The Effects of Gene Polymorphisms in Interleukin-4 and Interleukin-6 on the Susceptibility of Rheumatoid Arthritis in a Chinese Population

Background. Interleukin-4 (IL-4) and interleukin-6 (IL-6) have been reported to associate with pathogenesis of rheumatoid arthritis (RA); however, the role of IL-4 and IL-6 genetic polymorphisms in RA remains unknown.Method. A total of 752 unrelated Chinese patients with RA and 798 healthy Chinese volunteers with no family histories of any autoimmune diseases were recruited. The promoter IL-4-590 C/T and IL-6-174 G/C polymorphisms were genotyped.Result. The genotype distributions and allele frequencies of IL-4-590 C/T and IL-6-174 G/C polymorphisms in RA patients were significantly different from healthy volunteers. Statistically significant differences were observed in genotypes for IL-4-590 and IL-6-174. The frequencies of both the T allele on the IL-4-590 and the C on the IL-6-174 were significantly increased in RA patients.Conclusion. The IL-4-590 and IL-6-174 promoter polymorphisms may be associated with increased risk of RA and could be used as genetic marker for assessing the susceptibility and severity of RA in Chinese.

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A Promoter Region Polymorphism inPDCD-1Gene Is Associated with Risk of Rheumatoid Arthritis in the Han Chinese Population of Southeastern China

International Journal of Genomics ◽

10.1155/2014/247637 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 11

Author(s):

CuiPing Liu ◽

JueAn Jiang ◽

Li Gao ◽

XiaoHan Hu ◽

FengMing Wang ◽

...

Keyword(s):

Rheumatoid Arthritis ◽

T Cells ◽

Chinese Population ◽

Direct Sequencing ◽

Han Chinese ◽

Chinese Patients ◽

Sequencing Analysis ◽

Healthy Controls ◽

Han Chinese Population ◽

Increased Risk

Objective. Programmed cell death 1 (PD-1) induces negative signals to T cells during interaction with its ligands and is therefore a candidate gene in the development of autoimmune diseases such as rheumatoid arthritis (RA). Herein, we investigate the association ofPDCD-1polymorphisms with the risk of RA among Chinese patients and healthy controls.Methods. Using the PCR-direct sequencing analysis, 4PDCD-1SNPs (rs36084323, rs11568821, rs2227982, and rs2227981) were genotyped in 320 RA patients and 309 matched healthy controls. Expression of PD-1 was determined in peripheral blood lymphocytes by flow cytometry and quantitative real-time reverse transcriptase polymerase chain reaction.Results. We observed that the GG genotype of rs36084323 was associated with a increased risk for developing RA (OR 1.70, 95% 1.11–2.61,P=0.049). Patients carrying G/G genotype displayed an increased mRNA level of PD-1(P=0.04)compared with A/A genotype and healthy controls. Meanwhile, patients homozygous for rs36084323 had induced basal PD-1 expression on activated CD4+ T cells.Conclusion. ThePDCD-1polymorphism rs36084323 was significantly associated with RA risk in Han Chinese population. This SNP, which effectively influenced the expression of PD-1, may be a biomarker of early diagnosis of RA and a suitable indicator of utilizing PD-1 inhibitor for treatment of RA.

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The role of genetic variants in FCGR2A on the risk of rheumatoid arthritis in the Han Chinese population

10.21203/rs.3.rs-63617/v1 ◽

2020 ◽

Author(s):

Yonghui Yang ◽

Linna Peng ◽

Chunjuan He ◽

Shishi Xing ◽

Dandan Li ◽

...

Keyword(s):

Rheumatoid Arthritis ◽

Chinese Population ◽

Joint Damage ◽

Han Chinese ◽

Nucleotide Polymorphisms ◽

Male Population ◽

Han Chinese Population ◽

Increased Risk ◽

Chinese Cohort

Abstract Background: Rheumatoid arthritis (RA) is the most common inflammatory arthritis and is characterized by irreversible joint damage and deformities, which is largely caused by genetic factors. The aim of this study was to explore the role of FCGR2A polymorphisms with the susceptibility to RA in the Han Chinese cohort.Methods: We enrolled 506 RA patients and 509 healthy controls, with four single nucleotide polymorphisms (SNPs) successfully genotyped using Agena MassARRAY. Genetic models, haplotype analyses were applied to assess the association between FCGR2A polymorphisms and RA. And we evaluated the relative risk by odds ratios (ORs) and 95% confidence intervals (95% CIs) using logistic regression analysis.Results: The results revealed that FCGR2A rs6668534 was significantly related to an increased risk of RA in the overall (OR = 1.24, 95%CI = 1.04 – 1.48, p = 0.014). There was no any association found between the polymorphisms and RA risk at age > 54 years, while the two (rs6671847 and rs1801274) of the four SNPs possibly contributed to the susceptibility to RA at age ≤ 54 years. And the rs6668534 polymorphism conferred the increased susceptibility to RA in the male population. The haplotypes in the FCGR2A gene was significantly associated with the RA risk.Conclusions: Our research have demonstrated that the FCGR2A gene polymorphisms (rs6671847, rs1801274 and rs6668534) were implicated in RA susceptibility in the Han Chinese population.

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The association between serum selenium concentration and prognosis in patients with heart failure in a Chinese population

Scientific Reports ◽

10.1038/s41598-021-93873-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Zhiliang Zhang ◽

Chao Chang ◽

Yuxin Zhang ◽

Zhiyong Chai ◽

Jinbei Li ◽

...

Keyword(s):

Heart Failure ◽

Chinese Population ◽

Selenium Concentration ◽

Chinese Patients ◽

Serum Selenium ◽

Increased Risk ◽

Patients With Heart Failure ◽

All Cause Mortality ◽

Serum Selenium Concentration ◽

Baseline Information

AbstractWhether Selenium (Se) deficiency relates with adverse prognosis in Chinese patients with heart failure (HF) is still unknown. This study aimed to investigate the association of serum Se level and the outcomes of patients with HF in a Chinese population. Patients with HF and serum Se examination were retrospectively included. Baseline information were collected at patient’s first admission. The primary and secondary outcomes were all-cause mortality and rehospitalization for HF during follow-up, respectively. The study participants were divided into quartiles according to their serum Se concentrations. The Cox proportional hazard models were adopted to estimate the association of serum Se levels with observed outcomes. A total of 411 patients with HF with a mean age of 62.5 years were included. The mean serum level of Se was 68.3 ± 27.7 µg/L. There was nonsignificant difference of baseline characterizes between the four quartile groups. In comparison with patients in the highest quartile, those with the lowest quartile (17.40–44.35 µg/L) were associated with increased risk of all-cause mortality [adjusted hazard ratios (95% CI) 2.32 (1.43–3.77); Ptrend = 0.001]. Our study suggested that a lower serum Se level was significantly associated with increased risk of all-cause mortality in patients with HF.

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