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.

Endocrine-disrupting chemicals pose threat to male reproductive health

The birth rate is declining in all industrialised countries, and socioeconomic factors and women's age are not solely to blame. Male reproductive health and environmental factors are also significant, as concluded in a new scientific review article.

11 Dec 2015

Environmental and lifestyle factors damage men's reproductive health

Environmental and lifestyle factors are damaging men's reproductive health and may be playing a large role in decreasing fertility rates in industrialized countries, a new study in Physiological Reviews reports. Socioeconomic influences and female reproductive health cannot solely be blamed for higher incidences of infertility, the study supports.

10 Dec 2015

Study provides insight into the structure of dark proteome

Proteins are often referred to as the building blocks of life, and make up about 15 per cent of the mass of the average person, performing a wide variety of essential functions in the body.

19 Nov 2015

New paper device could rapidly and inexpensively assess hepatitis B, male infertility

Scientists have developed a new paper device that analyzes DNA and could rapidly and inexpensively assess disparate conditions including hepatitis B and male infertility, which together affect millions of people around the world. The test, reported in the Journal of the American Chemical Society, could be of particular help diagnosing people in low-income areas.

29 Oct 2015

Genomic analysis confirms sexual transmission of Ebola virus in Liberia

A suspected case of sexual transmission of Ebola virus disease (EVD) in Liberia was confirmed using genomic analysis, thanks to in-country laboratory capabilities established by U.S. Army scientists in collaboration with the Liberian Institute for Biomedical Research (LIBR).

16 Oct 2015

Traces of Ebola can linger in semen for nine months

Fragments of the Ebola virus can persist in the semen of survivors for as long as nine months after symptoms first develop, according to a study published in the New England Journal of Medicine.

15 Oct 2015

Ebola virus can linger in semen of some men nine months after onset of symptoms

Preliminary results of a study into persistence of Ebola virus in body fluids show that some men still produce semen samples that test positive for Ebola virus nine months after onset of symptoms.

15 Oct 2015

Men with higher exposure to phthalate have lower sperm motility

Men with higher exposure to the substance DEHP, a so-called phthalate, have lower sperm motility and may therefore experience more difficulties conceiving children, according to a Lund University study.

24 Sep 2015

Vaginal silicone ring may protect women against HIV, herpes virus

Researchers at University Jean Monnet of Saint-Etienne, France have succeeded in developing a vaginal silicone ring that delivers molecules that act on both HIV and herpes virus. This research is presented at the 55th Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC/ICC).

21 Sep 2015

NEI experts explore long-term effects of Ebola on the eye

Following the 2014 Ebola outbreak in West Africa that took the lives of more than 11,200 people in the region, the National Eye Institute, part of the National Institutes of Health, has deployed a team of clinicians and technical experts to Monrovia, Liberia to investigate the long-term effects of Ebola on the eye.

9 Sep 2015

Reducing amyloid fibril levels in semen may help reduce transmission of HIV

There may be two new ways to fight AIDS -- using a heat shock protein or a small molecule - to attack fibrils in semen associated with the human immunodeficiency virus (HIV) during the initial phases of infection, according to new research from the Perelman School of Medicine at the University of Pennsylvania.

18 Aug 2015

Molecular tweezer blocks HIV, breaks up proteins in semen that boost infection

An unprecedented potential "molecular tweezer" called CLR01, reported in the journal eLife, not only blocks HIV and other sexually transmitted viruses, but also breaks up proteins in semen that boost infection.

18 Aug 2015

Novartis announces FDA approval of Odomzo (sonidegib) 200 mg capsules for treatment of laBCC patients

Novartis today announced the US Food and Drug Administration has approved Odomzo (sonidegib, formerly LDE225) 200 mg capsules for the treatment of adult patients with locally advanced basal cell carcinoma (laBCC) that has recurred following surgery or radiation therapy, or those who are not candidates for surgery or radiation therapy.

25 Jul 2015

MES announces worldwide release of new automated sperm quality analyzer

Medical Electronic Systems today announced the worldwide release of the SQA-Vision, the company's new automated sperm quality analyzer. The SQA-Vision was developed based on 10 years of market feedback and is positioned to augment the company's line of SQA-V and QwikCheck semen analyzers with a top of the line solution.

17 Jul 2015

Researchers develop sperm RNA diagnostic test to help determine best infertility treatment for couples

A Wayne State University School of Medicine professor, in collaboration with researchers at CReAte Fertility Center, University of Toronto, Harvard University and Georgia Reagents University, has developed the first diagnostic test for sperm RNA based on next-generation sequencing. For couples with unexplained infertility, the test may help determine the best infertility treatment for couples having difficulty conceiving.

12 Jul 2015

New study launched in Liberia to better understand health consequences of Ebola virus disease

The Liberia-U.S. clinical research partnership known as PREVAIL has launched a study of people in Liberia who have survived Ebola virus disease (EVD) within the past two years. The study investigators hope to better understand the long-term health consequences of EVD, determine if survivors develop immunity that will protect them from future Ebola infection, and assess whether previously EVD-infected individuals can transmit infection to close contacts and sexual partners.

18 Jun 2015

$Study analyses advantages of using fractions of ejaculate in IVF$

Study analyses advantages of using fractions of ejaculate in IVF

Sperm in the first fraction of ejaculate are more numerous, move more and present better quality DNA than those lagging behind. This is the conclusion of a study led by the Ginemed fertility clinic, which confirms that while the objective of the first fraction is to fertilise the egg, the second phase is so that no sperm from any other male has a chance to fertilise it.

27 May 2015

Cryoport net revenues increase 44% to $1.2 million in fourth quarter 2015

Cryoport, Inc. today announced financial results for the three and twelve-month periods ended March 31, 2015.

19 May 2015

Study shows that periodontal treatment can reduce symptoms of prostatitis

Treating gum disease reduced symptoms of prostate inflammation, called prostatitis, report researchers from Case Western Reserve University School of Dental Medicine and the Departments of Urology and Pathology at University Hospitals Case Medical Center.

6 May 2015

High levels of pesticide residues in fruits, vegetables can affect semen quality

Men who ate fruits and vegetables with higher levels of pesticide residues—such as strawberries, spinach, and peppers—had lower sperm count and a lower percentage of normal sperm than those who ate produce with lower residue levels, according to a new study by researchers at Harvard T.H. Chan School of Public Health.

1 Apr 2015