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期刊论文 17

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2022 4

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关键词

RE- cmeABC 1

临床型乳房炎 1

作用机制 1

共轭连接 1

分子特征 1

副猪嗜血杆菌,抗药性,耐药基因,越南 1

可持续农业体系 1

吖啶 1

弯曲菌 1

微生物源抗菌肽 1

抗生素替代品 1

抗生素耐药性 1

抗菌活性 1

核定位序列 1

氟苯尼考 1

环丙沙星 1

种群结构 1

肺炎克雷伯菌 1

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Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

《农业科学与工程前沿(英文)》 2018年 第5卷 第3期   页码 301-311 doi: 10.15302/J-FASE-2018207

摘要:

By measuring the quantity and ways in which antimicrobials are used, and reviewing different technical and socioeconomic factors influencing antimicrobial use at farm level, this study discusses the main knowledge gaps in antimicrobial use in food animal production and provides recommendations for future research and policy development. The review reveals that antimicrobial use in food animals exhibit strong regional and species differences, and there are still large information gaps concerning the current state of antimicrobial use. Factors associated with animal health (including antimicrobial resistance), animal health improvement, economic costs and benefits relevant to animal diseases, and potential technological alternatives or alternative systems all have an impact on antimicrobial use on the farm. There is a clear need to resolve the data gap by monitoring antimicrobial use and developing an analytical framework to better understand farmer behaviors under different technical, economic and environmental circumstances.

关键词: antimicrobial use     drivers for antimicrobial use     food animal production    

Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

《化学科学与工程前沿(英文)》 2023年 第17卷 第12期   页码 2101-2113 doi: 10.1007/s11705-023-2361-5

摘要: In response to the reduction of food production and economic losses caused by plant bacterial diseases, it is necessary to develop new, efficient, and green pesticides. Natural products are rich and sustainable source for the development of new pesticides due to their low toxicity, easy degradation, and eco-friendliness. In this study, we prepared three series of ursolic acid derivatives and assessed their antibacterial ability. Most target compounds exhibited outstanding antibacterial activities. Among them, the relative optimal EC50 values of Xanthomonas oryzae pv. oryzae and Xanthomonas axonopodis pv. citri were 2.23 (A17) and 1.39 (A16) μg·mL–1, respectively. The antimicrobial mechanism showed that compound A17 induced an excessive accumulation and production of reactive oxygen species in bacteria and damaged the cell membrane integrity to kill bacteria. More interestingly, the addition of low concentrations of exogenous hydrogen peroxide enhanced the antibacterial efficacy of compound A17 against Xanthomonas oryzae pv. oryzae. These entertaining results suggested that compound A17 induced an apparent apoptotic behavior in the tested bacteria. Overall, we developed the promising antimicrobial agents that destroyed the redox system of phytopathogenic bacteria, further demonstrating the unprecedented potential of ursolic acid for agricultural applications.

关键词: ursolic acid     antibacterial activities     reactive oxygen species     apoptosis    

of copper nanoparticles on multiwalled carbon nanotubes modified with poly (acrylic acid) and their antimicrobial

Li SHENG,Shuhang HUANG,Minghao SUI,Lingdian ZHANG,Lei SHE,Yong CHEN

《环境科学与工程前沿(英文)》 2015年 第9卷 第4期   页码 625-633 doi: 10.1007/s11783-014-0711-8

摘要: A novel hybrid material, Cu-PAA/MWCNTs (copper nanoparticles deposited multiwalled carbon nanotubes with poly (acrylic acid) as dispersant, was prepared and expected to obtain a more effective and well-dispersed disinfection material for water treatment. X-ray energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), the X-ray fluorescence (XRF), X-ray photoelectron spectra (XPS), Fourier transform infrared spectra (FT-IR), Raman spectroscopy, and thermal gravimetric analyzer (TGA) were used to characterize the Cu-PAA/MWCNTs. ( ) was employed as the target bacteria. The cell viability determination and fluorescence imaging results demonstrated that Cu-PAA/MWCNTs possessed strong antimicrobial ability on . The deposited Cu was suggested to play an important role in the antimicrobial action of Cu-PAA/MWCNTs.

