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The expression of LGR-7 in the endometriotic lesion. Endometriotic stromal cells (ESCs) were obtained from three endometriomas and analyzed by conventional PCR for the mRNA expression of LGR-7, a receptor of relaxin (RLX)-2, and GAPDH (a). The expression of LGR-7 protein detected by immunohistochemistry in endometriomas is shown. Arrowheads indicated the expression of LGR-7 in stromal cells (▲) and epithelial cells (△). Rabbit IgG was used as a negative control (b).
