Modulation of Human Sperm Mitochondrial Respiration Efficiency by Plant Polyphenols

Antioxidants

卷:10

Lamberto Coppola¹  Francesco Murrieri¹  Loredana Capobianco²  Vincenzo Zara²  Paola Lunetti²  Alessandra Ferramosca²  Mariangela Di Giacomo²  Stefano Lorenzetti³  Vincenza Dolce⁴ 

[1] Biological Medical Center “Tecnomed”, I-73048 Nardò (LE), Italy;

[2] Department of Biological and Environmental Sciences and Technologies, University of Salento, I-73100 Lecce, Italy;

[3] Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, I-00161 Rome, Italy;

[4] Department of Pharmacy, Health, and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende (Cosenza), Italy;

关键词: quercetin;    naringenin;    luteolin;    apigenin;    genistein;    resveratrol;   

DOI  :  10.3390/antiox10020217

来源: DOAJ

【 摘 要 】

Plant bioactives, such as polyphenols, can differentially affect (positively or negatively) sperm quality, depending on their concentration. These molecules have been proposed as natural scavengers of reactive oxygen species (ROS) for male infertility treatment. However, few data are available about their effects on the molecular mechanisms related to sperm quality and, in particular, to sperm mitochondrial function. We investigated the effects of quercetin, naringenin, genistein, apigenin, luteolin, and resveratrol at the concentration of 0.1–1000 nM on mitochondrial respiration efficiency. Upon chemical exposure, spermatozoa were swollen in a hypotonic solution and used for polarographic assays of mitochondrial respiration. All tested compounds, except for apigenin, caused a significant increase in the mitochondrial respiration efficiency at the concentration of 0.1 nM, and a significant decrease starting from concentrations of 10 nM. The analysis of oxygen consumption rate in the active and in the resting state of mitochondrial respiration suggested different mechanisms by which the tested compounds modulate mitochondrial function. Therefore, by virtue of their ability to stimulate the respiration active state, quercetin, genistein, and luteolin were found to improve mitochondrial function in asthenozoospermic samples. Our results are relevant to the debate on the promises and perils of natural antioxidants in nutraceutical supplementation.

【 授权许可】

Unknown