News tagged with immune cells

Related topics: immune system · cells · immune response · t cells · autoimmune diseases

Putting autoimmune disease genetic links to the test

Studies of autoimmune and inflammatory diseases have identified hundreds of genetic regions thought to be associated with these conditions. At the same time, studies of expression quantitative trait loci (eQTLs) have revealed ...

Mar 15, 2017
popularity20 comments 0

A breath of fresh air for severe asthma research

Ten to 15 percent of people with asthma have severe asthma, a form of the disease that is not controlled by current medications. Many of these patients are prescribed increased dosages of corticosteroids, but continue to ...

Mar 10, 2017
popularity137 comments 0

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.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed