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1.
目的评价和比较马钱子碱及其脂质体对移植性肿瘤模型荷瘤小鼠的肿瘤抑制作用和生存时间的影响。方法用ICR小鼠接种S180、EAC腹水瘤、肝癌Heps瘤株造成相应的移植性荷瘤小鼠模型,考察马钱子碱及其脂质体对实体瘤模型(S180和Heps)小鼠的抑瘤率和对腹水瘤模型(EAC和Heps)小鼠生命延长率的作用以研究两者的抗肿瘤活性。结果马钱子碱及其脂质体能有效抑制实体瘤模型荷瘤小鼠体内肿瘤生长,1.61、3.23、6.46mg/(kg·d)马钱子碱对Heps小鼠的抑瘤率分别为35.05%、43.70%和46.09%,而1.61、3.23mg/(kg·d)马钱子碱脂质体的抑瘤率分别为45.41%和58.19%;1.61、3.23、6.46mg/(kg·d)马钱子碱对S180小鼠的抑瘤率分别为37.59%、36.13%和38.87%,而1.61和3.23mg/(kg·d)马钱子碱脂质体的抑瘤率分别为53.00%和48.37%,明显高于马钱子碱;但两者对腹水瘤模型(EAC和Heps)荷瘤小鼠的生存时间均无延长作用。结论马钱子碱及其脂质体有显著的抑制荷瘤小鼠肿瘤生长作用,马钱子碱脂质体抗肿瘤作用明显强于马钱子碱。  相似文献   

2.
冬凌草甲素自微乳对小鼠移植性肿瘤H22的抑制作用   总被引:2,自引:0,他引:2  
目的研究冬凌草甲素自微乳对H22移植性肿瘤模型小鼠的肿瘤抑制作用。方法采用昆明小鼠接种肝癌H22瘤株造成相应的移植性荷瘤小鼠模型,以实体瘤模型小鼠的瘤重、抑瘤率观察冬凌草甲素自微乳对小鼠移植性肿瘤H22的抑制作用;以胸腺指数、脾脏指数为指标观察冬凌草甲素自微乳对免疫器官的影响;以小鼠平均生存时间观察冬凌草甲素自微乳对腹水瘤模型小鼠的生命延长作用。结果冬凌草甲素自微乳能有效地抑制实体瘤模型荷瘤小鼠体内肿瘤的生长,低、中、高(67,100,150 mg.kg-1)3个剂量组的抑瘤率分别为:43.94%、54.65%、59.57%;冬凌草甲素自微乳给药组小鼠胸腺指数和脾脏指数与荷瘤对照组相比,无显著性差异;中剂量(100 mg.kg-1)冬凌草甲素自微乳对腹水瘤肿瘤模型小鼠的生存时间具有延长作用,与荷瘤对照组相比具显著性差异。结论冬凌草甲素自微乳对荷瘤小鼠肿瘤生长具有一定的抑制作用,抑制作用强于冬凌草甲素,并有剂量依赖性。  相似文献   

3.
白藜芦醇固体脂质纳米粒抑制小鼠移植性肿瘤H22的研究   总被引:4,自引:4,他引:0  
目的:研究白藜芦醇固体脂质纳米粒(resveratrol-solid lipid nanopartieles,Res-SLN)对H22移植性肿瘤模型小鼠的肿瘤抑制作用.方法:将昆明种小鼠接种肝癌H22瘤株造成相应的移植性荷瘤小鼠模型后,随机分为荷瘤模型组、环磷酰胺(CTX)阳性药对照组(25 mg·kg-1),Res-SLN低、中、高(35,70,105 mg·kg-1)3个剂量组、白藜芦醇(resveratrol,Res)混悬液组(105 mg·kg-1)、空白辅料组,以实体瘤模型小鼠的瘤重、抑瘤率观察Res-SLN对小鼠移植性肿瘤H22的抑制作用;以胸腺指数、脾脏指数为指标观察Res-SLN对免疫器官的影响;以小鼠平均生存时间观察Res-SLN对腹水瘤模型小鼠的生命延长作用.结果:Res-SLN能有效地抑制实体瘤模型荷瘤小鼠体内肿瘤的生长,低、中、高3个剂量组的抑瘤率分别为61.95%,72.39%,85.52%;Res-SLN给药组小鼠胸腺指数和脾脏指数与荷瘤对照组相比,无显著性差异;Res-SLN中、高剂量组对腹水瘤肿瘤模型小鼠的生存时间具有延长作用,与荷瘤对照组相比具显著性差异.结论:Res-SLN对荷瘤小鼠肿瘤生长具有一定的抑制作用,抑制作用强于Res,并有剂量依赖性.  相似文献   

