学会学術集会  2021.2 

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  • 再発性の低血糖性昏睡を合併した神経性食思不振症の1例

    山本紘一郎, 大村大輔, 長谷川功, 本多寛之, 皆尾望, 枝廣暁, 山田了士, 大塚文男

    第33回日本総合病院精神医学会総会  2020.12 

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  • 神経性食思不振症の経過中に反復する低血糖性昏睡を来した1例

    山本紘一郎, 大村大輔, 山根真衣, 孫麗那, 中野靖浩, 長谷川功, 本多寛之, 小比賀美香子, 皆尾望, 枝廣暁, 大塚文男

    第30回日本内分泌学会臨床内分泌代謝Update  2020.11 

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  • 低血糖性昏睡を繰り返した神経性食思不振症の1例

    山本紘一郎, 大村大輔, 山根真衣, 孫麗那, 中野靖浩, 長谷川功, 本多寛之, 小比賀美香子, 皆尾 望, 枝廣 暁, 大塚文男

    第21回日本内分泌中国支部学術集会  2020.9 

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  • 血清プロラクチン値と炎症パラメータの相関

    山本紘一郎, 花山宜久, 安田美帆, 長谷川功, 原田洸, 徳増一樹, 萩谷英大, 三好智子, 小川弘子, 小比賀美香子, 大塚文男

    第93回日本内分泌学会学術総会  2020.7 

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  • 総合診療における血清プロラクチン値の性差と炎症性病態への関与

    山本紘一郎, 花山宜久, 安田美帆, 長谷川功, 原田洸, 徳増一樹, 萩谷英大, 三好智子, 小川弘子, 小比賀美香子, 大塚文男

    第29回臨床内分泌代謝Update  2019.11 

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  • 内科疾患における血清PRL値の性差および炎症マーカーとの関連性

    山本紘一郎, 花山宜久, 安田美帆, 長谷川功, 原田洸, 徳増一樹, 萩谷英大, 三好智子, 小川弘子, 小比賀美香子, 大塚文男

    第46回日本神経内分泌学会学術集会  2019.10 

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  • 血清プロラクチン値の性差と炎症性病態への関与:内科臨床における検討

    山本紘一郎, 花山宜久, 安田美帆, 長谷川功, 原田 洸, 徳増一樹, 萩谷英大, 三好智子, 小川弘子, 小比賀美香子, 大塚文男

    第34回日本下垂体研究会学術集会  2019.8 

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  • 膵酵素とアミノ酸製剤補充により改善した吸収不良症候群の1例

    山本紘一郎, 中野靖浩, 大村大輔, 徳増一樹, 長谷川功, 堀口繁, 小比賀美香子, 小川弘子, 花山宜久, 大塚文男

    第18回日本病院総合診療医学会学術総会  2019.2 

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  • 意識障害で発症し一過性全健忘を生じた下垂体機能低下症の1例

    山本紘一郎, 徳増一樹, 中野靖浩, 大村大輔, 安田美帆, 長谷川功, 三好智子, 小比賀美香子, 花山宜久, 大塚文男

    第28回臨床内分泌代謝Update  2018.11 

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  • 一過性全健忘を生じた下垂体機能低下症の2例

    山本紘一郎, 徳増一樹, 中野靖浩, 大村大輔, 安田美帆, 長谷川功, 三好智子, 小比賀美香子, 花山宜久, 大塚文男

    第33回日本下垂体研究会学術集会  2018.8 

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  • 口腔内潰瘍で発症し骨髄不全症候群と腸管ベーチェット病の合併が疑われた1例

    山本紘一郎, 木村耕介, 岩室雅也, 岡浩介, 安田美帆, 長谷川功, 頼冠名, 大塚文男

    第14回日本病院総合診療医学会学術総会  2017.3 

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  • Functional interrelationship between oxytocin and bone morphogenetic proteins in ovarian steroidogenesis by granulosa cells.

    Koichiro Yamamoto, Yasuhiro Nakano, Nahoko Iwata, Yoshiaki Soejima, Atsuhito Suyama, Toru Hasegawa, Fumio Otsuka

    The Endocrine Society Meeting ENDO 2023  2023.6 

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  • Characteristics of serum ratios of 1,25-dihydroxyvitamin D to 25-hydroxyvitamin D for assessment of bone metabolism

    Koichiro Yamamoto, Manami Fujita, Hiroyuki Honda, Yoshihisa Hanayama, Kazuki Tokumasu, Yasuhiro Nakano, Kou Haegawa, Mikako Obika, Fumio Otsuka

    The Endocrine Society Meeting ENDO 2021  2021.3 

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Awards

  • 若手学術奨励賞

    2023.11   第28回日本生殖内分泌学会学術集会   下垂体後葉ホルモンによる顆粒膜細胞のプロゲステロン合成調節と卵胞BMPの関与

    山本紘一郎

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  • 大藤内分泌医学賞

    2023.8   下垂体後葉ホルモン:オキシトシンと卵胞成長因子BMPによる新たな卵巣機能調節メカニズムの解明

    山本紘一郎

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  • 優秀発表賞受賞

    2021.8   第35回下垂体研究会学術集会  

    山本紘一郎

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Academic Activities

  • 第49回日本神経内分泌学会学術集会 事務局長

    Role(s):Planning, management, etc.

    岡山大学学術研究院医歯薬学域総合内科学 教授 大塚文男  2023.10.27 - 2023.10.28

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    Type:Academic society, research group, etc. 

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  • リサーチマインドは役に立つ

    国立大学医学部長会議「若手研究者のひらめき~研究医への誘い~」  2022.12

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