COVID-19 Clinical Trial
Official title:
Evaluation of Myocardial Dysfunction Due to mRNA-based SARS-CoV-2 Vaccines
The overall goal of the study is to investigate the characteristics and potential mechanisms responsible for myocardial injury and dysfunction in patients after COVID-19 vaccination. Cardiac damage will be assessed with cardiac MRI and endomyocardial biopsy (EmBx) histopathology. Myocardial gene expression will be measured in RNA extracted from EmBxs mRNA abundance compared to nonfailing and failing control hearts.
To determine whether there is microvascular thrombosis-associated myocardial damage and dysfunction vs. inflammation or other changes in patients who, following administration of SARS-CoV-2 mRNA vaccine, develop evidence of myocardial injury typically diagnosed as "myocarditis" based on cardiac MRI findings. Further, the degree of inflammatory reaction vs. microthrombotic injury to cardiac myocytes from biopsied myocardial tissue will be compared with biopsied myocardial tissue from control hearts. mRNA expression of the ACE2 and ITGA5 binding targets of SARS-Cov-2 Spike protein encoded by mRNA vaccines, as well as expression of other genes that may contribute to post-vaccine pro-thrombotic and pro-inflammatory states including Coagulation Factor 3 (F3, also known as tissue factor), ACE, AGTR1 and AGT) or a dysfunctional cardiac state (NPPB as a marker of pathologic remodeling) will be examined as candidate genes. Additional, global gene expression is being measured by RNA-Seq and microarray. ;
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