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Melatonin Alleviates Heat Stress-induced Oxidative Stress and Apoptosis in Human Spermatozoa by Feifei Zhao; Sara Whiting; Sarah Lambourne; R. John Aitken; Ying-pu Sun is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Oxidative stress generates a large amount of reactive oxygen species (ROS) and affects sperm quality via damaging sperm DNA and compromising the intracellular homeostasis in human spermatozoa. In assisted reproductive technology (ART), it is substantial to prevent spermatozoa from ROS attack. The pineal hormone melatonin has the natural antioxidant capacity and can scavenge ROS. To the best of our knowledge, however, there are presently no studies investigating if melatonin can protect human spermatozoa from heat-induced oxidative damage. Herein, we induced oxidative stress in human spermatozoa with heat treatment, and determined that melatonin could protect human spermatozoa from heat-induced oxidative stress. We first confirmed that heat stress-induced oxidative stress damaged human spermatozoa by decreasing sperm motility and viability. Furthermore, the pretreatment of human spermatozoa by melatonin was able to alleviate such damage by suppressing sperm mitochondrial ROS generation, increasing mitochondrial membrane potential, reducing the formation of the lipid peroxidation product, 4-HNE, and reducing sperm DNA damage and apoptosis. Collectively, these findings suggest that me

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Author

Feifei Zhao; Sara Whiting; Sarah Lambourne; R. John Aitken; Ying-pu Sun

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)