Objective:To objectively evaluate the clinical effect of traditional Chinese medicine in treating children s respiratory syncytial viral pneumonia(RSVP) of phlegm-heat blocking Fei(肺) syndrome(PHBFS). Methods:A singl...Objective:To objectively evaluate the clinical effect of traditional Chinese medicine in treating children s respiratory syncytial viral pneumonia(RSVP) of phlegm-heat blocking Fei(肺) syndrome(PHBFS). Methods:A single-blinded multi-center,blocked,randomized and parallel-controlled method was adopted.The clinical study was carried out on 206 children with RSVP-PHBFS who were assigned to two groups,108 in the test group treated through intravenous dripping of Qingkailing Injection(清开灵注射液) in combination of or...展开更多
BACKGROUND Respiratory syncytial virus(RSV) is a leading cause of lower respiratory infections among children.AIM To investigate the proportion of RSV and non-RSV respiratory viral infections among hospitalized childr...BACKGROUND Respiratory syncytial virus(RSV) is a leading cause of lower respiratory infections among children.AIM To investigate the proportion of RSV and non-RSV respiratory viral infections among hospitalized children ≤ 5 years.METHODS Hospitalized children aged < 5 years, with a diagnosis of acute lower respiratory infections(ALRI), admitted between August 2011-August 2013, were included.Cases were defined as laboratory-confirmed RSV and non-RSV respiratory viruses by direct fluorescence assay from the nasopharyngeal wash.RESULTS Of 383 1-59 mo old children hospitalized with an acute lower respiratory infection, 33.9%(130/383) had evidence of viral infection, and RSV was detected in 24.5%(94/383). Co-infections with RSV and other respiratory viruses(influenza A or B, adenovirus, para influenza 1, 2 or 3) were seen in children 5.5%(21/383). Over 90% of the RSV-positive children were under 2 years of age. RSV was detected throughout the year with peaks seen after the monsoon season.Children hospitalized with RSV infection were more likely to have been exposed to a shorter duration of breastfeeding of less than 3 mo. RSV positive children had a shorter hospital stay, although there were significant complications requiring intensive care. Use of antibiotics was high among those with RSV and non-RSV viral infections.CONCLUSION Our study provides evidence of a high proportion of RSV and other virusassociated ALRI among hospitalized children in India. RSV infection was associated with fewer days of hospital stay compared to other causes of lower respiratory infections. A high level of antibiotic use was seen among all respiratory virus-associated hospitalizations. These results suggest the need for implementing routine diagnostics for respiratory pathogens in order to minimize the use of unnecessary antibiotics and plan prevention strategies among pediatric populations.展开更多
Objective:Qingfei oral liquid(QF),an experimental Chinese medicine prescription developed from the ancient priscription of traditional Chinese medicines Ma Xin Shi Gan decoction and Tingli Dazao Xie Fei decoction,has ...Objective:Qingfei oral liquid(QF),an experimental Chinese medicine prescription developed from the ancient priscription of traditional Chinese medicines Ma Xin Shi Gan decoction and Tingli Dazao Xie Fei decoction,has been effectively used since decades to treat patients with viral pneumonia and asthma.In our previous study,we had demonstrated that QF can significantly reduce airway hyperresponsiveness,hyperemia,lung tissue edema,inflammatory lung tissue infiltration in mice,airway mucus secretion,and peripheral airway collagen hyperplasia;however,its mechanism of action is unknown.Methods:Fifty 6–8-week-old male BALB/c mice were equally and randomly divided into five groups:the control,ovalbumin(OVA),OVA+respiratory syncytial virus(RSV),QF,and dexamethasone(Dxms)groups.The QF group was administered QF at 1.17 g·kg−1·d−1,the Dxms group received dexamethasone injections at 0.2 mg·kg−1·d−1,and the remaining groups were administered PBS.Inflammation in the lung tissue was assessed by hematoxylin and eosin(HE),periodic acid–Schiff(PAS),and Van Gieson staining.ELISA was used to evaluate the IL-13,IL-25,and IL-33 in the mice.Western blotting was used to examine changes in the proteins levels of transient receptor potential vanilloid-1(TRPV1)and mucin 5AC(MUC5AC)in the lung tissues of mice.Results:Histopathological evaluation revealed that the OVA and OVA+RSV groups exhibited lung tissue edema and inflammatory lung tissue infiltration in the HE staining and airway secretions in the PAS staining;collagen hyperplasia around the airway was increased in these two