Objective To examine the levels of interferon-gamma; (INF-gamma;), tumor necrosis factor-alpha; (TNF-alpha;) and interleukin-6(IL-6) in serum of patients with acute uveitis before and after treatment, and to explore the possible roles of those cytokines in the initiation and progression of the uveitis. Methods A series of 75 patients with acute uveitis,and 30 healthy persons from our hospital were investigated. The levels of INF-gamma;, TNF-alpha; and IL-6 in acute phase and convalescent phase were measured by the enzymelinked immunosorbent assay. Result The serum levels of INF-gamma;, TNF-alpha; and IL-6 in acute phase were significantly higher than that of the convalescent phase and the healthy controls (F=65.805/50.418/155.381, P=0.000). A significant negative correlation was found between the serum levels of INF-gamma;, TNF-alpha; and IL-6 in acute phase with their initial visual acuity(r=-0.656, -0.592 and -0.653, Plt;0.01). There was also a positive correlation among the serum levels of INF-gamma;, TNF-alpha; and IL-6(r=0.340, 0.467 and 0.338, Plt;0.05). Conclusions There are high serum levels of INF-gamma;, TNF-alpha; and IL-6 in patients with acute uveitis, and the cytokines levels were decreased after the treatment. The results suggested that the INF-gamma;, TNF-alpha; and IL-6 involved in initiation and progression of uveitis.
ObjectiveTo explore the correlation of serum neutrophil gelatinase-associated lipocalin (sNGAL) with inflammatory response in patients with community-acquired pneumonia (CAP) and assess the diagnostic value of sNGAL for severe CAP (SCAP).MethodsFrom January 2018 to June 2019, a total of 85 patients with CAP were enrolled in this study. Age, length of hospital stay, the levels of serum creatinine, blood urea nitrogen, white blood cell count,C-reactive protein (CRP), interleukin-6 (IL-6), and procalcitonin, and CURB-65 score were compared between patients with SCAP (n=34) and patients without SCAP (n=51). The correlations of sNGAL with serum creatinine, blood urea nitrogen, white blood cell count, CRP, IL-6, procalcitonin, and CURB-65 score were assessed with Spearman’s correlation analysis. The area under the receiver operating characteristic (ROC) curve for sNGAL diagnosing SCAP was examined. ResultsCompared with patients without SCAP, SCAP patients demonstrated older age, longer hospital stay, higher serum CRP and IL-6 concentritions, and higher CURB-65 score (P<0.05). The Spearman’s correlation test showed that sNGAL was positively correlated with serum CRP, IL-6, PCT and CURB-65 score (rs=0.472, 0.504, 0.388, and 0.405, respectively; P<0.01). According to ROC analysis, the area under curve of sNGAL for diagnosing SCAP were 0.816, with a sensitivity of 76.56% and a specificity of 74.4% when the cut-off value was 171.0 ng/mL.ConclusionssNGAL concentration is positively correlated with the serverity of CAP. It can be regarded as a reliable indicator for diagnosis of SCAP in patients with CAP.
Objective To observe the effects of nitric oxide ( NO) inhalation on lung inflammation of acute lung injury ( ALI) in rats. Methods Twenty-four SD rats were randomly divided into four groups, ie. a normal control group, an ALI group, a 20 ppm NO inhalation group, and a 100 ppm NO inhalation group. ALI model was established by LPS instillation intratracheally and the control group was instilled with normal saline. Then they were ventilated with normal air or NO at different levels, and sacrificed 6 hours later. Pathological changes were evaluated by HE staining. The expression of TLR4 in lung tissues was detected by immunohistochemistry. IL-6 level in lung homogenate was measured by ELISA. Results In the ALI group, the inflammation in bronchus and bronchioles was more apparently, and the expressions of TLR4and IL-6 were elevated significantly compared with the control group. 20 ppm NO inhalation significantly decreased the expression of TLR4 and IL-6, and alleviated the inflammation of ALI. However, 100 ppm NO inhalation did not change TLR4 expression and lung inflammation significantly, and increased IL-6 level.Conclusions Inhalation low level of NO( 20 ppm) can alleviate lung inflammation possibly by reducing theexpression of TLR4 and IL-6.
