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American Focus > Blog > Health and Wellness > How DNA shapes reproductive health, fertility and even life expectancy
Health and Wellness

How DNA shapes reproductive health, fertility and even life expectancy

Last updated: December 14, 2024 2:11 am
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How DNA shapes reproductive health, fertility and even life expectancy
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Genetic Variations and Reproductive Health: A Comprehensive Review

A recent review published in Nature Aging, led by researchers from the University of Oxford’s Leverhulme Center for Demographic Science and the University of Iceland, delves into the relationship between genetic variations and reproductive health. The study explores how our DNA can explain differences in reproductive traits, fertility, and longevity.

The researchers utilized the GWAS Catalog, an online database of Genome Wide Association Studies, to identify 159 genetic studies and 37 key genes linked to reproductive traits such as age at first childbirth, menopause timing, and hormone levels like follicle-stimulating hormone (FSH) and testosterone. These findings highlight the significant role genetic factors play in reproductive health and broader health outcomes.

One of the key genes identified in the review is FSHB, which is associated with eleven different reproductive outcomes. This gene regulates menstruation onset and menopause timing, showcasing its importance in reproductive health and aging. The study also revealed connections between reproductive genes and rare genetic disorders, emphasizing how DNA influences both fertility and overall health.

Professor Melinda Mills, the senior lead author of the study, emphasized the importance of understanding the genetic factors that underpin an individual’s reproductive health and fertility window, especially as more people delay parenthood. The research sheds light on common genes across reproductive traits and their connections to broader health issues like body mass index (BMI), obesity, hormone-sensitive cancers, and psychiatric and behavioral traits.

The review also explores the links between reproductive genes and longevity, highlighting how genes like ESR1 can influence both reproductive traits and cancer risk. Additionally, genes like FTO, known for their associations with BMI and obesity, were found to be linked to various reproductive traits. Understanding these genetic connections is crucial as more individuals choose to delay childbearing, making reproductive health and aging even more intertwined.

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While previous research has primarily focused on female reproductive health, the study also reviews the genetics of male fertility. Genes like DNAH2 play a role in testosterone levels and sperm function, underscoring their significance in male reproductive health. Co-author Vincent Straub emphasized the need to explore the genetics of male infertility to uncover new insights and potential treatments for reproductive challenges.

The review also examines how genetic changes affect future generations, as parents accumulate de novo mutations that can be passed on to their children. These mutations can impact the health and development of offspring, emphasizing the importance of understanding how genes shape reproductive health across generations.

Overall, this comprehensive review offers valuable insights into how genetic variations influence reproductive health, fertility, and longevity. These findings provide a foundation for more personalized healthcare approaches that could improve outcomes for individuals and families, spanning multiple generations. The research underscores the intricate relationship between genetics and reproductive health, paving the way for new advancements in healthcare.

TAGGED:DNAexpectancyfertilityHealthLifereproductiveShapes
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