Background:The influenza A virus is the primary cause of respiratory infections and poses a global health risk.Pudilan Xiaoyan oral liquid(PDL)exhibits anti-inflammatory and immunomodulatory properties.PDL is commonly...Background:The influenza A virus is the primary cause of respiratory infections and poses a global health risk.Pudilan Xiaoyan oral liquid(PDL)exhibits anti-inflammatory and immunomodulatory properties.PDL is commonly employed in clinical practice to manage upper respiratory tract infections.However,there is still much to uncover regarding its potential therapeutic mechanism.Methods:Institute of cancer research mice were infected with influenza A virus via nasal drip.The general state of the mice,lung index,and lung index inhibition rate were used to evaluate the efficacy of PDL.Enzyme-linked immunosorbent assay,western blotting,and immunohistochemistry were used to observe the presence of proteins and cytokines in the lung tissue.Apoptosis was evaluated using the TUNEL assay.Results:PDL improved the mental state of influenza A virus-infected mice,reduced the lung index,and inhibited viral replication.The expression of interleukin-1βand tumor necrosis factor-αwere decreased,whereas the expression of interleukin-10 in the lung tissue was increased due to PDL treatment.In addition,PDL treatment modulated Toll-like receptor 4 and MyD88 expressions in the lung tissues.PDL significantly reduced apoptosis and decreased cleaved caspase-3 and PARP levels,whereas increased B-cell lymphoma-2 expression in the lung tissue.Notably,the moderate-dose group of PDL exhibited a more pronounced effect.These findings indicate that PDL exerts a protective effect against pneumonia injury in influenza A virus-infected mice.Conclusion:PDL inhibited the inflammatory response and regulated apoptosis by regulating Toll-like receptor 4 and MyD88 protein expressions,thereby protecting the lung tissue from viral infection-induced lung tissue injury.展开更多
Background:Pudilan Xiaoyan Oral Liquid(PDL)is a Chinese patent medicine with notable pharmacological properties,including anti-inflammatory and antibacterial effects.Drug-resistant Pseudomonas aeruginosa infection is ...Background:Pudilan Xiaoyan Oral Liquid(PDL)is a Chinese patent medicine with notable pharmacological properties,including anti-inflammatory and antibacterial effects.Drug-resistant Pseudomonas aeruginosa infection is a common and refractory bacterial infection in clinical practice.Due to its high drug resistance,it brings great challenges to treatment.This study aimed to assess the therapeutic efficacy of PDL in a murine model of pneumonia induced by drug-resistant Pseudomonas aeruginosa.Methods:Three different doses of PDL(11 mL/kg/d,5.5 mL/kg/d,2.75 mL/kg/d)were used to observe lung tissue pathology and inflammatory cytokine levels in pneumonia mouse models induced by multidrug-resistant Pseudomonas aeruginosa(MDR-PA).Additionally,the protective efficacy of PDL against mortality in infected mice was evaluated using a death model caused by MDR-PA.Finally sub-MIC concentration of levofloxacin was used to induce drug-resistant mice pneumonia model to evaluate the role of PDL in reversing drug resistance.Experimental data are expressed as mean±standard deviation.Statistical significance was determined by one-way analysis of variance followed by Tukey’s multiple-comparisons test.Results:Treatment effect of PDL on MDR-PA pneumonia:the medium and small doses of PDL can significantly reduce the lung index of multi-drug resistant bacteria infected pneumonia model mice(P<0.05),the lung index inhibition rates for these groups were 55.09%and 58.43%,and improve the degree of lung tissue lesions of mice;The expression of serum cytokines keratinocyte chemoattractant,tumor necrosis factor-αand monocyte chemoattractant protein-1 could be decreased in the three dosage groups of PDL(P<0.01).PDL treatment not only lowered the mortality but also extended the survival duration in mice infected with MDR-PA.It was found after sub-MIC concentration of levofloxacin induced resistance of Pseudomonas aeruginosa to pneumonia in mice.Compared with the model group,the lung index of mice in high and medium PDL doses was significantly reduced(P<0.05),with inhibition rates of 32.16%and 37.73%,respectively.Conclusion:PDL demonstrates protective effects against MDR-PA infection pneumonia,notably decreasing serum inflammatory factor levels.It shows promise in mitigating antibiotic resistance and offers potential for treating pneumonia resulting from Pseudomonas aeruginosa resistance.展开更多
