维生素E在高硫对动物血清硒及过氧化脂质水平影响中的作用

本文能家兔为实验对象，观察维生素E(VE)在高硫(S)对动物血清硒(Se)及脂质过氧化产物水平影响中的作用．结果发现；高S导致动物血清Se降低、血清MDA浓度升高．饲料中添加VE后，血清VE水平显著增加，机体增强了VE的抗氧化作用，因而血清MDA水平显著低于对照组和高S组，表明动物在摄取高S的同时补充VE对增强动物的抗氧化作用是有一定意义的。     

1-乙基-6-氟-1,4-二氢-4-氧代-7-(4-芳酰硫代氨甲酰基-1-哌嗪基)-3-喹啉羧酸的合成及抗菌作用

Thirteen new 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-aroyl-thiocarbamoyl- 1 piperazinyl)-3-quinoline carboxylic acids were prepared, Their structures were characterized by elemental analysis, IR, HNMR and MS spectra.Preliminary pharmacological tests indicated that some of compounds Ia～m possess strong inhibiting activity against Escherichia coli, Bacillus subtilis and Proteus at concentration of 100 μg/ml.     

旋毛虫感染对宿主免疫功能影响的研究

对感染旋毛虫小鼠腹腔巨噬细胞（Ｍ）吞噬活性、脾脏Ｔ细胞亚群、ＮＫ细胞杀伤活性、白细胞介素Ⅱ（ＩＬ－２）产生能力进行了动态检测。观察到小鼠在感染旋毛虫后，上述指标均出现降低，与正常对照组差异非常显著（Ｐ＜０．０１），表明旋毛虫感染对宿主非特异性免疫和特异性免疫功能均有非常明显的抑制作用。同时对抑制作用产生的机理进行了探讨。     

卫生事业的性质、地位与作用的讨论

卫生事业的性质、地位与作用的讨论彭瑞骢，李东方（北京医科大学１０００８３）世界银行１９９３年报告中指出中国以全球卫生经费的１％较好地解决了全球２２％人口的卫生保健问题，效果是好的。最近第２版牛津公共卫生教科书上介绍了英国、美国、日本及中国的卫生工作是...     

甲氰咪胍致昏迷1例

甲氰咪胍现临床广泛应用于治疗消化性溃疡，对胃酸分泌、组织胺、促胃液素等的分泌均有强大的抑制作用，对急性胃出血也有较好的止血作用。但有关副作用的报道也逐年增多。现将甲氰咪胍致昏迷1例报告如下。     

利多卡因预防丙泊酚静脉注射痛效果观察

丙多卡具有起效快、作用时间短、体内无蓄积、苏醒迅速而平稳、术后恶心呕吐发生率低等优点.广泛应用于临床麻醉,但其静脉注射痛是其缺憾之一.临床上预防丙泊酚静脉注射痛的方法有许多报道,本文着重观察小剂量利多卡因对丙泊酚静脉注射痛的预防作用.     

地塞米松对布比卡因诱导小鼠神经元毒性的影响

Objective To investigate the effect of dexamethasone on the toxicity of bupivacaine in murine neurons.Methods Murine neuroblastoma cell line N2a was obtained from ATCC cell bank (USA). The cells were cultured in 10% fetal cow serum/MEM culture medium and divided into 4 groups voup I control (Con); group II bupivacaine ( Bup); group Ⅲ dexamethasone (Dex) and group IV Dex + Bup. The culture medium contained bupivacaine 900 μmol/L in group Bup and dexamethasone 1 μmol/L in group Dex respectively. In group Dex + Bup ( IV ) Bup was added to the culture medium with a final concentration of 900 μmol/L at 12 h after pretreatment with Dex 1 μmol/L. The cells were inoculated in 24 well plates (0.5 ml in each well, 24 wells in each group) and 10 cm culture dishes (7 ml in each dish, 4 dishes in each group). The release rate of LDH was calculated and the morphology of the cells and nucleus condensation (by Hoechst 3334224 fluorescent staining) was detected at 9 h of incubation in 24 well plates. The mitochondrial transmembrane potential (by JC-1 assay) and phosphorylation of Akt and ERKs (by Western blot) were measured at 5 h of incubation in 24 well plates and in culture dishes respectively. ResultsBupivacaine caused severe damage to the N2a cells as evidenced by increase in LDH release and nucleus condensation (apoptosis), dephosphorylation of Akt and ERKs, decrease in mitochondrial transmembrane potential and severe morphological changes. Dexamethasone pretreatment significantly attenuated bupivacaine-induced neurotoxicity. Conclusion Dexamethasone can protect N2a cells from bupivacaine-induced neurotoxicity through stabilization of mitochondrial transmembrane potential and inhibition of dephosphorylation of Akt and ERKs.     

拆方研究补中益气汤中黄芪 甘草及全方的免疫调节作用

目的　检测补中益气汤中黄芪、甘草及全方对病态机体的免疫调节作用。方法　分 7组检测全方中黄芪、甘草及全方缺黄芪、缺甘草组方对利血平制备的脾虚小鼠的 5项非特异性免疫功能的影响进行研究。结果　黄芪能使Hb明显升高 ,单味甘草对某些免疫功能不起作用甚至起抑制作用 ,缺甘草组方作用低于全方 ,全方能明显提高机体免疫功能。结论　黄芪是方中主要升高Hb药物 ;方中甘草起到特殊的调节作用。     

ACEI在慢性肾病中肾保护作用及费用效益关系的研究进展

血管紧张素转换酶抑制剂（ACEI）是20世纪80年代初期开始应用于临床的一类新型抗高血压药物，具有药效强，作用时间长，毒副作用少，依从性好等特点。近年来国外有关ACEI的药理学特点及ACEI在慢性肾病治疗过程中肾保护作用和费用效益比的研究结果表明，在慢性肾病治疗过程中ACEI除了能够预防，减轻和防止肾衰竭进行性加重外，费用效益比显。