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Updated: May 30, 2025

Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model
Published on: November 29, 2024
Understanding Diabetic Cardiomyopathy: Insulin Resistance and Beyond
Aditya John Binu1, Nitin Kapoor2,3
1Department of Cardiology, Christian Medical College & Hospital, Vellore, Tamil Nadu, India.
Insights
Diabetic cardiomyopathy (DC) is an underdiagnosed heart condition in diabetes mellitus (DM). Understanding its molecular mechanisms, including inflammation and insulin resistance, is key to developing new diagnostic and treatment strategies.
Area of Science:
- Cardiology
- Endocrinology
- Molecular Biology
Background:
- Diabetic cardiomyopathy (DC) is a heart failure syndrome in diabetes mellitus (DM) patients, independent of other risk factors.
- DC is often underdiagnosed due to a prolonged subclinical phase.
- Numerous studies investigate the pathogenic mechanisms underlying DC.
Purpose of the Study:
- To review and summarize current medical literature on the molecular mechanisms, signaling and metabolic abnormalities, and structural/functional changes in DC.
- To elucidate postulated pathogenic mechanisms of DC beyond insulin resistance.
Main Methods:
- Conducted a literature search using terms like 'diabetic cardiomyopathy' and 'heart failure AND Diabetes mellitus'.
- Reviewed reference lists of included studies and relevant systematic reviews.
Main Results:
- Elucidated various postulated mechanisms in DC pathogenesis, including insulin resistance, inflammation, renin-angiotensin-aldosterone system activation, and disrupted protein homeostasis.
- Summarized molecular, signaling, metabolic, structural, and functional abnormalities associated with DC.
Conclusions:
- Diabetic cardiomyopathy is an underrecognized cardiac complication of diabetes mellitus.
- Comprehensive knowledge of DC pathways and mediators can facilitate the development of diagnostic/prognostic markers, screening protocols, and novel therapies.
Abstract:
Background: Diabetic cardiomyopathy (DC) is a syndrome of heart failure occurring in patients with diabetes mellitus (DM), independent of other risk factors. It is a relatively underdiagnosed condition with a prolonged subclinical phase. There is an abundance of studies put forward to explain the underlying pathogenic mechanisms observed in this condition. This review aims to summarize the evidence available in contemporary medical literature with regard to the molecular mechanisms, abnormalities in signalling and metabolism and structural and functional abnormalities manifesting as DC. Methods: We conducted a literature search using the terms 'diabetic cardiomyopathy', 'heart failure AND Diabetes mellitus', 'Cardiomyopathy AND Diabetes mellitus'. We searched the reference lists of included studies and relevant systematic reviews. Results: In this review, we elucidate all the mechanisms that have been postulated to have a role in the pathogenesis of DC, in addition to insulin resistance, such as inflammation, renin-angiotensin-aldosterone system activation and deranged protein homeostasis. Conclusions: DC is an underrecognized cardiac complication of DM. A comprehensive knowledge of all the pathways and mediators will aid in the development of diagnostic and prognostic markers, screening protocols and novel management strategies.
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