土甘草抗炎镇痛作用研究

目的:对土甘草水提取物和醇提取物的抗炎、镇痛作用厦急性毒性进行研究.方法:采用二甲苯致小鼠耳廓肿胀法、醋酸扭体法观察土甘草的抗炎、镇痛作用;以土甘草水提物1.57g/ml,醇提物2.40g/ml,最大剂量40ml/kg分别对小鼠灌胃给药,观察其急性毒性.结果:土甘草对二甲苯所致小鼠耳肿胀有明显的抑制作用(P<0.05);对0.7%醋酸所致小鼠扭体反应有明显的抑制作用(P<0.05).土甘苹水提物对小鼠灌胃给药的最大耐受量为62.8g生药/kg;醇提物对小鼠灌胃给药的最大耐受量为96.0g生药/.结论:土甘草具有一定的抗炎、镇痛作用;土甘草水提物及醇提取物未出现其它毒性反应.     

矮地茶水提物及醇提物急性毒理学研究

目的：对矮地茶水提物及醇提物的急性毒性进行研究。方法：对矮地茶水提物及醇提物的半数致死量（LD50）进行测定。结果：矮地茶水提物及醇提物对小鼠灌胃给药的LD50分别为115.77±10.31g/kg,95%可信限为105.92～126.54g/kg、94.71±10.13g/kg,95%可信限为85.12～105.38g/kg。结论：经急性毒性研究,可为矮地茶的临床安全用药提供科学依据。     

土甘草药理作用研究

目的 对土甘草水提取物和醇提取物的抗炎、镇痛作用及急性毒性进行研究.方法 采用二甲苯致小鼠耳廓肿胀法、 醋酸扭体法观察土甘草的抗炎、镇痛作用;以土甘草水提物1.57 g·ml~(-1),醇提物2.40 g·ml~(-1),最大剂量40 ml·kg~(-1)分别对小鼠灌胃给药,观察其急性毒性.结果 土甘草对二甲苯所致小鼠耳肿胀有明显的抑制作用(P<0.05);对0.7%醋酸所致小鼠扭体反应有明显的抑制作用(P<0.05).土甘草水提物对小鼠灌胃给药的最大耐受量为 62.8 g生药·kg~(-1);醇提物对小鼠灌胃给药的最大耐受量为96.0 g生药·kg~(-1).结论 土甘草具有一定的抗炎、镇痛作用;土甘草水提物及醇提取物未出现其它毒性反应.     

含羞草醇提物镇痛抗炎抗氧化活性研究

目的 观察含羞草醇提物的镇痛、抗炎、抗氧化作用及急性毒性研究。方法 采用小鼠醋酸扭体法、小鼠二甲苯耳廓肿胀试验、小鼠抗氧化试验，以及急性毒性试验。结果 含羞草醇提物能减少醋酸所致的小鼠扭体反应次数，降低二甲苯所致小鼠耳廓肿胀度，可提高SOD的活性，降低MDA的含量。含羞草小鼠灌胃急性毒性试验的最大给药量为13.34 g/kg·bw(相当于生药106.72 g/kg·bw),各组均未出现动物死亡。结论 含羞草醇提物具有明显的镇痛、抗炎、抗氧化作用，且毒性低。     

赶山鞭水提取物及醇提取物毒性及抗炎镇痛作用

目的:观察赶山鞭水提取物和醇提取物的急性毒性、抗炎作用及镇痛作用。方法:最大浓度(按生药量计)赶山鞭水提物(2.35 g.mL-1)及醇提物(3.12 g.mL-1)以最大给药容积(0.4 mL.10 g-1)给小鼠ig给药,观察其急性毒性反应;分别采用二甲苯致小鼠耳廓肿胀法、醋酸扭体法观察赶山鞭水提取物及醇提取物的抗炎及镇痛作用。结果:赶山鞭水提物及醇提取物对小鼠ig给药的最大耐受量按生药量计分别为94.0,124.8 g.kg-1。赶山鞭水提取物及醇提取物对二甲苯所致小鼠耳肿胀及醋酸所致小鼠扭体反应有明显的抑制作用。结论:赶山鞭水提物及醇提取物对小鼠具有一定的抗炎、镇痛作用。     

