Kumiko Naito

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UNLABELLED In a cohort of 2356 Japanese elderly, after adjusting for age and prevalent vertebral fracture, baseline BMD predicted the risk of spine and hip fracture with similar RR to that obtained from previous reports in whites. The RR per SD decrease in BMD for fracture declined with age. INTRODUCTION Low bone mineral density (BMD) is one of the most(More)
OBJECTIVE The purpose of our study was to evaluate the diagnostic performance of sonographic elastography and B-mode sonography individually and combined in the differentiation of reactively and metastatically enlarged cervical lymph nodes. SUBJECTS AND METHODS Eighty-five lymph nodes (metastatic, n = 53; reactive, n = 32) from 37 patients were examined(More)
PURPOSE in vivo, the attenuation of diffusion-weighted imaging (DWI) signal at high b-values is sometimes nonlinear when plotted with semilogarithmic function and is fit well by a biexponential function. Previous reports have indicated that the fast and slow component fractions of the apparent diffusion coefficient (ADC) can be derived by biexponential(More)
Previous studies have reported that the signal attenuation of diffusion weighted magnetic resonance imaging for tumor tissues displays a non-monoexponential biexponential decay, and the apparent diffusion coefficients (ADCs) can be divided into a fast and slow diffusion component by using a simple biexponential decay model. The purpose of this study is to(More)
Primary leaves of intact bean plants (Phaseolus vulgaris) were treated with benzyladenine (BA) at different stages of growth. Changes in the ultrastructure of chloroplasts and the contents of chlorophyll, carotenoid, and protein (soluble and insoluble) in leaves with different treatments were followed and compared. When BA was applied from an early stage,(More)
PURPOSE To determine whether exposure to atomic bomb radiation altered the prevalence of asymptomatic atherosclerosis. MATERIAL AND METHODS In a cross-sectional analysis, we examined aortic arch calcification by plain chest radiography and common carotid artery intima-media thickness (IMT) by ultrasonography among 1804 survivors of the atomic bombing in(More)
Small, regulatory, non-coding RNA (ncRNA) is involved in various cell functions in both prokaryotes and eukaryotes. However, information on ncRNA in cyanobacteria is still scarce. We studied ncRNA genes by computational screening to compare the intergenic regions of the Synechococcus elongatus PCC 6301 genome with the genomes of three freshwater(More)
Cyclin D2 was isolated as one of the genes expressed early in adipogenesis. The expression of cyclin D2 increased temporarily early on and then again late in the differentiation process. The expression of cyclin D1 and cyclin D3, the other D-type cyclins, was also transiently induced early during adipocyte differentiation. RNAi (RNA interference)-mediated(More)
An imprinted gene, paternally expressed gene (peg) 10, was isolated as one of the genes expressed early in adipogenesis. The expression of peg10 was elevated after the addition of inducers, and was detected in adipocyte differentiable 3T3-L1 cells, but not observed in the non-adipogenic cell line NIH-3T3. Moreover, the knockdown of peg10 by RNA interference(More)
BACKGROUND Previous studies have reported that the signal attenuation of diffusion-weighted magnetic resonance imaging (DWI) for normal breast tissue and tumor were well fitted by a monoexponential and a biexponential function, respectively. The aim of this study was to investigate the optimal b-value to detect breast tumors from DWI signal attenuations. (More)
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