The n-3 and n-6 polyunsaturated fatty acids (PUFAs) have been shown to modify central serotonergic parameters relevant to ingestive behavior. Evidence suggests an association between the 5-HT2C receptor and fat intake. The present research sought to examine the role of the 5-HT2C receptor subtype on food intake when diets with different fatty acid compositions are consumed. The effects of 1-(3-chlorophenyl)piperazine (mCPP) on consumption of both low-fat (Experiment 1) and high-fat diets (Experiment 2) differing in their predominant PUFA profiles were compared in rats. Regardless of the PUFA profile, mCPP induced hypophagia within each experiment. Although the present results lend further support to a large body of evidence demonstrating the ability of mCPP to reduce food intake, they do not support the idea that the essential fatty acid composition of the diet can differentially modulate mCPP-induced hypophagia.
All Science Journal Classification (ASJC) codes
- Clinical Biochemistry
- Biological Psychiatry
- Behavioral Neuroscience