Abstract
Background
Vitamin D may influence circulating levels of sex steroid hormones in women during reproductive life, but associations in pregnant women have not been explored.
Methods
Correlation and linear regression models were used to assess the association between sex steroids, (estradiol, progesterone, 17-hydroxyprogesterone, testosterone, and androstenedione), IGF-1, and serum 25-hydroxyvitamin D (25-OHD) concentrations during the first trimester of pregnancy in 106 cancer-free women from the Finnish Maternity Cohort.
Results
There was no significant association of serum 25-OHD with any of the hormones measured. One-unit increase in serum 25-OHD concentration was associated with a non-significant 6% increase in estradiol concentrations. Multiparous women had higher levels of vitamin D (40.4 vs. 32.9 nmol/L, p-value = 0.01) than primiparous women.
Conclusion
Our study does not support an association between maternal serum 25-OHD levels and sex steroids or IGF-I concentrations during the first trimester of pregnancy.
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Acknowledgments
Supported by grant number CA120061 from the US National Cancer Institute. Adetunji T Toriola was supported by an EACR (European Association for Cancer Research) Travel Fellowship Award to visit the Department of Cancer Epidemiology, German Cancer Research Centre, Heidelberg.
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Toriola, A.T., Surcel, HM., Husing, A. et al. Association of serum 25-hydroxyvitamin D (25-OHD) concentrations with maternal sex steroids and IGF-1 hormones during pregnancy. Cancer Causes Control 22, 925–928 (2011). https://doi.org/10.1007/s10552-011-9752-5
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DOI: https://doi.org/10.1007/s10552-011-9752-5