Commentary: Chemokines in Prediabetes and Type 2 Diabetes: A Meta-Analysis.

Abstract

Dear Editor:We read the paper by Pan et al. (1) with interest. The authors report a meta-analysis to summarize the results of previous studies on the association between the chemokines system and type 2 diabetes (T2DM) / prediabetes (PDM). They concluded that progression of T2DM may be associated with elevated concentrations of chemokines. After carefully reading, I wish to put forth the following suggestions. References 12 (2) and 102 (3) in Table 1 were created by the same author team, with the same characteristics (material, country, male gender, body mass index and mean age). I suspect that the authors included the same sample repeatedly, which would affect the credibility of the meta analysis’s final results. We recommend that the authors are able to include one of these studies, rather than duplicate inclusion.