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.

Men being treated with alpha-blockers for an enlarged prostate may not have to endure sexual dysfunction

Research conducted by Hellstrom comparing the impact of two commonly prescribed medications on men's ability to ejaculate was presented today at the 100th annual meeting of the American Urological Association May 23.

23 May 2005

Little evidence found for IVF as most effective infertility treatment

In vitro fertilization can improve pregnancy rates among couples with unexplained infertility, but there is little evidence to show whether IVF results in more live births than other treatments, according to a new review of recent studies.

1 May 2005

Pollutants appear to have an affect on sex chromosome

A team of researchers from Lund University in Sweden have found that exposure to a class of environmental pollutants can change the ratio of sperm carrying male and female chromosomes.

1 May 2005

HIV virus removed from fathers sperm

27 babies in Japan have been born virus-free after the virus was removed from the the sperm of HIV-positive fathers.

7 Mar 2005

Way to detect early signs of testicular cancer

Danish researchers have discovered a way to detect early signs of testicular cancer before it has started to spread. Their findings are the first step towards developing a simple screening test for men at risk of the disease.

2 Mar 2005

Animal model helps explain how AIDS virus spreads throughout the body following oral exposure

Researchers at UT Southwestern Medical Center at Dallas have utilized an animal model to trace how the virus that causes AIDS in humans may enter and spread throughout the body following an oral exposure.

3 Dec 2004

Sexual competition among males is evident at the molecular level, as well as at behavioral and physiological levels

In what could be termed a truly seminal discovery, researchers have shown that when females are more promiscuous, males have to work harder -- at the genetic level, that is. More specifically, they determined that a protein controlling semen viscosity evolves more rapidly in primate species with promiscuous females than in monogamous species.

8 Nov 2004

Sperm cells grown in laboratory culture

A team of researchers working with cells from mice has overcome a technical barrier and succeeded in growing sperm progenitor cells in laboratory culture.

4 Nov 2004

Prostate cancer treatment leads to declines in sexual and urinary function

Treatment for prostate cancer leads to significant five-year declines in sexual and urinary function, according to a new study. However, general and other specific health-related quality of life factors, such as bowel function, are not affected.

27 Sep 2004

A more direct lateral approach to minimally invasive procedures

Surgeons at the Cedars-Sinai Institute for Spinal Disorders describe in the August 1 issue of the journal Spine a minimally invasive approach that enables them to perform fusion surgery on the difficult-to-access upper lumbar region of the spine with a reduced risk of serious complications.

2 Aug 2004

TUNA therapy results in significantly reduced erectile dysfunction

Comparing five-year results of Medtronic TUNA® Therapy (transurethral needle ablation) to surgery for 121 men in their mid-60s with lower urinary tract symptoms caused by an enlarged prostate, a team of urologists found that “for appropriately selected patients with bothersome voiding symptoms, TUNA is an attractive treatment option.”

1 Jul 2004

Women exposed in adulthood to cytomegalovirus may be at greater risk of breast cancer

A study just published in the prestigious British Journal of Cancer by researchers at the University of Otago's Christchurch School of Medicine and Health Sciences and Dunedin School of Medicine, and the University of Melbourne, has found evidence of a link between a common virus and breast cancer in women under the age of 40 years.

31 May 2004

Baby born from 21 year old cryopreserved sperm

"We believe this is the longest period of sperm cryopreservation resulting in a live birth so far reported in the scientific literature," according to one of the authors, Dr Elizabeth Pease, Consultant in Reproductive Medicine at the Department of Reproductive Medicine at St Mary's Hospital, Manchester.

25 May 2004

FDA finalizes new rule on donor eligibility for human tissues and cells

FDA today published a final rule establishing donor eligibility criteria for donors of human cells, tissues, and cellular and tissue-based products (HCT/Ps) to help prevent the transmission of communicable disease when these products are transplanted.

20 May 2004

Clinical trial of traditional Chinese medicine for the treatment of male infertility

Traditional Chinese Medicine (TCM) researcher Jann Mehmet knows the effectiveness of acupuncture and Chinese herbal medicine in treating male infertility. Now she is putting her observations to the test in a formal clinical trial of the benefits of TCM, the first time such a study has been conducted in Australia - or overseas.

18 May 2004