939-Hypothalamic Leptin Receptors Counteract Anxiety

Paper Talk · May 9, 2026 · 23m

This research identifies a specific group of leptin-sensitive neurons in the lateral hypothalamus (LepRLH) that helps animals overcome anxiety to perform essential survival behaviors. Using single-cell imaging and circuit manipulation in mice, scientists discovered that these neurons are activated by anxiogenic stimuli, such as open spaces or food in unfamiliar environments, to facilitate exploration and eating. The study reveals that prefrontal cortex inputs can inhibit these neurons, particularly in high-anxiety individuals, potentially leading to maladaptive responses. Furthermore, the…