Expression of Serum miR-141 and miR-224 in Patients with Non-Small Cell Lung Cancer and Its Clinical Significance / 现代检验医学杂志

Objective To investigate the expression of miR-141 and miR-224 in non-small cell lung cancer (NSCLC) and its clinical significance.Methods The levels of serum miR-141,miR-224 and squamous cell carcinoma associated antigen (SCC-Ag) were detected by RT-PCR in 128 patients with NSCLC,60 patients with benign lesions (benign group) and 60 healthy subjects (control group).To analyze the relationship between the expression levels of miR-141 and miR-224 and the clinicopathological features of NSCLC.The sensitivity and specificity of miR-141,miR-224 and SCC-Ag in the diagnosis of NSCLC were evaluated by ROC curve,and the correlation between serum miR-141 and miR-224,SCC-Ag were analyzed by Pearson correlation analysis in NSCLC patients.Results The levels of serum miR-141,miR-224 and SCC-Ag in NSCLC group were significantly higher than those in the benign group and the control group[miR-141(2-△△Ct):2.56±0.48 vs 1.08±0.24 and 1.02±0.21,miR-224 (2-△△Ct):3.94±0.82 vs 1.42±0.35 and 1.26±0.30,SCC-Ag (ng/ml):2.75±1.36 vs 0.64±0.47 and 0.52±0.24,all P＜0.01].In patients with NSCLC,the levels of serum miR-141 and miR-224 were correlated with pathological stage,pathological grade and lymph node metastasis (P＜0.05).ROC curve analysis showed that the optimal cut-off values of serum miR-141,miR 224 and SCC Ag (ng/ml) for diagnosis of NSCLC were 1.84,2.85 and 2.03,respectively.The AUC (0.913) of the three combined diagnosis of NSCLC was the largest,and the sensitivity and specificity were better,with 92.5 ％ and 82.7 ％,respectively.Pearson correlation analysis showed that serum miR-141 were positively corre lated with miR-224 and SCC-Ag (r=0.782,0.594,all P＜0.01),and serum miR 224 was positively correlated with SCC-Ag (r=0.594,P＜0.01).Conclusion Serum miR-141 and miR-224 are up-regulated in patients with NSCLC and are associated with clinicopathological features,and may be a new biomarker for the diagnosis of NSCLC.

Effect of Yinxieling decoction on PASI, TNF-α and IL-8 in patients with psoriasis vulgaris

OBJECTIVE@#To study the effect of Yinxieling decoction on PASI, TNF-α and IL-8 in patients with psoriasis vulgaris.@*METHODS@#A total of 120 cases of psoriasis vulgaris were divided into 4 groups according to syndrome differentiation of TCM and randomized controlled method: wind heat syndrome group (group A), blood stasis syndrome group (group B), blood dryness syndrome group (group C) and control group (group D) (n=30 per group). Patients in observation groups were treated with Yinxieling decoction, while patients in control group were treated by placebo for 8 weeks. Levels of TNF-α and IL-8 were determined before treatment, 4 and 8 weeks after treatment. psoriasis area and severity index score was also performed before and after treatment.@*RESULTS@#psoriasis area and severity index score and serum level of TNF-α, IL-8 were significantly decreased in all groups. The decrease in three observation groups was more significant (P<0.05 or P<0.01), and the decrease in wind heat syndrome group was the most significant (P<0.01). psoriasis area and severity index was positively correlated with TNF-α and IL-8, respectively (P<0.05).@*CONCLUSIONS@#Yinxieling decoction has therapeutical effect on psoriasis vulgaris via regulating TNF-α and IL-8.

Effect of pharmacological intervention on MIP-1α, MIP-1β and MCP-1 expression in patients with psoriasis vulgaris

OBJECTIVE@#To detect the expression level of macrophage inflammatory protein-1 (MIP-1)α, MIP-1β and monocyte chemoattractant protein-1 (MCP-1) in with psoriasis vulgaris and explore the role in the pathogenesis of psoriasis vulgaris.@*METHODS@#The level of MIP-1α, MIP-1β and MCP-1 in peripheral blood from 50 patients with psoriasis vulgaris and 50 normal controls were measured by enzyme linked immunosorbent assay. The correlation with psoriasis area and severity index (PASI) was analyzed. The level of MIP-1α, MIP-1β and MCP-1 was compared between psoriasis vulgaris patients at active stage and resting stage. And the change in MIP-1α, MIP-1β and MCP-1 before and after therapy was also observed.@*RESULTS@#The content of MIP-1α, MIP-1β and MCP-1 in patients with psoriasis vulgaris was (1342.78 ± 210.30), (175.28 ± 28.18) and (266.86 ± 32.75) ng/L, respectively, significantly higher than those in control group (P<0.05). The expression level of MIP-1α, MIP-1β and MCP-1 in peripheral blood of patients with psoriasis vulgaris was positively correlated with PASI (P<0.01). After acitretin therapy, expression level of MIP-1α, MIP-1β and MCP-1 in peripheral blood of patients with psoriasis vulgaris was significantly decreased.@*CONCLUSIONS@#Chemokine factor MIP-1α, MIP-1β and MCP-1 may be involved in the pathogenesis of psoriasis vulgaris.