Figure 1.
KOR activation evokes BAT thermogenesis, hyperthermia, and tail vasodilation
(A) Quantitative thermal images of BAT, eye, and tail at 0, 50, 70, and 90 min after i.p. administration of 5 mg/kg U50, 488H (U50) in wild-type mice.
(B–D) Quantified data for eye, BAT, and tail temperatures after pretreatment with saline or 10 mg/kg naltrexone hydrochloride i.p., then 30 min later 5 mg/kg U50 (n = 10).
(E) Thermal images of eye, BAT, and tail at 0, 50, 70, and 90 min in Oprk1−/− animals after administration of 5 mg/kg U50 i.p.
(F–H) Quantified thermal imaging of eye, BAT, and tail in Oprk1−/− animals. All data are presented as mean ± SEM (n = 5).
