期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
Molecular aspects of prostate cancer with neuroendocrine differentiation 被引量:2
1
作者 Qi Li Connie S. Zhang Yifen Zhang 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2016年第1期122-129,共8页
Neuroendocrine differentiation (NED), which is not uncommon in prostate cancer, is increases in prostate cancer after androgen-deprivation therapy (ADT) and generally appears in castration- resistant prostate canc... Neuroendocrine differentiation (NED), which is not uncommon in prostate cancer, is increases in prostate cancer after androgen-deprivation therapy (ADT) and generally appears in castration- resistant prostate cancer (CRPC). Neuroendocrine ceils, which are found in normal prostate tissue, are a small subset of cells and have unique function in regulating the growth of prostate ceils. Prostate cancer with NED includes different types of tumor, including focal NED, pure neuroendocrine tumor or mixed neuroendocrine-adenocarcinoma. Although more and more studies are carried out on NED in prostate cancer, the molecular components that are involved in NED are still poorly elucidated. We review neuroendocrine cells in normal prostate tissue, NED in prostate cancer, terminology of NED and biomarkers used for detecting NED in routine pathological practice. Some recently reported molecular components which drive NED in prostate cancer are listed in the review. 展开更多
关键词 Prostate cancer neuroendocrine differentiation (NED) molecular components
下载PDF
完全分配格上的良Urysohn性(英文) 被引量:1
2
作者 方进明 《数学进展》 CSCD 北大核心 2004年第6期712-718,共7页
本文目的是在无逆序对合的分配格上研究余拓扑的Urysohn性质,利用co-Heyting代数的pseudo-negation和分子的linked component的概念,在完全分配格上定义了一种新的Uryso hn性质,称之为良Urysohn性.文中详细地讨论良Urysohn性的基本性质... 本文目的是在无逆序对合的分配格上研究余拓扑的Urysohn性质,利用co-Heyting代数的pseudo-negation和分子的linked component的概念,在完全分配格上定义了一种新的Uryso hn性质,称之为良Urysohn性.文中详细地讨论良Urysohn性的基本性质,并利用文中建立的Urysohn收敛理论给出了良Urysohn性的刻画定理. 展开更多
关键词 拓扑分子格 HEYTING代数 linked component
下载PDF
提高采收率用石油磺酸盐的分析研究进展 被引量:2
3
作者 陈国浩 郭东红 +2 位作者 周涛 张贺宏 沈上圯 《理化检验(化学分册)》 CAS CSCD 北大核心 2019年第4期489-496,共8页
石油磺酸盐是一类极其重要的驱油用表面活性剂,从石油磺酸盐的组成测定、结构分析和相对分子质量测定三方面综述了石油磺酸盐的分析研究进展,并对不同的分析方法做了比较。分析了目前存在的问题并展望了未来的发展趋势(引用文献50篇)。
关键词 石油磺酸盐 提高采收率用油 组成分析 结构分析 相对分子质量测定
下载PDF
Molecular characterization of root exudates using Fourier transform ion cyclotron resonance mass spectrometry 被引量:3
4
作者 Yuexia Miao Jitao Lv +2 位作者 Honglin Huang Dong Cao Shuzhen Zhang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2020年第12期22-30,共9页
The release of root exudates(REs) provides an important source of soil organic carbon. This work revealed the molecular composition of REs of different plant species including alfalfa( Medicago sativa L.), bean( Phase... The release of root exudates(REs) provides an important source of soil organic carbon. This work revealed the molecular composition of REs of different plant species including alfalfa( Medicago sativa L.), bean( Phaseolus vulgaris L.), barley( Hordeum vulgare L.), maize( Zea mays), wheat( Triticum aestivum L.), ryegrass( Lolium perenne L.) and pumpkin( Cucurbita maxima) using electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry(ESI FT-ICR MS). The combination of positive ion mode( + ESI) and negative ion mode(-ESI) increased the number of the molecules detected by ESI FT-ICR MS, and a total of 8758 molecules were identified across all the samples. In detail, lipids and proteins and unsaturated hydrocarbons were more easily detected in + ESI mode, while aromatic compounds with high O/C were readily ionized in-ESI mode, and only 38% of the total assigned formulas were shared by -ESI and + ESI modes. Multivariate statistical analysis of the formulas indicated that the close related plants species secreted REs with similar molecular components. Moreover, the unsaturation degree and nitrogen content were the two key parameters able to distinguish the similarities and differences of molecular components of REs between plant species. The results provided a feasible analysis method for characterization of the molecular components of REs and for the first time characterized the molecular components of REs of a variety of plant species using ESI FT-ICR MS. 展开更多
关键词 Root exudates molecular components ESI FT-ICRMS Positive ion mode Negative ion mode
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部