Results 31 to 40 of about 32,478 (167)

乳腺癌根治术患者miRNA-23a表达水平与术后复发转移的关系

open access: yesZhongguo shiyan zhenduanxue, 2018
目的探讨乳腺癌根治术患者miRNA-23a表达水平与术后复发转移的关系。结果选取2013年3月至2016年3月本院收治的乳腺癌根治术患者160例,依据2年内复发转移情况分为复发组(n=50例)和未发组(n=110例),采用实时荧光定量聚合酶联反应法(RT-PCR)检测miRNA-23a表达水平,分析miRNA-23a表达水平与术后复发转移的关系。结果单因素分析结果显示,复发组和未发组肿瘤类型、直径、TNM分期、淋巴结转移、雌激素受体(ER)和孕激素受体(PR)、miRNA-23a表达水平比较 ...
周永安, 赵德庆
doaj  

Association of the polymorphis ms in STIM1 / ORAI1 / TRPC1 genes with the risk of calcium u rolithiasis [PDF]

open access: yes, 2015
目的:寻找基质相互作用因子1(Stromalinteractionmolecule1,STIM1)、钙释放激活钙通道调节分子1(Calciumrelease-activatedcalciummodulator1,ORAI1)和瞬时受体电位阳离子通道1(Transientreceptorpotentialcationchannel1,TRPC1)基因中与泌尿系含钙结石发病有关的易感位点及可能存在的单体型,探讨这三者基因多态性与泌尿系含钙结石发病的关联性。 方法:1、采用病例-对照研究策略 ...
林敬莱
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Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

急性髓系白血病微小残留病检测的临床意义

open access: yesZhongguo shiyan zhenduanxue, 2011
目的探讨微小残留病(MRD)检测在急性髓系白血病预测复发及指导治疗的临床意义。方法选择32例初治急性髓系白血病(除外M3)患者128份标本,利用多参数流式细胞术(FCM)进行微小残留病检测,CD45/SSC设门,选择2-4组四色抗体组合,从诱导化疗后第21天开始,每1-3个月监测一次。结果按照首次诱导治疗后第21天MRD水平将32例AML分为高(MRD>1×10-2)、中(1×10-2>MRD>1×10-4)、低(MRD1×10-2组2年复发率最高 ...
孔令环   +5 more
doaj  

Role of RNA helicase DHX32 in the metastasis of hepatocellular carcinoma [PDF]

open access: yes, 2016
肝细胞癌是全球性的高致死率肿瘤之一,血管侵犯和转移是肝细胞癌患者术后易复发及5年生存率较低的重要原因,有效的抗转移策略无疑能给患者带来福音。因此,越来越多的研究致力于探讨肝细胞癌发生侵袭转移的分子机制,并希望通过找到某些关键分子来干预肿瘤的转移。 DHX32是人类RNA螺旋酶的家族成员之一,最早被发现是在急性淋巴细胞白血病中低表达并参与淋巴细胞的分化,但是它的生物学功能尚未明确。我们课题组前期通过差异基因显示技术发现DHX32在结直肠癌中表达上调,功能研究结果显示DHX32与结直肠癌细胞的增殖 ...
胡情
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework

open access: yesConservation Biology, EarlyView.
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift   +8 more
wiley   +1 more source

Research of diagnostic biomarkers in Breast cancer and Gastric cancer [PDF]

open access: yes, 2013
自生物标志物(biomarker)这一概念提出以来,肿瘤生物标志物(tumorbiomarker,TBM)在基础医学领域的研究已成为热点。本文基于大量的临床病理样本,利用免疫组织化学、甲基化芯片分析、实时荧光定量PCR等技术,研究乳腺癌、胃癌预后诊断的生物标志物,为疾病的治疗提供新的思路和靶点。 我们利用免疫组织化学,调查了酪氨酸磷酸酶Shp2和它的伴侣蛋白Gab2在141例乳腺浸润性导管癌中的表达,并分析了他们与临床病理学特征的相关性,发现Gab2蛋白表达与病人的年龄存在显著相关性 ...
陈宝珍
core  

Emerging applications of large language models in ecology and conservation science

open access: yesConservation Biology, EarlyView.
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides   +5 more
wiley   +1 more source

动态监测微小残留病对B-ALL预后的临床意义

open access: yesZhongguo shiyan zhenduanxue, 2013
目的探讨微小残留病(MRD)监测在B急淋(B-ALL)复发预测及指导治疗中的临床意义。方法选择2008年1月到2012年7月32例初治急性B淋巴细胞白血病160份骨髓标本,利用四色多参数流式细胞术(FCM)进行微小残留病检测。以CD45/SSC设门,选择2-3组四色抗体组合,从诱导化疗第33天开始,每1-3个月监测MRD一次,动态监测MRD变化与白血病复发的关系。结果按照诱导治疗第33天的MRD水平分成三组,高(MRD>1×10-2),中(1×10-2≥MRD≥1×10-4),低(MRD10 ...
孔令环   +4 more
doaj  

Effect of multi-devascularization combined with Curcumin perfusion in the treatment of hepatic VX2 carcinoma in rabbit and on the residual carcinoma angiogenesis [PDF]

open access: yes, 2015
目的:研究姜黄素和肝脏周围防粘连隔离膜包裹对经肝动脉、门静脉栓塞治疗VX2肝癌兔的肝功能和生存期的影响;碘化油栓塞肿瘤血管后的残癌组织内血管新生旺盛,本实验探讨姜黄素和肝周防粘连隔离膜包裹对栓塞后残癌组织血管新生的影响。 方法:40只新西兰大白兔随机分成4组,开腹接种法建立VX2肝癌模型。两周后开腹行肝动脉、门静脉置管术,其中B组、D组手术置管同时行肝周防粘连隔离膜包裹隔离术。手术一周后通过留置化疗泵给药,A组、B组:单纯碘化油栓塞剂,C组、D组:姜黄素和栓塞剂混合乳剂。即A组:肝动脉、门静脉置管 ...
徐政
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