News tagged with sperm cells
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 |
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 |
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 |
(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 |
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 |
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 |
Imagine a contraceptive that could, with one or two painless 15-minute non-surgical treatments, provide months of protection from pregnancy. And imagine that the equipment needed were already in physical therapists' ...
Other Jan 30, 2012 | 5 / 5 (2) | 0
Who knew that male fertility depends on sperm-cell architecture? A University of Illinois study reports that a certain omega-3 fatty acid is necessary to construct the arch that turns a round, immature sperm cell into a pointy-headed ...
Health Jan 09, 2012 | 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
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 |
Performance anxiety? Not for this human sperm.
Medical research Dec 29, 2011 | 4.5 / 5 (2) | 2
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
(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 |
According to a 2003 study by German and American scientists, a component of the Lily of the Valley scent known as Bourgeonal alters the calcium balance of human sperm and attracts the sperm. The "Lily of the Valley phenomenon" ...
Medical research Feb 28, 2012 | 5 / 5 (2) | 0 |
(Medical Xpress) -- For a sperm cell, a lot has to go right before it can fertilize an egg. And despite biblical stories of barren women and cultural traditions of blaming the female, fertility experts now ...
Medical research Oct 12, 2011 | 5 / 5 (1) | 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
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