infertility

Obese Teen Boys Have Up to 50 Percent Less Testosterone than Lean Boys
10/16/2012 - 14:03

A study by the University at Buffalo shows for the first time that obese males ages 14 to 20 have up to 50 percent less total testosterone than do normal males of the same age, significantly increasing their potential to be impotent and infertile as adults.

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A new method for picking the ‘right’ egg in IVF
06/01/2012 - 11:55

In a groundbreaking study, Yale School of Medicine researchers and colleagues at the University of Oxford have identified the chromosomal make-up of a human egg. This discovery may soon allow them to avoid using abnormal — or aneuploid — eggs during infertility treatments, and instead to pick eggs that are healthy enough for a successful in vitro fertilization (IVF) cycle.

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Study identifies gene associated with male infertility
05/01/2012 - 09:30

Fifteen of every 100 couples in the world who want to have children find it difficult or impossible to conceive. In about half those couples, the male partner is infertile. Now researchers at the University of North Carolina at Chapel Hill Nutrition Research Institute in Kannapolis have found a possible genetic cause for some cases of male infertility.

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Gene mutation discovery sparks hope for effective endometriosis screening
02/06/2012 - 23:34

Researchers at Yale School of Medicine have, for the first time, described the genetic basis of endometriosis, a condition affecting millions of women that is marked by chronic pelvic pain and infertility. The researchers’ discovery of a new gene mutation provides hope for new screening methods.

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Animal Study Finds Surprising Clues to Obesity-Induced Infertility
11/27/2011 - 12:50

Infertility is common among obese women, but the reasons remain poorly understood and few treatments exist. Now a team of Johns Hopkins Children’s Center scientists, conducting experiments in mice, has uncovered what they consider surprising evidence that insulin resistance, long considered a prime suspect, has little to do with infertility in women with type-2 diabetes, polycystic ovary syndrome (PCOS) and metabolic syndrome, all obesity-related conditions in which the body becomes desensitized to insulin and loses the ability to regulate blood sugar. 

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Sperm Discoveries Shed Light on Infertility and Birth Control
10/12/2011 - 10:35

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 estimate that male infertility — and sperm — figure into the equation for about half of couples who fail to conceive despite trying for a year or more.

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