groups compared with the control group.The QF group exhibited significantly reduced lung tissue edema,inflammatory lung tissue infiltration,airway secretions,and collagen hyperplasia around the airway compared with the OVA+RSV group.We analyzed the serum levels of IL-13,IL-25,and IL-33 in the mice and found that these levels were higher in the OVA and OVA+RSV groups than in the control group(P<0.05 in the OVA group,P<0.01 in the OVA+RSV group).The QF group exhibited significantly decreased serum levels of IL-13,IL-25,and IL-33 compared with the OVA+RSV group(all P<0.05).The Dxms group also exhibited significant decreases in the serum levels of IL-13 and IL-33(all P<0.05)but no significant decrease in the serum levels of IL-25 compared with the RSV+OVA group.Finally,we examined the protein levels of TRPV1 and MUC5AC in the lung tissues of mice using Western blotting.After identifying RSV infection in the mice with asthma,the protein levels of TRPV1 and MUC5AC in the lung tissues of mice were significantly higher than those in the control group(P<0.05,P<0.01).We found that compared with RSV+OVA,QF can significantly downregulate the protein level of TRPV1;further,the protein level of MUC5AC was also significantly reduced(all P<0.001).Conclusion:QF can inhibit RSV replication and reduce airway inflammation and mucus hypersecretion injury caused by RSV infection and asthma,and its mechanism of action may be associated with the downregulation of TRPV1 expression and a decrease in airway mucus hypersecretion injury.展开更多
目的:通过观察清肺通络膏及其拆方对大鼠呼吸道合胞病毒肺炎肺组织MAPK信号通路的影响,探讨清肺通络膏对大鼠呼吸道合胞病毒肺炎的防治机制。方法:以呼吸道合胞病毒滴鼻感染大鼠,治疗组分别予清肺通络膏全方、主药和辅药干预。感染病毒...目的:通过观察清肺通络膏及其拆方对大鼠呼吸道合胞病毒肺炎肺组织MAPK信号通路的影响,探讨清肺通络膏对大鼠呼吸道合胞病毒肺炎的防治机制。方法:以呼吸道合胞病毒滴鼻感染大鼠,治疗组分别予清肺通络膏全方、主药和辅药干预。感染病毒后第7天,实时荧光定量PCR(real time RT-PCR)检测大鼠肺组织中p38、ERK、JNK m RNA的含量,western blot的方法观察肺组织中p-p38、p-ERK、p-JNK蛋白水平。结果:正常组和模型组肺组织中均可检测到p38、ERK2、JNK1 m RNA表达及p-p38、p-ERK、p-JNK蛋白表达,但模型组明显高于正常组(P<0.05)。治疗组中清肺通络膏全方组p38、ERK2、JNK1 m RNA表达及p-p38、p-ERK、pJNK蛋白表达最低,与主药组、辅药组比较有显著性差异(P<0.05)。结论:呼吸道合胞病毒感染大鼠时激活了MAPK信号通路,清肺通络膏全方组能较好的抑制MAPK信号通路的活化,且优于主药及辅药组。展开更多
基金Supported by the National Key Technologies Research and Development Program of China during the 10th Five-Year PlanPeriod(No.2004BA716B03)
文摘Objective:To objectively evaluate the clinical effect of traditional Chinese medicine in treating children s respiratory syncytial viral pneumonia(RSVP) of phlegm-heat blocking Fei(肺) syndrome(PHBFS). Methods:A single-blinded multi-center,blocked,randomized and parallel-controlled method was adopted.The clinical study was carried out on 206 children with RSVP-PHBFS who were assigned to two groups,108 in the test group treated through intravenous dripping of Qingkailing Injection(清开灵注射液) in combination of or...
文摘BACKGROUND Respiratory syncytial virus(RSV) is a leading cause of lower respiratory infections among children.AIM To investigate the proportion of RSV and non-RSV respiratory viral infections among hospitalized children ≤ 5 years.METHODS Hospitalized children aged < 5 years, with a diagnosis of acute lower respiratory infections(ALRI), admitted between August 2011-August 2013, were included.Cases were defined as laboratory-confirmed RSV and non-RSV respiratory viruses by direct fluorescence assay from the nasopharyngeal wash.RESULTS Of 383 1-59 mo old children hospitalized with an acute lower respiratory infection, 33.9%(130/383) had evidence of viral infection, and RSV was detected in 24.5%(94/383). Co-infections with RSV and other respiratory viruses(influenza A or B, adenovirus, para influenza 1, 2 or 3) were seen in children 5.5%(21/383). Over 90% of the RSV-positive children were under 2 years of age. RSV was detected throughout the year with peaks seen after the monsoon season.Children hospitalized with RSV infection were more likely to have been exposed to a shorter duration of breastfeeding of less than 3 mo. RSV positive children had a shorter hospital stay, although there were significant complications requiring intensive care. Use of antibiotics was high among those with RSV and non-RSV viral infections.CONCLUSION Our study provides evidence of a high proportion of RSV and other virusassociated ALRI among hospitalized children in India. RSV infection was associated with fewer days of hospital stay compared to other causes of lower respiratory infections. A high level of antibiotic use was seen among all respiratory virus-associated hospitalizations. These results suggest the need for implementing routine diagnostics for respiratory pathogens in order to minimize the use of unnecessary antibiotics and plan prevention strategies among pediatric populations.
