Table 1.

Serological dates of the young, adult and senile female Mongolian gerbil (n = 15/age)

Serological data
	Ages
Hormones	Young	Adult	Senile
Dehydroepiandrosterone (DHEA) (ng/ml)*	2.16 ± 0.1a	2.66 ± 0.3a	1.52 ± 0.1b
Testosterone (T) (ng/ml)*	0.60 ± 0.08a	1.48 ± 0.5a	0.18 ± 0.05b
Oestrogen (E) (pg/ml)	22.50 ± 1.6	25.02 ± 2.9	18.56 ± 2.0
T/E ratio	0.027 ± 0.005	0.06 ± 0.1	0.01 ± 0.028
T/DHEA ratio	0.28 ± 0.78	0.56 ± 1.6	0.12 ± 0.35

Values represent mean ± SD and asterisks represent statistically significant differences between the ages (P ≤ 0.05). Superscript letters (^a,b) represent statistically significant differences between the ages. Statistical analysis based on the anova and Tukey Tests. Ratio between the serum levels of T/DHEA and T/E in relation to the ages of postnatal development is showed (Mean ± SD).