西藏地产藏药大叶秦艽的抗溃疡病作用研究

目的观察西藏地产藏药大叶秦艽的抗溃疡病作用,同时研究其初步作用机理。方法采用预防性给药,观察大叶秦艽乙醇提取物(石油醚脱脂)组分对阿司匹林诱导大鼠胃溃疡模型及无水乙醇诱导大鼠胃粘膜损伤胃溃疡模型的作用。结果西藏地产藏药大叶秦艽乙醇提取物(石油醚脱脂)组分能明显缩小阿司匹林及乙醇诱导大鼠胃溃疡模型的溃疡面积,大剂量有减少胃液总量作用和胃蛋白总量分泌作用,与对照组相比有显著性差异。结论该提取物有预防溃疡病作用,其机理有待进一步研究。     

秦艽-威灵仙药对的网络药理学研究

目的探讨秦艽-威灵仙药对"活性成分-作用靶点-信号通路-相关疾病"网络间的关系。方法通过中药系统药理学分析平台(TCMSP)、PubChem、SwissTargetPrediction数据库检索秦艽-威灵仙药对的活性成分及其作用靶点;通过STRING、DAVID、CTD等数据库查询药对作用靶点蛋白的相互作用关系并预测其作用通路和生物过程以及药对可治疗疾病的种类,进而讨论秦艽和威灵仙配伍后产生的药理作用规律。结果(1)秦艽-威灵仙药对共检索得到活性成分13个(11种),二者共有活性成分2个;(2)oleanolic acid和lematosideA’qt是秦艽-威灵仙药对治疗疾病的关键活性成分,此外还有环烯醚萜类化合物、植物甾醇类化合物、皂苷类化合物、环烯醚萜苷类化合物、三萜化合物等成分在药对治疗疾病过程中发挥药效;(3)通过靶点蛋白的相互作用网络分析发现重要靶点55个,degree值排名前五的重要靶点分别为GAPDH、MAPK3、MAPK1、PTGS2和ESR1;(4)活性成分作用靶点与相关疾病网络分析得出药对可以治疗包括类风湿关节炎、肝细胞癌、实验性肝硬化、乳腺癌、前列腺癌和肥胖症等473种疾病;(5)共富集到GO生物过程28条,发现药对活性成分参与机体半乳糖代谢过程、类固醇生物合成过程、胰岛素抵抗过程、氮代谢过程、非小细胞肺癌发生过程、血管平滑肌收缩过程、药物代谢的合成过程等;(6)富集KEGG信号通路:秦艽-威灵仙药对活性成分主要对肿瘤、神经传导、炎症、内分泌等4大类信号通路发挥作用。结论秦艽-威灵仙药对的活性成分丰富,作用靶点多样,影响通路和生物过程繁杂,对自身免疫疾病、肿瘤、心血管疾病和化学药物损伤等方面的疾病具有较好疗效。     

不同产地秦艽的质量和遗传多样性研究

目的:对不同产地秦艽的质量和遗传多样性进行研究。方法:使用性状、显微鉴别方法进行鉴别研究,采用高效液相色谱法进行龙胆苦苷含量测定,利用RAPD技术对其遗传多样性和遗传结构进行研究。结果:表明不同产地秦艽的性状、显微特征具有差异,其有效成分龙胆苦苷的含量也具有一定的差异,各种群的遗传多样性水平依次为湟中种群(K)>环县种群(J)>子午岭种群(H)。结论:对不同地区秦艽药材的外部形态、内部构造、有效成分含量和遗传水平的顺序,为保护野生品种、确保引种栽培秦艽药材的质量提供了科学依据。     

超声提取秦艽中龙胆苦苷的工艺优选

目的:优选提取秦艽中龙胆苦苷的最佳工艺。方法:采用正交试验法,以龙胆苦苷含量为指标,考察了乙醇用量、提取时间、提取次数及提取温度对秦艽中龙胆苦苷提取率的影响,优选出合理的提取工艺。结果:以乙醇用量为30 ml、提取时间为20 min、提取次数为4次、提取温度为50℃最佳。结论:经验证性实验证明所优选条件可靠,适合秦艽中龙胆苦苷的提取工艺参考。     

