Related Experiment Video
Updated: Oct 26, 2025

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
Published on: May 5, 2022
Physical Exercise Training and Chagas Disease: Potential Role of MicroRNAs
Alex Cleber Improta-Caria1,2, Roque Aras Júnior1
1Programa de Pós-Graduação em Medicina e Saúde, Faculdade de Medicina, Universidade Federal da Bahia, Salvador, BA - Brasil.
Insights
This review explores microRNAs (miRNAs) in Chagas disease (CD) and how physical exercise training (PET) might alter them. Understanding these molecular changes could reveal new therapeutic targets for Chronic Chagas Cardiomyopathy (CCC).
Area of Science:
- Molecular Biology
- Cardiovascular Research
- Parasitology
Background:
- Chagas disease (CD), caused by Trypanosoma Cruzi, leads to Chronic Chagas Cardiomyopathy (CCC) through cardiac inflammation and remodeling.
- The molecular mechanisms underlying CD pathogenesis, particularly the role of microRNAs (miRNAs), remain poorly understood.
- miRNAs are key post-transcriptional gene regulators involved in various pathophysiological processes.
Purpose of the Study:
- To identify specific miRNAs implicated in Chagas disease.
- To explore the potential of physical exercise training (PET) to modulate miRNA expression in CD.
- To bridge the knowledge gap regarding the interplay between PET, miRNAs, and CD.
Main Methods:
- Literature review synthesizing existing evidence on miRNAs in Chagas disease.
- Analysis of studies investigating the effects of physical exercise training on miRNA expression in general.
- Identification of potential miRNA targets for therapeutic intervention in CD.
Main Results:
- Limited understanding exists regarding the specific miRNAs involved in Chagas disease pathophysiology.
- Physical exercise training (PET) is known to modulate miRNA expression in healthy individuals.
- Evidence linking PET to miRNA modulation specifically in Chagas disease patients is currently absent.
Conclusions:
- Further research is needed to elucidate the role of specific miRNAs in Chagas disease.
- Physical exercise training (PET) presents a potential non-pharmacological strategy to modulate disease-related miRNAs.
- Identifying miRNAs modulated by PET could pave the way for novel therapeutic approaches for Chronic Chagas Cardiomyopathy (CCC).
Abstract:
Chagas disease (CD) is caused by Trypanosoma Cruzi. This parasite can infect several organs of the human body, mainly the heart, causing inflammation, fibrosis, arrhythmias, and cardiac remodeling, promoting long-term Chronic Chagas Cardiomyopathy (CCC). However, little scientific evidence has elucidated the molecular mechanisms that govern the pathophysiological processes in this disease. MicroRNAs (miRNAs) are regulators of post-transcriptional gene expression that modulate signaling pathways, participating in pathophysiological mechanisms in CD, but the understanding of miRNAs in this disease is limited. On the other hand, a wide range of scientific evidence shows that physical exercise training (PET) modulates the expression of miRNAs by modifying different signaling pathways in healthy individuals. Some studies also show that PET is beneficial for individuals with CD; however, these did not evaluate the miRNA expressions. Thus, there is no evidence showing the role of PET in the expression of miRNAs in CD. Therefore, this review aimed to identify miRNAs expressed in CD that could potentially be modified by PET.
Related Concept Videos
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
MicroRNAs
MicroRNAs
Fungal Phylum Microsporidia
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...

