News tagged with sperm cells
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 | not rated yet | 0
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 | 5 / 5 (1) | 0
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 | not rated yet | 0
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 | 5 / 5 (7) | 0 |
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 | not rated yet | 0 |
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 | not rated yet | 0 |
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 | 5 / 5 (1) | 1 |
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 | not rated yet | 0
(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 | 5 / 5 (1) | 0 |
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 | 5 / 5 (1) | 0 |
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 | 5 / 5 (2) | 0 |
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 | 4.8 / 5 (5) | 1 |
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 | 5 / 5 (1) | 0 |
(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 | not rated yet | 0
(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 | not rated yet | 0 |
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
This text uses material from Wikipedia and is available under the GNU Free Documentation License.