Semen News and Research

RSS

Semen is an organic fluid, also known as seminal fluid, that usually contains spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphroditic animals and can fertilize female ova. The process of discharge is called ejaculation.

California Sen. Carole Migden introduces bill to allow HIV-positive men to use reproductive services

California Sen. Carole Migden (D) recently introduced a bill (SB 443) that would allow HIV-positive men to use reproductive services, including artificial insemination and in vitro fertilization, under certain guidelines, the MediaNews/San Jose Mercury News reports.

8 Mar 2007

Vasectomy and trouble with words

Northwestern University researchers have discovered men with an unusual form of dementia have a higher rate of vasectomy than men the same age who are cognitively normal.

13 Feb 2007

Sniff of male sweat kick starts female hormones

According to a new study all a healthy heterosexual woman needs to give their hormone levels a kick start is the smell of a man's sweat.

8 Feb 2007

Men with increased body mass index significantly more likely to be infertile

Men with increased body mass index (BMI) were significantly more likely to be infertile than normal-weight men, according to research conducted at the National Institute of Environmental Health Sciences (NIEHS).

4 Sep 2006

Men with increased body mass index significantly more likely to be infertile

31 Aug 2006

Researchers have found that increasing paternal age is significantly associated with increased rates of spontaneous abortion

Results indicate that as the male partner ages there is a steady increase in rate of miscarriage.

3 Aug 2006

New highly successful method of freezing human eggs

A new and highly successful method of freezing human eggs will help to even out the current inequality between men and women.

19 Jun 2006

Study links high levels of nitric oxide to infertility and sperm DNA damage

Iranian scientists have linked a chemical that plays an essential role in many bodily functions to sperm DNA damage and male infertility, the 22nd annual conference of the European Society of Human Reproduction heard.

19 Jun 2006

Antegrade scrotal sclerotherapy for treating primary varicocele in children

This study by Zaupa et al evaluated the effectiveness and limitations of antegrade sclerotherapy (AS) for the treatment of primary varicocele in childhood.

19 Jun 2006

Men have a biological clock too and produce poor quality sperm as they age

Researchers in the U.S. say that even though men are able to father children well into old age, the quality of the sperm declines as men age.

6 Jun 2006

New male contraceptive

Men and women have long been promised a male version of the female contraceptive pill. But the first new male contraceptive to market may not be hormonal at all.

8 May 2006

Many men who have vasectomies do not return for follow up tests

A quarter of the men who had vasectomies at a U.S. clinic didn't return for any follow up tests to make sure that the procedure had worked, according to research published in the April issue of the British - based urology journal BJU International.

4 Apr 2006

Sperm banking should be a routine part of treatment for teenage cancer patients

Teenage boys being treated for cancer should be encouraged to bank their sperm so they might enjoy a family life in the future, say researchers at the University of Manchester.

From The University of Manchester 1 Mar 2006

Keep on trying - when you do get pregnant the chances are it will be a boy!

A team of Dutch researchers at Maastricht University say that women who take longer to get pregnant are more likely to give birth to a boy.

19 Dec 2005

Bacterial DNA and IVF contamination risk on New Scientist

Some children conceived by a common method of IVF could be carrying chunks of bacterial DNA in their chromosomes, according to a study in mice. The researchers who conducted the work say that such accidental genetic modification would be very rare, but they argue that fertility doctors should take more precautions to exclude it.

30 Nov 2005

Number of men interested in donating sperm has declined significantly

A study by a leading UK fertility centre has found that the numbers of men - especially students - coming forward as potential sperm donors fell sharply after 2000, almost certainly due to growing awareness that changes in the law would be removing the right to anonymity.

13 Nov 2005

Testicular cancer survivors can still have children

The overall rate of fatherhood after treatment for testicular cancer is high, but the ability to conceive and the time to conception are influenced by the type and intensity of treatment, according to a new study in the November 2 issue of the Journal of the National Cancer Institute.

3 Nov 2005