As more people delay parenthood, demand is growing for treatments for age-related fertility decline. A Nature Aging study reviewed emerging therapies and experimental technologies that may slow reproductive aging.
Background
Female fertility declines rapidly after 30, pregnancy rates fall sharply from 30-40, and miscarriage exceeds 90% after 45. Male fertility also declines, with higher chromosomal-abnormality and miscarriage risks when fathers are over 40.
Supplements and assisted reproductive technology (ART) cannot fully restore fertility. Robust trials are needed, especially for older patients.
Mechanisms of Reproductive Aging
Female reproductive aging
Ovarian follicles are gradually depleted, while remaining oocytes lose quality through mitochondrial dysfunction and chromosomal abnormalities.
Reduced mitochondrial activity impairs energy, increases oxidative stress, and causes meiotic errors. Ovarian fibrosis and inflammation may further restrict follicle growth.
Male reproductive aging
Age reduces sperm motility and morphology and increases DNA damage, potentially lowering embryo quality and implantation. Oxidative stress also damages testicular cells and reduces testosterone.
Interventions for Female Reproductive Aging
Dietary supplements
CoQ10, melatonin, and NAD+ boosters such as NMN and NR have shown potential in animal studies through better mitochondrial function and oocyte quality.
Medications
Metformin and Rapamycin may slow follicle depletion or improve mitochondria. BGP-15 may reduce ovarian fibrosis.
Advances in assisted reproduction
IVF and ICSI remain main options, but success declines with age. Mitochondrial replacement therapy (MRT) and in vitro gametogenesis (IVG) are emerging approaches.
Approaches to Male Reproductive Aging
Potential approaches include Idebenone and melatonin for motility and DNA damage, plus hormonal interventions to improve testosterone.
Conclusion
Therapies require large human trials for efficacy and safety. MRT and IVG also require careful ethical and long-term safety evaluation.
News | Emerging Therapies Target Age-Related Fertility Challenges
As more people delay parenthood, demand is growing for treatments for age-related fertility decline. A Nature Aging study reviewed emerging therapies and experimental technologies that may slow reproductive aging.
Background
Female fertility declines rapidly after 30, pregnancy rates fall sharply from 30-40, and miscarriage exceeds 90% after 45. Male fertility also declines, with higher chromosomal-abnormality and miscarriage risks when fathers are over 40.
Supplements and assisted reproductive technology (ART) cannot fully restore fertility. Robust trials are needed, especially for older patients.
Mechanisms of Reproductive Aging
Female reproductive aging
Ovarian follicles are gradually depleted, while remaining oocytes lose quality through mitochondrial dysfunction and chromosomal abnormalities.
Reduced mitochondrial activity impairs energy, increases oxidative stress, and causes meiotic errors. Ovarian fibrosis and inflammation may further restrict follicle growth.
Male reproductive aging
Age reduces sperm motility and morphology and increases DNA damage, potentially lowering embryo quality and implantation. Oxidative stress also damages testicular cells and reduces testosterone.
Interventions for Female Reproductive Aging
Dietary supplements
CoQ10, melatonin, and NAD+ boosters such as NMN and NR have shown potential in animal studies through better mitochondrial function and oocyte quality.
Medications
Metformin and Rapamycin may slow follicle depletion or improve mitochondria. BGP-15 may reduce ovarian fibrosis.
Advances in assisted reproduction
IVF and ICSI remain main options, but success declines with age. Mitochondrial replacement therapy (MRT) and in vitro gametogenesis (IVG) are emerging approaches.
Approaches to Male Reproductive Aging
Potential approaches include Idebenone and melatonin for motility and DNA damage, plus hormonal interventions to improve testosterone.
Conclusion
Therapies require large human trials for efficacy and safety. MRT and IVG also require careful ethical and long-term safety evaluation.
Source:
Collected online