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The mechanisms by which stroke and myocardial infarction trigger lymphocyte loss remain poorly defined. This study shows that the release of neutrophil extracellular traps (NETs) after stroke and myocardial infarction triggers B cell apoptosis and reduces the number of IgA-producing plasma cells. Therapeutic targeting of NETs is immunoprotective in mice and humans.
Motivated by a CRISPR screen, in vitro and in vivo studies identified an essential role for the bromodomain and extraterminal domain (BET) family member BRD4 in the differentiation of second heart field progenitors into cardiomyocytes. Single-cell transcriptomic studies showed that BRD4 deficiency affects a specific subset of cardiac progenitor cells.
Cardiometabolic multimorbidity — the coexistence of type 2 diabetes, ischemic heart disease or stroke — is a growing clinical and public health challenge. Accelerated biological aging, measured by clinical traits, provides innovative clues into subclinical prevention of cardiometabolic multimorbidity and mortality among older adults.
Myocardial infarction causes endoplasmic reticulum (ER) stress, thereby triggering the release of a set of poorly defined growth factors. A study shows that the growth factor CRELD2 is secreted in response to ER stress and is required for preserving heart function after myocardial infarction in mice.
