The Power of Semen

Originally published on September 19, 2012, on

Just when we thought we had the biology of human reproduction figured out, new research shows there’s still plenty we don’t understand. Today’s example? A team of biologists have shown that a protein commonly found in the semen of many animals—including humans—can help kick-start the release of an egg (a.k.a. ovulation). The protein, which has been on biologists’ radars for a long time, is called beta nerve growth factor, or β-NGF—named for the first thing scientists noticed it doing.

Studies in llamas, alpacas, and cows show that giving β-NGF as a shot leads to the release of an egg in most of the animals. But what about humans? We know there is β-NGF in human semen too, but we don’t know whether it does something similar in humans as in the animals the scientists tested it on. The researchers hope to tackle this question next.

The answers they find will help determine how reliable the rhythm method (a.k.a. fertility awareness) can be as a form of birth control. It could also suggest a new treatment for couples struggling with infertility… We’ll be keeping our ears open!



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suzie c.
suzie c.11 days ago


Geometry D.
Geometry D.17 days ago

Nice to be visiting your blog again, it has been months for me. Well this article that i've been waited for so long. I need this article to complete my assignment in the college, and it has same topic with your article. Thanks, great share. five nights at freddy's

Veronica Danie
Veronica Danie19 days ago

Thank You!

Iskrica Knežzevic

thank you

S Gardner
S Gardner20 days ago


Mari 's
Mari 'sabout a month ago

Have a wonderful Ostara today! This is a great article for today :)

Ivana D.
Ivana D.about a month ago


Iskrica Knežzevic
Iskrica Knežzevicabout a month ago

thank you

Natasha Gordon
Natasha Gordonabout a month ago

Interesting study. I hope that the end result will be to help folks with fertility issues who want to be parents.

Michele Rosenbaum
Michele Rosenbaumabout a month ago

thank you for sharing