For species that rely on sexual reproduction, including mice and men, offspring can only happen if sperm from the male fertilize eggs from the female. Even artificial fertilization techniques depend on donors for both of ...
Sep 7, 2021
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A new way to prevent pregnancy without side effects may be possible with a prophylactic gel made from all natural, non-hormonal ingredients, scientists in Sweden report. The gel reinforces the cervical mucus barrier, offering ...
Nov 30, 2022
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Early in the development of sperm, a strange event happens: the X and Y chromosomes condense into tight packages and are sequestered away from the other 44 human chromosomes. If any part of this process goes awry, the cells ...
Feb 22, 2024
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Wayne State University School of Medicine researchers have reported that zinc supplements for men and women attempting to conceive either naturally or through assisted reproduction during the COVID-19 pandemic may prevent ...
Feb 4, 2021
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(HealthDay)—Various methods are available for reducing the risk of HIV transmission in HIV-discordant couples who would like to attempt conception, according to research published in the June 2 issue of the U.S. Centers ...
Jun 5, 2017
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Scientists have developed new technology to help couples undergoing in-vitro fertilization (IVF) due to male fertility problems to increase their chances of success in having a baby.
Apr 6, 2023
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Surveys show most men in the United States are interested in using male contraceptives, yet their options remain limited to unreliable condoms or invasive vasectomies. Recent attempts to develop drugs that block sperm production, ...
Feb 20, 2024
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Scientists from the RIKEN BioResource Center in Tsukuba, Japan, have discovered that a single mutation in the beta-catenin gene, which codes a protein known to be deeply involved in a number of developmental and homeostatic ...
Nov 7, 2014
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Researchers from the University of Southampton have established that eggs have a protective 'checkpoint' that helps to prevent DNA damaged eggs being fertilised.
Nov 2, 2015
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(Medical Xpress)—Human reproduction is simple. A sperm cell carries the man's genome into the egg. There, during fertilization, male and female genomes comingle in a way that fuses different traits from each parent into ...
Mar 14, 2014
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