Results 41 to 50 of about 807 (103)

环状RNA:消化道肿瘤诊治的新靶点 [PDF]

open access: yes, 2018
环状RNA(circular RNA,circ RNA),作为非编码RNA(non-coding RNA)的重要成员,广泛存在于包括人类在内的多种原核及真核生物体内,对生命活动具有重要的调控作用,已成为非编码RNA研究领域的热点。与线性RNA相比,circ RNA呈共价闭合环状结构,具有结构稳定、序列保守、组织特异性、时空特异性等特点,在包括消化道肿瘤在内的多种疾病中发挥重要作用。circ RNA可通过竞争性吸附mi RNA、调控基因表达、参与蛋白质翻译等多种途径,参与肿瘤的发生发展,在肿瘤早期诊断 ...
施颖, 李金莹, 黄卫
core  

NOSES左结直肠癌根治术取标本困难病例的回顾性分析 [PDF]

open access: yes, 2018
目的评价经自然腔道取出标本的全腹腔镜下结直肠癌根治术使用蔡氏套管器的临床应用价值。方法通过自制的专利器械——蔡氏套管器,对70例结直肠癌患者,行经自然腔道取出标本的全腹腔镜下结直肠癌根治术,并对患者的临床及手术资料进行回顾性分析。结果 70例患者均在全腹腔镜下完成手术,标本均经过肛门取出。其中降结肠癌7例,乙状结肠癌35例,直乙交界处癌2例,直肠中上段癌26例。无中转开腹和围手术期死亡。通过分析,术前使用\"体质肿瘤指数\"进行患者的评分,评估手术标本取出难易程度,同时 ...
丁志杰   +7 more
core  

Health economic evaluation of different colorectal cancer screening strategies in Hubei province: a Markov simulation analysis based on local cancer registration and domestic study data [PDF]

open access: yes
ObjectiveTo construct a Markov decision model for colorectal cancer screening, evaluate the long-term cost-effectiveness of different screening strategies, determine the optimal screening strategy, and provide a theoretical reference for improving ...
Bing MAO   +12 more
core   +1 more source

FGG在结直肠癌中的表达及意义

open access: yesZhongguo shiyan zhenduanxue, 2020
目的研究FGG蛋白在结直肠癌及其周围的癌旁组织的表达情况,探讨FGG在结直肠癌中的临床意义,以及评价作为该病肿瘤标志物的潜力。方法应用液质联用技术,分析结直肠癌中表达的差异蛋白情况,利用Western blot方法对其准确性进行验证。结果经质谱鉴定后得出FGG在结直肠癌中较正常组织中表达增高,Western blot结果与之吻合。结论可将FGG视为结直肠癌病情监测以及疗效预测中的潜在标志物之一。
马舒婷, 谢风, 刘金华, 李威
doaj  

Research of Esophagus Disease-aided diagnosis Based on Ultrasonic Endoscope Image [PDF]

open access: yes, 2015
食管疾病是常见疾病之一,对人们的健康产生了严重的威胁。随着超声内镜(EUS)应用的发展和普及,提高了食管成像清晰度,成为临床诊治的必要诊断工具。超声内镜可为食管疫病的诊断及给出合理的治疗方案给予非常大的帮助,但是国内外对EUS诊断主要依靠内镜医师个人经验,缺乏客观诊断依据,因此使得EUS的应用受到限制。由此看来利用计算机技术对食管疾病进行辅助诊断是非常有意义的。 本文主要研究三类食管EUS图像分类的问题,包括食管早癌、食管平滑肌瘤以及正常食管。首先对EUS图像进行去噪处理,之后提取EUS图像的特征点 ...
魏倩倩
core  

Potential risk of colorectal cancer associated with foodborne nanomaterials [PDF]

open access: yes
Colorectal cancer is a globally prevalent malignant tumor, and its incidence continues to rise along with the popularity of Westernized dietary habits.
Langzhi HE, Yun WANG
core   +1 more source

The epigenetic mechanism of imprinted gene IGF2 regulated by MEN1 in hepatocellular carcinogenesis [PDF]

open access: yes, 2015
原发性肝癌是肝细胞或肝内胆管上皮细胞发生的恶性肿瘤。死亡率仅次于胃癌和食道癌,其中肝细胞癌(hepatocellularcarcinoma,HCC)占原发性肝癌的90%。我们实验室围绕menin复合物调控的组蛋白甲基化与疾病发生关系开展了较系统深入的研究,证明了menin在肝细胞肝癌、非小细胞型肺癌及恶性黑色素瘤等非内分泌系统肿瘤中的重要生物学功能,阐明了menin调控组蛋白甲基化修饰的规律及机制。胰岛素样生长因子——2(insulinlikegrowthfactor2,IGF2 ...
丁丽红
core  

Expression and clinical significance of FGL1 and YAP1 in colorectal cancer [PDF]

open access: yes
Objective To investigate the expression characteristics and the reationship with clinical prognostic of fibrinogen-like protein 1(FGL1)and Yes-associated protein 1(YAP1)in colorectal cancer.
LIU Yuanming*,CUI Guangjie,CHEN Jiaqi,LU Yang,GAO Chao
core   +2 more sources

Prokaryotic expression of DHX32, preparation of monoclonal antibodies and the establishment of its detection method [PDF]

open access: yes, 2017
RNA螺旋酶可以通过水解三磷酸腺苷(ATP)供能来催化RNA双链解螺旋,在RNA代谢中发挥重要作用。DHX32是新发现的一种RNA螺旋酶,其广泛分布于体内组织,目前发现DHX32存在两种转录本,一种为DHX32全长,另一种通过可变剪切产生exon4缺失转录本(DHX32Δ4)。有研究表明,DHX32能改变JurkatT细胞对Fas信号的敏感性,通过下调c-FLIPshort的表达,从而促进JurkatT细胞凋亡。有研究表明,DHX32在结直肠癌中上调,且可以促进细胞生长及迁移,而最新的研究提示 ...
王景坤
core  

Shanghai plan for early screening, diagnosis and treatment of colorectal cancer (2023 edition) [PDF]

open access: yes
Colorectal cancer is a common malignant tumor in China. At present, the incidence rate and the mortality rate of colorectal cancer in China are on the rise.
Colorectal Cancer Special Committee of Shanghai Anti-Cancer Association
core   +1 more source

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