Does the estrogen receptor gene polymorphism relate to undefined menopausal symptoms?
The present study examines the relationship between estrogen receptor ( ER) gene polymorphism and undefined complaints to clarify the aging process of the genitospinal center. Pvu II and Xba I restriction fragment length polymorphism (RFLP) of the estrogen receptor ( ER) gene and its relationships to undefined symptoms was examined in 507 Japanese peri- and postmenopausal women who were classified in 3 groups by serum estradiol (E2) values; group A:E2>30 pg/ml; group B:E210-30 pg/ml; group C:E2<10 pg/ml. The percentage of women grouped A was significantly higher than that of group B in genotype Pp. Furthermore, the frequency of Ppxx in group A was significantly higher than that of group B or C. On the other hand, the frequency of ppxx in group A was significantly lower than that of group B (p=0.0042) or C (p=0.049). Neither FSH nor LH differed significantly between Ppxx and ppxx. On the other hand, the plasma estradiol level differed significantly between Ppxx and ppxx (p=0.0004). Moreover, a higher incidence of mental symptoms was observed in group A than in groups B or C (p<0.01). The present results suggest that ER gene polymorphism influences aging of the genitospinal center, and may explain in part the pathophysiology and cause of undefined perimenopausal complaints.[1]References
- Does the estrogen receptor gene polymorphism relate to undefined menopausal symptoms? Ushiroyama, T., Heishi, M., Ikeda, A., Ueki, M. Res. Commun. Mol. Pathol. Pharmacol. (2001) [Pubmed]
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