目的观察痰热清注射液超声雾化吸入治疗慢性支气管炎急性发作的效果并探讨其机制。方法60例住院患者随机分为治疗组和对照组各30例,对照组以沐舒坦雾化吸入,治疗组给予超声雾化吸入痰热清注射液,每日2次,疗程7 d。结果治疗后两组莱切斯...目的观察痰热清注射液超声雾化吸入治疗慢性支气管炎急性发作的效果并探讨其机制。方法60例住院患者随机分为治疗组和对照组各30例,对照组以沐舒坦雾化吸入,治疗组给予超声雾化吸入痰热清注射液,每日2次,疗程7 d。结果治疗后两组莱切斯特评分明显下降(P<0.05),第5天夜间咳嗽评分明显升高(P<0.05),组间差异有统计学意义(P<0.05);两组痰液中白细胞介素-6(IL-6)和黏蛋白MUC5AC水平均明显升高(P<0.05),组间差异有统计学意义(P<0.05);SP水平组间比较差异无统计学意义(P>0.05);治疗组咳嗽缓解时间明显短于对照组(P<0.05)。治疗组治疗后MUC5AC m RNA水平明显低于治疗前(P<0.05)。结论雾化吸入痰热清注射液可以通过降低IL-6水平而直接降低气道炎症、通过降低黏蛋白MUC5AC水平而减少气道黏液分泌,进而快速改善慢性支气管炎急性发作主要临床症状和气道黏液高分泌状态。尚不明确本疗法对气道神经源性炎症反应的干预情况。展开更多
BACKGROUND Colorectal cancer(CRC)is the third most common cancer and the second most common cause of cancer-related death worldwide.The 5-year survival rate of patients with early-stage CRC could reach 90%,but it is v...BACKGROUND Colorectal cancer(CRC)is the third most common cancer and the second most common cause of cancer-related death worldwide.The 5-year survival rate of patients with early-stage CRC could reach 90%,but it is very low in patients with advanced-stage CRC.Recent studies have shown that circular RNAs play important roles in regulating the migration and invasion of CRC cells.AIM To elucidate the role of circRNA_0084927(circ_0084927)in the migration and invasion of CRC cells and its underlying mechanism.METHODS Clinical tissue samples and cells were collected,and the expression of circ_0084927 was detected by quantitative polymerase chain reaction(qPCR).The diagnostic performance of circ_0084927 was assessed by receiver operating characteristic curve analysis.The role of circ_0084927 in CRC cell proliferation,migration,and invasion was determined using cell counting kit-8 assay,wound healing assay,and transwell assay,respectively.The regulatory relationship among circ_0084927,miRNA-20b-3p(miR-20b-3p),and glutathione S-transferase mu 5(GSTM5)was identified using databases,luciferase reporter assay,qPCR,and Western blot analysis.AKT-mTOR signaling was also verified after circ_0084927 knockdown or miR-20b-3p mimic treatment.RESULTS The expression of circ_0084927 was significantly increased in CRC tissues and cells,and it was higher in advanced-stage CRC compared with early-stage CRC.The area under the curve(AUC)of circ_0084927 was 0.806[95%confidence interval(CI):0.683-0.896].In addition,the AUC was 0.874(95%CI:0.738-0.956)in patients with advanced-stage CRC and 0.713(95%CI:0.555-0.840)in those with early-stage CRC.Knockdown of circ_0084927 inhibited the migration and invasion of HCT116 cells.Moreover,circ_0084927 was found to act as a sponge of miR-20b-3p.MiR-20b-3p activation reduced the circ_0084927 level,whereas miR-20b-3p inhibition increased the circ_0084927 level.But the effect was not found after circ_0084927 mutation.In addition,miR-20b-3p expression in CRC patients was also reduced and negatively correlated with circ_0084927 expression.The function of circ_0084927 in HCT116 cells with circ_0084927 knockdown was rescued by miR-20b-3p.Moreover,GSTM5 expression was significantly decreased after overexpressing miR-20b-3p or inhibiting circ_0084927,but its expression was rescued when circ_0084927 and miR-20b-3p were both inhibited.Finally,AKTmTOR signaling was markedly regulated by circ_0084927 and miR-20b-3p.CONCLUSION The expression of circ_0084927 is significantly increased in CRC and higher in advanced-stage CRC than in early-stage CRC.Moreover,circ_0084927 potentially regulates CRC cell migration and invasion via the miR-20b-3p/GSTM5/AKT/mTOR pathway.展开更多