Objective To observe the levels of vascular endothelial growth factor (VEGF), interleukin-6 (IL-6) and monocyte chemotactic protein-1 (MCP-1) in aqueous humor of patients with macular edema secondary to central retinal vein occlusion (CRVO). Methods Forty eyes of 40 consecutive patients with macular edema secondary to CRVO (CRVO group) were enrolled in this study. The patients included 25 males and 15 females. The patient age ranged from 38 to 76 years. The control group was 20 patients with senile cataract who underwent phacoemulsification, including 10 males and 10 females. The levels of VEGF165, VEGF165b, IL-6 and MCP-1 in aqueous humor were determined by enzymelinked immunosorbent assay. The correlation of VEGF, and IL-6, and MCP-1 were analyzed. Results The median aqueous level of VEGF165, IL-6 and MCP-1 were 1089.0, 165.6, 1253.0 pg/ml respectively in CRVO group, which were higher than the control group's results (168.2, 4.7, 216.4 pg/ml respectively), the differences were statistically significant (Z=-4.549, -6.008, -5.343;P＜0.001). The VEGF165b in CRVO group and control group were 834.0, 915.9 pg/ml respectively, the difference was not statistically significant (Z=-0.207，P＞0.05). The ratio of VEGF165b to VEGF165 in CRVO group and control group were 2.71, 7.28 respectively, the difference was statistically significant (t=-3.007，P＜0.05). There was a highly positive correlation between IL-6 and VEGF in CRVO group (r=0.526,P=0.001) and also mild positive correlation in control group (r=0.425，P=0.070). No correlation between MCP-1 and VEGF was observed in both groups (CRVO group: r=0.211,P＞0.05. Control group: r=-0.019,P＞0.05). Conclusions VEGF165, IL-6 and MCP-1 levels were increased in CRVO patients while the VEGF165b was normal. The ratio between VEGF165b and VEGF165 in aqueous humor of patients with macular edema secondary to CRVO was decreased.
Objective To explore the clinical significance of IL-6 and 8-isoprostane( 8-iso-PG) in exhaled breath condensate( EBC) in chronic obstructive pulmonary disease ( COPD) and smoking. Methods 17 patients with stable COPD and 30 healthy controls( 14 smokers and 16 non-smokers) were included in this study. EBC was collected in all subjects with a self-designed experimental device. The concentrations of 8-iso-PG and IL-6 in EBC were determined by enzyme-linked immunosorbent assay. Results Both8-iso-PG and IL-6 levels significantly increased in the COPD patients [ ( 8. 37±5. 09) pg/mL and ( 4. 62 ±1. 73) pg/mL, respectively] compared with the healthy non-smokers[ ( 5. 23 ±3. 08) pg/mL and ( 3. 09 ±1. 85) pg/mL, respectively] ( both P lt;0. 01) . There was no difference between the COPD patients and thehealthy smokers( both P gt; 0. 05) . The IL-6 level significantly increased in the healthy smokers compared with the non-smokers [ ( 4. 06 ±1. 59) pg/mL vs ( 3. 09 ±1. 85) pg/mL, P lt;0. 05] , but the 8-iso-PG level was similar in the non-smokers and smokers( P gt;0. 05) . Conclusion Airway inflammation and oxide stress are persistent in stable COPD patients and are aggravated by smoking.
【Abstract】ObjectiveTo explore the changes of colon motility of the rats in multiple organ dysfunction syndrome （MODS） induced bacterial peritonitis and the effects of IL6, TNFα and induce nitricoxide synthase (iNOS) on colon motility. MethodsWistar rats were divided into two groups, which were the control group and the MODS group. The number of stool, the amplitude changes of circular smooth muscle strip, the length of smooth muscle cell, and the changes of serum NO in two groups were observed. The expressions of IL6, TNFα and iNOS protein and IL6 mRNA, TNFα mRNA and iNOS mRNA in distal colon were investigated by using immunohistochemical methods and RTPCR. ResultsThe numbers of stool and the amplitude in the MODS group were lower than those of the control group （P＜0.05）. The expressions of IL6, TNFα and iNOS were negative in the control group, while they were positive in the MODS group. IL6 mRNA,TNFα mRNA and iNOS mRNA were negative expression in the control group, but they were positive expression in the MODS group. The concentration of serum NO and the length of smooth muscle cells in the MODS group were higher than those of the control group (P＜0.01). ConclusionColon motor dysfunction of the rats is related to the iNOS, IL6 and TNFα.
Objective To explore the correlation between interleukin-6 (IL-6) 174G/C polymorphism and ischemic stroke risks. Methods Systematic searches of electronic databases as CBM, CNKI, PubMed, MEDLINE and EMbase were performed. Meta-analysis was conducted by using RevMan 5.1.2 and Stata 11.0 software. The pooled odds ratios (ORs) with 95% confidence intervals (95%CIs) were performed. Publication bias was tested by funnel plot, Egger’s regression test and Begg’s test. Sensitivity analysis was made by repeating the fixed effects model or random effects model Meta-analysis with each of the studies individually removed. Results A total of 11 publications with 12 studies were identi?ed. The results of meta-analyses showed no signi?cant difference was found in the correlation between IL-6 174G/C polymorphism and ischemic stroke risks (for G/C vs. G/G: OR=0.98, 95%CI 0.78 to 1.24; for C/C vs. G/G: OR=0.75, 95%CI 0.38 to 1.50; for dominant inheritance model: OR=0.93, 95%CI 0.68 to 1.28; for recessive inheritance model: OR=0.80, 95%CI 0.45 to 1.42). In the subgroup analyses on ethnicity, no signi?cant correlation was found. But in the subgroup analyses on source of control population, the hospital-based subgroup showed IL-6 174G/C polymorphism was the protective factor of ischemic stroke (for G/C vs. G/G: OR=0.56, 95%CI 0.40 to 0.79; for C/C vs. G/G: OR=0.17, 95%CI 0.11 to 0.27; for dominant inheritance model: OR=0.40, 95%CI 0.29 to 0.55; for recessive inheritance model: OR=0.24, 95%CI 0.16 to 0.37). Conclusion Meta-analysis bly suggests that the correlation between IL-6 174 G/C polymorphism and ischemic stroke is not significantly different.
