Giraldi L, et al. - Researchers explored the link between MUC1, MUC5AC, and MUC6 polymorphisms and Helicobacter pylori (HP) infection and gastric cancer (GC) risk through a systematic review and meta-analysis. For this investigation, MEDLINE, ISI Web of Science, Scopus bibliographic databases and the HuGE Navigator database were searched. The results obtained from the study confirmed the protective impact of MUC1 rs4072037 polymorphism on the risk of GC under the dominant model.