野棉花醇提物镇痛抗炎止泻及安全性实验研究

目的观察野棉花醇提物的镇痛、抗炎、止泻作用及急性毒性研究。方法采用小鼠醋酸扭体法、小鼠二甲苯耳廓肿胀、小鼠肠推进实验,以及急性毒性试验。结果野棉花醇提物能减少醋酸所致的小鼠扭体反应次数,降低二甲苯所致小鼠耳廓肿胀度,可显著抑制墨汁在小鼠小肠的推进运动。野棉花醇提物24h内小鼠灌胃给药最小致死量为16.00 g/kg.bw(相当于生药101.91 g/kg.bw),死亡率为10%;最大耐受量为13.60 g/kg.bw(相当于生药86.62 g/kg.bw),死亡率为0%。结论提示野棉花醇提物具有明显的镇痛、抗炎、止泻作用,且具有一定毒性。     

小叶金花草抗炎镇痛作用

目的:对小叶金花草水提取物和醇提取物的抗炎、镇痛作用及急性毒性进行研究。方法:采用二甲苯致小鼠耳廓肿胀法、醋酸扭体法观察小叶金花草的抗炎、镇痛作用;以小叶金花草水提物1.62 g·mL-1,醇提物2.34 g·mL-1,最大给药容积40 mL·kg-1分别对小鼠ig给药,观察其急性毒性。结果:小叶金花草水提取物和醇提取物10,5,2.5 g·kg-1对二甲苯所致小鼠耳肿胀有明显的抑制作用(P<0.05),抑制率分别为35.9%,32.5%,29.5%和31.0%,30.0%,24.6%;小叶金花草水提取物和醇提取物对0.7%醋酸所致小鼠扭体反应有明显的抑制作用(P<0.05);小叶金花草水提物对小鼠ig给药的最大耐受量为56.5 g·kg-1;醇提物对小鼠ig给药的最大耐受量为85.7 g·kg-1。结论:小叶金花草具有一定的抗炎、镇痛作用;小叶金花草水提物及醇提取物在所试最大耐受剂量未观察到明显毒性反应。     

癃清片抗炎镇痛作用研究

目的:研究和比较癃清片不同溶剂提取物的抗炎镇痛作用。方法:采用二甲苯致小鼠耳肿胀、角叉菜胶诱导小鼠足肿胀进行抗炎实验,采用热板法和醋酸扭体法进行镇痛实验,比较癃清片醇提取物、水提取物、二氯甲烷和正丁醇部位的抗炎镇痛作用。结果:癃清片醇提物、水提物均具有不同程度的抗炎镇痛作用,同剂量之间比较以醇提取物活性较强。癃清片正丁醇部位(0.23g/kg、0.46g/kg)能明显降低二甲苯致炎小鼠血清中PGE2、MAD、TNF-α含量,醇提正丁醇部位(0.46g/kg)抑制角叉菜胶致小鼠足趾肿胀,该部位(0.12g/kg、0.23g/kg、0.46g/kg)能延长热板所致的小鼠舔后足的时间,该部位(0.23g/kg、0.46g/kg)减少醋酸致小鼠扭体反应的次数。结论:癃清片具有明显的抗炎镇痛活性,醇提取物的正丁醇部位可能是其一个有效部位。     

飞龙掌血醇提物药理作用研究及急性毒性试验

目的观察飞龙掌血醇提物的药理作用及急性毒性研究。方法采用小鼠醋酸扭体法、小鼠二甲苯耳廓肿胀、小鼠剪尾法及玻片法止血实验,以及急性毒性试验。结果飞龙掌血醇提物能减少醋酸所致的小鼠扭体反应次数,降低二甲苯所致小鼠耳廓肿胀度,促进小鼠凝血时间,但不能促进小鼠剪尾止血时间。飞龙掌血醇提物最小致死量为10.56 g/kg.bw(相当于生药245.58 g/kg.bw),死亡率为10%。最大耐受量为9.50 g/kg.bw(相当于生药220.93 g/kg.bw),死亡率为0%。结论提示飞龙掌血醇提物具有明显的镇痛、抗炎、止血作用,且具有一定毒性。     

水黄皮根乙醇提取物的抗炎镇痛作用及其急性毒性的实验研究（英文）

目的：研究水黄皮根乙醇提取物的抗炎镇痛作用及其急性毒性。方法：抗炎实验采用二甲苯致小鼠耳肿胀法及大鼠棉球肉芽肿法；镇痛实验采用小鼠热板和醋酸扭体实验；采用Bliss法测定了其半数致死量（LD50）。结果：PRE可明显抑制二甲苯所致小鼠耳廓的肿胀度，抑制大鼠棉球肉芽肿的增长；可明显对抗醋酸所致小鼠的扭体次数增加，提高热板所致小鼠的痛阈值；其LD50为6．3718s／kg，LD50的95％平均可信限为5．4084～7．7232s／kg。结论：水黄皮根乙醇提取物具有明显抗炎镇痛作用，并且其急性毒性很小。     

