Results 131 to 140 of about 23,098 (190)

Interaction of Human Papillomavirus 16 Major Capsid Protein L1 with HnRNP H1 and its functions [PDF]

, 2008
流行病学和相关研究证实人乳头瘤病毒(HPV)感染与尖锐湿疣、宫颈上皮瘤样增生和宫颈癌的发生关系密切。HPV感染机体后各种病毒基因的表达是受严格调控的，尤其是晚期基因，在未分化的细胞中几乎不表达，随着细胞分裂，病毒基因组随子细胞上移到表皮上层后，晚期蛋白的表达才被启动。这种分化依赖的晚期蛋白表达调控机制尚不明确。在以往的研究中发现，晚期蛋白在转录后水平受多种负调节元件的控制，其中早期多聚腺苷酸化信号(pAE)在晚期基因的转录后调控中起到核心的作用，它能使mRNA的转录提前终止 ...
孙媛媛
core  

大鼠儿茶酚抑素和心力衰竭的关系

Zhongguo shiyan zhenduanxue, 2013
目的对比心衰大鼠儿茶酚抑素水平与心功能指标,阐明二者之间的临床相关性。方法选取健康Wistar大鼠40只,采用腹主动脉缩窄法建立心衰模型,造模成功后从存活的心衰大鼠中随机选取20只作为心衰组,另选20只正常大鼠作为对照组。心衰组和对照组大鼠均行心脏彩超检查,测量左心室射血分数（LVEF）;检测血浆儿茶酚抑素（CST）及脑钠肽（BNP）水平。结果与对照组比较,心衰组大鼠LVEF值降低,BNP及CST值增大 ...
权玉兰, 孙明莉, 凡文博, 武国东   +3 more
doaj  

QPSK时域相干相位编码的OCDM新技术

Guangtongxin yanjiu, 2004
介绍了光码分复用（OCDM）的原理,分析比较了常用OCDM技术的优缺点,根据四相位序列中的A序列提出了用四相相移键控（QPSK）实现时域相干相位编码的OCDM新技术,并通过数值模拟计算选出了相关特性好的4个码组,用于实现Tbit/s超高速光纤传输实验系统,可大大提高传输速率及频带利用率.
艾兴芳, 元秀华, 陈雯菁
doaj  

猞猁肠道紊乱及其病因探讨

野生动物学报, 2015
为了研究猞猁肠道菌群结构,筛选出致病菌,南京市红山森林动物园采集了4只猞猁的粪便样本(2只正常,2只生病),事先对粪便进行预处理,用酚-氯仿法提取基因组DNA,以此作为PCR反应模板,扩增16S rRNA基因V3区,并将扩增产物进行DGGE电泳,以筛选粪便样本的差异菌群。通过Quantity one软件对DGGE图谱进行相似度分析,发现非疾病样本之间的相似度为0.92,疾病样本之间的相似度为0.96,非疾病和疾病样本之间的相似度为0.65～0.67 ...
赵玲玲
doaj  

[Effects of 40 Hz light flicker stimulation on hippocampal-prefrontal neural activity characteristics during working memory tasks in Alzheimer's disease model rats]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu S, Wang L, Li S, Xu G.
europepmc   +1 more source

[Enhancement of radiomics-based machine learning models for predicting efficacy of high-intensity focused ultrasound ablation of uterine fibroids using undersampling methods]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Cui Y, Feng M, Yao L, Yan J, Li W, Huang Y.   +5 more
europepmc   +1 more source

[Proteomics analysis of the effect and mechanism of ADSCs on full-thickness skin defects in diabetic rats]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Gu Y, Chen YZ, Wang SY, Song HY, Bai N.
europepmc   +1 more source

[Fabrication of high-degradation-efficiency molecularly imprinted photocatalysts and its selective degradation performance]. [PDF]

Se Pu
Zhang JJ, Song YF, Liu Y, Tian XM, Gao RX.   +4 more
europepmc   +1 more source

[Determination of tetracyclines in animal muscle tissues by ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chu K, Li JH, Wang QQ, Li XT, Wu S, Chen C.   +5 more
europepmc   +1 more source

[Application of an interpretable neural network framework based on the LASSO-proj algorithm for warfarin dose prediction]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhong C, Zhu Y, Gu X.
europepmc   +1 more source