JL-GE对SD大鼠血液流变性的影响

目的观察银杏叶、白蒺藜全草提取物的复合制剂 (JL -GE)对血液流变性的影响。方法选用18月龄雄性SD大鼠分为四组 ,分别用生理盐水、阿斯匹林和JL -GE(分两种剂量 ,Ⅰ组JL -GE150mg/kg/d ,Ⅱ组JL-GE300mg/kg/d)灌胃 ,半月后检测其血液流变学指标。结果不同剂量的两个JL -GE实验组的高、低切变率下全血粘度、血浆粘度、纤维蛋白原含量明显低于生理盐水模型组 (P<0.01 ,P<0.05) ,其中纤维蛋白原含量也显著低于对照组 (P<0.05) ,而两个实验组动物红细胞压积与模型组之间没有显著差异 (P>0.05)。结论JL -GE可能通过降低红细胞聚集性 ,提高红细胞变形能力 ,降低纤维蛋白原的含量改善SD大鼠的全血粘度和血浆粘度。     

Effects of Cholinergic Receptor Agonists and Antagonists on Miniature Stimulatory Postsynaptic Ionic Currents in Somatic Muscle Cells of <Emphasis Type="Italic">Lumbricus Terrestris</Emphasis>

Miniature stimulating postsynaptic currents of Lumbricus terrestris somatic muscle cells were recorded. Atropine, d-tubocurarin, α-bungarotoxin, carbacholine, and proserin did not modify the amplitude and temporal parameters of miniature stimulatory postsynaptic currents, while carbacholine and nicotine depolarized the muscle membrane. Presumably, Lumbricus terrestris muscle cells contain acetylcholine-sensitive channel-receptor complexes not belonging to classical nicotinic or muscarinic acetylcholine receptors.__________Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 139, No. 3, pp. 342–345, March, 2005     

蒺藜果实化学成分及其抗氧化活性研究

目的 研究蒺藜Tribulus terrester果实的化学成分及其抗氧化活性。方法 综合利用硅胶柱色谱、Sephadex LH-20凝胶柱色谱等分离手段进行分离纯化;结合NMR、MS、IR、UV等波谱学技术来鉴定化合物的结构;通过DPPH法、ABTS法以及羟基自由基清除方法测定化合物的抗氧化活性。结果 从蒺藜果实75%甲醇提取物中分离鉴定了10个化合物,分别为(E)-4-hydroxy-N-(3-(4-hydroxy-3-methoxyphenyl)acryloyl)benzamide(1)、蒺藜酰胺（2）、海柯皂苷元（3）、25R-螺甾-4-烯-3,12-二酮（4）、槲皮素（5）、3,4’-二羟基-3’-甲氧基苯丙酮（6）、对羟基苯甲酸（7）、(9Z,11E)-13-hydroxy-9,11-octadecadienoic acid(8)、(8E,12Z)-10-hydroxy-8,12-octadecadienoic acid(9)、肉豆蔻酸（10）,其中化合物1～6对DPPH、ABTS自由基以及羟基自由基均有较显著的活性,并且化合物5清除ABTS自由基和羟基自由基半数抑制浓度（...     

高效液相色谱法-蒸发光散射检测器测定蒺藜中蒺藜新苷的含量

目的:建立蒺藜中蒺藜新苷的含量测定方法。方法:应用高效液相色谱法-蒸发光散射检测器,Supelco C18色谱柱(250mm×4.6mm,10μm),乙腈-甲醇-水(30:10:60)为流动相,流速为1.0 mL·min-1,Sedex蒸发光散射检测器参数:漂移管温度41℃,压力2.2×105 Pa。测定了蒺藜中蒺藜新苷的含量。结果:蒺藜新苷在3.988-13.96μg范围内有良好线性关系,r=0.9995(n=6)。蒺藜新苷的平均回收率为97.5％(n=6)。结论:该方法快速简便,灵敏、准确,可用于蒺藜药材中蒺藜新苷的含量测定。     

中药面膜治疗痤疮40例

目的 评价中药面膜方治疗痤疮的临床疗效.方法 选择15 ～ 30岁痤疮患者51例,随机分为治疗组40例和对照组11例,治疗组睡前外敷中药(白芷、刺蒺藜、茯苓等)面膜方,前5d为1次/d,后改为隔日1次,一般护理及禁忌.对照组予一般护理及禁忌.2组疗程均为30 d,比较2组临床疗效,观察2组治疗前后的积分情况及不良反应.结果 治疗组总有效率90％,对照组总有效率27.3％,治疗组疗效优于对照组(P＜0.01).2组总积分从治疗后均有下降,且与治疗前比较,P＜0.05或P＜0.01.治疗组治疗后总积分与对照组比较,P＜ 0.01.治疗组疗效指数优于对照组(P＜0.01).治疗组中不同分级痤疮患者之间疗效指数比较,差异无统计学意义(P＞0.05).结论 中药面膜方治疗15 ～ 30岁痤疮患者,能有效减轻皮损严重程度、减少皮损数量及减轻皮肤自觉症状,对于不同程度分级的痤疮均有一定疗效.     

Ethnopharmacological Studies of Tribulus Terrestris (Linn). in Relation to Its Aphrodisiac Properties

Synergism and antagonism impact of different plant metabolites present in crude fruit extract of Tribulus terrestris ‘the herbal Viagra’ have been studied. Variability in plant composition, biomass and metabolites concentration in different modules was significantly contributed by spatial factor. However the edhaphic parameters also changes with both spatial and temporal factors significantly. Fruit is the officinal part and the fruit production significantly related with soil nitrogen (P<0.01), whereas the soil nitrogen and pH also influenced the alkaloid content in fruit (P<0.05). The linear relation between fruit protein and fruit alkaloid (P<0.01) also observed and the relationship in between different soil parameters were established. Bioassay work confirmed its aphrodisiac properties, and site III is suggested for maximum biomass and high concentration of different metabolites.     

