Results 31 to 40 of about 9,336 (175)
Down-regulation of GRP78 Enhances Chemotherapy Sensitivity to VP-16 in Lung Adenocarcinoma [PDF]
, 2009 Background and objective GRP78, a member of GRPs, plays a critical role in chemotherapy resistance in some cancers. To investigate the relationship between the expression of GRP78 and resistance to anti-cancer drug VP-16 in vitro in lung adenocarcinoma ...
Li JIANG +3 more
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Veterinary Dermatology, Volume 36, Issue 3, Page 234-282, June 2025.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
Zhongguo shiyan zhenduanxue, 2006 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
Zhongguo 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
Protein phosphatase 2A-B55δ enhances chemotherapy sensitivity of human hepatocellular carcinoma under the regulation of microRNA-133b [PDF]
, 2016 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
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Veterinary 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
热化疗逆转人肝癌细胞系HepG2/ADM多药耐药性的实验研究
Zhongguo shiyan zhenduanxue, 2007 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
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, 2012 从广东省以及海南省等地区养殖的患病罗非鱼体内分离、收集到多株致病菌,经生化分析和分子生物学鉴定,均为无乳链球菌。对这些菌株分别进行了耐药谱测定、分子分型试验以及分子血清型分析。药敏试验结果表明,2007—2010年分离到的无乳链球菌耐药谱基本相似;多位点可变数目串联重复序列分析(MLVA)试验中,选择5个高变异指数的可变数目重复位点(VNTR)进行分子分型,结果表明,所有鱼源无乳链球菌菌株为同一MLVA型,而作为对照的牛源无乳链球菌则明显不同;为了对这些菌株进一步分型 ...
张德锋 +5 more
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Combating infections under siege: Healthcare challenges amidst the military assault in Gaza
World Medical &Health Policy, Volume 17, Issue 1, Page 188-213, March 2025.Abstract The ongoing Israeli military assault on Gaza has caused a devastating collapse of healthcare infrastructure, resulting in an unprecedented surge in infectious diseases. The destruction of sanitation systems, restrictions on medical supplies, and displacement of civilians have created an environment conducive to the rapid spread of waterborne ...
Bilal Irfan +24 more
wiley +1 more source
A study about the impact of overpression of Oct4 and Sox2 gene on gastric cancer cell biology and oncology characteristics [PDF]
, 2015 目的：通过构建过表达干细胞因子Oct4和Sox2的胃癌SGC7901细胞株，研究过表达干细胞因子Oct4和Sox2对SGC7901胃癌细胞干细胞特性、肿瘤学特性、及生物学特性的影响，并探讨Oct4及Sox2在肿瘤细胞中的作用机制。 方法：1.构建携带Sox2基因的重组质粒，慢病毒载体感染SGC7901-OCT4细胞株得到SGC7901-OCT4-SOX2稳转细胞株。2.利用荧光定量PCR、western–bloting检测过表达Oct4及Sox2的胃癌SGC7901细胞中胃癌干细胞标志基因表达情况。3 ...
李文鹏
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