Objective:To evaluate the effect of myricetin on ovalbumin(OVA)-induced allergic rhinitis in mice.Methods:Mice were sensitized and challenged using OVA(5%,500 mL)intraperitoneally and intranasally,respectively,on an a...Objective:To evaluate the effect of myricetin on ovalbumin(OVA)-induced allergic rhinitis in mice.Methods:Mice were sensitized and challenged using OVA(5%,500 mL)intraperitoneally and intranasally,respectively,on an alternative day for 14 days,followed by administration of myricetin(50,100,and 200 mg/kg)till day 21.Nasal symptoms,biochemical parameters,protein expressions,and histopathology were observed.Results:OVA-induced increased nasal symptoms including rubbing,sneezing,and discharge were significantly reduced by myricetin(100and 200 mg/kg)(P<0.05).Myricetin also protected against histamine challenge and attenuated elevated serum immunoglobulin E(IgE;total and OVA-specific),total IgG1,andβ-hexosaminidase levels,as well as leukotriene C4 and interleukins levels in nasal lavage fluid(P<0.05).Western blot analysis showed that myricetin significantly upregulated the protein expression of T-box expressed in T cells,while downregulating the protein expression of GATA binding protein 3,NF-κB,and IκB-α(P<0.05).Additionally,OVA-induced histopathological abberations in the nasal mucosa was markedly ameliorated by myricetin treatment(P<0.05).Conclusions:Myricetin exerts anti-allergic effects against OVAinduced allergic rhinitis via regulating Th1/Th2 balance.展开更多
目的观察苏沈九宝汤治疗支气管哮喘急性发作期的临床疗效和对Th1/Th2因子的影响。方法选取2022年2月至2023年5月于浙江中医药大学附属四省边际中医院诊治的98例支气管哮喘急性发作期患者,根据随机数字表法将其分为治疗组和对照组,每组...目的观察苏沈九宝汤治疗支气管哮喘急性发作期的临床疗效和对Th1/Th2因子的影响。方法选取2022年2月至2023年5月于浙江中医药大学附属四省边际中医院诊治的98例支气管哮喘急性发作期患者,根据随机数字表法将其分为治疗组和对照组,每组各49例。对照组患者给予吸氧、雾化等常规治疗,治疗组患者在对照组基础上加用苏沈九宝汤。比较两组患者的临床疗效、中医证候积分、肺功能指标[第一秒用力呼气量(forced expiratory volume in first second,FEV1)、呼气流量峰值(peak expiratory flow,PEF)]和实验室指标[白细胞介素(interleukin,IL)-4、IL-13、γ干扰素(interferon-γ,IFN-γ)、免疫球蛋白E(immunoglobulin E,IgE)]。结果治疗组患者的总有效率显著高于对照组(χ^(2)=9.287,P=0.010);治疗后,两组患者的中医证候积分、血清IL-4、IL-13、IgE水平均显著低于本组治疗前,FEV_(1)、PEF、IFN-γ水平均显著高于本组治疗前(P<0.05),治疗组患者的中医证候积分、血清IL-4、IL-13、IgE水平均显著低于对照组,FEV1、PEF、IFN-γ水平均显著高于对照组(P<0.05)。结论苏沈九宝汤治疗支气管哮喘急性发作,可显著提高临床疗效,降低患者的炎症因子水平,改善肺功能。展开更多
文摘Objective:To evaluate the effect of myricetin on ovalbumin(OVA)-induced allergic rhinitis in mice.Methods:Mice were sensitized and challenged using OVA(5%,500 mL)intraperitoneally and intranasally,respectively,on an alternative day for 14 days,followed by administration of myricetin(50,100,and 200 mg/kg)till day 21.Nasal symptoms,biochemical parameters,protein expressions,and histopathology were observed.Results:OVA-induced increased nasal symptoms including rubbing,sneezing,and discharge were significantly reduced by myricetin(100and 200 mg/kg)(P<0.05).Myricetin also protected against histamine challenge and attenuated elevated serum immunoglobulin E(IgE;total and OVA-specific),total IgG1,andβ-hexosaminidase levels,as well as leukotriene C4 and interleukins levels in nasal lavage fluid(P<0.05).Western blot analysis showed that myricetin significantly upregulated the protein expression of T-box expressed in T cells,while downregulating the protein expression of GATA binding protein 3,NF-κB,and IκB-α(P<0.05).Additionally,OVA-induced histopathological abberations in the nasal mucosa was markedly ameliorated by myricetin treatment(P<0.05).Conclusions:Myricetin exerts anti-allergic effects against OVAinduced allergic rhinitis via regulating Th1/Th2 balance.
文摘目的观察苏沈九宝汤治疗支气管哮喘急性发作期的临床疗效和对Th1/Th2因子的影响。方法选取2022年2月至2023年5月于浙江中医药大学附属四省边际中医院诊治的98例支气管哮喘急性发作期患者,根据随机数字表法将其分为治疗组和对照组,每组各49例。对照组患者给予吸氧、雾化等常规治疗,治疗组患者在对照组基础上加用苏沈九宝汤。比较两组患者的临床疗效、中医证候积分、肺功能指标[第一秒用力呼气量(forced expiratory volume in first second,FEV1)、呼气流量峰值(peak expiratory flow,PEF)]和实验室指标[白细胞介素(interleukin,IL)-4、IL-13、γ干扰素(interferon-γ,IFN-γ)、免疫球蛋白E(immunoglobulin E,IgE)]。结果治疗组患者的总有效率显著高于对照组(χ^(2)=9.287,P=0.010);治疗后,两组患者的中医证候积分、血清IL-4、IL-13、IgE水平均显著低于本组治疗前,FEV_(1)、PEF、IFN-γ水平均显著高于本组治疗前(P<0.05),治疗组患者的中医证候积分、血清IL-4、IL-13、IgE水平均显著低于对照组,FEV1、PEF、IFN-γ水平均显著高于对照组(P<0.05)。结论苏沈九宝汤治疗支气管哮喘急性发作,可显著提高临床疗效,降低患者的炎症因子水平,改善肺功能。
