Why the study?
TLR4 is upregulated in diabetic cardiomyocytes and its role in modulating cardiac fatty acid metabolism and diabetic heart disease pathogenesis was unclear.
Does TLR4 deficiency reduce cardiac lipid accumulation and improve cardiac function in a mouse model of type 1 diabetes?
Population
Nonobese diabetic (NOD) mice and H9C2 cardiomyocytes
Comparison
TLR4-deficient NOD mice vs wild-type NOD mice; TLR4 siRNA vs control in H9C2 cells
Design
Preclinical experimental study
Key result
TLR4 deficiency in nonobese diabetic mice attenuated cardiac triglyceride accumulation and mitigated the impairment of cardiac function in the early stages of diabetes compared with wild-type mice.
Authors
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TLR4 may be a target in diabetic cardiomyopathy models; leaves open translation to human disease or therapy.
Does TLR4 deficiency reduce cardiac lipid accumulation and improve cardiac function in a mouse model of type 1 diabetes?
TLR4 deficiency attenuates cardiac lipid accumulation and preserves cardiac function in a mouse model of type 1 diabetes, suggesting TLR4 as a potential therapeutic target for diabetic cardiomyopathy.
Dong et al. (2012) studied Type 1 diabetes and diabetic heart disease. TLR4 deficiency vs. Wild-type (WT) NOD mice was evaluated on Cardiac lipid accumulation and cardiac function. TLR4 deficiency in nonobese diabetic mice attenuated cardiac triglyceride accumulation and mitigated the impairment of cardiac function in the early stages of diabetes compared with wild-type mice.
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