桦褐孔菌的化学成分及抗炎活性

本实验研究了桦褐孔菌的化学成分及其抗炎活性。方法是采用溶剂法和柱色谱法提取分离桦褐孔菌的化学成分,根据化合物的理化性质及核磁共振氢谱、碳谱、质谱对其化学结构进行鉴定,然后采用二甲苯致小鼠耳肿胀和二甲苯致小鼠腹膜炎模型对所得化合物的抗炎活性进行考察。最终从桦褐孔菌的乙醇提取物中分离得到3个羊毛脂烷型三萜类化合物,分别鉴定为羊毛甾醇(1)、inotodiol(2)和trametenolic acid(3)。化合物1、2、3在10 mg/kg均显著抑制二甲苯致小鼠耳肿胀,化合物1和2在10 mg/kg时显著降低血管通透性。由此得出化合物1～3均有抗炎活性,其中trametenolic acid(3)的抗炎活性最强。     

白花龙胆花抗炎作用研究

为了研究白花龙胆花的抗炎作用,本文对白花龙胆花水提物和70%乙醇提取物的抗炎活性进行了试验,并测定了水提物和70%乙醇提物中龙胆苦苷的含量.试验采用二甲苯所致小鼠急性耳肿胀试验和二甲苯所致小鼠腹部毛细管通透性试验.将昆明种小白鼠分为7组,分别为空白对照组,白花龙胆花水提物高、中、低剂量组和70%乙醇提取物高、中、低剂量组,灌胃(ig)给药14 d后,用二甲苯分别于小鼠右耳及腹部致炎.测定左右耳重量,计算肿胀度及肿胀抑制率,测定吸光值.结果表明:白花龙胆花水提物和乙醇提取物的中、高剂量组对于二甲苯所致的小鼠急性耳肿胀和小鼠腹部毛细管通透性都有显著的抑制作用.从而表明:白花龙胆花具有显著的抗炎疗效.     

桔核中柠檬苦素类物质消炎镇痛作用的研究

为探讨柑桔果实中柠檬苦素类物质对实验动物模型的抗炎镇痛作用,本文通过小鼠耳廓肿胀模型和角叉菜胶致大鼠足肿胀模型观察柠檬苦素的抗炎作用;采用小鼠福尔马林实验及扭体实验观察柠檬苦素的镇痛作用。结果表明：柑桔果实中柠檬苦素类物质能显著抑制二甲苯致小鼠耳廓肿胀和角叉菜胶致大鼠足肿胀程度;减少扭体次数;显著提高小鼠福尔马林实验中的痛域。因此,柑桔果实中柠檬苦素类物质对本实验中的动物模型具有显著的抗炎及镇痛作用。     

合萌水提物抗炎镇痛作用的实验研究

目的:观察合萌水提物的抗炎、镇痛作用。方法:采用二甲苯致小鼠耳肿胀、角叉菜胶致小鼠足跖肿胀、醋酸致小鼠腹腔毛细血管通透性增加及醋酸致小鼠扭体实验、热板实验模型,观察合萌水提物的抗炎镇痛作用,并测定丙二醛(MDA)、一氧化氮(NO)的含量及超氧化物歧化酶(SOD)活性。结果:合萌水提物可抑制二甲苯致小鼠耳肿胀,减轻小鼠足跖肿胀,降低小鼠毛细血管通透性,减少醋酸致小鼠扭体次数,增加热板小鼠痛阈值,降低血清MDA、NO含量,提高血清SOD活性。结论:合萌水提物具有抗炎镇痛作用,作用机制可能与降低血管通透性、抑制NO等炎症介质产生及增强清除自由基、抗脂质过氧化能力有关。     

杨桃水提物对小鼠抗炎镇痛作用研究

为了研究杨桃水提物(Averrhoa caramhola L. water extract, AWE)对小鼠的抗炎、镇痛作用,采用蛋清致小鼠足跖肿胀和二甲苯致小鼠耳廓肿胀来建立炎症模型,通过比较致炎侧小鼠足跖、耳廓与非致炎侧小鼠足跖、耳廓的质量关系来观测AWE的抗炎作用,采用热板法观测其镇痛作用。将90只小鼠采用完全随机设计分组法分成3组:空白对照组、阿司匹林组及杨桃水提物组,每组30只,分别进行抗炎和镇痛系列判定试验。其中杨桃水提物组给予AWE(10.00 g/kg)灌胃、阿司匹林组给予阿司匹林(0.20 g/kg)灌胃、空白对照组给予相同体积蒸馏水灌胃,均每天1次,连续给药7 d。各组在末次给药后分别进行抗炎镇痛作用的观测。试验结果与空白对照组相比较后显示,AWE可明显抑制蛋清所致小鼠足肿胀、抑制二甲苯所致小鼠耳廓的肿胀度,可提高热板所致小鼠痛阈值(p0.05,p0.01),因此AWE具有明显的抗炎镇痛作用。     

