OBJECTIVE:To evaluate the effects of a combination of Yinyanghuo(Herba Epimedii Brevicornus)(HEB)and Cheqianzi(Semen Plantaginis)(SP)on erectile dysfunction caused by essential hypertension in spontaneously hypertensi...OBJECTIVE:To evaluate the effects of a combination of Yinyanghuo(Herba Epimedii Brevicornus)(HEB)and Cheqianzi(Semen Plantaginis)(SP)on erectile dysfunction caused by essential hypertension in spontaneously hypertensive rats(SHRs),and to elucidate the role of the angiotensin-converting enzyme 2-angiotensin-(1-7)-Mas receptor(ACE2/Ang[1-7]/Mas receptor)axis in this process.METHODS:A total of 24 SHRs were randomly assigned to three groups:SHR-control,low-dose(12.5 g/kg)and high-dose(25 g/kg)HEB+SP(HEBSP).Eight Wistar-Kyoto rats were used as normal controls.HEBSP was administered by oral gavage for 28 d.Erectile function was measured once a week using the Heaton test.After 4 weeks of treatment,the corpus cavernosum was harvested from each rat to measure nitric oxide(NO),nitric oxide synthase(e NOS)and Ang(1-7)levels,as well as ACE2,Mas receptor and neuronal nitric oxide synthase(n NOS)protein expression.RESULTS:After 4 weeks of treatment,HEBSP significantly increased erectile function in the treated group compared with SHR-control group(P<0.01).Additionally,HEBSP treatment significantly increased cavernosal levels of Ang(1-7),e NOS and NO.Moreover,HEBSP significantly elevated the expression levels of ACE2,Mas receptor and n NOS.These beneficial effects were elevated in the high-dose HEBSP group.CONCLUSION:HEBSP improved erectile function in SHRs by upregulating the ACE2/Ang(1-7)/Mas receptor axis,e NOS and n NOS pathways.展开更多
目的 建立不同产地车前草和车前子药材的指纹图谱以及综合质量评价模型,为车前草和车前子药材的整体质量评价提供参考。方法 采用UPLC法测定不同产地14批车前草和12批车前子药材的指纹图谱,并对采集的指纹图谱信息进行独立样本t检验以...目的 建立不同产地车前草和车前子药材的指纹图谱以及综合质量评价模型,为车前草和车前子药材的整体质量评价提供参考。方法 采用UPLC法测定不同产地14批车前草和12批车前子药材的指纹图谱,并对采集的指纹图谱信息进行独立样本t检验以及化学计量学模式研究(HCA、PCA、PLS-DA);同时测定各批次药材的水分、总灰分、酸不溶性灰分、浸出物、膨胀度,使用熵权法计算组合权重,运用加权逼近理想解排序法(technique for order preference by similarity to ideal solution,TOPSIS)、加权秩和比法(rank sum ratio,RSR)及两者模糊联合的方法构建评价模型。结果 建立的车前子与车前草药材指纹图谱共标定32个峰,其中车前草药材标定了22个共有峰,指认了其中4个峰,车前子药材标定了25个共有峰,指认了其中6个峰。独立样本t检验及化学计量学模式研究显示不同产地车前草和车前子存在明显差异。PLS-DA从车前草药材中提取出12个差异性成分,从车前子药材中提取出14个差异性成分。构建的熵权TOPSIS法、RSR法以及两者模糊联合的综合质量评价模型,对不同产地车前草和车前子药材的质量评价排序结果较为一致。结论 本研究建立的指纹图谱可为车前草和车前子的专属性鉴别以及产地区分提供一定参考,建立的综合质量评价模型的分析结果客观、科学、准确,可用于车前草和车前子药材质量的综合评价。展开更多
文摘OBJECTIVE:To evaluate the effects of a combination of Yinyanghuo(Herba Epimedii Brevicornus)(HEB)and Cheqianzi(Semen Plantaginis)(SP)on erectile dysfunction caused by essential hypertension in spontaneously hypertensive rats(SHRs),and to elucidate the role of the angiotensin-converting enzyme 2-angiotensin-(1-7)-Mas receptor(ACE2/Ang[1-7]/Mas receptor)axis in this process.METHODS:A total of 24 SHRs were randomly assigned to three groups:SHR-control,low-dose(12.5 g/kg)and high-dose(25 g/kg)HEB+SP(HEBSP).Eight Wistar-Kyoto rats were used as normal controls.HEBSP was administered by oral gavage for 28 d.Erectile function was measured once a week using the Heaton test.After 4 weeks of treatment,the corpus cavernosum was harvested from each rat to measure nitric oxide(NO),nitric oxide synthase(e NOS)and Ang(1-7)levels,as well as ACE2,Mas receptor and neuronal nitric oxide synthase(n NOS)protein expression.RESULTS:After 4 weeks of treatment,HEBSP significantly increased erectile function in the treated group compared with SHR-control group(P<0.01).Additionally,HEBSP treatment significantly increased cavernosal levels of Ang(1-7),e NOS and NO.Moreover,HEBSP significantly elevated the expression levels of ACE2,Mas receptor and n NOS.These beneficial effects were elevated in the high-dose HEBSP group.CONCLUSION:HEBSP improved erectile function in SHRs by upregulating the ACE2/Ang(1-7)/Mas receptor axis,e NOS and n NOS pathways.
文摘目的 建立不同产地车前草和车前子药材的指纹图谱以及综合质量评价模型,为车前草和车前子药材的整体质量评价提供参考。方法 采用UPLC法测定不同产地14批车前草和12批车前子药材的指纹图谱,并对采集的指纹图谱信息进行独立样本t检验以及化学计量学模式研究(HCA、PCA、PLS-DA);同时测定各批次药材的水分、总灰分、酸不溶性灰分、浸出物、膨胀度,使用熵权法计算组合权重,运用加权逼近理想解排序法(technique for order preference by similarity to ideal solution,TOPSIS)、加权秩和比法(rank sum ratio,RSR)及两者模糊联合的方法构建评价模型。结果 建立的车前子与车前草药材指纹图谱共标定32个峰,其中车前草药材标定了22个共有峰,指认了其中4个峰,车前子药材标定了25个共有峰,指认了其中6个峰。独立样本t检验及化学计量学模式研究显示不同产地车前草和车前子存在明显差异。PLS-DA从车前草药材中提取出12个差异性成分,从车前子药材中提取出14个差异性成分。构建的熵权TOPSIS法、RSR法以及两者模糊联合的综合质量评价模型,对不同产地车前草和车前子药材的质量评价排序结果较为一致。结论 本研究建立的指纹图谱可为车前草和车前子的专属性鉴别以及产地区分提供一定参考,建立的综合质量评价模型的分析结果客观、科学、准确,可用于车前草和车前子药材质量的综合评价。
