Fig. 10. Effects of hydrogen sulfide (H2S) inhalation on oxygen (O2) consumption ( circles ) in mice breathing H2S (80 ppm) for 30 min at ambient temperature (Ta) 27°C ( closed symbols , n = 3) or Ta35°C ( open symbols , n = 3), followed by a 30-min recovery period breathing air at Ta27° or 35°C, respectively. * P < 0.05 versus time 0. § P < 0.05 versus same time point in Ta27°C group.