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Chronic stress during adolescence may reduce fertility in adulthood, suggests study

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2024-05-15T07:45:10+05:30  |  Updated On 15 May 2024 12:41 PM IST
Chronic stress during adolescence may reduce fertility in adulthood, suggests study
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Male rats exposed to moderate and repeated stress during adolescence may have reduced fertility, according to research presented at the 26th European Congress of Endocrinology in Stockholm. This study sheds light on the harmful effects that early-life stress has on health and could help to uncover future prevention strategies for children and adolescents.

While hormone levels fluctuate pathologically-especially during life stages such as puberty-stress can cause too much or too little of a hormone in the bloodstream. This hormonal imbalance negatively impacts puberty and the reproduction system, with effects on libido, ovulation function and sperm cell production. However, the long-term reproductive effects of chronic stress in adolescents are largely unknown.

In this study, researchers from the V.P. Komisarenko Institute of Endocrinology and Metabolism of the National Academy of Medical Science of Ukraine, examined male and female rats, aged 6 months, after individually placing about half of them in enclosed spaces for one hour every morning for two weeks during adolescence (30–45 days old). They compared the rats who had been exposed to these stressful conditions to the control group and found that chronic stress during puberty delayed sexual maturity in females, and males gained weight more slowly. In adult males, sperm count fell by 25.9%, some sperm were abnormally shaped and sluggish or became immobile, and the breathing process by which sperm cells derive energy slowed down. Additionally, males had almost two times lower levels of corticosterone – the main stress hormone in rats, equivalent to cortisol in humans.

“Our work is the first to report to show that even moderate and repetitive stress in adolescence has a long-lasting negative impact on the endocrine system of reproduction and adaptation of the body to changing living conditions,” said lead investigator, Professor Aleksander Reznikov.

“Our results make it possible to predict the development of anomalies in reproduction and bodily adaptation systems and are the basis for finding methods for their prevention.”

Professor Reznikov added: “We discovered for the first time that lipid peroxidation (a process in which oxidants like free radicals attack lipid membranes of cells and eventually damage them) in the ovaries and testes was significantly increased. This, however, needs further investigation.”

European Society of Endocrinologystressfertility
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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