A team of medical researchers from the U.S., China and Germany reports that when a mouse feels stressed, its brain sends signals to a gut gland that leads to elimination of a type of bacteria that prevents inflammation and ...
People with celiac disease must navigate everyday life by avoiding gluten, a protein in wheat, rye and barley which can trigger painful symptoms in the gut, impede the absorption of nutrients and raise the risk of other serious ...
Aug 9, 2024
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Florida State University researchers are giving oncologists another tool in their fight against pediatric brain cancer.
Aug 12, 2024
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A WEHI study could help solve a long-standing mystery into why a key immune organ in our bodies shrinks and loses its function as we get older. The thymus is an organ essential for good health due to its ability to produce ...
Aug 14, 2024
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The discovery of a new regulator affecting immune cells could lead to new treatments to reduce inflammation in diseases including arthritis and severe COVID 19.
Aug 14, 2024
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A new study from scientists at Cincinnati Children's suggests there may be a way to further protect transplanted hearts from rejection by preparing the donor organ and the recipient with an anti-inflammatory antibody treatment ...
Aug 12, 2024
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The body has a veritable army constantly on guard to keep us safe from microscopic threats from infections to cancer. Chief among these forces is the macrophage, a white blood cell that surveils tissues and consumes pathogens, ...
Aug 12, 2024
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A Berlin-led research team has uncovered critical regulators of severe kidney damage in patients with lupus, an autoimmune disorder affecting an estimated five million people worldwide, most of whom are young women. A small, ...
Aug 14, 2024
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An activity pattern in certain genes responsible for building proteins known as spleen tyrosine kinases can predict which melanoma patients are likely to have severe side effects from immunotherapy designed to treat the most ...
Aug 8, 2024
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Ulcerative colitis (UC) is an inflammatory bowel disease that causes irritation, inflammation, and ulcers in the tissues lining the large intestine. Known to be a long-term condition, UC can result in significant discomfort, ...
Aug 12, 2024
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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.
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