雷公藤叶组分TZT-5对大鼠关节炎的抑制作用

目的 评价雷公藤叶组分TZT-5抗炎作用,尤其是对关节炎的抑制作用.方法 采用巴豆油诱导的小鼠耳炎模型、角叉菜胶诱导的大鼠足肿胀模型、鸡Ⅱ型胶原(CCII)诱导的大鼠关节炎模型和佐剂诱导的大鼠关节炎模型,观察TZT-5的体内抗炎活性和抗关节炎的作用.结果 TZT-5可减轻上述4个模型的炎症症状,抑制CCII和佐剂致关节炎大鼠滑膜组织炎性细胞浸润和滑膜组织增生.结论 TZT-5具有较好的抗炎作用,可明显抑制CCII和佐剂所致大鼠关节炎,具有研发成为新的抗类风湿性关节炎药物的潜力.     

Anti-inflammatory effects of an herbal medicine (Xuan-Ju agent) on carrageenan- and adjuvant-induced paw edema in rats

Xuan-Ju agent is an herbal formula containing aqueous extract of Formica fusca, Herba epimedii, Fructus cnidii, and Fructus lycii, all of which are reputed for their beneficial effects in the treatment of the immunodeficient diseases such as rheumatoid arthritis. We performed a study on the anti-inflammatory effects of this agent using carrageenan- and adjuvant-induced paw edema in rats. Xuan-Ju agent showed a marked inhibitory effect on edema in two models of inflammation in rats, at the dose of 0.20, 0.40 and 0.80g/kg. Based on this study, Xuan-Ju agent is considered to be a potentially useful drug suitable for further evaluation for rheumatoid arthritis.     

藏药粗茎秦艽、蓝玉簪龙胆的生药学鉴定

采用原植物、性状、显微、薄层鉴定的方法对藏药粗茎秦艽、蓝玉簪龙胆进行系统的生药学鉴定,为其鉴别及应用提供科学依据。结果表明:通过原植物、性状、显微、薄层色谱图研究能够很好地鉴定原植物。     

Nimbolide attenuates complete Freund's adjuvant induced arthritis through expression regulation of toll-like receptors signaling pathway

Nimbolide is an active constituent of Azadirachta indica and is known for its anti-inflammatory, anti-oxidant, immune-modulatory, and anti-cancer effects. Few studies suggest that nimbolide treatment influences the responses to rheumatoid arthritis, but the underlying molecular mechanisms involved are not yet well established. Therefore, the present study was designed to determine the effect of nimbolide on expression regulation of toll-like receptors to attenuate rheumatoid arthritis. The rheumatoid arthritis model was established by injecting complete Freund's adjuvant (CFA) intra-dermally into the sub-plantar region of the left hind paw of rats. Nimbolide (20 mg/kg) and piroxicam (10 mg/kg) were given to arthritic rats. Rats treated with nimbolide showed a significant reduction in inflammatory cells, rheumatoid factor, ESR, and improved the body weight. The results indicated that nimbolide possesses the capacity to attenuate rheumatoid arthritis by downregulating toll-like receptors, IL-17, IL-23, HSP70, and IFN-γ expression levels. Nimbolide treatment showed significant reduction in the severity of inflammation and destruction of joints and showed comparable effects to piroxicam, which is a standard non-steroidal anti-inflammatory drug used for the treatment of rheumatoid arthritis. It can be concluded that nimbolide can be considered as a potential candidate for therapeutic targeting of the toll-like receptors pathway in rheumatoid arthritis.     

