Results 41 to 50 of about 15,301 (169)
Conservation Biology, Volume 38, Issue 4, August 2024.Abstract Eradicating invasive predators from islands can result in substantial recovery of seabirds, but the mechanisms that drive population changes remain poorly understood. Meta‐analyses have recently revealed that immigration is surprisingly important to the recovery of philopatric seabirds, but it is not known whether dispersal and philopatry ...
Jeremy P. Bird +2 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2017 目的分离鉴定多重耐药性铜绿假单胞菌,制备铜绿假单胞菌感染的小鼠烫伤模型。方法常规方法分离纯化铜绿假单胞菌,并经16sRNA序列分析鉴定铜绿假单胞菌;平板稀释法测定分离菌株对18种抗菌药物的耐药性;应用烫伤仪确定小鼠对100℃下不同烫伤面积和烫伤时间的耐受情况,确定最佳烫伤时间和面积建立小鼠烫伤模型;对小鼠烫伤模型皮下感染不同浓度的铜绿假单胞菌,确定72h内全部小鼠死亡的细菌最小致死量,最小致死量感染组小鼠死亡后立即应用平板稀释法检测肝和脾内细菌荷载量。结果分离鉴定得到5株多重耐药性铜绿假单胞菌 ...
郝羽翀 +3 more
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The establishment of new organ transplant models for immune rejection and the exploration of the mechanisms of transplantation immunity [PDF]
, 2015 目的：建立两种新型的器官移植排斥反应模型，即树鼩异种心脏移植模型以及使用套管法建立新型小鼠主动脉移植模型，并分别对这两种器官移植模型中的异种移植免疫排斥机制和慢性排斥反应机制进行初步探索。 方法：1.采用腹部异位心脏移植的方法建立树鼩到SD大鼠，SD大鼠到树鼩的异种心脏移植模型，对比树鼩与大鼠的解剖数据，分析模型的可行性，观察移植心脏的生存期及病理变化，观察模型的免疫排斥反应类型，进行免疫组化、微量淋巴毒实验、混合淋巴实验以进行机制的初步探讨。2.利用套管法将供体BALB ...
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Veterinary Dermatology, Volume 35, Issue 4, Page 400-407, August 2024.Background – Fine bubble (FB) bathing has shown benefits on a mouse model of atopic dermatitis (AD). However, its efficacy in dogs with AD remains to be evaluated. Objective – This study aimed to assess the clinical effectiveness of FB bathing in dogs with AD.
Norihito Taguchi +3 more
wiley +1 more source
Establishment of An Effective System to Develop Avian Polyclonal Antibodies and Its Primary Application [PDF]
, 2016 小鼠单克隆抗体技术已成为生物医药领域不可或缺的研究工具，在疾病的诊断和治疗领域也得到广泛应用。然而，由于小鼠自身免疫系统的局限，某些抗原或表位，特别是同为哺乳动物的人体抗原在小鼠体内可能因为种属相近而不易产生好的免疫应答，给制备相应的小鼠单克隆抗体造成一定的困难。因此，有必要基于其它种属动物开发新的抗体制备技术。禽源抗体技术也称卵黄抗体技术（简称IgY技术），是用免疫原刺激禽类动物，产生相应的特异性抗体，该抗体会转运、储存在卵黄中，经特殊的提取技术，可从卵黄中获得大量特异性的多克隆抗体的一种抗体制备技术。
康雅虹
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Conservation Biology, Volume 38, Issue 3, June 2024.Abstract Reintroduced populations are typically considered to progress through establishment, growth, and regulatory phases. However, most reintroduction programs do not monitor intensively enough to test this conceptual model. We studied population indices derived from track activity of 4 threatened species (greater bilby [Macrotis lagotis], burrowing
Katherine E. Moseby +3 more
wiley +1 more source
含脐血MSCs 体系扩增后的脐血重建 NOD/SCID小鼠造血的研究
Zhongshan Daxue xuebao. Yixue kexue ban, 2005 【目的】探讨含人脐血(umbilical cord blood，UCB)来源的间充质干细胞(mesenchymal stem cells，MSCs)联合造血生长因子(hematopoietic growth factors，HGFs)体系扩增后的脐血造血细胞在NOD／SCID小鼠体内植入及重建小鼠造血的能力。【方法】①用含女性胎儿脐血MSCs(UCBMSCs)及HGFs组合的无血清扩增体系体外扩增男性新生儿UCB CD34~+细胞。②收获扩增第6天的UCB细胞，经尾静脉移植给亚致死量照射后的雌性NOD ...
周敦华 +8 more
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Relationship between abnormal symptoms of Prader-Willi syndrome model --Snord116 deletion mice and Ghrelin signaling pathway [PDF]
, 2016 Prader–Willi综合症是以进食异常和血液Ghrelin异常升高为特征的遗传肥胖症。其病因是Snord116SnoRNA群的表达缺失。我们构建的Snord116del小鼠模型表现出贪食和血液Ghrelin升高等PWS症状。此次研究中，我们繁育野生型（WT）、Snord116del（SW）、Ghrl-/-（WG）、Ghsr-/-（WR）小鼠，并制备[Snord116del，Ghrl-/-]（SG）和[Snord116del，Ghsr-/-]（SR）双敲除小鼠，对其生长发育 ...
甘利芬
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Veterinary Dermatology, Volume 35, Issue 3, Page 325-336, June 2024.Background – Norway spruce (Picea abies) resin‐based products are used in human medicine. A resin‐based otic rinse also could be useful in supportive care of canine otitis externa (COE), yet information on its antimicrobial effect against canine pathogens or ototoxicity is lacking.
Elina Aimo‐Koivisto +5 more
wiley +1 more source
12-脂氧化酶基因敲除对1型糖尿病肾病小鼠肾小球内纤维连接蛋白表达的影响
Zhongguo shiyan zhenduanxue, 2011 目的探讨12-脂氧化酶（12-lipoxygenase,12-LO）对1型糖尿病肾病小鼠肾小球内纤维连接蛋白（Fibronectin,FN）表达的影响。方法用链脲佐菌素（Streptozotocin,STZ）诱导1型糖尿病模型。野生型和12-LO基因敲除C57BL/6小鼠随机分成4组:野生型对照组;12-LO基因敲除组;野生型糖尿病组;12-LO基因敲除糖尿病组。采用RT-PCR和免疫组化方法分别检测肾小球内FN mRNA和蛋白表达的变化。结果与野生型对照组比较,野生型1型糖尿病小鼠血糖 ...
李龙镐 +7 more
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