Papers - UCHIDA Haruhito

Steroid pulse therapy impaired endothelial function while increasing plasma high molecule adiponectin concentration in patients with IgA nephropathy. Reviewed International journal

Haruhito Adam Uchida, Yoshio Nakamura, Masanobu Kaihara, Hisanao Norii, Yoshihisa Hanayama, Hitoshi Sugiyama, Yohei Maeshima, Yasushi Yamasaki, Hirofumi Makino

Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association   21 ( 12 )   3475 - 80   2006.12

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BACKGROUND: Decreased plasma adiponectin is associated with impaired endothelial function and, thereby, increased risk for cardiovascular events. Glucocorticoid (GC) affects vascular endothelial cells either favourably or harmfully depending upon the dosages and duration. We examined the effect of GC pulse therapy on vascular endothelial function. METHODS: Fourteen young patients with IgA nephropathy were evaluated for flow-mediated vasodilation (FMD), plasma levels of adiponectin both in high molecular weight (HMW adiponectin) form and in single molecular form (total adiponectin), hepatocyte growth factor (HGF), asymmetric dimethylarginine (ADMA), and high-sensitive C-reactive protein, before and after a course of GC pulse therapy. RESULTS: GC pulse therapy significantly decreased FMD (from 7.2 +/- 2.6 to 5.7 +/- 2.5%, P < 0.01). Meanwhile, plasma adiponectin levels were significantly augmented (total adiponectin: from 10.2 +/- 4.0 to 12.1 +/- 6.3 microg/ml, P < 0.05; HMW: from 6.5 +/- 3.2 to 7.7 +/- 3.3 microg/ml, P < 0.05). In parallel, elevated concentrations of serum HGF (from 0.28 +/- 0.12 to 0.63 +/- 0.38 ng/ml, P < 0.01) and plasma ADMA (from 0.45 +/- 0.07 to 0.53 +/- 0.04 nmol/ml, P < 0.05) were observed. CONCLUSIONS: GC pulse therapy impaired endothelial function while increasing plasma adiponectin levels, which may in turn restore the endothelial function in patients with IgA nephropathy.

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An elderly patient with severe acute renal failure due to sodium bromate intoxication. Reviewed

Haruhito A Uchida, Hitoshi Sugiyama, Sadahide Kanehisa, Kazushi Harada, Kenta Fujiwara, Tetsuya Ono, Michio Yamakido, Hirofumi Makino

Internal medicine (Tokyo, Japan)   45 ( 3 )   151 - 4   2006

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Accidental or deliberate ingestion of bromate solution has been reported in pediatric as well as adult cases; however there have been no reports of such intoxication in the elderly. We report a 78-year-old woman who suffered severe acute renal failure due to the accidental ingestion of sodium bromate solution. The patient was successfully treated with hemodialysis therapy and renal function recovered without hearing loss. This case suggests that emergency therapeutic measures, including hemodialysis, should be taken as soon as possible, and the rapid removal of bromate is essential to prevent severe intoxication and its sequelae. To the best of our knowledge this is the first report of an elderly patient that demonstrates the clinical benefit of hemodialysis therapy for bromate intoxication.

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Practical efficacy of telmisartan for decreasing morning home blood pressure and pulse wave velocity in patients with mild-to-moderate hypertension. Reviewed International journal

Haruhito Uchida, Yoshio Nakamura, Masanobu Kaihara, Taro Sugimoto, Hisanori Norii, Motofumi Sasaki, Hajime Sato, Hirofumi Makino

Hypertension research : official journal of the Japanese Society of Hypertension   27 ( 8 )   545 - 50   2004.8

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The current guideline-recommended blood pressure values are difficult to maintain in general practice, partly due to the lack of ideal anti-hypertensive agents. Since morning hypertension has a high correlation with cardiovascular events, expectations that telmisartan, a long-acting angiotensin-II type-1 receptor blocker (ARB), can improve cardiovascular mortality are high. In this study, the efficiency of telmisartan in reducing morning hypertension and pulse wave velocity (PWV) as a practical surrogate endpoint was investigated. Seventeen unsupervised and 7 untreated hypertensive patients were prescribed telmisartan 40 mg/day for 3 months. Medication already prescribed upon enrollment in this study was continued, with the exception of ARBs (all of which turned out to be losartan 50 mg/day), which were discontinued and replaced with telmisartan. Morning home blood pressure (MHBP), office blood pressure (OBP), and brachial-ankle PWV (baPWV) were investigated in a prospective fashion. A stratified analysis was performed regarding previous use (group L) or non-use (group N) of losartan. Over a 3-month period, telmisartan was found to significantly reduce both OBP (from 153+/-13/85+/-9 to 141+/-17/80+/-7 mmHg (p <0.01)) and MHBP (from 153+/-23/93+/-11 to 137+/-22/82+/-10 mmHg (p <0.001)). Surprisingly, 7 patients (70%) from group L achieved an OBP of less than 140/90 mmHg by simply changing their medication to telmisartan. Furthermore, baPWV fell significantly from 1,892+/-334 cm/s to 1,672+/-324 cm/s (p <0.01), which was greater than the change in baPWV estimated by OBP reduction. Here it must be mentioned that there were no significant differences between group L and group N in the courses of blood pressures and baPWV. In conclusion, telmisartan 40 mg/day was found to be effective for reducing MHBP and arterial wall stiffness in patients with mild-to-moderate hypertension, and thus may also be effective for improving cerebrocardiovascular mortality.

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Pelvic lymphocyst infection associated with maternally inherited diabetes mellitus. Reviewed International journal

Daisuke Ogawa, Kenichi Shikata, Mitsuhiro Matsuda, Jun Wada, Haruhito Uchida, Maki Asada, Hirofumi Makino

Diabetes research and clinical practice   61 ( 2 )   137 - 41   2003.8

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A 45-year-old woman with 20-year history of diabetes mellitus was admitted to our hospital because of high fever and abdominal pain. Radical hysterectomy and bilateral pelvic lymphadenectomy had been performed 4 months before admission for invasive cervical cancer. On admission, elastic hard tumors were palpable in the lower abdomen. Laboratory examination showed positive C-reactive protein (CRP), anemia and renal dysfunction. Computed tomography (CT) revealed several lymphocysts in the pelvis. She was diagnosed with infection of pelvic lymphocysts. Since her mother also had diabetes associated with deafness, we examined mitochondrial DNA in leukocytes and detected an A to G transition at the nucleotide position of 3243 (A3243G mutation). She was diagnosed as maternally inherited diabetes mellitus and deafness (MIDD). Puncture of the cysts followed by administration of antibiotics resulted in marked improvement of symptoms and laboratory findings. This is a rare case of pelvic lymphocyst infection in a patient with a mitochondrial disorder. Although the exact mechanism of infection is not clear, MIDD may represent an unusual risk factor for infection, and further investigation is necessary to assess the influence of mitochondrial dysfunction on the immune system. Pelvic lymphocyst infection should be considered in the differential diagnosis of abdominal pain and fever in patients with MIDD after abdominal surgery.

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