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  • Title: Gonadotropin-releasing hormone receptor expression in endometrial cancer.
    Author: Jeon YT, Kim YB, Park SY, Kim JW, Park NH, Kang SB, Song YS.
    Journal: Int J Gynecol Pathol; 2009 Jan; 28(1):19-22. PubMed ID: 19047913.
    Abstract:
    Several studies have previously reported the expression of the gonadotropin-releasing hormone receptor (GnRHr) in cases of endometrial cancer. However, the relationship between GnRHr expression and a variety of clinicopathologic parameters remains unclear. This study was conducted with 141 endometrial cancer patients, all of whom had undergone operations between 1993 and 2002. Paraffin-embedded tissue blocks were sectioned and immunostained with monoclonal anti-GnRHr antibody. Clinicopathologic variables were also evaluated, with 10% cutoff values for GnRHr positivity. Seventy specimens (49.6%) stained as GnRHr-positive. Mean parity was higher in the patients with GnRHr-positive tumors than those with GnRHr-negative tumors (2.50+/-1.92 versus 1.82+/-1.37, P=0.016). Body mass indices were also higher in the patients with GnRHr-positive tumors (26.6+/-4.6 versus 24.7+/-4.2, P=0.010). However, GnRHr positivity was not determined to be statistically significantly associated with any other clinicopathologic characteristics, including age, menopausal status, histotype, disease stage, tumor differentiation, lymph node metastasis, and myometrial invasion. The results of this study, although they may require further investigation, suggested that obese and multiparous women with endometrial cancer might be greatly influenced by endogenous gonadotropin-releasing hormone and/or exogenous gonadotropin-releasing hormone analogs.
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