Liu W.,Shandong University |
Xu L.-S.,Shandong University |
Liu Q.-J.,Shandong University |
Dong F.-Z.,University of Iowa |
And 14 more authors.
Experimental Lung Research | Year: 2012
Background: Asthma is a chronic inflammatory disease of the airway that is mediated by T-helper 2(TH2) cells. Thymic stromal lymphopoietin (TSLP) can aggravate asthmatic lung inflammation by activating dendritic cells (DCs) to promote TH2 differentiation. TSLP promoter polymorphisms are associated with susceptibility to bronchial asthma in Japanese population. We sought to determine whether single nucleotide polymorphisms (SNPs) in TSLP gene are associated with asthma in Chinese Han population. Objective: To analyze the polymorphism of the two SNPs Rs2289276 and Rs2289278 in TSLP gene and to evaluate the association between the two SNPs and asthma susceptibility in Chinese Han population by using case-control study. Methods: five hundred and thirty one asthmatic patients and 540 agesex matched normal controls were collected and DNA were extracted from peripheral blood, then the genotypes of SNPs Rs2289276 and Rs2289278 in TSLP gene were detected with polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP), genotype and allele frequencies were calculated and analyzed with Chi-square test. Results: Frequencies of CC/CT/TT genotypes at Rs2289276 site were 0.4706/0.4392/0.0902 in the asthmatic patients and 0.5604/0.3800/0.0595 in the healthy controls. Frequencies of CC/CG/GG genotypes at Rs2289278 site were 0.6502/0.2966/0.0532 in the asthmatic patients and 0.5795/0.3428/0.0777 in the healthy controls. The genotype and allele frequencies of the two SNPs in asthma patients were significantly different from those in the healthy controls. Rs2289278 C allele was correlated with decreased FEV1: FVC (P ≤ .05). Conclusions: TSLP variants are significantly associated with bronchial asthma. TSLP might be a new therapeutic target molecule for asthma. © 2012 Informa Healthcare USA, Inc.
Wang J.,Yantaiyuhuangding Hospital |
Liu H.,Yantaiyuhuangding Hospital |
Liu X.,Yantaiyuhuangding Hospital |
Qi X.,Yantaiyuhuangding Hospital
International Journal of Clinical and Experimental Medicine | Year: 2015
Objective: Genetic factors play an important role in osteosarcoma (OS) etiology and fibroblast growth factor 2 (FGF2) gene single polymorphisms may be involved. The aim of this study was to test whether FGF2 variants are associated with susceptibility to OS in a Chinese population. Methods: A total of 151 subjects who were diagnosed as OS and 225 healthy age-matched controls were enrolled in the present study. Thers11737764 C/T SNP in FGF2 gene was genotyped in all the subjects. The SPSS software was used to investigate the association between the rs11737764 genotypes and OS susceptibility or severity. Results: The genotype frequencies of the FGF2 rs11737764 C/T polymorphism were 44.4% (CC), 50.3% (CT) and 5.3% (TT) in OS patients, and 55.6% (CC), 43.1% (CT) and 1.3% (TT) in controls. Rs11737764 C/T was found to be significantly associated with increased risk and OS no matter what genetic model was used. Conclusion: In conclusion, our data demonstrated the FGF2 SNP rs11737764 was significantly associated with increased osteosarcoma susceptibility in Chinese Han Population. © 2015, E-Century Publishing Corporation. All rights reserved.