News tagged with sperm quality
High levels of cycling training damage triathletes' sperm
Jun 29, 2009 |
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The high-intensity training undertaken by triathletes has a significant impact on the quality of their sperm, the 25th annual conference of the European Society of Human Reproduction and Embryology heard today (Monday 29 ...
New Sperm shaker set to improve IVF success rates
Jan 19, 2009 |
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Scientists have developed a ground-breaking method for testing the quality of a sperm before it is used in IVF and increase the chances of conception.
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Quality control mechanism tags defective sperm cells inside the body
Biology /
Jan 23, 2008 |
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Defective sperm cells do not pass through the body unnoticed. A new University of Missouri study provides evidence that the body recognizes and tags defective sperm cells while they undergo maturation in the epididymis, a ...
Daily sex helps to reduce sperm DNA damage and improve fertility
Jun 30, 2009 |
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Daily sex (or ejaculating daily) for seven days improves men’s sperm quality by reducing the amount of DNA damage, according to an Australian study presented today (Tuesday) to the 25th annual meeting of the European Society ...
Taiwan scientists develop sperm 'efficiency' kit
Sep 17, 2009 |
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Scientists in Taiwan said Thursday they have invented a male fertility home test kit that breaks new ground by measuring the efficiency of sperm cells -- a key factor in determining men's ability to father children.
Hope for men with nonobstructive infertility
Dec 03, 2009 |
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It has been thought that men with non-obstructive azoospermia (NOA), a lack of sperm in the semen not caused by an obstruction within the reproductive system, are poor candidates for IVF. Now, researchers writing in the open ...
Male painters exposed to fertility damaging chemicals
May 23, 2008 |
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Men working as painters and decorators who are exposed to glycol ethers are more likely to have poor semen quality, according to research carried out by scientists from the Universities of Sheffield and Manchester.
Normal-looking sperm may have serious damage; scientists urge more care in selection
Jul 08, 2008 |
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Intracytoplasmic sperm injection (ICSI), where a single sperm is injected into an egg to fertilise it, is increasingly used to help infertile men father children. Although the sperm chosen for the procedure may appear quite ...
Spread your sperm the smart way
Jul 09, 2009 |
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(PhysOrg.com) -- Attractive males release fewer sperm per mating to maximise their chances of producing offspring across a range of females, according to a new paper on the evolution of ejaculation strategies. The findings ...
Too much sperm may kill the queen
Biology /
Jun 16, 2006 |
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Researchers at CSE (Centre for Social Evolution) at the Institute of Biology, University of Copenhagen have studied the sperm-quality among ants.
Worm sperm gives clue to male infertility
Sep 05, 2006 |
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U.S. scientists say they have used the nematode worm to identify a raft of new proteins vital for healthy sperm production.
Good males are bad fathers
Jun 25, 2009 |
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Contrary to predictions, males of high genetic quality are not very successful when it comes to fertilizing eggs. A new study on seed beetles by Swedish and Danish scientists Göran Arnqvist and Trine Bilde shows that when ...
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