Navigation Links
Clumps of red and white blood cells may contribute to sickle cell disease
Date:4/28/2008

CHAPEL HILL Its long been known that patients with sickle cell disease have malformed, sickle-shaped red blood cells which are normally disc-shaped that can cause sudden painful episodes when they block small blood vessels.

Now, researchers at the University of North Carolina at Chapel Hill School of Medicine have shown that blood from sickle cell patients also contains clumps, or aggregates, of red and white blood cells that may contribute to the blockages.

The study, published on-line April 18 in the British Journal of Haematology, marks the first time that aggregates made up of red blood cells and white blood cells have been found in whole blood from sickle cell patients. The study also shows how the red and white blood cells adhere to one another: the interaction is mediated by a particular protein, integrin alpha four beta one.

First author Julia E. Brittain, Ph.D., a research assistant professor in the medical schools department of biochemistry and biophysics, said further study could lead to new treatments for the disease. If the blockages are caused by these chunks of aggregates that are circulating in the blood, and we know how the aggregates are sticking together, we potentially could design drugs to disrupt the aggregates so that they pass through the blood vessel more freely, she said.

Normal red blood cells dont interact with white blood cells. But Brittain first showed in lab tests with isolated cells that young red blood cells (reticulocytes) would interact with white blood cells and form aggregates with them. Then, she looked for such clumps in blood samples from 14 people with sickle cell disease. All the patient samples studied had clumps, though some had only a few, while others had thousands. She didnt see clumps in samples from patients without sickle cell disease.

Brittain said other researchers may have disrupted the aggregates because blood collection tubes usually contain an anticoagulant
'/>"/>

Contact: Leslie Lang
llang@med.unc.edu
919-843-9687
University of North Carolina at Chapel Hill
Source:Eurekalert

Page: 1 2

Related biology news :

