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

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1 2

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:6/3/2015)... These are challenging and unpredictable times for ... of digital-first business are rewriting the rules for business ... need for traditional businesses to take on a more ... their services. On top of this there is ... start-ups, to bring new innovation and approaches to business. ...
(Date:6/3/2015)... First Choice Emergency Room , ... the United States, announced that it is opening its ... , “I am pleased to announce that we ... facility in the San Antonio area,” said Dr. James ... Room. , First Choice Emergency Room is revolutionizing ...
(Date:6/3/2015)... ON (PRWEB) June 03, 2015 On ... a Marketing Authorization (MA), effective immediately, which now permits ... foods that contain oats as ingredients. The MA is ... being developed. All stakeholders should be aware that, unlike ... in the USA, there are restrictions for gluten-free oat ...
(Date:6/3/2015)... 03, 2015 Foot and Ankle ... Casey Friske ( Clarksville Division ) was recently ... Symposium of Advanced Wound Care (SAWC) and the American ... Dan Davis. The Conference was held on April ... Center in San Antonio, TX. , Dr. Casey ...
(Date:6/3/2015)... (PRWEB) June 03, 2015 Veatch Consulting ... Satisfaction. Since they first opened for business in April ... service the needs of their clients. Each and every ... Veatch Dental Consulting is proud to say that they ... , A new feature recently added this year is ...
Breaking Medicine News(10 mins):Health News:Chief Digital Officer of Travelex joins Bayer, Abellio and Just Eat at The Open Mobile Summit London 2Health News:First Choice Emergency Room to Open New Facility in San Antonio, Texas 2Health News:Health Canada Allows For Conditional Use Of Gluten-Free Oats 2Health News:Health Canada Allows For Conditional Use Of Gluten-Free Oats 3Health News:Foot and Ankle Specialists of the Mid-Atlantic, LLC Receives Award at the Spring 2015 Symposium of Advanced Wound Care Conference 2Health News:Veatch Consulting Services Is Breaking New Ground in Customer Satisfaction 2Health News:Veatch Consulting Services Is Breaking New Ground in Customer Satisfaction 3
... ... ... ... ...
... NC A novel technology for delivering nicotine to the ... the habit. When compared to the nicotine vapor ... proved more effective at delivering nicotine to the blood stream. ... according to Duke University Medical Center researchers. Users also reported ...
... against trying on your own , SATURDAY, Feb. ... way for children with serious peanut allergies, with two ... kids, tolerance over time. , Both studies were small, ... on peanut-allergic children whose immune systems were prompted to ...
... ... faculty and staff, a seven-member team of community college administrators from across ... for GateWay Community College. The news was announced at an exit meeting ... Rebecca Nickoli talked of how the team saw firsthand the college,s "engagement ...
... ... addition of Garrett and Sylvia McGrath, top earners in the network marketing industry and ... ... -- EvolvHealth LLC http://EvolvHealth.com announced today the addition of Garrett and Sylvia ...
... ... ... , , ... ...
Cached Medicine News:Health News:American Red Cross Responds Internationally and at Home to Chile Quake 2Health News:American Red Cross Responds Internationally and at Home to Chile Quake 3Health News:American Red Cross Responds Internationally and at Home to Chile Quake 4Health News:American Red Cross Responds Internationally and at Home to Chile Quake 5Health News:American Red Cross Responds Internationally and at Home to Chile Quake 6Health News:New smoking cessation therapy proves promising 2Health News:Kids' Peanut Allergies Might Be Tamed: Study 2Health News:Kids' Peanut Allergies Might Be Tamed: Study 3Health News:Kids' Peanut Allergies Might Be Tamed: Study 4Health News:GateWay Community College Receives Strong Endorsement for Re-accreditation 2Health News:GateWay Community College Receives Strong Endorsement for Re-accreditation 3Health News:Why Leading Network Marketers Garrett and Sylvia McGrath Joined EvolvHealth LLC 2Health News:Why Leading Network Marketers Garrett and Sylvia McGrath Joined EvolvHealth LLC 3Health News:Doctors Applaud Latest Furlough Reversal 2Health News:Doctors Applaud Latest Furlough Reversal 3
(Date:6/2/2015)... June 3, 2015 Today, the ... Internet. As markets become ever more transparent, the importance ... AG recognised long ago. Its maxim of "innovation brings ... networking and digitisation. The company has long ... "state of the art" technology and modern approach, while ...
(Date:6/2/2015)...  Vanda Pharmaceuticals Inc. (Vanda) (NASDAQ: VNDA ), ... of products for the treatment of central nervous system ... M.D., Vanda,s President and CEO, will deliver a corporate ... New York City on Thursday, June ... The presentation at the Jefferies Global Healthcare Conference will ...
(Date:6/2/2015)... N.C. , June 2, 2015 Kewaunee ... Board of Directors declared a quarterly cash dividend of ... 2015 to stockholders of record at the close of ... Kewaunee Scientific Founded in 1906, Kewaunee Scientific ... manufacture, and installation of laboratory, healthcare, and technical furniture ...
Breaking Medicine Technology:
... Sweden, September 1 Calabar AB, a privately,held ... announced a EUR 350,000 equity financing from the ... Calabar,s product,through a phase II study with repeated ... drug on the minor glands will lead to ...
... 1 Biosensors,International Group, Ltd ("Biosensors", "Company"), ... drug-eluting stent,developed by Biosensors, has demonstrated equal ... Johnson,s industry leading drug-eluting stent, CYPHER,SELECT(TM) ("Cypher"), ... The results of the landmark study were ...
Cached Medicine Technology:Biosensors DES Demonstrates Equivalent Safety and Efficacy to Industry Leading DES in First 'Real World, All Comers' Clinical Study 2Biosensors DES Demonstrates Equivalent Safety and Efficacy to Industry Leading DES in First 'Real World, All Comers' Clinical Study 3
Designed to lift corneal cap/flap during corneal lamellar surgery...
... Refractive drape has two perforations ... adapts to various single or ... draping. Refractive drape has two ... Drape adapts to various single ...
Unique 2 in 1 design allows simultaneous absorption of excess fluid & protection of flap & hinge, Lint-free PVAmaterial....
Angled 45, 9mm from end, Longer design from bend to tip allows for easier placement of viscoelastic to all meridians, Dome shape, extra smooth tip...
Medicine Products: