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Chemokines in Prediabetes and Type 2 Diabetes: A Meta-Analysis
Xiongfeng Pan1,2, Atipatsa C Kaminga1,3, Shi Wu Wen4,5
1Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China.
Background:
A growing number of studies found inconsistent results on the role of chemokines in the progression of type 2 diabetes (T2DM) and prediabetes (PDM). The purpose of this meta-analysis was to summarize the results of previous studies on the association between the chemokines system and T2DM/PDM.
Methods:
We searched in the databases, PubMed, Web of Science, Embase and Cochrane Library, for eligible studies published not later than March 1, 2020. Data extraction was performed independently by 2 reviewers, on a standardized, prepiloted form. Group differences in chemokines concentrations were summarized using the standardized mean difference (SMD) with a 95% confidence interval (CI), calculated by performing a meta-analysis using the random-effects model.
Results:
We identified 98 relevant studies that investigated the association between 32 different chemokines and T2DM/PDM. Altogether, these studies involved 14,708 patients and 14,574 controls. Results showed that the concentrations of CCL1, CCL2, CCL4, CCL5, CCL11, CXCL8, CXCL10 and CX3CL1 in the T2DM patients were significantly higher than that in the controls, while no difference in these concentrations was found between the PDM patients and controls.
Conclusion:
Progression of T2DM may be associated with elevated concentrations of chemokines.
Meta-Analysis Registration:
PROSPERO, identifier CRD42019148305.
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