Results 61 to 70 of about 69,546 (177)
Zhongguo shiyan zhenduanxue, 2008 目的探讨乳腺癌ER、PR、Her-2表达与临床病理特征的相关性。方法采用回顾性分析,统计383例乳腺癌患者ER、PR、Her-2的表达;分析ER、PR、Her-2表达的相关性;及其与乳腺癌临床病理特征的关系。结果①ER、PR、Her-2阳性率分别为60.4%、64.1%、17.2%。②ER与PR表达呈正相关;ER、PR分别与Her-2表达负相关;Her-2与ER、PR共同表达呈负相关 ...
郭欢续, 白欧
doaj
Silencing of PKM2 promotes Fas-Dependent Apoptosis via P53 -Mediated in Gastric cancer Cells [PDF]
, 2015 背景和目的：PKM2作为丙酮酸激酶（pyruvatekinaseisoenzyme，PK）家族成员，在肿瘤中呈现高表达，并且在肿瘤能量代谢过程中起到关键作用。近期研究发现，PKM2还具备转录因子活性，参与调控细胞增殖与迁移侵袭，在恶性肿瘤的发生发展中发挥重要作用。我们研究发现，胃癌细胞株BGC823及AGS中基因沉默PKM2后，促进了顺铂诱导的细胞凋亡，由此表明PKM2可以减低胃癌细胞对化疗药物的敏感性，但具体机制有待探索 ...
宋俊娇
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
乳腺癌生存期相关长非编码 MAPT-AS1 及其共表达基因筛选与验证
Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】筛选乳腺癌患者生存期相关差异表达长链非编码RNA（lncRNA）及其共表达基因，并验证其乳腺癌细胞中的表达情况。【方法】通过TCGA数据库筛选943例RNA-seq数据信息：（837例乳腺癌患者+106例正常对照），发现长非编码MAPT-AS1高表达，乳腺癌患者生存期更长。构建长非编码MAPT-AS1过表达和干扰质粒，将构建好的质粒转染乳腺癌细胞株T47D，并用嘌呤霉素筛选出稳定表达的T47D细胞株，通过RT-qPCR验证长非编码MAPT-AS1及其共表达基因的表达情况。【结果 ...
许家瑞 +6 more
doaj
Expression and Clinical Relevance of uPA and ET-1 in Non-small Cell Lung Cancer [PDF]
, 2011 Background and objective uPA and ET-1 proteins have been reported to be up-regulated in some of human cancers. The aim of this study is to investigate the alteration and clinical relevance of uPA and ET-1 protein levels in non-small cell lung cancer ...
Boshi WANG +7 more
core
Melting Preparation for Tungsten‐Doped Graphene/Copper Composites
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Melting production plays a pivotal role in the modern copper industry. However, applying this process to fabricate nanocarbon (e.g., graphene, carbon nanotubes)‐reinforced copper matrix composites has remained a long‐standing challenge for nearly 2 decades.
Yunzhong Wu +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2004 目的 探讨HLA I、β2 m、B7 1分子在肿瘤发生、发展中的作用。方法 流式细胞技术检测胃肿瘤细胞和外周血淋巴细胞HLA I、β2 m、B7 1分子的表达 ;放射免疫技术 （RIA）检测血清中 β2 m的含量。结果 ①胃癌细胞表面HLA I分子表达明显降低。②胃癌细胞表面B7 1分子表达明显降低或缺如。③β2 m在肿瘤细胞上的表达明显增高 ;作相关分析发现 ,β2 m与HLA I的表达呈负相关关系 （r=- 0 4 70 ,P
武焕玲 +4 more
doaj
过表达环状RNA circTCF25经miR-128靶向VEGF-C对膀胱癌细胞生物学行为的影响
Zhongguo shiyan zhenduanxue, 2022 目的 本文旨在分析过表达环状RNA circTCF25对膀胱癌细胞生物学行为的影响,明确环状RNA circTCF25是否与膀胱癌相关。方法 取于佳木斯大学附属第一医院病理科保存的未经放化疗治疗且经临床确诊的20例膀胱癌患者膀胱癌组织及癌旁组织,并培养膀胱癌细胞株T24。分析miR-128、VEGF-C在膀胱癌组织及癌旁组织中的表达情况,膀胱癌细胞做环状RNA circTCF25过表达和空载转染。分析过表达环状RNA circTCF25对miR-128、VEGF-C表达、膀胱癌细胞生长、增殖活性 ...
doaj
The optimized expression technology of marine animal-sourced antimicrobial peptides in Pichia pastoris and the development of antimicrobial peptide as feedstuff additive [PDF]
, 2015 抗生素污染问题是目前影响我国水产养殖业可持续健康发展的重大科技问题，抗生素（antibiotics）作为常用抗菌药物，被广泛应用于水产养殖业，但是抗生素超标所引起的细菌耐药性问题已成为全球公共健康问题，因此寻找抗生素的有效替代品是目前国内外本领域的研究热点之一。抗菌肽（antimicrobialpeptide）是先天性免疫的重要组分，广泛存在于生物界的各个门类，进化上相对保守，具有广谱抗菌活性、且不会产生细菌耐药性，被预言为最有希望替代抗生素的天然药物，具有广阔的应用前景 ...
彭会
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The growing concern over human health issues, driven by increasingly severe electromagnetic pollution from 5G communication, has made the urgent development of high‐performance electromagnetic wave (EMW) absorbing materials. Although carbide‐based materials are promising because of their conductive and polarization losses, existing single ...
Chenqiang Duan +9 more
wiley +1 more source