Brown fat temperature decrease by electrical stimulation of in and around retrorubral field in the golden hamster

摘要

Electrical stimulation (0.1 ms. 1 mA, 5-50 Hz) of the ventral midbrain of the golden hamster decreased frequency-dependent temperatures of the interscapular brown adipose tissue (IBAT) and rectum. The loci where electrical stimulation evoked continuous decrease in IBAT temperature during the stimulation for 5 min were localized in and around the retrorubral field. Results suggest that tonic inhibitory mechanism on BAT thermogenesis exists in the homologous region of the hamster brain to the rat brain in the previous study.