文摘目的观察痰热清注射液超声雾化吸入治疗慢性支气管炎急性发作的效果并探讨其机制。方法60例住院患者随机分为治疗组和对照组各30例,对照组以沐舒坦雾化吸入,治疗组给予超声雾化吸入痰热清注射液,每日2次,疗程7 d。结果治疗后两组莱切斯特评分明显下降(P<0.05),第5天夜间咳嗽评分明显升高(P<0.05),组间差异有统计学意义(P<0.05);两组痰液中白细胞介素-6(IL-6)和黏蛋白MUC5AC水平均明显升高(P<0.05),组间差异有统计学意义(P<0.05);SP水平组间比较差异无统计学意义(P>0.05);治疗组咳嗽缓解时间明显短于对照组(P<0.05)。治疗组治疗后MUC5AC m RNA水平明显低于治疗前(P<0.05)。结论雾化吸入痰热清注射液可以通过降低IL-6水平而直接降低气道炎症、通过降低黏蛋白MUC5AC水平而减少气道黏液分泌,进而快速改善慢性支气管炎急性发作主要临床症状和气道黏液高分泌状态。尚不明确本疗法对气道神经源性炎症反应的干预情况。
文摘BACKGROUND Colorectal cancer(CRC)is the third most common cancer and the second most common cause of cancer-related death worldwide.The 5-year survival rate of patients with early-stage CRC could reach 90%,but it is very low in patients with advanced-stage CRC.Recent studies have shown that circular RNAs play important roles in regulating the migration and invasion of CRC cells.AIM To elucidate the role of circRNA_0084927(circ_0084927)in the migration and invasion of CRC cells and its underlying mechanism.METHODS Clinical tissue samples and cells were collected,and the expression of circ_0084927 was detected by quantitative polymerase chain reaction(qPCR).The diagnostic performance of circ_0084927 was assessed by receiver operating characteristic curve analysis.The role of circ_0084927 in CRC cell proliferation,migration,and invasion was determined using cell counting kit-8 assay,wound healing assay,and transwell assay,respectively.The regulatory relationship among circ_0084927,miRNA-20b-3p(miR-20b-3p),and glutathione S-transferase mu 5(GSTM5)was identified using databases,luciferase reporter assay,qPCR,and Western blot analysis.AKT-mTOR signaling was also verified after circ_0084927 knockdown or miR-20b-3p mimic treatment.RESULTS The expression of circ_0084927 was significantly increased in CRC tissues and cells,and it was higher in advanced-stage CRC compared with early-stage CRC.The area under the curve(AUC)of circ_0084927 was 0.806[95%confidence interval(CI):0.683-0.896].In addition,the AUC was 0.874(95%CI:0.738-0.956)in patients with advanced-stage CRC and 0.713(95%CI:0.555-0.840)in those with early-stage CRC.Knockdown of circ_0084927 inhibited the migration and invasion of HCT116 cells.Moreover,circ_0084927 was found to act as a sponge of miR-20b-3p.MiR-20b-3p activation reduced the circ_0084927 level,whereas miR-20b-3p inhibition increased the circ_0084927 level.But the effect was not found after circ_0084927 mutation.In addition,miR-20b-3p expression in CRC patients was also reduced and negatively correlated with circ_0084927 expression.The function of circ_0084927 in HCT116 cells with circ_0084927 knockdown was rescued by miR-20b-3p.Moreover,GSTM5 expression was significantly decreased after overexpressing miR-20b-3p or inhibiting circ_0084927,but its expression was rescued when circ_0084927 and miR-20b-3p were both inhibited.Finally,AKTmTOR signaling was markedly regulated by circ_0084927 and miR-20b-3p.CONCLUSION The expression of circ_0084927 is significantly increased in CRC and higher in advanced-stage CRC than in early-stage CRC.Moreover,circ_0084927 potentially regulates CRC cell migration and invasion via the miR-20b-3p/GSTM5/AKT/mTOR pathway.
