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[Expression of miR23b and Sp1 in ovarian endometriosisand their clinic significance].

OBJECTIVE
To investigate the expressions of miR23b and Sp1 in ovarian endometriosis and their clinic significance.  Methods: qPCR was used to detect the expression of miR23b and Sp1 mRNA in paired ectopic/eutopic and normal endometrium. Immunohistochemistry and Western bolt were used to determine the expression and distribution of Sp1 in paired ectopic/eutopic and normal endometrium. The association of miR23b and Sp1 with the endometriosis was analyzed.  Results: MiR23b mRNA expression in paired ectopic/eutopic and normal endometrium was gradually increased (P<0.05). Sp1 protein mainly distributed in the nucleus of endometrial glandular epithelial and stromal cells, with a little or without expression in cytoplasm. Sp1 mRNA and protein expression in paired ectopic/eutopic and normal endometrium was gradually reduced (P<0.05). Pearson correlation analysis showed that miR23b was negatively correlated with Sp1 (r=-0.526, P<0.05).  Conclusion: MiR23b and Sp1 are involved in the pathogenesis of ovarian endometriosis, which may facilitate the formation of ectopic lesions.