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Tag: "infertility" at biology news

How the environment could be damaging men's reproductive health

...between the ages of about 20 and 40, and of having infertility problems. Cryptorchidism is one of the symptoms of testicular dysgenesis syndrome (TDS) ?a collection of male reproductive disorders, possibly caused by errors in development of the foetal testes. The Lithuanian study investigated 1,204 boys born in...

First frozen egg baby born in Canada

... the McGill Reproductive Centre, had suffered from infertility for two years. Initially, she planned to undergo t...ing chemotherapy and radiotherapy, which can cause infertility and premature menopause," says Dr. Lucy Gilbert, Director of Gynecological Oncology at the MUHC. Ove...

Of mice and men's (and women's) contraceptives

...l protein found only in germ-line cells results in infertility in both males and females, according to a new stud...ut not many that will lead to both male and female infertility without affecting the somatic cells." Animals deficient in the protein ?called MSY2 ?are infertile,...

Scripps research scientists identify infertility molecule

...e of 35. Often, women will undergo treatments for infertility that range from taking hormones to stimulate ovula...wever, the molecular mechanisms that govern female infertility are not completely understood. In fact, the cause of infertility is not always easy to diagnose. The...

Scientists succeed in cloning human embryos from eggs matured in the lab

...final goal is to use human therapeutic cloning for infertility treatment by creating artificial eggs and sperm for patients who are infertile because of absence or premature loss of eggs or sperm. We would do this by isolating embryonic stem cell lines from cloned early embryos and driving these embryonic stem c...

Invitrogen Launches i-Path -- A Unique Systems Biology Platform at BIO 2005

...final goal is to use human therapeutic cloning for infertility treatment by creating artificial eggs and sperm for patients who are infertile because of absence or premature loss of eggs or sperm. We would do this by isolating embryonic stem cell lines from cloned early embryos and driving these embryonic stem c...

Environmental chemical cocktail may sabotage sperm

...time when there are concerns that the incidence of infertility may be rising, this research flags up important warning signs. Very little is currently known about the control of sperm function, especially in the body rather than in the laboratory, but the sensitivity of human sperm to these chemicals means that ...

Decisions, decisions: Male or female?

...The discovery promises to enhance understanding of infertility and even some forms of cancer and could eventually...efects in germ cell development that lead to human infertility and disease." ...

Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory

...pment is important for understanding the causes of infertility and the potential harmful effects of environmental... at this stage and cause congenital abnormalities, infertility and possibly cancer (in particular testicular cancer). By developing suitable tests with embryonic s...

New Discovery May Help Doctors Treat Infertility

...ve this receptor may benefit more from alternative infertility treatments. The findings are reported in Endocrino...ons conducted by the physician, will help diagnose infertility and better determine treatment options. “Dealing with infertility can be emotionally, financially, ...

A surprising pair of proteins help make healthy eggs

...nd it points to possible drug targets for treating infertility and ovarian cancer. "Thousands of women in this country undergo fertility treatments each year and some have no idea why they can't get pregnant," said Richard Freiman, an assistant professor in the Department of Molecular Biology, Cell Biology and ...

Fertility drugs given 'all-clear' in new study

...ne citrate ?the low-risk, first-line treatment for infertility for more than 40 years. "We found no statisticall...t letrozole can indeed be used in the treatment of infertility without increasing risk to the fetus." The study contradicts an earlier, much smaller study linking...

Protein translation in sperm

...give us better understanding for treatment of male infertility and developing new male or female contraceptives." ...

New brain hormone puts brakes on reproduction

...e reproductive system to fix problems ranging from infertility to precocious puberty, and also provide animal breeders with a new way to manipulate the productivity of livestock. The findings by Kriegsfeld and colleagues are reported this week in the online early edition of Proceedings of the National Academy o...

How sperm crack the whip

...d help scientists both recognize new forms of male infertility and design new contraceptives to thwart sperm entry into the egg. What's more, they said, the exquisitely delicate analytical technique they used to eavesdrop on the electrical currents inside the squirming sperm cell could literally open a new wind...

Gene variation increases SIDS risk in African Americans

...lings of SIDS victims, and couples that experience infertility or fetal demise." ...

US woman gives birth to baby from world's first frozen donor egg bank

...gs which have not been frozen are commonly used in infertility therapy worldwide. In the US alone, in 2001, over ...ology, is the father of triplets and has practiced infertility for over 15 years in both the academic university setting as well as private practice. Jeffrey Boldt...

One big biology question solved

...ding is a breakthrough that could lead to improved infertility treatment, cancer therapy and pest management. The team, led by Dr Josephine Bowles and Professor Peter Koopman from the Institute for Molecular Bioscience at The University of Queensland, has discovered that derivatives of Vitamin A trigger the be...

Study finds how organs monitor themselves during early development

..." she says. A researcher studying the challenge of infertility in humans could apply this study to his or her own work, Dr. Gilboa explains. Studying a model organism like the fly with its short generation time and ease of handling allows us to address even complicated matters like the development of an organ in...

Sperm created in the laboratory from embryonic stem cells produce viable progeny

...one day facilitate nuclear transfer technology and infertility treatment," offers Dr. Nayernia. ...

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