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      Low-Dose Methotrexate for the Prevention of Atherosclerotic Events

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          Abstract

          Inflammation is causally related to atherothrombosis. Treatment with canakinumab, a monoclonal antibody that inhibits inflammation by neutralizing interleukin-1β, resulted in a lower rate of cardiovascular events than placebo in a previous randomized trial. We sought to determine whether an alternative approach to inflammation inhibition with low-dose methotrexate might provide similar benefit.

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          Inflammation in atherosclerosis: from pathophysiology to practice.

          Peter Libby, Paul M Ridker, Göran K Hansson (2009)
          Until recently, most envisaged atherosclerosis as a bland arterial collection of cholesterol, complicated by smooth muscle cell accumulation. According to that concept, endothelial denuding injury led to platelet aggregation and release of platelet factors which would trigger the proliferation of smooth muscle cells in the arterial intima. These cells would then elaborate an extracellular matrix that would entrap lipoproteins, forming the nidus of the atherosclerotic plaque. Beyond the vascular smooth muscle cells long recognized in atherosclerotic lesions, subsequent investigations identified immune cells and mediators at work in atheromata, implicating inflammation in this disease. Multiple independent pathways of evidence now pinpoint inflammation as a key regulatory process that links multiple risk factors for atherosclerosis and its complications with altered arterial biology. Knowledge has burgeoned regarding the operation of both innate and adaptive arms of immunity in atherogenesis, their interplay, and the balance of stimulatory and inhibitory pathways that regulate their participation in atheroma formation and complication. This revolution in our thinking about the pathophysiology of atherosclerosis has now begun to provide clinical insight and practical tools that may aid patient management. This review provides an update of the role of inflammation in atherogenesis and highlights how translation of these advances in basic science promises to change clinical practice.
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            The NLRP3 inflammasome in acute myocardial infarction

            Stefano Toldo, Antonio Abbate (2017)
            The heart is extremely sensitive to ischaemic injury. During an acute myocardial infarction (AMI) event, the injury is initially caused by reduced blood supply to the tissues, which is then further exacerbated by an intense and highly specific inflammatory response that occurs during reperfusion. Numerous studies have highlighted the central role of the NACHT, LRR, and PYD domains-containing protein 3 (NLRP3) inflammasome in this process. The inflammasome, an integral part of the innate immune system, is a macromolecular protein complex that finely regulates the activation of caspase 1 and the production and secretion of powerful pro-inflammatory cytokines such as IL-1β and IL-18. In this Review, we summarize evidence supporting the therapeutic value of NLRP3 inflammasome-targeted strategies in experimental models, and the data supporting the role of the NLRP3 inflammasome in AMI and its consequences on adverse cardiac remodelling, cytokine-mediated systolic dysfunction, and heart failure.
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              Modulation of the interleukin-6 signalling pathway and incidence rates of atherosclerotic events and all-cause mortality: analyses from the Canakinumab Anti-Inflammatory Thrombosis Outcomes Study (CANTOS)

              Paul Ridker, Peter Libby, Jean MacFadyen … (2018)
              Canakinumab, a monoclonal antibody targeting interleukin (IL)-1β, reduces rates of recurrent cardiovascular events without lowering lipids. It is uncertain, however, to what extent these beneficial cardiovascular outcomes are mediated through interleukin-6 (IL-6) signalling, an issue with substantial pathophysiologic consequences and therapeutic implications.
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                Author and article information

                Journal
                Title: New England Journal of Medicine
                Abbreviated Title: N Engl J Med
                Publisher: New England Journal of Medicine (NEJM/MMS)
                ISSN (Print): 0028-4793
                ISSN (Electronic): 1533-4406
                Publication date Created: November 10 2018
                Publication date (Electronic): November 10 2018
                Affiliations
                [1 ]From the Center for Cardiovascular Disease Prevention, Division of Preventive Medicine (P.M.R., B.M.E., A.P., J.G.M., E.Z., V.M., N.P.P., R.J.G.), and the Divisions of Cardiovascular Medicine (P.M.R., B.M.E., P.L., S.Z.G.) and Rheumatology (D.H.S.), Brigham and Women’s Hospital, Boston; the National Heart, Lung, and Blood Institute, Bethesda, MD (A.H., Y.R., E.I.); McMaster University, Hamilton (M.G.), the Canadian Collaborative Research Network, Brampton (M.T.), St. Michael’s Hospital, Toronto (S.V.),...
                Article
                DOI: 10.1056/NEJMoa1809798
                PMC ID: 6587584
                PubMed ID: 30415610
                SO-VID: 9fbf6b47-62b4-4b80-b4ca-4a30b7a4e2f3
                Copyright © © 2018
                License:

                http://www.nejmgroup.org/legal/terms-of-use.htm

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