麦冬咖啡的抗炎免疫功能研究

目的:观察麦冬咖啡抗炎免疫功能。方法:采用二甲苯致小鼠耳肿胀度炎症,测定小鼠的免疫器官脏体系数和羧甲基纤维素钠(CMC-Na_2)引起的小鼠腹腔白细胞数增多研究麦冬咖啡抗炎免疫作用。结果:连续灌胃给药7天,麦冬咖啡(0.5 g/kg和1 g/kg)可以显著抑制二甲苯致小鼠的耳廓肿胀程度,增加小鼠脾脏指数,抑制腹腔白细胞游走。结论:麦冬咖啡有明显的抗炎免疫作用。     

杜香不同提取部位的镇痛抗炎作用研究

采用小鼠醋酸扭体法和角叉菜胶致小鼠足掌肿胀模型筛选杜香三种提取部位镇痛抗炎作用.结果显示,甲醇提取物(10.0、1.0 mg/kg)和水提物(10.0 mg/kg)能显著抑制醋酸引起的小鼠扭体反应和角叉菜胶引起的小鼠足趾水肿.水提物(10.0 mg/kg)在致炎后2～4 h内效果接近吲哚美辛.高效液相色谱结果提示甲醇提取物的镇痛抗炎效果可能通过其所含黄酮类化合物实现.     

玉郎伞提取物抗炎作用研究

研究玉郎伞水提物及从玉郎伞中提取纯化的三种活性成份—黄酮、皂苷、多糖的抗炎作用。以巴豆油致炎小鼠耳廓肿胀、角叉菜胶诱发小鼠足跖肿胀及小鼠棉球肉芽肿模型分别观察玉郎伞水提物及三种成份对小鼠耳廓肿胀、足跖肿胀及棉球肉芽肿形成的抑制作用。结果表明,玉郎伞水提物及三种成份可抑制小鼠耳廓炎症、足跖肿胀及棉球肉芽肿的形成。因此,玉郎伞水提物及三种活性成份具有较强的抗炎作用。     

树舌胞内粗多糖的提取及其抗炎活性研究

采用正交试验设计,对微波辅助法提取树舌胞内多糖的工艺进行了优化;采用二甲苯致小鼠耳肿胀模型、角叉菜胶致小鼠足肿胀模型对多糖抗炎活性进行了研究。根据极差分析确定了微波辅助法的最优工艺为微波处理10 min、液料比40∶1、提取2次。按此工艺多糖提取率为24.92%,多糖得率和含量分别为188.3 mg/g和78.47%。抗炎活性试验结果表明:树舌胞内多糖高、中、低剂量组对二甲苯致小鼠耳肿胀有明显的抑制作用,抑制率分别为52.16%、37.80%、27.97%,与空白对照组均有极显著性差异(P0.01);树舌胞内多糖高、中、低剂量可显著抑制角叉菜胶致小鼠足肿胀,具有良好的抗炎作用。     

大血藤醇提物抗炎镇痛和止血活性研究初探

为观察大血藤醇提物抗炎、镇痛、止血活性,该文采用75%乙醇提取制备大血藤醇提物(AESC),利用HPLC法测定其绿原酸含量; KM鼠(或新西兰兔)在测定抗炎、镇痛、止血活性时随机分为空白对照组、阳性对照组(云南白药酊组)、AESC组,依次测定其抑制二甲苯致小鼠耳肿胀度作用、痛阈值和兔肝脏局部创面损伤出血的记分分值,分别考察其抗炎、镇痛、止血作用。结果表明:AESC中绿原酸含量为(0.294±0.013 5)%;与空白组比较,剂量为0.700 g·kg~(-1)的AESC组能显著减轻二甲苯所致的小鼠耳肿胀度(P0.01),抑制率达26.3%;与空白组及给药前比较,剂量为1.40 g·kg~(-1)的AESC组均能显著提高小鼠痛阈值(P0.01);与空白组相比,剂量为1.40 g·kg~(-1)的AESC组能显著提高兔肝脏局部创面损伤出血的记分分值(P0.001)。大血藤醇提取物具有显著的抗炎、镇痛、止血作用,有望将其开发为抗炎、镇痛、止血制剂。该结果也为大血藤的临床应用提供理论依据。     

Anti-inflammatory activity of licochalcone A isolated from Glycyrrhiza inflata

Licochalcone A was isolated from the roots of Glycyrrhiza inflata and evaluated for its anti-inflammatory activity in xylene-induced mice ear edema and carrageenan-induced paw edema tests. At the same time, the inhibition of prostaglandin biosynthesis by licochalcone A was also studied in lipopolysaccharide (LPS)-induced mouse macrophage cells. At 5 mg/ ear, licochalcone A showed remarkable effects against acute inflammation induced by xylene, and at the doses of 2.5, 5, 10 mg/kg (p.o.), licochalcone A reduced significantly paw edema induced by carrageenan compared to the control at the fourth hour. Both COX-2 activity and expression were significantly inhibited by licochalcone A at all the test doses. Therefore, licochalcone A could be a useful compound for the development of new anti-inflammatory agents.     

