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- Title
Relationship between dietary carbohydrates intake and circulating sex hormone‐binding globulin levels in postmenopausal women.
- Authors
Huang, Mengna; Liu, Jinjie; Lin, Xiaochen; Goto, Atsushi; Song, Yiqing; Tinker, Lesley F.; Chan, Kei‐hang Katie; Liu, Simin
- Abstract
Abstract: Background: Low circulating levels of sex hormone‐binding globulin (SHBG) have been shown to be a direct and strong risk factor for type 2 diabetes, cardiovascular diseases, and hormone‐dependent cancers, although the relationship between various aspects of dietary carbohydrates and SHBG levels remains unexplored in population studies. Methods: Among postmenopausal women with available SHBG measurements at baseline (n = 11 159) in the Women's Health Initiative, a comprehensive assessment was conducted of total dietary carbohydrates, glycemic load (GL), glycemic index (GI), fiber, sugar, and various carbohydrate‐abundant foods in relation to circulating SHBG levels using multiple linear regressions adjusting for potential covariates. Linear trend was tested across quartiles of dietary variables. Benjamini and Hochberg's procedure was used to calculate the false discovery rate for multiple comparisons. Results: Higher dietary GL and GI (both based on total and available carbohydrates) and a higher intake of sugar and sugar‐sweetened beverages were associated with lower circulating SHBG concentrations (all P trend < 0.05; Q ‐values = 0.04,0.01, 0.07, 0.10, 0.01, and <0.0001, respectively). In contrast, women with a greater intake of dietary fiber tended to have elevated SHBG levels (P trend = 0.01, Q ‐value = 0.04). There was no significant association between total carbohydrates or other carbohydrate‐abundant foods and SHBG concentrations. Conclusions: The findings suggest that low GL or GI diets with low sugar and high fiber content may be associated with higher serum SHBG concentrations among postmenopausal women. Future studies investigating whether lower GL or GI diets increase SHBG concentrations are warranted.
- Subjects
POSTMENOPAUSE; SEX hormones; CARDIOVASCULAR diseases; GLOBULINS; TYPE 2 diabetes
- Publication
Journal of Diabetes, 2018, Vol 10, Issue 6, p467
- ISSN
1753-0393
- Publication type
Article
- DOI
10.1111/1753-0407.12550