Results 41 to 50 of about 16,526 (215)

An assessment of future rewilding potential in the United Kingdom

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Restoring ecosystems is an imperative for addressing biodiversity loss and climate change, and achieving the targets of the Kunming–Montreal Global Biodiversity Framework. One form of restoration, rewilding, may have particular promise but may also be precluded by requirements for other forms of land use now or in the future.
C. Brown, R. Prestele, M. Rounsevell
wiley   +1 more source

肝豆状核变性分子生物学研究

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2001
【目的】探讨中国人肝豆状核变性(WD)的分子发病机制和基因诊断的方法。【方法】应用基因工程技术对WD 进行了10 年的分子生物学研究。【结果】①WD 的基因定位研究:通过RFLP 及微卫星多态性分析, 应用两位点及多位点连 锁软件, 建立了中国人WD 基因在D13q14 .2 -3区域的精细遗传连锁图谱, 从而首次对中国人WD 基因进行了精确定位;②WD 基因突变研究:应用PCR-SSCP 及DNA 测序技术, 对39 个家系45 名WD 患者进行该致病基因的21 个外显子突变筛选, 发现 WD
徐评议   +4 more
doaj  

分枝杆菌利福平耐药基因rpoB高通量突变文库的构建

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
目的建立利福平耐药基因rpoB高通量突变文库。方法通过同源重组和L5 attB噬菌体整合位点交换构建耻垢分枝杆菌ΔrpoB attB::rpoB菌株;基于L5 attB质粒交换系统和抗性选择培养基,挑取48个克隆以验证质粒替换的效率;针对利福平耐药决定区(RRDR)区域内以每3个碱基为单位设计简并性引物,通过PCR扩增获得该区域81个碱基的全覆盖式突变文库;文库片段与载体进行无缝克隆转化到大肠杆菌中形成大肠杆菌突变文库;基于质粒交换原理,将突变质粒库转化至耻垢分枝杆菌ΔrpoB attB ...
陈勇, 冯思源, 徐霖, 田国宝
doaj  

Studies of Functions and Mechanisms of JMJD2D in the Development of Colorectal Cancer [PDF]

open access: yes, 2015
结直肠癌(Colorectalcancer,CRC)是世界范围内的高发性恶性疾病,其发病率和死亡率呈逐年上升趋势,因而引起广大科研工作者对其发生发展的作用机制进行深入研究。文献报导称,在绝大多数结直肠癌的发生发展过程中都伴随着经典Wnt信号通路的异常激活。该通路激活后,其中最重要的效应分子之一β-Catenin入核与TCF/LEF家族成员结合,激活下游促癌基因转录表达,从而促进结直肠癌的发生发展。 组蛋白赖氨酸特异性去甲基化酶4D(Lysine-specificdemethylase4D,KDM4D ...
余力
core  

Longitudinal evaluation of the cutaneous and rectal microbiota of German shepherd dogs with perianal fistulas undergoing therapy with ciclosporin and ketoconazole

open access: yesVeterinary Dermatology, Volume 35, Issue 4, Page 375-385, August 2024.
Background – Perianal fistulas are painful ulcers or sinus tracts that disproportionately affect German shepherd dogs and are proposed as a spontaneous animal model of fistulising Crohn's disease. Objectives – To characterise the rectal and cutaneous microbiota in German shepherd dogs with perianal fistulas and to investigate longitudinal shifts with ...
Christine L. Cain   +6 more
wiley   +1 more source

一例重型斑驳病患者的KIT基因突变检测

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2017
【目的】对1例斑驳病小家系中的先证者进行致病基因KIT和SLUG(SNAI2)编码序列的突变检测,寻找致病性 突变。【方法】应用PCR扩增KIT和SLUG基因编码区及外显子-内含子交界区,对PCR产物进行直接测序。在50例正常对 照中进行新突变的测序分析,以排除多态性。【结果】家系先证者SLUG基因检测未发现异常,KIT基因检测到1个国际数据 库中尚未报道的点突变c.860T>A(p.V287E),患者父母均未检测到此突变。该突变位于KIT基因编码蛋白的细胞外配体结 合区域 ...
邓伟平, 陈敏华, 戴少霞
doaj  

基于全外显子组测序对头皮皮脂腺癌的基因分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
目的在全外显子组水平对比头皮皮脂腺癌(SC)和头皮皮脂腺瘤(SA)的相关致病性基因突变的差异。方法对经过病理诊断的头皮SC和SA样本各1例,利用 Illumina HiSeq 2500平台进行全外显子组测序(WES)。筛选可疑的单核苷酸变异位点,进行突变的保守性和功能分析。利用SciClone软件来追踪亚克隆进化可以得到每例肿瘤样本的克隆性图谱信息。通过MutSigCV软件筛选得到高频显著基因,将体细胞变异与已知驱动基因进行比较,筛选出该肿瘤样本中的已知驱动基因。结果经过对比发现,与头皮SA相比 ...
郑奔容   +5 more
doaj  

Genetic analysis and gene mapping of panicle branches stay-green trait in rice [PDF]

open access: yes, 2016
水稻是重要的粮食作物之一,全球一半以上的人口以大米为主食。随着世界人口的增长,人们正面临着越来越严重的粮食危机。如何增加水稻产量一直是作物育种以及植物学研究的重要目标。近年来水稻遗传育种工作者发现了一些成熟期叶片的叶绿素不降解或仅少量降解而使叶片仍保持绿色的持绿型水稻品种,研究发现其叶片持绿性状多数属多基因控制的数量遗传,少数属隐性主效基因控制的质量性状遗传,相关基因大多已被鉴定及克隆。迄今为止,尚未见穗枝梗持绿性状的研究报道。佳辐占系本课题组育成的优质高产早稻品种,已在生产上大面积推广应用 ...
王永杰
core  

‘Forgotten crises’ as forgotten sites of knowledge production for building lasting peace

open access: yesDisasters, Volume 48, Issue S1, July 2024.
Abstract ‘Forgotten crises’ constitute a permanent background to any present and future global humanitarian and development efforts. They represent a significant impediment to promoting lasting peace given concurrent catastrophes exacerbated by climate change. Yet, they are routinely neglected and remain unresolved.
Maria Tanyag
wiley   +1 more source

A path to human‐raccoon dog harmony: Identifying factors influencing the tolerance of urban residents in Shanghai towards a neglected species

open access: yesPeople and Nature, Volume 6, Issue 3, Page 1277-1287, June 2024.
Abstract Human‐wildlife interactions become increasingly common in urban areas across all continents and ecosystem types. Depending on the context, human‐wildlife interactions can be categorized as harmonious, neutrality, or in conflict and raises cultural, economic and ecological challenges in maintaining urban biodiversity.
Qianqian Zhao   +7 more
wiley   +1 more source

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