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:3/24/2015)... , March 24, 2015   NexID Biometrics ... with critical security-authentication needs, today announced the beginning of ... (FFD) solution. The company, based in ... at the three-day Connect:ID Expo, which began here today ... NexID said version 2.0 of its SDK boosts the ...
(Date:3/23/2015)... BOSTON, Mass , March 23, 2015 SoundView ... shipment of NXT-ID,s (NASDAQ: NXTD ) Wocket smart wallet. SoundView ... world user feedback on their experience with the Wocket in ... experience at CVS, Whole Foods and other retailers, making both ... Kris Tuttle also says, "If the company meets ...
(Date:3/23/2015)... 2015  In the 2014 fiscal year, irs.gov recorded ... This figure accounts for a fraction of the estimated ... Report, exceeds $11 billion globally. The polygraph has traditionally ... has occurred. Investor Mark Saint Juste along ... Paolella partnered to administer the test in a ...
Breaking Biology News(10 mins):NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3
... Over time, the esoteric and sometimes downright strange quests ... others looking for perceived examples of waste in government ... Tom Brock,s National Science Foundation-supported treks to Yellowstone National ... might easily have been singled out as yet another ...
... VIRGINIA An article published in the September issue ... societies and offers insights for scientific societies to respond ... science. The American Institute of Biological Sciences (AIBS) ... of the biological sciences community and how this community ...
... , Sept. 12, 2013 BioClaim, Inc. announced as ... , Amerigroup Community Care of Florida ... biometric software at select physician offices in the ... with Amerigroup Florida," said Scott Kimmel , executive vice ...
Cached Biology News:Decades on, bacterium's discovery feted as paragon of basic science 2Decades on, bacterium's discovery feted as paragon of basic science 3Scientific societies face 'modern challenges' 2BioClaim, Inc. Signs Biometric Software Contract with Amerigroup Florida 2BioClaim, Inc. Signs Biometric Software Contract with Amerigroup Florida 3
(Date:5/4/2015)... /PRNewswire/ - Fluorinov Pharma (Fluorinov), a FACIT portfolio ... Dr. Roger J Garceau, to its Board of ... matters including corporate development and clinical strategy, his ... regulatory expertise as Fluorinov transitions to clinical development.  ... of pharmaceutical development experience to Fluorinov and most ...
(Date:5/4/2015)... Achieved primarily through a proprietary paraffin ... 10 to 100x better detail than the industry standard. ... existing light microscopy methods, it needed another medium to ... the frame of reference because it represents the highest ... from the earliest discovery days of Ultralight Histology was ...
(Date:5/4/2015)... 2015   Tocagen Inc. , a clinical-stage ... Tocagen,s ongoing investigational studies were presented at the 11 ... Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons ... in Washington, D.C. In ... with FDA and continues to advance towards initiation ...
(Date:5/1/2015)...  Northwest Biotherapeutics (NASDAQ: NWBO ) ("NW Bio"), ... for solid tumor cancers, announced today that the Company ... a $40 million investment from Woodford investment funds in ... million in NW Bio on November 19, 2014.  On ... the Company for a further $40 million investment in ...
Breaking Biology Technology:Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 2Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 4Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 5NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 3
... ... of Situational Leadership V™ series to its portfolio. , ... San Francisco, Calif. (PRWEB) October 2, 2009 ... (SLV) series specifically for biotech and specialty pharma companies. The new series includes Situational ...
... ... Orange County Emerging Growth Awards, recognizing companies headquartered in Orange County that have reached ... 12 months and that have made a positive impact on the local economy. ... Orange County, CA ...
... a plane the consequences can be fatal, not only for ... the aircraft fuselage, causing stresses in the material which can ... skin will detect such damage at an early stage and ... they don,t need any cables or batteries. They draw their ...
Cached Biology Technology:Perceptum Group Announces New Situational Leadership V Series 2Southern California Venture Network Announces Recipients of the 2009 Orange County Emerging Growth Awards 2Southern California Venture Network Announces Recipients of the 2009 Orange County Emerging Growth Awards 3Southern California Venture Network Announces Recipients of the 2009 Orange County Emerging Growth Awards 4Energy-autonomous sensors for aircraft 2
Desmosomal Protein Immunogen: Full length, native protein purified from human epidermal keratins. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Mouse monoclonal [SPM217] to Secretory Component Glycoprotein ( Abpromise for all tested applications)....
Mouse monoclonal [3G8] to MDMA ( Abpromise for all tested applications)....
Shh Antibody Shipping Temperature: HOT Storage Temperature: -20C...
Biology Products: