查询词典 alkaloids

The function and the lately research on alkaloids of red imported fire ant are discussed also.

本文还对入侵红火蚁毒液生物碱的功能及研究进展进行了讨论。

Quinazoline is a class of alkaloids,exist in some plants,such as Saxifragaceae, Folium etc.

这些成分主要存在于常山、大青叶等中药中，具有广泛的生物活性。

Both of them harbour a large proportion of diurnal species that exhibit conspicuous colouration on the elongated forewing and reduced hindwing and the annular black-yellow abdomen plus the chemical defence employing plant alkaloids is often considered to be relevant

此两族昆虫都包含大量日行性物种，且在外型上具有显眼的色彩、较长前翅、退化的后翅以及黑、黄相间的腹部环纹，再加上以植物碱作为二次代谢物的防御机制，因此它们常被认为具有拟蜂现象(wasp-mimicry)。

Aim: Search for the optimum extract method of Fritillaria Jilin in order to provide to effective method for qualitative analysis of alkaloids of Fritillaria Jilin .

目的：探索吉林产贝母生物碱的最佳提取方法，为吉林产贝母生物碱成分的定性定量分析提供有效的方法。

Advance basic research has confirmed that the alkaloids extracted from thunberg fritillary bulb which is widely used in clinical medicine in vitro and in animal experiments have reversed MDR of leukemia. It will increase resistance of acute leukemia cells anticancer drug concentration and lower resistance the expression of Pgp. Pre-Clinical Experimental Research also shows that the conventional chemotherapy combined with the powder of thunberg fritillary bulb for the treatment of acute leukemia. Clinical complete response rate was higher, especially for patients with refractory or relapsed leukemia patients better clinical remission rate. In addition, Caladium particles Slices with chemotherapy in the treatment of RAL Clinical studies also show the Chinese refractory leukemia improve clinical efficacy safe and reliable.

先期基础研究已证实：临床常用的化痰散结中药浙贝母提取的生物碱体外及动物实验均有逆转白血病多药耐药的生物活性，能增加耐药的急性白血病细胞内抗癌药物浓度，降低耐药蛋白Pgp的表达；临床预实验研究也表明，常规化疗方案配合浙贝母粉用于急性白血病临床治疗，其临床完全缓解率明显高于对照组，尤其对难治及复发白血病患者临床缓解率更佳；此外，单药浙贝母颗粒配合化疗治疗RAL的临床研究亦显示中药在提高难治性白血病临床疗效方面安全可靠。

The results show:gelsemium total alkaloids injected into vein 4 mg per weight inhibit respiratory remarkably,slow heart rate and drop blood pressure .

结果表明：每公斤体重注射4.0mg以上的钩吻总碱能抑制家兔的呼吸，使家兔心率减慢、血压降低。

Gelsemium total alkaloids ; respiration ; heart rate ; blood pressure

钩吻总碱；呼吸；心率；血压

This paper aims at the study of the toxic mechanism of gelsemium total alkaloids ,i.e. their impacts on respiration,heart rate and blood pressure by 5 different concentrations(0.5,1.0,2.0,4.0,8.0 mg/kg).

为有效合理地利用钩吻，以家兔作为研究对象，每公斤体重分别静脉注射0.5，1.0，2.0，4.0，8.0mg的钩吻总碱，研究钩吻总碱对家兔的呼吸、心率和血压的影响，综合分析其毒理作用。

In these studies, gelsemium were obtained from suburb YuLin city, Guangxi province .The gelsemium total alkaloids which were the main toxicity constituents of the plant were extracted, isolated , identified .Acute toxic and subchronic tests on mice were further studied. The experiment established foundation of production and application of poisonous plant Gou-Wen.

本试验以广西玉林市郊外的钩吻植株为材料，提取、分离、鉴定其主要毒性成分钩吻生物碱，并进一步研究了钩吻生物碱对小鼠的急性毒性和亚慢性毒性作用，为有毒植物钩吻的生产应用提供了理论依据。

Members of the purine group include adenine and guanine, which are constituents of the nucleic acids, and certain plant alkaloids, e.g.

嘌呤基的成员包括腺嘌呤和鸟嘌呤，它们是核酸以及某些植物生物碱的成分，如咖啡因和可可碱。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。