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Comment
. 2020 Aug 21;41(32):3023-3027.
doi: 10.1093/eurheartj/ehaa706.

Understanding COVID-19: in the end it is the endothelium-what else?

Affiliations
Comment

Understanding COVID-19: in the end it is the endothelium-what else?

Thomas F Lüscher. Eur Heart J. .
No abstract available

PubMed Disclaimer

Figures

Figure 1
Figure 1
Cytokine storm. Proinflammatory cytokines such as IL-1 and TNF-α induce each other’s gene expression, unleashing an amplification loop that sustains the cytokine storm. The endothelial cell is a key target of cytokines, as they induce action of a central proinflammatory transcriptional hub, nuclear factor-κB. IL-1 also cause substantial increases in production by endothelial and other cells of IL-6, the instigator of the hepatocyte acute phase response. The acute phase reactants include fibrinogen, the precursor of clot, and PAI-1, the major inhibitor of our endogenous fibrinolytic system. C-reactive protein, commonly elevated in COVID-19, provides a readily measured biomarker of inflammatory status. The alterations in the thrombotic/fibrinolytic balance due to the acute phase response predisposes towards thrombosis in arteries, in the microvasculature including that of organs such as the myocardium and kidney, and in veins, causing deep vein thrombosis and predisposing towards pulmonary embolism. Thus, the very same cytokines that elicit abnormal endothelial functions can unleash the acute phase response which together with local endothelial dysfunction can conspire to cause the clinical complications of COVID-19. The right side of this diagram aligns therapeutic agents that attack these mechanisms of the cytokine storm and may thus limit its devastating consequences (from Libby P, Lüscher T. COVID-19 is, in the end, an endothelial disease. See pages 3038–3044).
Figure 2
Figure 2
(A) Over a period of 60 days from 20 February, the cumulative incidence of COVID-19 per 100 000 inhabitants in the four provinces and in the overall territory (dotted line) (upper part), and the trend of the difference of OHCA between 2020 and 2019 per 100 000 inhabitants in the four provinces and in the overall territory (dotted line) (bottom part). (B) The cumulative incidence of the difference in OHCA between 2020 and 2019 per 100 000 inhabitants as a function of the cumulative incidence of COVID-19 per 100 000 inhabitants, since 20 February 2020. Dots are the observed values. The red line is the function fitted using fractional polynomials. The shaded area is the 95% CI for the estimates (from Baldi E, Maria Sechi G, Mare C, Canevari F, Brancaglione A, Primi R, Klersy C, Palo A, Contri E, Ronchi V, Beretta G, Reali F, Parogni P, Facchin F, Rizzi U, Bussi D, Ruggeri S, Visconti LO, Savastano S, on behalf of the Lombardia CARe researchers. COVID-19 kills at home: the close relationship between the epidemic and the increase of out-of-hospital cardiac arrests. See pages 3045–3054).
None

Comment on

  • Characteristics and outcomes of patients hospitalized for COVID-19 and cardiac disease in Northern Italy.
    Inciardi RM, Adamo M, Lupi L, Cani DS, Di Pasquale M, Tomasoni D, Italia L, Zaccone G, Tedino C, Fabbricatore D, Curnis A, Faggiano P, Gorga E, Lombardi CM, Milesi G, Vizzardi E, Volpini M, Nodari S, Specchia C, Maroldi R, Bezzi M, Metra M. Inciardi RM, et al. Eur Heart J. 2020 May 14;41(19):1821-1829. doi: 10.1093/eurheartj/ehaa388. Eur Heart J. 2020. PMID: 32383763 Free PMC article.
  • COVID-19 kills at home: the close relationship between the epidemic and the increase of out-of-hospital cardiac arrests.
    Baldi E, Sechi GM, Mare C, Canevari F, Brancaglione A, Primi R, Klersy C, Palo A, Contri E, Ronchi V, Beretta G, Reali F, Parogni P, Facchin F, Rizzi U, Bussi D, Ruggeri S, Oltrona Visconti L, Savastano S; Lombardia CARe researchers. Baldi E, et al. Eur Heart J. 2020 Jun 1;41(32):3045-3054. doi: 10.1093/eurheartj/ehaa508. Eur Heart J. 2020. PMID: 32562486 Free PMC article.
  • Pulmonary embolism in COVID-19 patients: a French multicentre cohort study.
    Fauvel C, Weizman O, Trimaille A, Mika D, Pommier T, Pace N, Douair A, Barbin E, Fraix A, Bouchot O, Benmansour O, Godeau G, Mecheri Y, Lebourdon R, Yvorel C, Massin M, Leblon T, Chabbi C, Cugney E, Benabou L, Aubry M, Chan C, Boufoula I, Barnaud C, Bothorel L, Duceau B, Sutter W, Waldmann V, Bonnet G, Cohen A, Pezel T; Critical Covid-19 France Investigators. Fauvel C, et al. Eur Heart J. 2020 Jul 1;41(32):3058-3068. doi: 10.1093/eurheartj/ehaa500. Eur Heart J. 2020. PMID: 32656565 Free PMC article.
  • COVID-19 is, in the end, an endothelial disease.
    Libby P, Lüscher T. Libby P, et al. Eur Heart J. 2020 Sep 1;41(32):3038-3044. doi: 10.1093/eurheartj/ehaa623. Eur Heart J. 2020. PMID: 32882706 Free PMC article. Review.

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