Navigation Links
Sperm Collide Along Liquid Maze on Way to Fertilize Egg
Date:5/8/2012

TUESDAY, May 8 (HealthDay News) -- Sperm cells navigate the complex fluid-filled channels of the female reproductive tract by crawling along walls and swimming around corners, a new study reveals.

And although millions of sperm cells are ejaculated, the few that actually reach an egg collide frequently along the way.

This new insight on how sperm travel could help scientists develop new treatments for infertile couples, say British researchers who injected the cells into hair-thin microchannels, or mini-mazes, to identify which sperm are the fastest swimmers and why.

"In basic terms, how do we find the 'Usain Bolt' among the millions of sperm in an ejaculate," study author Dr. Jackson Kirkman-Brown, lead in reproductive biology at the University of Birmingham and science lead at the Birmingham Women's Fertility Centre, said in a news release.

"Sperm cell following walls is one of those cases when a complicated physiological system obeys very simple mechanical rules," study leader Dr. Petr Denissenko, at the University of Warwick's School of Engineering, said in the news release.

As described by the researchers, the sperm's journey sounds more like a bumper car ride than a smooth swim upstream.

"When the channel turns sharply, cells leave the corner, continuing ahead until hitting the opposite wall of the channel, with a distribution of departure angles, the latter being modulated by fluid viscosity," the researchers said. "Specific wall shapes are able to preferentially direct motile cells."

The researchers concluded their findings could help scientists developing treatments for infertility to identify the strongest sperm cells.

The findings appear online in this week's issue of the Proceedings of the National Academy of Sciences.

More information

The U.S. National Institutes of Health provides more information on infertility.

-- Mary Elizabeth Dallas

SOURCE: University of Warwick, news release, May 7, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. New Clues Shed Light on Sperm Function, Male Fertility
2. Smoking Could Harm Sperm, Study Finds
3. Fast-Freeze May Help Sperm Survive Storage, Study Finds
4. Genetic Glitch Tied to Disrupted Sperm Production
5. Dietary Fats Seem to Affect Sperm Quality
6. Many male cancer patients are missing out on sperm banking
7. Plastics Chemical BPA Tied to Poor Sperm Quality
8. Sperm-Producing Cells Coaxed to Produce Insulin
9. Biologists discover control center for sperm production
10. Sperm quality and counts worsening in Finland
11. Can Crotch Length Predict Sperm Strength?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sperm Collide Along Liquid Maze on Way to Fertilize Egg
(Date:5/27/2016)... ... May 27, 2016 , ... An educational ... by inspiring human-interest stories, courtesy of awareness-driven celebrities and thought leaders. It also ... advocates, associations and industry leaders such as Bioness. , As patients feel ...
(Date:5/27/2016)... ... 2016 , ... Aimed at nurses and employees in the health care world, ... in the nursing and health care industry. It also provides insight to the developing ... , As the nursing industry is coming out of one of the biggest ...
(Date:5/26/2016)... ... May 26, 2016 , ... There are many ways to ... Sausage Council (NHDSC) suggests that Americans prefer their dogs straight off the grill. Of ... grilling is their favorite way to cook a hot dog, far outpacing other cooking ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... (IP) to its specialty academic programs. , Answering to the increasing demand for ... programs in health law, and environmental and land use law. ,  , “The ...
(Date:5/26/2016)... Pittsburgh, PA (PRWEB) , ... May 26, 2016 ... ... transplantation, and one that has a significant negative impact on long-term patient survival, ... to date. The results, published online this week in the Journal of Thoracic ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... 2016 Hutchison China MediTech ... on the highly lucrative global oncology and immunology ... potential first-in-class or best-in-class tyrosine kinase inhibitor (TKI) ... strategic partners. HCM,s profitable Chinese healthcare business continues ... expect progress of the mid-to-late-stage pipeline during 2016-17 ...
(Date:5/27/2016)... , May 27, 2016 Amarantus ... focused on developing products for Regenerative Medicine, Neurology and Orphan Diseases, ... will be presenting at two upcoming investor conferences: ... 730 Third Avenue, New York City , NY ... Marcum MicroCap Conference   Where: Grand ...
(Date:5/26/2016)... 26, 2016 According to a new ... Market - U.S. Industry Analysis, Size, Share, Growth, Trends, and ... the U.S. was valued at US$ 5.89 Bn in 2014 ... from 2015 to 2023 to reach US$ 7.99 Bn in ... and emerging needle free drug delivery devices and the market ...
Breaking Medicine Technology: