Hirofumi Tomiyama

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The present study was conducted to evaluate the validity and reproducibility of noninvasive brachial-ankle pulse wave velocity (baPWV) measurements and to examine the alteration of baPWV in patients with coronary artery disease (CAD). Simultaneous recordings of baPWV by a simple, noninvasive method and aortic pulse wave velosity (PWV) using a catheter tip(More)
The present study was conducted to evaluate the influences of age and gender on the results of noninvasive brachial-ankle pulse wave velocity (baPWV). In 12517 subjects who had no medication and no history of cardiovascular diseases, multiple regression analysis demonstrated that age, blood pressure, body mass index, triglycerides, blood glucose, and uric(More)
BACKGROUND Arterial stiffness is an important risk factor for cardiovascular disease. Carotid-femoral pulse wave velocity (cfPWV) is the most recognized and established index of arterial stiffness. An emerging automatic measure of PWV primarily used in the Asian countries is brachial-ankle PWV (baPWV). METHOD To systematically compare these two(More)
BACKGROUND PLA2G6 is the causative gene for infantile neuroaxonal dystrophy, neurodegeneration associated with brain iron accumulation, and Karak syndrome. Based on previous reports, patients with PLA2G6 mutations could show axonal dystrophy, dystonia, dementia, and cerebellar signs. Recently, PLA2G6 was also reported as the causative gene for early-onset(More)
The arterial wall has 3 layers (ie, the intima, including the endothelium, the media, and the adventitia); each of these layers has individual roles in systemic circulation. The vascular endothelium regulates the vascular tone, hemostasis and/or vascular permeability, and the media is the major determinant of arterial elasticity, which regulates the conduit(More)
The present study attempted to establish whether elevated serum levels of alanine aminotransferase (ALT) and gamma glutamyltransferase (GGT) are independent (of each other) markers of systemic inflammation and oxidative stress as assessed by the plasma levels of C-reactive protein (CRP) and lipid peroxides (lipOX), regardless of the presence of underlying(More)
The measurement of brachial-ankle pulse wave velocity (baPWV) is simple and applicable for general population studies. The present study was conducted to evaluate the applicability of baPWV for screening cardiovascular risk as well as for use as a marker of the severity of atherosclerotic vascular damage in a general population. baPWV was measured in a(More)
Although cells of the osteoblast lineage express functional ERs, direct effects of estrogen on bone formation remain obscure. In the present study, we have investigated estrogen effects on osteoblastic and adipocytic differentiation from a mouse bone marrow stromal cell line, ST-2, which had been manipulated to overexpress either human ER alpha (ST2ER(More)
Although the associations between arterial calcification or advanced atherosclerosis and osteopenia have been well documented, it is not clear whether the one is the result of the other or they coprogress from the early stages through common mechanisms. Thus, we measured pulse wave velocity (PWV), which reflects earlier phase atherosclerosis, and osteo-sono(More)