scholarly journals Association study of TRAF1-C5 polymorphisms with susceptibility to rheumatoid arthritis and systemic lupus erythematosus in Japanese

2009 ◽  
Vol 69 (2) ◽  
pp. 368-373 ◽  
Author(s):  
K Nishimoto ◽  
Y Kochi ◽  
K Ikari ◽  
K Yamamoto ◽  
A Suzuki ◽  
...  

Objective:The primary aim of this study was to investigate the association of polymorphisms of TRAF1-C5, a newly identified rheumatoid arthritis (RA) risk locus in Caucasians, with susceptibility to RA and systemic lupus erythematosus (SLE) in Japanese populations. Gene expression levels of TRAF1 and C5 to assess the functional significance of genotypes were also analysed.Methods:A multicentre association study consisting of 4 RA case-control series (4397 cases and 2857 controls) and 3 SLE case-control series (591 cases and 2199 shared controls) was conducted. Genotyping was performed using TaqMan genotyping assay for two single nucleotide polymorphisms (SNPs) that showed the best evidence of association in the previous Caucasian studies. Quantifications of TRAF1 and C5 expression were performed with TaqMan expression assay.Results:Significant differences in allele frequency for both SNPs were observed between RA and control subjects (combined odds ratio  = 1.09), while no significant difference was detected between patients with SLE and controls. Interestingly, alleles rs3761847 A and rs10818488 G had increased the risk for RA in the present study, while they decreased the risk in the original studies. A significant difference was found between risk allele carriers and non-carriers of rs10818488 for the expression level of TRAF1 in phorbol myristate acetate-stimulated lymphoblastoid cell lines (p = 0.04).Conclusion:Association of TRAF1-C5 locus with RA susceptibility was detected in the Japanese populations with modest magnitude, while no significant association was observed for SLE. Significant positive effect of genotype on the expression of TRAF1 might support the genetic association between TRAF1 and RA.

2021 ◽  
Vol 12 ◽  
Author(s):  
Ting-Yu Tu ◽  
Chiu-Yu Yeh ◽  
Yao-Min Hung ◽  
Renin Chang ◽  
Hsin-Hua Chen ◽  
...  

ObjectiveWe investigated the correlation between nontyphoidal Salmonella (NTS) infection and systemic lupus erythematosus (SLE) risk.MethodsThis case-control study comprised 6,517 patients with newly diagnosed SLE between 2006 and 2013. Patients without SLE were randomly selected as the control group and were matched at a case-control ratio of 1:20 by age, sex, and index year. All study individuals were traced from the index date back to their NTS exposure, other relevant covariates, or to the beginning of year 2000. Conditional logistic regression analysis was used to analyze the risk of SLE with adjusted odds ratios (aORs) and 95% confidence intervals (CIs) between the NTS and control groups.ResultsThe mean age was 37.8 years in the case and control groups. Females accounted for 85.5%. The aOR of having NTS infection were significantly increased in SLE relative to controls (aOR, 9.20; 95% CI, 4.51-18.78) in 1:20 sex-age matching analysis and (aOR, 7.47; 95% CI=2.08-26.82) in propensity score matching analysis. Subgroup analysis indicated that the SLE risk was high among those who dwelled in rural areas; had rheumatoid arthritis, multiple sclerosis, or Sjogren’s syndrome; and developed intensive and severe NTS infection during admission.ConclusionsExposure to NTS infection is associated with the development of subsequent SLE in Taiwanese individuals. Severe NTS infection and other autoimmune diseases such as rheumatoid arthritis, multiple sclerosis, or Sjogren’s syndrome also contributed to the risk of developing SLE.


2016 ◽  
Vol 181 (10) ◽  
pp. 1348-1356 ◽  
Author(s):  
Barbara H. Bardenheier ◽  
Jonathan Duffy ◽  
Susan K. Duderstadt ◽  
Jay B. Higgs ◽  
Michael P. Keith ◽  
...  

2019 ◽  
Vol 47 (2) ◽  
pp. 188-196 ◽  
Author(s):  
Michelle J. Ormseth ◽  
Joseph F. Solus ◽  
Quanhu Sheng ◽  
Fei Ye ◽  
Qiong Wu ◽  
...  

Objective.MicroRNA (miRNA) are short noncoding RNA that regulate genes and are both biomarkers and mediators of disease. We used small RNA (sRNA) sequencing and machine learning methodology to develop an miRNA panel to reliably differentiate between rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE) and control subjects.Methods.Plasma samples from 167 RA and 91 control subjects who frequency-matched for age, race, and sex were used for sRNA sequencing. TIGER was used to analyze miRNA. DESeq2 and random forest analyses were used to identify a prioritized list of miRNA differentially expressed in patients with RA. Prioritized miRNA were validated by quantitative PCR, and lasso and logistic regression were used to select the final panel of 6 miRNA that best differentiated RA from controls. The panel was validated in a separate cohort of 12 SLE, 32 RA, and 32 control subjects. Panel efficacy was assessed by area under the receiver operative characteristic curve (AUC) analyses.Results.The final panel included miR-22-3p, miR-24-3p, miR-96-5p, miR-134-5p, miR-140-3p, and miR-627-5p. The panel differentiated RA from control subjects in discovery (AUC = 0.81) and validation cohorts (AUC = 0.71), seronegative RA (AUC = 0.84), RA remission (AUC = 0.85), and patients with SLE (AUC = 0.80) versus controls. Pathway analysis showed upstream regulators and targets of panel miRNA are associated with pathways implicated in RA pathogenesis.Conclusion.An miRNA panel identified by a bioinformatic approach differentiated between RA or SLE patients and control subjects. The panel may represent an autoimmunity signature, perhaps related to inflammatory arthritis, which is not dependent on active disease or seropositivity.


Author(s):  
Brena Rodrigues Manzano ◽  
Paulo Sérgio da Silva Santos ◽  
Matheus Henrique Bariquelo ◽  
Nathália Rodrigues Germano Merlini ◽  
Heitor Marques Honório ◽  
...  

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Wen Liang Fang ◽  
Bin Zhou ◽  
Yan Yun Wang ◽  
Yu Chen ◽  
Lin Zhang

Systemic lupus erythematosus (SLE) is a prototypic systemic autoimmune disease. Adiponectin is an adipocyte-derived cytokine with anti-inflammatory, antidiabetic, and antiatherogenic properties. No study has reported on the association between adiponectin (ADIPOQ) gene and SLE. Our aim is to investigate the association between single-nucleotide polymorphisms in ADIPOQ gene and SLE. We examined 179 SLE patients and 237 age- and gender-matched controls from Sichuan province in China. Genotypes were determined using polymerase chain reaction-restriction fragment length polymorphism and DNA sequencing. Results show that there was no significant difference in the allele frequencies of rs1501299 (P=.311,OR=1.17, 95% CI: 0.86–1.59) and rs2241766 (P=.929,OR=0.99, 95% CI: 0.74–1.33) in ADIPOQ gene between SLE patients and controls. The same results were seen in their genotypes (P<.05). The allele frequencies of rs1501299 and rs2241766 polymorphisms of ADIPOQ may not be associated with SLE risk.


2011 ◽  
Vol 71 (2) ◽  
pp. 314-316 ◽  
Author(s):  
Lina-Marcela Díaz-Gallo ◽  
Sonia Garcia ◽  
Norberto Ortego-Centeno ◽  
Juan Jiménez-Alonso ◽  
Julio Sánchez-Román ◽  
...  

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