Background:Pudilan Xiaoyan Oral Liquid(PDL),a famous traditional Chinese formula for treating acute and chronic inflammation.To evaluate the broad-spectrum antiviral effect of Pudilan Xiaoyan Oral Liquid,and provide a...Background:Pudilan Xiaoyan Oral Liquid(PDL),a famous traditional Chinese formula for treating acute and chronic inflammation.To evaluate the broad-spectrum antiviral effect of Pudilan Xiaoyan Oral Liquid,and provide a basis for clinical medication.Methods:Its inhibitory effect on different respiratory viruses was observed by cytopathic test.The potential mechanism of the anti-influenza effect was determined by neuraminidase activity.In order to observe the therapeutic effect of PDL on viral pneumonia caused by different respiratory viruses.The viral pneumonia model was established by nasal infection with different respiratory viruses,and then PDL was given Therapeutic and prophylactically to evaluate its pharmacodynamic activity in vivo.Results:The results of in vitro experiments showed that PDL had different inhibitory effects on cytopathic effects caused by different respiratory viruses.And it has obvious inhibitory effect on the neuraminidase activity of influenza A virus,which indicates that it exerts anti-influenza virus effect by inhibiting neuraminidase activity of influenza virus.The results in vivo showed that PDL exhibited an inhibitory effect on pulmonary index(PI)and effectively reduced the degree of lesions in the lungs.The lethal rate of mice was significantly decreased while survival time of mice was dramatically increased by PDL treatment in comparison to infection control,respectively.Conclusions:Our study demonstrates that PDL had a significant protection and treatment effect for respiratory virus infection in vitro and in vivo.展开更多
To systematically evaluate the efficacy and safety of Pudilan Xiaoyan Oral in Liquid(蒲地蓝消炎口服液)in the treatment of suppurative tonsillitis in children.In WanFang,CNKI,VIP,CBM,PubMed,Embase and Corchrane and oth...To systematically evaluate the efficacy and safety of Pudilan Xiaoyan Oral in Liquid(蒲地蓝消炎口服液)in the treatment of suppurative tonsillitis in children.In WanFang,CNKI,VIP,CBM,PubMed,Embase and Corchrane and other databases,relevant literatures about Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)in the treatment of pediatric suppurative tonsillitis were searched.The retrieval time was from the establishment of the database to April 2019.Relevant randomized controlled trials were extracted.The control group was treated with conventional antibiotics,and the observation group was treated with Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)based on the control group.After they were summarized and analyzed,Cochrane Handbook 5.1 evaluation standard and RevMan 5.3 software were used to determine the quality of literature.A total of 172 literatures were retrieved and 23 randomized controlled trials were included.A total of 1188 children were in the experimental group while 1175 children were in the control group,involving 2363 children with suppurative tonsillitis.Meta-analysis showed that the total effective rate of Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment was better than that of routine treatment(RR=0.88,95%CI(0.86,0.91),P<0.00001);Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment in children was better than that of routine treatment alone in term of temperature recovery,sore throat time,the reduction of tonsil purulent secretion.There were few reports of adverse reactions and no serious adverse reactions.To sum up,Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment can significantly improve the efficacy of children with suppurative tonsillitis,but due to the low quality of the included literature,it should be used cautiously.It is suggested that clinical randomized controlled trials should be designed with large sample size,multi-centers and conforming to international standards to improve the quality of evidence.展开更多
