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Published in: Journal of Cardiovascular Translational Research 5/2020

01-10-2020 | Myocardial Infarction | Original Article

Intra-myocardial Delivery of a Novel Thermosensitive Hydrogel Inhibits Post-infarct Heart Failure After Degradation in Rat

Authors: Ying Wen, Xiao-yan Li, Ze-yong Li, Meng-long Wang, Pan-pan Chen, Yang Liu, Xian-zheng Zhang, Xue-jun Jiang

Published in: Journal of Cardiovascular Translational Research | Issue 5/2020

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Abstract

Whether intra-myocardial delivery of hydrogel can prevent post-infarct heart failure (HF) in a long follow-up period, especially after it is degraded, remains unclear. In this study, Dex-PCL-HEMA/PNIPAAm (DPHP) hydrogel was delivered into peri-infarct myocardium of rat when coronary artery was ligated, while PBS was employed as control. Twelve weeks later, compared with control, left ventricle remodeling was attenuated and cardiac function was preserved; serum brain natriuretic peptide, cardiac aldosterone, and pulmonary congestion were suppressed in hydrogel group. Pro-fibrogenic mRNA increased in infarct area while decreased in remote zone, as well as hypertrophic mRNA. These data proves DPHP hydrogel suppresses ventricular remodeling and HF by promoting fibrotic healing in infarct area and inhibiting reactive fibrosis and hypertrophy in remote zone. Timely intra-myocardial hydrogel implantation is an effective strategy to inhibit post-infarct cardiac remodeling and have a long-term beneficial effect even after it has been biodegraded.
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Metadata
Title
Intra-myocardial Delivery of a Novel Thermosensitive Hydrogel Inhibits Post-infarct Heart Failure After Degradation in Rat
Authors
Ying Wen
Xiao-yan Li
Ze-yong Li
Meng-long Wang
Pan-pan Chen
Yang Liu
Xian-zheng Zhang
Xue-jun Jiang
Publication date
01-10-2020
Publisher
Springer US
Published in
Journal of Cardiovascular Translational Research / Issue 5/2020
Print ISSN: 1937-5387
Electronic ISSN: 1937-5395
DOI
https://doi.org/10.1007/s12265-019-09941-x

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