关键词: multiwalled carbon nanotubes     copper nanoparticles     antimicrobial activity     Escherichia coli (E. coil)    

Microwave-assisted synthesis and antimicrobial activities of 2-aryl-3-(naphthalene-1 or 2-yl)-1,3-thiazolidin

Hua CHEN, Yanan LI, Jie BAI, Lian ZHAO, Xiangguo YUAN, Xiaoliu LI, Keqiang CAO

《化学科学与工程前沿(英文)》 2009年 第3卷 第2期   页码 186-191 doi: 10.1007/s11705-009-0004-0

摘要: 2-aryl-3-(naphthalene-1 or 2-yl)-1,3-thiazolidin-4-ones and were synthesized in 41%-67% yield by using microwave-assisted one-pot protocol. The structures of the new compounds , , , , , , and - were confirmed by IR, NMR, MS, and elemental analysis. The antimicrobial activities of the compounds against pv. lachrymans (Smith et Bryan) Young, Dye & Wilkie, Pers., and Blum. were examined. Some of the compounds showed good antifungical activity against Blum.

关键词: microwave-assisted synthesis     naphthyl     thiazolidin-4-one     antimicrobial    

Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

null

《医学前沿(英文)》 2016年 第10卷 第4期   页码 517-521 doi: 10.1007/s11684-016-0480-9

摘要:

This study aimed to compare the antimicrobial activities of topical agents against Propionibacterium acnes isolated from patients admitted to a hospital in Shanghai, China. The minimal inhibitory concentrations of the cultured P. acnes were determined in accordance with the Clinical and Laboratory Standards Institute. Susceptibilities to clindamycin and erythromycin were compared in terms of gender, age, disease duration, previous treatment, and disease severity. A total of 69 P. acnes strains were isolated from 98 patients (70.41%). The susceptibility to triple antibiotic ointment (neomycin/bacitracin/polymyxin B) and bacitracin was 100%. The susceptibility to fusidic acid was 92.7%. The resistance rates to neomycin sulfate, erythromycin, and clindamycin were 11.7%, 49.3%, and 33.4%, respectively. The high resistance rate to clindamycin and erythromycin was significantly affected by gender, previous treatment, and disease severity rather than by age and disease duration. Topical antibiotics should not be used separately for long-term therapy to avoid multiresistance. The use of topical antibiotics should be determined by clinicians on the basis of clinical conditions.

关键词: antimicrobial susceptibility/resistance     Propionibacterium acnes     topical antibiotics     in vitro study    

越南广平和顺化两省猪场分离副猪嗜血杆菌的抗生素耐药表型和耐药基因之间的相关性研究 Article

Chao Nguyen Van, 张丽君, Tam Vu Thi Thanh, Hung Pham Hoang Son, Tuan Tran Ngoc, 黄琦, 周锐

《工程(英文)》 2020年 第6卷 第1期   页码 40-48 doi: 10.1016/j.eng.2019.10.014

摘要:

副猪嗜血杆菌是一种对全球养猪业造成重大经济损失的病原菌。副猪嗜血杆菌防控失败的原因之一是细菌耐药性不断加重。越南拥有亚洲排名第二的生猪产量,但是缺乏针对副猪嗜血杆菌耐药性的相关研究和数据。本研究的目的是调查越南副猪嗜血杆菌的耐药性,并分析耐药性和耐药性基因之间的关系。本研究所使用的副猪嗜血杆菌分离菌株来自我们之前研究中从越南广平省和顺化省猪场分离到的菌株。本研究分别利用肉汤微稀释法和聚合酶链反应(PCR)法检测了这些菌株对25种抗生素的耐药性及相关耐药基因的存在情况。结果显示,这些分离株对甲氧苄啶/磺胺甲恶唑的耐药率达高到94.6%,其次是黏菌素、氯霉素、庆大霉素、青霉素、林可霉素和阿莫西林。这些菌株中相关联耐药基因的检出率分别为blaTEM-1 94.6%、int 76.8%、gyrA 58.9%以及rmtD 50.0%。头孢呋辛、氯霉素和妥布霉素的耐药性表型分别与耐药基因blaROB-1 [优势比(OR) = 26.3, 95% 置信区间(CI)2.7~255.7, p = 0.002]、catl (OR = 25.1, 95% CI 2.4~258.9, p = 0.004)以及strB (OR = 23.5, 95% CI 2.6~212.6, p = 0.001)呈显著正相关。本研究首次揭示了越南中部地区副猪嗜血杆菌的耐药性情况,有助于该疾病的临床控制,能够为降低越南中部的养猪业中该菌的耐药性以及为相关政策制定和临床用药提供指导。

关键词: 副猪嗜血杆菌,抗药性,耐药基因,越南    

吖啶– 核定位序列偶联构建的高活性抗菌肽 Artical

Wei Zhang,Xiaoli Yang,Jingjing Song,Xin Zheng,Jianbo Chen,Panpan Ma,Bangzhi Zhang,Rui Wang

《工程(英文)》 2015年 第1卷 第4期   页码 500-505 doi: 10.15302/J-ENG-2015106

摘要:

多重耐药菌的出现迫切需要发现具有新作用机制的抗生素。在本研究中,笔者将疏水的吖啶分子连接到核定位序列 (NLS) 的N末端合成了一种新型的抗菌药物Acr3-NLS。为了进 一步提高该试剂的抗菌活性,笔者将两个单体Acr3-NLS分子通过二硫键连接合成了二聚体(Acr3-NLS)2。结果显示,与NLS相比,Acr3-NLS,特别是(Acr3-NLS)2,对革兰阴性菌和革兰阳性菌表现出显著的抗菌活性。随后,其作用机制的研究表明,Acr3-NLS 和(Acr3-NLS)2 可通过细胞膜破坏方式和DNA 结合方式杀死细菌。作用于细胞膜和细胞内DNA的双靶点抑杀机制可以降低细菌对Acr3-NLS 和(Acr3-NLS)2 产生耐药性的风险。总之, 本研究提供了一种新的策略,可用于设计具有双重作用机制的高效抗菌药物。

关键词: 吖啶     核定位序列     共轭连接     抗菌活性     作用机制    

细菌耐药性威胁人类健康 Editorial

沈建忠, Timothy R. Walsh

《工程(英文)》 2022年 第15卷 第8期   页码 1-2 doi: 10.1016/j.eng.2022.06.003

Strategies on designing multifunctional surfaces to prevent biofilm formation? ?

Yang Lu,Zhanguo Yue,Wei Wang,Zhiqiang Cao

《化学科学与工程前沿(英文)》 2015年 第9卷 第3期   页码 324-335 doi: 10.1007/s11705-015-1529-z

摘要: Bacteria adhesion and biofilm formation have raised severe problems on public health, food industry and many other areas. A variety of reagents and surface coatings have been developed to kill bacteria and/or limit their interaction with surfaces. It has also attracted many efforts to integrate different bactericidal elements together and maximize antibacterial efficiency. Herein, we review mechanisms for both passive and active approaches to resist and kill bacteria respectively, and discuss integrated strategies based on these two approaches. We also offer perspective on future research direction.