蒺藜果实的化学成分研究

目的研究蒺藜科植物蒺藜Tribulus terrester的干燥成熟果实的化学成分。方法利用硅胶柱色谱、Sephadex LH-20凝胶柱色谱、制备HPLC和薄层色谱等方法进行分离、纯化,并结合HR-ESI-MS与现代波谱学技术鉴定化合物结构。结果从蒺藜果实中分离得到14个化合物,分别鉴定为N-p-阿魏酰酪胺(1)、N-trans-p-coumaroyl-3-O-methyldopamine(2)、甲基阿魏酸(3)、咖啡酸甲酯(4)、原儿茶酸甲酯(5)、trifilines A(6)、5β-spirost-25(27)-en-3β-ol-12-one 3-O-{β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranoside}(7)、tribulosaponin B(8)、isoterrestrosin B(9)、25(R)-螺甾烷-3,5-二烯-12-酮(10)、25(R)-螺甾烷-24β-羟基-4-烯-3,12-酮(11)、26-O-β-D-glucopyranosyl-(25S)-5α-furostane-20(22)-en-12-one-3β,26-diol-3-O-α-L-rhamnopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→4)]-β-D-galactopyranoside(12)、terrestrinone A1(13)和terrestrinone A2(14)。结论化合物1～7为首次从蒺藜科植物中分离得到。     

Effect of Tribulus terrestris on Haloperidol-induced Catalepsy in Mice

Haloperidol, an antipsychotic drug, leads to the development of a behavioural state called catalepsy, in which the animal is not able to correct an externally imposed posture. In the present study we have attempted to evaluate the anticataleptic effect of Tribulus terrestris on haloperidol-induced catalepsy in albino mice. Mice were allocated to four groups, each group containing six animals. Both, the test drug, Tribulus terrestris and the standard drug trihexyphenidyl were uniformly suspended in 1% gum acacia solution. Catalepsy was induced in mice with haloperidol (1.0 mg/kg, intraperitoneally). The first group received the vehicle (10 ml/kg, orally), the second group received trihexyphenidyl (10 mg/kg, orally) and the remaining two groups received Tribulus terrestris (100, 200 mg/kg, orally). The animals were assessed after single and repeated dose administration for ten days, 30 min prior to haloperidol, using standard bar test. The result of the present study demonstrates Tribulus terrestris has a protective effect against haloperidol-induced catalepsy, which is comparable to the standard drug used for the same purpose. Our study indicates Tribulus terrestris can be used to prevent haloperidol-induced extrapyramidal side effects.     

蒺藜总皂苷对动脉粥样硬化家兔NF-kB和ICAM-1、TNF-α水平的影响

目的从血管壁组织NF-κB和血清ICAM-1、TNF-α水平等方面,探讨蒺藜总皂苷抗动脉粥样硬化(AS)的作用机制。方法取50只健康雄性日本大耳白兔,随机取10只作为空白对照组,喂普通饲料。其余40只给予高脂饮食喂养4周后,再随机分为4组:模型组10只,继续喂高脂饲料;小剂量治疗组10只,喂高脂饲料和蒺藜总皂苷每只6.3mg/(kg·d);大剂量治疗组10只,喂高脂饲料和蒺藜总皂苷每只12.6mg/(kg·d);阳性药物对照组10只,喂高脂饲料和辛伐他汀每只2.35mg/(kg·d)。2周后,测定血脂、血清ICAM-1、TNF-α水平及血管壁组织NF-κB的含量。结果与模型组比较,小剂量、大剂量治疗组、阳性药物对照组ICAM-1、TNF-α浓度水平均降低;模型组NF-κB活化,表达增强,小剂量、大剂量治疗组、阳性药物对照组NF-κB表达的活性较模型组低。结论蒺藜总皂苷能通过减少动脉粥样硬化病灶中NF-κB的激活,降低血清中ICAM-1、TNF-α的含量,发挥抗动脉粥样硬化的作用。     

刺蒺藜对小鼠毛囊黑素细胞刺激素表达的影响

目的观察刺蒺藜水提物对C57BL/6J小鼠毛囊黑素细胞刺激素表达的影响,探讨刺蒺藜在毛囊休眠期黑素细胞活化、增殖及移行至表皮过程中的作用。方法选择在离体实验中对酪氨酸酶有激活作用、对黑素细胞有增殖作用及在临床应用中对白癜风有治疗作用的中药刺蒺藜,用SPF级C57BL/6J小鼠为实验动物,采用免疫组织化学技术观察高剂量(相当于成人1g/(kg·d)刺蒺藜水提物灌服后小鼠毛囊黑素细胞刺激素水平的变化,并用χ2检验进行统计学分析。结果黑素细胞刺激素在试验组小鼠毛囊细胞中阳性表达率为75.00%,在对照组小鼠毛囊细胞中阳性表达率为18.75%,两者比较有显著性差异(P<0.01)。结论高剂量刺蒺藜水提物可以提高小鼠毛囊黑素细胞刺激素的表达水平,并可能通过上调毛囊黑素细胞刺激素表达这一途径来活化酪氨酸酶、促进毛囊休眠期黑素细胞的增殖、移行及黑素合成。