共查询到19条相似文献,搜索用时 125 毫秒
1.
目的:探讨地黄饮子对小鼠抗体激发水平的影响。方法:将40只经卵核蛋白免疫过的小鼠随机分A、B两组,分别灌服地黄饮子和葡萄糖,1次/d,每次0.5mL只,连续7d后,加强免疫,再经7d,用ELISA法检测血清中相应抗体生成水平。结果:与葡萄糖组比较,地黄饮子组小鼠抗体水平升高,差异有显著性意义(P<0.05)。结论:地黄饮子有可能促进小鼠抗体激发水平和免疫水平的提高。 相似文献
2.
地黄中腺苷含量的影响因素 总被引:1,自引:0,他引:1
地黄中腺苷含量的影响因素朱青罗燕燕王瑛龚韬郄春鹏(北京市临床药学研究所,北京100035)TheinfluencefactorsonadenosinecontentintheroottuberofRehmanniaglutinosaLibosch.Z... 相似文献
3.
重茬地黄土壤酚酸的动态积累及其对地黄生长的影响 总被引:5,自引:1,他引:5
为了探究酚酸物质与地黄连作障碍之间的关系,检测了重茬地黄土壤中阿魏酸、香草酸、香草醛和对羟基苯甲酸等4种酚酸物质的积累量,并通过水培条件下添加酚酸,研究了4种酚酸对地黄生长的影响。结果表明:阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加,而对羟基苯甲酸含量先升高后降低;外加阿魏酸(8 μg·ml-1)、香草酸(0.8 μg·ml-1)、香草醛(1.2 μg·ml-1)和对羟基苯甲酸(3.0 μg·ml-1)对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用;酚酸处理使地黄叶片叶绿素含量降低,除对羟基苯甲酸外差异性极显著;经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降,丙二醛含量升高,其中阿魏酸的处理使根中酶活性降至最低,根部腐烂死亡。推测4种酚酸可能是造成地黄化感作用的物质。 相似文献
4.
驱虫斑鸠菊对小鼠免疫分子的影响 总被引:4,自引:0,他引:4
探讨驱虫斑鸠菊对小鼠免疫功能的影响,揭示其免疫作用机理。利用[^3H]-TdR参入法测定驱虫斑鸠菊对小鼠体内免疫功能的影响,运用酶联免疫吸附实验测定驱虫斑鸠菊对小鼠B淋巴细胞分泌抗体功能的影响;采用流式细胞测定方法测定CD19B细胞亚类表达水平;采用[^3H]-TdR参入法利用CTLL-2细胞株测定T淋巴细胞分泌IL-2活性。结果驱虫斑鸠菊的低、中、高三个剂量对体内T、B淋巴细胞的增殖活性、血清总抗体和抗原特异性抗体含量、CD19B细胞亚类表达均有明显的抑制作用,对T淋巴细胞分泌IL-2活性也具有明显抑制作用。说明驱虫斑鸠菊对机体体液免疫和细胞免疫功能都具有明显抑制作用。 相似文献
5.
6.
PP333与BA组合对怀地黄试管苗生长发育的影响 总被引:3,自引:0,他引:3
本文研究了PP333与BA组合对怀地黄(Rehmanniaglutinosa)试管苗生长发育的影响。结果表明:(1)与对照相比,不同浓度的PP333与0.5mg.L-1BA组合均严重地抑制试管苗根、茎和叶的生长,表现为植株矮小,生根晚,前期根畸形生长(呈棒状或球状);(2)与单独使用0.5mg.L-1BA相比,低浓度PP333(0.01和0.1mg.L-1)与0.5mg.L-1BA组合促进茎的伸长和加粗;(3)2mg.L-1PP333与0.5mg.L-1BA组合能显著地提高愈伤组织芽的分化率和腋芽的萌发率,有利于试管苗的快速繁殖。 相似文献
7.
王建华教授是我国中药复方药理研究的开拓者之一 ,在该领域的教学和科研中都作出了重要贡献。王教授的辛苦经营和执著追求的精神 ,值得学习 相似文献
8.
药用植物内生放线菌具有合成天然活性化合物的潜力,放线菌新种是寻找新型抗生素先导化合物的一个重要来源。【目的】挖掘药用植物地黄内生放线菌资源,并对地黄轮纹病拮抗菌株leaf-16进行新种鉴定。【方法】本研究采用五步消毒法分离河南道地药材地黄的内生放线菌,以地黄轮纹病原真菌草茎点霉(Phoma herbarum)为指示菌,采用平板对峙法筛选对该病菌有抑制作用的菌株,16S rRNA基因测序发现一株抗地黄轮纹病的放线菌新种leaf-16。通过形态、生理生化、细胞壁化学组分和分子生物学等特征对菌株leaf-16进行多相分类学鉴定。【结果】经平板对峙实验得到8株抗地黄轮纹病的放线菌,其中菌株leaf-16经16S rRNA基因测序、形态比较、生理生化、化学组分和分子生物学以及DNA-DNA杂交分析,确定菌株leaf-16为1株链霉菌新种,并命名为Streptomyces folium。【结论】菌株leaf-16为1株链霉菌新种,具有抑制地黄轮纹病原真菌的活性,为进一步分离新型抗地黄轮纹病的生物制剂奠定物质基础。 相似文献
9.
10.
中药藤黄的研究和应用 总被引:14,自引:0,他引:14
藤黄为藤黄科植物藤黄树 ( Garcinia hanbaryiHook. f.)的树干被割伤后流出的胶状树脂。主产柬埔寨、泰国和越南 ,我国广东省和海南省有栽培。藤黄为树脂 70 %~ 80 % ,树胶 1 5 %~ 2 5 %等的混和物。其中含藤黄酸 ( gambogic acid) 2 2 . 75 %~36.5 9% ,新藤黄酸 ( neogambogic acid)、别藤黄酸( allogambogic acid)等成分 [1~ 3 ]。中医用于攻毒 ,消肿 ,祛腐敛疮 ,止血 ,杀虫。主治痈疽肿毒 ,溃疡 ,湿疮 ,肿瘤 ,顽癣 ,跌打损伤 ,创伤出血及烫伤。国外用作利尿剂 ,治疗水肿和脑出血时降血压等 ,收载于美国药典第十版。近 2 0年来 ,国内… 相似文献
11.
Mingsan Miao Mengfan Peng Hongbao Chen Baosong Liu 《Saudi Journal of Biological Sciences》2019,26(3):582-588
Purpose
Explore the effect of Baihe Dihuang powder on chronic stress depression rat models.Methods
Chronic stress depression rat models were established with different stimuli for 21?days. At the same time, the drug was administered for 21 consecutive days. The animals were weighed once a week after the start of the formal experiment. On the second day after the end of drug administration, conduct sugar water consumption test and open-filed box experiment, and conduct behavioral observation; At the end of behavioral testing, blood was taken from the eyeball and plasma was separated to measure MDA level and erythrocyte SOD activity; Take brain for homogenate, then measure the contents of 5-HT, NE and DA in brain tissue homogenate; Take the thymus and spleen, stained with 10% formalin fixation, embedding and HE staining, then use microscope to observe the histopathological changes.Results
Chronic stress depression rats model replicated successfully. Each group of given drugs could increase the weight, the consumption of sugar water, and improve the behavioral score, increase erythrocytes SOD activity and decrease MDA level of plasma, increase the content of 5-HT, NE and DA of brain homogenate, and improve the pathological changes of thymus and spleen of chronic stress depression model animals.Conclusion
Chronic stress depression rat model replicates successfully. Baihe Dihuang powder can interfere chronic stress depression rats model through different action pathways. 相似文献12.
多囊卵巢综合征是育龄期女性最常见的疾病之一,以多种内分泌代谢紊乱为特征。近年来的研究发现肠道菌群和多囊卵巢综合征的发生发展相关,肠道菌群和中医的关系已成为研究热点。本文分析了肠道菌群及其代谢产物和肠道屏障在多囊卵巢综合征发生发展中的作用,总结了单味中药和复方中药通过影响肠道菌群改善多囊卵巢综合征的研究进展。今后研究中应进一步探索与多囊卵巢综合征相关的特异菌属,探索中药有效成分及作用靶点,为中医治疗多囊卵巢综合征提供新思路。 相似文献
13.