Chemical fingerprint,acute oral toxicity and anti-inflammatory activity of the hydroalcoholic extract of leaves from Tocoyena formosa (Cham. & Schlecht.) K. Schum

Inflammation is a protective response of the organism against damaging agents, this process is considered beneficial, however in some situations, this response can be damage when exacerbated effect are present. This claim objective to evaluate the qualitative and quantitative chemical profile, acute toxic and anti-inflammatory effects of the hydroalcoholic extract of leaves from Tocoyena formosa (Cham. & Schlecht.) K. Schum. (HELTF). Quantitative and qualitative phytochemical analysis was performed by HPLC-DAD and colorimetric assay. The topical anti-inflammatory activity was determined in Croton oil-induced ear edema assay and systemic activity was performed in vascular permeability, paw edema induced by carrageenan and dextran. Phytochemical analysis of leaves from HELTF showed presence of tannin, flavonoid, saponins an other that confirmed by HPLC analysis. The extract did not cause significant with LD₅₀ greater than 5000 mg/kg and did not promote significate reduction in topical inflammatory process. However, HELTF demonstrate significant reduction of paw edema induced by carrageenan and dextran. The HELTF (200 mg/kg) reduced the protein/cell migration in the intradermal carrageenan-induced inflammation. Our results demonstrated that the first time the chemical profile and describe the effective action in systemic anti-inflammatory, antiedematogenic activity and low acute toxicity. This activity presents, supporting its traditional use. However, new studies are necessary for the detection and clarification of the possible mechanism of action.     

Evaluation of the anti-inflammatory activity of riparin II (O-methil-N-2-hidroxi-benzoyl tyramine) in animal models

Riparin II (RipII), an alkamide isolated from the green fruit of Aniba riparia, was tested in the various animal models of inflammation to investigate its anti-inflammatory activity. Male Wistar rats (180–240 g) were treated with RipII by gavage at doses 25 or 50 mg/kg, before initiating the inflammatory responses. The tests used were paw edema induced by carrageenan, dextran, histamine or serotonin; peritonitis induced by carrageenan and fMLP, as well as the measurement of MPO activity, TNF-α and Il-1β amount in the peritoneal fluid. In the animal models of carrageenan and dextran-induced paw edema, the animals treated with RipII showed lower edema than those of the control group. Treatment with RipII also reduced the paw edema induced by histamine but not serotonin. In the carrageenan-induced peritonitis model, treatment with RipII reduced leukocyte migration, the MPO activity and the amount of TNF-α and IL-1β in the peritoneal fluid. In summary, these results indicate that RipII has an anti-inflammatory activity in chemical models of acute inflammation. RipII might be directly or indirectly inhibiting the activity, production or release of pro-inflammatory mediators involved in the generation of the pain associated with inflammation.     

Spasmolytic and anti-inflammatory effects of constituents from Hertia cheirifolia

A sesquiterpenoid Bakkenolide (1), and two steroids, (3β, 22E)-Stigmasta-5, 22-diène-3-ol (Stigmasterol) (2) and stigmasterol 3β-glucoside (3), isolated from the Hertia cheirifolia (L.) chloroform extract, were evaluated respectively for their spasmolytic and anti-inflammatory activities. We note that these natural products were isolated and purified for the first time from the specie Hertia cheirifolia. Their structures have been established by spectroscopy (1 and 2D NMR experiences) and mass spectrometry. Chloroform-, ethyl acetate- and methanol-extracts were also tested for their spasmolytic and anti-inflammatory activities. Spasmolytic and anti-inflammatory screening were based respectively on the contractile response effects on rat isolated smooth muscles and on the dose-related carrageenan induced paw edema in rats. screening of the crude extracts showed spasmolytic and anti-inflammatory positive results. The antispasmodic effect of Bakkenolide was found in the same range as that of Alverine, a standard musculotropic spasmolytic agent.     

