Results 31 to 40 of about 8,612 (165)

貂源肺炎克雷伯菌分离鉴定与耐药性检测

open access: yes野生动物学报, 2021
为鉴定引起水貂(Neovison vison)出血性肺炎的病原菌,并分析其耐药性,采集患出血性肺炎貂的肺脏、心血、肝脏等病料组织86份,采用细菌分离鉴定和PCR方法对采集的病料组织进行肺炎克雷伯菌(Klebsiella pneumoniae)鉴定,采用人工感染动物性试验、KB药敏纸片法分别检测其致病性、耐药性。结果显示:从采集的86份病料组织样品分离得到42株致病性肺炎克雷伯菌,该致病菌对阿莫西林、氨苄西林、庆大霉素、新霉素、氟苯尼考、强力霉素、磺胺二甲氧嘧啶7种药物耐药性较高,耐药率为595 ...
郭蕊 1 张召兴 2   +1 more
doaj  

Establishment and application of a HTS assay for inhibitors of Vibrio vulnificus DXS and DXR [PDF]

open access: yes, 2016
弧菌病是水产动物最主要的细菌病之一,其爆发性强,死亡率高,每年给我国水产养殖业造成重大经济损失。目前细菌性病害的防治主要依靠抗生素及化学药物。然而,抗生素的大量盲目地使用,导致了耐药性菌株不断出现,使病害更加难以控制,因此需要不断地寻找新的、安全的抗菌药物。 类异戊二烯是弧菌合成细胞壁结构单元肽聚糖的骨架分子,也是参与能量代谢等多种生物过程的十分重要的生理活性物质。生物体内的类异戊二烯类化合物主要有两种生物合成途径:甲羟戊酸(MVA)途径和2-甲基-D-赤藓糖醇-4-磷酸(MEP)途径 ...
熊静文
core  

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

热化疗逆转人肝癌细胞系BEL-7402/ADM多药耐药性的实验研究

open access: yesZhongguo shiyan zhenduanxue, 2005
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  

Analysis of Differential Gel Electrophoresis of Paclitaxol Resistant and Sensitive Lung Adenocarcinoma Cells' Secretome [PDF]

open access: yes, 2009
Background and objective Paclitaxol (PTX) resistance is one of main factors which affect the outcome of chemotherapy of lung adenocarcinoma. The aim of this study is to compare the secreted protein expression profiles between Paclitaxol (PTX) resistant ...
Huifang SHA   +5 more
core  

Antimicrobial use guidelines for canine pyoderma by the International Society for Companion Animal Infectious Diseases (ISCAID)

open access: yesVeterinary 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

红霉素诱导呼吸道分离金黄色葡萄球菌耐药状况研究

open access: yesZhongguo shiyan zhenduanxue, 2011
目的探讨呼吸道分离的金黄色葡萄球菌耐药情况、耐药的菌株是否有遗传稳定性,及对其他种类的抗生素有无交叉耐药。方法把试验菌株与标准菌株在不同含药平皿中接种传代,观察MIC值的变化,再测定遗传稳定性及有无交叉耐药。结果试验菌株与标准菌株多次传代后,耐药突变菌株获得的耐药性是稳定的。未对其他种抗生素发生交叉耐药。结论合理选用抗生素,监测细菌耐药性、掌握耐药机制等综合措施的实施,才能减缓细菌耐药性的增长。
王轶, 刘珊珊, 黄瑾
doaj  

Antimicrobial activities of Scygonadin2 and Sphistin from Scylla paramamosain and the synergistic effects with antibiotics against bacteria [PDF]

open access: yes, 2015
抗生素(antibiotics)作为最广泛应用的抗细菌药物,目前被广泛应用于水产养殖业中,但超量、滥用抗生素造成了水产品药物残留超标等一系列问题,如何控制抗生素的过量应用是亟待解决的重要科学与生产问题,因此寻找抗生素的有效替代品是目前国内外本领域的研究热点之一。抗菌肽(antimicrobialpeptide)是先天性免疫中的重要免疫活性因子,具有广谱的抗菌性,且不会产生耐药性,在所有替代抗生素的选择中,抗菌肽被认为是普遍存在于各种生物中由基因编码的“天然抗生素”,是抗生素的最佳替代品之一 ...
刘杰
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

肝癌多药耐药细胞系HepG2/ADM的建立及耐药机制研究

open access: yesZhongguo 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  

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