ObjectiveTo discuss the effects of coix seed extract injection on rate of tumor of C57 mice liver cancer model, tumor size, and serum IL-6. MethodsUsing chemical carcinogens diethyl nitrosamine (DEN) to establish the mice model of liver cancer, liver cancer mouse model to coix seed extract was given observation of C57 mice liver cancer model come tumor formation rate, tumor growth, and the change of serum IL-6. ResultsC57 mice after intraperitoneal injection of coix seed extract injection model of liver cancer tumor rate (55.6%) significantly lower than the DEN group (87.5%), P < 0.01; tumor diameter[(0.3±0.05) cm] was lower than that in group DEN[(0.8±0.06) cm], P < 0.01. The serum level of IL-6 in C57 mice after treated with coix seed extract significantly lower than that in group DEN (P < 0.01). ConclusionCoix seed extract can effectively inhibit the tumor rate and the growth of tumor in hepatocellular carcinoma model of C57 mice, and decrease the level of serum IL-6.
ObjectiveTo explore the role of interleukin-6 (IL-6) in cervical cancer cell C-33A.MethodsThe cervical cancer cells C-33A were divided into the IL-6 group and the control group after culture. The IL-6 group were treated with 50 ng/mL of recombinant IL-6 protein, and the control group were without IL-6. Then cell viability and cell migration were detected by MTT assay and wound-healing assay, respectively. The mRNA and protein expressions of epithelial-cadherin (E-Cad), neural-cadherin (N-Cad), vimentin and transcription factors-snail1 (TFs-SNAIL1) were analyzed by real time quantitative polymerase chain reaction and Western blotting, respectively.ResultsCompared with the control group, in the IL-6 group the proliferation of cervical cancer cells C-33A was promoted (12 h: 0.388±0.025 vs. 0.597±0.057; 24 h: 0.547±0.021 vs. 0.798±0.036; 48 h: 0.745±0.056 vs. 1.296±0.122; 72 h: 1.074±0.053 vs. 1.805±0.113; P<0.05), and the relative migration ability of cervical cancer cell was promoted (12 h: 1.057±0.029vs. 1.200±0.045; 24 h: 1.189±0.036 vs. 1.428±0.181; 48 h: 1.273±0.059 vs. 1.569±0.143; 72 h: 1.409±0.047 vs. 1.623±0.170; P<0.05); meanwhile, compared with the control group, in the IL-6 group, the expression of E-Cad mRNA (1.012±0.098vs. 0.483±0.171, P<0.01) and E-Cad protein (1.032±0.015vs. 0.395±0.119; P<0.01) decreased, the expression of N-Cad mRNA (1.054±0.106vs. 1.465±0.230, P<0.01) and N-Cad protein (1.040±0.043vs. 1.605±0.128, P<0.01) increased, the expression of vimentin mRNA (1.050±0.083vs. 1.340±0.099, P<0.05) and vimentin protein (1.043±0.062vs. 1.430±0.077, P<0.05) increased, and the expression of TFs-SNAIL1 mRNA (1.058±0.176vs. 1.510±0.229, P<0.01) and Fs-SNAIL1 protein (1.022±0.015vs. 1.470±0.139, P<0.01) increased.ConclusionIL-6 may promote the proliferation, migration, and epithelial-mesenchymal transition of cervical cancer cell C-33A.
Objective To research on the effect of protoparaxaxotrid saporlirs (PTS), active component in Sanqi Tongshu Capsule, on the expressions of the serum level of IL-6 and VEGF of patients with the acute cerebral infarction at different time points. Method 86 patients were randomly divided into two groups: PTS group and Nimodipine group, healthy person as control group. ELISA was applied to measure the serum level of IL-6 and VEGF in during different phases (3 d, 7 d, 14 d and 28 d after the onset of cerebral infarction). Results The expressions of VEGF rose significantly in the all of ACI patients. The expressions of IL-6 rose significantly on third day, then began to decrease. The serum level of IL-6 declined significantly (Plt;0.05) and the serum level of VEGF rose in both of PTS group and Nimodipine group in contrast with control group (Plt;0.01). Conclusion PTS can promote the expressions of VEGF after the cerebral infarction at different time points, and decrease the expressions of IL-6 in the early period of ACI, decreased，which may be one of the molecular mechanisms of this PTS in treating acute cerebral infarction.