Related Experiment Video
Updated: Dec 19, 2025

Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis
Published on: November 18, 2019
Increasing ovarian NAD+ levels improve mitochondrial functions and reverse ovarian aging
Qingling Yang1, Luping Cong1, Yujiao Wang1
1Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Supplementing aging mice with nicotinamide riboside (NR), an NAD+ precursor, restored ovarian NAD+ levels, improving follicle count, ovulation, and live birth rates, offering a potential therapy for age-related infertility.
Area of Science:
- Reproductive biology
- Mitochondrial biology
- Aging research
Background:
- Age-associated ovarian senescence leads to infertility due to follicle loss and decreased oocyte quality.
- Mitochondrial dysfunction is implicated in ovarian aging, but underlying mechanisms remain unclear.
Purpose of the Study:
- To investigate the role of Nicotinamide Adenine Dinucleotide (NAD+) in ovarian aging.
- To determine if NAD+ precursor supplementation can counteract age-related ovarian decline and infertility.
Main Methods:
- Measured age-dependent changes in ovarian NAD+ levels in mice.
- Administered nicotinamide riboside (NR), an NAD+ precursor, to aging mice.
- Assessed ovarian follicle number, oocyte quality, mitochondrial function, and live birth rates.
Main Results:
- Ovarian NAD+ levels decreased with age in mice.
- NR supplementation increased ovarian NAD+, follicle number, and ovulatory potential.
- NR reduced reactive oxygen species and spindle anomalies, improved mitochondrial membrane potential, and enhanced energy metabolism in aging oocytes.
Conclusions:
- Age-related decline in ovarian NAD+ contributes to infertility.
- NAD+ precursor supplementation, like NR, can reverse ovarian aging markers and improve reproductive outcomes.
- NAD+ precursor supplementation represents a promising therapeutic strategy for age-related ovarian infertility.
More Related Videos
Related Concept Videos
Oogenesis
Oogenesis
Each primary oocyte is surrounded by a layer of pre-granulosa cells, forming what is...
Mitochondria
Menopause
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...

