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Stinky Gas Invigorates Sperm

Hydrogen sulphide, a gas known for its rotten egg smell, may be able to help men improve the quality of their sperm and thus their fertility, if a National University of Singapore (NUS) study on animals is translatable to humans. Published in the journal Nitric Oxide, the new findings can potentially give rise to new approaches in treating male infertility.

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Team Identifies Gene Responsible for Some Cases of Male Infertility

In the most severe form of male infertility, men do not make any measurable levels of sperm. This condition, called azoospermia, affects approximately 1 percent of the male population and is responsible for about a sixth of cases of male infertility.
Oftentimes men with azoospermia don’t know the underlying cause of their condition. But new research led by University of Pennsylvania scientists suggests that mutations in an X chromosome gene called TEX11 are responsible for a significant number of cases of infertility—an estimated 1 percent of cases of non-obstructive azoospermia.

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First X-Chromosome Related Cause of Male Infertility Identified

The known causes of male infertility not due to physical obstruction are usually because of sex-chromosome defects, such as deletions of the Y chromosome or duplication of the entire X chromosome in Klinefelter syndrome. Eight times out of 10, conventional genetic testing doesn’t reveal a chromosomal problem and infertility is considered idiopathic. We wanted to try to find other genetic reasons for the problem.

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X-Linked Gene Mutations Cause Some Cases of Male Infertility, Study Says

Some cases of male infertility are due to mutations in the maternal X chromosome that prevent development of viable sperm, according to a study led by researchers at the University of Pittsburgh School of Medicine and the Magee-Womens Research Institute (MWRI). The study was published online today in the New England Journal of Medicine.

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Caution Greets Claim Human Sperm Grown in Lab

Human sperm cells have been grown in a laboratory in a breakthrough that could lead to a treatment for male infertility, scientists claim. A French firm said it had produced “fully formed” sperm from basic reproduction cells. The research has not yet been published in a peer-reviewed journal, and experts greeted the news with caution. However, if proven, the technique could offer hope to people who cannot have children

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Cystic Fibrosis Linked to Pancreatitis, Male Infertility

According to a new study led by scientists at the University of Pittsburgh School of Medicine, cystic fibrosis could be considered two diseases, one that affects multiple organs including the lungs, and one that doesn’t affect the lungs at all. Researchers say 9 variants in the gene associated with CF can lead to pancreatitis, sinusitis, and male infertility.