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Sökning: WFRF:(Jung Seungyoun) > (2017)

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1.
  • Fortner, Renée T., et al. (författare)
  • Anti-Mullerian hormone and endometrial cancer a multi-cohort study
  • 2017
  • Ingår i: British Journal of Cancer. - Nature Publishing Group. - 0007-0920 .- 1532-1827. ; 117:9, s. 1412-1418
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The Mullerian ducts are the embryological precursors of the female reproductive tract, including the uterus; anti-Mullerian hormone (AMH) has a key role in the regulation of foetal sexual differentiation. Anti-Mullerian hormone inhibits endometrial tumour growth in experimental models by stimulating apoptosis and cell cycle arrest. To date, there are no prospective epidemiologic data on circulating AMH and endometrial cancer risk. Methods: We investigated this association among women premenopausal at blood collection in a multicohort study including participants from eight studies located in the United States, Europe, and China. We identified 329 endometrial cancer cases and 339 matched controls. AntiMullerian hormone concentrations in blood were quantified using an enzyme-linked immunosorbent assay. Conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CI) across tertiles and for a doubling of AMH concentrations (ORlog2). Subgroup analyses were performed by ages at blood donation and diagnosis, oral contraceptive use, and tumour characteristics. Results: Anti-Mullerian hormone was not associated with the risk of endometrial cancer overall (ORlog(2): 1.07 (0.99-1.17)), or with any of the examined subgroups. Conclusions: Although experimental models implicate AMH in endometrial cancer growth inhibition, our findings do not support a role for circulating AMH in the aetiology of endometrial cancer.
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2.
  • Jung, Seungyoun, et al. (författare)
  • Demographic, lifestyle, and other factors in relation to antimullerian hormone levels in mostly late premenopausal women
  • 2017
  • Ingår i: Fertility and Sterility. - ELSEVIER SCIENCE INC. - 0015-0282. ; 107:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To identify reproductive, lifestyle, hormonal, and other correlates of circulating antimullerian hormone (AMH) concentrations in mostly late premenopausal women. Design: Cross-sectional study. Setting: Not applicable. Patient(s): A total of 671 premenopausal women not known to have cancer. Intervention(s): None. Main Outcome Measure(s): Concentrations of AMH were measured in a single laboratory using the picoAMH ELISA. Multivariable-adjusted median (and interquartile range) AMH concentrations were calculated using quantile regression for several potential correlates. Result(s): Older women had significantly lower AMH concentrations (>= 40 [n = 444] vs. < 35 years [n = 64], multivariable-adjusted median 0.73 ng/mL vs. 2.52 ng/mL). Concentrations of AMH were also significantly lower among women with earlier age at menarche (< 12 [n = 96] vs. >= 14 years [n = 200]: 0.90 ng/mL vs. 1.12 ng/mL) and among current users of oral contraceptives (n = 27) compared with never or former users (n = 468) (0.36 ng/mL vs. 1.15 ng/mL). Race, body mass index, education, height, smoking status, parity, and menstrual cycle phase were not significantly associated with AMH concentrations. There were no significant associations between AMH concentrations and androgen or sex hormone-binding globulin concentrations or with factors related to blood collection (e.g., sample type, time, season, and year of blood collection). Conclusion(s): Among premenopausal women, lower AMH concentrations are associated with older age, a younger age at menarche, and currently using oral contraceptives, suggesting these factors are related to a lower number or decreased secretory activity of ovarian follicles.
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