Between natural infection and a global vaccination campaign, most people now have some immunity against the virus that causes COVID-19. This widespread immunity hasn't stopped people from getting infected, but it has dampened ...
Apr 3, 2023
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Long thought of as "brain glue," the star-shaped cells called astrocytes—members of a family of cells found in the central nervous system called glial that help regulate blood flow, synaptic activity, keep neurons healthy, ...
Mar 31, 2023
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Acetylcholine regulates blood flow, but the source of blood acetylcholine has been unclear. Now, researchers at Karolinska Institutet have discovered that certain T cells in human blood can produce acetylcholine, which may ...
Mar 30, 2023
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The magnitude and quality of a key immune cell's response to vaccination with two doses of the Pfizer-BioNTech COVID-19 vaccine were considerably lower in people with prior SARS-CoV-2 infection compared to people without ...
Mar 20, 2023
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A key feature of the severe allergic reaction known as anaphylaxis is an abrupt drop in blood pressure and body temperature, causing people to faint and, if untreated, potentially die.
Mar 17, 2023
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Introducing bacteria to a tumor's microenvironment creates a state of acute inflammation that triggers the immune system's primary responder cells to attack rather than protect a tumor, according to a new study from the Garvan ...
Mar 13, 2023
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A pilot trial by investigators from Brigham and Women's Hospital, a founding member of the Mass General Brigham health care system, tested the nasal administration of the drug Foralumab, an anti-CD3 monoclonal antibody. Investigators ...
Mar 8, 2023
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Rheumatoid arthritis (RA), which causes painful swelling of the joints, is a form of autoimmune disease where otherwise healthy tissue in a patient's joint gets mistaken for an intruder and is attacked by the immune system. ...
An international team of medical scientists has found more evidence of infections in pregnant women raising the risk of leukemia developing in babies. In their paper published in JAMA Network Open, the group analyzed data ...
Up to now, the use of models to research the barrier that separates the circulatory from the nervous system has proven to be either limited or extremely complicated. Researchers at ETH Zurich have developed a more realistic ...
Feb 17, 2023
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