家种及野生秦艽、麻花秦艽的rRNA基因间隔区PCR产物电泳图谱的初步研究

目的：分析甘肃不同地区家种及野生中药材秦艽Gentiana macrophylla、麻花秦艽G.straminea中提取的DNA中rRNA基因内转录间隔区PCR扩增产物的电泳图谱，为秦艽、麻花秦艽等不同品种鉴别和品质评价从分子水平提供依据。方法：提取中药材家种及野生秦艽、麻花秦艽的核基因组DNA，利用合成的特异性PC及引物对所提取的DNA中rRNA基因内转录间隔序列进行nPCR扩增，扩增产物行琼脂糖凝胶电泳以得到电泳图谱并进行分析。结果：琼脂糖凝胶电泳图谱显示不同秦艽DNA中rRNA基因内转录间隔区长度均在360bp左右，已具备足够的遗传信息量进行碱基序列分析。结论：不同秦艽DNA中rRNA基因内转录间隔区PCR扩增产物可作为从分子水平进行鉴别的标记之一。     

大叶秦艽HPLC指纹图谱研究

目的建立大叶秦艽药材HPLC指纹图谱分析方法,为其质量控制和药材鉴别提供依据.方法高效液相色谱法,色谱柱Shimadzu C18(150mm×4.6 mm, 5μm);洗脱条件甲醇-0.4%磷酸水溶液梯度洗脱;检测波长230nm;柱温25℃;流速1.0mL/min.结果确定构成大叶秦艽药材指纹的5个共有峰,所测定的14批秦艽药材具有很高的相似度,劣质秦艽及伪品秦艽相似度较低.结论大叶秦艽药材的HPLC指纹图谱可用于药材鉴别和质量控制.     

蒙药白花龙胆花总黄酮提取工艺及醇提物的抗炎活性研究

目的建立蒙药白花龙胆花总黄酮提取工艺,确定其醇提物的抗炎活性。方法根据单因素试验结果,选择乙醇浓度(A)、料液比(B)、提取时间(C)为3个考察因素,每个因素设置3个水平,利用L9(3)4正交表做正交提取试验,以芦丁为对照品,以总黄酮含量为评价指标,确定白花龙胆花总黄酮最佳提取工艺,并通过小鼠耳肿胀实验和肉芽肿实验评价其醇提物的抗炎活性。结果白花龙胆花总黄酮最佳提取工艺为:70%乙醇,料液比1:30,提取时间为20 min,醇提物在一定浓度下具有较强抗炎活性。结论各因素对白花龙胆花中总黄酮提取影响的顺序是料液比>乙醇浓度>提取时间,白花龙胆花醇提物有明显的抗炎作用。     

祖师麻抗类风湿性关节炎有效部位的药效学研究

目的 研究祖师麻抗类风湿性关节炎的有效部位.方法 采用系统溶剂提取法对祖师麻进行提取、分离得到不同部位的提取物.以抗炎镇痛、刺激性等为指标,通过动物实验确定了祖师麻治疗类风湿性关节炎的有效部位及不良反应的部位.结果 乙酸乙酯提取物和正丁醇提取物为祖师麻抗类风湿关节炎的有效部位,刺激性主要来源于石油醚部位.结论 初步确定...     