Objective: Allergic asthma(AA) is a chronic airway infiammatory disease characterized by airway hyper-responsiveness(AHR). Pudilan anti-infiammatory oral liquid(PDL), along with its main medicinal material, Taraxaci H...Objective: Allergic asthma(AA) is a chronic airway infiammatory disease characterized by airway hyper-responsiveness(AHR). Pudilan anti-infiammatory oral liquid(PDL), along with its main medicinal material, Taraxaci Herba(Taraxacum mongolicum Hand.-Mazz, TH),has been widely used to treat upper respiratory tract infections. Research has shown that the major ingredient of TH, the organic acid component(OAC), possesses favorable AA activity. However, the attenuated effects of PDL and OAC from TH(TH-OAC) on AA and their possible mechanisms remain poorly understood. This study analyzed the attenuating effects of PDL and TH-OAC on AA and the underlying mechanisms. Methods: Young BALB/c mice were sensitized and stimulated to develop asthma using ovalbumin. Histological examinations were performed by hematoxylin and eosin staining. Western blotting, immunohistochemistry, and protein expression detection of toll-like receptor 2(TLR2), TLR4, and orosomucoid 1-like protein 3(ORMDL3) were performed to detect the presence of infiammatory components in the lung tissue. The messenger RNA(mRNA) expression levels were determined using quantitative real-time polymerase chain reaction.Results: Results showed that PDL and TH-OAC alleviated augmented AHR and typical asthmatic pathological changes, including infiammatory infiltration and thickening of the alveolar wall. They also significantly reduced the levels of the immunoglobulin E, IL-4, IL-5, IL-6, tumor necrosis factor-α, and Nitric oxide(NO) in lung tissues of mice. Protein and mRNA expression levels of TLR2, TLR4, and ORMDL3 were downregulated following treatment with PDL and TH-OAC. Conclusions: PDL and TH-OAC can reduce asthma-induced infiammatory damage to the bronchi. These results provide a theoretical basis for the treatment of asthma in clinical settings.展开更多
基金funded by Scientific and Technological Innovation Project of China Academy of Chinese Medical Sciences,grant number CI2021A04608National Natural Science Foundation of China,grant number 82141206.
文摘Background:The influenza A virus is the primary cause of respiratory infections and poses a global health risk.Pudilan Xiaoyan oral liquid(PDL)exhibits anti-inflammatory and immunomodulatory properties.PDL is commonly employed in clinical practice to manage upper respiratory tract infections.However,there is still much to uncover regarding its potential therapeutic mechanism.Methods:Institute of cancer research mice were infected with influenza A virus via nasal drip.The general state of the mice,lung index,and lung index inhibition rate were used to evaluate the efficacy of PDL.Enzyme-linked immunosorbent assay,western blotting,and immunohistochemistry were used to observe the presence of proteins and cytokines in the lung tissue.Apoptosis was evaluated using the TUNEL assay.Results:PDL improved the mental state of influenza A virus-infected mice,reduced the lung index,and inhibited viral replication.The expression of interleukin-1βand tumor necrosis factor-αwere decreased,whereas the expression of interleukin-10 in the lung tissue was increased due to PDL treatment.In addition,PDL treatment modulated Toll-like receptor 4 and MyD88 expressions in the lung tissues.PDL significantly reduced apoptosis and decreased cleaved caspase-3 and PARP levels,whereas increased B-cell lymphoma-2 expression in the lung tissue.Notably,the moderate-dose group of PDL exhibited a more pronounced effect.These findings indicate that PDL exerts a protective effect against pneumonia injury in influenza A virus-infected mice.Conclusion:PDL inhibited the inflammatory response and regulated apoptosis by regulating Toll-like receptor 4 and MyD88 protein expressions,thereby protecting the lung tissue from viral infection-induced lung tissue injury.
基金supported by Scientific and Technological Innovation Project of China Academy of Chinese Medical Sciences(No.CI2021B015)the Fundamental Research Funds for the Central Public Welfare Research Institutes(JJPY2022017).
