Fig 2: Differential effect of long-term ANDRO administration in the hippocampal presynaptic protein of adult and aged female degus. Densitometric analysis of presynaptic proteins: (A) SYP and (B) SYT of adult (36 months old) and aged (72 months old) control (C) and ANDRO (A) female degus. Data were analyzed statistically using one-way ANOVA, with the p-value indicated at the top of each figure. Different letters above bars show statistical differences between the same protein across the ANDRO treatments (Fisher’s LSD post hoc test). Results are expressed as mean ± SE (n = 3); a.u: arbitrary units.