Fig. 1.

Progesterone serum levels. Mean ± SEM of progesterone serum levels (ng/ml) in animals injected at birth with vehicle or capsaicin and subjected to SON sectioning. At 20 or 28 days of age, the animals were subjected to a sham-operation (SO) or left (L), right (R) or bilateral (B) SSON and then sacrificed at the first vaginal estrus. Significance was noted as indicated. ^a p <0.05 VEHICLE + SO vs. CAPSAICIN + SSON-L; −R at 20 days old, and VEHICLE + SO vs. CAPSAICIN + SSON-L; −R or -B, at 28 days of age, ANOVA test followed Tukey’s test. ^b p <0.05 VEHICLE + SSON-L vs. CAPSAICIN + SSON-L, at 20 days old, Student’s t test. ^c p <0.05 VEHICLE + SSON-R vs. CAPSAICIN + SSON-R, at 20 days old, Student’s t test. ^d p <0.05 VEHICLE + SO vs. VEHICLE + SSON-B, at 20 days of age, ANOVA test followed Tukey’s test