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1.
目的 研究毛莨科兴安白头翁Pulsatilla dahurica根茎的化学成分.方法 采用硅胶和Sephadex LH-20凝胶柱色谱、高效液相制备色谱对兴安白头翁化学成分进行分离,通过理化性质和波谱方法鉴定其结构.结果 从兴安白头翁根茎中分离得到11个化合物,分别是常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯苷(Ⅰ)、3-O-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡萄糖(1→6)β-D-吡喃葡萄糖酯苷(Ⅱ)、ciwujianoside C3(Ⅲ)、3-O-β-D-吡喃葡萄糖(1→2)-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯苷(Ⅳ)、3-O-β-D-吡喃葡萄糖(1→4)-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯苷(Ⅴ)、3-O-β-D-吡喃葡萄糖(1→2)[β-D-吡喃葡萄糖(1→4)]-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-α-L-吡喃鼠李糖(1→4)-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯苷(Ⅵ)、6,7-二甲氧基香豆素(Ⅶ)、5,6,7-三甲氧基香豆素(Ⅷ)、4,7-二甲氧基-5-甲基香豆素(Ⅸ)、5,7-二甲氧基-6-羟基香豆素(Ⅹ)、(4S,5R)-4-羟基-5-羟甲基-呋喃-2-酮(Ⅺ).结论 以上化合物均为首次从该植物中分离得到.  相似文献   

2.
目的 研究毛茛科白头翁属植物朝鲜白头翁Pulsatilla koreana根茎中的化学成分.方法 利用硅胶柱、反相硅胶柱,葡聚糖凝胶LH-20、大孔树脂柱、制备高效液相分离纯化,并通过波谱解析和化学方法 进行结构鉴定.结果 从朝鲜白头翁根茎中得到11种化合物,分别为3-O-β-D-吡喃葡萄糖-(1→3)-α-L-吡喃鼠李糖-(1→2)[β-D-吡喃葡萄糖(1→4)]-α-L-吡喃阿拉伯糖齐墩果酸-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(1)、3-O-β-D-吡喃葡萄糖-(1→3)-α-L-吡喃鼠李糖-(1→2)[β-D-吡喃葡萄糖(1→4)]-α-L-吡喃阿拉伯糖常春藤苷元-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅱ)、3-O-β-D-吡喃葡萄糖-(1→3)-α-L-吡喃鼠李糖-(1→2)-α-L吡喃阿拉伯糖齐墩果酸-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅲ)、3-O-β-D-吡喃葡萄糖-(1→3)-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖常春藤皂苷元-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅳ)、3-O-α-L-吡喃鼠李糖-(1→2)[β-D-吡喃葡萄糖(1→4)]-α-L-吡喃阿拉伯糖齐墩果酸-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅴ)、3-O-α-L-吡喃鼠李糖-(1→2)[β-D-吡喃葡萄糖(1→4)]-α-L-吡喃阿拉伯糖常春藤苷元-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅵ)、3-O-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖齐墩果酸-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅶ)、3-O-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖常春藤苷元-28-O-α-L-吡喃鼠李糖-(1→4)-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(Ⅷ)、齐墩果酸-3-O-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖苷(Ⅸ)、常春藤苷元-3-O-α-L-吡喃鼠李糖-(1→2)-α-L-吡喃阿拉伯糖苷(Ⅹ)、常春藤皂苷元-3-O-α-L-吡喃阿拉伯糖苷(Ⅺ).结论 化合物Ⅲ为首次从该属植物中分离得到,Ⅺ为首次从该植物中分离得到.  相似文献   

3.
目的研究灰毡毛忍冬Lonicera macranthoides花蕾的化学成分。方法灰毡毛忍冬药材90%乙醇提取液依次用石油醚和醋酸乙酯萃取,醋酸乙酯萃取部分反复柱色谱得到化合物。结果从灰毡毛忍冬花蕾中分离鉴定了6个皂苷类化合物:3-O-β-D-吡喃葡萄糖基(1-4)-β-D-吡喃葡萄糖基(1-3)-α-L-吡喃鼠李糖基(1-2)-α-L-吡喃阿拉伯糖基-常春藤皂苷元-28-O-β-D-吡喃葡萄糖基(1-6)-β-D-吡喃葡萄糖酯苷(Ⅰ)、3-O-β-D-吡喃葡萄糖基(1-3)-α-L-吡喃鼠李糖基(1-2)-α-L-吡喃阿拉伯糖基-常春藤皂苷元-28-O-β-D-吡喃葡萄糖基(1-6)-β-D-吡喃葡萄糖酯苷(Ⅱ)、3-O-α-L-吡喃阿拉伯糖基-常春藤皂苷元-28-O-β-D-吡喃葡萄糖基(1-6)-β-D-吡喃葡萄糖酯苷(Ⅲ)、3-O-β-D-吡喃葡萄糖基(1-4)-β-D-吡喃葡萄糖基(1-3)-α-L-吡喃鼠李糖基(1-2)-α-L-吡喃阿拉伯糖基-常春藤皂苷元(Ⅳ)、3-O-β-D-吡喃葡萄糖基(1-3)-α-L-吡喃鼠李糖基(1-2)-α-L-吡喃阿拉伯糖基-常春藤皂苷元(Ⅴ)、3-O-α-L-吡喃鼠李糖基(1-2)-α-L-吡喃阿拉伯糖基-齐墩果酸-28-O-β-D-吡喃葡萄糖基(1-6)-β-D-吡喃葡萄糖酯苷(Ⅵ)。结论化合物Ⅲ为首次从忍冬属植物中分得,Ⅳ、Ⅴ为首次从该植物中分得,Ⅵ为首次从该植物中分得的齐墩果酸型皂苷。  相似文献   

4.
目的研究滇重楼Paris polyphylla var.yunnanensis根茎中的化学成分。方法利用正相硅胶柱色谱、葡聚糖凝胶Sephadex LH-20、反相制备色谱等手段进行分离纯化,并通过1H-NMR、13C-NMR、ESI-MS等波谱技术进行结构鉴定。结果从醋酸乙酯层中分离得到了7个化合物,分别鉴定为豆甾醇-3-O-β-D-葡萄糖苷(Ⅰ)、1-O-(β-D-葡萄糖基)-(2S,3S,4E,8E)-2-[(2′R)-2′-羟基十六酰氨基]-4(E),8(E)-十八二烯-1,3-二醇(Ⅱ)、β-蜕皮激素(Ⅲ)、薯蓣皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-葡萄糖苷(Ⅳ)、薯蓣皂苷元-3-O-α-L-吡喃鼠李糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-葡萄糖苷(Ⅴ)、薯蓣皂苷元-3-O-α-L-吡喃鼠李糖基(1→4)-α-L-吡喃鼠李糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-葡萄糖苷(Ⅵ)和偏诺皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-葡萄糖苷(Ⅶ)。结论化合物Ⅱ为首次从该属植物中分离得到。  相似文献   

5.
卷丹化学成分的研究   总被引:2,自引:0,他引:2  
目的研究卷丹Lilium lancifolium Thunb.鳞茎中的化学成分。方法利用柱色谱和重结晶等进行分离纯化,根据化合物的理化性质和光谱数据鉴定结构。结果分离得到15个化合物,分别鉴定为:①β-D-葡萄糖糖基-(1→4)-β-D-吡喃葡萄糖苷,②β-D-果呋喃糖基-α-D-吡喃葡萄糖苷,③甲基-α-D-吡喃葡萄糖苷,④甲基-α-D-吡喃甘露糖苷,⑤腺嘌呤核苷,⑥胡萝卜苷,⑦1-O-对香豆酰基甘油酯,⑧薯蓣皂苷元3-O-{O-α-L-鼠李糖基-(1→2)-O-[β-D-木糖基(1→3)]-β-D-葡萄糖苷},⑨(25R)-3β,17α-二羟基-5α-螺甾烷-6-酮-3-O-α-L-鼠李糖基-(1→2)-β-D-葡萄糖苷,⑩(25R)-3β-羟基-5α-螺甾烷-6-酮-3-O-α-L-鼠李糖基-(1→2)-β-D-葡萄糖苷,(11)(25R)-螺甾烷-5-烯-3β-O-α-L-吡喃鼠李糖-(1→2)-[β-D-吡喃葡萄糖-(1→6)]β-D-吡喃葡萄糖苷,(12)二十九烷醇,(13)正二十二烷酸,(14)豆甾醇,(15)β-谷甾醇。结论化合物2、3和化合物5~11均首次从该植物中分离得到。  相似文献   

