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Blanco-Prieto, Olga; Catalán, Jaime; Trujillo-Rojas, Lina; Peña, Alejandro; Rivera Del Álamo, Maria Montserrat; Llavanera, Marc; Bonet, Sergi; Fernández-Novell, Josep Maria; Yeste, Marc; Rodríguez-Gil, Joan E
Cells (Basel, Switzerland), 11/2020, Letnik: 9, Številka: 12Journal Article
This work analyzes the effects of red LED light on mammalian sperm mitochondrial function, using the pig as an animal model. Liquid-stored pig semen was stimulated with red-light for 1, 5 and 10 min in the presence or absence of oligomycin A, a specific inhibitor of mitochondrial ATP synthase, or carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone (FCCP), a specific disruptor of mitochondrial electron chain. Whereas exposure for 1 and 5 min significantly ( < 0.05) decreased total motility and intracellular ATP levels, irradiation for 10 min induced the opposite effect. Oligomycin A abolished the light-effects on intracellular ATP levels, O consumption and mitochondrial membrane potential, whereas compared to non-irradiated samples, FCCP significantly ( < 0.05) increased O consumption when sperm were irradiated for 1 min. Both oligomycin A and FCCP significantly ( < 0.05) decreased total motility. Red-light increased cytochrome oxidase activity with a maximal effect after 5 min of irradiation, which was abolished by both oligomycin A and FCCP. In conclusion, red-light modulates sperm mitochondrial function via electron chain activity in an exposition, time-dependent manner.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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