Xiao-Chai-Hu Tang in Treating Model Mice With D-Galactosamine-Induced Liver Injury

This study explored the effects of a classical Chinese medicine formula- Xiao-Chai-Hu Tang(XCHT) on the model mice with D-galactosamine -induced liver injury. Sixty male imprinting control region (ICR) mice were used in the present study, and they were separated randomly into 6 groups: a normal control group (Group A, n=10), a model control (Group B, n=10), a positive control (Group C, n=10), a low dose of XCHT group (Group D, n=10), a medium dose of XCHT group (Group E, n=10), and a high dose of XCHT group (Group F, n=10). ELISA was used to detect the IL-6 and TNF-α levels in the serum. Real-time PCR was performed to assess the expression of FasmRNA, Fas-LmRNA, Bcl-2mRNA of the liver tissues. Western blotting was used to detect the Bax protein expression of the liver tissues. The serum IL-6 and TNF-α levels of Group B were significantly higher than the other groups (P<0.05). The expression of Fas mRNA, Fas-LmRNA, and Bax protein of the liver tissues of Group B were significantly higher than those of the other groups (P<0.05). The expression of Bcl-2 mRNA of the liver tissues of Group B was significantly lower than other groups (P<0.05). Both of XCHT and biphenyl dicarboxylate significantly decreased the serum IL-6 and TNF-α levels and FasmRNA, FasLmRNA, Bax protein expression and increased the Bcl-2 mRNA expression of the liver tissues of model mice (P<0.05). It may be through decreasing the serum IL-6 and TNF-α levels and FasmRNA, FasLmRNA, Bax protein expression and increasing the Bcl-2 mRNA expression of the liver tissues that XCHT significantly relieved the D-galactosamine -induced liver injury.     

柴芍六君汤干预慢性乙型肝炎患者YMDD变异的临床研究

目的 观察柴芍六君汤、拉米夫定联合治疗慢性乙型肝炎患者YMDD变异的情况.方法 采用非随机同期对照试验,将405例慢性乙型肝炎患者分为治疗组和对照组,治疗组220例,对照组185例,对照组给予拉米夫定100 mg,每天1次,口服,治疗18个月.治疗组给予柴胡六君汤每日1剂,同时口服拉米夫定100 mg,每天1次,治疗18个月.观察患者临床症状、ALT复常率、HBeAg阴转率,HBeAg血清转换率,HBV DNA阴转率、治疗12个月及18个月的YMDD变异率.率的比较采用χ2检验,均数比较采用t检验或U检验,方差不齐者用秩和检验. 结果治疗3.6、12.18个月时,ALT复常率治疗组分别为69.5%、85.9%、90.5%,82.7%,对照组分别为50.3%、65.4%、78.4%,69.7%,两组比较,χ2值分别为15.70、23.50、11.50.9.50.JD值均<0.01,差异均有统计学意义.治疗组12、18个月HBV DNA阴转率、HBeAg阴转率、HBeAg血清转换率、YMDD变异率分别为77.7%、57.7%、25.5%、6.8%和86.8%、74.1%、33.2%、8.6%,对照组分别为54.6%、36.8%,13.O%,14.6%和69.2%、37.3%、19.5%、20.5%,两组比较,χ2值分别为24.38、17.70、9.88、6.54和18.67、55.60、9.62,11.78,P<0.01或P<0.05,差异有统计学意义. 结论柴芍六君汤联合拉米夫定治疗慢性乙型肝炎,能有效地改善肝功能,提高拉米夫定抑制HBV复制的作用,减少YMDD变异的发生.     

枳实薤白桂枝颗粒对异丙肾上腺素所致心肌缺血大鼠血液流变学和抗氧化作用的影响

目的研究枳实薤白桂枝颗粒对心肌缺血模型大鼠血流变指标和抗氧化作用的影响,为新药开发和临床应用提供药效学依据。方法经标准II导联心电图筛选合格的雄性SD大鼠,随机分成正常组、模型组、枳实薤白桂枝颗粒高剂量组、中剂量组和低剂量组、阳性对照组。各组先连续7天灌胃给予相应药物,从第5天开始,除正常组外其余各组同时腹腔注射异丙肾上腺素(5 mg/kg),连续3 d,制备心肌缺血模型。检测大鼠血液流变学指标变化,分光光度法检测血中MDA、SOD、GSHPx和NO水平。结果与正常组相比,模型组大鼠的全血粘度、血浆粘度和纤维蛋白原水平明显升高,MDA和GSH-Px水平显著升高,SOD、NO水平明显降低,差异有统计学意义(P<0.05);与模型组相比,各治疗组上述指标均有不同程度改善,差异有统计学意义(P<0.05)。结论枳实薤白桂枝颗粒可能通过清除氧自由基、提高机体抗氧化能力,从而改善心肌缺血大鼠血液粘浓凝聚的状态,起到保护心肌的目的 。     

青银汤解热、镇痛作用的实验研究

目的:研究青银汤的解热、镇痛作用.方法:通过干酵母所致大鼠发热实验观察其解热作用,通过热板法和醋酸扭体法观察其镇痛作用.结果:解热实验显示,青银汤中、高剂量组能显著抑制酵母诱导大鼠致热反应;镇痛实验显示,青银汤中、高剂量组能提高小鼠的痛阈值,有效地减少醋酸所致小鼠的扭体次数.结论:青银汤具有良好解热、镇痛作用.     

常克教授运用双黄汤治疗小儿湿疹气血不足型经验

常克教授认为小儿湿疹的病因与心肺密切相关,气血不足者多责之于心肺不足,气血亏虚。并根据其多年临床经验自创双黄汤,功在益气补肺,养血祛风,扶正固本以祛湿。临床上以此方为基础辨证加减治疗小儿湿疹气血不足型,临床效果显著,为小儿湿疹的治疗提供了新的思路。附典型案例1则,以资验证。     

Pharmacokinetics of different dosage of astragalus membranaceus of buyang huanwu decoction in rats with cerebral ischemic injury by microdialysis combined with LC/MS

To investigate the pharmacokinetics of effective components of Bu Yang Huang Wu Decoction (BYHWD) with different dosages of Astragalus (Yiqi groups and Huoxue groups ) applicating in rats with middle cerebral artery occlusion (MCAO). Replicating the animal model of cerebral ischemia-reperfusion in rats, establishing the liquid-mass spectrometry method for the determination of BYHWD and researching the pharmacokinetics of effective components of yiqi groups of BYHWD with different dosages of astragalus (3.09, 6.17, 12.34 g/Kg) and Huoxue goups (2.32 g/Kg) when applicated seperately in the rats suffering from cerebral ischemia reperfusion injury after femoral vein administration. The pharmacokinetics of formononetin and paeoniflorin in the different dosage groups of BYHWD met the one-compartment model, and the t_1/2 of formononetin and paeoniflorin in the low-dose Yiqi and Huoxue groups were (88.43±3.82, 69.18±0.11) min, MRT were (138.56±4.83, 113.62±2.42) min, and AUC_0–t were (28 488.35±4800.32, 140 614.80±23 954.05) ng/mL·min; The t_1/2 of formononetin and paeoniflorin in the middle-dose Yiqi group and Huoxue group were (82.16±1.78, 67.08±3.69) min, and MRT were (127.95±2.70, 116.58±4.13), AUC_0–t were (48 619.25±6745.75, 159 026.00±15 003.33) ng/mL·min; The t_1/2 of formononetin and paeoniflorin in the high-dose Yiqi and Huoxue groups were (80.29±1.12, 69.69±0.87) min, and MRT was (128.79±1.46, 118.78±4.56) min, AUC_0–t were (109 942.90±13 101.83, 189 417.90±22 311.00) ng/mL·min. The concentration rate of formononetin t_{1/2 brain} was decreased with increase of Astragalus dose. However, no significant difference between these two variables was found during experiments. Furthermore, the experiments showed that the increasing dose of astragalus would affect the pharmacokinetic behavior of paeoniflorin in the Huoxue groups. More specifically, the result showed that paeoniflorin can be metabolized more slowly in the body when applicated in high dose of the jaundice administration groups . In this way, the effect of paeoniflorin can be lasted for longer time in the body and brain.     

四君子汤对电离辐射所致小鼠免疫损伤和骨髓损伤的防治作用

目的 观察四君子汤对电离辐射所致免疫系统损伤和骨髓损伤的防治作用,探讨其可能的机制。方法 6~8周的BALB/c小鼠80只,用随机数字表法分为阴性对照组、照射对照组,以及四君子汤的0.75、2.25和6.75 g/kg 3个剂量组。3.5 Gy ⁶⁰Co γ射线全身单次照射造成小鼠电离辐射损伤模型。照射后3和7 d,观察不同剂量的四君子汤提取物对小鼠脾脏系数、脾细胞凋亡率和骨髓嗜多染红细胞微核率的影响。结果 四君子汤各剂量组均可有效抑制辐射所致的照射后7 d脾脏细胞的辐射损伤,促进脾脏细胞增殖,使脾脏系数升高(t=-3.282,-6.386,-3.901,P<0.05);其中,2.25 g/kg的四君子汤可减少脾细胞照后3 d的早期凋亡(t=4.143,P<0.05)和照后7 d的晚期凋亡(t=2.413,P<0.05);四君子汤可剂量依赖性降低照射后3和7 d的骨髓嗜多染红细胞微核率(t=2.914,3.285,8.000,P<0.05)。结论 四君子汤可通过减少脾细胞凋亡和损伤、降低嗜多染红细胞微核率,从而缓解电离辐射所致损伤,促进小鼠免疫和骨髓造血功能恢复。     

杨少山运用千金苇茎汤临证思路与验案3则

国家级名老中医杨少山对千金苇茎汤的运用有自己独特的见解,不囿于古法,除用于治疗肺痛外,亦用于治疗其他肺系疾病或肠道疾病。     

霍山石斛对高脂诱导的LDLR基因敲除小鼠动脉粥样硬化和血管钙化的影响

目的 研究霍山石斛(DH)对高脂食物诱导的雄性低密度脂蛋白受体基因敲除(LDLR－/－)小鼠动脉粥样硬化(As)和血管钙化的影响,并初步探讨其作用机制。方法 LDLR－/－小鼠随机分为对照组和霍山石斛组(DH组)。喂养18周后对小鼠处以安乐死,收集血清、主动脉、肝脏等。分析血清中谷丙转氨酶(ALT)、谷草转氨酶(AST)、碱性磷酸酶(ALP)、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDLC)和低密度脂蛋白胆固醇(LDLC)的水平;对全主动脉及其根部切片进行油红O染色,检测动脉粥样硬化斑块面积;主动脉根部切片分别做天狼猩红和茜素红S染色,分析斑块稳定性和血管钙化程度;再对肝脏及其冰冻切片进行检测,分析其脂质积累情况。结果 霍山石斛喂食LDLR－/－小鼠18周后,与对照组比较,DH组小鼠血清TG水平下降(P＜0.05),但不影响血清中转氨酶及其他脂质水平。与对照组比较,DH组小鼠全主动脉及主动脉根部的粥样硬化斑块面积均减少约20%(P＜0.05);斑块损伤区域的胶原纤维含量增加约70%(P＜0.05),从而提高斑块的稳定性,且斑块中坏死核心的发生发展也受到明显抑制;对主动脉根部切片的茜素红S染色发现,对照组主动脉根部钙化面积占比1.34%,而DH组主动脉根部钙化面积占比为0.88%,减少了约34%(P＜0.01)。结论 霍山石斛可以抑制动脉粥样硬化和血管钙化的发生发展。