Using the gene editing technology CRISPR, scientists have shed light on a rare, sometimes fatal syndrome that causes children to gradually lose the ability to manufacture vital blood cells.
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People constantly encounter viruses, bacteria or parasites. Fortunately, our skin, the specialized lining of our guts and other parts of our body that are exposed to the outside world prevent them from entering. When a pathogen ...
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Researchers at the University of Zurich have shown for the first time that hematopoietic stem cells detect infectious agents themselves and begin to divide—that is, without signals from growth factors. This direct production ...
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UAlberta researchers believe they now have a clearer picture of why people living with HIV so commonly suffer from dementia and other neurocognitive disorders.
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Whether a melanoma patient will better respond to a single immunotherapy drug or two in combination depends on the abundance of certain white blood cells within their tumors, according to a new study conducted by UC San Francisco ...
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Scientists have found a new way to protect stem cells from harsh inflammation during wound repair. In a study recently published in the journal Cytotherapy, researchers in India discovered that treating mice with a common ...
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A super cell in the eye has been discovered that can stop the deadly Ebola virus.
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A team of scientists and doctors from the SingHealth Duke-NUS Academic Medical Centre (AMC) has uncovered a new group of regulatory T (Treg) cells and DNA features associated with juvenile idiopathic arthritis (JIA), the ...
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Researchers from the University of Southampton have identified why some people may become resistant to monoclonal antibodies, a common type of immunotherapy used in lymphoma treatment.
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A ground-breaking new class of oral drugs for treating breast cancer, known as cyclin-dependent kinase (CDK) inhibitors, are generally well-tolerated, with a manageable toxicity profile for most patients. This is the conclusion ...
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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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