Anti-Tumor Activity of Four Ayurvedic Herbs in Dalton Lymphoma Ascites Bearing Mice and Their Short-Term In Vitro Cytotoxicity on DLA-Cell-Line

The anti-tumor activity and chemopreventive potential of four Ayurvedic herbs viz. Curcuma longa L., Ocimum sanctum L., Tinospora cordifolia (Wild) Miers ex Hook.f & Thomas and Zizyphus mauritiana Lam. were evaluated using Dalton Lymphoma ascites (DLA) tumor model in Swiss Albino mice. The outcome was assessed using survival time, peritoneal ascitic fluid (Tumor volume) and hematological indices as parameters. Animals were divided into five groups (n = 6) viz. one DLA control and four Herb + DLA treated groups. All the four herb + DLA groups were pre-treated with respective herbs for 7 days and hematological indices were measured for entire five groups. On day-8 animals were inoculated with 1×10⁶ DLA cells i.p., and Herb + DLA groups were continued with oral herbal treatment for 21-days. Hematological parameters and tumor volume were assessed to find the effects of herbs. Short term in vitro cytotoxicity was determined by Trypan Blue exclusion method and LDH leakage assay using different concentrations of herbal extracts and 5-FU as a positive control and IC₅₀ for each herbal extract and 5-FU were determined. Oral administration of crude herb increased the survival time and decreased the peritoneal ascitic fluid content significantly. Hb, RBCs and total WBC which were altered by DLA inoculation were restored significantly by all the herbs except O. sanctum. All the four herbs showed in vitro cytotoxic activity against DLA cell-line. Moreover inter group comparison of all the four herbs for anti-tumor activity showed efficacy in the following order- T. cordifolia > Z. mauritiana ≥ C. longa > O. sanctum respectively.     

4种姜黄属药材挥发油中莪术醇含量比较

目的 建立准确测定姜黄属4种中药材挥发油中莪术醇含量。方法 以高效毛细管柱序升温气相色谱法测定莪术醇的含量。结果 本法能准确测定莪术醇的含量,回收率为101．4％,RSD为0．4％,还测定了4种姜黄属药物（温郁金、姜黄,桂莪术,蓬莪术）中莪术醇的含量,发现4种药材中莪中醇的含量差异显著。结论 为姜黄属药材质量的分析控制提供可行的含量测定方法。     

国产姜黄属药用植物RAPD分析与分类鉴定

运用ＲＡＰＤ技术刻划了国产姜黄属药用植物的遗传背景差异,并结合经典分类和异地栽培观察和聚类分析,初步澄清了姜黄属植物的一些分类学争议,从ＤＮＡ分子水平上为姜黄属植物分类与中药鉴定提供了参考依据。     

种姜和播种方式对黄丝郁金块根产量的影响

目的:研究种姜和播种方式对植株生长及郁金块根产量影响,为其规范化种植提供科学依据。方法:田间采用二因素裂区设计,齐苗后调查出苗数,定期调查株高,收获时测定小区产量,并对试验结果进行方差分析。结果:种姜对出苗数、株高和郁金块根产量都存在显著影响,不同播种方式对郁金块根产量无显著影响,两者间存在显著的互作效应。结论:窝播配合未发芽的具3～4节的子姜或母姜作种时,郁金块根产量最高。     

莪术油注射液对小鼠移植性S180肉瘤血管形成的抑制作用

目的 探讨莪术油对肿瘤血管形成抑制作用。方法 通过建立动物肿瘤模型，运用莪术油予以实验治疗，结合免疫组化，检测其抑瘤率和肿瘤内血管密度，以及瘤体VEGF和bFGF表达的改变：结果 莪术油具有明显的抑制S180肉瘤作用，其大剂量组抑瘤率达46．68％。小、中、大剂量实验组的S180瘤体内微血管密度均明显低于对照组；免疫组化显示莪术油大剂量组均可抑制S180瘤体内VEGF，bFGF的表达：结论 莪术油对小鼠S180肉瘤有一定的抑制作用，对肿瘤血管形成均有明显抑制作用，降低VEGF、bFGF的表达可能是其抑制肿瘤血管形成的主要机制之一。     

