目的比较不同产地、采收时间及不同炮制方法对余甘子中没食子酸和鞣花酸的含量影响。方法采用UPLC法建立测定余甘子中没食子酸和鞣花酸的方法,利用ACQUITY UPLC BEH C 18(100mm×2.1mm,1.7μm)色谱柱,柱温为30℃,流动相以甲醇-0.1%...目的比较不同产地、采收时间及不同炮制方法对余甘子中没食子酸和鞣花酸的含量影响。方法采用UPLC法建立测定余甘子中没食子酸和鞣花酸的方法,利用ACQUITY UPLC BEH C 18(100mm×2.1mm,1.7μm)色谱柱,柱温为30℃,流动相以甲醇-0.1%磷酸溶液测定没食子酸(检测波长273nm),以乙腈-0.2%磷酸溶液测定鞣花酸(检测波长254nm);体积流量为0.2mL·min^-1,进样量为10μL。测定余甘子不同产地、采收时间和不同炮制品种没食子酸和鞣花酸的含量影响。结果不同的产地中,广东潮汕(没食子酸25.20%、鞣花酸23.73%)、福建泉州(没食子酸26.28%、鞣花酸33.18%)、广西梧州(没食子酸26.59%、鞣花酸20.80%)、四川凉山(没食子酸27.59%、鞣花酸22.48%)、云南楚雄(没食子酸28.36%、鞣花酸25.59%),其中以云南楚雄的余甘子中没食子酸的含量为最高,其他四地产地含量略低;福建泉州的余甘子鞣花酸含量最高,其他四地含量偏低。不同采摘时间的数据均显示在每年的六月中旬季节采收所得的没食子酸和鞣花酸的含量是最高。经过不同炮制方法后,没食子酸的含量:生品>醋炙≈酒炙>盐炙>蜜炙,鞣花酸相比与生品,酒炙、盐炙和蜜炙含量有不同程度的上升,醋炙含量略微下降。结论不同产地、采收季节和炮制工艺对余甘子中的活性成分含量有影响。展开更多
Pharyngitis (an inflammation in the pharynx) is a commonly occurring symptom of upper respiratory tract infection in patients suffering from common cold. The high prevalence of upper respiratory tract infection necess...Pharyngitis (an inflammation in the pharynx) is a commonly occurring symptom of upper respiratory tract infection in patients suffering from common cold. The high prevalence of upper respiratory tract infection necessitates a safe and effective antiinflammatory agent for pharyngitis. Chinese herbal medicine, which has been clinically prescribed for thousands of years, may offer a basis for the treatment of common cold as well as the amelioration of pharyngitis. In the present study, we investigated the in vitro and in vivo anti-inflammatory activities of a Chinese herbal formula, namely GPC, which is comprised of Glycyrrhiza Radix, Platycodonis Radix, Citri Reticulatae Pericarpium, Phyllanthi Fructus and Taraxaci Herba. Incubation with GPC (30, 100 and 300 μg/mL) suppressed the releases of tumor necrosis factor α (TNF-α), interleukin 6 (IL-6) and nitric oxide in lipopolysaccharide/peptidoglycanactivated RAW264.7 macrophages. In addition to the cell-based study, long-term treatment with GPC (0.35, 1.05 and 2.10 mL/kg/day × 30 doses) was found to reduce the extent of inflammation in animal models of carrageenan-induced paw edema (acute inflammation) as well as cotton pellet-induced granuloma formation (chronic inflammation) in mice. The ability of GPC to enhance the tracheobronchial expectorant action suggested its immunomodulatory activity in the respiratory tract. This postulation was supported by the observation that GPC reduced the degree of pharyngitis and reversed the changes in plasma TNF-α and IL-6 levels in capsaicininduced pharyngitis in rats. The ensemble of results suggests that GPC may offer a promising prospect for alleviating the extent of pharyngitis by virtue of antiinflammatory activities.展开更多
文摘目的比较不同产地、采收时间及不同炮制方法对余甘子中没食子酸和鞣花酸的含量影响。方法采用UPLC法建立测定余甘子中没食子酸和鞣花酸的方法,利用ACQUITY UPLC BEH C 18(100mm×2.1mm,1.7μm)色谱柱,柱温为30℃,流动相以甲醇-0.1%磷酸溶液测定没食子酸(检测波长273nm),以乙腈-0.2%磷酸溶液测定鞣花酸(检测波长254nm);体积流量为0.2mL·min^-1,进样量为10μL。测定余甘子不同产地、采收时间和不同炮制品种没食子酸和鞣花酸的含量影响。结果不同的产地中,广东潮汕(没食子酸25.20%、鞣花酸23.73%)、福建泉州(没食子酸26.28%、鞣花酸33.18%)、广西梧州(没食子酸26.59%、鞣花酸20.80%)、四川凉山(没食子酸27.59%、鞣花酸22.48%)、云南楚雄(没食子酸28.36%、鞣花酸25.59%),其中以云南楚雄的余甘子中没食子酸的含量为最高,其他四地产地含量略低;福建泉州的余甘子鞣花酸含量最高,其他四地含量偏低。不同采摘时间的数据均显示在每年的六月中旬季节采收所得的没食子酸和鞣花酸的含量是最高。经过不同炮制方法后,没食子酸的含量:生品>醋炙≈酒炙>盐炙>蜜炙,鞣花酸相比与生品,酒炙、盐炙和蜜炙含量有不同程度的上升,醋炙含量略微下降。结论不同产地、采收季节和炮制工艺对余甘子中的活性成分含量有影响。
文摘Pharyngitis (an inflammation in the pharynx) is a commonly occurring symptom of upper respiratory tract infection in patients suffering from common cold. The high prevalence of upper respiratory tract infection necessitates a safe and effective antiinflammatory agent for pharyngitis. Chinese herbal medicine, which has been clinically prescribed for thousands of years, may offer a basis for the treatment of common cold as well as the amelioration of pharyngitis. In the present study, we investigated the in vitro and in vivo anti-inflammatory activities of a Chinese herbal formula, namely GPC, which is comprised of Glycyrrhiza Radix, Platycodonis Radix, Citri Reticulatae Pericarpium, Phyllanthi Fructus and Taraxaci Herba. Incubation with GPC (30, 100 and 300 μg/mL) suppressed the releases of tumor necrosis factor α (TNF-α), interleukin 6 (IL-6) and nitric oxide in lipopolysaccharide/peptidoglycanactivated RAW264.7 macrophages. In addition to the cell-based study, long-term treatment with GPC (0.35, 1.05 and 2.10 mL/kg/day × 30 doses) was found to reduce the extent of inflammation in animal models of carrageenan-induced paw edema (acute inflammation) as well as cotton pellet-induced granuloma formation (chronic inflammation) in mice. The ability of GPC to enhance the tracheobronchial expectorant action suggested its immunomodulatory activity in the respiratory tract. This postulation was supported by the observation that GPC reduced the degree of pharyngitis and reversed the changes in plasma TNF-α and IL-6 levels in capsaicininduced pharyngitis in rats. The ensemble of results suggests that GPC may offer a promising prospect for alleviating the extent of pharyngitis by virtue of antiinflammatory activities.