基金This work was supported by Natural Science Foundation of China(81674020).
文摘Objective:Qingfei oral liquid(QF),an experimental Chinese medicine prescription developed from the ancient priscription of traditional Chinese medicines Ma Xin Shi Gan decoction and Tingli Dazao Xie Fei decoction,has been effectively used since decades to treat patients with viral pneumonia and asthma.In our previous study,we had demonstrated that QF can significantly reduce airway hyperresponsiveness,hyperemia,lung tissue edema,inflammatory lung tissue infiltration in mice,airway mucus secretion,and peripheral airway collagen hyperplasia;however,its mechanism of action is unknown.Methods:Fifty 6–8-week-old male BALB/c mice were equally and randomly divided into five groups:the control,ovalbumin(OVA),OVA+respiratory syncytial virus(RSV),QF,and dexamethasone(Dxms)groups.The QF group was administered QF at 1.17 g·kg−1·d−1,the Dxms group received dexamethasone injections at 0.2 mg·kg−1·d−1,and the remaining groups were administered PBS.Inflammation in the lung tissue was assessed by hematoxylin and eosin(HE),periodic acid–Schiff(PAS),and Van Gieson staining.ELISA was used to evaluate the IL-13,IL-25,and IL-33 in the mice.Western blotting was used to examine changes in the proteins levels of transient receptor potential vanilloid-1(TRPV1)and mucin 5AC(MUC5AC)in the lung tissues of mice.Results:Histopathological evaluation revealed that the OVA and OVA+RSV groups exhibited lung tissue edema and inflammatory lung tissue infiltration in the HE staining and airway secretions in the PAS staining;collagen hyperplasia around the airway was increased in these two groups compared with the control group.The QF group exhibited significantly reduced lung tissue edema,inflammatory lung tissue infiltration,airway secretions,and collagen hyperplasia around the airway compared with the OVA+RSV group.We analyzed the serum levels of IL-13,IL-25,and IL-33 in the mice and found that these levels were higher in the OVA and OVA+RSV groups than in the control group(P<0.05 in the OVA group,P<0.01 in the OVA+RSV group).The QF group exhibited significantly decreased serum levels of IL-13,IL-25,and IL-33 compared with the OVA+RSV group(all P<0.05).The Dxms group also exhibited significant decreases in the serum levels of IL-13 and IL-33(all P<0.05)but no significant decrease in the serum levels of IL-25 compared with the RSV+OVA group.Finally,we examined the protein levels of TRPV1 and MUC5AC in the lung tissues of mice using Western blotting.After identifying RSV infection in the mice with asthma,the protein levels of TRPV1 and MUC5AC in the lung tissues of mice were significantly higher than those in the control group(P<0.05,P<0.01).We found that compared with RSV+OVA,QF can significantly downregulate the protein level of TRPV1;further,the protein level of MUC5AC was also significantly reduced(all P<0.001).Conclusion:QF can inhibit RSV replication and reduce airway inflammation and mucus hypersecretion injury caused by RSV infection and asthma,and its mechanism of action may be associated with the downregulation of TRPV1 expression and a decrease in airway mucus hypersecretion injury.
文摘目的:通过观察清肺通络膏及其拆方对大鼠呼吸道合胞病毒肺炎肺组织MAPK信号通路的影响,探讨清肺通络膏对大鼠呼吸道合胞病毒肺炎的防治机制。方法:以呼吸道合胞病毒滴鼻感染大鼠,治疗组分别予清肺通络膏全方、主药和辅药干预。感染病毒后第7天,实时荧光定量PCR(real time RT-PCR)检测大鼠肺组织中p38、ERK、JNK m RNA的含量,western blot的方法观察肺组织中p-p38、p-ERK、p-JNK蛋白水平。结果:正常组和模型组肺组织中均可检测到p38、ERK2、JNK1 m RNA表达及p-p38、p-ERK、p-JNK蛋白表达,但模型组明显高于正常组(P<0.05)。治疗组中清肺通络膏全方组p38、ERK2、JNK1 m RNA表达及p-p38、p-ERK、pJNK蛋白表达最低,与主药组、辅药组比较有显著性差异(P<0.05)。结论:呼吸道合胞病毒感染大鼠时激活了MAPK信号通路,清肺通络膏全方组能较好的抑制MAPK信号通路的活化,且优于主药及辅药组。