胡蜂毒提取物对胶原诱导性类风湿性关节炎大鼠的作用研究

目的建立胶原诱导性类风湿关节炎(collagen-induced arthritis,CIA)大鼠模型来探讨胡蜂毒提取物对大鼠类风湿性关节炎(rheumatoid arthritis,RA)的治疗作用。方法将SD大鼠随机分为正常组、模型组、阳性对照组(注射用蜂毒冻干粉,1.25 mg·kg^-1)和胡蜂毒提取物低、中、高剂量(0.125、0.25、0.5 mg·kg^-1)组,除正常组外,其余各组采用多点注射鸡Ⅱ型胶原加完全弗氏佐剂的方法来诱导大鼠RA模型,每7 d一次,共14 d。造模结束后,各给药组于足趾皮下注射对应剂量的药物,连续给药14 d。分别于造模前、造模第14天和给药第14天测量大鼠踝关节直径和周长,并进行AI评分;观察大鼠脏器指数和踝关节组织HE染色的变化;采用酶联免疫吸附测定(ELISA)检测大鼠血清中相关炎症因子白细胞介素(IL)-1β、IL-6、肿瘤坏死因子(TNF)-α、IL-8、前列腺素(PG)E-2、环氧化酶(COX)-2和类风湿因子免疫球蛋白(Ig)G、Ig A、Ig M的含量变化;利用流式细胞术检测大鼠脾脏T细胞亚群的变化。结果与模型组比较,胡蜂毒提取物对CIΑ大鼠的关节肿胀(直径及周长)抑制效果显著(P<0.01),能明显降低其AI评分(P<0.01或P<0.05),能不同程度恢复大鼠的脏器指数(P<0.01或P<0.05),改善踝关节组织病理学结构病变,降低大鼠血清中各炎症因子和类风湿因子的表达(P<0.01或P<0.05),调节和改善T细胞亚群比例的紊乱(P<0.01或P<0.05)。结论胡蜂毒提取物对CIA大鼠具有较好的治疗作用,这与其对炎症细胞因子网络的调控和对免疫的调节有关系。     

陕西产秦艽的化学成分研究

目的:对陕西产秦艽Gentiana macrophylla根的化学成分进行系统研究。方法:利用多种色谱手段对秦艽的脂溶及水溶部分进行分离;用UV,IR,MS,¹H-,¹³C-NMR等技术及对照品对照进行鉴定。结果:鉴定了8个化合物,其中脂溶部位4个,分别是:5-羧基-3,4-二氢-1H-2-苯并吡喃-1-酮(5-carboxyl-3,4-dihydrogen-1H-2-benzopyran-1-one1),红白金花内酯(erythrocentaurin 2),栎瘿酸(roburic acid 3),齐墩果酸(oleanolic acid 4)。水溶部位4个:龙胆苦苷(gentiopicroside 5),獐牙菜苦苷(swertiamarine 6),獐牙菜苷(sweroside 7),6′-O-β-D-葡萄糖基龙胆苦苷(6′-O-β-D-gluco-sylgentiopicroside 8)。结论:1为新化合物,命名为红白金花酸,2为首次从本属植物中分得,8为首次从秦艽中分得。     

秦艽愈伤组织的培养及其龙胆苦苷含量的研究

目的:为扩大和提高甘肃道地药材秦艽资源的利用效率。方法:以秦艽种子的萌发所获得的幼芽作为外植体,诱导形成愈伤组织;筛选诱导愈伤组织产生的不同培养基和培养条件,并继代培养;应用HPLC法测定龙胆苦苷的含量。结果:秦艽愈伤组织生长的最佳培养基为MS+2,4-D(1.0 mg/L)+6-BA(0.5 mg/L),最佳继代培养基为MS+2,4-D(1.0 mg/L)+6-BA(0.5 mg/L)+NAA(0.5 mg/L),最佳继代时间为30 d。龙胆苦苷积累量在指数生长后期(28～30 d)达最高,为0.78 mg/g DW。结论:筛选出了适宜的秦艽愈伤组织培养方法。秦艽愈伤组织在固体培养基上的生长曲线呈"S"型,且愈伤组织中龙胆苦苷的积累量随愈伤组织增殖而不断增加。     

正交实验法优选秦艽中龙胆苦苷提取工艺

目的优选出秦艽中龙胆苦苷的提取最佳工艺。方法采用正交试验法,以龙胆苦苷含量为指标,考察了乙醇浓度、浸取时间、溶媒用量及提取次数对秦艽中龙胆苦苷提取率的影响,优选出合理的提取工艺。结果用乙醇浓度为70%,浸取时间为36 h,溶媒用量为药材的10倍,提取次数为3次为最佳。结论经验证性实验证明所优选条件可靠,适合秦艽中龙胆苦苷的提取工艺参考。     

Studies on the anti-inflammatory and related pharmacological properties of the aqueous extract of Bridelia ferruginea stem bark