4.
目的:探讨人参新炮制品—黑参提取物体内抗肿瘤的活性。方法:采用S180实体瘤、Hep A肝癌腹水瘤制备荷瘤小鼠,通过测定肿瘤质量、生存时间、脾脏胸腺质量,计算黑参抗肿瘤的抑瘤率、生命延长率和胸腺脾脏指数,观察黑参抗实体瘤、腹水瘤及免疫功能调整作用。结果:黑参高剂量组可以抑制荷瘤小鼠S180实体瘤肿瘤生长,延长Hep A肝癌腹水瘤小鼠的存活时间,改善免疫功能指标。结论:黑参提取物在抗肿瘤和肿瘤免疫调节方面作用较好。  相似文献   

5.
目的:探讨熟地黄多糖对H22腹水瘤、S180肉瘤小鼠抑瘤作用及生存时间的影响。方法:观察熟地黄多糖对H22、S180荷瘤小鼠的抑瘤率、生命延长率、肝/体比、脾脏指数等指标的影响。结果:与模型组比较,熟地黄多糖组抑瘤率、生命延长率、肝/体比、脾脏指数明显改善(P0.05)。结论:熟地黄多糖能明显地抑制H22、S180肿瘤生长,延长荷瘤小鼠存活时间,并能保护小鼠的肝脏、脾脏和体质量。  相似文献   

6.
目的:研究蛇莲方的抗肿瘤和免疫调节作用。方法:采用体内移植性肿瘤和体外拒染法,观察蛇莲方的抗肿瘤作用和免疫调节作用。结果:SLF能显著抑制S180、Heps和H22等实体瘤的生长;延长EAC腹水瘤、肝癌HepA小鼠的生存时间:增强幼稚小鼠的胸腺、脾脏指数;增强小鼠炭粒廓清功能。提高巨噬细胞吞噬鸡红细胞的能力;促进荷瘤小鼠或正常小鼠溶血素抗体的生成;增强二氯硝基苯(DNCB)诱导正常小鼠和CTX所致免疫低下小鼠的迟发性超敏反应(DTH)能力。体外实验表明,SLF对S180、HL60细胞生长影响不大。结论:蛇莲方具有抗肿瘤作用,其作用并非通过细胞毒作用,而与增强机体免疫等多方面有关。  相似文献   

7.
D-氨基葡萄糖盐酸盐的抗肿瘤作用   总被引:15,自引:0,他引:15  
目的 :研究D 氨基葡萄糖盐酸盐灌胃给药 (ig)对荷瘤小鼠的抗肿瘤作用 ,考察该药对荷瘤小鼠的白细胞生成和体重有无抑制作用。方法 :采用抗移植性肿瘤实验方法 ,检测受试药物对荷瘤小鼠的瘤重、生命延长率、外周血白细胞总数、骨髓粒细胞与红细胞比值及体重的影响。结果 :D 氨基葡萄糖盐酸盐 2 0 ,10mg/kg连续给药 10d对小鼠移植肉瘤 180 (S1 80 )的肿瘤抑制率分别为 66 7%和 57 1% ;对肝癌腹水瘤 (Heps)小鼠的生命延长率分别为 2 0 8 2 %和 13 3 7% ;该药 2 0mg/kg对小鼠移植的艾氏腹水实体瘤 (EC)瘤重有显著抑制 (P <0 0 5)作用 ,10mg/kg也有一定的抑制作用 ,但与对照组比较无显著差异。高、低剂量对该模型小鼠外周血白细胞、骨髓粒细胞与红细胞比值无明显抑制作用。该药对荷瘤小鼠体重无明显影响。结论 :D 氨基葡萄糖对小鼠移植肉瘤 180 (S1 80 )、肝癌腹水瘤 (Heps)、EC腹水实体瘤有显著的抑制作用 ,该抑瘤作用属首次发现。但该药对EC腹水实体瘤小鼠白细胞生成和荷瘤小鼠体重无明显抑制作用。  相似文献   

