Figure 4.
Kinetics of leptin in sera from mice injected with 100 μg/kg of TNF or 1,000 U of IL-1, after a 7-h fast. All animals were food-deprived during the experimental period. Each point represents mean ± SEM leptin level of 5–6 mice, except for the 13-h points, which represent 10–14 mice. Compared with fasted controls, significant differences are indicated as *P <0.05.