Scientists on Sunday said they had found a key piece in the puzzle as to why a tiny minority of individuals infected with HIV have a natural ability to fight off the deadly AIDS virus.
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(Medical Xpress)—The first symptoms of major depression may be behavioral, but the common mental illness is based in biology—and not limited to the brain.
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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.
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Researchers in Newcastle and Singapore have identified a new type of white blood cell which activates a killing immune response to an external source – providing a new potential target for vaccines for conditions such ...
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A phase 1 clinical trial for the first treatment to reset the immune system of multiple sclerosis (MS) patients showed the therapy was safe and dramatically reduced patients' immune systems' reactivity to myelin by 50 to ...
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In one of the first genome-wide studies to hunt for both genes and their regulatory "tags" in patients suffering from a common disease, researchers have found a clear role for the tags in mediating genetic ...
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(Medical Xpress)—Scientists at Karolinska Institutet in Sweden have presented a new principle for fighting bacterial infections, in other words, a new type of antibiotic, in the FASEB Journal. The new antibiotic mechan ...
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Research from Boston University School of Medicine (BUSM) shows that improving vitamin D status by increasing its level in the blood could have a number of non-skeletal health benefits. The study, published online in PLOS ON ...
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Periodontitis, a form of chronic gum disease that affects nearly half of the U.S. adult population, results when the bacterial community in the mouth becomes unbalanced, leading to inflammation and eventually bone loss. In ...
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Newcastle University scientists, in work funded by Arthritis Research UK, have discovered a new way of potentially treating rheumatoid arthritis. This works by preventing damaging white blood cells cells from entering the ...
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When poet Walt Whitman wrote that we "contain multitudes," he was speaking metaphorically, but he was correct in the literal sense. Every human being carries over 100 trillion individual bacterial cells within ...
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Symptoms of an autoimmune disease disappeared after a team of scientists retrained the white blood cells. This method is extremely promising for treating diseases such as type I diabetes and multiple sclerosis.
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Scientists at Griffith University's Institute for Glycomics and The Saban Research Institute of Children's Hospital Los Angeles have discovered a critical weakness in leukaemic cells, which may pave the way to new treatments.
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A small, early-phase clinical trial to test the effectiveness of treating patients with advanced melanoma using billions of clones of their own tumor-fighting cells combined with a specific type of chemotherapy has shown ...
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A new study suggests that nicotinamide, more commonly known as vitamin B3, may be able to combat some of the antibiotic-resistance staph infections that are increasingly common around the world, have killed thousands and ...
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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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