The effect of cigarette smoking use and cessation on serum insulin-like growth factors.
AffiliationDepartment of Surgery, Christie Hospital NHS Trust, Wilmslow Road, Manchester M20 4BX, UK. firstname.lastname@example.org
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AbstractThe patterns of risk association between circulating levels of insulin-like growth factor (IGF)-I, and its main binding protein, IGFBP-3, differ between smoking and nonsmoking-related cancers. To investigate this observation further, we measured serum IGF-I, IGF-II and IGF-binding protein-3 concentrations in 232 men and 210 women (aged 55-64 years), and related peptide levels to smoking characteristics. Current smoking was associated with significant reductions in mean IGFBP-3 levels in men assessed by the number of cigarettes smoked daily (P(trend)=0.007) and pack-years smoked (P(trend)=0.03). Mean IGF-I levels decreased with increasing cigarette use in men (P(trend)=0.11). There were no patterns of association between smoking and IGF peptides in women. For male former vs never smokers, there were no differences in mean IGF-I and IGFBP-3 concentrations, suggesting that smoking cessation is associated with normalisation of peptide concentrations.
CitationThe effect of cigarette smoking use and cessation on serum insulin-like growth factors. 2004, 91 (8):1525-31 Br. J. Cancer
JournalBritish Journal of Cancer
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