Semen found to induce ovulation

Previously thought to have no physiological effects, the prostatic fluid component of semen contains a protein that can trigger ovulation and other pregnancy-related hormonal responses in female mammals. The discovery, by an international team of scientists led by Gregg Adams at the University of Saskatchewan, raises intriguing questions about fertility in mammals, including humans.

The researchers say the protein, dubbed ovulation-inducing factor (OIF), has been found in the semen of all species of mammal they have looked at so far. In the process of discovering its identity, the team compared OIF to thousands of other proteins, including nerve growth factor (NGF) which is found primarily in nerve cells throughout the body.

Using a variety of techniques, the researchers compared OIF and NGF and found them to have the same structure and to cause the same effects across species. “To our surprise, it turns out they are the same molecule,” Adams says. “Even more surprising is that the effects of NGF in the female were not recognized earlier, since it’s so abundant in seminal plasma.”

Adams explained that the OIF/NGF in semen acts as a hormonal signal, working through the hypothalamus of the female brain and the pituitary gland. This triggers the release of other hormones that signal the ovaries to release an egg (or eggs, depending on the species). In experiments with llamas, the researchers were able to induce ovulation simply by injecting the protein directly into the animals’ bloodstream.

The study, appearing in the Proceedings of the National Academy of Sciences, notes that while OIF/NGF functions slightly differently from animal to animal, it is present in all mammals studied so far, from llamas, cattle and koalas to pigs, rabbits, mice, and humans.

This implies an important role in reproduction in all mammals, according to Adams. “The idea that a substance in mammalian semen has a direct effect on the female brain is a new one,” he said. “This latest finding broadens our understanding of the mechanisms that regulate ovulation and raises some intriguing questions about fertility. Just how it works, its role in various species and its clinical relevance to human infertility are a few of the questions that remain to be answered.”

Related:
Discuss this article in our forum
Alarming sperm quality decline in Finland
Sperm quality unaffected by lifestyle choices
Ovulation triggers female risk-taking behavior
Ovulation goggles make Mr Wrong look like Mr Right

Source: University of Saskatchewan

, ,

Comments are closed.

I FART SEMEN MAGNET round circle funny gay LGBTQ prank car bumper sticker 4X4 picture

I FART SEMEN MAGNET round circle funny gay LGBTQ prank car bumper sticker 4X4

$8.99



Rare Custom Made 12'' long Forged Damascus Skinner cum BOWIE W/wooden Block Grip picture

Rare Custom Made 12'' long Forged Damascus Skinner cum BOWIE W/wooden Block Grip

$129.99



Cummins Cum Is Missing Premium Vinyl Decal picture

Cummins Cum Is Missing Premium Vinyl Decal

$12.99



Brass Nazar Battu Entrance Evil Eye Protector Cum Door Knocker Home Wall Decor picture

Brass Nazar Battu Entrance Evil Eye Protector Cum Door Knocker Home Wall Decor

$160.55



Old Hand Painted Postcard: South End, Elloughton (cum Brough) England Snow View picture

Old Hand Painted Postcard: South End, Elloughton (cum Brough) England Snow View

$5.99



Gimme That Semen picture

Gimme That Semen

$23.74



AUTHENTIC GROUP of FULL CAVALER OF THE ORDER of GLORY POPOV SEMEN KUZMICH picture

AUTHENTIC GROUP of FULL CAVALER OF THE ORDER of GLORY POPOV SEMEN KUZMICH

$15000.00



Trade Card EUREKA Flat Cum Core Packing  picture

Trade Card EUREKA Flat Cum Core Packing

$11.99



19c Vintage Old Rare Indo Persian Unique Shape Iron Spear End Lance Cum Mace picture

19c Vintage Old Rare Indo Persian Unique Shape Iron Spear End Lance Cum Mace

$562.50



Brass Nazar Battu Home Wall Decor Entrance Evil Eye Protector Cum Door Knocker picture

Brass Nazar Battu Home Wall Decor Entrance Evil Eye Protector Cum Door Knocker

$142.50



Powered by WordPress. Designed by WooThemes