The impact of mitochondrial dysfunction on ovarian aging

Area of Science:

• Reproductive biology
• Cellular aging
• Mitochondrial medicine

Background:

• Ovarian aging, a decline in ovarian function with age, significantly impacts female fertility.
• Mitochondrial function is critical for oocyte and granulosa cell health, playing a key role in the aging process.
• Deterioration of mitochondria leads to reduced oocyte quality and impaired follicle development.

Purpose of the Study:

• To review and synthesize current research on the role of mitochondrial function in ovarian aging.
• To elucidate the mechanisms by which mitochondria influence oocyte and granulosa cell functions.
• To identify potential therapeutic strategies for mitigating mitochondrial decline and supporting female reproductive health.

Main Methods:

• Systematic literature review of studies on mitochondrial dysfunction and ovarian aging.
• Keywords used: "mitochondrial dysfunction", "decline in oocyte quality and quantity", "ovarian aging".
• Databases searched: PubMed, Google Scholar, CNKI.

Main Results:

• Ovarian aging is characterized by decreased oocyte quantity/quality, hormonal fluctuations, and reduced granulosa cell function.
• Mitochondria impact fertility through energy metabolism regulation, oxidative stress, mitochondrial DNA damage, and granulosa cell function.
• Mitochondrial dysfunction contributes to diminished ovarian reserve.

Conclusions:

• Mitochondrial decline affects oocyte/granulosa cell energy production, reactive oxygen species (ROS) levels, and calcium ion (Ca2+) concentration, driving ovarian aging.
• Understanding these mechanisms provides insights into ovarian aging.
• Targeting mitochondrial dysfunction presents a promising therapeutic avenue for delaying ovarian aging and enhancing female reproductive health.