Semen News and Research

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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.

Obesity can cause fertility problems in men

According to new research obese men have lower volumes of seminal fluid and a higher proportion of abnormal sperm.

10 Jul 2008

Diabetes effects sperm quality

Diabetes in men has a direct effect on fertility, a scientist told the 24th annual conference of the European Society of Human Reproduction and Embryology today (Wednesday 9 July).

9 Jul 2008

Obese men have less seminal fluid and more abnormal sperm

Obese men should consider losing weight if they want to have children, a scientist told the 24th annual conference of the European Society of Human Reproduction and Embryology today (Wednesday 9 July).

9 Jul 2008

After 35 reproductive clock ticks for men too

A new study by researchers in France has revealed that after the age of 35 men too experience a loss of fertility.

7 Jul 2008

Pregnancy rates decrease and miscarriages increase when a father is over 35

Pregnancy rates decrease and miscarriages increase when a father is over 35 years of age, a scientist will tell the 24th annual conference of the European Society of Human Reproduction and Embryology (Monday 7 July). Dr. Stephanie Belloc, of the Eylau Centre for Assisted Reproduction, Paris, France, will say that this is the first time that such a strong paternal effect on reproductive outcomes has been shown.

6 Jul 2008

Warning about lack of attention given to hepatitis

A report by the World Hepatitis Alliance has called for an increased focus on hepatitis and says the disease should be given the same attention as AIDS, tuberculosis and malaria.

20 May 2008

Sperm "on the rocks" - Using semen cryopreservation to protect amphibian species

A current research project funded by the Austrian Science Fund FWF is working to optimise the cryopreservation of amphibian sperm.

21 Apr 2008

Low levels of dietary folate linked to sperm abnormalities

Healthy men who report lower levels of the nutrient folate in their diets have higher rates of chromosomal abnormalities in their sperm, according to a new study by researchers at the University of California, Berkeley, and the Lawrence Berkeley National Laboratory.

20 Mar 2008

Home test kit confirms men's post-vasectomy sterility

Technology developed at the University of Virginia could soon have a dramatic impact on male contraception practices throughout the U.S. Earlier this year, the U.S. Food and Drug Administration approved SpermCheck Vasectomy, a home test that confirms men's post-vasectomy sterility and is based on discoveries made at U.Va.

12 Mar 2008

Revelation of new genes linked to prostate cancer could single out high risk men

The discovery by researchers of at least ten new genes associated with prostate cancer could in future be used to accurately identify high-risk men.

11 Feb 2008

Prostatitis - one of the most common urologic diseases in the U.S

Estimates on the number of males in the United States who will experience prostatitis during their lifetimes range up to 50 percent.

21 Jan 2008

Ingredient found in human semen enhances HIV infection

A plentiful ingredient found in human semen drastically enhances the ability of the human immunodeficiency virus (HIV) to cause infection, according to a report in the December 14, 2007, issue of the journal Cell, a publication of Cell Press.

14 Dec 2007

Male infertility - epigenetics may be the underlying cause

Researchers at the University of Southern California (USC) suggest epigenetics, or the way DNA is processed and expressed, may be the underlying cause for male infertility.

13 Dec 2007

Likelihood of falling pregnant steadily decreases the fatter a woman is

A new study of obesity and the probability of pregnancy has shown that a woman's chances of a spontaneous pregnancy steadily decrease the fatter she is.

13 Dec 2007

Do rural and non-rural single, young adults differ in their risk and protective HIV/STD behaviors?

Single young adults living in rural areas are no more inclined to engage in safe sex behaviors than their non-rural peers, according to a new analysis by Indiana University sexual health experts of a nationally representative survey.

27 Nov 2007

Debate rumbles on over how often PSA tests should be done

The latest research has done little to settle the debate over the effectiveness of frequent screening for prostate cancer.

29 Aug 2007

Academic comments on horse flu scare

We should not be shocked that equine influenza has emerged in Australia. What is surprising is that we kept it out for so long. The Australian thoroughbred breeding and racing industry has received huge financial benefits from globalisation, but this process carries enormous risks. Foremost is the risk of disease.

28 Aug 2007