{"title":"[正常大鼠和实验性肝硬化门脉压的药理降低]。","authors":"O Altmann","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Four pharmacons were tested on an acute portal pressure lowering effect in an experimental animal model with 25 normal and 25 rats with Thioacetamide-toxic liver cirrhosis. Invasive measurements of arterial and portal pressure were made under Hexobarbital-Sodium anaesthesia during 30 minutes after pharmacon application. The portal pressure of cirrhotic rats was under basic conditions 9.5 +/- 1.5 mm Hg and significant higher as in normal animals (5.3 +/- 0.9 mm Hg, p less than 0.01). After 10 mg/kg body mass Propranolol the portal pressure decreased in both animal groups small but not significantly over the whole measurement time. 1 mg/kg Verapamil lowered arterial middle pressure significantly, but increased portal pressure at all 15-20% in both animal groups. Application of 0.1 mg/kg Prazosin decreased the arterial middle pressure at all 5-15% and the portal pressure at all 20-30% in both study groups (both significantly). For Canrenoat-Potassium (20 mg/kg) no clear effect could by evaluated on portal pressure. The model of Thioacetamide-toxic cirrhosis of the rat offers conditions like cirrhosis in human medicine in order to study the effects of portal pressure lowering pharmacons. Propranolol and Prazosin decrease portal pressure and should by further investigated.</p>","PeriodicalId":77539,"journal":{"name":"Gastroenterologisches Journal : Organ der Gesellschaft fur Gastroenterologie der DDR","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Pharmacological lowering of portal pressure in normal rats and in experimental liver cirrhosis].\",\"authors\":\"O Altmann\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Four pharmacons were tested on an acute portal pressure lowering effect in an experimental animal model with 25 normal and 25 rats with Thioacetamide-toxic liver cirrhosis. Invasive measurements of arterial and portal pressure were made under Hexobarbital-Sodium anaesthesia during 30 minutes after pharmacon application. The portal pressure of cirrhotic rats was under basic conditions 9.5 +/- 1.5 mm Hg and significant higher as in normal animals (5.3 +/- 0.9 mm Hg, p less than 0.01). After 10 mg/kg body mass Propranolol the portal pressure decreased in both animal groups small but not significantly over the whole measurement time. 1 mg/kg Verapamil lowered arterial middle pressure significantly, but increased portal pressure at all 15-20% in both animal groups. Application of 0.1 mg/kg Prazosin decreased the arterial middle pressure at all 5-15% and the portal pressure at all 20-30% in both study groups (both significantly). For Canrenoat-Potassium (20 mg/kg) no clear effect could by evaluated on portal pressure. The model of Thioacetamide-toxic cirrhosis of the rat offers conditions like cirrhosis in human medicine in order to study the effects of portal pressure lowering pharmacons. Propranolol and Prazosin decrease portal pressure and should by further investigated.</p>\",\"PeriodicalId\":77539,\"journal\":{\"name\":\"Gastroenterologisches Journal : Organ der Gesellschaft fur Gastroenterologie der DDR\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1991-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Gastroenterologisches Journal : Organ der Gesellschaft fur Gastroenterologie der DDR\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gastroenterologisches Journal : Organ der Gesellschaft fur Gastroenterologie der DDR","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
以25只正常大鼠和25只硫乙酰胺毒性肝硬化大鼠为实验动物模型,观察4种药物的急性门静脉降压作用。药物应用后30分钟,在六巴比妥钠麻醉下测量动脉和门静脉压力。肝硬化大鼠门静脉压力在基本条件下为9.5 +/- 1.5 mm Hg,显著高于正常动物(5.3 +/- 0.9 mm Hg, p < 0.01)。在服用10 mg/kg体重的心得安后,两组动物的门脉压在整个测量时间内都有所下降,但幅度不大。1 mg/kg维拉帕米显著降低了两组动物的动脉中压,但使门脉压升高了15-20%。在两个研究组中,应用0.1 mg/kg哌唑嗪可使动脉中压降低5-15%,门静脉压降低20-30%(均显著)。canrenoat -钾(20 mg/kg)对门静脉压力无明显影响。通过建立大鼠硫代乙酰胺毒性肝硬化模型,为研究门静脉降压药物的作用提供了类似人类医学肝硬化的条件。心得安和哌唑嗪可降低门静脉压力,有待进一步研究。
[Pharmacological lowering of portal pressure in normal rats and in experimental liver cirrhosis].
Four pharmacons were tested on an acute portal pressure lowering effect in an experimental animal model with 25 normal and 25 rats with Thioacetamide-toxic liver cirrhosis. Invasive measurements of arterial and portal pressure were made under Hexobarbital-Sodium anaesthesia during 30 minutes after pharmacon application. The portal pressure of cirrhotic rats was under basic conditions 9.5 +/- 1.5 mm Hg and significant higher as in normal animals (5.3 +/- 0.9 mm Hg, p less than 0.01). After 10 mg/kg body mass Propranolol the portal pressure decreased in both animal groups small but not significantly over the whole measurement time. 1 mg/kg Verapamil lowered arterial middle pressure significantly, but increased portal pressure at all 15-20% in both animal groups. Application of 0.1 mg/kg Prazosin decreased the arterial middle pressure at all 5-15% and the portal pressure at all 20-30% in both study groups (both significantly). For Canrenoat-Potassium (20 mg/kg) no clear effect could by evaluated on portal pressure. The model of Thioacetamide-toxic cirrhosis of the rat offers conditions like cirrhosis in human medicine in order to study the effects of portal pressure lowering pharmacons. Propranolol and Prazosin decrease portal pressure and should by further investigated.