A single nucleotide polymorphism in the IL1RL1 gene is associated with Behcet's disease in a Chinese Han population

AIM:To explore the association of single nucleotide polymorphisms(SNPs)in the IL33/IL1RL1 gene region with the susceptibility to Behcet’s disease(BD)in a Chinese Han population.METHODS:A total of eight SNPs in the candidate gene region(rs11792633,rs7025417,rs10975519 and rs1048274 in IL33;rs2310220,rs12712142,rs13424006 and rs3821204 in IL1RL1)were genotyped in783 BD patients and 701 healthy controls by the Sequenom Mass Array i PLEX platform.RESULTS:A statistically significant association was observed between IL1RL1 rs12712142 and BD patients.The frequency of IL1RL1 rs12712142 variant allele A was significantly lower in BD patients than that in controls(OR=0.8,95%CI:0.69-0.94,Pc=0.039);the genotype distribution(Pc=0.043)and additive and dominant genetic model analyses(OR=0.8,95%CI:0.69-0.94,Pc=0.040 and OR=0.72,95%CI:0.58-0.88,Pc=0.011)also indicated a strong association between rs12712142 and BD patients.CONCLUSION:This is the first study to reveal the association between IL1RL1 rs12712142 variant allele A and the decreased risk of BD in the Chinese Han population,indicating a protective role of IL1RL1 in the pathogenesis of BD.

A retrospective analysis of the relationship between dermatomyositis-associated interstitial lung disease and disease duration,age,arterial blood gas pH,and serum Cl^(-) levels

Background:Dermatomyositis-associated interstitial lung disease(DM-ILD)represents a severe and insidious complication of dermatomyositis(DM).The study aimed to investigate the association between DM-ILD and arterial blood gas indices,serum ion levels,and the timing of interstitial lung disease onset,with the goal of identifying potential predictors for DM-ILD.Methods:The investigation involved the collection of basic data from 89 patients with DM hospitalized at the Chinese PLA General Hospital between January 2019 and April 2022,and 43 normal control patients hospitalized for physical examinations during the same period.Analyses were conducted to explore the relationship between DM-ILD,arterial blood gas indices,disease duration,and serum ions.A regression model to predict DM-ILD was developed using these indices,and a receiver operating characteristic curve was generated.Results:Significant differences were observed in pH and PaO_(2) between the control group and the disease group(p<0.05).The DM group exhibited higher levels of pH,actual bicarbonate,and base excess(BE)compared with the control group.In contrast,pH and BE levels were lower in the DM-ILD group than in the DM group,with these differences being statistically significant(p<0.05).Interstitial lung disease was correlated with the duration of the disease and pH levels(p<0.05).The cutoff values for age,disease duration,pH,and Cl^(-) were 55.5 years,5.5 years,7.432,and 101.5 mmol/L,respectively.The model demonstrated a prediction sensitivity and specificity for DM-ILD of 0.809 and 0.722,respectively,with an area under the curve of 0.809.Conclusion:Arterial blood gas analysis and serum Cl^(-) levels may assist in predicting DM-ILD.A combined monitoring approach involving arterial blood gas pH,disease duration,age,and serum Cl^(-) levels could enhance the accuracy of DM-ILD predictions and hold significant clinical evaluation potential.

Altered miR-143 and miR-150 expressions in peripheral blood mononuclear cells for diagnosis of non-small cell lung cancer

Background Sensitive and specific biomarkers for identifying early stage of non-small cell lung cancer （NSCLC） are urgently needed to improve the therapeutic outcome and reduce the mortality.Small non-coding microRNAs （miRNAs） are key components of cancer development and are considered as potential biomarkers for cancer diagnosis and for monitoring treatment.The aim of this study was to determine whether aberrant miRNA expression can be used as a marker in peripheral blood mononuclear cells （PBMC） for the diagnosis of NSCLC.Methods The levels of two mature miRNAs （miR-143 and miR-150） were detected by probe-based stem-loop quantitative reverse-transcriptase PCR （RT-qPCR） in PBMC of 64 patients with NSCLC and 26 healthy individuals,and the relationship between miR-143 and miR-150 levels and clinical and pathological factors was explored.Results All endogenous miRNAs were present in peripheral blood in a remarkably stable form and detected by RT-qPCR.MiR-143 expression in the PBMC specimens was significantly lower in NSCLC patients than in healthy individuals （P ＜0.0001）.MiR-150 expression in the PBMC specimens was not significantly different between NSCLC patients and healthy individuals （P=0.260）.MiR-150 expression was significantly higher in lung adenocarcinoma patients than in healthy individuals （P=0.001）.There was a very strong difference in the expression level of miR-150 between lung adenocarcinoma patients and lung squamous cell caminoma patients （P ＜0.0001）.In receiver operating characteristic curve （ROC） analysis,low expression of miR-143 showed the area under the ROC （AUC） of 0.885 for distinguishing cancer patients from healthy subjects.High expression of miR-150 had an AUC of 0.834 for distinguishing lung adenocarcinoma patients from healthy subjects.High expression of miR-150 had an AUC of 0.951 for distinguishing lung adenocarcinoma from lung squamous cell carcinoma.The miR-150 level was significantly associated with distant metastasis （P=0.014）.Conclusions It is indicated that there is a potential for using miR-143 as a novel diagnostic biomarker for NSCLC.Moreover,miR-150 can be a highly accurate marker for differentiating adenocarcinoma from squamous cell carcinoma.