FATTY-ACID COMPOSITION OF BROWN ADIPOSE-TISSUE IN DIETARY OBESE RATS

The effects of both dietary obesity and a food deprivation period of 2 4 hours on fatty acid composition of brown adipose tissue have been in vestigated. Long time exposure to a hypercaloric high-fat diet such as the cafeteria diet induced an important tissue fatty acid accumulatio n, mainly for the major saturated and monounsaturated fatty acids. Not able metabolic differences have been observed in the behaviour of cont rol and obese rats facing a food deprivation period: a preferential ut ilization of the most abundant saturated fatty acids in control rats a nd a minor response in obese rats, with a greater fat accumulation in the interscapular brown adipose tissue.