富勒烯衍生物C_(60)(OH)_x(O)_y在生物体内的分布

来源 :科学通报 | 被引量 : 0次 | 上传用户:kingjongz
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
对富勒烯衍生物的生物活性研究结果表明它们可能在医药领域存在巨大的潜在应用价值.为了能了解作为药物或药物载体的C60衍生物在生物体内的分布,用临床上用得最多的显像核素99mTc对C60的一种简单水溶性衍生物C60(OH)x(O)y进行标记,使用γ计数器测定标记物在小鼠体内各脏器和组织中放射性以及SPECT(单光子发射计算机断层)对注射有标记物的新西兰大白兔进行显像来确定C60衍生物在生物体内的分布和代谢行为.结果表明,标记物能很快被组织吸收,其中头颅骨、胸骨、脊椎、四肢蜂窝、肝脏、脾摄取较高.除脑以外,在其他各脏器的清除速度均不快,化合物可能通过肾脏和消化道排泄.生物分布与Yamago等人的实验结论不一致,讨论了造成差异的可能原因.C60本身在多大程度上左右C60衍生物在生物体内的分布,有待进一步的研究. The biological activity of fullerene derivatives The results show that they may have great potential in the field of medical applications. In order to understand the distribution of C60 derivatives as carriers for drugs or drugs in vivo, a simple water-soluble derivative of C60, C60 (OH) x (O) y, was performed with the most clinically used imaging nuclide 99mTc Labeling of New Zealand White Rabbits with Marker Radioactivity Detected in Gut Organ and Tissues Using a γ Counter and SPECT (Single Photon Emission Computed Tomography) to Determine the Distribution of C60 Derivatives in Vivo And metabolic behavior. The results showed that the label can be quickly absorbed by the tissue, including skull, sternum, spine, limbs, honeycomb, liver, spleen uptake. In addition to the brain, the removal rate in other organs are not fast, compounds may be excreted through the kidneys and digestive tract. The biodistribution is inconsistent with that of Yamago et al., And the possible causes for the differences are discussed. The extent to which C60 itself contributes to the distribution of C60 derivatives in vivo remains to be further studied.
其他文献
在学习“相交线与平行线”时,经常会遇到求角度的问题,由于其图形中直线及角较多,常使初学者眼花缭乱,无从下手.此时,若利用问题中的相等关系建立方程,运用方程法求解,则可收到事半功倍之效.  例1 (2015年泰安)如图1,AB∥CD,EF交AB于点E,交CD于点F,FG平分∠EFD,交AB于点G.若∠1=58°,则∠FGB的大小等于().  A. 122°  B. 151°  C, 116°  D.
在建党七十七周年来临之际,在江总书记关于对消防工作“全党同志要敲起警钟”的重要指示公开发表之际,在《中华人民共和国消防法》正式出台之际,我们年轻的战友陈建军,以其大
Objective:To study the morphology,biochemistry and bioactivity of the epidermal glands of the glandular morphotype of Christella parasitica(C.parasitica)(L.) H.
运用生物力学知识对体操动作技术进行分析,可起到“知其然”,又“知其所以然”的作用。对激发学生积极思维、勇于探索和提高教学质量有明显效果。 The use of biomechanical
目的调查分析开封地区糖尿病的流行情况,为控制糖尿病和制定相应的预防措施提供科学依据。方法采用随机抽样和方便抽样相结合的抽样方法,抽取开封市五区四县辖区内常住居民成
Objective:To evaluate the antinociceptive activity of the methanol extract of Ricinus communis leaves(MRCL).Methods:Antinociceptive activity was evaluated using
牛黄为少常用珍贵中药,《中国药典》(2000年版)作收载,其来源为牛科动物中Bos taurus domesticus Gmelin或水牛Bubalus buhlis L的干燥胆结石。其性味甘、凉,归心、肝经,具有
目的:建立用高效液相色谱法测定健心冲剂中甘草酸含量的方法。方法:C_(18)柱;流动相为甲醇-水(70∶30),紫外检测波长280nm。结果:1.22~4.88μg范围内,标准曲线回归方程为:A=4
Objective:To evaluate the possible antifilarial effect of ethyl acetate extract of Vitex negundo(Verhenaceae)leaves against Selaria cervi filarial parasite in v
In the prediction process of large-scale earthquake damage occurred in urban and rural regions,new models and approaches,which are different from traditional on