Antinociceptive, anti-inflammatory effects and acute toxicity of aqueous and ethanolic extracts of Myrtus communis L. Aerial parts in mice

Myrtus communis L. aerial parts have been used in traditional medicine for the treatment of inflammatory disease. In this study 350 mice were divided into three main groups: negative (saline), positive (morphine or diclofenac) controls, and test groups. The acute toxicity was assessed for 2 days. Antinociceptive activity was performed using hot plate and writhing tests. The anti-inflammatory effect was investigated using xylene-induced ear edema and a cotton pellet test. According to phytochemical screening, the extracts contained tannins, alkaloids, and flavonoids. The LD50 values of the aqueous and ethanolic extracts were 0.473 and 0.79 g/kg, respectively. In hot plate test, the aqueous and ethanolic extracts showed significant antinociceptive activity that was inhibited by naloxone. The extracts exhibited antinociceptive activity against acetic acid-induced writhing and also showed significant activity against acute inflammation which was dose dependent for aqueous extract. The ethanolic (0.05 g/kg) and aqueous extracts (0.005, 0.015, and 0.03 g/kg) demonstrated anti-inflammatory effects against chronic inflammation. The aqueous and ethanolic extracts of the aerial parts of M communis L. showed antinociceptive effects and these may be mediated by opioid receptors.     

Antinociceptive and free radical scavenging activities of Cocos nucifera L. (Palmae) husk fiber aqueous extract

In the current study, the analgesic and free radical scavenging properties of an aqueous extract from the husk fiber of Cocos nucifera L. (Palmae) were demonstrated by the use of in vivo and in vitro models. The orally administered Cocos nucifera aqueous extract (200 or 400 mg/kg) inhibited the acetic acid-induced writhing response in mice. Tail flick and hot plate assays demonstrated that treatment of animals with this plant extract at 200 mg/kg induced attenuation in the response to a heat stimulus. A LD(50) of 2.30 g/kg was obtained in acute toxicity tests. Topic treatment of rabbits with the Cocos nucifera extract indicated that it does not induce any significant dermic or ocular irritation. In vitro experiments using the 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) photometric assay demonstrated that this plant extract also possesses free radical scavenging properties.     

Anti-inflammatory and analgesic activity of Peperomia pellucida (L.) HBK (Piperaceae)

An aqueous extract of the aerial part of Peperomia pellucida (L.) HBK (Piperaceae) was tested for anti-inflammatory (paw edema induced by carrageenin and arachidonic acid) and analgesic activity (abdominal writhes and hot plate) in rats and mice, respectively. Oral administration of 200 and 400 mg/kg of the aqueous extract exhibited an anti-inflammatory activity in the carrageenin test, which was based on interference with prostaglandin synthesis, as confirmed by the arachidonic acid test. In the abdominal writhing test induced by acetic acid, 400 mg/kg of the plant extract had the highest analgesic activity, whereas in the hot-plate test the best dose was 100 mg/kg. The LD(50) showed that Peperomia pellucida (5000 mg/kg) presented low toxicity.     

水黄皮根乙醇提取物的抗炎镇痛作用及其急性毒性的实验研究（英文）

目的：研究水黄皮根乙醇提取物的抗炎镇痛作用及其急性毒性。方法：抗炎实验采用二甲苯致小鼠耳肿胀法及大鼠棉球肉芽肿法；镇痛实验采用小鼠热板和醋酸扭体实验；采用Bliss法测定了其半数致死量（LD50）。结果：PRE可明显抑制二甲苯所致小鼠耳廓的肿胀度，抑制大鼠棉球肉芽肿的增长；可明显对抗醋酸所致小鼠的扭体次数增加，提高热板所致小鼠的痛阈值；其LD50为6．3718s／kg，LD50的95％平均可信限为5．4084～7．7232s／kg。结论：水黄皮根乙醇提取物具有明显抗炎镇痛作用，并且其急性毒性很小。     

