越鞠丸醇提物与水提物对抑郁模型小鼠的抗抑郁作用比较

目的探讨越鞠丸不同方法提取物的抗抑郁作用。方法采用小鼠悬尾实验和小鼠强迫游泳试验两种行为绝望鼠抑郁模型,对越鞠丸醇提物和水提物的抗抑郁作用进行比较。结果越鞠丸醇提物能不同程度地缩短小鼠悬尾不动时间和小鼠强迫游泳不动时间,具有较强的抗抑郁作用;而水提物活性不明显。结论乙醇冷浸为越鞠丸方药抗抑郁活性部位的较佳提取方法。     

植物药瓜子金抗抑郁活性部位初步研究

目的探讨远志属药用植物瓜子金提取物及不同部位的抗抑郁作用。方法瓜子金用常规醇提法得瓜子金醇提物,通过系统溶剂法得石油醚部位、乙酸乙酯部位、正丁醇部位和水残留部位。采用小鼠强迫游泳、悬尾模型评价瓜子金醇提物及各萃取部位的抗抑郁作用。结果瓜子金醇提物及正丁醇部位能明显缩短小鼠强迫游泳及悬尾的不动时间。结论瓜子金醇提物及正丁醇部位可以改善小鼠的抑郁状态行为,具有一定的抗抑郁作用。     

越鞠胶囊与贯叶连翘抗抑郁作用的对比研究

目的:研究越鞠胶囊、贯叶连翘的抗抑郁作用。方法:采用小鼠悬尾实验、小鼠强迫游泳实验、利血平诱导小鼠体温下降实验和开场实验研究越鞠胶囊、贯叶连翘的抗抑郁作用。结果:在小鼠悬尾实验中,越鞠胶囊大剂量组、贯叶连翘大、中剂量组能明显缩短模型小鼠的不动时间;在小鼠强迫游泳实验中,越鞠胶囊、贯叶连翘各剂量组能明显缩短模型小鼠的不动时间;在利血平诱导的体温下降实验中,越鞠胶囊大剂量组、贯叶连翘大、中剂量组能明显抑制小鼠体温的下降;实验表明贯叶连翘提取物的作用效价强度要大于越鞠胶囊。结论:越鞠胶囊、贯叶连翘有一定的的抗抑郁作用,贯叶连翘提取物的作用效价强度要大于越鞠胶囊。     

贯叶连翘提取物抗抑郁作用研究

目的：研究贯叶连翘提取物对小鼠的抑制郁作用。方法：选取了强迫小鼠游泳实验，小鼠尾悬吊应激实验，拮抗利血平所致的抑制症状等实验指标。结果：贯叶连翘提取物150mg/kg,300mg/kg显著缩短迫游泳小鼠及尾悬吊小鼠的不动时间；显著拮抗利血平所致的体温下降作用和小鼠眼睑下垂作用。结论：贯叶连翘提取物具有一定的抗抑郁作用。     

石菖蒲对行为绝望动物抑郁模型的抗抑郁作用

目的：对石菖蒲水煎剂的抗抑郁作用进行筛选研究。方法：用小鼠尾悬 挂试验和大鼠强迫游泳试验抑郁模型对石菖蒲水煎剂的抗抑郁作用进行研究。结果：在小鼠尾悬挂试验和大鼠强迫游泳试验中,石菖蒲水煎剂与氟丁汀一样可以使小鼠尾悬挂的失望时间和大鼠强迫游泳的不动时间显著缩短,并呈一定的剂量依赖性,但其药理作用比氟西汀弱。石菖蒲的各剂量组与生理盐水对照组比较,统计学上有非常显著性差异,结论：石菖蒲水煎剂在行为绝望动物抑郁模型上有明显抗抑制作用。     

中药合欢花抗抑郁活性部位的初步筛选研究

目的合欢花抗抑郁作用有效部位的筛选。方法采用小鼠强迫游泳药理实验对合欢花水提物和醇提物及其各萃取部位进行抗抑郁活性筛选。结果合欢花醇提物与水提物的石油醚和醋酸乙酯萃取部位与对照品安拿芬尼类似,均能显著缩短小鼠游泳的不动时间。结论合欢花醇提物与水提物及其石油醚和醋酸乙酯萃取部位对“行为绝望”动物模型有较明显的抗抑郁作用,提示非极性成分及中等极性成分可能为合欢花抗抑郁作用的活性物质。     

