• Haiming Jiang, Yejia Hu, Li Shang, Yuzhu Li, Lihua Yang, and Yuguo Chen.
• Department of Emergency, Qilu Hospital, Shandong UniversityJinan, China; Yantai Affiliated Hospital of Binzhou Medical UniversityYantai, China.
• Int J Clin Exp Patho. 2015 Jan 1; 8 (11): 14953-8.

ObjectivesIdiopathic pulmonary fibrosis (IPF) is a group of lung diseases that cause irreversible architectural distortion and impair gas, and finally progressive pulmonary functional decline and death, in which the common variant in the promoter region of the mucin 5B (MUC5B) gene may be involved. The present study aims to investigate whether variants within the MUC5B gene rs35705950 contributed to IPF susceptibility and severity in Chinese Han Population.MethodsA total of 187 patients diagnosed with IPF and 250 healthy controls were enrolled in this study. All subjects were genotyped for MUV5B SNP rs35705950. The demographic, comorbidity, clinical and functional data were recorded.ResultsThe rs35705950 of MUC5B were found significantly associated with increased risk of IPF susceptibility. One way ANOVA analysis found that there was a significant decreased FVC (P < 0.0001) and DLco (P < 0.0001) in correction with the minor allele of the SNP rs35705950. In the 5 years' follow-up, the carriers of the minor allele T increased mortality (P = 0.0294).ConclusionThis study demonstrated that the MUC5B polymorphism rs35705950 is associated with increased risk of idiopathic pulmonary fibrosis susceptibility, severity, and the decreased overall survival.

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