Navigation Links
Slipper-shaped blood cells
Date:10/26/2009

Red blood cells, which make up 45 percent of blood, normally take the shape of circular cushions with a dimple on either side. But they can sometimes deform into an asymmetrical slipper shape. A team of physicists have used simulations to explore how fluid flow might be responsible for this deformation, as well as how the deformation in turn affects blood flow. The insights could help understand the mechanisms involved in arterial disease and other blood flow-related ailments. Their research is reported in Physical Review Letters and highlighted with a Viewpoint in the October 26 issue of Physics (Physics.aps.org).

When a red blood cell flows through an artery, one face usually balloons out like a parachute, but sometimes the cell can deform to resemble a slipper. To find out why, Badr Kaoui at the Universit Joseph Fourier in Grenoble, France and his colleagues modeled the cells as two-dimensional fluid-filled sacks flowing in a liquid. They found that when the cells weren't sufficiently plump, the symmetric parachute collapsed into a slipper. They also found that this morphing helped the sacks catch up with the rest of the fluid, suggesting that the slipper shape achieves more efficient blood flow.

Little is known about how the shape of red blood cells could change how they transport oxygen or how they interact with chemicals in the body. More generally, understanding circulation is important to pathology of illnesses like coronary heart disease. The ailment, which develops when plaque obstructs blood flow in an artery, is the leading cause of death in the United States. Kaoui and his colleagues' research takes important first steps toward understanding the consequences of red blood cell shape and behavior on overall blood flow.


'/>"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
Source:Eurekalert  

Page: 1

Related biology news :

1. High blood pressure, low energy -- a recipe for heart failure
2. Right breakfast bread keeps blood sugar in check all day
3. U of M begins nations first clinical trial using T-reg cells from cord blood in leukemia treatment
4. Folic acid lowers blood arsenic levels, according to Mailman School of Public Health study
5. Folic acid lowers blood arsenic levels in Bangladesh
6. Study reveals a key to blood vessel growth and possible drug target
7. Expecting an afternoon nap can reduce blood pressure
8. MIT: blood may help us think
9. Immune cells promote blood vessel formation in mouse endometriosis
10. Elevated nitric oxide in blood is key to high altitude function for Tibetans
11. Fine-tuning lasers to destroy blood-borne diseases like AIDS
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Slipper-shaped blood cells
(Date:1/11/2017)... , Jan. 11, 2017  Michael Johnson, co-founder of Visikol Inc. ... Group, Inc., has been named to the elite "Forbes 30 Under ... one of 600 people in 20 fields nationwide to be recognized ... the 15,000 applicants were selected. ... He is currently a PhD candidate at Rutgers University. ...
(Date:1/6/2017)...  Delta ID Inc., a leader in consumer-grade iris ... at CESĀ® 2017. Delta ID has collaborated with Gentex ... use of iris scanning as a secure, reliable and ... a car, and as a way to elevate the ... Delta ID and Gentex will demonstrate (booth #7326 LVCC) ...
(Date:1/3/2017)... 3, 2017 Onitor, provider of digital health ... Track, an innovative biometric data-driven program designed to aid ... at the 2017 Consumer Electronics Show (CES) in ... the U.S., the World Health Organization (WHO), have identified ... adults who are overweight or obese. WHO also states ...
Breaking Biology News(10 mins):
(Date:1/21/2017)... N.J. , Jan. 20, 2017 ... "Company"), a company that provides clinically useful molecular ... it has entered into a securities purchase agreement ... of 855,000 shares of common stock in a ... the Company has agreed to sell to the ...
(Date:1/20/2017)... -- Stock-Callers.com explores the Biotech industry to ... recent performances of select equities. In this morning,s lineup ... Abeona Therapeutics Inc. (NASDAQ: ABEO ), Theravance ... Therapeutics Inc. (NASDAQ: SAGE ). According to ... market size is expected to reach $604.40 billion by 2020 due to ...
(Date:1/19/2017)... 19, 2017  Market Research Future has a half cooked research ... Biopsy is growing rapidly and expected to reach USD 450 Million ... ... Biopsy Market has been assessed as a swiftly growing market and ... in the coming future. There has been a tremendous growth in ...
(Date:1/19/2017)... ... January 19, 2017 , ... November ... to leading biopharmaceutical and medical device manufacturers and regulators, is proud to announce ... Part 11-compliant email client designed to provide product vigilance departments with the flexibility ...
Breaking Biology Technology: