Y. Nishikawa

Publications10
h-index4
Citations85
Highly Influential Citations3
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Determination of picogram quantities of rare-earth elements in meteoritic materials by direct-loading thermal ionization mass spectrometry
A procedure for dlrect-loading isotope dliution mass spectrometry (DL-IDMS) of rare-earth elements (REE), alkailneearth metals (Mg, Ca, Sr, and Ba), alkali metals (K and Rb), and Iron In… Expand
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Effects of astaxanthin and vitamin C on the prevention of gastric ulcerations in stressed rats.
Astaxanthin (Asx), one of the carotenoids, is a red pigment in fish and Crustaceans, and possesses stronger reduction properties than conventional carotenoids, like beta-carotene. However, little is… Expand
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Effects of vitamin C on high blood pressure induced by salt in spontaneously hypertensive rats.
By breeding and feeding salt to spontaneously hypertensive rats (SHR) continuously over a long period (until 60 wk old), rats with systolic blood pressures (SBP) of over 270 mmHg were prepared. It… Expand
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Antiallergic activity and mode of action of N-[4-[4-(diphenylmethyl)-1-piperazinyl]butyl]-3-(6-methyl-3- pyridyl)acrylamide in experimental animals.
Antiallergic effects of AL-3264 (N-[4-[4-(diphenylmethyl)-1-piperazinyl]butyl]-3-(6-methyl-3- pyridyl)acrylamide, CAS 118420-47-6) were compared with those of ketotifen, oxatomide, azelastine and… Expand
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Growth Inhibition of Food Spoilage Bacteria by Wild-Grass Extracts
Water extracts from 25 species of wild grasses were examined for their antimicrobial activities against four food spoilage bacteria, Escherichia coli, Staphylococcus aureus, Bacillus subtilis, and… Expand
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Time-dependent changes of tissue erythorbic acid concentrations in guinea pigs.
The concentrations of erythorbic acid(ErA) and L-ascorbic acid(AsA) in the tissues of guinea pigs orally administered AsA or ErA were measured over the passage of time using high-performance liquid… Expand
Effect of Some Health Food Materials and Vitamin C on the Stressed Rats
CLINICAL APPLICATION OF AN INDWELLING NEEDLE FOR ESOPHAGEAL VARICES IN ENDOSCOPIC INJECTION SCLEROTHERAPY WITH SIMULTANEOUS LIGATION
Endoscopic injection sclerotherapy (EIS), in which a sclerosing agent is infused into esophageal varices, is advantageous in obstructing a blood‐supplying route; however, accurate intravascular… Expand
Polyphenol Content in Wild Grasses by the Folin-Denis Assay
Investigation of the Weathering Effect on Rb-Sr Systematics and Trace Element Abundances in Antarctic and Non-Antarctic Meteorites: A Case of H-Chondrites
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