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    Antioxidant reduces risk for second heart attack, stroke

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    yoly
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    Antioxidant reduces risk for second heart attack, stroke

    Post by yoly on Thu Sep 06 2018, 10:49

    Antioxidant reduces risk for second heart attack, stroke

    Cells and platelets stick inside arteries, increase risk after initial attack

    https://news.ohsu.edu/2018/09/04/antioxidant-reduces-risk-for-second-heart-attack-stroke

    Doctors have long known that in the months after a heart attack or stroke, patients are more likely to have another attack or stroke. Now, a paper in the Journal of the American College of Cardiology explains what happens inside blood vessels to increase risk – and suggests a new way to treat it.

    Heart attacks in mice caused inflammatory cells and platelets to more easily stick to the inner lining of arteries throughout the body – and particularly where there was already plaque, according to the paper. As a result, these sticky cells and platelets caused plaque to become unstable and contribute to blood clots that led to another heart attack or stroke.

    But the study found treating mice that had experienced a heart attack or stroke with the powerful antioxidant apocynin cut plaque buildup in half and lowered inflammation to pre-attack levels.

    “Knowing that newer forms of antioxidants such as apocynin can lower the risk of a second heart attack or stroke gives us a new treatment to explore and could one day help reduce heart attacks and strokes,” said the paper’s corresponding author, Jonathan R. Lindner, M.D., a professor of medicine (cardiovascular medicine) in the OHSU School of Medicine, OHSU Knight Cardiovascular Institute.

    Lindner penned the research paper with colleagues from OHSU, Scripps Research Institute and Bloodworks NW.

    The researchers discovered the sticky cells and platelets by using unique forms of ultrasound imaging they developed to view molecules on the lining of blood vessels.

    This research could help explain why the recent Canakinumab Anti-inflammatory Thrombosis Outcomes Study, also known as the CANTOS clinical trial, found an anti-inflammatory drug already approved to treat juvenile arthritis also reduced the risk of a second heart attack in trial participants by 15 percent.

    Lindner and colleagues are further studying how the relative stickiness of remote arteries affects the risks for additional heart attacks and strokes, and are also evaluating new therapies beyond antioxidants.

    The study was supported by the National Institutes of Health (R01-HL078610, R01-HL130046, R01-HL091153, R01-HL11763, HL42846, HL78784), NASA (grant 14-14NSBRI1-0025) and the Swiss National Science Foundation.
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    chris c
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    Re: Antioxidant reduces risk for second heart attack, stroke

    Post by chris c on Thu Sep 06 2018, 22:48

    Full paper here

    http://sci-hub.tw/10.1016/j.jacc.2018.06.044

    this ties in nicely with some of Malcolm Kendrick's thoughts
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    yoly
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    Re: Antioxidant reduces risk for second heart attack, stroke

    Post by yoly on Sat Sep 08 2018, 18:52

    Yes it seem to go in line with Dr. Kendrick's

    Apocynin, also known as acetovanillone, is a natural organic compound structurally related to vanillin. It has been isolated from a variety of plant sources and is being studied for its variety of pharmacological properties.

    https://en.wikipedia.org/wiki/Apocynin

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