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.

Novel infertility mechanism suggested in men with metabolic syndrome

Men diagnosed with the metabolic syndrome appear to have reduced fertility potential despite the absence of leucocytospermia, report researchers.

21 Jan 2013

Study finds decline in spermatozoid concentration in young Spanish men

The first comparative study on the evolution of sperm quality in young Spanish men over ten years, headed by researchers at the University of Murcia, reveals that spermatozoid concentration in men between 18 and 23 years in the regions of Murcia and Almeria has dropped by an annual average of 2%.

19 Jan 2013

Coenzyme Q10 supplement may boost male fertility

Taking a 3-month course of coenzyme Q10 supplements could improve semen quality among infertile men, show researchers.

16 Jan 2013

Smoking and drinking have no impact on male fertility

Alcohol drinking and smoking seem to have no significant impact on male fertility, report researchers.

19 Dec 2012

Celgene announces results from REVLIMID plus VIDAZA phase II study on AML

Celgene International Sàrl today announced that results from a study evaluating the combination of REVLIMID (lenalidomide) plus VIDAZA (azacitidine) in patients 60 years or older with untreated acute myeloid leukemia (AML) were presented at the American Society of Hematology annual meeting in Atlanta, GA.

11 Dec 2012

New research finds bisphenol A in fetal liver tissues

New research from the University of Michigan School of Public Health found BPA, or bisphenol A, in fetal liver tissue, demonstrating that there is considerable exposure to the chemical during pregnancy.

4 Dec 2012

Janssen receives positive opinion from EMA CHMP for ZYTIGA to treat mCRPC

Janssen-Cilag International NV (Janssen) announced today that the Committee for Medical Products for Human Use (CHMP) of the European Medicines Agency (EMA) has granted a positive opinion recommending approval of the oral, once-daily medication ZYTIGA for use in combination with prednisone or prednisolone in the treatment of metastatic castration-resistant prostate cancer (mCRPC), in adult men who are asymptomatic or mildly symptomatic after failure of androgen deprivation therapy and in whom chemotherapy is not yet clinically indicated.

19 Nov 2012

Men with wider variation in sperm length have fertility problems

Perhaps variety is the very spice of life, but as a matter of producing human life, it could be the bane of existence. That's the indication of a new study in the journal Human Reproduction that found men with wider variation in sperm length, particularly in the flagellum, had lower concentrations of sperm that could swim well. Those with more consistently made sperm seemed to have more capable ones.

14 Nov 2012

Antioxidant imbalance in abnormal sperm

An imbalance exists in oxidative stress markers, such as reactive nitrogen species, reactive oxygen species, and total antioxidant capacity, in infertile men with abnormal semen parameters, report researchers.

13 Nov 2012

Sperm viability assessed in a number of UK fertility laboratories by using Linkam’s warm stages

With precise temperature control, Linkam warm stages are vital for sperm motility testing, supporting fertility evaluations in clinical and research settings.

From Linkam Scientific Instruments 7 Nov 2012

Physically active men produce better semen quality

A new study conducted by researchers at the University of Cordoba links moderate physical activity in males with better hormone levels and sperm characteristics that favour reproduction compared to sedentary men.

1 Nov 2012

Male infertility linked to an enzyme complex issue

An enzyme complex present in sperm plasma membranes plays an important role in the overproduction of reactive oxygen species and oxidative stress in sperm with abnormal morphology, researchers have shown.

15 Oct 2012

Male BMI effects embryo quality, IVF outcome

Male body mass index influences pregnancy outcome in couples undergoing in vitro fertilization through its effect on embryo quality rather than on sperm parameters, report researchers.

24 Sep 2012

Semen protein acts on the female brain to prompt ovulation

An international team of scientists led by Gregg Adams at the University of Saskatchewan has discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells.

21 Aug 2012

Walnuts provide key nutrients that may be essential in male reproductive health

Research published in the recent issue of Biology of Reproduction Papers-in-Press reports that 75 grams (approximately 2.5 ounces) of walnuts consumed per day improved sperm vitality, motility, and morphology (normal forms) in a group of healthy young men between 21-35 years of age.

17 Aug 2012

Smoking is bad for your sperm

In men with varicocele, smoking alters semen quality and sperm function as well as inducing seminal oxidative stress, report researchers.

13 Aug 2012

AIDS medical textbook designed specifically for patients and doctors in resource-poor regions

Warner C. Greene, MD, who directs virology and immunology research at the Gladstone Institutes, has joined with other global AIDS experts to release a locally affordable version of the world's leading AIDS medical textbook. Designed specifically for regions that today are hardest hit by the disease, this new text is the latest weapon in a growing arsenal aimed at curbing the spread of HIV/AIDS worldwide.

24 Jul 2012

Arsenic exposure impairs semen quality

Environmental exposure to arsenic significantly reduces semen quality in Chinese men, research shows.

18 Jul 2012

Smoking of fathers before conception can damage genetic information of their offspring

As you decide what to get dad for Father's Day, you might want to consider what he gave you when you were conceived. If he smoked, your genes are likely damaged, and your odds for cancers and other diseases throughout your life could be increased. A new research report appearing online in the FASEB Journal, scientists show for the first time in humans that men who smoke before conception can damage the genetic information of their offspring.

23 Jun 2012

Breakthrough in understanding the causes of unexplained male infertility

The diagnosis of male fertility is usually performed through the observation of the sperm in the microscope. However, a normal quality semen does not guarantee an adequate fertility. In fact, there is a considerable proportion of cases of unexplained infertility and data suggest that abnormal sperm function may have a genetic or molecular origin.

24 May 2012