文摘Background:Pudilan Xiaoyan Oral Liquid(PDL)is a Chinese patent medicine with notable pharmacological properties,including anti-inflammatory and antibacterial effects.Drug-resistant Pseudomonas aeruginosa infection is a common and refractory bacterial infection in clinical practice.Due to its high drug resistance,it brings great challenges to treatment.This study aimed to assess the therapeutic efficacy of PDL in a murine model of pneumonia induced by drug-resistant Pseudomonas aeruginosa.Methods:Three different doses of PDL(11 mL/kg/d,5.5 mL/kg/d,2.75 mL/kg/d)were used to observe lung tissue pathology and inflammatory cytokine levels in pneumonia mouse models induced by multidrug-resistant Pseudomonas aeruginosa(MDR-PA).Additionally,the protective efficacy of PDL against mortality in infected mice was evaluated using a death model caused by MDR-PA.Finally sub-MIC concentration of levofloxacin was used to induce drug-resistant mice pneumonia model to evaluate the role of PDL in reversing drug resistance.Experimental data are expressed as mean±standard deviation.Statistical significance was determined by one-way analysis of variance followed by Tukey’s multiple-comparisons test.Results:Treatment effect of PDL on MDR-PA pneumonia:the medium and small doses of PDL can significantly reduce the lung index of multi-drug resistant bacteria infected pneumonia model mice(P<0.05),the lung index inhibition rates for these groups were 55.09%and 58.43%,and improve the degree of lung tissue lesions of mice;The expression of serum cytokines keratinocyte chemoattractant,tumor necrosis factor-αand monocyte chemoattractant protein-1 could be decreased in the three dosage groups of PDL(P<0.01).PDL treatment not only lowered the mortality but also extended the survival duration in mice infected with MDR-PA.It was found after sub-MIC concentration of levofloxacin induced resistance of Pseudomonas aeruginosa to pneumonia in mice.Compared with the model group,the lung index of mice in high and medium PDL doses was significantly reduced(P<0.05),with inhibition rates of 32.16%and 37.73%,respectively.Conclusion:PDL demonstrates protective effects against MDR-PA infection pneumonia,notably decreasing serum inflammatory factor levels.It shows promise in mitigating antibiotic resistance and offers potential for treating pneumonia resulting from Pseudomonas aeruginosa resistance.
基金supported by the National Natural Science Foundation of China(No.81774204)Scientific and Technological Innovation Project of China Academy of Chinese Medical Sciences(No.CI2021A04608)。
文摘Background:Pudilan Xiaoyan Oral Liquid(PDL),a famous traditional Chinese formula for treating acute and chronic inflammation.To evaluate the broad-spectrum antiviral effect of Pudilan Xiaoyan Oral Liquid,and provide a basis for clinical medication.Methods:Its inhibitory effect on different respiratory viruses was observed by cytopathic test.The potential mechanism of the anti-influenza effect was determined by neuraminidase activity.In order to observe the therapeutic effect of PDL on viral pneumonia caused by different respiratory viruses.The viral pneumonia model was established by nasal infection with different respiratory viruses,and then PDL was given Therapeutic and prophylactically to evaluate its pharmacodynamic activity in vivo.Results:The results of in vitro experiments showed that PDL had different inhibitory effects on cytopathic effects caused by different respiratory viruses.And it has obvious inhibitory effect on the neuraminidase activity of influenza A virus,which indicates that it exerts anti-influenza virus effect by inhibiting neuraminidase activity of influenza virus.The results in vivo showed that PDL exhibited an inhibitory effect on pulmonary index(PI)and effectively reduced the degree of lesions in the lungs.The lethal rate of mice was significantly decreased while survival time of mice was dramatically increased by PDL treatment in comparison to infection control,respectively.Conclusions:Our study demonstrates that PDL had a significant protection and treatment effect for respiratory virus infection in vitro and in vivo.
