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  2. Scientists May Have Discovered What Causes Long COVID ... - AOL

    www.aol.com/scientists-may-discovered-causes...

    For that study, researchers analyzed data from 1,540 people with symptoms of long COVID, as well as blood samples from 58 people who had brain fog between three and 22 months after they had COVID-19.

  3. Embolic and thrombotic events after COVID-19 vaccination

    en.wikipedia.org/wiki/Embolic_and_thrombotic...

    Disseminated intravascular coagulation (DIC), diffuse formation of blood clots throughout the blood vessels of the body, has been reported as part of the syndrome. [27] DIC may cause a range of symptoms, including abnormal bleeding, breathlessness, chest pain, neurological symptoms, low blood pressure, or swelling.

  4. Long Covid blood test offers first clues into what causes the ...

    www.aol.com/news/long-covid-blood-test-possible...

    Putrino and his colleagues compared blood samples of 268 people. Some had Covid but had fully recovered, some had never been infected, and the rest had ongoing symptoms of long Covid at least four ...

  5. Biological functions of nitric oxide - Wikipedia

    en.wikipedia.org/wiki/Biological_functions_of...

    Nitric oxide dilates blood vessels, raising blood supply and lowering blood pressure. Conversely, it helps protect tissues from damage due to low blood supply. [8] Also a neurotransmitter, nitric oxide acts in the nitrergic neurons active on smooth muscle, abundant in the gastrointestinal tract and erectile tissue. [49]

  6. Ischemia - Wikipedia

    en.wikipedia.org/wiki/Ischemia

    Ischemia or ischaemia is a restriction in blood supply to any tissue, muscle group, or organ of the body, causing a shortage of oxygen that is needed for cellular metabolism (to keep tissue alive). [3] [4] Ischemia is generally caused by problems with blood vessels, with resultant damage to or dysfunction of tissue i.e. hypoxia and ...

  7. Study examines blood clot risk for surgical patients with ...

    www.aol.com/study-examines-blood-clot-risk...

    Surgical patients who have recently had Covid-19 appear to have a higher risk of blood clots after their operation, a study suggests. Researchers said increased surveillance of patients should be ...

  8. Fibrinoid necrosis - Wikipedia

    en.wikipedia.org/wiki/Fibrinoid_necrosis

    Fibrinoid necrosis is a pathological lesion that affects blood vessels, and is characterized by the occurrence of endothelial damage, followed by leakage of plasma proteins, including fibrinogen, from the vessel lumen; these proteins infiltrate and deposit within the vessel walls, where fibrin polymerization subsequently ensues.

  9. Biomarker - Wikipedia

    en.wikipedia.org/wiki/Biomarker

    In biomedical contexts, a biomarker, or biological marker, is a measurable indicator of some biological state or condition. Biomarkers are often measured and evaluated using blood, urine, or soft tissues [1] to examine normal biological processes, pathogenic processes, or pharmacologic responses to a therapeutic intervention. [2]

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