During a stroke or organ transplant, patients can suffer an injury due to lack of blood supply to vital organs. The injury—known as ischemia reperfusion—can cause damage to tissues. But a new Yale-led study has identified ...
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Gene mutations accumulating in cells are typical of the development of cancer. Finnish researchers have found that a similar accumulation of mutations occurs also in some patients with rheumatoid arthritis.
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In the days following abdominal surgery, patients' intestinal contents pass more slowly or not at all. New research at KU Leuven (University of Leuven), Belgium, has now shown that this phenomenon—known as post-operative ...
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A major discovery about a set of immune cells, published today in the journal Science Advances, started with a Creighton University physics professor going a little farther on an experiment than was initially planned.
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Up to 75 percent of patients with systemic lupus erythematosus—an incurable autoimmune disease commonly known as lupus—experience neuropsychiatric symptoms. But so far, our understanding of the mechanisms underlying lupus' ...
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A team of researchers led by Marc Veldhoen at the Instituto de Medicina Molecular (iMM), Lisboa, has found that cellular stress enhances the activation of immune cells implicated in many chronic inflammatory conditions, increasing ...
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Researchers in the University of Maryland (UMD) Fischell Department of Bioengineering (BIOE) Jewell Laboratory are using quantum dots - tiny semiconductor particles commonly used in nanotechnology - to decipher the features ...
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A team of Wayne State University and Barbara Ann Karmanos Cancer Institute researchers recently received funding from the National Cancer Institute of the National Institutes of Health to expand the use of Positron Emission ...
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Ken Shefveland's body was swollen with cancer, treatment after treatment failing until doctors gambled on a radical approach: They removed some of his immune cells, engineered them into cancer assassins and unleashed them ...
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Ken Shefveland's body was swollen with cancer, treatment after treatment failing until doctors gambled on a radical approach: They removed some of his immune cells, engineered them into cancer assassins and unleashed them ...
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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.
This text uses material from Wikipedia, licensed under CC BY-SA
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