关键词: antimicrobial     surface     multifunctional    

Multifunctional antimicrobial chlorhexidine polymers by remote plasma assisted vacuum deposition

Ana Mora-Boza, Francisco J. Aparicio, María Alcaire, Carmen López-Santos, Juan P. Espinós, Daniel Torres-Lagares, Ana Borrás, Angel Barranco

《化学科学与工程前沿(英文)》 2019年 第13卷 第2期   页码 330-339 doi: 10.1007/s11705-019-1803-6

摘要: Novel antibacterial materials for implants and medical instruments are essential to develop practical strategies to stop the spread of healthcare associated infections. This study presents the synthesis of multifunctional antibacterial nanocoatings on polydimethylsiloxane (PDMS) by remote plasma assisted deposition of sublimated chlorhexidine powders at low pressure and room temperature. The obtained materials present effective antibacterial activity against K12, either by contact killing and antibacterial adhesion or by biocide agents release depending on the synthetic parameters. In addition, these multifunctional coatings allow the endure hydrophilization of the hydrophobic PDMS surface, thereby improving their biocompatibility. Importantly, cell-viability tests conducted on these materials also prove their non-cytotoxicity, opening a way for the integration of this type of functional plasma films in biomedical devices.

关键词: plasma polymers     conformal plasma deposition     chlorhexidine     bactericide     PDMS     biocompatibility    

微生物耐药性在人与动物间的传播——我们为什么需要知道更多? Views & Comments

Julian Parkhill

《工程(英文)》 2022年 第15卷 第8期   页码 11-12 doi: 10.1016/j.eng.2022.04.007

ANTIVIRAL EFFECTS OF BACTERIOCIN AGAINST ANIMAL-TO-HUMAN TRANSMITTABLE MUTATED SARS-COV-2: A SYSTEMATIC REVIEW

《农业科学与工程前沿(英文)》 2021年 第8卷 第4期   页码 603-622 doi: 10.15302/J-FASE -2021397

摘要:

The COVID-19 infections caused by SARS-CoV-2 have resulted in millions of people being infected and thousands of deaths globally since November 2019. To date, no unique therapeutic agent has been developed to slow the progression of this pandemic. Despite possessing antiviral traits the potential of bacteriocins to combat SARS-CoV-2 infection has not been fully investigated. This review summarizes the mechanisms by which bacteriocins can be manipulated and implemented as effective virus entry blockers with infection suppression potential properties to highly transmissible viruses through comprehensive immune modulations that are potentially effective against COVID-19. These antimicrobial peptides have been suggested as effective antiviral therapeutics and therapeutic supplements to prevent rapid virus transmission. This review also provides a new insight into the cellular and molecular alterations which have made SARS-CoV-2 self-modified with diversified infection patterns. In addition, the possible applications of antimicrobial peptides through both natural and induced mechanisms in infection prevention perspectives on changeable virulence cases are comprehensively analyzed. Specific attention is given to the antiviral mechanisms of the molecules along with their integrative use with synthetic biology and nanosensor technology for rapid detection. Novel bacteriocin based therapeutics with cutting-edge technologies might be potential substitutes for existing time-consuming and expensive approaches to fight this newly emerged global threat.

 

关键词: antimicrobial proteins / antiviral profiling of bacteriocins / antiviral therapeutics / immunomodulation / nanosensor technology / mutated SARS-CoV-2    

微生物源性抗菌肽在可持续农业中的生物前景 Review

林书华, 陈选, 陈惠敏, 蔡茜茜, 陈旭, 汪少芸

《工程(英文)》 2023年 第27卷 第8期   页码 222-233 doi: 10.1016/j.eng.2022.08.011

摘要:

为满足可持续农业发展体系构建的需求,本文开发了一种可用于替代传统抗生素的策略。该策略指出了一种可用作传统抗生素的替代品——抗菌肽(AMPs),其具有广谱抗菌活性和多靶点抗菌机制的特点。长期以来,研究人员一直致力从微生物中开发抗菌肽,该类微生物代谢活跃可适应各种极端环境。因此,在前人研究基础上,本文基于微生物源抗菌肽的的生物活性、抗菌机制、制备方法和其在农业生产应用中面临的挑战,开发了一种策略,以期为可持续农业发展中抗菌肽的应用提供理论指导。

关键词: 抗生素替代品     微生物源抗菌肽     可持续农业体系    

2014—2016年食品动物源RE-cmeABC阳性弯曲菌流行与耐药性现状 Article

刘德俊, 刘蔚雯, 李星, 姚红, 沈张奇, 汪洋, 沈建忠

《工程(英文)》 2020年 第6卷 第1期   页码 34-39 doi: 10.1016/j.eng.2019.10.013

摘要:

