Results 31 to 40 of about 25,254 (214)

糖尿病、冠心病患者ABCA1基因R219K多态性的频率分布特点

open access: yesZhongguo shiyan zhenduanxue, 2011
目的旨在探讨我国北方地区汉族人ABCA1基因R219K多态性的频率分布特点,对血脂水平的影响,及其与冠心病、糖尿病和糖尿病合并冠心病的关系。方法采用改良碘化钠法提取基因组DNA,聚合酶链反应限制性片段长度多态性(PCR-RFLP)法分析ABCA1基因R219K多态性。结果正常对照组ABCA1基因R219K多态性RR、RK、KK基因型频率、R等位基因频率、K等位基因频率分别为28.5%、48.6%、22.9%、52.8%、47.2%;糖尿病组分别为29.6%、63.9%、6.5%、61.5%、38.5 ...
许慧, 彭浩, 蒋莹
doaj  

Study on Multicolor Melting Curve Analysis-based Approaches for the Detection of Gene Polymorphisms Related to Pharmacogenomics [PDF]

open access: yes, 2017
个体间药物响应的差异性长期困扰着临床,不同病人对同样剂量的同种药物所表现出的疗效和毒副作用往往不同。药物基因组学研究表明,基因多态性对个体药物响应差异起主导作用。伴随药物基因组学的深入研究,药物基因组生物标记物也不断被发现。基因检测是实现个体化用药的重要手段,通过检测相关基因多态性,可指导临床个体化用药,从而提高药物疗效和降低药物不良反应。本文将多色探针熔解曲线分析技术用于药物代谢酶基因CYP2D6、DPYD,药物转运体基因SLCO1B1,药物作用靶点基因ADRB1、APOE、ANKK1 ...
赖小芳
core  

Synthesizing Empirical Research on Learner Metacognition in Second Language Writing

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Despite considerable research interest in learner metacognition in second language (L2) writing, there is not yet a review that synthesizes the existing empirical findings and discusses their implications. To fill the void, this systematic review synthesized 39 empirical studies on learner metacognition in L2 writing and examined their salient
Chen Li, Icy Lee, Zhicheng Mao
wiley   +1 more source

ATP敏感性钾离子通道基因多态性与冠心病的相关分析

open access: yesZhongguo shiyan zhenduanxue, 2007
目的初步探讨中国汉族人群Kir6.2基因E23K多态性与冠心病(CHD)的关系。方法提取119例CHD患者和101例对照者的基因组DNA,采用PCR-限制性位点多态性(PCR-RSP)方法检测Kir6.2基因E23K多态性分布特点,同时检测各项血脂水平。结果湖北地区汉族人群中普遍存在该位点的基因多态性,在冠心病组中,G等位基因频率高于正常组(63.4%vs.56.9%,P>0.05);A等位基因频率低于正常组(36.6%vs.43.1%,P>0.05),两组间等位基因频率无显著性差异(P>0.05 ...
鲁敏翔
doaj  

ApoE基因多态性与动脉粥样硬化性脑梗死的相关性研究 [PDF]

open access: yes, 2018
目的分析ApoE基因与血脂和颈动脉粥样硬化程度的关系,进一步探讨ApoE基因与动脉粥样硬化性脑梗死的相关性。方法采用病例-对照研究的方法,收集厦门大学附属第一医院神经内科的95例缺血性脑卒中和65例非缺血性脑卒中住院患者。检测患者的ApoE基因型、血脂及颈动脉粥样硬化程度。结果与E2/E3比较,基因型E3/E3、E3/E4可能是缺血性脑卒中的保护因素;缺血性和非缺血性脑卒中患者在血浆TC、LDL-C、ApoB含量比较上均为E3/E4> E3/E3>E2/E3,且2组血浆LDL-C浓度在E3/E4与E2 ...
林志伟   +4 more
core  

From “Striving to Survive” to “Striving to Thrive”: A Narrative Inquiry Into a Student's Motivational Development via Translanguaging in EAP and EMI Contexts

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT While English‐medium instruction (EMI) and English for Academic Purposes (EAP) courses are designed to promote language and content learning, their prevailing English‐only approaches often undermine students’ learning motivation. Against this backdrop, translanguaging has gained recognition as an effective pedagogical practice to support ...
Yihai Wen, Fan Fang
wiley   +1 more source

Tau 基因 A0 多态性与中国人散发性帕金森病的相关性

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2004
【目的】为了探讨tau基因多态性与帕金森病的关系。【方法】本实验用PCR-片段长度多态性分析法检测了123例中国散发性帕金森病病人和114个正常对照的微管相关蛋白(tau)基因A0等位基因多态性。【结果】我们发现tau基因A0等位基因和A0/A0基因型在帕金森病组的出现率略高于对照组,分别为77.6%:74.1%和61%:57%,但无统计学意义。【结论】A0多态性与我国散发性帕金森病发病无关。
陶恩祥
doaj  

Molecular cloning, expression of heat shock protein 60 (HSP60) gene in Marsupenaeus japonicus and the association of its polymorphisms with thermal tolerance [PDF]

open access: yes, 2015
日本囊对虾(Marsupenaeusjaponicus)是我国重要经济养殖虾类,但其在南方地区存在着高温度夏死亡率较高的养殖难题。因此,急需了解日本囊对虾的耐热性状及耐温的分子机制,为此,我们开展了日本囊对虾MjHSP60基因的克隆、表达分析及其多态性与耐热性状相关性的研究,获得了如下主要结果: 1.MjHSP60基因克隆 在日本囊对虾MjHSP60cDNA序列基础上克隆到了该基因DNA全序列。日本囊对虾MjHSP60基因全长4055bp,结构与拟穴青蟹一致,均由8个外显子及7个内含子构成 ...
李丽君
core  

Exploring Chinese International Students’ Intercultural Competence in Australian University Classrooms: Challenges and Opportunities

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT With the increasing number of Chinese international students in Australian universities, intercultural competence has become a critical factor influencing their interactions with Australian tutors in university classroom settings. Existing research often examines students’ intercultural competence from a single‐method or single‐perspective ...
Jiangyu Han, Linda Tsung
wiley   +1 more source

基于多色探针熔解曲线分析技术的华法林个体化用药相关基因多态性快速检测方法 [PDF]

open access: yes, 2019
华法林是一种广泛使用的抗凝剂,其治疗窗口较窄,患者间达到抗凝所需剂量的变异性大。已有研究表明CYP2C9*3 (rs1057910)、CYP2C9 IVS3-65G>C (rs9332127)、VKORC1 c.-1639G>A (rs9923231)和CYP4F2*3 (rs2108622)的单核苷酸多态性(SNP)是影响中国人群华法林敏感性的主要遗传因素。该研究利用多色探针熔解曲线(MMCA)技术,建立可同时检测4个华法林敏感性基因多态性的单管PCR反应体系,可在2.5 h内完成检测,能检测低至50
夏众敏   +3 more
core   +3 more sources

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