Results 31 to 40 of about 463,559 (166)
目的建立人肝癌多药耐药细胞系并研究其耐药特性及机制。方法应用人肝癌细胞株HepG2,采用阿霉素(ADM)浓度梯度递增诱导法,建立多药耐药细胞系HepG2/ADM。相差显微镜观察细胞,用MTT法检测该耐药细胞株对多种化疗药物的多药耐药性,采用流式细胞术检测该耐药细胞表面多药耐药基因(mdr)的表达产物P糖蛋白(P-gp)、多药耐药相关蛋白(MRP)及谷胱甘肽硫转移系统(GSH/GST)的表达情况,应用RT-PCR检测MDR、MRP基因表达水平。结果HepG2/ADM对多种抗癌药物产生耐药 ...
王宁, 李玉, 刘洁
doaj
目的 探讨吉林省2018年到2020年4个地市178名结核病患者结核分枝杆菌药物一线及二线敏感性检测结果,为吉林省结核病防治策略的制定提供依据。方法 根据Microsoft Excel 2013软件建立数据库,使用SPSS23.0软件对吉林省2018-2020年178名结核病患者阳性培养物的药敏检测结果进行数据分析。结果 随机抽取的178名患者耐药率为48.3%,其中单耐药患者35名(19.7%),耐多药患者18名(10.1%),多耐药患者15名(8.5%),广泛耐药患者5名(2.8 ...
doaj
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
目的构建骨肉瘤耐药细胞,探讨LIMK1(LIM Kinase1)逆转骨肉瘤耐药的作用及机制。方法通过长春新碱(VCR)诱导建立人成骨肉瘤MG63的耐药细胞亚系,应用半数抑制浓度公式计算IC50值及耐药指数评估细胞的耐药性;CCK-8法检测细胞增殖抑制率;相差倒置显微镜观察耐药细胞细胞形态的改变;PT-PCR实验检测耐药基因MDR1及其相关基因LIMK1的表达;转染pSUPER-LIMK1重组质粒,验证沉默LIMK1基因逆转MG63耐药的作用并分析其机制。结果本研究所构建的耐药细胞的耐药指数为7.01 ...
黄丽红 +4 more
doaj
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
为了分析火烈鸟(Phoenicopterus ruber)腹泻沙门菌(Salmonella)的致病性及耐药性情况,2016—2020年采集动物园中患腹泻火烈鸟的粪便、肛拭子和死亡火烈鸟的肝脏等病料组织102份,采用细菌分离鉴定和PCR方法进行沙门菌鉴定,采用人工感染小白鼠致病性试验和K-B药敏纸片法分别检测分离菌株的致病性和耐药表型情况。结果显示:从102份病料组织中分离得到89株沙门菌,其中75株沙门菌对小白鼠具有致病性,这75株沙门菌分离菌株对链霉素、阿莫西林、氨苄西林等14种药物耐药率在45.3 ...
邓丽玲 汪明权 李雨芮
doaj
Background – Biofilm production by canine otitis externa (COE) pathogens and resistance development to multiple antimicrobials are commonly reported problems in veterinary practice. The use of adjuvants to disrupt biofilms may be a viable adjunctive therapy.
Bhumika F. Savaliya +3 more
wiley +1 more source
热化疗逆转人肝癌细胞系HepG2/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HepG2/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HepG2/ADM耐药性影响;利用流式细胞仪检测细胞内ADM浓度变化。结果热化疗使多药耐药人肝癌细胞系HepG2/ADM耐药性降低;细胞内阿霉素浓度提高。结论热化疗具有逆转多药耐药人肝癌细胞系HepG2/ADM耐药性的作用,可能与细胞内阿霉素浓度提高有关。
李玉, 王宁, 孙涛, 宋丽艳
doaj
Background – Bacterial identification and antimicrobial susceptibility testing is an important step in timely therapeutic decisions for canine superficial bacterial folliculitis (SBF), commonly caused by Staphylococcus pseudintermedius. Next‐generation sequencing (NGS) offers the appeal of potentially expedited results with complete detection of ...
Kimberly Smart +4 more
wiley +1 more source
Analyzing antimicrobial resistance as a series of collective action problems
Abstract Antimicrobial resistance (AMR) causes over 1.27 million deaths annually, making it one of today's most urgent health threats. Given its urgency, there are often calls for large‐scale global initiatives to address AMR. However, theories of collective action have yet to be applied to the problem in a systematic and holistic manner.
Isaac Weldon +8 more
wiley +1 more source

