Hair corticosterone (mean ± SEM) for diabetic and non-diabetic control mice. A) Mice injected with Veh or STZ: Day 0 (Veh n = 11, STZ n = 11), Day 28 old hair growth (Veh n = 11, STZ n = 10), Day 28 new hair growth (Veh n = 9, STZ n = 8), and B) db/+ non-diabetic db/db diabetic mice: Day 0 (db/+ n = 7, db/db n = 8), Day 28 old hair growth (db/+ n = 7, db/db n = 7), Day 28 new hair growth (db/+ n = 8, db/db n = 7). Groups (STZ and Veh, db/+ and db/db) were statistically compared by two-way ANOVA. Ampersand indicates significant difference compared to corresponding control group (&&& p < 0.001). Number sign indicates significant difference between new and old hair growth at day 28 (### p < 0.001). Asterisks indicate significant difference between day 0 and day 28 new hair growth (*p < 0.05, ***p < 0.001).