1. New whitepaper offers options for university implementation of NIH policy
2. Unveiling the underwater ways of the white shark
3. ESA honored at White House ceremony
4. Menstrual blood -- a valuable source of multipotential stem cells?
5. Effective cancer immune therapy through order in the blood vessels
6. Bloodless worm sheds light on human blood, iron deficiency
7. Mental stress reduces blood flow to the heart in patients with gene variation
8. Backpack straps can decrease blood flow in the shoulder and arm
9. Yale study shows how rare genes have big impact on blood pressure
10. T-cadherin affects blood vessel growth in breast cancer, hormone from fat cells may play a role
11. Umbilical cord blood cell therapy may reduce signs and symptoms of Alzheimers disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/31/2014)... a new test that can distinguish between birds that ... influenza virus or "bird flu" with those that have ... in the fight against this often fatal strain of ... of South East Asia, particularly Indonesia and Vietnam. , ... to humans and the threat of a pandemic if ...
(Date:10/31/2014)... , Oct. 30, 2014  HITLAB SM ... pleased to announce its inaugural HITLAB Innovators Summit ... University,s Low Library. HITLAB will partner with the ... Wellness, Blueprint Health, ProtoHack, Columbia Business School Alumni ... and Columbia Industrial Engineering and Operations Research, bringing ...
(Date:10/30/2014)... a $1.04 million grant from the U.S. Army ... osteoarthritis using a patient,s own stem cells, spurred ... polymers., Liping Tang, a bioengineering professor and interim ... is primarily focused on helping soldiers who are ... if we inject microscaffolding that we,ve developed into ...
Breaking Biology News(10 mins):New step towards eradication of H5N1 bird flu 2HITLAB Announces Inaugural HITLAB Innovators Summit 2HITLAB Announces Inaugural HITLAB Innovators Summit 3UTA researcher uses microscaffolding injections to mend cartilage, prevent osteoarthritis 2
... medication robbed Elma Phifer of her vision two decades ago ... reduced the ability of her eyes to soothe their damaged ... family and friends to help her do many of the ... twenty years and several life milestones later, Elma is able ...
... share a genetic profile that appears to be unique ... researchers at Cincinnati Children's Hospital Medical Center. The discovery ... specifically tailored to children who suffer from the severest ... Feb. 10 issue of the Journal of Allergy and ...
... throw a wrench in the transmissions of several speed demons ... Medicine in St. Louis and Harvard University have identified a ... slow cell invasion by malaria and other parasites known as ... March 15 issue of Proceedings of the National Academy of ...
Cached Biology News:Artifical cornea lets woman blind 20 years see 2Artifical cornea lets woman blind 20 years see 3Artifical cornea lets woman blind 20 years see 4Asthma gene clusters identified 2Asthma gene clusters identified 3Protein offers way to stop microscopic parasites in their tracks 2Protein offers way to stop microscopic parasites in their tracks 3
(Date:10/30/2014)... Global polyvinyl chloride (PVC) demand registered a ... 2008-2009, especially in North America and Europe. However, the ... to a growing trend. , The largest chunk of ... construction segment. In 2013, the key PVC application spheres ... rigid film. Moreover, the PVC was consumed in the ...
(Date:10/30/2014)... October 30, 2014 SoundConnect ... provider, offers Office 365 end users the key ... complete phone system by adding voice enablement and ... includes Lync Online, a communication tool that includes ... With hosted voice, O365 becomes a comprehensive unified ...
(Date:10/30/2014)... 2014 Spartan Bioscience announced today that ... System . It detects CYP2C19 genetic mutations in less ... The Spartan RX CYP2C19 System is the first near-patient ... in Canada. Due to the system’s ease of use, ... by healthcare professionals such as doctors, nurses, pharmacists, and ...
(Date:10/30/2014)... Ras Al Khaimah, UAE (PRWEB) October 30, 2014 ... the appointment of Dr. James A. Manganello, Chairman of the ... (NSCEC) of The Bahamas. The appointment was made by ... The Bahamas on September 24th, 2014. , More ... Cell Therapy and Research Bill , Prime Minister Perry Christie ...
Breaking Biology Technology:Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 2Global Polyvinyl Chloride Demand Is on Upward Trend Now, Says Merchant Research & Consulting in Its Topical Study 3SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Health Canada approves first near-patient DNA test for personalized medicine 2Health Canada approves first near-patient DNA test for personalized medicine 3Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 2Grace Century’s Stem Cell Biobank Project Announces Chairman’s Appointment to National Stem Cell Ethics Committee of The Bahamas 3
... (EMBL) discovered a new way to make use of drugs, ... how similar the side effects of different drugs are and ... molecule. The study, published in Science this week, ... often share target proteins, modes of action and unpleasant side ...
... ATRC ), a medical device company and a leader ... the second,quarter ended June 30, 2008 on Tuesday, August 5, ... a.m. ET on Tuesday,August 5, 2008 to discuss second quarter ... be available online from the investor relations,page of AtriCure,s corporate ...
... increased 38% to $42.3 million ... income rose 30% to $14.2 million, SHANGHAI, ... Board: CHBT) ("China-Biotics", "the,Company"), a leading Chinese firm ... of probiotics products,today announced its financial results for ...
Cached Biology Technology:Teaching old drugs new tricks 2AtriCure Announces Web Cast and Conference Call of Second Quarter 2008 Financial Results 2China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 2China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 3China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 4China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 5China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 6China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 7China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 8China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 9China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 10China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 11China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 12China-Biotics, Inc. Reports Fourth Quarter and Full Year Fiscal 2008 Financial Results 13
... low temperature freezers offer a superior ... of biological samples with high capacities. ... inner doors ensure excellent warming protection ... ,Application oriented accessories simplify tracking of ...
...
Verotoxin IIbeta (457)...
... Universal Vacuum System UVS400 is a multi-tasking ... UVS400 combines a refrigerated vapor trap and ... single integrated unit. The easy-to-use, wide-mouth glass ... into single jar for easy disposal. The ...
Biology Products: