苏格木勒-3汤水提物对小鼠镇静、催眠及失眠模型大鼠催眠的作用机制研究
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篇名: 苏格木勒-3汤水提物对小鼠镇静、催眠及失眠模型大鼠催眠的作用机制研究
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摘要: 目的:研究苏格木勒-3汤水提物对小鼠镇静、催眠及对失眠模型大鼠催眠的作用机制。方法:将小鼠随机分为空白组(生理盐水,2 mL/100 g)、阳性对照组(阿普唑仑,0.15 mg/kg)和苏格木勒-3汤水提物高、低剂量组(90.0、45.0 mg/kg,以生药量计,下同),每组12只,各组小鼠每天灌胃给药1次,连续给药5 d,观察小鼠自主活动(活动时间和站立次数)变化及在戊巴比妥钠催眠剂量下(50 mg/kg)对小鼠入睡潜伏期和睡眠持续时间的影响。采用腹腔注射氯苯丙氨酸建立大鼠失眠模型,将成模大鼠随机分为模型组(生理盐水,2 mL/100 g)、阳性对照组(阿普唑仑,0.09 mg/kg)和苏格木勒-3汤水提物高、低剂量组(108.0、54.0 mg/kg),每组10只,并另取10只正常大鼠作为空白组(生理盐水,2 mL/100 g),各组大鼠每天灌胃给药1次,连续给药7 d后处死;采用酶联免疫吸附法检测各组大鼠脑组织内5-羟色胺(5-HT)、γ-氨基丁酸(GABA)、白细胞介素1β(IL-1β)、超氧化物歧化酶(SOD)、丙二醛(MDA)的含量。结果:在镇静、催眠实验中,与空白组比较,其余各组小鼠活动时间和站立次数均显著减少(P<0.05或P<0.01);苏格木勒-3汤水提物高剂量组和阳性对照组小鼠入睡潜伏期均显著缩短(P<0.05或P<0.01),苏格木勒-3汤水提物高剂量组小鼠睡眠持续时间显著延长(P<0.05)。在催眠作用机制实验中,与空白组比较,模型组大鼠脑组织内5-HT及GABA、SOD含量显著降低(P<0.05),IL-1β、MDA含量显著增加(P<0.05)。与模型组比较,阳性对照组和苏格木勒-3汤水提物高、低剂量组大鼠脑组织内5-HT含量显著增加(P<0.05或P<0.01);苏格木勒-3汤水提物高剂量组、阳性对照组大鼠脑组织内GABA、SOD含量显著增加(P<0.05或P<0.01),苏格木勒-3汤水提物高、低剂量组IL-1β含量显著降低(P<0.05),其余指标差异均无统计学意义(P>0.05)。结论:苏格木勒-3汤水提物具有较好的镇静、催眠作用,其催眠作用机制可能与中枢神经递质5-HT、GABA及细胞因子IL-1β水平有关。
ABSTRACT: OBJECTIVE: To study the hypnotic and sedative effects of water extract of Sugmel-3 decoction on mice and its effects on insomnia of insomnia model rats. METHODS: The mice were randomly divided into blank group (normal saline, 2    mL/100 g), positive control group (alprazolam, 0.15 mg/kg), water extract of Sugmel-3 decoction high-dose and low-dose groups (90.0, 45.0 mg/kg, calculated by crude drug, similarly hereinafter), with 12 mice in each group. Each group was given relevant medicine intragastrically once a day, for consecutive 5 days. The change of spontaneous activity (activity time and the number of standing), the effects of hypnotic dose of pentobarbital sodium (50 mg/kg) on latency and duration of sleep were observed in mice. Insomnia rat model was induced by intraperitoneal injection of para-chlorophenylalanine. Model rats were randomly divided into model group (normal saline, 2 mL/100 g), positive control group (alprazolam, 0.09 mg/kg), water extract of Sugmel-3 decoction high-dose and low-dose groups (108.0, 54.0 mg/kg), with 10 rats in each group. Other 10 normal rats were included in blank group (normal saline, 2 mL/100 g). Other groups were given relevant medicine intragastrically once a day, and then sacrificed after consecutive administration of 7 d. ELISA assay was used to detect the contents of 5-HT, GABA, IL-1β, SOD and MDA in cerebral tissue of rats. RESULTS: In the experiment of sedation and hypnosis, compared with blank group, the activity time and the number of standings of mice in other groups were decreased significantly (P<0.05 or P<0.01), sleep latency of mice was shortened significantly in water extract of Sugmel-3 decoction high-dosage group and positive control group (P<0.05 or P<0.01). The sleep duration of mice was prolonged significantly in water extract high-dose group of Sugmel-3 decoction (P<0.05). In the experiment of hypnotic mechanism, compared with blank group, the contents of 5-HT, GABA and SOD in cerebral tissue of rats were decreased significantly in model group (P<0.05), the contents of IL-1β and MDA were increased significantly (P<0.05). Compared with model group, the content of 5-HT of rats was increased significantly in positive control group, water extract of Sugmel-3 decoction high-dose and low-dose group (P<0.05 or P<0.01). The contents of GABA and SOD in cerebral tissue of rats were increased significantly in water extract of Sugmel-3 decoction high-dose group and positive control group (P<0.05 or P<0.01). The content of IL-1β of rats in water extract of Sugmel-3 decoction high-dose and low-dose group were decreased significantly (P<0.05), the others indexes differences were not statistically significant (P>0.05). CONCLUSIONS: The water extract of Sugmel-3 decoction has good sedative and hypnotic effects, and its hypnotic mechanism may be related to the regulation of level of 5-HT and GABA in central neurotransmitters and the cytokine IL-1β.
期刊: 2018年第29卷第23期
作者: 韩金美,王树梅,萨础拉
AUTHORS: HAN Jinmei,WANG Shumei,Sachula
关键字: 苏格木勒-3汤;水提物;失眠;镇静;催眠;大鼠;小鼠
KEYWORDS: Sugmel-3 decoction; Water extract; Insomnia; Sedatiion; Hypnosis; Rats; Mice
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