News tagged with white blood cells
Engineered cytomegalovirus protects monkeys from HIV equivalent
(Medical Xpress)—A new study by researchers in the US has shown that an ancient virus can be modified to help in the fight against the simian immunodeficiency virus SIV, which is the equivalent in monkeys ...
HIV & AIDS
14 hours ago |
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Team finds antibody that transforms bone marrow stem cells directly into brain cells
In a serendipitous discovery, scientists at The Scripps Research Institute (TSRI) have found a way to turn bone marrow stem cells directly into brain cells.
Medical research
Apr 22, 2013 |
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White blood cells found to play key role in controlling red blood cell levels
Researchers at Albert Einstein College of Medicine of Yeshiva University and the Icahn School of Medicine at Mount Sinai have found that macrophages – white blood cells that play a key role in the immune response – also ...
Medical research
Mar 17, 2013 |
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Wolf in sheep's clothing: Uncovering how deadly bacteria trick immune system
An outbreak of tuberculosis in the skid row area of downtown Los Angeles may have exposed up to 4,500 individuals to the bacterium that causes the deadly disease and has left federal officials scrambling ...
Medical research
Feb 28, 2013 |
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Study finds mutations linked to relapse of childhood leukemia
After an intensive three-year hunt through the genome, medical researchers have pinpointed mutations that leads to drug resistance and relapse in the most common type of childhood cancer—the first time anyone has linked ...
Genetics
Feb 03, 2013 |
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Genes and their regulatory 'tags' conspire to promote rheumatoid arthritis, study finds
In one of the first genome-wide studies to hunt for both genes and their regulatory "tags" in patients suffering from a common disease, researchers have found a clear role for the tags in mediating genetic ...
Genetics
Jan 20, 2013 |
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Mouse study offers clues to obesity-diabetes link
(HealthDay)—Obesity and type 2 diabetes are clearly intertwined, but researchers say they've found a way to weaken the connection between the two—at least in mice.
Medical research
Dec 06, 2012 |
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Double duty: Immune system regulator found to protect brain from effects of stroke
A small molecule known to regulate white blood cells has a surprising second role in protecting brain cells from the deleterious effects of stroke, Johns Hopkins researchers report. The molecule, microRNA-223, affects how ...
Immunology
Nov 28, 2012 |
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Brain displays an intrinsic mechanism for fighting infection
(Medical Xpress)—White blood cells have long reigned as the heroes of the immune system. When an infection strikes, the cells, produced in bone marrow, race through the blood to fight off the pathogen. ...
Medical research
Nov 19, 2012 |
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Neutrophils: White blood cells mediate insulin resistance
Researchers at the University of California, San Diego School of Medicine say neutrophils, an abundant type of white blood cell typically tasked with attacking bacteria and other foreign invaders, also plays ...
Medical research
Aug 05, 2012 |
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Pioneering research shows drug can purge dormant HIV
Researchers from the University of North Carolina at Chapel Hill have published pioneering research showing that a drug used to treat certain types of lymphoma was able to dislodge hidden virus in patients receiving treatment ...
HIV & AIDS
Jul 25, 2012 |
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Helper T cells, not killer T cells, might be responsible for clearing hepatitis A infection
Helper cells traditionally thought to only assist killer white blood cells may be the frontline warriors when battling hepatitis A infection. These are the findings from a Nationwide Children's Hospital study appearing in ...
Diseases, Conditions, Syndromes
Jul 16, 2012 |
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Scientists find new mechanism by which cell signaling pathway contributes to rheumatoid arthritis development
A new study led by researchers at Hospital for Special Surgery identifies the mechanism by which a cell signaling pathway contributes to the development of rheumatoid arthritis (RA). In addition, the study provides evidence ...
Immunology
May 20, 2012 |
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Scientists identify novel pathway for T-cell activation in leprosy
UCLA researchers pinpointed a new mechanism that potently activates T-cells, the group of white blood cells that play a major role in fighting infections.
Medical research
Mar 25, 2012 |
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Scientists find new potential target for rheumatoid arthritis
Newcastle University scientists, in work funded by Arthritis Research UK, have discovered a new way of potentially treating rheumatoid arthritis. This works by preventing damaging white blood cells cells from entering the ...
Inflammatory disorders
Mar 05, 2012 |
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White blood cell
White blood cells (WBCs), or leukocytes (also spelled "leucocytes"), are cells of the immune system defending the body against both infectious disease and foreign materials. Five different and diverse types of leukocytes exist, but they are all produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system.
The number of leukocytes in the blood is often an indicator of disease. There are normally between 4×109 and 1.1×1010 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult. An increase in the number of leukocytes over the upper limits is called leukocytosis, and in leukopenia, this number is much lower than the lower limit. The physical properties of leukocytes, such as volume, conductivity, and granularity, may change due to activation, the presence of immature cells, or the presence of malignant leukocytes in leukemia.
For more information about White blood cell, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
