Effect of neurohormonal therapeutic in left ventricle global and regional function in Chagas cardiomyopathy in a translational animal experimental model

Effect of neurohormonal therapeutic in left ventricle global and regional function in Chagas cardiomyopathy in a translational animal experimental model

Abstract Neurohormonal benefits of Chronic Chagas’ Cardiomyopathy (CCC) remain controversial. This study aimed to assess therapeutic interventions on CCC evolution in T. cruzi-infected hamsters at pre and post-treatment (2 months with beta-blocker (CH + BB) or ACE inhibitor (CH + ACEI)). Echocardiog...

Full description

Saved in:
Bibliographic Details
Main Authors: Denise Mayumi Tanaka, Beatriz de Paula Dias Zara, André Timoteo Sapalo, Arthur Lauand Vargas, José Antonio Marin-Neto, Antônio Carlos Leite de Barros-Filho, Cibele M. Prado Zinni, Keila Cardoso Barbosa Fonseca, Maykon Tavares de Oliveira, João Santana Silva, Felix Jose Alvarez Ramires, Maria de Lourdes Higuchi, Marcus Vinicius Simões, Minna Moreira Dias Romano
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
Subjects:
Chronic Chagas´ cardiomyopathy
Animal experimental model
Speckle tracking echocardiography
Neurohormonal treatment
Myocardial function
Online Access:https://doi.org/10.1038/s41598-025-96676-2
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Neurohormonal benefits of Chronic Chagas’ Cardiomyopathy (CCC) remain controversial. This study aimed to assess therapeutic interventions on CCC evolution in T. cruzi-infected hamsters at pre and post-treatment (2 months with beta-blocker (CH + BB) or ACE inhibitor (CH + ACEI)). Echocardiography was performed through evolution and compared to histopathological myocardial analysis. At post-treatment, a significant reduction of LV global systolic function and segmental function was observed between the control group and all Chagas’ groups. Compared to the Control, a reduction in LV regional strain was observed in three LV segments, regardless of treatment. No differences were observed in apoptosis, myocardial fibrosis, and the number of inflammatory cells among the groups. In an experimental model of CCC, LV global and regional function is compromised, and the treatment with ACEi and BB did not change LV remodeling. Regional LV function was slightly better in animals treated with BB, and this difference was not observed in the CH + ACEi group.
ISSN:2045-2322

Similar Items