News tagged with white blood cells
Related topics: cells , immune system , immune cells , t cells , immune response
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.
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Stem-cell-based strategy boosts immune system in mice
Raising hopes for cell-based therapies, UC San Francisco researchers have created the first functioning human thymus tissue from embryonic stem cells in the laboratory. The researchers showed that, in mice, ...
Immunology
May 16, 2013 |
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Hospital hypoglycemia rates up in black men with diabetes
(HealthDay)—Home diabetes regimens partially explain the increased risk of having a hypoglycemia event during hospitalization among older African-American men with diabetes, according to a study published ...
Diabetes
May 14, 2013 |
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Researchers discover master regulator that drives majority of lymphoma
A soon-to-be-tested class of drug inhibitors were predicted to help a limited number of patients with B-cell lymphomas with mutations affecting the EZH2 protein. However, a research team, led by investigators at Weill Cornell ...
Cancer
May 13, 2013 |
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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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T cells rely on 'rheostat' to help ensure that the immune response matches the threat
A properly functioning immune system is a lesson in balance, providing protection against disease without attacking healthy tissue. Work led by St. Jude Children's Research Hospital scientists and published recently in Nature Im ...
Immunology
Apr 30, 2013 |
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Type 1 diabetes and heart disease linked by inflammatory protein
Type 1 (insulin-dependent) diabetes appears to increase the risk of heart disease, the leading cause of death among people with high blood sugar, partly by stimulating the production of calprotectin, a protein that sparks ...
Inflammatory disorders
May 07, 2013 |
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Synthetic derivatives of THC may weaken HIV-1 infection to enhance antiviral therapies
A new use for compounds related in composition to the active ingredient in marijuana may be on the horizon: a new research report published in the Journal of Leukocyte Biology shows that compounds that stimulate the cannab ...
HIV & AIDS
Apr 30, 2013 |
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Video reveals cancer cells' Achilles' heel (w/ Video)
(Medical Xpress)—Scientists from the Manchester Collaborative Centre for Inflammation Research (MCCIR) have discovered why a particular cancer drug is so effective at killing cells. Their findings could ...
Cancer
Apr 24, 2013 |
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Trial asthma drug targets lung inflammation
University of Adelaide researchers at the Royal Adelaide Hospital are involved in the world's biggest study of its kind investigating a possible new treatment for asthma.
Inflammatory disorders
May 01, 2013 |
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