6.
天冬化学成分的研究(Ⅱ)   总被引:2,自引:0,他引:2  
目的:研究天冬的化学成分.方法:经大孔树脂、反复硅胶柱色谱、Sephadex LH-20凝胶柱色谱和C-18反相硅胶柱色谱等各种色谱方法分离天冬中的化学成分,通过理化性质和现代波谱技术(MS、1HNMR、13CNMR)确定所分离化合物的结构.结果:从其乙醇提取物中分离得到5个化合物,经鉴定分别为薯蓣皂苷元-3-O-β-D-吡喃葡萄糖苷(Ⅰ),异菝葜皂苷元(Ⅱ),26-O-β-D-吡喃葡萄糖基-呋甾-3β,22,26-三醇-3-O-β-D-吡喃葡萄糖基(1→2)-O-β-D-吡喃葡萄糖苷(Ⅲ),26-O-β-D-吡喃葡萄糖基-呋甾-5-烯-3β,2α,26-三醇-3-O-[α-α-吡喃鼠李糖基(1→2)]-[α-α-吡喃鼠李糖基-(1→4)]- β-D-吡喃葡萄糖苷(Ⅳ),26-O-β-D-吡喃葡萄糖基-呋甾-3β,26-二醇-22-甲氧基-3-O-α-L-吡喃鼠李糖基(1→4)-O-β-D-吡喃葡萄糖苷(Ⅴ).结论:化合物Ⅰ~Ⅴ均为首次从天冬中得到.  相似文献   

7.
川续断中三萜皂甙的研究Ⅱ   总被引:1,自引:0,他引:1  
从川续断Dipsacus asperoides C.Y.Cheng et T.M.Ai根的乙醇提取物中分得六个三萜皂甙(Ⅰ~Ⅵ)。根据化学方法及光谱学方法,鉴定其结构分别为Ⅰ:3-O-α-L-吡喃阿拉伯糖-常春藤皂甙元;Ⅱ:Ⅰ的28-O-β-D-吡喃葡萄糖酯甙;Ⅲ:常春藤皂甙元-28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙;Ⅳ:Ⅰ的28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖醇甙;V:3-O-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙;Ⅵ:3-O-α-L-吡喃鼠李糖(1→3)-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙。Ⅱ和Ⅲ为新天然产物,Ⅰ为首次从该植物中分得。  相似文献   

8.
目的研究毛重楼根茎中的化学成分。方法采用溶剂法提取,利用正相硅胶色谱、葡聚糖凝胶Sephadex LH-20、反相制备色谱等手段进行分离纯化,并通过1H-NMR、13C-NMR等波谱技术进行结构鉴定。结果从醋酸乙酯层和正丁醇层中分离得到11个化合物,分别鉴定为β-谷甾醇(Ⅰ)、豆甾醇(Ⅱ)、邻苯二酸二正丁基酯(Ⅲ)、β-蜕皮激素(Ⅳ)、偏诺皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-吡喃葡萄糖苷(Ⅴ)、薯蓣皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-[α-L-吡喃鼠李糖基(1→2)]-β-D-吡喃葡萄糖苷(Ⅵ)、偏诺皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-β-D-吡喃葡萄糖苷(Ⅶ)、薯蓣皂苷元-3-O-α-L-呋喃阿拉伯糖基(1→4)-β-D-吡喃葡萄糖苷(Ⅷ)、偏诺皂苷元-3-O-α-L-吡喃鼠李糖基(1→4)-α-L-吡喃鼠李糖基(1→4)-[α-L-吡喃鼠李糖 基(1→2)]-β-D-吡喃葡萄糖苷(Ⅸ)、槲皮素(Ⅹ)和山柰酚(Ⅺ)。结论化合物Ⅰ~Ⅺ均为首次从该种植物中分离得到,其中化合物Ⅲ、Ⅹ为首次从该属植物中分离得到。  相似文献   

9.
川续断中三萜皂甙的研究Ⅰ   总被引:2,自引:0,他引:2  
从川续断Dipsacus asperoides C.Y.Cheng et T.M.Ai根的乙醇提取物中分得两个三萜皂甙(Ⅶ和Ⅷ),根据光谱分析和化学反应,其结构分别鉴定为3-O-[β-D-吡喃木糖(1→4)-β-D-吡喃葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元(Ⅶ)及其28-O-β-D-吡喃葡萄糖酯甙(Ⅷ),Ⅷ为一新三萜皂甙。  相似文献   

10.
目的:研究朝鲜白头翁[Pulsatilla cernua](Thunb.)Bercht. et Opiz.]根茎的化学成分。方法:朝鲜白头翁根茎的乙醇提取物经大孔树脂、硅胶、ODS柱以及 HPLC分离得到6个化合物,通过波谱(1H,13CNMR,FAB-MS等)分析和化学方法进行结构鉴定。结果:6个化合物分别被鉴定为 pulsatilla saponin A(1),常春藤皂苷元3-O-β-D-吡喃葡糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖苷(2),pulsatilla saponin D(3),dipsacoside B(4),3-O-α-L-吡喃鼠李糖(1→2)[β-D-吡喃葡糖(1→4)]-α-L-吡喃阿拉伯糖常春藤皂苷元28-O-…  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…  相似文献   

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Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

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Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.  相似文献   

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In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.  相似文献   

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Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

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目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

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Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

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