News tagged with sperm
Related topics: eggs , fertilizer , genes , infertility , females
Stem cells battle for space
The body is a battle zone. Cells constantly compete with one another for space and dominance. Though the manner in which some cells win this competition is well known to be the survival of the fittest, how stem cells duke ...
Medicine & Health / Medical research
Dec 04, 2009 |
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Hope for men with nonobstructive infertility
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 ...
Medicine & Health / Medical research
Dec 03, 2009 |
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'The pill' for him: Scientists find a hormonal on-and-off switch for male fertility
A new research report published in the December 2009 print issue of The FASEB Journal could one day give men similar type of control over their fertility that women have had since the 1960s. That's because scientists have f ...
Medicine & Health / Medical research
Nov 30, 2009 |
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For young boys with cancer, testicular tissue banking may be option to preserve fertility
For parents of children with cancer, the hopeful news is that pediatric survival rates have steadily improved for decades. Among the bad news—treatments that enable survival often cause infertility.
Nov 09, 2009 |
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Whales are polite conversationalists
What do a West African drummer and a sperm whale have in common? According to some reports, they can both spot rhythms in the chatter of an ocean crowded with the calls of marine mammals -- a feat impossible for the untrained ...
Oct 26, 2009 |
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Sperm may play leading role in spreading HIV
Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...
Medicine & Health / HIV & AIDS
Oct 26, 2009 |
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Sperm donor passed on sudden death heart defect
(AP) -- A sperm donor passed on a potentially deadly genetic heart condition to nine of his 24 children, including one who died at age 2 from heart failure, according to a medical journal report.
Medicine & Health / Medical research
Oct 20, 2009 |
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Putting the squeeze on sperm DNA
(PhysOrg.com) -- In the quest for speed, olympic swimmers shave themselves or squeeze into high-tech super-suits. In the body, sperm are the only cells that swim and, as speed is crucial to fertility, have ...
Sep 30, 2009 |
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Childhood kidney disorder has lasting effects
A kidney condition that can arise in children and was until recently believed to disappear after puberty may persist into adulthood and cause significant long-term complications, according to a study appearing in an upcoming ...
Medicine & Health / Diseases, Conditions, Syndromes
Sep 24, 2009 |
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French woman asks court for dead husband's sperm
A 39-year-old widow asked a French court Wednesday to allow her to retrieve her late husband's frozen sperm so that she can be inseminated and have his child.
Sep 23, 2009 |
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Study Positively Identifies Giant Squid Presence in Gulf of Mexico
(PhysOrg.com) -- During a recent research cruise, a rare giant squid was captured in the Gulf of Mexico.
Sep 21, 2009 |
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Taiwan scientists develop sperm 'efficiency' kit
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.
Medicine & Health / Medical research
Sep 17, 2009 |
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Possible genetic factor for male infertility identified
Virginia Commonwealth University School of Medicine researchers have discovered a gene involved with the production of sperm that may contribute to male infertility and lead to new approaches to male contraception.
Sep 15, 2009 |
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When you've doubled your genes, what's 1 chromosome more or less?
An individual with Down syndrome and a male calico cat have one thing in common -- each has an extra chromosome. For animals, most instances of an extra chromosome result in birth defects or even death, but plants are another ...
Sep 14, 2009 |
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Secrets in a seed: Clues into the evolution of the first flowers
Approximately 120-130 million years ago, one of the most significant events in the history of the Earth occurred: the first flowering plants, or angiosperms, arose. In the late 1800s, Darwin referred to their development ...
Sep 14, 2009 |
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