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- Title
Serum Fetuin-A and Risk of Gestational Diabetes Mellitus: An Observational Study and Mendelian Randomization Analysis.
- Authors
Ping Wu; Yi Wang; Yi Ye; Xue Yang; Qi Lu; Jiaying Yuan; Li Zha; Yan Liu; Xingyue Song; Shijiao Yan; Ying Wen; Xiaorong Qi; Chun-Xia Yang; Yixin Wang; Gang Liu; Chuanzhu Lv; Xiong-Fei Pan; An Pan
- Abstract
Context: Fetuin-A was reported to be associated with risk of type 2 diabetes, but its association with incident gestational diabetes mellitus (GDM) was less studied. Objective: We aimed to examine the association between fetuin-A levels in early pregnancy and risk of incident GDM and to evaluate whether this association was causal. Methods: A total of 332 pregnant women with GDM and 664 matched controls were included in this nested case-control study. Multivariable conditional logistic regression was applied to investigate the prospective association between serum fetuin-A in early pregnancy and subsequent risk of GDM. Two-sample Mendelian randomization (MR) analysis was used to examine the causal association, using summary statistics from the CHARGE Consortium and the FinnGen consortium. Results: The mean age of the participants was 28.0 years, and the mean gestational age was 11.0 weeks (range 6-15) at enrollment. In the final model, the odds ratio (OR) for GDM comparing the extreme quartiles of fetuin-A levels was 1.78 (95% CI 1.06, 2.98; P for trend = 0.009), and the restricted cubic spline analysis indicated a linear association (P for nonlinearity = 0.83). This positive association was found in women with waist circumference <80 cm but not in those with waist circumference ≥80 cm (P for interaction = 0.04). However, MR analyses showed no evidence of a causal association with an OR of 0.91 (95% CI 0.67, 1.23) per unit increment of fetuin-A. Conclusions: Serum fetuin-A levels in early pregnancy were positively associated with risk of GDM, particularly in those with normal waist circumference. However, we found no genetic evidence for a causal association.
- Subjects
TYPE 2 diabetes; SCIENTIFIC observation; MEDICAL care
- Publication
Journal of Clinical Endocrinology & Metabolism, 2022, Vol 107, Issue 9, pe3841
- ISSN
0021-972X
- Publication type
Article
- DOI
10.1210/clinem/dgac335