目的:观察羌活地黄汤对大鼠佐剂性关节炎软骨中基质金属蛋白酶-1(marxmetalloproteinase-1,MMP-1)、基质金属蛋白酶-13(matrixmetalloproteinase.13,MMP-13)及基质金属蛋白酶抑制剂-1(tissueinhibitorofmetalloprotease-1,TIMP-1)表达的影响。方法:Wistar大鼠32只,随机分为正常对照组、模型组、雷公藤对照组、羌活地黄汤组。制作大鼠佐剂性关节炎模型,造模第14天开始给药。羌活地黄汤组予混有羌活地黄汤的颗粒饲料,雷公藤组给予混有雷公藤多甙的饲料,正常组及模型组均给予普通饲料。第28天分别取各组胫骨平台关节软骨,采用免疫组织化学染色测定软骨中MMP-1、13及T1MP—1表达的阳性指数。结果:模型组MMP-1、MMP-13及TIMP—1表达的阳性指数水平明显高于正常组,差异有统计学意义(P〈0.01),羌活地黄汤组MMP-1、13及TIMP-1表达阳性指数低于模型组,差异有统计学意义(P〈0.05)。结论:羌活地黄汤可能是通过调控软骨细胞外基质中MMP.1、MMP—13及TIMP-1表达变化而维持软骨的动态平衡,从而延缓RA骨骼破坏。 相似文献
14.
摘要 目的:研究羌活地黄汤对佐剂性类风湿关节炎(RA)大鼠辅助性T细胞/调节性T细胞(Th17/Treg)失衡、血清基质金属蛋白酶-3(MMP-3)、基质金属蛋白酶-13(MMP-13)以及滑膜组织血管内皮生长因子(VEGF)、核因子-κB受体活化因子配基(RANKL) mRNA表达的影响。方法:取40只SD级大鼠进行研究,将其以随机数字表法分为正常对照组、模型组、羌活地黄汤组以及甲氨蝶呤组,每组各10只。除正常对照组外,其余各组大鼠均建立佐剂性RA动物模型。羌活地黄汤组予以羌活地黄汤灌胃干预,甲氨蝶呤组予以甲氨蝶呤灌胃干预,正常对照组及模型组均予以等量生理盐水灌胃干预。各组均进行为期28d的干预,比较各组体重、关节炎指数及关节肿胀度、外周血Th17/Treg相关指标、血清MMP-3、MMP-13水平、滑膜组织VEGF、RANKL mRNA表达。结果:模型组体重低于正常对照组,羌活地黄汤组、甲氨蝶呤组关节炎指数及关节肿胀度均低于模型组,而体重高于模型组(均P<0.05)。模型组、羌活地黄汤组、甲氨蝶呤组的外周血CD4+IL-17+T、Th17/Treg均高于正常对照组,而Foxp3+CD4+CD25+Treg低于正常对照组,且羌活地黄汤组、甲氨蝶呤组的外周血CD4+IL-17+T、Th17/Treg均低于模型组,而Foxp3+CD4+CD25+Treg高于模型组(均P<0.05)。模型组、羌活地黄汤组、甲氨蝶呤组的血清MMP-3、MMP-13水平均高于正常对照组,而羌活地黄汤组、甲氨蝶呤组的血清MMP-3、MMP-13水平均低于模型组(均P<0.05)。模型组、羌活地黄汤组、甲氨蝶呤组的滑膜组织VEGF、RANKL mRNA表达水平均高于正常对照组,而羌活地黄汤组、甲氨蝶呤组的滑膜组织VEGF、RANKL mRNA表达水平均低于模型组(均P<0.05)。结论:羌活地黄汤可改善佐剂性RA大鼠的症状以及Th17/Treg失衡状态,且有效改善其血清MMP-3、MMP-13水平以及滑膜组织VEGF、RANKL mRNA表达。 相似文献
15.
双向发酵——毒性中药炮制减毒的新途径 总被引:4,自引:0,他引:4
就现代双向发酵工艺替代传统杂菌发酵工艺,运用于毒性成分分别为生物碱、内酯物质、苷类化合物、毒蛋白、马兜铃酸、蒽醌、鞣质和重金属8类毒性中药炮制减毒的可行性、可靠性进行综合论述。 相似文献
16.
