Gene Mutation Key to Infertility in Male Mice
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WEDNESDAY, Oct. 17 (HealthDay News) -- A defect in a gene that's essential for the formation of functioning sperm cells may cause infertility by preventing the head of sperm from being able to penetrate an egg.
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Traditionally drug use, alcohol, smoking and obesity have been credited with lowering male sperm counts and increasing the risk of infertility.
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Scientists in Hong Kong and China have identified for the first time a protein in sperm from humans and from mice that could be responsible for many unexplained cases of male infertility.
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NEW YORK  - Experiments in mice show that  treating uterine fibroids with gene therapy that inactivates  the fibroid's estrogen receptors causes them to shrink. This  might lead to a way to deal with fibroids without impairing a  woman's fertility, researchers say.
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The options for male contraception have been limited to condoms and vasectomies. But researchers now point to a new method that shows promise, a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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Scientists in the United States have genetically engineered mice which can run twice as far as normal before becoming exhausted. The researchers say their finding could lead to drugs or gene
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By altering a gene, scientists have produced "marathon mice" with more muscle, less fat, and twice the endurance of regular mice. The find could lead to new anti-obesity drugs.
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THURSDAY, Nov. 11 (HealthDayNews) -- A vaccine against a sperm-related protein made male monkeys temporarily infertile, an approach that might lead to a contraceptive for men, researchers report.
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Scientists identify a gene fault linked the development of lung cancers.
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Researchers have discovered a gene mutation which prevents otherwise healthy carriers from feeling pain.
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Scientists believe they have discovered a gene which plays a critical role in the development of sperm.
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Scientists have transplanted into infertile mice sperm stem cells grown in a laboratory, thus allowing the mice to reproduce -- an approach that one day might be used to cure infertility in men -- according to a study published in the November issue of
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Trials on humans and rats show promise of a gene therapy cure for erectile dysfunction, scientists say.
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A mutant gene triggers mental retardation by changing the way brain cells communicate, research shows.
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Men who weigh too much are more likely to have poor sperm quality, research on nearly 1,600 young Danish men has found. Being too thin is a problem, too.
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A small pilot study shows that  gene therapy might help men with erectile dysfunction.
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[Health India]: Washington, Dec 28: A new study conducted by Washington University School of Medicine suggests that genetic variations in a protein in the brain of mice, the absence of which makes them react to stress differently.