NIH-funded research R21 grant

Understanding how egg cells are formed and maintained in women's ovaries

Official title: Ovarian reserve formation and maintenance

Funded at University of California at Davis · NIH-10772155 · Data updated 2026-11-12

This study is looking at how certain changes in immature egg cells help keep a woman's supply of eggs healthy over time, which is important for her ability to have children and can affect how long she stays fertile.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of California at Davis
NIH-funded
Lab location1 site (Davis, United States)
Project startFebruary 1, 2023
Project endJuly 31, 2025
Funding year2024
Award (this year)$200,208
NIH project number5R21HD110146-02
Project IDNIH-10772155 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are women of reproductive age who are interested in understanding their fertility and ovarian health.

Less likely to help

Patients who are post-menopausal or those who have undergone surgical removal of their ovaries may not benefit from this research.

What this research studies

This research investigates the role of epigenetic states in oocytes, which are immature egg cells, that reside in primordial follicles and contribute to the maintenance of the ovarian reserve in women. The ovarian reserve is crucial for defining a woman's reproductive lifespan, and the study aims to uncover how these egg cells are preserved over time. By isolating non-growing oocytes, the researchers will analyze their chromatin profiles to understand the mechanisms that prevent the depletion of these cells, which can lead to menopause. This work could provide insights into female fertility and longevity.

Why it matters

Potential benefit: If successful, this research could lead to improved understanding and potential treatments for female infertility and menopause-related issues.

How similar studies have gone: Other research has shown promising results in understanding ovarian biology, but this specific approach to studying epigenetic states in oocytes is relatively novel.

Where this research is happening

  • University of California at Davis
    Davis, United States
    Active

Researchers

  • Principal investigator: Namekawa, Satoshi — University of California at Davis
  • Study coordinator: Namekawa, Satoshi

Related research

Other NIH-funded projects on the same topics.

  • UC Davis IGA Innovation Center

    A research center at UC Davis will study gene-edited livestock to improve animal health, safety, and policy through sharing genetic data and findings about genome edits in cattle, pigs, sheep, and goats.

    NIH research University of California at Davis · Davis, United States · NIH-11641870

  • Administrative Core of an equitable breast cancer screening program

    A national program headed from UC Davis is coordinating several research efforts to improve how breast cancer screening is done in community settings.

    NIH research University of California at Davis · Davis, United States · NIH-11622111

  • The role of novelty and surprise in learning for people with Alzheimer’s disease

    A study explores how surprising events affect memory and learning in people related to Alzheimer’s disease, using everyday tasks to see how the brain remembers new information.

    NIH research University of California at Davis · Davis, United States · NIH-11617755

  • Understanding how distraction affects students and how to measure it better

    This grant studies why distracted students, including those with ADHD, struggle in real-life learning and tests a clearer way to measure distraction in everyday settings.

    NIH research University of California at Davis · Davis, United States · NIH-11617018

  • California Partnership for Personalized Nutrition

    A California clinical center is testing personalized dietary approaches to improve blood sugar and health for adults with diabetes by using big data and AI to tailor meals.

    NIH research University of California at Davis · Davis, United States · NIH-11605720

  • Advancing gastric cancer care for Latinos through patient-derived tumor models

    Aimed at Latinos with gastric cancer, this project uses patient-derived tumor models to study how cancer biology and treatments work in real tumors.

    NIH research University of California at Davis · Davis, United States · NIH-11603175

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.