Table 2. Relative estrogen and progesterone receptor messenger ribonucleic acid (mRNA) levels.

Tissues	Patients
	Estriol-treated group n = 14	Control group n = 13
	ER (IOD ER/IODb2m)
Endometrium*	1.24 ± 0.04	0.57 ± 0.06
Myometrium	0.64 ± 0.06	0.58 ± 0.07
Vagina*	0.97 ± 0.04	0.48 ± 0.04
	PR (IOD PR/IODb2m)
Endometrium*	0.079 ± 0.008	0.032 ± 0.003
Myometrium	0.057 ± 0.004	0.036 ± 0.004
Vagina	0.050 ± 0.011	0.061 ± 0.006

*statistically significant differences. ER = estrogen receptor; PR = progesterone receptor; IOD = integrated optical density; β2m = beta-2 microglobulin