不同辅料对通塞脉浸膏粉体物理性质及其微丸成型性的影响研究

目的:初步探讨通塞脉浸膏与不同辅料混合物的物理性质与其微丸成型性的相关性.方法:通过测定不同处方混合物的内聚力、塑性指数及所成微丸粉体学性质,运用主客观赋权法及多元回归分析其相关性.结果:混合物的塑性指数对微丸成型起主要影响,在所考察范嗣内呈正相关,内聚力与微丸成型呈负相关.结论:混合物的物理性质能显著地影响微丸成型.     

三棱丸抑制大鼠子宫内膜异位症血管生成及VEGF,TNF-α表达的研究

目的:考察三棱丸(SLW)抑制子宫内膜异位症(EMS)血管生成作用及机制。方法:以SLW作用于子宫内膜异位症大鼠模型,免疫组化方法检测异位内膜组织中微血管密度(MVD)、血管生成因子VEGF及TNF-α蛋白的表达,RT-PCR方法检测异位组织中VEGF mRNA和TNF-α mRNA的表达。结果:SLW能有效降低MVD,抑制异位内膜组织中VEGF,TNF-α蛋白和mRNA的水平。结论:SLW具有良好的抗EMS血管生成作用,其作用机制与抑制血管生成因子VEGF,TNF-α的水平有关。     

禹余粮丸方考及验案举例

宋赵开美本《伤寒论》88条中提出禹余粮丸,但只见方名,未列药物。后世医家对于该方是否存在以及药味多少争论不一,笔者对此进行了简单的回顾与梳理,并举验案,以供同道参考。     

冰己抑瘤丸对胶质瘤患者化疗敏感性及P21、VEGF表达的影响

目的探讨冰己抑瘤丸对胶质瘤患者化疗敏感性及P21、VEGF表达的影响。方法将90例确诊为神经脑胶质瘤的患者随机分为A组（冰己抑瘤丸＋替莫唑胺）30例、B组（汉防己＋替莫唑胺）30例、C组（安慰剂＋替莫唑胺）30例。对比3组总有效率、化疗敏感率及毒副反应发生率。分析治疗前后3组P21、VEGF表达水平的变化。结果 A组总有效率、化疗敏感率高于B、C组（P〈0.05）,毒副反应发生率低于B、C组（P〈0.05）。A组治疗后P21、VEGF表达水平显著低于B、C组（P〈0.05）。结论冰己抑瘤丸可提高胶质瘤患者化疗敏感性及治疗效果,抑制P21、VEGF表达水平,促进患者预后。     

细辛油的抗炎作用

腹腔注射细辛油0.24 ml/kg对角叉菜胶引起的大鼠足肿胀有抑制作用。此作用在切除肾上腺的大鼠亦能看到。细辛油能降低炎症组织及其渗出液中组胺含量,对组胺或PGE₂引起的大鼠足肿胀有抑制作用,并能对抗组胺或PGE₂引起的毛细血管通透性增加,本品能抑制大鼠胸腔因注射角叉菜胶后引起的白细胞游走;对大鼠棉球肉芽肿有抑制作用,并使胸腺萎缩,还降低正常大鼠肾上腺内维生素C含量。     

格列吡嗪缓释微丸胶囊的制备及其体外释放

目的:对格列吡嗪缓释微丸胶囊的处方和工艺进行考察,并考察其体外释放行为。方法:以微丸成球性和释放度作为考察指标,采用正交设计试验优化处方和工艺。结果:格列吡嗪缓释微丸胶囊的最优处方为格列吡嗪5 g,微晶纤维素(MCC)4.5 g,乙基纤维素(EC)5 g,羟丙甲纤维素K4M 7 g,最佳工艺以50%乙醇溶液作为黏合剂,采用挤出滚圆法制备微丸,35 r/min滚圆10 min,200 r/min高速剪切5 min;所制微丸圆整度好,平面临界角12.4°,收率93.8%;释药行为符合一级释药方程,具有明显的缓释特征。结论:格列吡嗪缓释微丸胶囊具有良好的体外缓释效果。     

双氯酚酸钠米索前列醇片的抗炎作用研究

双氯酚酸钠米索前列醇片（ＤＳＭＴ）（２０,１０ｍｇ／ｋｇ）连续２ｄ灌胃给药可显著地抑制二甲苯所致鼠耳肿胀（Ｐ〈０．０１,Ｐ〈０．０５）;ＤＳＭＴ（１５,７．５ｍｇ／ｋｇ）灌胃给药均可非常显著抑制角叉菜胶至炎后３ｈ内大鼠足肿胀;ＤＳＭＴ高、低剂量组（１５,７．５ｍｇ／ｋｇ）灌胃给药７ｄdisplay structure     

The effect of density on the gastric emptying of single- and multiple-unit dosage forms

The gastric emptying of pellets and single units of different densities has been followed in healthy subjects using the technique of gamma scintigraphy. The gastric emptying of the light pellets was affected by their buoyancy in the upper part of the stomach. However, the mean gastric emptying rates of pellets and single units were not significantly affected by density. Floating or buoyant delivery systems may have little advantage over conventional systems. The presence of food in the stomach was found to be the major factor in determining the gastric emptying of single units.     

Anti-Inflammatory and Anti-Nociceptive Activities of Methanolic Extract of the Leaves of Fraxinus Floribunda Wallich

Fraxinus floribunda Wallich (Family-Oleaceae) is a wide green tree in the sub-alpine region of Sikkim, India. The methanolic extract of the leaves of Fraxinus floribunda (MEFF) at 100, 200 and 400mg/kg/p.o was screened in rats for anti-inflammatory activity by acute-carrageenan induced paw edema, sub-acute cotton pellet induced granuloma and chronic Freund''s adjuvant induced arthritis models. In all the three models of anti- inflammatory studies 200 and 400mg/kg/p.o doses of the extract showed significant effect (P<0.001). Antinociceptive evaluation was performed by writhing and tail-immersion tests in mice. Anti-nociceptive evaluation revealed that MEFF at the dose of 400mg/kg/p.o had significant activity against the control. The relieving effect was through the peripheral and central mechanism of action of the extract. This study rationalized the ethno medicinal use of the plant for relieving pain in inflammatory pathological conditions like fracture and dislocation.     

食物对呋喃妥因不同剂型吸收的影响

目的 :考察食物对呋喃妥因肠溶包衣片 (NF TA)和呋喃妥因缓释微丸 (NF PE) 2种不同剂型吸收的影响。方法 :在空腹和进食条件下分别给 4名健康志愿者单剂量交叉口服NF PE和NF TA。采用尿药法研究食物对呋喃妥因不同剂型吸收的影响。结果 :进食条件下 ,NF TA平均累积尿药排泄百分率由空腹时 31 34 %提高至 41 46 % (P <0 0 5 ) ,而在空腹和进食条件下 ,NF PE无明显变化。NF PE和NF TA在进食条件下给药较空腹给药有效尿药浓度的持续时间延长。结论 :NF TA的吸收受食物的影响大 ,而NF PE的吸收受食物影响变化不明显