Results 21 to 30 of about 26,684 (165)

Distribution of HPV genotypes of cervical lesions patients in Zhangzhou district [PDF]

open access: yes, 2017
目的:了解漳州地区人乳头瘤病毒(human papilomavirus,HPV)基因型与宫颈病变的关系.方法:应用基因芯片技术对200例宫颈病变患者石蜡组织标本进行24种HPV基因型检测,以组织病理学诊断作为宫颈病变确诊的金标准.结果:(1)200例标本中,HPV阳性率为51.50 %;检出20种基因型,常见基因型依次是HPV16(27.97 %)、HPV18(8.39 %)、HPV58(8.39 %)、HPV59(7.69 %)、HPV54(7.69 %);其中低危型HPV占16.08 ...
唐忠辉   +5 more
core   +1 more source

Drivers of bat researchers’ intent to adopt field hygiene practices

open access: yesConservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman   +6 more
wiley   +1 more source

Population genetic structure and phylogentic analysis for Morone americana in Delaware Bay of United States [PDF]

open access: yes, 2016
美洲狼鲈(Moroneamericana,Gmelin,1789)隶属于鲈形目(Perciformes),狼鲈科(Moronidae),狼鲈属(Morone),别名美洲白鲈、白石鮨。美洲狼鲈是在美国东海岸浅海区域十分常见的一种溯河洄游鱼类,每逢春末夏初,生活于近海和河口区域的美洲狼鲈便溯河洄游至河流中上游产卵繁衍。美洲狼鲈也经常被用作海区污染程度的指示种。鉴于美洲狼鲈广泛的分布范围以及巨大的种群数量,其十分适合作为近岸洄游性鱼类群体研究的模式种类。同时,其在检测环境污染方面也具有主要作用 ...
边力
core  

Calculation of Likelihood Ratios for Incest Cases Using IBD Patterns [PDF]

open access: yes, 2023
Objective To calculate the likelihood ratios of incest cases using identity by descent (IBD) patterns. Methods The unique IBD pattern was formed by denoting the alleles from the members in a pedigree with a same digital.
De-jian LÜ
core   +1 more source

天津地区丙型肝炎病毒基因分型的研究

open access: yesZhongguo shiyan zhenduanxue, 2016
目的研究天津地区丙型肝炎病毒(HCV)基因型的分布。方法收集HCV感染者的HCV基因分型、性别、年龄、临床诊断等临床资料,分析HCV基因型在人群中的分布,以及与临床资料的相关性。结果天津地区最常见的HCV基因型是1b型,占人群比例77.88%;其次是2a型,占人群比例20.07%。在肝炎患者,不同基因型感染者的平均年龄之间存在差异。在肝硬化患者,不同性别的HCV基因型分布存在差异。结论天津地区HCV基因型以1b型最为常见。
武玉晶   +4 more
doaj  

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

籽粒苋不同富钾基因型根际钾营养与根系特性研究

open access: yesShuitu Baochi Xuebao, 2004
在缺钾土培和水培条件下,研究了籽粒苋不同基因型根际和非根际土壤速效钾、缓效钾和全钾含量的变化,以及根际微生物数量、根系主要分泌物、根系质子分泌量和根系CEC的变化。结果表明,籽粒苋根际土壤速效钾和缓效钾含量明显高于非根际土壤,且在根际形成钾的相对富集区,富钾基因型R104和K12根际钾的富集能力明显高于一般基因型;籽粒苋根际土壤的全钾含量却低于非根际土壤,富钾基因型的降低幅度大于一般基因型。富钾基因型根际微生物数量和根系分泌能力显著高于一般基因型 ...
李廷轩 马国瑞
doaj   +2 more sources

心肌梗死患者血管紧张素原基因T174突变检测的临床意义

open access: yesZhongguo shiyan zhenduanxue, 2010
目的探讨血管紧张素原基因(AGT)T174在人群中的分布、与临床心肌梗死的相关性。方法对入选的心肌梗死患者组及健康对照组,用聚合酶链反应(PCR)、限制性片段长度多态性(RFLP)分析,对群体患者和群体健康对照组进行基因分型,统计分析。结果 AGT基因型频率及等位基因频率分布比较均匀;心肌梗死发生与民族、性别、年龄无特异相关性。174MM型和M 174等位基因的频率患者组显著高于健康对照组,携带突变型MM基因型的个体比野生型TT者患心肌梗死的危险性高5.667倍,基因突变与心肌梗死发生相关。结论 ...
宁树成   +3 more
doaj  

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

Development of Real-time PCR Genotyping [PDF]

open access: yes, 2004
本论文围绕实时PCR基因分型的探针基因分型和引物基因分型两个关键技术展开了研究,研究工作主要包括新型荧光双链置换探针实时PCR基因分型技术的研究,以及新型硫代磷酸化修饰的引物结合高保真DNA聚合酶的等位基因特异扩增的基因分型技术的研究。 第一部分,提出了新型荧光双链置换探针实时PCR基因分型的新技术,以β-地中海贫血中国地区常见的5种突变为研究对象,建立了新型荧光双链置换探针实时PCR基因分型的检测体系,系统考察了新型荧光双链置换探针检测的灵敏度和特异性、以及影响探针灵敏度和特异性的关键因素 ...
程金平
core  

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