两种不同挥发油含量柴胡制剂药效作用研究

目的:对比两种不同挥发油含量柴胡制剂的抗炎、镇痛、解热作用。方法:分别采用二甲苯致炎剂所致小鼠耳廓肿胀实验,醋酸引起小鼠疼痛扭体实验,干酵母致大鼠发热实验,观察两种柴胡制剂的抗炎、镇痛、解热作用,并比较二者差异。结果:采用抗炎、镇痛、解热三种动物模型研究表明,普通柴胡浸膏5g生药/kg、10g生药/kg,富集挥发油的柴胡浸膏5g生药/kg、10g生药/kg均可显著减轻二甲苯所致的小鼠耳肿胀,减少醋酸所致的小鼠扭体反应次数,降低干酵母引起的大鼠体温升高,其中富集挥发油的柴胡浸膏的抗炎活性优于普通柴胡浸膏,但镇痛和解热活性两种浸膏无显著性差异。结论:两种不同挥发油含量柴胡浸膏均具有明显的抗炎、镇痛和解热作用,但柴胡挥发油抗炎活性较高。     

Anti-inflammatory, analgesic activity and acute toxicity of Sida cordifolia L. (Malva-branca)

Sida cordifolia L. (Malvaceae) is used in folk medicine for the treatment of inflammation of the oral mucosa, blenorrhea, asthmatic bronchitis and nasal congestion. The anti-inflammatory, analgesic effects and acute toxicity of an aqueous extract of S. cordifolia were evaluated in animal models. The extract was prepared using leaves collected before the flowering period. The aqueous extract (AE) showed a significant inhibition of carrageenin-induced rat paw edema at a dose of 400 mg/kg administered orally, but did not block the edema induced by arachidonic acid. The AE also increased the latency period for mice in the hot plate test, and inhibited the number of writhes produced by acetic acid at the oral dose of 400 mg/kg. The aqueous extract of S. cordifolia showed low acute toxicity in mice.     

Antinociceptive, anti-inflammatory and acute toxicity effects of Zataria multiflora Boiss extracts in mice and rats

Antinociceptive, anti-inflammatory and acute toxicity of the aqueous infusion and ethanolic maceration extracts of the aerial parts of Zataria multiflora Boiss were studied in mice and rats. Antinociceptive activity was done using hot-plate and writhing tests. The effect of the extracts against acute inflammation was studied by vascular permeability increased by acetic acid and xylene induced ear edema in mice. The activity of the extracts against chronic inflammation was assessed by the cotton pellet test in rats. LD50 of the infusion and maceration extract was 3.85 and 3.47 g/kg, respectively. Intraperitoneal injection of both extracts in mice showed significant and dose-dependent antinociceptive activity. Naloxone, an opioid antagonist, pretreatment inhibited the antinociceptive activity of the extracts. The extracts exhibited antinociceptive activity against acetic acid induced writhing which was partially blocked by naloxone. Both extracts did not show remarkable activity against acute inflammation induced by acetic acid in mice. In the xylene ear edema, Z. multiflora Boiss extracts showed significant activity in mice. In the chronic inflammation the efficacy of the extracts was more than in acute inflammation. It is concluded that aqueous infusion and maceration of the aerial parts of Z. multiflora Boiss have antinociceptive effect and this may be mediated by opioid receptors. The extracts showed also anti-inflammatory effect against acute and chronic inflammation.     

牛白藤抗炎镇痛作用有效部位的筛选

目的比较研究牛白藤的不同溶剂提取物的抗炎镇痛作用,为牛白藤的临床应用以及筛选分离活性成分提供实验依据。方法采用二甲苯致小鼠耳廓肿胀和醋酸致小鼠毛细血管通透模型评价药物的抗炎作用,采用小鼠热刺激致痛和醋酸扭体模型评价镇痛作用,比较牛白藤水提物、醇提物及不同溶剂萃取物的抗炎镇痛作用。结果牛白藤水提物、醇提物均具有抗炎镇痛作用,同剂量之间比较以醇提物活性较强;牛白藤石油醚、乙酸乙酯萃取物能明显减轻二甲苯诱导的小鼠耳肿胀程度,抑制热刺激和醋酸引起的小鼠疼痛反应。结论牛白藤具有明显的抗炎镇痛活性,石油醚萃取物和乙酸乙酯萃取物可能是其主要有效部位。     

中草药东风菜水和醇提取物的镇痛作用研究

目的对中草药东风菜水和醇2种提取物的镇痛效果进行评价。方法采用水和75%乙醇2种溶剂分别对东风菜药材进行提取,通过冰醋酸致小鼠扭体实验、热板致小鼠足痛实验观察东风菜水和醇2种提取物的镇痛作用。结果与生理盐水组比较,东风菜2种提取物高(7.2 g/kg)、低(3.6 g/kg)剂量组对冰醋酸致小鼠扭体和热板致小鼠足痛有明显的抑制作用(P<0.01,P<0.05),且存在量效关系。结论东风菜具有较好的镇痛作用,其水提物的镇痛效果优于醇提物。