Related Experiment Video
Updated: Sep 21, 2025

Author Spotlight: Advancing Male Infertility Research by Unraveling Sperm Metabolism and Mitochondrial Function
Published on: June 23, 2023
Age-Related Decline of Male Fertility: Mitochondrial Dysfunction and the Antioxidant Interventions
Jing-Jing Wang1, Shu-Xia Wang1, Tehmina1
1School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
Abstract:
Mitochondria are structurally and functionally unique organelles in male gametes. Apparently, as the only organelles remaining in mature sperm, mitochondria not only produce adeno-sine triphosphate (ATP) through oxidative phosphorylation (OXPHOS) to support sperm mobility, but also play key roles in regulating reactive oxidation species (ROS) signaling, calcium homeostasis, steroid hormone biosynthesis, and apoptosis. Mitochondrial dysfunction is often associated with the aging process. Age-dependent alterations of the epididymis can cause alterations in sperm mitochondrial functioning. The resultant cellular defects in sperm have been implicated in male infertility. Among these, oxidative stress (OS) due to the overproduction of ROS in mitochondria may represent one of the major causes of these disorders. Excessive ROS can trigger DNA damage, disturb calcium homeostasis, impair OXPHOS, disrupt the integrity of the sperm lipid membrane, and induce apoptosis. Given these facts, scavenging ROS by antioxidants hold great potential in terms of finding promising therapeutic strategies to treat male infertility. Here, we summarize the progress made in understanding mitochondrial dysfunction, aging, and male infertility. The clinical potential of antioxidant interventions was also discussed.
Insights
Mitochondrial dysfunction in sperm contributes to male infertility, particularly due to aging and oxidative stress. Antioxidant therapies show promise for treating these conditions.
Area of Science:
- Reproductive Biology
- Mitochondrial Biology
- Aging Research
Background:
- Mitochondria are vital organelles in sperm, producing ATP for motility and regulating key cellular processes.
- Mitochondrial dysfunction is linked to aging and contributes to male infertility.
- Oxidative stress from excessive reactive oxygen species (ROS) is a major factor in sperm dysfunction.
Purpose of the Study:
- To review the role of mitochondrial dysfunction in aging and male infertility.
- To discuss the impact of ROS on sperm health.
- To explore the therapeutic potential of antioxidants.
Main Methods:
- Literature review and synthesis of existing research.
- Analysis of the mechanisms linking mitochondrial dysfunction, aging, and male infertility.
- Discussion of clinical evidence for antioxidant interventions.
Main Results:
- Mitochondrial dysfunction, exacerbated by aging, impairs sperm function through oxidative stress.
- Excessive ROS damages sperm DNA, disrupts calcium homeostasis, and compromises motility.
- Antioxidant strategies are a promising avenue for managing male infertility.
Conclusions:
- Mitochondrial health is critical for male fertility.
- Targeting ROS and improving mitochondrial function may offer effective treatments for male infertility.
- Further research into antioxidant interventions is warranted.
Related Concept Videos
Infertility in Males
Mitochondria
Spermatogenesis
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Mitochondrial Membranes
Menopause

