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Related Concept Videos

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Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Related Experiment Video

Updated: Aug 21, 2025

Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
03:19

Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes

Published on: June 28, 2024

484

Selenium supplementation and pregnancy outcomes.

Carl R Dahlen1, Lawrence P Reynolds1, Joel S Caton1

  • 1Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND, United States.

Frontiers in Nutrition
|November 17, 2022
PubMed
Summary
This summary is machine-generated.

Selenium (Se) is vital for reproductive health in both sexes. Supplementation during pregnancy may improve fertility, pregnancy outcomes, and offspring development, especially in nutritionally compromised cases.

Keywords:
developmental programmingfetusoffspringovarypregnancyseleniumsupplementationtestis

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Area of Science:

  • Reproductive Biology
  • Nutritional Science
  • Developmental Biology

Background:

  • Selenium (Se) is an essential micronutrient critical for reproductive functions in vertebrates and invertebrates.
  • Se deficiency or excess negatively impacts gonadal function, gamete quality, and fertility in both males and females.
  • Maternal Se status during pregnancy is linked to adverse outcomes like miscarriage, pre-eclampsia, and fetal growth restriction.

Purpose of the Study:

  • To review the role of selenium in reproductive processes and pregnancy outcomes.
  • To highlight the impact of selenium on gametogenesis, fertilization, embryonic development, and maternal-fetal health.
  • To explore the potential benefits of selenium supplementation in managing reproductive and pregnancy-related complications.

Main Methods:

  • Review of existing literature on selenium's role in mammalian reproduction and pregnancy.
  • Analysis of studies investigating selenium's effects on gonadal function, embryo development, and maternal-fetal parameters.
  • Examination of animal model data on selenium supplementation during pregnancy.

Main Results:

  • Selenium is crucial for ovarian and testicular function, improving sperm quality and female fertility.
  • In vitro studies show selenium enhances embryo development by reducing oxidative stress and DNA damage.
  • Maternal selenium supplementation influences fetal growth, vascular development, placental growth, and offspring postnatal development.

Conclusions:

  • Selenium supplementation can potentially improve fertility and pregnancy outcomes, particularly in nutritionally compromised pregnancies.
  • Adequate selenium levels are vital for successful reproduction and healthy offspring development.
  • Further research across diverse species is warranted to fully elucidate the benefits of selenium supplementation in mammalian reproduction.