Sperm Whales Current Events | Sperm Whales News | 6
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How sperm crack the whip
Researchers have identified a key component of the mechanism spermatozoa use to abruptly convert their tail motion from a steady swimming undulation to the whip-cracking snap that thrusts them into an egg. view more (2006-02-09)
Sperm stem cells closer to being like embryonic stem cells
New experiments that prevented rat sperm stem cells from changing permanently into sperm have brought researchers one step closer to coaxing such cells to behave like embryonic stem cells, capable of growing into many other types of cells in the body. view more (2005-11-16)
Researchers learn more about genetic mutation linked to autism
University of Iowa researchers have learned more about a genetic mutation that contributes to autism. The mutation occurred in sperm cells of a father, who does not have autism, but passed the condition on to two of his children. view more (2007-05-04)
Fish Blood Preserves Sperm
In the Arctic and Antarctic seas the water gets cold to minus 1.9 C in winter, but somehow some fish live there. These cold-blooded creatures survive in the icy water because the blood in their veins contains antifreeze proteins and glycoproteins. High levels of the antifreeze proteins are found in the blood serum, they are present in cell... view more... (2002-06-04)
EU research suggests that PCBs damage sperm - but finds no dramatic effect on male fertility
Research by an EU-supported international team of scientists has shown that polychlorinated biphenyls (PCBs)[1]-synthetic organic chemicals found widely in the environment and absorbed in the diet - may damage sperm. view more (2005-10-13)
Soy foods are associated with lower sperm concentrations
Men who eat an average of half a serving of soy food a day have lower concentrations of sperm than men who do not eat soy foods, according to research published online in Europe's leading reproductive medicine journal, Human Reproduction, today (Thursday 24 July). The association was particularly marked in men who were overweight or obese, the... view more... (2008-07-24)
Hormone Linked To Obesity Plays Positive Role In Fertility & Possibly Also Male Arousal
Researchers in the University of Warwick's Department of Biological Sciences have found that a hormone associated with obesity is actually also very active in the male genitals where it plays a key role in male fertility and may even influence the erection response in male sexual arousal. The research, published today (Tuesday 6th April 2004) in... view more... (2004-04-06)
Warbling Whales Speak a Language All Their Own
The songs of the humpback whale are among the most complex in the animal kingdom. Researchers have now mathematically confirmed that whales have their own syntax that uses sound units to build phrases that can be combined to form songs that last for hours. view more (2006-03-22)
Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory
Scientists in the UK have proved that human embryonic stem cells can develop in the laboratory into the early forms of cells that eventually become eggs or sperm. view more (2005-06-20)
Study Identifies Genetic Fingerprint Of Healthy Sperm
The genetic fingerprinting of sperm cells-detailed in this week's issue of THE LANCET-could be a major step forward in our understanding of male infertility. Around one in six couples experience difficulty in conceiving a child, and male fertility problems account for half of assisted reproductive techniques. However, the underlying cause of... view more... (2002-09-04)
Just Look At Spermatozoid Critically
In vitro fertilisation is one of the methods for overcoming infertility. This procedure is rather complicated and expensive. That is why the patients want to be sure about the successful result in advance. The investigations carried out at the Ott Research Institute of Obstetrics and Gynaecology, Russian Academy of Medical Sciences, and St.... view more... (2001-09-21)
New microfluidic devices found to be effective method of in-vitro fertilization in mice
Technology that more closely mirrors the natural fertilization process is showing promise as a new method of in-vitro fertilization, researchers at the University of Michigan Health System have found. view more (2005-10-13)
Northern Right Whales Head South to Give Birth, Leave Genetic "Fingerprints" with NOAA Researchers
Like many northerners who head south to warmer climates for the winter, many Northern right whales also head south in November and stay into April. view more (2008-03-04)
Sperm banking before treatment preserves fertility in young male cancer patients
A recent study at Hamilton Health Sciences proves that sperm freezing and banking is an effective way to preserve fertility in adolescents and young adult (AYA) males with cancer. view more (2007-07-23)
Mutant sperm guide clinicians to new diseases
Research published today in Nature Genetics shows that some rearrangements of the human genome occur more frequently than previously thought. view more (2007-12-03)
Couples with fertility problems where the man is over 35 have increased difficulty in conceiving
Pregnancy rates decrease and miscarriages increase when a father is over 35 years of age, a scientist will tell the 24th annual conference of the European Society of Human Reproduction and Embryology. view more (2008-07-07)
Maternal beef diet could impact sperm counts, UR study suggests
A mother's high beef consumption while pregnant was associated with lower sperm counts in her son, according to a study led by researchers at the University of Rochester. view more (2007-03-28)
Contraception: progress brings hope for new methods for men
For decades, pundits have predicted new contraceptives for men within the next 5 to 10 years. Are we really getting any closer? Judging from work presented today at the second "Future of Male Contraception" conference, the answer may finally be yes. view more (2007-09-28)
Diabetes linked to male infertility; excess sugars in the body have direct effect on sperm quality
Diabetes in men has a direct effect on fertility, a scientist told the 24th annual conference of the European Society of Human Reproduction and Embryology today. view more (2008-07-09)
Whale-sized genetic study largest ever for southern hemisphere humpbacks
After 15 years of research in the waters of the South Atlantic and Indian Oceans, scientists from the Wildlife Conservation Society, the American Museum of Natural History, and an international coalition of organizations have unveiled the largest genetic study of humpback whale populations ever conducted in the Southern Hemisphere. view more (2009-10-14)
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