Results 41 to 50 of about 10,764 (168)
Background – Sporotrichosis is a chronic, mycotic infection caused by fungi of the genus Sporothrix. Zoonotic sporotrichosis occurs mainly through S. brasiliensis transmission, resulting from the organism's traumatic introduction via scratches or bites, or contact with exudate from contaminated cats.
Steffanie Amadei +6 more
wiley +1 more source
【目的】研究成人骨髓间质干细胞(MSC)基本生物学特性。【方法】采用Ficoll-Paque 淋巴细胞分离液分离成人 MSC , 体外扩增, 比较不同培养基和血清含量对MSC 生长的影响, 流式细胞仪检测MSC 表面抗原表达。【结果】成人骨髓间 质干细胞在体外扩增原代可获得(5 ~ 6)×105 个细胞, 15 代可获得(3~ 4)×1012个细胞, 随着传代次数的增加, 细胞的增殖能 力下降。L-DMEM 培养基有利于细胞的培养扩增。细胞流式细胞仪检测结果显示CD29、CD44 、CD59 ...
张丽蓉, 李 艳
doaj
ES细胞源表皮样干细胞与胶原海绵体外构建组织工程化皮肤 [PDF]
【目的】 探讨以ES细胞源表皮样干细胞构建组织工程皮肤的方法,为构建新的组织工程皮肤奠定基础。【方法】 先把成纤维细胞放置于胶原海绵真皮支架内,体外培养2d,再放置ES细胞源表皮样干细胞,体外培养3d,观察其形态和进行免疫组化检测。【结果】 成纤维细胞与ES细胞源表皮样干细胞均在真皮支架内黏附,免疫组化表明ES细胞源表皮样干细胞仍呈Bl整合素强阳性和CK15、CK19阳性。【结论 ...
李海标, 程树军, 黄锦桃
core
Urban agriculture is in an intermediate state between traditional urban green spaces and conventional rural farms in terms of environmental impacts, so that its contribution to urban sustainability requires complementarity with other green spaces. Abstract As cities expand, they encroach on agricultural land, impacting food production and natural ...
Zeyu Li +8 more
wiley +1 more source
目的构建携带CDCP1胞外段基因的原核表达载体。方法以A549的mRNA为模板,应用所设计的引物通过RT-PCR法扩增CDCP1胞外段基因;将PCR产物与pGEX-KG载体连接,获得重组质粒pGEX-KG/CDCP1;经双酶切、PCR及DNA序列测定进行鉴定;IPTG诱导表达。结果①RT-PCR扩增得到约270bp大小的CDCP1胞外段基因目的片段;②目的片段正确插入到pGEX-KG中;③经IPTG诱导表达,可见在相对分子质量约35kD处出现明显的诱导蛋白条带,与预期一致 ...
李玲霞 +9 more
doaj
The protective function of Connexin43 on adipose derived stem cell when exposed to tert-butyl hydroperoxide induced injury [PDF]
背景及目的:通过基因修饰的方法实现对干细胞生物学特性的改造,是保证移植细胞存活及增殖能力的重要手段,也是减少干细胞移植相关心律失常事件的重要手段。既往的研究证实通过上调Cx43的表达,可产生抗心律失常作用。本研究将明确Cx43基因转导ADSC可否提高T-booh损伤后ADSC细胞的存活率 方法:构建Connexin43和GFP双基因共表达的重组慢病毒载体质粒,脂质体转染法包装产生慢病毒颗粒。携带目的基因病毒颗粒感染ADSCs构建工程干细胞,运用流式细胞仪、荧光显微镜、Westernblotting、RT-
陈晓敏
core
Graphical abstract AbstractLightweight, high‐strength, and heat‐resistant protective structures have consistently been crucial for applications in extreme environments, such as aerospace, semiconductors, and nuclear power industries. Multilayered TC4/TB8 titanium (Ti) laminates, inspired by the heterostructures of natural biological shells, were ...
Tian‐Le Li +7 more
wiley +1 more source
目的: 检测细胞培养中支原体的污染, 建立支原体通用的 PCR 方法。方法: 根据已出版的序列设计并合成一对 支原体(柔膜体纲) 16S rRNA 基因组特异引物。对实验室所存的12 种支原体、大肠杆菌、变形杆菌及无支原体污染的组织培养 细胞进行了 PCR 扩增。以 PCR 与分离培养比较检测了 33份细胞培养标本。结果: 12种支原体均出现了约 620 bp左右的特异 性扩增带,敏感性为 100~ 1 000个支原体细胞, 且常见的 6种细胞培养污染支原体的扩增片段均能被 H indⅢ切成 280 与
赖小敏 方国源 李彩霞 王传恩
doaj
针对眼表上皮疾病的基础及临床方面进行了系统研究,包括角膜上皮干细胞的生理,眼表免疫,眼表上皮细胞黏蛋白表达及功能,眼表鳞状上皮化生的发病机制,干眼的诊断与治疗,角膜组织工程,新生血管性眼病的发生机制与治疗等 ...
刘祖国, 刘靖, 李炜, 陈文生
core
Effectiveness of protected areas in the Caucasus Mountains in preventing rangeland degradation
Abstract As land use intensifies globally, it increasingly exerts pressure on protected areas. Despite open, nonforested landscapes comprising up to 40% of protected areas globally, assessments have predominately focused on forests, overlooking the major pressures on rangelands from livestock overgrazing and land conversion.
Arash Ghoddousi +12 more
wiley +1 more source

