Hormonal
Genetic deletion of Acetyl-CoA Carboxylase 2 (ACC2) protects against obesity and type 2 diabetes induced by high-fat/high-carbohydrate diets by increasing fatty acid oxidation and preventing intracellular lipid accumulation.
This research suggests that the inability to oxidize fatty acids efficiently (due to high malonyl-CoA levels from ACC2 activity) is a key driver of diet-induced obesity and insulin resistance. While this specific genetic modification is not a human intervention, it highlights that strategies enhancing fatty acid oxidation or reducing malonyl-CoA levels could be therapeutic targets for preventing obesity and type 2 diabetes in individuals consuming high-fat/high-carbohydrate diets.
Acc2-/- mice fed high-fat/high-carbohydrate diets weighed less than their WT cohorts, accumulated less fat, and maintained normal levels of insulin and glucose, whereas the WT mice became type-2 diabetic with hyperglycemic and hyperinsulinemic status.
Why this rating
High-quality controlled animal study with clear phenotypic outcomes, though not directly translatable to humans without further validation.
Source
Acetyl-CoA carboxylase 2 mutant mice are protected against obesity and diabetes induced by high-fat/high-carbohydrate diets
Lutfi Abu-Elheiga et al. · Proceedings of the National Academy of Sciences · 2003
DOI 10.1073/pnas.1733877100
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