Genetic Variability in IGF-1 and IGFBP-3 and Body Size in Early Life

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Genetic Variability in IGF-1 and IGFBP-3 and Body Size in Early Life

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Title: Genetic Variability in IGF-1 and IGFBP-3 and Body Size in Early Life
Author: Poole, Elizabeth M.; Tworoger, Shelley Slate; Hankinson, Susan Elizabeth; Baer, Heather Joanne

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Citation: Poole, Elizabeth M., Shelley Slate Tworoger, Susan Elizabeth Hankinson, and Heather Joanne Baer. 2012. Genetic variability in IGF-1 and IGFBP-3 and body size in early life. BMC Public Health 12:659.
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Abstract: Background: Early life body size and circulating levels of IGF-1 and IGFBP-3 have been linked to increased risks of breast and other cancers, but it is unclear whether these exposures act through a common mechanism. Previous studies have examined the role of IGF-1 and IGFBP-3 genetic variation in relation to adult height and body size, but few studies have examined associations with birthweight and childhood size. Methods: We examined whether htSNPs in IGF-1 and the IGFBP-1/IGFBP-3 gene region are associated with the self-reported outcomes of birthweight, body fatness at ages 5 and 10, and body mass index (BMI) at age 18 among healthy women from the Nurses’ Health Study (NHS) and NHSII. We used ordinal logistic regression to model odds ratios (ORs) and 95% confidence intervals (CI) of a one category increase for birthweight and somatotypes at ages 5 and 10. We used linear regression to model associations with BMI at age 18. Results: Among 4567 healthy women in NHS and NHSII, we observed no association between common IGF-1 or IGFBP-1/IGFBP-3 SNPs and birthweight, body fatness at ages 5 and 10, or BMI at age 18. Conclusions: Common IGF-1 and IGFBP-1/IGFBP-3 SNPs are not associated with body size in early life.
Published Version: doi:10.1186/1471-2458-12-659
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3508796/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10591712
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