After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional sperm and the ensuing death of the embryo. This is according to a new study led by researchers ...
Cell & Microbiology
Mar 14, 2024
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5
Mutations that disrupt development of germ cells cause infertility or birth defects. Mutations that cause female infertility in humans, such as mutations in the gene BMP15, also cause infertility in zebrafish. However, female ...
Cell & Microbiology
Jan 22, 2024
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45
Mice lacking a certain gene are unable to produce offspring because their sperm lack the connection between the tail and the head. A new thesis from the University of Gothenburg indicates a probable cause of male infertility.
Cell & Microbiology
Jan 18, 2024
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0
With male infertility a mounting global concern impacting approximately 12% of men, according to the National Institutes of Health, a Penn State research team has discovered a gene that plays a key role in initiating and ...
Cell & Microbiology
Oct 25, 2023
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43
Epidemiological studies have shown that infertility affects 12% to 15% of couples of reproductive age in developed countries, and at least 25% in underdeveloped ones—overall, 186 million people worldwide. In about 40% of ...
Cell & Microbiology
Aug 3, 2023
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20
A new protein named MAIA after the Greek goddess of motherhood could be crucial in helping doctors better understand some aspects of infertility and develop novel treatments. Currently, infertility is unexplained in more ...
Cell & Microbiology
Sep 7, 2022
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191
If you are moaning once again about your suitcase being far too small as your vacation approaches, you should take human sperm cells as an inspiration. During their production, they are faced with an almost insoluble task. ...
Cell & Microbiology
Jul 11, 2022
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65
Scientists at Cincinnati Children's appear to have flipped another piece in the underexplored puzzle of male infertility.
Cell & Microbiology
Oct 26, 2021
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47
Why do women over 35 have more difficulty getting pregnant? After discovering one of the causes of age-related female infertility, researchers at the University of Montreal Hospital Research Centre (CRCHUM) suggest that it ...
Cell & Microbiology
Aug 23, 2021
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130
Mammalian sperm cannot fertilize an egg from the get-go. It's an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, time-sensitive processes to provide ...
Cell & Microbiology
Aug 20, 2021
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