Results 31 to 40 of about 755,729 (168)

人胃癌耐药细胞的建立方法及意义

open access: yesZhongguo shiyan zhenduanxue, 2021
目的 建立人胃癌耐药细胞,为研究人胃癌耐药细胞的耐药机制以及为耐药肿瘤细胞的治疗提供耐药肿瘤细胞模型。方法 体外培养人胃癌细胞SGC-7901,用50μmol/L顺铂多次反复冲击,对冲击4次和6次的SGC-7901分别检测对顺铂的抑制率和多药耐药基因(MDR)及多药耐药特异基因片段的表达,并计算药物对细胞的半数抑制浓度(IC50)。结果 经4次和6次冲击后,受冲击的SGC-7901胃癌细胞对顺铂的抑制率明显高于亲本细胞,IC50为63.98μmol/L和66.34μmol/L,而亲本细胞SGC ...
刘玉侠   +6 more
doaj  

Comparative efficacy of selenoureido carbonic anhydrase inhibitors and azole antifungal drugs against clinical isolates of Malassezia pachydermatis

open access: yesVeterinary Dermatology, Volume 36, Issue 3, Page 302-313, June 2025.
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

陕西省87株耐药结核分枝杆菌寡核苷酸基因分型和耐药性分析 [PDF]

open access: yes, 2018
目的对陕西87例耐药结核分枝杆菌进行分型研究,了解不同基因型在陕西的流行情况及耐药相关性。方法收集陕西省结核分枝杆菌耐药菌株87株,采用Spoligotyping方法对结核分枝杆菌临床分离株进行基因分型。结果 87株耐药结核分枝杆菌中北京家族占86.21%(75/87),非北京家族占13.79%(12/87);非北京基因型中,T家族(T1、T2、T2-3、T3)占9.20%(8/87),Manu家族占1.15%(1/87),新发现基因型占3.45%(3/87)。北京家族和非北京家族的单耐药、多耐药 ...
杨健   +5 more
core  

Comparison of the in vitro antibiofilm activities of otic cleansers against canine otitis externa pathogens

open access: yesVeterinary Dermatology, Volume 36, Issue 2, Page 148-158, April 2025.
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

Comparison of commercial next‐generation sequencing assays to conventional culture methods for bacterial identification and antimicrobial susceptibility of samples obtained from clinical cases of canine superficial bacterial folliculitis

open access: yesVeterinary Dermatology, Volume 36, Issue 1, Page 14-23, February 2025.
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

Development of a Pt(II) compound based on indocyanine green@human serum albumin nanoparticles: integrating phototherapy, chemotherapy and immunotherapy to overcome tumor cisplatin resistance

open access: yesRare Metals, Volume 43, Issue 11, Page 6006-6022, November 2024.
Graphical abstract AbstractCisplatin resistance is the main cause for the failure of cancer therapy. To solve the problem, we proposed to develop a novel human serum albumin (HSA) nanoplatform to integrate chemotherapy, photothermal therapy (PTT) and immunotherapy.
Xue‐Yu Man   +7 more
wiley   +1 more source

白念珠菌基因多态性与耐药性关系 [PDF]

open access: yes, 2007
【目的】探讨耐氟康唑白念珠菌基因多态性与其耐药性是否相关。【方法】收集48株敏感白念珠菌和10株耐氟康唑白念珠菌,其中包括2株体外诱导的耐氟康唑白念珠菌。选择1个随机引物(引物1251),采用任意引物PCR方法基因分型,将电泳图谱扫描入计算机后采用Labwork4.0软件转化为数值图表,利用SPSS11.5进行聚类分析。【结果】引物1251的PCR指纹图带型稳定,多态性丰富,可以作为分型引物。聚类分析结果提示8株临床耐药菌的PCR指纹图相似系数为71.7%,而其中7株的耐药菌相似系数高达86.7 ...
刘慧   +5 more
core  

多药耐药铜绿假单胞菌耐药性及相关耐药基因分析

open access: yesZhongguo shiyan zhenduanxue, 2011
目的探讨临床分离的多重耐药铜绿假单胞菌耐药性及相关耐药基因。方法采用纸片扩散法进行药敏试验,VITEK 2全自动微生物鉴定及药敏系统对其进行重新鉴定,聚合酶链反应(PCR)扩增oprD2、金属酶基因、氨基糖苷类酶修饰基因。结果 40株铜绿假单胞菌对临床常用的抗生素:厄它培南,亚胺培南(IPM)、头孢他啶(CAZ)、美罗培南、头孢吡肟(PEP)、哌拉西林/他唑巴坦(TZP)、环丙沙星、氨曲南(ATM)、庆大霉素(GEN)、妥布霉素、阿米卡星、多粘菌素耐药率分别为100%、96.2%、92.0%、90.1%、
赵祝香   +4 more
doaj  

一株林麝源弗格森埃希菌的分离鉴定及耐药性

open access: yes, 2023
为探究林麝(Moschus berezovskii)的死亡原因,无菌采集死亡林麝脏器样本,通过细菌分离纯化、生化鉴定、16S rDNA基因测序、纸片扩散法和耐药基因检测方法对细菌进行分离、鉴定及分析分离菌株的耐药性。结果表明:从死亡林麝脏器样本中分离得到的菌株为弗格森埃希菌(Escherichia fergusonii),该分离菌株对头孢噻肟、头孢噻吩和青霉素耐药,对氨基糖苷类、喹诺酮类及氨基青霉素类药物敏感;携带耐药基因bla-OXA1/4/30、bla-CTX-M和bla-SHV ...
王如意   +9 more
core   +1 more source

氨基糖苷类高水平耐药肠球菌的耐药及分子机制的研究

open access: yesZhongguo shiyan zhenduanxue, 2013
目的分析氨基糖苷类高水平耐药(High Level Aminoglyeoside Resistant,HLAR)肠球菌的耐药性与耐药基因,并研究其耐药分子机制。方法采用VITEK-2全自动鉴定仪法测定53株氨基糖苷类高水平耐药肠球菌对11种抗菌药物的最小抑菌浓度,用聚合酶链反应(PCR)检测肠球菌转座子Tn917和Tnl546/Tn916、红霉素耐药基因ermB、毒力岛基因mefA、I类整合酶IntI1、氯霉素耐药基cat、表面蛋白基因esp,并对万古霉素耐药肠球菌(Vancomycin ...
徐韫健, 梁权辉, 刘长连
doaj  

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