8.
目的:研究复方三茶蜜丸对小鼠S180实体瘤的抑制作用、对肝癌H22腹水瘤小鼠生存期的影响及对环磷酰胺治疗小鼠S180实体瘤的增效作用。方法:以环磷酰胺和氟尿嘧啶为阳性对照药,观察复方三茶蜜丸对荷瘤S180和肝癌H22腹水瘤小鼠瘤重、抑瘤率及生命延长率的影响,以及对环磷酰胺治疗小鼠S180实体瘤瘤重、抑瘤率的影响。结果:复方三茶蜜丸高、中、低剂量组(6,3,1.5 g·kg-1)连续ig 10 d后对S180小鼠的抑瘤率分别为38.1%,13.2%,2.1%,与剂量呈正相关,其中高剂量组S180小鼠的瘤重显著减轻(P0.05);用药后肝癌H22小鼠的生命延长率分别是31.9%,30.5%,5.0%,与剂量呈一定的正相关,其中高、中剂量可明显延长肝癌H22腹水瘤小鼠的生存期(与对照组比较P0.05);联合环磷酰胺用药后S180小鼠的抑瘤率分别为79.7%,74.7%,76.4%,S180小鼠的瘤重显著减轻(与对照组比较P0.01);与单用复方三茶蜜丸组比较,S180小鼠的瘤重显著减轻(P0.01或P0.05)。结论:复方三茶蜜丸可抑制小鼠S180肿瘤生长,延长肝癌H22腹水瘤小鼠生存期,对环磷酰胺治疗小鼠S180实体瘤有增效作用。  相似文献   

9.
广西莪术5种不同炮制品抗肿瘤作用研究   总被引:2,自引:2,他引:0  
目的 :研究广西莪术5种不同炮制品体内抗肿瘤作用。 方法 :采用S180细胞、H22细胞制备移植性肿瘤模型,以S180肉瘤小鼠和H22荷瘤小鼠的实体瘤重、抑瘤率、生存延长率为指标,评价广西莪术5种不同炮制品对移植性肿瘤的抑制作用,并计算肝系数、脾系数。 结果 :广西莪术5种炮制品对体内S180肉瘤小鼠具有一定的抑制作用,莪术醋煮品、莪术醋炙品、环磷酰胺(CTX)的瘤重系数与模型组比较有显著性差异(P<0.05),其中莪术醋煮品、莪术醋炙品、CTX抑瘤率分别为51.9%,41.4%,54.2%。对H22荷瘤小鼠莪术蒸煮品、莪术鲜品也有一定的抑瘤作用,抑瘤率分别为32.7%,35.3%。 结论 :广西莪术5种不同炮制品对体内移植性肿瘤(肉瘤、荷瘤)小鼠有一定的抑制作用。  相似文献   

10.
无花果多糖预防性给药对荷瘤小鼠的影响   总被引:5,自引:0,他引:5  
戴伟娟  司端运  辛勤  李建美  刘善庭 《中成药》2001,23(10):740-742
目的:观察无花果多糖对荷瘤小鼠的影响。方法:以荷S180实体瘤及艾氏腹水癌(EAC)实体瘤和腹水瘤小鼠为模型,在小鼠右肢腋部皮下或腹腔内接种活瘤细胞,荷瘤前10d连续灌胃给药,观察其抑瘤率、动物存活时间及免疫器官重量的变化。结果:无花果多糖能显著抑制肿瘤的生长,对荷瘤造成的脾和胸腺指数的降低有一定恢复作用。结论:无花果多糖预防性给药对实体瘤有明显的抑制作用。  相似文献   

11.
汤卫国  王奇志  印敏  王鸣  陈雨  张建华  冯煦 《中草药》2014,45(15):2172-2177
目的建立微波消解-电感耦合等离子体质谱(ICP-MS)直接稀释测定脉络宁注射液中25种矿物质元素(Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V、As、Cd和Hg)的方法。方法分别对微波消解条件和测试条件进行考察;样品经微波消解后,采用电感耦合质谱仪测定25种矿物质元素,并对测定方法学进行考察。结果确定最佳消解条件为3步缓慢升温:400 W 80℃升温10 min,保留5 min;600 W 120℃升温10 min,保留5 min;900 W 200℃升温20 min,保留20 min;25种矿物质元素在各自的线性范围内线性关系良好,r≥0.999 6,精密度、稳定性和重复性试验的RSD均符合定量分析要求;加标回收率为94.7%~106.1%,RSD在0.34%~2.79%。脉络宁注射液中检测出Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V,未检出As、Cd和Hg。结论该方法简便、迅速、准确,适用于脉络宁注射液中25种矿物质元素的同时测定。  相似文献   

12.
The disturbance and instability of laterality are obstacles to diagnostics and therapy. Correction prior to starting therapy is required. They also predispose toward defined health problems and unspecific diseases. Numerous research activities provide evidence of the relevance of undisturbed laterality in diagnostics and therapy. Techniques of testing and therapeutic corrections will allow for optimized therapy success.  相似文献   

13.
14.
The Journal of Acupuncture and Tuina Science, a journal with an international scope (IS SN 1672-3597, CN 31-1908/R, Bimonthly), is embodied by 'Springer Verlag' Database, Index Copernicus (IC) and Chinese Scientific and Technical Paper and Citations Data (CSTPCD). You can search full text on http://www, springerlink, com/content/1672 -3597.  相似文献   

15.
正Beverages based on Ilex paraguariensis A.St.-Hil.are used in the south Brazil and other Latin American countries located at the so-called southern cone.It is known as chimarro or mate in south and southeast Brazil,tererêin  相似文献   

16.
This paper deals with an interdisciplinary study covering historic, botanical, phytochemical, pharmacological and clinical aspects of rhubarb and related species, to lay stress on the correlation between plant phylogeny, chemical constituents and purgative activity.

It was found that the official rhubarbs were exclusively restricted in the Sect. Palmata e.g. Rheum palmatum R. palmatum var. tanguticum R. officinale; the following criteria may serve as their standard, viz., the presence of sennoside derivatives and rhein, the occurrence of the reduced form of rhein and aloe-emodin, the leaves with any kind of palmate incision. Comprehensive multivariate analyses showed that there is a very close relationship between the leaf incision, existence of sennosides or rhein and purgative activity.  相似文献   


17.

Background

At present, the state-of-the-art medication in treating idiopathic taste disorder (gustatory dysfunction) is zinc. If zinc medication was unsuccessful, not tolerated or if it is contraindicated the persons affected can hardly be helped.

Objectives

In a randomized placebo-controlled clinical trial an attempt was made to determine the efficacy of acupuncture.

Methods

The treatment group was treated with acupuncture needles, the placebo group with an inactive acupuncture-laser. Endpoints of the study were changes in the taste test, the quality of life and the severity of symptoms of depression (BDI) as well as mood changes (ZMS). Satisfaction with the success of the respective therapy was also evaluated. Data were collected before and after therapy and again for the treatment group 10 weeks after completion of the treatment period.

Findings

Treatment with real acupuncture showed a significant improvement in gustatory function as well as a significant improvement in psychological symptoms. Greater satisfaction with the treatment results was evident in the treatment group. The treatment results of acupuncture remained stable over a period of ten weeks after completion of the treatment.

Conclusion

Acupuncture was effective in the therapy of idiopathic taste disorders and therefore it is an effective alternative when zinc medication is not tolerated or unsuccessful. But it is also suitable as a therapy of first choice. Acupuncture can be considered as an extension of the therapeutic spectrum in the difficult treatment of taste disorders.  相似文献   

18.

