Results 91 to 100 of about 8,999 (156)

PET/CT检查在乳腺癌患者复发中的作用

open access: yesZhongguo shiyan zhenduanxue, 2013
目的研究乳腺癌患者血清肿瘤标志物出现异常后,PET/CT对早期发现乳腺癌复发的部位,及早进行治疗的价值。方法 82位乳癌患者,术后行常规复查时,出现1项或多项肿瘤标志物增高,常规行CT检查,检查后1-3个月内行PET/CT检查。当影像学检查提示阳性结节后,结果的最终判定是通过组织病理学诊断及随访。结果 PET/CT检查提示异常结节368个。真阳性:310个,假阳性:11个,真阴性:41个,假阴性:6个。在82名患者中,确诊为复发的真阳性患者:38名,假阳性:11名,真阴性:28名,假阴性:5名 ...
李宗涛, 郑立春
doaj  

Expression and Clinical Significance of mTOR and PTEN in Non-small Cell Lung Cancer [PDF]

open access: yes, 2010
Background and objective It has been proved that mTOR was an important signal transduction molecular and protein kinase regulating cell growth and proliferation, and mTOR could activate the downstream protein effector. PTEN could negatively regulate mTOR
Liang WANG   +5 more
core  

The Effects and Mechanisms of JMJD1A on Colorectal Tumorigenesis [PDF]

open access: yes, 2015
结直肠癌(colorectalcancer,CRC)是当今世界高发恶性肿瘤之一,多数由散发腺瘤阶段性发展而来,少数结肠癌的发生呈家族性聚集现象或由炎性肠病诱导发生。对结肠癌的早期筛查与诊断是结肠癌防治重点,由于结肠癌患者个体间差异性大,对靶向药物的开发是未来结肠癌治疗的重要辅助手段。 组蛋白去甲基化酶JMJD1A(Jumonjidomaincontaining1A)通过羟基化作用使组蛋白赖氨酸去甲基进而行使转录调节功能,参与精子生成、能量代谢、干细胞更新调控,也参与低氧诱导下的肿瘤调控 ...
苗萌萌
core  

脑膜瘤端粒酶的活性在判断复发和恶变中的价值

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2002
【目的】探讨端粒酶作为脑膜瘤标志物, 在肿瘤良恶性鉴别、恶性程度评估以及预后预测等方面的意义。【方法】 利用TRAP-ELISA 方法定量检测61 例(份)肿瘤标本端粒酶的活性(以ΔA =A 450-A690表示), 结合肿瘤的分类和患者的临 床资料, 分析端粒酶活性作为肿瘤良恶性及判断预后的标记物的可行性。另取正常脑组织标本20 例作为对照。【结果】30 例脑膜瘤中, 29 例脑膜瘤均未测到端粒酶活性;1 例端粒酶阳性(阳性率3.3%), ΔA =0.237 ;全组ΔA 平均值=0.049 ...
谭平国, 丁之明
doaj  

Diagnotic Value of the Combined Determination of Telomerase Activity in Induced Sputum, Pleural Effusion and Fiberobronchoscopic Biopsy Samples in Lung Cancer [PDF]

open access: yes, 2010
Background and objective It has been proven that telomerase activation correlates with the carcinogenesis, aggressiveness and turnover of lung cancer.
Cheng ZHAO   +4 more
core  

血清肿瘤标志物对胃癌诊断及预后判断的临床意义

open access: yesZhongguo shiyan zhenduanxue, 2010
目的探讨血清肿瘤标志物癌胚抗原(carcinoembryonic antigen,CEA)、糖链抗原125(carbohydrate antigen125,CA125)、糖链抗原199(carbohydrate antigen 199,CA199)对胃癌诊断及预后判断的临床意义。方法采用电化学发光法测定78例胃癌患者、52例良性胃病者、47例健康人血清中CEA、CA125、CA199的水平,比较三组间及胃癌不同分期患者间的差异。结果胃癌组血清CEA、CA125、CA199均水平高于良性胃病组及健康对照组(
刘颖, 林中, 胡琼花
doaj  

Analysis of Differentially Expressed Proteins in Self-Paired Sera of Advanced Non-small Cell Lung Cancer Patients Responsive to Gefin [PDF]

open access: yes, 2009
Background and objective All the advanced NSCLC patients that received EGFR-TKI therapy will eventually relapse after a period of efficacy. The aim of this study is to investigate the serum biomarkers as potential predictive factors for the efficacy of ...
Ailin GUO   +10 more
core  

102例小细胞恶性肿瘤的免疫组化研究

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1989
小细胞恶性肿瘤,含小细胞未分化癌、恶性淋巴瘤、神经母细胞瘤等,其形态相似,常规染色难以确定组织来源的肿瘤共102例,用多种抗血清免疫组化标记,观察其分布情况,着重探讨这些标志物在肿瘤鉴别诊断上的实用价值。
doaj  

痰液细胞原血红素联合肿瘤标志物检测对非小细胞肺癌的诊断意义

open access: yesZhongguo shiyan zhenduanxue, 2017
目的探讨痰液细胞原血红素联合肿瘤标志物检测对非小细胞肺癌诊断的临床意义。方法选择我院收治的70例非小细胞肺癌患者(NSCLC组)、85例肺良性疾病患者(肺良性疾病组)、50例体检健康者(健康对照组)作为研究对象,所有入组对象入院后均进行痰液细胞原血红素检查、癌胚抗原(CEA)、糖蛋白抗原19-9(CA19-9)、神经元特异性烯醇化酶(NSE)检查,分析不同组别痰液细胞原血红素、肿瘤标志物水平差异,分析痰液细胞原血红素、肿瘤标志物及联合检测的阳性率及诊断价值。结果 NSCLC组、肺良性疾病组 ...
刘建博
doaj  

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