News tagged with sperm cells
Effect of medication is affected by copies of genetic information
The results may help to explain why certain medications have strong side effects on sperm and eggs, and why certain organisms remain unaffected by environmental changes. This is shown by studies that researchers from the ...
Genetics
Apr 10, 2013 |
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Sorting out fertility after childhood cancer
As success rates in treating childhood cancers have improved, greater emphasis is being placed on quality of life issues following successful treatment. Many cancer treatments can lead to infertility, but there are few methods ...
Cancer
Mar 15, 2013 |
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Paternal obesity impacts child's chances of cancer
A father's obesity is one factor that may influence his children's health and potentially raise their risk for diseases like cancer, according to new research from Duke Medicine.
Overweight and Obesity
Feb 05, 2013 |
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One cell is all you need: Innovative technique can sequence entire genome from single cell
The notion that police can identify a suspect based on the tiniest drop of blood or trace of tissue has long been a staple of TV dramas, but scientists at Harvard have taken the idea a step further. Using ...
Genetics
Jan 07, 2013 |
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Scientists test new toxicant detection tool, links to abnormal fetal development
For more than 40 years, Bisphenol A, more commonly known as BPA, was used in everything from plastic baby bottles and the lining of metal food containers to dental sealants. When scientists began seeing a connection between ...
Health
Dec 07, 2012 |
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Insight into DNA reprogramming during egg and sperm cell development
Scientists at the Babraham Institute have gained a new understanding of when and how the DNA in developing egg and sperm cells is 'reset', in preparation for making a new embryo. It is well known that small chemical groups ...
Genetics
Dec 06, 2012 |
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Stem cell study: Male fertility can be restored after cancer treatment
An injection of banked sperm-producing stem cells can restore fertility to male primates who become sterile due to cancer drug side effects, according to researchers at the University of Pittsburgh School of Medicine and ...
Medical research
Nov 01, 2012 |
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UNM Cancer Center researcher looks for genetic markers for ovarian cancer
Ovarian cancer is a deadly disease. With no overt symptoms and no screening tests to catch it early, ovarian cancer is often detected at stage 3 or later. By then, it can be very aggressive and may have spread beyond the ...
Cancer
Oct 23, 2012 |
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Sperm precursor cells made in the lab could one day restore male fertility
(Medical Xpress)—Human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs) can be coaxed into becoming precursor sperm cells, suggesting that it might be possible one day to restore fertility ...
Medical research
Aug 28, 2012 |
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Male mice exposed to chronic social stress have anxious female offspring
A study in mice conducted by researchers at Tufts University School of Medicine (TUSM) suggests that a woman's risk of anxiety and dysfunctional social behavior may depend on the experiences of her parents, particularly fathers, ...
Psychology & Psychiatry
Aug 22, 2012 |
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Cigarette smoke damages DNA in reproductive cells of fathers, these changes inherited by offspring
When shopping for dad's Father's Day gift, consider what he gave you when you were conceived. If he smoked, your genes are likely damaged, and your odds for diseases increased. A report in the FASEB Journal shows that men wh ...
Medical research
Jun 22, 2012 |
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Sperm crawl and collide on way to egg, researchers say
Scientists at the Universities of Birmingham and Warwick have shed new light on how sperm navigate the female reproductive tract, 'crawling' along the channel walls and swimming around corners; with frequent collisions.
Medical research
May 07, 2012 |
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Gene involved in sperm-to-egg binding is key to fertility in mammals
Experts from Durham University have identified a new gene that could help the development of fertility treatments in humans in the future.
Medical research
May 01, 2012 |
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Mitochondrial respiratory capacity, sperm motility linked
(HealthDay) -- Sperm with higher motility have increased mitochondrial respiratory capacity, according to a study published in the April issue of Urology.
Other
Apr 10, 2012 |
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Research points to new way of preserving fertility for boys undergoing cancer treatment
(Medical Xpress) -- Treatments for childhood cancers are increasingly successful with cure rates approaching 80%, but success often comes with a downside for the surviving men: the cancer treatments they received ...
Medical research
Mar 26, 2012 |
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Spermatozoon
A sperm, from the ancient Greek word σπέρμα (seed) and ζῷον (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote is a single cell, with a complete set of chromosomes, that normally develops into an embryo.
Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring (the ovum always provides an X chromosome). Sperm cells were first observed by Anton van Leeuwenhoek in 1677.
For more information about Spermatozoon, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
