A team of neurologists, stem cell specialists and molecular biologists affiliated with several institutions in the U.S. and led by a group at Stanford University School of Medicine has found evidence that the root cause of ...
The human gut—or gastrointestinal system—where food is broken down into nutrients for the body, is an ecosystem that harbors thousands of bacteria species. While some microorganisms are harmful, many are beneficial and ...
Sep 29, 2023
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Just as you can't make an omelet without breaking eggs, scientists at Albert Einstein College of Medicine have found that you can't make long-term memories without DNA damage and brain inflammation. Their surprising findings ...
Mar 27, 2024
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A team of medical scientists at the University of Electronic Science and Technology of China, working with a colleague from the Army Medical University and another from the Luzhou Maternal and Child Health Hospital, has found ...
In experiments with mice and humans, a team led by Johns Hopkins Medicine researchers says it has identified a particular intestinal immune cell that impacts the gut microbiome, which in turn may affect brain functions linked ...
Mar 20, 2023
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Researchers at the UCLA Jonsson Comprehensive Cancer Center have identified a new role for a protein called extracellular signal-regulated kinase (ERK) in a pathway activated by interferon-gamma that can trigger cells to ...
Oct 10, 2023
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Immune cells play an active and intimate role in directing the growth of human lung tissue during development, researchers find, revolutionizing our understanding of early lung development and the role of immune cells outside ...
Dec 15, 2023
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One of the more rigorous debates in immunology has centered on the origin of an enigmatic T cell population that possesses properties imparting memory and stem cell–like qualities, but facts about their genesis were so ...
Rabies virus is incurable and almost always fatal once it has invaded the central nervous system, with the victim doomed to suffer a horrible death.
Sep 28, 2023
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Metabolites produced by gut bacteria during digestion can be used to trigger an immune response against colorectal cancer cells, according to new University of Alberta research, published in Frontiers in Immunology, that ...
Sep 13, 2023
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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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