News tagged with white blood cells
Why fish oils work swimmingly against diabetes
Researchers at the University of California, San Diego School of Medicine have identified the molecular mechanism that makes omega-3 fatty acids so effective in reducing chronic inflammation and insulin resistance.
Medicine & Health / Medical research
Sep 02, 2010 |
4.9 / 5 (22) |
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Researchers discover way to reverse immune system aging
Researchers at the Technion-Israel Institute of Technology have discovered a way to reverse the aging process by removing old B lymphocytes (a type of white blood cell in the vertebrate immune system) from ...
Medicine & Health / Medical research
Jan 27, 2011 |
4.9 / 5 (15) |
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Scientists find the 'master switch' for key immune cells in inflammatory diseases
(PhysOrg.com) -- Scientists have identified a protein that acts as a "master switch" in certain white blood cells, determining whether they promote or inhibit inflammation. The study, published in the journal ...
Medicine & Health / Medical research
Jan 16, 2011 |
4.6 / 5 (12) |
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Pigeons' navigation skill not down to iron-rich beak cells: study
The theory that pigeons' famous skill at navigation is down to iron-rich nerve cells in their beaks has been disproved by a new study published in Nature.
Apr 11, 2012 |
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A sweet discovery raises hope for treating Ebola, Lassa, Marburg and other fast-acting viruses
When a team of European researchers sought to discover how a class of antiviral drugs worked, they looked in an unlikely place: the sugar dish. A new research report appearing in the Journal of Leukocyte Biology suggests that a ...
Nov 03, 2010 |
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The code for survival: Cells fight stress by reprogramming a system of RNA modifications
(PhysOrg.com) -- When cells are exposed to life-threatening stresses, they take quick action to save themselves. Among other defenses, they start manufacturing proteins that perform critical tasks such as ...
Dec 17, 2010 |
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Scientists bioengineer a protein to fight leukemia
Scientists at the Children's Center for Cancer and Blood Diseases and The Saban Research Institute of Children's Hospital Los Angeles today announced a breakthrough discovery in understanding how the body ...
Feb 18, 2011 |
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'I'm a tumor and I'm over here!' Nanovaults used to prod immune system to fight cancer (w/ video)
(PhysOrg.com) -- UCLA scientists have discovered a way to wake up the immune system to fight cancer by delivering an immune system-stimulating protein in a nanoscale container called a vault directly into ...
Nanotechnology / Bio & Medicine
May 03, 2011 |
4.8 / 5 (5) |
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New study upends thinking about how liver disease develops
In the latest of a series of related papers, researchers at the University of California, San Diego School of Medicine, with colleagues in Austria and elsewhere, present a new and more definitive explanation of how fibrotic ...
Medicine & Health / Medical research
Dec 20, 2010 |
4.6 / 5 (5) |
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Images shed new light on inflammation (w/ Video)
Researchers at the University of Calgary Faculty of Medicine are using an innovative new imaging technique to study how white blood cells (called neutrophils) respond to inflammation, and have revealed new targets to inhibit ...
Medicine & Health / Medical research
Oct 15, 2010 |
5 / 5 (4) |
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New level of genetic diversity in human RNA sequences uncovered
A detailed comparison of DNA and RNA in human cells has uncovered a surprising number of cases where the corresponding sequences are not, as has long been assumed, identical. The RNA-DNA differences generate proteins that ...
May 19, 2011 |
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Cancer-killing cells are caught on film in more 3D detail than ever before
Scientists reveal in more detail than ever before how white blood cells kill diseased tissue using deadly granules, in research published today in PLoS Biology.
Sep 14, 2011 |
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In a new microchip, cells separate by rolling away
Cell rolling is a common mechanism cells use to navigate through the body. During inflammation, for example, the endothelial cells that line blood vessels present certain molecules that attract white blood ...
Chemistry / Analytical Chemistry
Feb 24, 2012 |
5 / 5 (4) |
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Study finds children with autism have mitochondrial dysfunction
Children with autism are far more likely to have deficits in their ability to produce cellular energy than are typically developing children, a new study by researchers at UC Davis has found. The study, published today in ...
Medicine & Health / Diseases, Conditions, Syndromes
Nov 30, 2010 |
4.3 / 5 (4) |
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FDA clears first melanoma drug to extend life
(AP) -- The Food and Drug Administration has approved a breakthrough cancer medication from Bristol-Myers Squibb Co. that researchers have heralded as the first drug to prolong the lives of patients with ...
Medicine & Health / Medications
Mar 25, 2011 |
4.3 / 5 (4) |
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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.
