scholarly journals Angiotensin-Converting-Enzyme 2 and SARS-CoV2: A Dangerous Liaison

2020 ◽  
Vol 2020 (1) ◽  
pp. 1
Author(s):  
Adrian Sturza ◽  
Cătălin V. Marian ◽  
Danina M. Muntean ◽  
Octavian M. Crețu

The renin–angiotensin–aldosterone system (RAAS) has been recognized as a key player in the complex scenario of cardiovascular regulation. Aside from its role in the cardiovascular diseases, RAAS dysregulation has emerged as a central pathomechanism in the severe acute respiratory syndrome coronavirus 1 (SARS-CoV1) epidemic, dating back to 2002–2004, and the current COVID-19 pandemic with SARS-CoV2, with the latter involving the interaction with angiotensin-converting enzyme 2 (ACE2). ACE2 is the enzyme responsible for Ang 1-7 production that partly counteracts the RAAS effects and promotes nitric oxide synthase activation; moreover, it has also been reported to act as a receptor for both SARS viruses. In the setting of the ongoing COVID-19 pandemic, the SARS–ACE2 interaction is highly debated with respect to both viral infectivity and usage/discontinuation of RAAS medication—ACE inhibitors (ACEi) and angiotensin-receptor blockers (ARBs)—in diagnosed or suspected SARS-CoV2 patients. Since ACE inhibitors and ARBs are largely prescribed in cardiovascular pathology, a better understanding of the interaction between SARS-CoV2 and RAAS is urgently needed. In this review, we will briefly discuss the SARS-CoV2 and ACE2 interaction and why the discontinuation of RAAS medication is unsafe for either diagnosed or suspected SARS-CoV2 patients.

Author(s):  
Rohan Khera ◽  
Callahan Clark ◽  
Yuan Lu ◽  
Yinglong Guo ◽  
Sheng Ren ◽  
...  

Background: Whether angiotensin-converting enzyme (ACE) Inhibitors and angiotensin receptor blockers (ARBs) mitigate or exacerbate SARS-CoV-2 infection remains uncertain. In a national study, we evaluated the association of ACE inhibitors and ARB with coronavirus disease-19 (COVID-19) hospitalization and mortality among individuals with hypertension. Methods: Among Medicare Advantage and commercially insured individuals, we identified 2,263 people with hypertension, receiving ≥1 antihypertensive agents, and who had a positive outpatient SARS-CoV-2 test (outpatient cohort). In a propensity score-matched analysis, we determined the association of ACE inhibitors and ARBs with the risk of hospitalization for COVID-19. In a second study of 7,933 individuals with hypertension who were hospitalized with COVID-19 (inpatient cohort), we tested the association of these medications with in-hospital mortality. We stratified all our assessments by insurance groups. Results: Among individuals in the outpatient and inpatient cohorts, 31.9% and 29.8%, respectively, used ACE inhibitors and 32.3% and 28.1% used ARBs. In the outpatient study, over a median 30.0 (19.0 - 40.0) days after testing positive, 12.7% were hospitalized for COVID-19. In propensity score-matched analyses, neither ACE inhibitors (HR, 0.77 [0.53, 1.13], P = 0.18), nor ARBs (HR, 0.88 [0.61, 1.26], P = 0.48), were significantly associated with risk of hospitalization. In analyses stratified by insurance group, ACE inhibitors, but not ARBs, were associated with a significant lower risk of hospitalization in the Medicare group (HR, 0.61 [0.41, 0.93], P = 0.02), but not the commercially insured group (HR: 2.14 [0.82, 5.60], P = 0.12; P-interaction 0.09). In the inpatient study, 14.2% died, 59.5% survived to discharge, and 26.3% had an ongoing hospitalization. In propensity score-matched analyses, neither use of ACE inhibitor (0.97 [0.81, 1.16]; P = 0.74) nor ARB (1.15 [0.95, 1.38]; P = 0.15) was associated with risk of in-hospital mortality, in total or in the stratified analyses. Conclusions: The use of ACE inhibitors and ARBs was not associated with the risk of hospitalization or mortality among those infected with SARS-CoV-2. However, there was a nearly 40% lower risk of hospitalization with the use of ACE inhibitors in the Medicare population. This finding merits a clinical trial to evaluate the potential role of ACE inhibitors in reducing the risk of hospitalization among older individuals, who are at an elevated risk of adverse outcomes with the infection.


Author(s):  
Celestino Sardu ◽  
Paolo Maggi ◽  
Vincenzo Messina ◽  
Pasquale Iuliano ◽  
Antonio Sardu ◽  
...  

