Yuko Takada

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Blockade of a mineralocorticoid receptor is a clinically useful approach to the prevention of cardiovascular disease. The present study was designed to evaluate the effect of azelnidipine, a unique dihydropyridine Ca(2+) channel blocker, on aldosterone production in the human adrenocortical cell line NCI-H295R. Azelnidipine inhibited angiotensin II- and(More)
The vegetable, Anastasia Red, Capsicum annuum L. var. angulosum Mill. (Solanaceae) was successively extracted with hexane, acetone, methanol and 70% methanol, and the extracts were further separated into a total of 21 fractions by silica gel or octadecylsilane (ODS) column chromatography. The biological activities of extracts and fractions were determined.(More)
Based on the reported anti-inflammatory and anti-stress responses by corticotropin-releasing factor (CRF) receptor signaling, endogenous CRF receptor agonists, CRF, urocortin (UCN) I and its related peptides, may play protective roles against cardiovascular stresses via the CRF receptor signaling. Therefore, the present study was designed to evaluate the(More)
The treatment of an aldehyde with a tertiary homoallylic alcohol at 100-250 degrees C in the presence of cesium carbonate and a rhodium catalyst leads to allyl transfer from the homoallylic alcohol to the aldehyde. The process includes Rh-mediated retroallylation to form an allyl rhodium species as the key intermediate. The homoallylic alcohol formed(More)
The atropisomeric properties of seven-membered-ring benzolactams (7a-c and 8a) [1,5-benzodiazepin-2-one (a), 1,5-benzothiazepin-4-one (b), and 1-benzazepin-2-one (c)] were examined. The atropisomers were isolated as the diastereomers with an (S)-phenethylamide moiety, which were characterized by X-ray crystallography, and the barriers to their(More)
Edema is defined as the condition in which intraluminal lymph fluid components leak into the tissues and the interstitium fluid is abnormally increased. At the site of edema, toxication, allergy or inflammation occasionally occurs. This paper will focus on local skin and mucosal edema. Toxic edema is locally caused by intake of industrial goods or medical(More)
Retro-allylation of homoallyl alcohol by rhodium catalysis occurs to generate allylrhodium species. This allylrhodium reacts with aldehydes to give the corresponding secondary alcohols in situ. Isomerization of these alcohols proceeds in the same pots to furnish the corresponding saturated ketones in good yields. [reaction: see text]
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