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Can you hear me now? How the inner ear's sensors are made
A UCLA study shows for the first time how microscopic crystals form sound and gravity sensors inside the inner ear. Located at the ends of cilia - tiny cellular hairs in the ear that move and transmit signals - these crystals play an important role in detecting sound, maintaining balance and regulating movement. view more (2008-12-02)
Donor offspring feel different
People who are conceived through the use of donor sperm feel shocked and experience a threat to their identities when disclosure is made in adulthood. These are the findings of research presented today, Saturday 31 March, by Dr Amanda Turner, Chartered Psychotherapeutic and Counselling Psychologist of Invicta NHS Trust, at The British... view more... (2001-03-26)
Ethical Guidelines Presented for Swedish Stem Cell Research
In brief, the guidelines mean that researchers may take stem cells from embryos that can no longer be used for further IVF treatment. Moreover, the creation of embryos by somatic cell nuclear transfer (therapeutic cloning) to get access to stem cells is deemed to be ethically defensible. The reason for this is the prospect of major long-term... view more... (2001-12-04)
Preliminary Study Suggests Endomitriosis Could Contribute To Infertility
Authors of a research letter in this week's issue of THE LANCET provide preliminary evidence which suggests that the peritoneal fluid of women with endometriosis may play a significant role in reducing fertility. Endometriosis and infertility are known to be associated, but it is not known whether endometriosis causes infertility. Ovrang... view more... (2002-10-16)
Varicocele Treatment Does Not Improve Male Fertility
Authors of a systematic review in this week's issue of THE LANCET highlight how a common treatment for impaired male fertility may well be ineffective. Up to 15% of men are thought to suffer from varicoceles-dilation of veins in the scrotum-which sometimes leads to lower fertility because of decreased sperm quality and quantity arising from... view more... (2003-05-28)
Motion that powers sperm provides key to unravelling rare genetic disorder
Malfunction of the motor that powers sperm plays havoc with more than fertility: it may also be the root cause of the rare genetic disease Bardet-Biedl syndrome (BBS). Reporting in the journal Cell tomorrow, researchers from the UK, US and Canada reveal they have discovered a novel gene for BBS that's necessary for the generation of a cell's cilia... view more... (2004-05-12)
Smithsonian scientists working to save microscopic threatened species
The Smithsonian's National Zoo recently acquired 12,000 new animals-microscopic Elkhorn coral larvae harvested by National Zoo scientists in Puerto Rico-as part of an international collaborative program to raise the threatened species. view more (2007-09-27)
Teenage Boys Exposed To Environmental Pollutants Less Likely To Produce Male Children (p143)
A research letter in this week's issue of THE LANCET provides further evidence that adolescent boys exposed to organic pollutants are less likely to father a male child in adulthood. Investigators from the National Cheng Kung University Medical College, Taiwan, and the London School of Hygiene and Tropical Medicine, UK, studied the sex of over... view more... (2002-07-10)
GUMC Researchers Show Adult Human Testes Cells Can Become Embryonic Stem-like, Capable of Treating Disease
Using what they say is a relatively simple method, scientists at Georgetown University Medical Center have extracted stem/progenitor cells from adult testes and have converted them back into pluripotent embryonic-like stem cells. Researchers say that the naïve cells are now potentially capable of morphing into any cell type that a body needs, from... view more... (2009-03-24)
Research sheds light on cause of Down syndrome and other genetic disorders
Scientists have a better understanding of what causes an abnormal number of chromosomes in offspring, a condition called aneuploidy that encompasses the most common genetic disorders in humans, such as Down syndrome, and is a leading cause of pregnancy loss. view more (2009-07-20)
Physician-Scientists Seek Solutions to Reproductive Problems Related to Chromosomal Variations
Approximately one in every 500 to 650 baby boys is born with an extra X chromosome, a variation in their genetic code that until a few years ago was thought to result in infertility in all cases. view more (2007-12-20)
First frozen egg baby born in Canada
The McGill University Health Center (MUHC) in Montreal is pleased to announce the first successful birth in Canada resulting from frozen eggs. view more (2005-05-30)
Tool developed to silence genes in specific tissues using RNAi
Researchers at The University of Texas M. D. Anderson Cancer Center say they have jumped a significant hurdle in the use of RNA interference (RNAi), believed by many to be the ultimate tool to both decode the function of individual genes in the human genome and to treat disease. view more (2006-01-17)
European experts slam new Italian fertility proposals: "Disaster for women" says ESHRE chairman
Vienna, Austria: Fertility experts meeting in Vienna today (Saturday 29 June) attacked proposals by the Lower House of the Italian Parliament that could encourage multiple pregnancies. They have described the proposals as "unethical" and are seriously worried that they will put women and their babies at risk. Members of the Italian Lower... view more... (2002-06-29)
Penn Researchers Identify First Sex Chromosome Gene Involved in Meiosis and Male Infertility
A team of scientists led by University of Pennsylvania veterinary researchers have identified a gene, TEX11, located on the X chromosome, which when disrupted in mice renders the males sterile and reduces female fecundity. This is the first study of the genetic causes of infertility that links a particular sex chromosome meiosis-specific gene to... view more... (2008-03-17)
Italy now faces worldwide storm of protest over fertility proposals
Italian legislators now face worldwide condemnation by fertility experts for IVF proposals that could encourage multiple pregnancies and put babies at risk. The International Federation of Fertility Societies (IFFS) has added its voice to that of the European Society of Human Reproduction and Embryology, who have already described the proposals as... view more... (2002-07-03)
New study shows greenback cutthroat trout involved in recovery effort misidentified
A new study led by the University of Colorado at Boulder indicates biologists trying to save Colorado's native greenback cutthroat trout from extinction over the past several decades through hatchery propagation and restocking efforts have, in most cases, inadvertently restored the wrong fish. view more (2007-09-06)
Studies to find better ways to preserve human eggs, ovarian tissue under way
The goal is to make human eggs, ovarian tissue, blood vessels, even whole organs available when needed. view more (2007-06-07)
Origen publishes in Nature a robust and versatile method for creating transgenic chickens
Origen Therapeutics announced today that it has succeeded in developing a robust and versatile technology for genetically modifying chickens that, for the first time, puts avian transgenics on a par with transgenic mice. view more (2006-06-08)
New concepts in contraception
Latest research into dual-purpose contraceptives and non-hormonal contraception will be presented tomorrow at a major scientific conference in Melbourne. view more (2008-08-27)
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