The anti-inflammatory profile of the aqueous extract of Bridelia ferruginea stem bark was investigated using both in vivo and in vitro models. The extract exhibited strong topical anti-inflammatory effect shown as inhibition of croton oil-induced ear oedema in mice, and reduced hind-paw swelling and growth retardation in the adjuvant-induced arthritis model in rats, following oral administration at 10, 20, 40 or 80 mg/kg. The extract (10-80 mg/kg, p.o.) caused an inhibition of increase in vascular permeability in both cyclophosphamide-induced haemorrhagic cystitis and acetic acid-induced vascular permeability in rats and mice, respectively. B. ferruginea produced stabilization of erythrocytes exposed to heat and stress-induced lysis. Antipyretic and analgesic properties of the extract were also observed.     

Evaluation of anti-inflammatory and anti-arthritic property of ethanolic extract of Clitoria ternatea

Objective: Clitoria ternatea is a well-known bioactive plant used to treat several inflammatory ailments in Ayurvedic system of medicine in India. The present investigation aimed to determine the anti-inflammatory and anti-arthritic activity of ethanolic extract of Clitoria ternatea roots (EECT) in animal models. Methods: The anti-inflammatory activity of the EECT was evaluated by carrageenan and histamine-induced paw edema. Results: EECT showed a significant reduction in mean paw edema volume in both carrageenan and histamine-induced inflammation. The efficacy of EECT in rheumatoid arthritis was tested against Freund’s complete adjuvant (CFA) induced arthritic models in Wistar rats. The anti-arthritic effect of EECT was determined by systematic scoring of arthritis symptoms and measuring paw edema. A considerable decrease in paw diameter was observed in the EECT (200 and 400 mg/kg) and diclofenac (10 mg/kg) treated groups after day 7. Diclofenac (10 mg/kg) and EECT (400 mg/kg) showed a significant reduction in paw diameter from day 14 compared with CFA control (P < 0.001). The anti-arthritic activity was also confirmed from the altered biochemical, haematological (Hb, RBC and WBC) and anti-oxidant parameters (SOD, MDA, CAT, and GSH). EECT (400 and 200 mg/kg) also showed a marked inhibition of joint destruction. Conclusion: This study provides a pharmacological rationale for the traditional use of C. ternatea against inflammation and rheumatoid arthritis in India.     

Estimation of naphthaquinones from Arnebia hispidissima (Lehm.) DC. In vivo and in vitro. I. Anti-inflammatory screening

The hexane extract of Arnebia hispidissima yielded a mixture of naphthaquinones: arnebin-1, arnebin-7, tiglic acid (ester of dihydroxy alkannin), alkannin, arnebinol and cycloarnebin-7. To evaluate the anti-inflammatory activities of hexane extract and isolated naphthaquinones, models with carrageenan-induced acute arthritis and complete Freund's adjuvant (CFA)-induced chronic arthritis in rats were conducted. The observed results indicated that pretreatment with cycloarnebin-7 significantly inhibited the carrageenan-induced acute arthritis. Moreover, arnebin-1, significantly suppressed the development of chronic arthritis induced by CFA. The present study deals with the quantification of naphthaquinones from in vivo and in vitro cell cultures of plant species and isolated compounds from intact plant tested for their swelling inhibitory potency. It has been reported that arnebin-1 was the major naphthaquinone both in vivo (0.62%) and in vitro (0.27%) cell cultures.     

痹痛灵颗粒对佐剂性关节炎大鼠疗效实验研究

目的观察痹痛灵颗粒对佐剂性关节炎大鼠疗效的影响.方法采用弗氏完全佐剂造模,观察该药对模型鼠关节肿胀度、胸腺、脾重等指标的影响.结果本方能减轻模型鼠关节肿胀度、胸腺、脾重,抑制模型鼠体重减轻.结论痹痛灵颗粒具有抗炎及免疫抑制作用,可能是其对类风湿关节炎有较好治疗作用的机理之一.