百合地黄汤水提物和醇提物的抗抑郁作用对比

目的:对比两种百合地黄汤提取物的抗抑郁作用并探讨其作用机制。方法:以小鼠强迫游泳法、悬尾实验制造抑郁模型,观察百合地黄汤水提物和醇提物对小鼠自主活动、强迫游泳不动时间、悬尾不动时间以及对利血平化小鼠脑单胺递质去甲肾上腺素(NA)、5-羟色胺(5-HT)、多巴胺(DA)的影响。结果:百合地黄汤可明显缩短小鼠强迫游泳不动时间、悬尾不动时间,提高利血平化小鼠NA、DA、5-HT含量,且醇提液效果优于水煎液。结论:百合地黄汤醇提物抗抑郁作用优于水提物,其可能是通过改变中枢单胺递质含量来实现抗抑郁作用的。     

山栀茶水提物和醇提物的抗抑郁作用研究

目的 以药效学方法研究山栀茶的抗抑郁作用.方法 连续21天给予小鼠一系列慢性不可预见性刺激,建立慢性应激模型,同时采用小鼠强迫游泳实验和小鼠悬尾实验作为山栀茶不同溶剂提取物抗抑郁活性的评价指标.结果 与模型组比较,山栀茶的水提物和醇提物的高、低剂量组均能不同程度地缩短小鼠强迫游泳和小鼠悬尾实验的不动时间,具有统计学意义.结论 山栀茶水提物和醇提物具有一定的抗抑郁作用.     

5种川产合欢花抗抑郁作用比较研究

目的比较川产五种合欢花抗抑郁作用差异。方法采用小鼠强迫游泳实验和小鼠尾悬挂实验,观察其抗抑郁作用。结果《中国药典》收载品种合欢花(6 g/kg)能明显缩短两种行为绝望小鼠的不动时间,而其他品种的合欢花均未显著缩短两种行为绝望小鼠的不动时间。结论根据初步研究,合欢花具有抗抑郁活性,其他混淆品种合欢花没有显著的抗抑郁作用。     

复方柴胡口服液抗抑郁作用初步研究

目的:初步探讨复方柴胡口服液抗抑郁作用.方法:采用小鼠悬尾实验及强迫游泳实验等方法观察复方柴胡口服液的抗抑郁作用.结果:在小鼠强迫游泳实验和小鼠悬尾实验中,复方柴胡口服液低剂量(生药4g/kg)能明显缩短两种"行为绝望"模型小鼠的不动时间,中剂量(生药12g/kg)能明显缩短小鼠强迫游泳的不动时间.结论:复方柴胡口服液对"行为绝望"动物模型有抗抑郁作用.     

越菊保和丸的抗抑郁作用研究

目的：研究越菊保和丸抗抑郁作用。方法：选取小鼠强迫游泳实验、小鼠悬尾应激实验、拮抗利血平所致的抑郁症状等实验指标研究越菊保和丸的抗抑郁作用。结果：越菊保和丸使小鼠悬尾不动时间和小鼠强迫游泳不动时间显著缩短（P〈0．05），并有显著拮抗利血平所致的体温下降作用和小鼠眼睑下垂及运动不能的作用（P〈0．05）。结论：越菊保和丸可能有抗抑郁的作用。     

酸枣仁总黄酮抗抑郁作用的实验研究

[目的]研究酸枣仁总黄酮对行为绝望小鼠抑郁模型的影响[。方法]采用小鼠强迫游泳实验和悬尾实验等抑郁模型,小鼠行为绝望的不动时间作为指标,考察酸枣仁总黄酮抗抑郁活性。[结果]酸枣仁总黄酮低、中、高剂量组均能减少小鼠强迫游泳和悬尾不动时间,与空白组比较差异有统计学意义(P<0.05);与阳性药组比较差异有统计学意义(P<0.05)。[结论]酸枣仁总黄酮具有显著的抗小鼠实验性抑郁作用。     

Antidepressant properties of some Hypericum canariense L. and Hypericum glandulosum Ait. extracts in the forced swimming test in mice

It has been shown in a previous work that the methanol extract obtained from the aerial part in blossom of Hypericum canariense L. and Hypericum glandulosum Ait. was active in the tetrabenazine and forced swimming test. In the present study, the central nervous effect of the aqueous, butanol and chloroform fractions obtained from the methanol extracts of these Hypericum species was investigated in mice, particularly in animal models of depression. It was found that the immobility time in the forced swimming test was significantly reduced by the butanol and chloroform fraction of both species assayed, producing no effects or only a slight depression on spontaneous motor activity when assessed in a photocell activity meter. In this regard, the efficacy of the chloroform extract from Hypericum glandulosum Ait. (500 mg/kg p.o.) in the forced swimming test was comparable to that of the tricyclic antidepressant imipramine (50 mg/kg p.o.). In addition, the Hypericum glandulosum chloroform fraction was also effective in antagonizing the ptosis induced by tetrabenazine. Moreover, Hypericum canariense butanol fraction and Hypericum glandulosum chloroform fraction produced a slight but significant hypothermia. Taken together, these data demonstrate that the butanol and chloroform fractions from Hypericum canariense and Hypericum glandulosum possess antidepressant-like effects in mice, providing further support for the traditional use of these plants in the Canary Islands folk medicine against central nervous disorders.     

酸枣仁油对行为绝望小鼠模型的影响

目的:研究酸枣仁油对行为绝望小鼠抑郁模型的影响。方法:选取健康雄性昆明种小鼠,随机分为5组,空白对照组、阳性药组、酸枣仁油50,100,200 mg.kg-1剂量组。连续ig 7 d,每天1次,通过小鼠自主活动实验、小鼠强迫游泳实验和小鼠悬尾实验,观察酸枣仁油对小鼠抑郁作用的影响。结果:酸枣仁油不同剂量组均能减少小鼠强迫游泳和悬尾不动时间,与空白组比较具有显著差异(P<0.05,P<0.01)。结论:酸枣仁油具有一定的抗小鼠实验性抑郁作用。     

Screening for the antidepressant activity of some species of Hypericum from South Brazil

The crude methanol extracts of three species of the genus Hypericum (H. brasiliense, H. caprifoliatum and H. myrianthum) native to South Brazil were evaluated for the antidepressant activity according to the forced swimming test, a classical animal model for antidepressant drug screening. Among the species studied, only H. caprifoliatum showed activity. Thus, this plant was fractionated with solvents in increasing polarity (petroleum ether; petroleum ether: chloroform (1:1); chloroform and methanol). The petroleum ether fraction was the only one which demonstrated antidepressant activity at a dose of 270 mg/kg/day (i.p.). The chemical analyses showed that this fraction is rich in phenolic compounds, mainly of the phloroglucinol type.     

Antidepressant effects of the methanol extract of several Hypericum species from the Canary Islands.

The aim of the present study was to investigate several neuropharmacological effects of the methanol extract of the aerial parts in blossom of Hypericum canariense, H. glandulosum, H. grandifolium and H. reflexum (Hypericaceae). These extracts did not alter significantly the locomotor activity, body temperature or the pentobarbital-induced sleeping time, with the exception of H. reflexum which significantly potentiated pentobarbital-induced sleeping time at both doses assayed (500 and 1000 mg/kg p.o.). Additionally, neither muscle relaxant nor anticholinergic activity was observed. These extracts antagonized the ptosis and/or motor depression induced by tetrabenazine and also shortened the immobility time in the forced swimming test. Moreover, the H. glandulosum and H. grandifolium extracts at 1000 mg/kg p.o. potentiated the head twitches induced by 5-HTP. These observations suggest that the methanol extract of the Hypericum species in doses of 500-1000 mg/kg p.o. possess antidepressant activity in mice, without inducing significant muscle relaxation, anticholinergic and sedative properties.     

Antidepressant effect of Yueju-Wan ethanol extract and its fractions in mice models of despair

AIM OF THE STUDY: Yueju-Wan (YJ), a traditional Chinese medicinal formula, is commonly used for the treatment of depression-related syndromes in China. This study was conducted to evaluate the antidepressant activity of YJ ethanol extract (YJ-E) and its four different fractions, the petroleum ether fraction (YJ-EA), ethyl acetate fraction (YJ-EB), n-butanol fraction (YJ-EC) and final aqueous fraction (YJ-ED). MATERIALS AND METHODS: Two experimental despair animal models: the mice tail suspension test (TST) and the mice forced swimming test (FST) were used to evaluate the antidepressant activity of YJ-E and its fractions. These extracts or fractions were administered orally for 7 days, while the parallel positive control was given at the same time using fluoxetine hydrochloride (FLU) in TST and imipramine hydrochloride (IMI) in FST respectively. RESULTS: YJ-E high dose (YJ-E2), YJ-EA, YJ-EC and the positive control groups could decrease the duration of immobility in the TST and FST and have no significant changes in locomotor activity. YJ-E low dose (YJ-E1), YJ-EB, YJ-ED and the vehicle solvent (VEH) control group have no obvious effect on these same tests. CONCLUSIONS: In these despair animal models, YJ ethanol extract, the petroleum ether fraction and n-butanol fraction show potent antidepressant effects. The petroleum ether fraction and n-butanol fraction appear to be the active fractions of YJ-E.