血小板激活因子及其拮抗剂在肝脏缺血再灌注损伤中的作用

通过对肝脏缺血再灌注损伤过程中PAF的变化进行初步研究,观察PAF拮抗剂海风藤酮对大鼠肝脏局部缺血再灌注损伤的保护作用。结果表明:肝脏缺血再灌注损伤时肝组织PAF含量增高,且随再灌注时间的延长而加重,海风藤酮可以拮抗损伤过程中PAF增高所致的药理作用,减轻肝脏脂质过氧化程度,改善肝功能,减轻肝脏病变程度。结果提示PAF拮抗剂可能为肝脏缺血再灌注损伤的防治提供一条新的途径。     

庆大霉素,吗丁啉,硫糖铝联用治疗慢性浅表性胃炎

用庆大霉素、吗丁啉、硫糖铝联用治疗慢性浅表性胃炎５００例，硫糖铝单药治疗１００例为对照。治疗组总有效率为９５％，对照组为７５％，两组有显著性差异（Ｐ＜０．０５）。治疗后胃镜复查，幽门螺杆菌阴转率治疗组为８３．３％。对照组为５０％，两组有极显著性差异（Ｐ＜０．０１）。联合用药治疗慢性浅表性胃炎因抓住抗感染、防止胆汁返流、保护胃粘膜屏障３个环节，故比单药治疗效果好。     

丙氧氨酚与酮咯酸治疗癌痛的比较

晚期肿瘤疼痛病人３１例（男性１７例，女性１４例，年龄５０±５１４ａ），用丙氧氨酚２片，ｐｏ，ｔｉｄ，共７ｄ。相似病人３０例（男性１６例，女性１４例，年龄５１±１３ａ），用酮咯酸１０ｍｇ，ｐｏ，ｑｉｄ，共７ｄ。结果：疼痛强度（标尺法）２组均有降低；显效时间前组（丙氧氨酚）快于后组（酮咯酸）；药效维持时间后组长于前组；不良反应前组嗜睡多于后组，而胃肠道不适少于后组。     

用混合粘合剂碳糊电极测定丁螺环酮

用混合粘合剂碳糊电极测定丁螺环酮张正奇，曾鸽鸣，刘传桂，黎艳飞（湖南大学化学化工系，长沙４１００８２）碳糊电极无毒，制作方便，表面更新容易，应用电位范围广，在药物分析中已有应用［１～５］。我们在液体石腊中加入添加剂，组成混合粘合剂，可显著改善电极的检...     

用蒿甲醚和吡喹酮早期治疗兔的血吸虫感染

兔于感染血吸虫尾蚴后ｄ７或２１分别开始ｉｇ１次蒿甲醚（Ａｒｔ）１０ｍｇ．ｋｇ＾－１和吡喹酮（Ｐｒａ）４０ｍｇ．ｋｇ＾－１，然后每隔１ｗｋｉｇ１次相同剂量的Ａｒｔ或Ｐｒａ连给３－４次，减♀虫率达９８％以上，且部分兔无♀虫，上述兔相仿，或仅有轻度变化，一些与急性血吸虫病有关的指标测定亦为阴性。     

湛江市260名健康成人尿δ—ALA参考值上限的探讨

湛江市２６０名健康成人尿δ—ＡＬＡ参考值上限的探讨湛江市职业病防治所（霞山录塘路，５２４０１８）赵南广东医学院中心实验室唐旭东铅接触工人尿中δ－氨基酮戊酸（δ－ＡＬＡ）含量变化较早，有一定特异性，其含量增高可反映铅接触和中毒程度。另外，δ－ＡＬＡ仍是...     

十二烷氮酮氟尿嘧啶凝胶治疗疣及银屑病150例

443例(男225例,女218例;年龄36±14a)皮肤病患者,其中150例(扁平疣52例、寻常疣55例、银屑病43例)外用含1.8％十二烷氮(艹卓)酮的1％氟尿嘧啶(5-FU)凝胶作为治疗组,148例外用1％5-FU凝胶及145例外用2.5％5-FU霜作为2个对照组。经双盲对照临床试验,结果表明含1.8％十二烷氮(艹卓)酮的1％5-FU凝胶的疗效明显优于2个对照组(P<0.01及P<0.005)。证明氮(艹卓)酮对5-FU确有渗透促进作用。     

Rapid effect of stress concentration corticosterone on glutamate receptor and its subtype NMDA receptor activity in cultured hippocampal neurons

Objective: To study the rapid effect of glucocorticoids (GCs) on NMDA receptor activity in hippocampal neurons in stress and to elucidate its underlying probable membrane mechanisms. Methods: Whole-cell patch-clamp recording was used to assess the effect of stress concentration corticosterone (B) on the responses of cultured hippocampal neurons to glutamate and NMDA (N-methy-D-asparatic acid). To make clear the target of B, intracellular dialysis of B(10μmol/L)through patch pipette and extracellular application of bovine serum albumin-conjugated corticosterone (B-BSA, 10μmol/L)were carried out to observe their influence on peak amplitude of NMDA-evoked current. Results: B had a rapid, reversible and inhibitory effect on peak amplitude of GLU-or NMDA-evoked current in cultured hippoeampal neurons. Furthermore, B-BSA had the inhibitory effect on INMDA as that of B, but intraeeUularly dialyzed B had no significant effect on INMDA. Conclusion: These results suggest that under the condition of stress, GCs may rapidly, negatively regulate excitatory synaptic receptors-glutamate receptors (GluRs), especially NMDA receptor (NMDAR) in central nervous system, which is mediated by rapid membrane mechanisms, but not by classical, genomic mechanisms.