Objective To explore the effect of impaired leptin-Stat3 in nucleus accumbens on the metabolism and body mass of Lasiopodomys brandtii. Methods Inhibitor of Jak/Stat3( WP1066) was injected into the nucleus accumbens of L. brandtii,and then the basic metabolism was tested by TSE metabolic cage system followed by monitoring the body mass.Results Jak/Stat3 could significantly decrease the levels of P-Stat3 and leptin in nucleus accumbens( P < 0. 05). However,there was no significant difference in the levels of...