Background

Experimental and clinical studies postulate a neurobiological mechanism of acupuncture by modulating central pain systems, neurohormones and -transmitters. It seems to be quite likely that the autonomic nervous system (ANS) plays an important mediating role in this neuromodulation.

Aim

In measuring heart rate variability (HRV), as a non-invasive approach to the ANS-function, the object of this study was to monitor probable acupuncture-induced changes of autonomic balance. The innovative technology of laser-needle acupuncture offers for the first time a stimulation method which fulfils the demands on a placebo-controlled acupuncture trial not requiring controversial sham acupuncture.

Method

19 healthy voluntary subjects underwent 3 treatments in randomized sequence, consisting of placebo-, 1-point- (PC 6) and simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle-stimulation over 20 minutes. Before, during and after placebo-/verum laser-needle acupuncture, HRV-data for normalized HF(high frequency)- and LF(low frequency)-Power (nHF, nLF) and their quotient nLF/nHF obtained by power spectrum analysis (FFT), were measured and analyzed statistically at 5 different time points (ANOVA repeated measures, p < 0,05).

Results

During both verum applications, the 1-point- (PC 6) as well as the simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle stimulation, significant changes of the ANS-activity were found in comparison to the placebo application. The most significant modification of HRV was an increase of nHF (p < 0,05 (PC 6), p < 0,0001 (PC 6, LR 3, SI 3)) as an expression of growing vagal activity during acupuncture.

Conclusion

Laser-needle acupuncture causes in 1-point-stimulation (PC 6) as well as in simultaneous 3-point-stimulation (PC 6, LR 3, SI 3) significant changes in HRV in comparison to placebo application. HRV-monitoring seems to be a suitable approach in exploration of acupuncture-induced changes of ANS and could possibly be established in combination with laser needle acupuncture as a standard for further scientific and clinical acupuncture investigations which are greatly needed.  相似文献   

19.
瑞香科植物广泛分布于世界热带和温带地区,其中多种植物可供药用。在对该科植物的研究中发现,黄酮类、木脂素和香豆素等酚性化合物的低聚体为其重要的特征性成分,药理活性主要表现在抗肿瘤、抗炎、抗氧化、抗菌和抗病毒等方面。对已发现的酚性聚合体的化学结构、植物来源及药理活性进行综述,为瑞香科植物今后的研究和开发利用提供参考。  相似文献   

20.
目的采用HPLC梯度洗脱法同时测定沉香化滞丸中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚11种成分。方法采用Thermo Syncronis C18色谱柱(250 mm×4.6 mm,5μm),流动相为水-乙腈,梯度洗脱:0~10 min,20%乙腈;10~20 min,20%~40%乙腈;20~24 min,40%乙腈;24~26 min,40%~52%乙腈;26~30 min,52%乙腈;30~31 min,52%~90%乙腈;31~35 min,90%乙腈;35~40 min,90%~100%乙腈;40~43min,100%乙腈;43~45min,100%~20%乙腈;检测波长215nm,体积流量1.0m L/min,柱温30℃,进样量20μL。结果各成分在43 min内分离良好,沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚的线性范围分别为1.4~13.6、10.0~200.0、31.5~315.0、1.0~120.1、1.8~50.6、0.93~10.1、1.8~30.0、0.2~40.3、1.8~18.1、1.7~25.0、0.45~10.70μg/mL;样品中各成分的平均回收率均在98.90%~100.87%;11种成分精密度RSD在0.55%~1.54%;供试品溶液在30 h内稳定性良好,RSD在0.75%~1.94%;重复性RSD在0.39%~1.73%。6批次样品中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚质量分数分别为92.0~201.0、511.5~9 033.0、5 475.0~12 635.5、54.5~5 095.5、192.0~2 137.5、117.0~391.5、106.5~1 281.5、13.0~136.5、93.5~199.0、177.0~1 207.0、33.5~251.5μg/g。结论本方法准确、快速、简便,重复性好,精密度高,适用于沉香化滞丸中多种活性成分的定量分析。  相似文献   

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