Spasmolytic and anti-inflammatory effects of constituents from Hertia cheirifolia

A sesquiterpenoid Bakkenolide (1), and two steroids, (3β, 22E)-Stigmasta-5, 22-diène-3-ol (Stigmasterol) (2) and stigmasterol 3β-glucoside (3), isolated from the Hertia cheirifolia (L.) chloroform extract, were evaluated respectively for their spasmolytic and anti-inflammatory activities. We note that these natural products were isolated and purified for the first time from the specie Hertia cheirifolia. Their structures have been established by spectroscopy (1 and 2D NMR experiences) and mass spectrometry. Chloroform-, ethyl acetate- and methanol-extracts were also tested for their spasmolytic and anti-inflammatory activities. Spasmolytic and anti-inflammatory screening were based respectively on the contractile response effects on rat isolated smooth muscles and on the dose-related carrageenan induced paw edema in rats. screening of the crude extracts showed spasmolytic and anti-inflammatory positive results. The antispasmodic effect of Bakkenolide was found in the same range as that of Alverine, a standard musculotropic spasmolytic agent.     

Mechanisms Involved in the Anti-Inflammatory Action of a Polysulfated Fraction from Gracilaria cornea in Rats

The anti-inflammatory mechanisms of the sulfated polysaccharidic fraction obtained from red marine alga Gracilaria cornea (Gc-FI) were investigated using a paw edema model induced in rats by different inflammatory agents (carrageenan, dextran, serotonin, bradykinin, compound 48/80 or L-arginine). Gc-FI at the doses of 3, 9 or 27 mg/kg, subcutaneously - s.c., significantly inhibited rat paw edema induced by carrageenan and dextran, as confirmed by myeloperoxidase and Evans’ blue assessments, respectively. Gc-FI (9 mg/kg, s.c.) inhibited rat paw edema induced by histamine, compound 48/80 and L-arginine. Additionally, Gc-FI (9 mg/kg, s.c.) inhibited Cg-induced edema in animals with intact mast cells but did not inhibit that with degranulated mast cells by compound 48/80, revealing a protective role on mast cell membranes. Gc-FI down-regulated the IL-1β, TNF-α and COX-2 mRNA and protein levels compared with those of the carrageenan group, based on qRT-PCR and immunohistochemistry analyses. After inhibition with ZnPP IX, a specific heme oxygenase-1 (HO-1) inhibitor, the anti-inflammatory effect of Gc-FI was not observed in Cg-induced paw edema, suggesting that the anti-inflammatory effect of Gc-FI is, in part, dependent on the integrity of the HO-1 pathway. Gc-FI can target a combination of multiple points involved in inflammatory phenomena.     

Synthesis and anti-inflammatory activity of fructigenine a derivatives

Several derivatives were synthesized from fructigenine A, which was isolated fromPenicillium fructigenum. The anti-inflammatory properties of fructigenine A was evaluatedin vivo with a 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced mouse ear edema model and a carrageenan-induced rat paw edema model. Results showed that the anti-in flammatory activity was significantly higher with fructigenine derivatives than with indomethacin, which was used as a standard. We concluded that fructigenine derivatives could exert an anti-inflammatory effect.     

活络效灵丹抗炎镇痛作用的实验研究

目的：研究活络效灵丹的抗炎、镇痛、消肿等药理作用,为该药的临床研究提供基础。方法：用二甲苯致小鼠耳肿胀法和角又莱胶致大鼠足肿胀法研究抗炎作用,用热板法和扭体法研究镇痛作用。结果：活络效灵丹能较好地抑制二甲苯引起的小鼠耳廓炎性肿胀和大鼠甲醛致足跖肿胀,能显著提高热板试验小鼠的痛阈,有效抑制冰醋酸引起的小鼠扭体反应次数。结论：活络效灵丹具有良好的抗炎、镇痛、消肿等作用。     

苦橙叶精油化学成分及抗炎作用研究

为探究苦橙叶精油的抗炎作用。实验采用气相-质谱联用法(GC-MS)分析精油成分,并建立脂多糖(LPS)诱导RAW 264.7细胞炎症模型,用Griess法检测一氧化氮(NO)含量评价其体外抗炎作用,随后进一步通过巴豆油致小鼠耳肿胀模型和鸡蛋清致小鼠足肿胀模型评价其体内抗炎作用。结果表明苦橙叶精油成分以酯类、醇类物质为主;25μg/mL浓度能显著抑制RAW 264.7细胞NO的释放;中浓度苦橙叶精油能明显减轻小鼠耳肿胀程度;低、中、高浓度苦橙叶精油均对小鼠足肿胀模型有炎症缓解作用,并于肿胀前期呈浓度依赖性。以上实验证明苦橙叶精油在体外和体内具有一定抗炎作用。