Myocardial lipid accumulation and lipotoxicity in heart failure

Myocardial lipid accumulation in the diabetic heart.

The prevalence of type 2 diabetes mellitus is rising in the United States, with a recent estimate suggesting that 7% of the US population (or 21 million persons) have the disease.1 In addition to well-recognized contributions to coronary artery disease risk, the metabolic derangement of diabetes also can result in abnormalities of cardiac function (diabetic cardiomyopathy) that are likely indep...

Hodgkin’s Lymphoma Presenting with Myocardial Metastasis and Heart Failure

Although involvement of the heart by malignant lymphoma is relatively common, it is unusual to be detected premortem. We report a case of Hodgkin's lymphoma who presented with systemic signs and symptoms including abdominal distension, weakness, pallor, chills and fever, hepatosplenomegaly and generalize...

Dietary fat and heart failure: moving from lipotoxicity to lipoprotection.

There is growing evidence suggesting that dietary fat intake affects the development and progression of heart failure. Studies in rodents show that in the absence of obesity, replacing refined carbohydrate with fat can attenuate or prevent ventricular expansion and contractile dysfunction in response to hypertension, infarction, or genetic cardiomyopathy. Relatively low intake of n-3 polyunsatu...

Lipotoxicity in the heart.

Cardiomyopathy is associated with both rare genetic metabolic abnormalities and highly prevalent diseases characterized by elevated serum triglycerides and nonesterified fatty acids, such as obesity and type 2 diabetes. In these disorders, an imbalance between fatty acid uptake and utilization leads to the inappropriate accumulation of free fatty acids and neutral lipids within cardiomyocytes. ...

Lipotoxicity in myocardial infarction and heart failure. Importance of endogenous lipoproteins for cardiac function, structure and arrhythmias