PMID- 31522432 OWN - NLM STAT- MEDLINE DCOM- 20200211 LR - 20201019 IS - 1735-5249 (Electronic) IS - 1735-1502 (Linking) VI - 18 IP - 3 DP - 2019 Jun 8 TI - Interleukin-18 Polymorphisms Deficiency Association with Asthma Risk: An Update Meta-analysis. PG - 251-261 LID - 10.18502/ijaai.v18i3.1118 [doi] AB - Growing evidence indicated conflicting results that Interleukin-18 (IL-18) promoter polymorphisms rs1946518 (A-607C), rs187238 (G-137C) and rs549908 (A-105C) were associated with asthma risk. The aim of this study is to comprehensively evaluate the IL-18 polymorphisms and asthma by a systematic review and meta-analysis. A total of 12 studies testing the association between these polymorphisms and asthma were examined (8 studies for A-607C, 8 studies for G-137C, and 4 studies for A-105C) in the update meta-analysis, up to Dec 30, 2017. Summary odds ratios (ORs) and 95% confidence intervals (CI) were used to estimate the strength of association between each polymorphism and asthma using fixed- and random-effects models when appropriate. Heterogeneity and publication bias were evaluated. The meta-analysis results indicated that any allele frequencies of the IL-18 polymorphisms (A-607C, G-137C and A-105C) was not associated with asthma risk (p>0.05). And no statistically significant association was observed between genotype frequencies of these polymorphisms and asthma under different genetic models (p>0.05). Subgroup analysis results were similar to the main analysis by ethnicity, sample size, genotyping methods, matching criteria and quality score. There was no evidence of publication bias. The present meta-analysis suggests that IL-18 polymorphisms (A-607C, G-137C and A-105C) were unlikely to be associated with asthma risk. FAU - Liu, Huan AU - Liu H AD - Department of Preventive Medicine, North Sichuan Medical College, Nanchong, Sichuan, China AND Department of Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China. 244933432@qq.com. FAU - Feng, Yu AU - Feng Y AD - Department of Criminal Science and Technology, Chongqing Police College, Chongqing, China. xyun2005@163.com. FAU - Zhang, Wei AU - Zhang W AD - Department of Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China. 896514886@qq.com. FAU - Deng, Xiao-Dong AU - Deng XD AD - Department of Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China. 857123409@qq.com. FAU - Ma, Ying AU - Ma Y AD - Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China. yingma1314@126.com. FAU - Liu, Yun AU - Liu Y AD - Department of Forensic Medicine, North Sichuan Medical College, Nanchong, Sichuan, China. xyun2005@163.com. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review DEP - 20190608 PL - Iran TA - Iran J Allergy Asthma Immunol JT - Iranian journal of allergy, asthma, and immunology JID - 101146178 RN - 0 (IL18 protein, human) RN - 0 (Interleukin-18) SB - IM MH - Alleles MH - Asthma/*genetics MH - Gene Frequency MH - Genetic Association Studies MH - Genetic Heterogeneity MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Interleukin-18/*genetics MH - *Polymorphism, Single Nucleotide MH - Publication Bias MH - Risk Assessment MH - Risk Factors OTO - NOTNLM OT - Asthma OT - Genetic susceptibility OT - Interleukin-18 OT - Meta-analysis OT - Single nucleotide polymorphism EDAT- 2019/09/16 06:00 MHDA- 2020/02/12 06:00 CRDT- 2019/09/16 06:00 PHST- 2018/04/05 00:00 [received] PHST- 2019/01/12 00:00 [accepted] PHST- 2019/09/16 06:00 [entrez] PHST- 2019/09/16 06:00 [pubmed] PHST- 2020/02/12 06:00 [medline] AID - 10.18502/ijaai.v18i3.1118 [doi] PST - epublish SO - Iran J Allergy Asthma Immunol. 2019 Jun 8;18(3):251-261. doi: 10.18502/ijaai.v18i3.1118.