Background: The novel coronavirus SARS-Cov2 uses the angiotensin-converting enzyme 2 (ACE2) receptor as an entry point to the cell. Cardiovascular disease (CVD) is a risk factor for the novel coronavirus disease (Covid-19) with poor outcomes. We hypothesized that the rate of ACE inhibitor (ACEI) and angiotensin receptor blocker (ARB) use is associated with the rate of Covid-19 confirmed cases and deaths.
Methods: We conducted a geospatial study using publicly available county-level data. The Medicare ACEI and ARB prescription rate was exposure. The Covid-19 confirmed case and death rates were outcomes. Spatial autoregression models were adjusted for the percentage of Black residents, children, residents with at least some college degree, median household income, air quality index, CVD hospitalization rate in Medicare beneficiaries, and CVD death rate in a total county population.
Findings: After adjustment for confounders, the ACEI use rate did not associate with Covid-19 confirmed case rate (direct county-own effect +0.11 %; 95%CI -0.31 to 0.53; P=0.600, and indirect spillover effect -0.53 %; 95%CI -3.89 to 2.84; P=0.760). The ARB use rate was associated with increased Covid-19 confirmed case rate (direct county-owned effect +0.12 %; 95%CI 0.05-0.19; P=0.002, and indirect spillover effect -0.33 %; 95%CI -2.11 to 1.44; P=0.714). Sensitivity analysis indicated an absence of significant reverse causality bias for analyses with Covid-19 confirmed case rate, but not death rate outcome.
Interpretation: Our results highlight the safety of ACEI use for patients with clinical indications for ACEI use. However, an increase in ARB use by 1% was associated with a 0.12 % increase in Covid-19 confirmed cases. The use of ARB, due to known ACE2 upregulation, may facilitate SARS-CoV-2 entry into target cells and increase infectivity. Cluster-randomized controlled trial is warranted to answer the question of whether the replacement of ARB by ACEI may reduce the Covid-19 confirmed case rate.
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http://dx.doi.org/10.1101/2020.05.31.20118802 | DOI Listing |
Eur J Med Chem
January 2025
Center of Excellence in Natural Products, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand. Electronic address:
The severe impact of COVID-19 on global health and economies highlights the critical need for innovative treatments. Recently, lapatinib, a drug initially used for breast cancer, has been identified as a potential inhibitor of the main protease (Mpro) of SARS-CoV-2, meriting further investigation. Utilizing rational design strategies and guided by MD simulations, we developed novel aminoquinazoline analogs based on fragmented lapatinib's structure.
View Article and Find Full Text PDFClinics (Sao Paulo)
January 2025
Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Background: Post-acute COVID-19 Syndrome (PACS) occurs in some COVID-19 patients long after acute infection and significantly affects patients' health. However, the mechanism by which PACS develops is unknown. Myosin light chain 9 (Myl9), produced by activated platelets, plays a role in immune dysregulation and microthrombi formation during acute COVID-19.
View Article and Find Full Text PDFRheumatology (Oxford)
January 2025
Department of Cell Biology and Immunology, Institute of Parasitology and Biomedicine López-Neyra, CSIC, Granada, Spain.
Objectives: COVID-19 and systemic sclerosis (SSc) share multiple similarities in their clinical manifestations, alterations in immune response, and therapeutic options. These resemblances have also been identified in other immune-mediated inflammatory diseases where a common genetic component has been found. Thus, we decided to evaluate for the first time this shared genetic architecture with SSc.
View Article and Find Full Text PDFBraz J Microbiol
January 2025
Center of Technological Development, Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil.
Adjuvants are crucial for maintaining specific, protective, and long-lasting immunity. Here, we aimed to evaluate the antigenic and immunogenic activity of a recombinant form of the S1 domain of the Spike protein, associated with biogenic silver nanoparticles (bio-AgNP) and Alhydrogel as an alternative and conventional adjuvant, respectively, for a SARS-CoV-2 subunit vaccine. We produced and evaluated the antigenicity of the recombinant S1 (rS1) protein by testing its recognition by antibodies present in SARS-CoV-2 positive human serum.
View Article and Find Full Text PDFFuture Cardiol
January 2025
BridgeBio Pharma, Inc., San Francisco, CA, USA.
Introduction: The 6-minute walk test (6MWT) is used to assess submaximal exercise capacity in clinical trials. Conducting the 6MWT can be challenging when patients cannot visit the clinic due to physical/travel limitations. This pilot study assessed the feasibility of conducting the 6MWT using wearable sensors for patients with transthyretin amyloid cardiomyopathy.
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