Navigation Links
SEMEN – More than just a sperm carrie

Semen may have more functions in reproduction than merely being a carrier of sperms. A researcher from America reports that the semen from fertile men contains a multitude of hormones//. Some of them like, FSH (Follicle Stimulating Hormone) initiates ovulation. Some other hormones are reported to have a role in the maintenance of pregnancy.

The researcher, Rebecca Burch, thinks human males have evolved the concoction as a counter-strategy to concealed ovulation in women. Although there are subtle chemical cues that a woman is ovulating, there are no overt signs. So at any given copulation, a male wanting to reproduce could be wasting his time. Semen that could help induce ovulation while his sperm are in her reproductive tract would be a great advantage, she says, as would compounds that could bolster a new conception and help the fertilised egg implant.

If this was an evolved strategy, Burch reasoned, species where ovulation is not concealed would not need it. To test her theory, she asked colleagues at Yerkes National Primate Research Center in Atlanta, Georgia, to test the semen of six chimpanzees. Unlike humans, chimp females advertise their fertility with bright red swollen behinds.

Sure enough, compared to humans, the semen of chimp males had significantly lower levels of FSH and no luteinising hormone whatsoever. Burch presented her results earlier this week at the meeting of the International Society for Human Ethology in Detroit, Michigan. IVF clinics should consider not rinsing away the semen, she told New Scientist.

Roger Gosden, at the Center for Reproductive Medicine and Infertility in New York, says he doubts that enough of these compounds could get into the female bloodstream to make a difference, but says he and others remain "mystified" by semen's composition.

(Source: Eurekalert)
'"/>




Page: 1

Related medicine news :

1. Shapely sperm-a valuable indicator of fertility
2. Mutant sperm beat out healthy brethren in study
3. Stem cells grown into sperm cells
4. Limiting sperm motility for contraception
5. Gay men cannot donate sperm
6. Shortage of donors at sperm bank clinics
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the ... In terms of the latter, setting the bar too high can result in disappointment, ... just slow progress toward their goal. , Research from PsychTests.com reveals ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may ... to unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To ... for healthy coping following a traumatic event. , Trauma sufferers tend to feel a ...
(Date:6/24/2016)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. ... The attorneys chosen by their peers for this recognition are considered among the top ... Shareholders received special honors as members of this year’s Legal Elite Hall of Fame: ...
(Date:6/24/2016)... ... June 24, 2016 , ... Comfort Keepers® of San Diego, ... and the Road To Recovery® program to drive cancer patients to and from their ... to ensure the highest quality of life and ongoing independence. Getting to and ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016  MedSource announced today that it has ... solution of choice.  This latest decision demonstrates MedSource,s ... their clients by offering a state-of-the-art electronic data ... nowEDC as the EDC platform of choice in ... "nowEDC has long been a preferred EDC platform ...
(Date:6/23/2016)... DUBLIN , June 23, 2016 ... the "Pharmaceutical Excipients Market by Type (Organic Chemical ... Preservative), Formulation (Oral, Topical, Coating, Parenteral) - Global Forecast ... The global pharmaceutical excipients ... 2021 at a CAGR of 6.1% in the forecast ...
(Date:6/23/2016)... Research and Markets has announced the addition of ... Forecast to 2022" report to their offering. ... date financial data derived from varied research sources to present ... impact on the market during the next five years, including ... sub markets, regional and country level analysis. The report provides ...
Breaking Medicine Technology: