复方芫花注射液引产效果探讨

 复方芫花注射液由草乌和芫花组成,经药理实验和临床应用表明,草乌对芫花引产有协同作用?该药中芫花?草乌含量分别为0.2,1.2g/ml,引产剂量0.5ml/胎,成功率99.9%,胎死率100%,引产时间26±15h/胎?该药无毒副作用,无引产并发症,且草乌具有解热镇痛作用?     

不同来源金银花类药材抗菌活性研究

目的：对不同来源的金银花类药材的抗菌活性进行研究,比较金银花和山银花的活性,根据研究结果为临床用药和原料生产提供实验依据。方法：测定不同来源对不同菌种MIC50。结果：抗菌活性：山银花〉金银花。     

Effects of Ixeris Chinensis (Thunb.) Nakai Boiling Water Extract on Hepatitis B Viral Activity and Hepatocellular Carcinoma

Background

Hepatitis B virus (HBV) infection and hepatocellular carcinoma are major diseases that affect the Taiwanese population. Therefore, the development of an alternative herbal medicine that can effectively treat these diseases is a research target. In this study, we tested Ixeris Chinensis (Thunb.) Nakai boiling water extract (ICTN BWE) in vitro and analysed its effects on the HBV and liver cancer.

Materials and Methods

We used a human liver cancer cell line (Hep3B, a cell line that continuously secretes HBV particles into a medium) as an experimental model for the screening of various ICTN BWE concentrations and their effects on the HBV in vitro.

Results

Our results showed that 75 µg/mL ICTN BWE downregulated the relative expression of the hepatitis B virus surface antigens (HBsAg) to 77.1%. Using the human liver cancer cell lines HuH-7 and HepG2, and 3-(4,5-dimethylthiazol-zyl)-2,5-diphenyl tetrazolium bromide (MTT) and tumour clonogenic assays, we then showed that ICTN BWE inhibits hepatocellular carcinoma growth.

Conclusion

Fluorescent microscopy of DAPI(4′,6-Diamidino-2-phenylindole)-stained nuclei and DNA fragmentation assays confirmed the inhibitory effects of ICTN BWE on liver tumour cell growth through induction of apoptosis.     

五味子醋制前后指纹图谱的分析比较

目的: 建立五味子指纹图谱测定方法,分析比较五味子醋制前后物质基础的变化。 方法: 采用HPLC,以乙腈-15 mmol·L^-1磷酸二氢钾溶液(pH 2.0)为流动相,梯度洗脱,检测波长210,254 nm,流速1.0 mL·min^-1,柱温35 ℃,分别测定生、醋五味子指纹图谱。 结果: 五味子醋制前后指纹图谱有明显的差异,其中以5-羟甲基糠醛含量变化最显著。 结论: 建立的方法可以较好体现出五味子醋制前后物质基础的差异,为五味子饮片的质量评价标准提供了科学依据,也为进一步揭示五味子炮制原理的科学内涵奠定了基础。     

Combined antihypertensive effect of luteolin and buddleoside enriched extracts in spontaneously hypertensive rats

Ethnopharmacological relevance

Flos Chrysanthemi is used in a variety of diseases in traditional Chinese medicine including hypertension, and the total flavonoids (rich in luteolin (LUT) and buddleoside (BUD)) of Flos Chrysanthemi is known to modulate vascular functions and reduce the blood pressure. However, the active flavonoids and their synergistic effects on anti-hypertension are still unclear. To investigate the combined anti-hypertension effects of LUT and BUD enriched extracts on spontaneously hypertensive rats (SHR), as well as the anti-hypertensive mechanism of LUT&BUD mixture.

Materials and methods

CODA Mouse & Rat Tail-Cuff Blood Pressure System was used to measure the systolic blood pressure (SBP) and diastolic blood pressure (DBP) of SHR after treated with extracts contains with LUT and/or BUD. The expressions of Ang II, PRA, ALD, ET, PGI₂ and TXB₂ were investigated by ELASA. Serum NO concentration was measured by the method of Nitric acid reductase.

Results

A single administration of LUT, BUD, or LUT:BUD=1:1 significantly reduced SBP by about 3.35 mmHg, 4.39 mmHg and 15.42 mmHg, respectively. Chronic administration of LBM (at 60 mg/kg; p.o. for 30 days) reduced both SBP and DBP by 4.04% and 5.24% of the vehicle group, respectively. Oral administration of LBM at 60 mg/kg inhibited the serum levels of ANG, ALD and ET, but increased serum NO concentration.

Conclusion

This study shows the synergistic anti-hypertension effects of LUT and BUD in SHR. The effects of LBM on blood pressure are associated with RAAS and endothelial system. Thus, our experiments suggest that the combination of luteolin and buddleoside from Flos Chrysanthemi are potentially useful for the therapeutic treatments for hypertension.     

丁香有效期的研究*

目的:进行中药(中药材及中药饮片)有效期的研究。方法:选用易走油、气味易散失的丁香,通过经典恒温和留样观察试验,采用HPLC测定丁香酚的含量,推导出该药有效成分含量变化规律。结果:经典恒温试验测得的丁香酚含量变化符合一级反应规律。在20℃贮存,丁香酚含量变化的速度常数K20℃=1.557×10-5,该批丁香的有效期为900d。经典恒温与留样观察结果基本一致。结论:用经典恒温试验预测中药有效期的方法可行,得出的有效期结论可靠。     

辛夷挥发油的提取工艺研究

目的:考察辛夷挥发油的最佳提取工艺。方法:采用水蒸气蒸馏法提取辛夷挥发油,以收油率作为评价提取工艺的指标。结果:挥发油的最佳提取工艺为:将药材粉碎成中粉(65目)、加12倍量水、提油6h。结论:所选提取工艺收油率高,节约成本。     

五倍子乙醇提取物对表皮葡萄球菌的体外抗菌活性研究

目的　观察五倍子乙醇提取物对表皮葡萄球菌的体外抗菌活性 ,为临床应用和新药研究提供依据。方法　采用新的中药抑菌实验方法 ,对五倍子提取物进行 2 36株表皮葡萄球菌的最低抑菌浓度测定 ,并与五倍子水煎剂进行抑菌效果对比。结果　五倍子提取物对 2 36株表皮葡萄球菌中的 12 7株耐甲氧西林表皮葡萄球菌 (methicillin -resistantstaphylococcusepider midis ,MRSE)和 10 9株甲氧西林敏感的表皮葡萄球菌 (methicillin -sensitivestaphylococcusepidermidis,MSSE)的MIC90 分别为 1.15和 0 .2 88mg·ml-1。结论　五倍子乙醇提取物对 2 36株表皮葡萄球菌具有较强的抑菌作用。     

盐黄柏炮制历史沿革和机制的研究进展及其质量标志物（QMarker）预测分析

盐黄柏是黄柏Phellodendri Chinensis Cortex经盐水加工后的炮制品,具有滋阴降火的功效,在我国具有广泛且悠久的应用历史。通过查阅历代本草典籍及现代研究文献报道,梳理盐黄柏的历史沿革,并对其现代炮制机制的研究进展进行归纳。从药性、盐制后化学成分与功效变化、药动学及体内过程相关性等方面对盐黄柏的质量标志物(quality marker,Q-Marker)进行预测分析,初步确定小檗碱、小檗红碱、黄柏碱等为其可能的Q-Marker,以期为盐黄柏的质量评价、临床有效应用及相关基础研究提供科学依据。     

不同产地金银花质量评价

目的:通过对14个不同产地金银花药材中指标成分绿原酸、木犀草苷、总酚酸、总黄酮的含量进行测定,找出4个成分之间的相关性,为合理评价金银花药材质量提供参考。方法:采用HPLC和UV法测定金银花中绿原酸、木犀草苷、总酚酸和总黄酮的含量;采用相关程度分析方法对4种成分进行相关性分析。结果:以4种成分为综合考察指标,其中山东临沂产金银花药材中绿原酸、木犀草苷、总酚酸、总黄酮含量较高;通过相关性评价,判定金银花中绿原酸与总酚酸呈高度相关性,木犀草苷与总黄酮呈中度相关,绿原酸与木犀草苷呈中度相关,总酚酸与总黄酮呈中度相关。结论:通过对14个不同产地金银花药材指标成分评价及相关分析,为金银花药材质量的评价及合理利用提供实验数据。