目的:探讨重组b FGF滴眼液联合杞菊地黄丸对绝经后干眼症女性血清与泪液中MMP-2及性激素水平的影响。方法:收集我院收治的绝经后干眼症女性患者76例,随机分为对照组和实验组,每组38例。对照组患者给予重组牛碱性成纤维细胞生长因子滴眼液治疗,实验组在对照组基础上给予杞菊地黄丸治疗。观察并比较两组患者治疗前后血清以及泪液中E2、MMP-2水平。结果:与治疗前相比,两组患者治疗后血清以及泪液中E2水平均升高,而MMP-2水平均下降,差异具有统计学意义(P0.05);与对照组相比,实验组患者治疗后血清以及泪液中E2水平较高,而MMP-2水平较低,差异具有统计学意义(P0.05)。结论:重组b FGF滴眼液联合杞菊地黄丸能够升高绝经后干眼症女性血清与泪液中E2水平,降低MMP-2水平,对临床具有指导意义。 相似文献
17.
This study aimed to investigate the effects of rat anti-mouse interleukin (IL)-6 receptor antibody (MR16-1) on the recovery of cognitive function in stroke mice. Adult male C57BL/6 mice were subjected to middle cerebral artery occlusion (MCAO). Mice were randomly assigned into three groups: sham group, model group, and MR16-1 group. After the treatment of MR16-1, spatial learning and memory performance of mice were evaluated by the Morris water maze (MWM) and Y-maze tests. Then, brain slices were obtained and infarct volume and neuronal apoptosis were assessed by 2,3,5-triphenyltetrazolium chloride (TTC) staining and Terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, respectively. Protein expression levels of apoptosis-associated proteins and multiple inflammatory cytokines were determined by Western blot analysis. Real-time quantitative PCR (RT-PCR) was used to examine the mRNA levels of various inflammatory cytokines in brain slices and cerebrospinal fluid (CSF). The results showed that MR16-1 improved performances of stroke mice in MWM and Y-maze tests. Moreover, MR16-1 ameliorated MCAO-induced infarct, neuronal apoptosis, and inflammatory response. Furthermore, MR16-1 promoted the expression of Bcl-2 and inhibited the expression of Bax in stroke mice, which revealed the inhibitory effect of MR16-1 on neuronal apoptosis. IL-6 levels in brain and CSF were both decreased by MR16-1 treatment in stroke mice. MR16-1 ameliorated cognitive dysfunction and apoptosis in stroke mice, involving the inhibition of inflammatory response and pro-apoptotic Bax, and the up-regulation of anti-apoptotic Bcl-2. The data supported that MR16-1 might be a potential therapeutic drug for the treatment of stroke. 相似文献
18.
The absence of specific immune response is a hallmark of prion diseases. However, in vitro and in vivo experiments have provided evidence that an anti-PrP humoral response could have beneficial effects. Prophylactic passive immunization performed at the time of infection delayed or prevented disease. Nonetheless, the potential therapeutic effect of PrP antibodies administered shortly before the clinical signs has never been tested in vivo. Moreover, a recent study showed the potential toxicity of PrP antibodies administered intracerebrally. We aimed at evaluating the effect of a prolonged intracerebral anti-PrP antibody administration at the time of neuroinvasion in BSE infected Tg20 mice. Unexpectedly, despite a good penetration of the antibodies in the brain parenchyma, the treatment was not protective against the development of BSE. Instead, it led to an extensive neuronal loss, strong astrogliosis and microglial activation. Since this effect was observed after injection of anti-PrP antibodies as whole IgGs, F(ab')2 or Fab fragments, the toxicity was directly related to the ability of the antibodies to recognize native PrP and to the intracerebral concentration achieved, and not to the Fc portion or the divalence of the antibodies. This experiment shows that a prolonged treatment with anti-PrP antibodies by the intracerebral route can induce severe side-effects and calls for caution with regard to the use of similar approaches for late therapeutic interventions in humans. 相似文献
19.
手机版Google Earth定位功能在中药资源普查中应用 总被引:1,自引:0,他引:1
样地是中药资源普查系统随机生成的特定区域,样地常地处偏僻地区,使用普通定位系统难以准确、高效地抵达样地点,且在到达样地前无法获取样地周边道路和环境状况信息,给野外调查工作增加了难度。在全国第四次中药资源普查中,我们将样地GPS信息转换为Google Earth地标文件,并导入手机端Google Earth应用中,实现搜寻样地的实时定位功能,直观地显示了卫星地图上的样地信息,为中药资源普查提供更为便捷、高效、直观的样地定位方式。 相似文献