S. Kuwahara

Publications258
h-index23
Citations2,176
Highly Influential Citations25
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Male-Released Sex Pheromone of the Stink Bug Piezodorus hybneri
TLDR
Male-released semiochemicals of the stink bug Piezodorus hybneri elicit attraction of male and female bugs and homosexual behavior in males, and Behavioral observation and the fact that the onset of pheromone production is coincident with ovarian development strongly suggest that these semiochemistryicals are, in fact, sex phermones.
Synthesis of (-)-periplanone-B a sex pheromone component of the American cockroach (periplaneta americana)
Abstract The naturally occurring (-)-enantiomer of periplanone-B was synthesized stereoselectively starting from ( S )-3-cyclohexene-1-carboxylic acid. The crystalline pheromone was obtained in 12%…
Lupinacidin C, an inhibitor of tumor cell invasion from Micromonospora lupini.
TLDR
Lupinacidin C exhibited the most potent inhibitory effects among the congeners on the invasion of murine colon carcinoma cells into the reconstituted basement membrane.
Medicinal alkaloid as a sex pheromone
Enantioselective Total Synthesis of Enokipodins A–D, Antimicrobial Sesquiterpenes Produced by the Mushroom, Flammulina velutipes
  • Mana Saito, S. Kuwahara
  • Medicine, Chemistry
    Bioscience, biotechnology, and biochemistry
  • 1 January 2005
The first enantioselective total synthesis of enokipodins A, B, C and D, highly oxidized α-cuparenone-type sesquiterpenoids possessing antimicrobial activity, was accomplished in 8–28% overall yields…
Comparison of the effects of curcumin and curcumin glucuronide in human hepatocellular carcinoma HepG2 cells.
TLDR
It is found that the effects of curcumin glucuronide are weaker than those ofCurcumin and that this difference is related to relative absorption rates of curCumin and curcuronide into HepG2 cells.
Evaluation of lipid oxidation mechanisms in beverages and cosmetics via analysis of lipid hydroperoxide isomers
TLDR
In this study, a new HPLC-MS/MS method is developed that enables analysis of ELAOOH isomers that appears to be powerful tools to elucidate lipid oxidation mechanisms in food and cosmetic products.
(R-Z)-7,15-hexadecadien-4-olide, sex pheromone of the yellowish elongate chafer, Heptophylla picea.
TLDR
Synthetic (R,Z)-7,15-hexadecadien-4-olide, prepared from L-malic acid in 14 steps, was identical to the natural product in MS, IR, retention times and biological activity, and is the first fatty acid derivative compound found as a sex pheromone of a Melolonthinae species.
Synthesis and Anti-Angiogenic Activity of Cortistatin Analogs
Analogs of cortistatins, a series of anti-angiogenic compounds isolated from the Indonesian marine sponge Cortisium simplex, were synthesized from estrone by using the Suzuki-Miyaura coupling…
A novel chiral stationary phase LC-MS/MS method to evaluate oxidation mechanisms of edible oils
TLDR
The combination of the developed CSP-LC-MS/MS method with lipase proves to be a powerful tool to evaluate the involvement and mechanisms of lipid oxidation in the process of food deterioration.
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