Results 1 to 10 of about 6,692 (157)
实时荧光定量PCR检测原发性肝癌中PRL-2基因的表达 [PDF]
【目的】建立TaqMan实时荧光定量逆转录聚合酶链反应(RT-PCR)法检测肝细胞再生磷酸酯酶2(PRL-2)mRNA表达水平,并应用该法检测原发性肝细胞癌中PRL-2基因的表达。【方法】构建含PRL-2基因开放阅读框架的T载体.制作标准曲线。提取手术切除12例人肝癌、门静脉癌栓(PVTT)和癌旁组织总RNA并逆转录为cDNA。应用实时荧光定量PCR法观察人肝细胞癌组织和门静脉癌栓及癌旁组织中PRL-2的表达水平。【结果】线性检测范围达5个数量级,最低检测下限为1×10^2拷贝,最高检测上限为1×10 ...
程超 +4 more
doaj +2 more sources
【目的】对粘结托槽前后菌斑中变形链球菌数量的差异进行定量研究。【方法】采用自身对照法。每个患者分两阶段取样:粘结托槽前和粘结托槽后4周;取样牙位包括上4个切牙。设计针对变链菌的特异性引物和MGB探针,应用实时荧光定量PCR技术测定每毫克菌斑样本中变链菌的数量。【结果】同一患者粘托槽前后变链菌数值分别为5.31×10^6/mg和6.35×10^6/mg,其差别有统计学意义(P=0.0025)。【结论】患者粘结托槽后,菌斑中变链菌密度的明显升高,可能是正畸治疗中自垩斑发生率较高的原因之一。
艾虹 +5 more
doaj +2 more sources
Effects of Nicotinamide on Growth and Secondary Metabolite Synthesis of Monascus purpureus(烟酰胺对紫色红曲菌生长和次级代谢产物合成的影响) [PDF]
Monascus purpureus M1 with stable yield of Monacolin K preserved in the Beijing Engineering and Technology Research Center of Food Additive, was used as the starting strain, the effects of nicotinamide addition on the secondary metabolites of Monascus ...
ZHANG Han(张函) +6 more
doaj +1 more source
Abstract The effectiveness and safety of electroacupuncture (EA) for constipation have been confirmed by numerous clinical studies and experiments, and there are also studies on the efficacy of EA for Parkinson's disease (PD) motor symptoms. However, there are few researches on EA for PD constipation.
Li‐Zhe‐Xiong Song +8 more
wiley +1 more source
Background Thymic stromal lymphopoietin (TSLP) plays a key role in the development of allergic inflammation. Little is known about possible triggers of equine TSLP expression. Hypothesis To investigate TSLP expression in equine insect bite hypersensitivity (IBH) skin lesions.
Iva Cvitas +4 more
wiley +1 more source
Evaluation of convective PCR for the detection of influenza A virus [PDF]
目的评价热对流PCR应用于口岸现场甲型流感病毒快速检测的效果。方法设计热对流PCR的引物和探针,用于甲型流感病毒的检测。用甲型和乙型流感病毒毒株和入境发热人员的鼻咽拭子样本验证热对流PCR的检测灵敏度、特异性及稳定性,并与市售商品化实时荧光定量PCR试剂比较检测甲型流感病毒的效果。结果通过对8株甲型流感病毒和1株乙型流感病毒毒株进行检测,热对流PCR对H1、H3及H5亚型的甲型流感病毒毒株的检测下限为0.001~0.005HAU,具有较好的检测广谱性,且不与乙型流感病毒发生交叉反应 ...
张师音 +6 more
core +1 more source
Enhancement of hypothalamic STAT3 acetylation by nuclear receptor Nur77 dictates leptin sensitivity [PDF]
孤儿核受体Nur77(也称为TR3)是核受体家族NR4A的一员,在脂肪、肝脏和骨骼肌组织的代谢调控中发挥重要功能,因此被认为是一种新型的治疗代谢性疾病的药物靶点。本文研究中我们发现,在正常生理条件下,随着年龄的增长,Nur77基因敲除的小鼠体重明显高于野生型小鼠。摄食的增多和能量消耗的减少是Nur77基因敲除小鼠体重上升的直接原因。棕色脂肪组织耗能产热功能的衰退也促使了脂肪的积累。原位杂交和实时荧光定量PCR结果显示,Nur77能够正调控瘦素leptin下游厌食多肽POMC的表达。脑室内注射leptin,
肖倩
core +1 more source
目的 分析质谱快速鉴定法、选择肉汤培养后涂平板法、实时荧光PCR法和胶体金免疫层析法在孕妇B群链球菌(GBS)定植筛查中的应用效果。方法 同时采用质谱快速鉴定法、选择肉汤培养后涂平板法、细菌培养法、实时荧光PCR法和胶体金免疫层析法对278例孕35-37周孕妇阴道下端或肛周拭子进行GBS筛查。以细菌培养法作为金标准方法,评价质谱快速鉴定法、选择肉汤培养后涂平板法、实时荧光PCR法和胶体金免疫层析法的诊断性实验性能。结果 细菌培养法阳性率9.4%,选择肉汤培养后涂平板培养法阳性率10.4 ...
周新荣 +4 more
doaj
Changes on Mitochondrial DNA Content in Non-small Cell Lung Cancer [PDF]
Background and objective It has been proven that the mitochondrial DNA (mtDNA) mutations and content change were associated with increasing risk of tumorigenesis. MtDNA content is significantly reduced in most substantive tumors. The aim of this study is
Hongmei WANG, Jigang DAI
core
ABSTRACT Objectives First, to determine the incremental yield of whole‐genome sequencing (WGS) over quantitative fluorescence polymerase chain reaction (QF‐PCR)/chromosomal microarray analysis (CMA) with and without exome sequencing (ES) in fetuses, neonates and infants with a congenital anomaly that was or could have been detected on prenatal ...
N. Shreeve +6 more
wiley +1 more source

