Association of IL-10-1082G>A, -819C>T and -592C>A Polymorphisms with susceptibility to asthma in children: a Systematic Review and Meta-Analysis.

SUMMARY: Studies evaluating the association of Interleukin 10 (IL-10) polymorphisms with risk of pediatric asthma found inconsistent data. Here, we performed a meta-analysis to get a precise estimation of the associations. Relevant studies identified in the PubMed, Scopus, CNKI databases were used to perform a meta-analysis. A total of 23 case-control studies including nine studies with 1298 cases and 1079 controls on IL-10-1082G>A, four studies with 622 cases and 603 controls on -819C>T and ten studies with 1480 case and 1462 controls on -592C>A were selected. Overall, there was no significant association between IL-10 polymorphisms with pediatric asthma risk in global population. When stratified by ethnicity, there was a significant association of IL-10-1082G>A with pediatric asthma in Asians and Chinese. This meta-analysis result revealed that IL-10-1082G>A, -819C>T and -592C>A polymorphisms were not associated with pediatric asthma risk in the global population.

Association of polymorphisms in nucleotide excision repair pathway genes with susceptibility to cutaneous melanoma.

BACKGROUND: The effects of single nucleotide polymorphisms (SNPs) at nucleotide excision repair (NER) pathway on susceptibility to cutaneous melanoma (CM) are of great interest. To date, several epidemiological studies have evaluated whether the XPC, XPD, XPG and XPF polymorphisms are associated with CM. However, those studies results are controversial or inconclusive. Therefore, we conducted a study to evaluate the association of seven frequently investigated NER pathway polymorphisms with CM risk. METHODS: A total of 150 patients dia-gnosed with CM and 150 healthy controls were enrolled in the study. Seven SNPs in the NER pathway including XPC (Lys939Gln and Ala499Val), XPD (Lys157Gln, Asp272Asn, and Arg751Arg), XPG (Asp1104His) and XPF (Arg415Gln) were analyzed by polymerase chain reaction restriction fragment length polymorphism assay. RESULTS: There was no a significant association between XPC Lys939Gln, Ala499Val; XPD Asp272Asn, Arg751Arg, Arg751Arg; XPF Arg415Gln; and XPG Asp1104His polymorphisms and an increased risk of CM. CONCLUSIONS: This study results revealed that the XPC, XPD, XPG and XPF polymorphisms were not risk factor for susceptibility to CM. However, more well-designed with larger sample size studies in different populations are necessary to further evaluate and validate our results. Future studies which take into account gene-gene and gene-environment interactions are warranted for more precise evidence and further elucidation of the underlying mechanism of CM.