Table 1.

Mean level of Opn transcript expression in different groups

Groups	Specific (mean ± SEM)	Normalized (mean ± SEM)
Control	0.35	1
Sham	0.29 ± 0.12	0.83 ± 0.35
Diabetic	10.99 ± 4.17	30.70 ± 11.65
Pioglitazone treated	0.19 ± 0.08	0.55 ± 0.22
Metformin treated	15.08 ± 6.83	42.11 ± 19.07