超临界CO2萃取测定姜黄中姜黄素的实验研究

目的 :筛选超临界CO₂ 萃取姜黄中姜黄素的最佳工艺条件。方法 :采用正交试验优化超临界流体萃取姜黄素的工艺条件 ,采用HPLC法测定姜黄素含量。结果 :超临界CO₂ 萃取姜黄素的最佳条件 :萃取压力 25MPa ,萃取温度 55℃ ,采用无水乙醇作为夹带剂 (与超临界CO₂ 流体同步泵入萃取器中 ) ,用量为 30 % ,静态萃取 4h ,动态萃取 5h ,CO₂ 流量 3.5L·min^-1。结论 :超临界CO₂ 萃取姜黄素具有操作简便、无有机溶剂残留的优点 ,其方法可靠 ,切实可行。     

川芎、高良姜等挥发油的水蒸汽蒸馏法和超临界流体萃取法比较研究

目的:确定川芎、高良姜、片姜黄和羌活的挥发油提取最佳条件.方法:用水蒸汽蒸馏法和超临界流体萃取的方法提取挥发油.结果:(1)水蒸汽蒸馏法提取挥发油的最佳条件确定为:川芎:浸泡时间12h,粉末粒度细,提取时间3h,加水比1:10;高良姜:浸泡时间0h,粉末粒度粗,提取时间3h,加水比1:10;片姜黄:浸泡时间24h,粉末粒度中,提取时间1.5h,加水比1:5;羌活:浸泡时间0h,粉末粒度粗,提取时间3h,加水比1:10.(2)超临界流体萃取法提取挥发油的最佳条件确定为:川芎:温度为60℃,粉末粒度细,压力25MPa,提取时间1.5h;高良姜:温度为60℃,粉末粒度中,压力25MPa,提取时间0.5h;片姜黄:温度为60℃,粉末粒度细,压力20MPa,时间1h;羌活:温度为60℃,粉末粒度细,压力25MPa,提取时间1h.结论:超临界流体萃取法要优于水蒸汽蒸馏法.     

莪术组分涂层支架预防猪冠状动脉再狭窄的研究

目的通过中华实验用小型猪冠状动脉再狭窄模型,观察中药莪术组分涂层支架抑制内膜增殖的有效性。方法将18只小型猪随机分为莪术组分涂层支架组(ZES组)、雷帕霉素涂层支架组(SES组)及金属裸支架组(BMS组),每组6只,分别在左前降支、左回旋支及右冠状动脉置入同一种支架各1枚。术后30 d冠状动脉造影后将猪处死,观察支架血管段的病理形态及影像学变化。结果 30 d时,与BMS组比较,ZES组和SES组平均管腔直径和平均管腔面积均明显增大(P<0.05),直径狭窄率和面积狭窄率明显减小(P<0.05);与SES组比较,ZES组和BMS组炎症积分明显降低,内皮化积分明显升高(P<0.05);3组损伤积分比较,差异无统计学意义(P>0.05);光学相干断层扫描及扫描电镜观察,SES支架组30 d时可见部分支架节段内皮化不全及炎性细胞浸润。结论 ZES支架可有效地抑制血管内膜增殖,具有良好的生物相容性。     

天然姜黄素类化合物抗人类呼吸道合胞病毒研究

目的：：研究姜黄中天然姜黄素类化合物体外抗人类呼吸道合胞病毒( human respiratory syncytial virus, RSV)的活性。方法：采用细胞病变抑制法检测姜黄的95%乙醇提取物的乙酸乙酯部位与天然姜黄素类化合物体外抗RSV的活性。结果：双去甲氧基姜黄素有抗RSV病毒的活性,对RSV的半数抑制浓度(IC50)为12.5μg·ml-1,治疗指数(SI)为1。结论：姜黄中的天然姜黄素类化合物具有抗RSV的活性。     

An Investigation of the Effects of Curcumin on Anxiety and Depression in Obese Individuals: A Randomized Controlled Trial

Objective: To investigate the effectiveness of curcumin, a natural polyphenolic compound with antioxidant and anti-inflammatory activities, on the frequency of symptoms of anxiety and depression in obese individuals. Methods: In this double blind, cross-over trial, 30 obese subjects were randomized to receive either curcumin (1 g/day) or placebo for a period of 30 days. Following a wash-out interval of 2 weeks, each subject was crossed over to the alternative regimen for a further 30 days. Severity of anxiety and depression was assessed at baseline and at weeks 4, 6 and 10 of the trial using the Beck Anxiety Inventory (BAI) and Beck Depression Inventory (BDI) scales, respectively. Results: Mean BAI score was found to be significantly reduced following curcumin therapy (P=0.03). However, curcumin supplementation did not exert any significant impact on BDI scores (P=0.7). Conclusion: Curcumin has a potential anti-anxiety effect in individuals with obesity.