他汀类药物的非降脂作用

他汀类药物属于羟甲基戊二酰辅酶A（HMG-CoA）还原酶抑制剂，该类药物作为新一代调脂药的代表目前治疗高胆固醇血症的首选药物。新的研究表明，对于急性冠脉综合征和PTCA／CABG术后患者，尽早服用他汀类药物可有效降低心脑血管危险,他汀类药物还可降低C-反应蛋白（CRP）水平、抑制平滑肌增殖。近年来，围绕他汀类药物进行的多项试验取得了一些成就，本文总结介绍如下。     

三联疗法治疗幽门螺旋杆菌感染疗效观察

幽门螺杆菌(Helicobacter pylori,HP)是慢性胃炎最常见的原因,它还与消化性溃疡、萎缩性胃炎、胃癌及胃MALT淋巴瘤有关[1].1994年,WHO的国际癌症研究机构(IARC)认定HP为Ⅰ级致癌物.我国又是HP高感染国家,有30%～60%的儿童和成人染有HP[2],因此对HP的治疗,尤其是根除HP的治疗尤为重要.……     

鲜艳的水果皮不宜食用

凡是外皮鲜艳的水果都应该削皮后食用，如苹果、梨因为它们的果皮含有丰富的“炎黄酮”。这种化学物质进入人体，经肠遵细菌分解成为二羟苯甲酸等．对甲状腺有很强的抑制功能．到一定程度会引起甲状腺浮肿。[编者按]     

HPLC和1HNMR分析确定cis-A-和cis-B-羟甲芬太尼的组成和构型

羟甲芬太尼(1)是一个强效的镇痛剂和高亲和、高选择性的阿片μ受体激动剂。通过HPLC和¹HNMR分析,cis-A-l被确定为由等量的cis-(+)-(3R,4S,2'S)-l和:cis-(—)-(3S,4R,2'R)-1组成的外消旋体,cis-B-l被确定为由等量的cis-(—)-(3R,4S,2'R)-1和cis-(+)-(3S/,4R,2'S)-1组成的外消旋体。     

15-羟廿碳四烯酸对缺氧性肺血管收缩电压门控性K^＋通道的作用机制

缺氧性肺血管收缩(HPV)是机体的一种保护功能，但其机制至今尚不完全清楚。15-羟廿碳四烯酸(15-Hydroxyeicosatetrienoic acid,15-HETE)是15-脂质氧化酶(15-LO)代谢花生四烯酸(AA)的产物，其对肺动脉平滑肌细胞(PSMVC)电压门控性K^ 通道(Kv)有抑制作用，使细胞去极化，细胞内钙离子浓度增加，进而导致细胞收缩，产生HPV，故15-HETE可能是形成HPV的始发介质。     

6%羟乙基淀粉130/0.4对患者硬膜外复合全麻诱导期肺循环的影响

Objective To observe the effect of pulmonary circulation by 6% hydroxyethyl starch 130/0.4 during induction period from epidural block combined with general anesthesia. Methods Twenty-six hepatobiliary surgical patients with ASA Ⅰ-Ⅱ, aged 32 y-59 y, weighing 54 kg-73 kg, were randomized into 2 groups(n=13): hydroxyethyl starch 130/0.4 group(HS)and complex acetic acid Ringer's solution (RL). Above-mentioned solutions were infused 7 ml/kg respectively before induction. The pulmonary circulation hemodynamic parameters such as pulmonary arterial systolic pressure (PASP), pulmonary arterial diastolic pressure (PADP), mean pulmonary artery pressure(MPAP), pulmonary artery wedge pressure(PAWP), pulmonary vascular resistance(PVR) and right ventricular stroke work(RVSW) were recorded at base value(T0), 10 min after infusion(T1), 5 min after induction(T2), 5 rain after intubation(T3), 10 rain after intubation(T4)and 20 min after intubation(T5). Results PASP、PADP、MPAP、PAWP and CVP were significantly higher in group HS at T, than the values at T0 (P<0.05); PVR in group HS was obviously lower from T1 to T5 than the value at To (P<0.05 or P<0.01); RVSW was significantly higher in two groups at T1 than base value (P<0.05), but that in group HS was lower than base value (P<0.05 or P<0.01); HR obviously decreased in two groups from T2 to T5 as compared with the value at T0 (P<0.05); MAP was lower from T3 to T5 than the value at To (P<0.05 or P<0.01). PVR was obviously lower in group HS from T1 to T5 than that in group RL (P<0.05 or P<0.01); MAP obviously increased from T2 to T5 in group HS as compared with the value in group RL(P<0.05 or P<0.01). Conclusion 6% hydroxyethyl starch 130/0.4 can obviously reduce PVR during induction pe-riod from epidural block combined with general anesthesia. In all, there is no effect on pulmonary circulation by 6% hydroxyethyl starch 130/0.4.     

氨乙基氨丙基聚二甲基硅氧烷改性水性聚酯型聚氨酯的研究

由聚酯二元醇、异佛尔酮二异氰酸酯和二羟甲基丙酸合成聚氨酯预聚体，以氨乙基氨丙基聚二甲基硅氧(AEAPS)为扩链剂，制备了AEAPS改性聚氨酯水分散液。与未改性的聚氨酯水分散液相比，AEAPS改性聚氨酯水分散液的粒径增大，但粒径分布和表面张力基本不变，说明疏水的聚二甲基硅氧烷侧链被包裹于分散颗粒的内部；此外，改性聚氨酯水分散液的冻融稳定性显著增强。AEAPS改性聚氨酯水分散液成膜后，吸水率明显下降，水在膜表面的接触角增加，400℃时热失重下降，具有良好的疏水性和耐热性。     

北京地区辛伐他汀不良反应报表分析

<正>辛伐他汀为新型血脂调节药,是羟甲基戊二酸单酰辅酶A还原酶抑制剂的代表药物,它进入体内后的水解物具有降胆固醇作用,临床应用十分广泛。本文通过分析北京市药品不良反应监测中心     

6%羟乙基淀粉200/0.5的药代动力学研究

目的 研究择期手术中单次静脉输注6%羟乙基淀粉200/0.5(HES 200/0.5)的药代动力学.方法 选择10例接受择期手术的患者,ASA Ⅰ级,在15 min内静脉输入10 ml/kg的HES200/0.5,应用蒽酮比色方法测定输注后相应时点血清中HES 200/0.5的浓度,并采用3P97软件计算其药代动力学参数.选择二室模型权重为1时计算药代动力学参数最符合HES 200/0.5的体内特点.结果 所测药代动力学参数如下:t1/2α=3.25 h,t1/2β=163.9 h,K10=0.0877,K12=0.1195,K21=0.0102,Vd=2.164,Cl(s)=0.18985,AUC=52.67 mg·h-1·ml-1.结论 术中单次静脉输注10 ml/kg HES 200/0.5后,血药浓度一时间曲线符合二室模型,血管内停留时间充足,分布半衰期较长.