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Posts Tagged ‘Fertility’

New method for picking the ‘right’ egg in IVF

Friday, June 1st, 2012

Medical researchers 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.

New type of male contraceptive? Key gene essential for sperm development discovered

Thursday, May 24th, 2012

A new type of male contraceptive could be created thanks to the discovery of a key gene essential for sperm development. The finding could lead to alternatives to the conventional male contraceptives that rely on disrupting the production of hormones, such as testosterone. These treatments can cause side effects such as irritability, mood swings and acne.

Male fertility genes discovered

Thursday, May 24th, 2012

A new study has revealed previously undiscovered genetic variants that influence fertility in men. The findings shed much-needed light on human reproduction and might provide answers for countless men suffering from infertility.

Genetic markers to predict male fertility identified

Wednesday, May 23rd, 2012

Scientists have identified a gene expression fingerprint associated with very low pregnancy rates in semen donors with normal seminal quality.

Why women choose bad boys: Ovulating women perceive sexy cads as good dads

Monday, May 14th, 2012

Nice guys do finish last at least when it comes to procreation, according to a new study that answers the question of why women choose bad boys. New research has demonstrated that hormones associated with ovulation influence women’s perceptions of men as potential fathers.

Education, not abortion, reduces maternal mortality, study suggests

Thursday, May 10th, 2012

A study conducted in Chile has found that the most important factor in reducing maternal mortality is the educational level of women.

Mystery of the missing breast cancer genes

Tuesday, May 8th, 2012

Researchers are hoping to better understand why the mutated genes for breast and ovarian cancer are not passed on more frequently from one generation of women to the next.

Men can rest easy: Sex chromosomes are here to stay

Tuesday, May 8th, 2012

Fears that sex-linked chromosomes, such as the male Y chromosome, are doomed to extinction have been refuted in a new genetic study which examines the sex chromosomes of chickens.

Sperm crawl and collide on way to egg, say scientists

Monday, May 7th, 2012

Scientists have shed new light on how sperm navigate the female reproductive tract, “crawling” along the channel walls and swimming around corners — with frequent collisions.

Higher risk of birth defects from assisted reproduction, study suggests

Saturday, May 5th, 2012

A new study has identified the risk of major birth defects associated with different types of assisted reproductive technology. In the most comprehensive study of its kind in the world, researchers compared the risk of major birth defects for each of the reproductive therapies commonly available internationally, such as: IVF (in vitro fertilization), ICSI (intracytoplasmic sperm injection) and ovulation induction. They also compared the risk of birth defects after fresh and frozen embryo transfer.

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