Black Tea High-Molecular-Weight Polyphenol Increases the Motility of Sea Urchin Sperm by Activating Mitochondrial Respiration

Ayako KIKUCHI; Kogiku SHIBA; Tetsuo OZAWA; Kentaro NAKANO; Kazuo INABA; Osamu NUMATA

doi:10.1271/bbb.120493

Food & Nutrition Science Notes

Black Tea High-Molecular-Weight Polyphenol Increases the Motility of Sea Urchin Sperm by Activating Mitochondrial Respiration

Ayako KIKUCHI, Kogiku SHIBA, Tetsuo OZAWA, Kentaro NAKANO, Kazuo INABA, Osamu NUMATA

著者情報

キーワード: high-molecular-weight polyphenol, mitochondria, sperm motility, sea urchin, flagella

ジャーナルフリー

2012 年 76 巻 12 号 p. 2321-2324

DOI https://doi.org/10.1271/bbb.120493

View "Advance Publication" version (December 7, 2012).

詳細

抄録

Mitochondria activation factor (MAF) is a high-molecular-weight polyphenol purified from black tea that activates mitochondrial respiration. It increased the mitochondrial membrane potential and motility of sea urchin sperm, by up to 8%, to the same extent as sperm-activating peptides (SAPs) secreted by the egg. Unlike SAPs, MAF had no effect on sperm swimming behavior, suggesting that the mechanism of sperm activation by MAF is different from that of SAPs.

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）