基金National Key Research&Development Plan Project(2018YFC1707400,2018YFC1707410)Research Funding Project For Graduate Education Teaching Reform of China Academy of Chinese Medical Sciences(JG201703)
文摘To systematically evaluate the efficacy and safety of Pudilan Xiaoyan Oral in Liquid(蒲地蓝消炎口服液)in the treatment of suppurative tonsillitis in children.In WanFang,CNKI,VIP,CBM,PubMed,Embase and Corchrane and other databases,relevant literatures about Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)in the treatment of pediatric suppurative tonsillitis were searched.The retrieval time was from the establishment of the database to April 2019.Relevant randomized controlled trials were extracted.The control group was treated with conventional antibiotics,and the observation group was treated with Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)based on the control group.After they were summarized and analyzed,Cochrane Handbook 5.1 evaluation standard and RevMan 5.3 software were used to determine the quality of literature.A total of 172 literatures were retrieved and 23 randomized controlled trials were included.A total of 1188 children were in the experimental group while 1175 children were in the control group,involving 2363 children with suppurative tonsillitis.Meta-analysis showed that the total effective rate of Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment was better than that of routine treatment(RR=0.88,95%CI(0.86,0.91),P<0.00001);Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment in children was better than that of routine treatment alone in term of temperature recovery,sore throat time,the reduction of tonsil purulent secretion.There were few reports of adverse reactions and no serious adverse reactions.To sum up,Pudilan Xiaoyan Oral Liquid(蒲地蓝消炎口服液)combined with routine treatment can significantly improve the efficacy of children with suppurative tonsillitis,but due to the low quality of the included literature,it should be used cautiously.It is suggested that clinical randomized controlled trials should be designed with large sample size,multi-centers and conforming to international standards to improve the quality of evidence.
基金funded by the National Key R and D Program of China (2018YFC1706900, 2018YFC1706902)“Double First-Class” University project of China Pharmaceutical University (CPU2018GF07, CPU2018PZQ19)+1 种基金Jiangsu Provincial Administration of Traditional Chinese Medicine (YB201819)the Project Program of State Key Laboratory of Natural Medicines, China Pharmaceutical University (No. SKLNMZZ202025)
文摘Objective: Allergic asthma(AA) is a chronic airway infiammatory disease characterized by airway hyper-responsiveness(AHR). Pudilan anti-infiammatory oral liquid(PDL), along with its main medicinal material, Taraxaci Herba(Taraxacum mongolicum Hand.-Mazz, TH),has been widely used to treat upper respiratory tract infections. Research has shown that the major ingredient of TH, the organic acid component(OAC), possesses favorable AA activity. However, the attenuated effects of PDL and OAC from TH(TH-OAC) on AA and their possible mechanisms remain poorly understood. This study analyzed the attenuating effects of PDL and TH-OAC on AA and the underlying mechanisms. Methods: Young BALB/c mice were sensitized and stimulated to develop asthma using ovalbumin. Histological examinations were performed by hematoxylin and eosin staining. Western blotting, immunohistochemistry, and protein expression detection of toll-like receptor 2(TLR2), TLR4, and orosomucoid 1-like protein 3(ORMDL3) were performed to detect the presence of infiammatory components in the lung tissue. The messenger RNA(mRNA) expression levels were determined using quantitative real-time polymerase chain reaction.Results: Results showed that PDL and TH-OAC alleviated augmented AHR and typical asthmatic pathological changes, including infiammatory infiltration and thickening of the alveolar wall. They also significantly reduced the levels of the immunoglobulin E, IL-4, IL-5, IL-6, tumor necrosis factor-α, and Nitric oxide(NO) in lung tissues of mice. Protein and mRNA expression levels of TLR2, TLR4, and ORMDL3 were downregulated following treatment with PDL and TH-OAC. Conclusions: PDL and TH-OAC can reduce asthma-induced infiammatory damage to the bronchi. These results provide a theoretical basis for the treatment of asthma in clinical settings.
