ArticleFrontiers in cell and developmental biology2025
Mitochonic acid 5 increases boar sperm quality by mitigating mitochondrial dysfunction.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Mitochondrial dysfunction causes an increase in oxidative stress and depletion in ATP production. Studies have shown that mitochonic acid 5 (MA-5) improves cellular mitochondrial metabolism and ATP production. To this end, varying concentrations of MA-5 (0.01, 0.1, 1, and 10 nM) were added to a BTS extender, and thereafter, sperm motility and morphological parameters were assessed. Results indicate that adding 1 nM MA-5 significantly enhanced boar sperm motility and progressive motility, with higher values observed at the 1- and 2-h time points compared to the control. Sperm membrane and acrosome integrity values between the control and treatment groups were not different, except for 10 nM MA-5, which caused a reduction in membrane integrity. Treatment with MA-5, specifically 1 nM MA-5, also significantly boosted mitochondrial membrane potential and ATP content at the 2-h incubation point. In addition, MA-5 treatments stabilized mitochondrial transcription and translation processes, maintained overall sperm functionality, increased NADPH dehydrogenase subunits 1 (MT-ND1) and NADPH dehydrogenase subunits 6 (MT-ND6) protein and gene expression, and affected mitochondrial transcription factor A (TFAM) levels. However, after 4 h of incubation with MA-5, a decline in sperm quality parameters and an increase in ROS levels were observed. Interestingly, adding 10 nM pyrroloquinoline quinone (PQQ) and MA-5 to the extender restored mitochondrial function by enhancing mitochondrial potential and ATP content after 4 h of incubation. Overall, treatment with 1 nM MA-5 can help maintain sperm quality and mitochondrial metabolism during incubation (up to 2 h) at 37
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