Results 21 to 30 of about 8,158 (174)
Involvement of Abnormal MicroRNA Expression in the Mechanism of Drug Resistance with Acute Myeloid Leukemia [PDF]
目的:分析miRNA-98的表达异常在急性髓系白血病化疗耐药机制的作用,通过靶向过表达miRNA-98的表达水平探讨以miRNA-98为靶点增加化疗药物敏感性的可能性并分析其可能作用的机制。评价异常表达的血清miRNA-155是否可作为急性髓系白血病的预后标志。 方法:离体实验中,采用qRT-PCR方法检测K562和其耐药株K562/A02中miR-98、E2F1基因表达情况。通过瞬时转染miR-98mimic处理耐药细胞K562/A0248h后,通过qRT-PCR法检测miR-98表达情况;通过qRT-
黄英丹
core
Background: Inhibition of the Janus kinase pathway is an established treatment for allergic dermatitis. Objective: To evaluate the efficacy and safety of ilunocitinib for control of pruritus in dogs with allergic dermatitis in a randomised, double‐masked clinical trial.
Sophie Forster +5 more
wiley +1 more source
The new electrochemical DNA sensor for detection of Mycobacterium tuberculosis and its drug resistance gene [PDF]
耐药结核分枝杆菌,尤其是耐多药结核分枝杆菌的出现给结核病的检测和治疗带来了巨大的挑战,对人类健康产生了极大威胁。目前临床上常用的结核病的检测方法分别存在操作繁琐、仪器昂贵、耗时较长及易污染等不足。电化学DNA传感器是近几年发展起来的一种新型生物传感器,因其简单、灵敏、特异性强、易微型化等特点受到研究者的青睐,已被应用于多个领域的研究。然而电化学DNA传感器易受其他因素的干扰造成结果不稳定。实验前期构建的BSA单分子层控制组装界面为基础的电化学DNA传感器,有效地提高了体系的稳定性。本文在前期研究基础上 ...
李茜茜
core
Background – Canine superficial bacterial folliculitis (SBF) is a common recurrent condition with a growing requirement for culture and susceptibility as a consequence of increased antimicrobial resistance and antimicrobial stewardship. Different opinions persist about the ideal technique for culture sample acquisition, which varies with lesion ...
Jason B. Pieper +3 more
wiley +1 more source
热化疗逆转人肝癌细胞系BEL-7402/ADM多药耐药性的实验研究
目的 研究热化疗对多药耐药人肝癌细胞系BEL- 74 0 2 /ADM耐药性的影响并探讨相关的机制。方法 通过MTT法测定热化疗对多药耐药人肝癌细胞系BEL -74 0 2 /ADM耐药性影响;利用流式细胞仪检测多药耐药相关基因(MDR)的表达产物P糖蛋白(P- gp)、多药耐药相关蛋白(MRR)、谷胱甘肽转移酶(GSH/GST)的表达。结果 热化疗使多药耐药人肝癌细胞系BEL- 74 0 2 /ADM耐药性降低;P -gp、MRP和GSH/GST的表达均有所下降。结论 ...
王宁, 杨海山, 刘洁, 李玉
doaj
Nanodrug delivery in reversing multidrug resistance in breast cancer cells [PDF]
乳腺癌细胞产生多药耐药(Multidrugresistance,MDR)是乳腺癌化疗失败最主要的原因之一,深入研究拮抗或逆转乳腺癌多药耐药有着重要的理论和临床意义。紫杉醇(Paclitaxel,PTX)是目前临床上广泛应用的广谱抗癌药物。临床广泛使用的紫杉醇制剂(商品名“泰素”)毒副反应严重,超敏反应强烈,无明显靶向性,可诱发多药耐药,因此紫杉醇新制剂研究是当前国际国内的热点问题。 本文旨在研制出具有良好临床适应性、可逆转肿瘤多药耐药的紫杉醇纳米制剂,并使其具有磁靶向和光动力治疗的多重功能。首先 ...
王颖君
core
Abstract Background Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler +9 more
wiley +1 more source
Protein phosphatase 2A-B55δ enhances chemotherapy sensitivity of human hepatocellular carcinoma under the regulation of microRNA-133b [PDF]
目的:原发性肝细胞癌(hepatocellularcarcinoma,HCC)是我国公共卫生关注的热点问题之一,寻找增强HCC化疗敏感性的有效干预靶点具有重要意义。蛋白磷酸酶2A(proteinphosphatase2A,PP2A)是重要的肿瘤抑制因子;PPP2R2D基因编码的PP2A-B55δ亚基参与细胞周期有丝分裂调控。我们前期研究验证了PPP2R2D基因3’-非翻译区(3’-untranslatedregion,3’UTR)的+15G>C多态性位点受微小RNA-133b(microRNA-133b,
庄群瑛
core
Background – Malassezia pachydermatis (MP) is implicated in severe dermatitis and otitis externa (OE) of companion animals and recently gained attention for its increasing resistance to azole compounds. For this reason, developing novel therapeutic strategies is of great interest. In a previous work, we used reference yeast isolates to evaluate several
Costanza Spadini +11 more
wiley +1 more source
貉源致病性肺炎克雷伯氏菌对喹诺酮类药物耐药表型及耐药基因检测
为了检测貉源致病性肺炎克雷伯氏菌对喹诺酮类药物的耐药性与耐药基因携带情况并分析其相关性,通过K-B药敏纸片和PCR方法分别检测24株貉源致病性肺炎克雷伯氏菌对喹诺酮类药物耐药性与耐药基因。结果表明:24株貉源致病性肺炎克雷伯氏菌呈现多重耐药性,对左氧氟沙星、恩诺沙星、环丙沙星、诺氟沙星耐药性为70.8%—79.2%,耐4种抗生素的菌株有16株,占分离菌株的66.7%;24株貉源致病性肺炎克雷伯氏菌的耐药基因gyrB、oqxA、parC、parE、oqxB、ompF检出率在70.8%以上 ...
张召兴 1 +1 more
doaj

