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Acute stress induces long-term metabolic, functional, and structural remodeling of the heart
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Acute stress induces long-term metabolic, functional, and structural remodeling of the heart
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Journal Article
Acute stress induces long-term metabolic, functional, and structural remodeling of the heart
2023
Overview
Takotsubo cardiomyopathy is a stress-induced cardiovascular disease with symptoms comparable to those of an acute coronary syndrome but without coronary obstruction. Takotsubo was initially considered spontaneously reversible, but epidemiological studies revealed significant long-term morbidity and mortality, the reason for which is unknown. Here, we show in a female rodent model that a single pharmacological challenge creates a stress-induced cardiomyopathy similar to Takotsubo. The acute response involves changes in blood and tissue biomarkers and in cardiac in vivo imaging acquired with ultrasound, magnetic resonance and positron emission tomography. Longitudinal follow up using in vivo imaging, histochemistry, protein and proteomics analyses evidences a continued metabolic reprogramming of the heart towards metabolic malfunction, eventually leading to irreversible damage in cardiac function and structure. The results combat the supposed reversibility of Takotsubo, point to dysregulation of glucose metabolic pathways as a main cause of long-term cardiac disease and support early therapeutic management of Takotsubo.
Takotsubo disease, a stress induced cardiomyopathy mimicking acute coronary syndrome, increases the risk of heart failure and cardiac death. The authors show here that heart function and structure keep on deteriorating continuously after a single acute stress, this snowball effect being triggered by abnormalities incardiac metabolism.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 13/51
/ 59
/ 59/57
/ 59/78
/ 82/58
/ 9/25
/ Animals
/ Cardiology and cardiovascular system
/ Female
/ Glucose-6-Phosphate - metabolism
/ Heart
/ Humanities and Social Sciences
/ Humans
/ Myocytes, Cardiac - metabolism
/ Myocytes, Cardiac - pathology
/ Positron emission tomography
/ Rats
/ Science
/ Stress, Psychological - complications
/ Structure-function relationships
