Reviewed by Philip MelnikFeb 19 2019 Study reveals crucial developmental period for father’s ability to produce offspring From fathers to children, the delivery of hereditary information requires the careful packing of DNA in sperm. But just how nature packages this DNA to prepare offspring isn’t clear. Using new technology to reveal the 3D organization of […]Continue Reading ...
Feb 14 2019 Sperm that live for longer before fertilizing an egg produce healthier offspring – according to new research from the University of East Anglia and Uppsala University in Sweden. New research published today shows that longer-lived sperm in an ejaculate of a zebrafish male produce offspring with longer and healthier lifespans – who […]Continue Reading ...
A new study has found that slow-swimming sperm are disadvantaged by narrow areas of the female reproductive tract, preventing them from reaching an egg. medistock | Shutterstock Less active sperm may never have the chance to reach an egg due to obstacles within narrow areas of the female reproductive tract known as strictures. Strictures include […]Continue Reading ...
Scientists at the Imperial College in London have found that one of the reasons behind frequent miscarriages in a woman could be the fault of the sperms of their partners. Recurrent miscarriages are defined as three or more miscarriages that occur before 20 weeks of pregnancy are completed. One in 50 couples in the UK […]Continue Reading ...
A new study has revealed that cannabis or marijuana can alter the DNA or genetic make-up of the sperms and this can have long term consequences in the baby born of that sperm. The study results were published in the latest issue of the journal Epigenetics. Marijuana. Image Credit: ShutterstockProfessional / Shutterstock Researchers at the […]Continue Reading ...
These are the results of an analysis of 28 nutritional intervention studies involving 2,900 participants and headed by the Universitat Rovira i Virgili; these supplements may increase male fertility Infertility affects 15% of the world population and is recognized by the World Health Organisation as a global health problem. In recent years, studies of sperm […]Continue Reading ...
Researchers have found that a protein in the cell membranes of sperm plays a key role in how they find their way to eggs. The PMCA protein may also help explain how egg cells only interact with sperm from the same species. PMCA may even be a target of drug discovery. Sperm are excellent navigators. […]Continue Reading ...
As prospective parents increasingly seek sperm donors online, an international study has analyzed what sort of men are donating sperm in this informal setting as opposed to a traditional clinic. And it seems a key characteristic is they are more agreeable. The international Journal of Reproductive and Infant Psychology has just published the latest study […]Continue Reading ...
WEDNESDAY, Feb. 13, 2019 — In the race to conception, the female body is set up to separate weak sperm from strong, researchers report. A woman’s reproductive system presents a veritable obstacle course that stress-tests sperm, making sure that only the strongest swimmers have a chance of reaching a woman’s egg, according to a new […]Continue Reading ...
Hope has emerged for infertile men as scientists at Newcastle University have understood the importance of a gene in regulating the production of fully-functioning sperm. For the first time, experts have identified the role of gene, RBMXL2, which is very similar to a possible infertility gene found on the Y chromosome found only in men. […]Continue Reading ...
The early-stage study, from scientists at Imperial College London, investigated the sperm quality of 50 men whose partners had suffered three or more consecutive miscarriages. The research, published in the journal Clinical Chemistry, revealed that, compared to men whose partners had not experienced miscarriages, the sperm of those involved in the study had higher levels […]Continue Reading ...
A longer duration of infertility was associated with lower sperm count and other parameters of impaired sperm in a BJU International study of 1644 infertile men. Also, older age and higher body mass index were associated with a longer duration of infertility. Approximately 15 percent of couples of reproductive age fail to achieve a wanted […]Continue Reading ...
Studies have repeatedly linked maternal smoking during pregnancy with reduced sperm counts in male offspring. Now a research team at Lund University in Sweden has discovered that, independently of nicotine exposure from the mother, men whose fathers smoked at the time of pregnancy had half as many sperm as those with non-smoking fathers. The study […]Continue Reading ...
Climate change could pose a threat to male fertility – according to new research from the University of East Anglia. New findings published today in the journal Nature Communications reveal that heatwaves damage sperm in insects – with negative impacts for fertility across generations. The research team say that male infertility during heatwaves could help […]Continue Reading ...
A single protein regulates a battery of key genes inside developing sperm, according to a new study out of Case Western Reserve University School of Medicine. Scientists discovered the protein–called Dazl–controls a network of genes essential for developing sperm to replicate and survive. The findings, published in Cell Reports, could lay the groundwork for future […]Continue Reading ...
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