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:2/10/2016)... ... February 10, 2016 , ... ... full-service health care communications company offering education, research and medical media, has ... and specialists working in infectious diseases. , As the all-inclusive resource for ...
(Date:2/10/2016)... ... February 10, 2016 , ... As part of its ongoing series ... 2016. Each webinar features a dynamic expert and thoughtful presentation to give attendees ... and facilities. Both events are free to attend, but registration is required. ...
(Date:2/10/2016)... ... February 10, 2016 , ... ... The Guard, to associations of medical professionals throughout the country. The Guard was ... risk assessments, policies and procedures, employee training, regulatory updates, and compliance coaching. , ...
(Date:2/10/2016)... ... 2016 , ... 10 Best Water is excited to announce a ... owners that topped the list as a result of their commitment to offering clients ... was Tibet 5100, a top notch water company that specializes in providing the public ...
(Date:2/10/2016)... , ... February 10, 2016 , ... Ongoing news of ... Life Care Association™ (ALCA) to conduct a survey that takes a closer look at ... today illustrates the prevalence and causes of TBI among the aging population, and identifies ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... New York , February 10, 2016 ... Growth, Trends and Forecast 2015 - 2023 ", reveals that ... rather slow growth from 2015 to 2023 owing to patent ... a meager CAGR of 1.30% during the forecast period, the ... to US$38.9 bn in 2023. --> Antibacterial Drugs ...
(Date:2/10/2016)... 10, 2016 Intouch Solutions, a leading marketing ... industry-wide trend regarding the evolution of digital sales ... efficiently deliver compelling sales presentations via tablets. After ... in 2015, Intouch uncovered that while most pharmaceutical ... DSAs, many are not using them effectively during ...
(Date:2/10/2016)... , Feb. 9, 2016 ... Drug Administration (FDA) met with its Arthritis ... proposed biosimilar of Johnson & Johnson,s Remicade ... be approved in the U.S. The Biologics ... physician groups - Alliance for Patient Access, ...
Breaking Medicine Technology: