Figure 2

Gene expression of hippocampal electron transport chain subunits and bioenergetics regulators during endocrinological and chronological aging. Panel (a), nuclear encoded OXPHOS genes; (b), mitochondrial encoded OXPHOS genes; (c), expression of mitochondrial transcriptional factors, RNA polymerase POLRMT and DNA polymerase POLG; (d), gene expression of key bioenergetics regulators. *p < 0.05 in comparison to the previous column.