Poria is an important medicine for inducing diuresis to drain dampness from the middle energizer.However,the specific effective components and the potential mechanism of Poria remain largely unknown.To identify the ef...Poria is an important medicine for inducing diuresis to drain dampness from the middle energizer.However,the specific effective components and the potential mechanism of Poria remain largely unknown.To identify the effective components and the mechanism of Poria water extract(PWE)to treat dampness stagnancy due to spleen deficiency syndrome(DSSD),a rat model of DSSD was established through weight-loaded forced swimming,intragastric ice-water stimulation,humid living environment,and alternate-day fasting for 21 days.After 14 days of treatment with PWE,the results indicated that PWE increased fecal moisture percentage,urine output,D-xylose level and weight;amylase,albumin,and total protein levels;and the swimming time of rats with DSSD to different extents.Eleven highly related components were screened out using the spectrum-effect relationship and LC-MS.Mechanistic studies revealed that PWE significantly increased the expression of serum motilin(MTL),gastrin(GAS),ADCY5/6,p-PKAα/β/γcat,and phosphorylated cAMP-response element binding protein in the stomach,and AQP3 expression in the colon.Moreover,it decreased the levels of serum ADH,the expression of AQP3 and AQP4 in the stomach,AQP1 and AQP3 in the duodenum,and AQP4 in the colon.PWE induced diuresis to drain dampness in rats with DSSD.Eleven main effective components were identified in PWE.They exerted therapeutic effect by regulating the AC-cAMP-AQP signaling pathway in the stomach,MTL and GAS levels in the serum,AQP1 and AQP3 expression in the duodenum,and AQP3 and AQP4 expression in the colon.展开更多
目的：建立高效液相色谱法测定桂枝、茯苓药对提取物中原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛、茯苓酸6个成分的含量。方法：采用Diamonsil C18色谱柱（200 mm×4.6 mm,5μm）,流动相乙腈-0.05%磷酸水,梯度洗脱,流速1.0 m L...目的：建立高效液相色谱法测定桂枝、茯苓药对提取物中原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛、茯苓酸6个成分的含量。方法：采用Diamonsil C18色谱柱（200 mm×4.6 mm,5μm）,流动相乙腈-0.05%磷酸水,梯度洗脱,流速1.0 m L·min-1,检测波长254 nm,柱温25℃,对药对桂枝中5个成分同时测定;以乙腈-0.05%磷酸水（75∶25）为流动相,流速1.0 m L·min-1,检测波长210 nm,柱温25℃,对药对茯苓中茯苓酸的含量测定。结果：原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛和茯苓酸分别在0.00818~0.0818μg（r=0.9995）,0.03866~0.3866μg（r=0.9999）,0.03138~0.3138μg（r=0.9998）,0.03512~0.3512μg（r=0.9998）,0.3522~3.522μg（r=0.9998）,0.03920~0.3920μg（r=0.9998）范围内有良好的线性关系。原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛和茯苓酸的加样回收率（n=6）分别为99.2%,98.9%,100.0%,98.4%,99.2%,98.9%,RSD均〈3%。结论：该方法简便、准确,可测定桂枝、茯苓药对提取物中6个成分的含量,为其质量控制提供参考。展开更多
基金supported by the Key Technologies Research and Development Program(No.2017YFC1703004)Hubei Technological Innovation Special Fund(No.2019ACA121).
文摘Poria is an important medicine for inducing diuresis to drain dampness from the middle energizer.However,the specific effective components and the potential mechanism of Poria remain largely unknown.To identify the effective components and the mechanism of Poria water extract(PWE)to treat dampness stagnancy due to spleen deficiency syndrome(DSSD),a rat model of DSSD was established through weight-loaded forced swimming,intragastric ice-water stimulation,humid living environment,and alternate-day fasting for 21 days.After 14 days of treatment with PWE,the results indicated that PWE increased fecal moisture percentage,urine output,D-xylose level and weight;amylase,albumin,and total protein levels;and the swimming time of rats with DSSD to different extents.Eleven highly related components were screened out using the spectrum-effect relationship and LC-MS.Mechanistic studies revealed that PWE significantly increased the expression of serum motilin(MTL),gastrin(GAS),ADCY5/6,p-PKAα/β/γcat,and phosphorylated cAMP-response element binding protein in the stomach,and AQP3 expression in the colon.Moreover,it decreased the levels of serum ADH,the expression of AQP3 and AQP4 in the stomach,AQP1 and AQP3 in the duodenum,and AQP4 in the colon.PWE induced diuresis to drain dampness in rats with DSSD.Eleven main effective components were identified in PWE.They exerted therapeutic effect by regulating the AC-cAMP-AQP signaling pathway in the stomach,MTL and GAS levels in the serum,AQP1 and AQP3 expression in the duodenum,and AQP3 and AQP4 expression in the colon.
文摘目的：建立高效液相色谱法测定桂枝、茯苓药对提取物中原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛、茯苓酸6个成分的含量。方法：采用Diamonsil C18色谱柱（200 mm×4.6 mm,5μm）,流动相乙腈-0.05%磷酸水,梯度洗脱,流速1.0 m L·min-1,检测波长254 nm,柱温25℃,对药对桂枝中5个成分同时测定;以乙腈-0.05%磷酸水（75∶25）为流动相,流速1.0 m L·min-1,检测波长210 nm,柱温25℃,对药对茯苓中茯苓酸的含量测定。结果：原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛和茯苓酸分别在0.00818~0.0818μg（r=0.9995）,0.03866~0.3866μg（r=0.9999）,0.03138~0.3138μg（r=0.9998）,0.03512~0.3512μg（r=0.9998）,0.3522~3.522μg（r=0.9998）,0.03920~0.3920μg（r=0.9998）范围内有良好的线性关系。原儿茶酸、香豆素、桂皮醇、肉桂酸、桂皮醛和茯苓酸的加样回收率（n=6）分别为99.2%,98.9%,100.0%,98.4%,99.2%,98.9%,RSD均〈3%。结论：该方法简便、准确,可测定桂枝、茯苓药对提取物中6个成分的含量,为其质量控制提供参考。
