沙枣鞣质的含量测定

目的　提取测定沙枣鞣质。方法　运用超声技术提取沙枣中的鞣质 ,用络合滴定法测定其含量。结果　沙枣鞣质的平均含量为 7.73%。结论　结果表明该法操作简便 ,分析速度快 ,结果准确可靠     

仁寿县夏季腹泻患者病原学调查

我站于1986年7月至9月对县、区医院门诊的急性感染性腹泻病人进行随机取样,收集病人粪便标本103份,进行了产肠毒素大肠杆菌、致病性大肠杆菌、侵袭性大肠杆菌、空肠弯曲菌、小肠结肠炎耶森氏菌、志贺氏菌、沙门氏菌及EL—Tor弧菌、白色念珠菌等病原学调查。     

针刺治疗中风临床经验和实验研究近况

中风是一严重危害劳动人民身体健康的疾病。据统计,中风死亡率已列为第三位,仅次于心脏病、肿瘤。中风后遗症也是较严重的。在过去的一段时间里,针灸治疗中风后遗症具有独特的疗效。随着时间的推移,亦有报道在急性期采用药物配合针灸治疗,可以减低死亡率。兹将1981～1985年来有关临床经验及实验研究作一概述。     

小剂量氯胺酮复合丙泊酚-芬太尼用于胃镜检查术

目的:探讨小剂量氯胺酮复合丙泊酚-芬太尼静脉麻醉在门诊胃镜检查术中应用的临床有效性和安全性.方法:将128例患者分为青壮年(A组 )和老年组(B组 ),对 A1,B1组(丙泊酚 芬太尼 ),A2,B2组(氯胺酮 0.1 mg/kg 丙泊酚 芬太尼 ),A3,B3组(氯胺酮 0.2 mg/kg 丙泊酚 芬太尼 ),分别观察胃镜检查过程中平均动脉压(MAP)、心率(HR)、氧分压(SPO2)、丙泊酚用量、苏醒时间、呼吸抑制发生率等指标.结果:所有患者诱导后 MAP,HR,SPO2均下降 ; A1,B1组较 A2,A3,B2,B3组下降更明显,呼吸抑制率明显增高,丙泊酚用量明显增加 ; B3,A3苏醒时间较 A1,A2,B1,B2组明显延长.结论:用 0.1 mg/kg氯胺酮复合丙泊酚-芬太尼静脉麻醉是无痛胃镜检查安全、有效的麻醉方式.     

甘草酸二铵对动物血清胆碱酯酶的影响

目的 :研究甘草酸二铵 (diammoniumglycyrrhizinate ,DG)对小鼠和家兔外周血清胆碱酯酶的影响。 方法 :昆明种小鼠尾静脉注射甘草酸二铵 10～ 2 0mg·kg-1,家兔耳缘静脉注射甘草酸二铵 10～ 2 0mg·kg-1,静脉注射 30min后 ,采血测定血清胆碱酯酶活性。结果 :应用甘草酸二铵组的小鼠、家兔胆碱酯酶活性明显低于生理盐水组 ,但高于敌百虫组。结论 :甘草酸二铵可抑制血清胆碱酯酶活性 ,但抑制作用低于敌百虫组。     

心脏换瓣术中再次阻断主动脉的临床分析

我院 1987年 12月至 2 0 0 1年 12月共行心脏瓣膜置换术 187例 ,其中因多种原因在体外循环终止后再次阻断主动脉 5例 ,均经及时恰当处置后好转 ,治愈出院。现就 5例术中意外情况分析报道如下。临床资料例 1,男 ,17岁 ,风湿性二尖瓣关闭不全。行保留二尖瓣全部装置的二尖瓣置换术[1] ,瓣环较小 ,术中勉强置入 2 7号单叶机械瓣 ,试瓣启闭良好 ,开放循环后心脏反复室颤 ,电击三次仍不能复跳 ,左心室胀 ,急查血气及电解质均正常。当即分析为置入的人工瓣过大 ,影响左心室流出道通畅度。立即重阻主动脉 ,取出 2 7号人工瓣 ,重置 2 5号同型瓣 ,开…     

高原地区部队拉练驻训演习卫勤保障特点和措施

本文根据高原地区的环境特点，提出了部队拉练、驻训及“反恐”演习中的卫勤保障措施，经实践运用，确保了部队拉练、驻训、演习的顺利完成，其经验可供借鉴、参阅。     

中药紫金砂的抗溃疡活性部位研究

目的:筛选中药紫金砂抗溃疡作用的活性部位。方法:系统溶剂法提取分离得到五个部位,通过阿司匹林-乙醇溶液所致小鼠胃溃疡模型筛选中药紫金砂抗溃疡作用的活性部位。结果:中药紫金砂的石油醚、氯仿、乙酸乙酯等脂溶性部位具有显著的抗溃疡作用。结论:脂溶性部位为中药紫金砂抗溃疡的活性部位。     

Effect of ATRA on Contents of liver Retinoids, Oxidative Stress and Hepatic Injury in Rat Model of Extrahepatic Cholestasis

The effects of all-trans-retinoic acid （ATRA） administration on the concentration of retinoids （RA and vitamin A） in liver, oxidative stress and the hepatic injury in a rat model of common bile duct ligation （CBDL）-induced liver injury were investigated. Female rats were subjected to a sham （n=5） or CBDL （n=48）. Two weeks after operation, rats undergoing CBDL were randomized to receive treatment with either ATRA at three different doses （0.1, 1.5, 7.5 mg/kg） dissolved in bean oil or only bean oil every day over a 4-week experimental period. Rats were killed and blood samples were collected from the heart for determination of the serum transaminase. The contents of retinoids in rat liver were detected by using HPLC. Malondialdehyde （MDA）, glutathione （GSH） and superoxide dismutase （SOD） levels in liver were determined by a spectrophotometric method according to the instruction of the kits. Liver pathologic changes were observed under the light microscopy and electron microscopy. The results showed that compared with sham-operated group, the levels of retinoids in the liver tissue were significantly decreased in the CBDL group （P〈0.01）. ATRA （0.1 mg/kg） administration in CBDL rats partially restored the contents of retinoids （P〈0.05）. Liver RA and vita- min A contents in CBDL group were significantly increased after ATRA （1.5 and 7.5 mg/kg） supplementation as compared with sham-operated group （P〈0.05）. However, in ATRA-treated CBDL group, hepatic GSH level and SOD activity, depressed by CBDL, and hepatic MDA level, increased by CBDL were returned to those in sham-operated group （P〈0.05）. The histologic observation of liver tissues indicated that ATRA treatment notably alleviated hepatocellular swelling, steatosis, the. swelling of mitochondria and proliferation of smooth endoplasmic reticulum （SER）. Treatment with ATRA could reduce levels of serum transaminase as compared with sham-operated group, more greatly in 1.5 and 7.5 mg/kg ATRA-treated