Influence of the CYP17 polymorphism on vasomotor symptoms in postmenopausal women: a pilot study

Date
2011-10-01Author
Nogueira Júnior, Roberto Cesar [UNIFESP]
Costa, Ana Maria Massad [UNIFESP]
Silva, Ismael Dale Cotrim Guerreiro da [UNIFESP]
Carvalho, Cristina Valletta de [UNIFESP]
Maganhin, Carla Cristina [UNIFESP]
Baracat, Edmund Chada [UNIFESP]
Soares Júnior, José Maria [UNIFESP]
Type
ArtigoISSN
1369-7137Is part of
ClimactericDOI
10.3109/13697137.2010.548668Metadata
Show full item recordAbstract
Objective To evaluate the influence of CYP17 polymorphism on menopausal symptoms after estrogen treatment.Methods A total of 130 women were recruited, but only 100 of these were selected according to inclusion and exclusion criteria; they were treated with 0.3 mg/day conjugated equine estrogens. One year later, the study was completed by 71 women. the analysis of the Kupperman menopausal index symptoms was made with information provided by the patients on daily diary cards. Blood samples were analyzed and the women were divided into two groups based on the CYP17, 5'-untranslated region: group A (wild-type homozygote and heterozygote) and group B (mutated homozygote).Results the values for the Kupperman menopausal index were similar in both groups at baseline. the symptoms in both groups decreased after 1 year of treatment when compared to those at baseline. the improvement rate was approximately 27.09% and 32.18%, in groups A and B, respectively. the levels of estrogen after treatment were higher in both groups in comparison with the baseline values. the testosterone level rose in group B with the 1-year treatment (0.48 +/- 0.16 ng/ml), reaching a higher level than the level in group A after treatment. the sex hormone binding globulin (SHBG) level showed a significant increase after the 1-year treatment in group B, surpassing both the baseline and the after-treatment values in group A (p < 0.01).Conclusion Our data suggest that the CYP17 polymorphism did not influence the action of estrogen on menopause symptoms during the 1-year treatment. the extra production of estrogen and androgen may have been countered by the elevation of SHBG levels.
Citation
Climacteric. London: Informa Healthcare, v. 14, n. 5, p. 537-543, 2011.Keywords
PolymorphismCYP17
Estrogen
Hot flushes
Sponsorship
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Collections
- EPM - Artigos [17701]
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