Stroke and brain atrophy in chronic Chagas disease patients: A new theory proposition

Area of Science:

• Neurology
• Infectious Diseases
• Cardiology

Background:

• Chagas disease (CD) is a significant cause of stroke and cardiomyopathy globally.
• Current understanding attributes CD-related brain damage solely to cardiac complications like cardioembolism.
• However, stroke and brain atrophy occur in CD patients irrespective of cardiac disease severity.

Purpose of the Study:

• To present evidence for a new theory on Chagas disease-related brain damage.
• To explore the role of chronic inflammation in CD-induced neurological complications.
• To discuss potential mechanistically-based treatments for Chagas disease.

Main Methods:

• Review and synthesis of existing evidence.
• Analysis of pathological mechanisms linking inflammation to neurological damage.
• Consideration of therapeutic targets.

Main Results:

• Chronic inflammation against T. cruzi may independently cause endothelial damage and platelet activation.
• Inflammation can accelerate atherosclerosis and apoptosis, contributing to stroke and brain atrophy.
• These inflammatory pathways offer an alternative explanation for neurological damage in Chagas disease.

Conclusions:

• Chagas disease may cause brain damage through direct inflammatory mechanisms, not solely cardiac issues.
• Targeting chronic inflammation presents a novel therapeutic strategy for preventing stroke and brain atrophy in CD.
• Further research is needed to validate these inflammatory pathways and develop targeted treatments.