Findings in Anxiety Disorders Reported from Federal University Santa Maria [Sex-dependent Behavioral and Hypothalamic Receptor Changes After Early-life Monosodium Glutamate (Msg) Exposure and Adult Social Stress In Wistar Rats].

This article focuses on research from the Federal University of Santa Maria in Brazil investigating the effects of social-single prolonged stress (social-SPS) on anxiety-like behavior and eating patterns in male and female Wistar rats with early-life obesity induced by monosodium glutamate (MSG). The study found that MSG exposure and social-SPS independently and combined reduced food intake and induced anxiety-like behavior primarily in female rats, with sex-dependent changes in hypothalamic receptor protein expression related to leptin, ghrelin, and dopamine receptors. These findings suggest that social stress influences behavioral and molecular responses differently in males and females within an early-life obesity model. The research highlights the complex interaction between stress, obesity, and psychiatric symptoms in a controlled animal model. [Extracted from the article]