Yukihiro Imanishi

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We attempted to measure the area and volume of visceral fat using magnetic resonance (MR) imaging to avoid radiation exposure. We used water suppression-spectral attenuation with inversion recovery (WS-SPAIR) as prepulses and conducted T(1) high-resolution isotropic volume examination (THRIVE). Image processing software can be used to estimate the area and(More)
1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) is known to be involved in regulating the proliferation of parathyroid cells and PTH synthesis through reactions involving its nuclear receptor. We evaluated the effects of 1,25-(OH)2D3 and its hexafluorinated analog, 26,26,26,27,27,27-hexafluoro-1,25-dihydroxyvitamin D3 (26,27-F6-1,25-(OH)2D3), on parathyroid cells.(More)
[ala2]Enkephalin molecules were connected to dextran, and the affinities of the enkephalin/dextran conjugates for opioid receptors were studied. Two kinds of enkephalin derivatives, YaGFLGK-NH2 and YaGFLGS'S'PS'S'PS'KP-OMe (S' represents a Sar residue) were prepared. They retained the high affinity of the enkephalin unit toward opioid receptors. On the(More)
The uptake and binding of 17 alpha, 21-dimethyl-19-nor-4,9-pregnadiene-3,20-dione, a synthetic progestin, by the hypothalamus and cerebral cortex of ovariectomized oestrogen-primed rats was examined in vitro. Uptake of this steroid by the medial basal hypothalamus was higher than that by the remaining hypothalamus and cerebral cortex. The component in the(More)
Utilizing techniques of Sephadex G-200 column chromatography, sucrose density gradient ultracentrifugation and dextran-coated charcoal adsorption, the characterization of progesterone-binding proteins was attempted in cytosols obtained from the medial basal hypothalamus including the median eminence, the remaining hypothalamus and the cerebral cortex of(More)
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