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Articles by M Inaba
Total Records ( 3 ) for M Inaba
  K Mori , S Jono , M Emoto , T Kawagishi , H Yasumoto , T Konishi , Y Furumitsu , A Shioi , T Shoji , M Inaba and Y. Nishizawa

Osteoprotegerin is a secretory glycoprotein. Recent experimental findings have suggested that osteoprotegerin may protect against vascular calcification and/or atherosclerosis. In humans, osteoprotegerin levels are positively correlated with the presence and severity of coronary artery disease and the progression of atherosclerosis. However, it is unclear how osteoprotegerin levels are regulated. Statins are known to have beneficial pleiotropic effects against atherosclerosis beyond their lipid-lowering effects. In this study, we examined whether treatment with pravastatin can alter osteoprotegerin levels in patients with hypercholesterolemia and type 2 diabetes. Osteoprotegerin levels were significantly increased from 6.64 ± 2.18 pmol/L at baseline to 7.08 ± 2.29 pmol/L (P = .024) after 3-month treatment with pravastatin. These increases in osteoprotegerin levels remained after 6 months of treatment (7.05 ± 2.22 pmol/L, P = .026). These findings suggest that pravastatin may exert its pleiotropic effects in part through alteration of osteoprotegerin levels.

  H Koyama , S Fukuda , T Shoji , M Inaba , Y Tsujimoto , T Tabata , S Okuno , T Yamakawa , S Okada , M Okamura , H Kuratsune , H Fujii , Y Hirayama , Y Watanabe and Y. Nishizawa

Background and objectives: Despite potential significance of fatigue and its underlying components in the occurrence of cardiovascular diseases, epidemiologic data showing the link are virtually limited. This study was designed to examine whether fatigue symptoms or fatigue's underlying components are a predictor for cardiovascular diseases in high-risk subjects with ESRD.

Design, setting, participants, & measurements: 788 volunteer patients under hemodialysis therapy (506 male, 282 female) completed the survey between October and November 2005, with the follow-up period up to 26 months to monitor occurrence of fatal or nonfatal cardiovascular events. The questionnaire consisted of 64 questions, and promax rotation analysis of the principal component method conceptualized eight fatigue-related factors: fatigue itself, anxiety and depression, loss of attention and memory, pain, overwork, autonomic imbalance, sleep problems, and infection.

Results: 14.7% of the patients showed fatigue scores higher than twice the SD of the mean for healthy volunteers. These highly fatigued patients exhibited a significantly higher risk for cardiovascular events (hazard ratio: 2.17; P < 0.01), with the relationship independent of the well-known risk factors, including age, diabetes, cardiovascular disease history, and inflammation and malnutrition markers. Moreover, comparisons of the risk in key subgroups showed that the risk of high fatigue score for cardiovascular events was more prominent in well-nourished patients, including lower age, absence of past cardiovascular diseases, higher serum albumin, and high non-HDL cholesterol.

Conclusions: Fatigue can be an important predictor for cardiovascular events in patients with ESRD, with the relationship independent of the nutritional or inflammatory status.

  I Kobayashi , E Ishimura , K Hirowatari , T Tsuchida , A Nishihira , H Shima , K Shidara , K Mori , M Inaba , K. i Wakasa and Y. Nishizawa

A renal biopsy was performed in a 47-year-old man with haemophilia A. Thirty minutes after administration of an intravenous bolus of 4000 units of recombinant factor VIII, which increased the activity to 74–91%, a needle renal biopsy was successfully performed, followed by administration of 3000 units of factor VIII in the evening, and then the subsequent morning and evening. The patient was diagnosed with hepatitis C virus-associated membranoproliferative glomerulonephritis. Treatment with interferon, ribavirin, prednisolone and cyclosporine A improved the nephrotic syndrome. This is the first report of a successful renal biopsy in a patient with haemophilia A after factor VIII injection.

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