BACKGROUND Coronavirus disease 2019 (COVID‐19) is the cause of a pandemic disease, with severe acute respiratory syndrome by binding target epithelial lung cells through angiotensin‐converting enzyme 2 in humans. Thus, patients with hypertension with COVID‐19 could have worse prognosis. Indeed, angiotensin‐converting enzyme inhibitors and/or angiotensin receptor blockers may interfere with angiotensin‐converting enzyme 2 expression/activity. Thus, patients with hypertension undergoing angiotensin‐converting enzyme inhibitor and/or angiotensin receptor blockers drug therapy may be at a higher risk of contracting a serious COVID‐19 infection and should be monitored. Moreover, in the present study we investigated the effects of angiotensin‐converting enzyme inhibitor versus angiotensin receptor blockers versus calcium channel blockers on clinical outcomes as mechanical ventilation, intensive care unit admissions, heart injury, and death in 62 patients with hypertension hospitalized for COVID‐19 infection. METHODS AND RESULTS The multicenter study was prospectively conducted at Department of Infectious Diseases of Sant'Anna Hospital of Caserta, and of University of Campania "Luigi Vanvitelli" of Naples, at Department of Advanced Surgical and Medical Sciences of University of Campania "Luigi Vanvitelli," Naples, and at General Medical Assistance Unit "FIMG," Naples, Italy. Lowest values of left ventricle ejection fraction predicted deaths (1.142, 1.008–1.294, P <0.05), while highest values of interleukin‐6 predicted the admission to intensive care unit (1.617, 1.094–2.389), mechanical ventilation (1.149, 1.082–1.219), heart injuries (1.367, 1.054–1.772), and deaths (4.742, 1.788–8.524). CONCLUSIONS Anti‐hypertensive drugs didn't affect the prognosis in patients with COVID‐19. Consequently, tailored anti‐inflammatory and immune therapies in addition to chronic antihypertensive therapy, could prevent a worse prognosis, as well as improve the clinical outcomes in patients with hypertension with COVID‐19 infection.


2021 ◽  
pp. 82-84
Author(s):  
A. Yogalakshmee ◽  
Manimekalai Manimekalai ◽  
Saranya Devi

Coronavirus 2019 (COVID-19) causing severe acute respiratory syndrome. (SARS-CoV-2), has affected more than seven million people worldwide. The virus enter the cell through angiotensin-converting enzyme (ACE)-2 receptor . Hypertension as well as cardiovascular disease coexist with COVID-19 have generated discussion on the management of patients with hypertension. Here we discuss the pathophysiology of SARS-CoV-2 infection with ACE2 receptors, the cardiovascular system, and the kidney. Result showing evidence on the use of antihypertensive medication such as ACE inhibitors and angiotensin receptor blockers in SHTN patients with COVID-19.


Author(s):  
Maximilian Tscharre ◽  
Patricia P. Wadowski ◽  
Constantin Weikert ◽  
Joseph Pultar ◽  
Beate Eichelberger ◽  
...  

Abstract Background In patients with acute coronary syndrome (ACS), angiotensin-converting enzyme (ACE) inhibitors are preferred over angiotensin receptor blockers (ARBs). However, in a recent pilot study, treatment with ACE inhibitors was associated with increased platelet reactivity compared to ARBs. Therefore, we sought to investigate the impact of renin-angiotensin-aldosterone system (RAAS) blockade with ACE inhibitors and ARBs on platelet aggregation in patients with ACS undergoing percutaneous coronary intervention. Methods On-treatment residual platelet reactivity in response to arachidonic acid (AA), adenosine diphosphate (ADP), SFLLRN, AYPGKF, and collagen was assessed by multiple electrode aggregometry (MEA) in 197 ACS patients on dual antiplatelet therapy (DAPT) with aspirin and either prasugrel or ticagrelor. Results One hundred sixty-five (83.7%) patients were treated with ACE inhibitors, 32 (16.3%) with ARBs. On-treatment residual AA- and ADP-inducible platelet reactivity was significantly higher in patients with ACE inhibitors (both p < 0.05). Likewise, SFLLRN was significantly higher in patients with ACE inhibitors (p = 0.036) and there was a trend for higher AYPGKF- and collagen-inducible platelet reactivity (p = 0.053 and p = 0.082). The incidence of high on-treatment residual platelet reactivity AA was significantly higher in patients with ACE inhibitors (52 [31.5%] vs. 3 [9.4%] patients; p = 0.019). Conclusion ACE inhibitors are associated with increased on-treatment residual platelet reactivity in ACS patients with potent DAPT. Further clinical trials are needed to elucidate the role of RAAS blockade with ACE inhibitors and ARBs in ACS patients treated according to current standards.


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