Navigation Links
Computer model predicts red blood cell flow
Date:8/13/2013

WASHINGTON D.C. August 13, 2013 -- Adjacent to the walls of our arterioles, capillaries, and venules -- the blood vessels that make up our microcirculation -- there exists a peculiar thin layer of clear plasma, devoid of red blood cells. Although it is just a few millionths of a meter thick, that layer is vital. It controls, for example, the speed with which platelets can reach the site of a cut and start the clotting process.

"If you destroy this layer, your bleeding time can go way up, by 60 percent or more, which is a real issue in trauma," said Eric Shaqfeh, the Lester Levi Carter Professor and a professor of chemical engineering and mechanical engineering at Stanford University. Along with his colleagues, Shaqfeh has now created the first simplified computer model of the process that forms that layer -- a model that could help to improve the design of artificial platelets and medical treatments for trauma injuries and for blood disorders such as sickle cell anemia and malaria.

The model is described in a paper appearing in the journal Physics of Fluids.

The thin plasma layer, known as the Fhrus-Lindqvist layer, is created naturally when blood flows through small vessels. In the microcirculation, the layer forms because red blood cells tend to naturally deform and lift away from the vessel walls. "The reason they don't just continually move away from the wall and go far away is because, as they move away, then also collide with other red blood cells, which force them back," Shaqfeh explained. "So the Fhrus-Lindqvist layer represents a balance between this lift force and collisional forces that exist in the blood."

Because the deformation of red blood cells is a key factor in the FhrusLindqvist layer, its properties are altered in diseases, such as sickle cell anemia, that affect the shape and rigidity of those cells. The new model, which is a scaled-down version of an earlier numerical model by Shaqfeh and colleagu
'/>"/>

Contact: Jason Socrates Bardi
jbardi@aip.org
240-535-4954
American Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Computational biology: Cells reprogrammed on the computer
2. Computer can infer rules of the forest
3. Emerging importance of computerized cognitive testing -- new therapies for dementia
4. Solving DNA puzzles is overwhelming computer systems, researchers warn
5. Daydreaming simulated by computer model
6. Computer modeling technique goes viral at Brandeis
7. Computer simulations yield clues to how cells interact with surroundings
8. Computer model may help athletes and soldiers avoid brain damage and concussions
9. Computer modeling reveals how surprisingly potent hepatitis C drug works
10. New supercomputer to aid genomics research
11. New supercomputer coming to EMSL this summer, supplied by Atipa Technologies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... in the bladders of healthy women differ from ... incontinence, according to researchers from Loyola University Chicago ... published July 9, 2014, in the American Society ... that bacterial communities may play a role in ... is a common, yet poorly understood, condition with ...
(Date:7/9/2014)... Indiana state parks have helped restore the health of ... populations of white-tailed deer, a Purdue study shows. , ... of forest ecology, found that a 17-year-long Indiana Department ... parks has successfully spurred the regrowth of native tree ... , Jenkins said that while hunting may be ...
(Date:7/9/2014)... Sexual selection refers to species, selection for traits ... type of natural selection enhances opportunities to mate, the ... Biologists at the University of California, Riverside have now ... of a placenta are linked. Describing the life ... the family Poeciliidae, the researchers found that species with ...
Breaking Biology News(10 mins):Hunting gives deer-damaged forests in state parks a shot at recovery 2Biologists link sexual selection and placenta formation 2Biologists link sexual selection and placenta formation 3Biologists link sexual selection and placenta formation 4
... , NEW YORK, July 16, 2011 Experts from ... Langone Medical Center will present new research at the ... be held in Paris, France from July 16 ... mild cognitive impairment in retired football players, with Stella ...
... Ore. Nerve cells in the eye require vitamin C ... may mean vitamin C is required elsewhere in the brain ... at Oregon Health & Science University recently published in the ... retina need to be ,bathed, in relatively high doses of ...
... at Mount Sinai School of Medicine have found that ... or delay the progression of Alzheimer,s disease. The research, ... Family Professor in Neurology, and Professor of Psychiatry and ... Medicine, was published online in the current issue of ...
Cached Biology News:NYU Langone Medical Center's tip sheet to the 2011 Alzheimer's Association International Conference 2NYU Langone Medical Center's tip sheet to the 2011 Alzheimer's Association International Conference 3NYU Langone Medical Center's tip sheet to the 2011 Alzheimer's Association International Conference 4NYU Langone Medical Center's tip sheet to the 2011 Alzheimer's Association International Conference 5NYU Langone Medical Center's tip sheet to the 2011 Alzheimer's Association International Conference 6OHSU scientists discover new role for vitamin C in the eye -- and the brain 2Natural chemical found in grapes may protect against Alzheimer's disease 2
(Date:1/14/2014)... Communications, a leading provider of strategic communications services to corporations and ... the United States and Europe ... JD, is returning to the firm,s Washington, D.C. ... more than two years of service as Associate Commissioner for the ...
(Date:1/14/2014)... 2014 The largest international professional organization of ... therapeutic derivatives thereof has endorsed an educational program ... the challenges of adulterated herb and botanical products. ... The Society for Medicinal Plant and Natural ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 In recent ... motives and methods in product development and promotion has ... industry. This mistrust, fueled by concerns about the insidious ... by reports of spectacular fines to the world’s biggest ...
(Date:1/14/2014)... Ontario , Jan. 14, 2014   Kinaxis ®, provider ... SCM ) and sales and operations planning ( S&OP ) ... Biomanufacturing Summit , which will be held at the ... the conference, join Kinaxis customer Elisabeth Kaszas , Director ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... Multiple births can be avoidedATLANTA, Jan. 30 For the ... to seek help after this week,s birth of octuplets ... births can be prevented with today,s advanced technologies."Infertility affects ... desiring to be pregnant to do is shy away ...
... Basic Sciences award in this inaugural edition of the ... by physicists Peter Zoller (Austria, 1952) and Ignacio Cirac ... science", in the words of the jury chaired by ... Cirac,s research is opening up vital new avenues for ...
... RANCHO CORDOVA, Calif., Jan. 29 ThermoGenesis,Corp. (Nasdaq: ... that process,and store adult stem cells, announced today it ... December 31, 2008, on Wednesday, February,4, 2009. , ... Management will host a conference ...
Cached Biology Technology:You Want To Have a Baby...But Not Eight 2Peter Zoller and Ignacio Cirac, awarded by the BBVA Foundation 2ThermoGenesis Corp. to Announce Second Quarter Fiscal 2009 Results on February 4, 2009 2
...
... Ribonuclease III (RNase III) from E. coli ... RNA (dsRNA) to dsRNA fragments that have ... results in dsRNA fragments of 12-15 bp. ... composed of canonical ribonucleotides as well as ...
Rabbit polyclonal to Peptide E ( Abpromise for all tested applications)....
Mouse monoclonal [6911] to E. coli K99 pilus ( Abpromise for all tested applications)....
Biology Products: