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Heart failure and diabetes: role of ATM
Mary C Wingard1, Chad R Frasier1, Mahipal Singh1
1Department of Biomedical Sciences, James H Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA.
Insights
Diabetes Mellitus (DM) and Ataxia Telangiectasia Mutated kinase (ATM) deficiency share metabolic and cardiac issues, increasing heart failure risk. This review details these connections.
Area of Science:
- Cardiology
- Metabolic Disorders
- Genetics
Background:
- Heart failure is a major cause of death in the US.
- Diabetes Mellitus (DM) significantly elevates heart failure risk.
- DM-induced oxidative stress and metabolic dysfunction contribute to diabetic cardiomyopathy.
Purpose of the Study:
- To review shared metabolic and cardiac abnormalities in DM and ATM deficiency.
- To focus on the development of heart failure in these conditions.
Main Methods:
- Literature review of studies on diabetes, ATM kinase, and heart failure.
- Analysis of molecular mechanisms linking metabolic dysfunction, DNA damage, and cardiac issues.
Main Results:
- ATM deficiency is linked to insulin resistance and DM.
- ATM plays a role in DNA repair and acts as a redox sensor.
- Patients with Ataxia telangiectasia have a higher risk of heart failure.
Conclusions:
- Shared pathways exist between DM and ATM deficiency concerning metabolic and cardiac health.
- Understanding these links can inform strategies to prevent heart failure in at-risk populations.
Abstract:
Heart failure is a leading cause of death in the United States. Diabetes, also known as diabetes mellitus (DM), exponentially increases the risk of heart failure. The increase in oxidative stress and metabolic dysfunction caused by DM can lead to DNA damage and the development of diabetic cardiomyopathy. Ataxia telangiectasia mutated kinase (ATM) is a DNA damage response protein with a primary nuclear function to regulate cell cycle progression in response to double-strand DNA breaks, acts as a redox sensor, and facilitates DNA repair. ATM deficiency associates with the development of insulin resistance and DM. Consequently, patients with Ataxia telangiectasia, a rare autosomal recessive disorder, have an increased risk of developing heart failure. The main objective of this review is to summarize the shared metabolic and cardiac abnormalities associated with DM and ATM deficiency, with a focus on the development of heart failure.
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