弯曲菌是引起人类胃肠炎的一类重要食源性致病菌。RE-CmeABC是近年来弯曲菌中新发现的一种增强型耐药外排泵,可介导对兽医和人医临床治疗弯曲菌感染的重要药物,如氟喹诺酮类、酰胺醇类、大环内酯类及四环素类等药物的高水平耐药,而目前尚未有对该外排泵的大范围流行病学调查。因此,本研究调查了2014—2016年连续三年间我国山东、上海和广东等三个重点养殖区食品动物源RE-cmeABC阳性弯曲菌的流行与耐药性现状。结果显示,在1088株弯曲菌(931株结肠弯曲菌与157株空肠弯曲菌)中共检测出122株(11.2%)RE-cmeABC阳性菌株,包括111株(70.7%)空肠弯曲菌与11株(1.2%)结肠弯曲菌,空肠弯曲菌中RE-cmeABC的阳性率显著高于结肠弯曲菌。111株RE-cmeABC阳性空肠弯曲菌与46株RE-cmeABC阴性空肠弯曲菌相比在氟苯尼考、克林霉素和红霉素的耐药率上具有显著差异(P < 0.05),而在环丙沙星、四环素和庆大霉素的耐药率上无显著差异。然而,携带RE-cmeABC的菌株可以使环丙沙星与四环素对弯曲菌的MIC值分布趋于更高水平范围。脉冲场凝胶电泳分型(PFGE)结果显示RE-cmeABC阳性菌株在上海和广东地区以水平传播为主,在山东地区以克隆传播为主;三株分离于上海和广东的阳性菌为同一克隆型,4株分离于上海和山东的阳性菌为同一克隆型。本研究表明RE-cmeABC已在我国食品动物源弯曲菌中广泛流行,对公共卫生安全具有潜在威胁。

关键词: RE- cmeABC     弯曲菌     环丙沙星     氟苯尼考    

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

T. G. YUDINA, Danyang GUO, N. F. PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

《化学科学与工程前沿(英文)》 2012年 第6卷 第2期   页码 203-209 doi: 10.1007/s11705-012-1277-2

摘要: Antifungal activity of recombinant medicinal leech destabilase-lysozyme (rec.Dest-Lys) was investigated by using fungi: , and , including yeasts and . Its antibacterial activity was investigated on gram-negative bacteria . These activities were assessed by radial agar diffusion assay, and scanning and transmission electron microscopy. Therefore, destabilase-lysozyme not only is endo-isopeptidase and lysozyme, but also has antifungal and antibacterial activities. Muramidase activity of rec.Dest-Lys disappeared after heat-treating at 90°C for 50 min without the loss of its antimicrobial activity. Furthermore we showed for the first time that the heated-up derivative of rec.Dest-Lys exhibited more potent activities against the above enumerated fungi and gram-negative bacteria than original protein.

关键词: recombinant destabilase-lysozyme (rec.Dest-Lys)     antimicrobial activity     antifungal activity     medicinal leech     heated-up derivative of rec.Dest-Lys (T-rec.Dest-Lys)    

标题 作者 时间 类型 操作

Antimicrobial use in food animal production: situation analysis and contributing factors

Ziping WU

期刊论文

Discovery of novel ursolic acid derivatives as effective antimicrobial agents through a ROS-mediated

期刊论文

of copper nanoparticles on multiwalled carbon nanotubes modified with poly (acrylic acid) and their antimicrobial

Li SHENG,Shuhang HUANG,Minghao SUI,Lingdian ZHANG,Lei SHE,Yong CHEN

期刊论文

Microwave-assisted synthesis and antimicrobial activities of 2-aryl-3-(naphthalene-1 or 2-yl)-1,3-thiazolidin

Hua CHEN, Yanan LI, Jie BAI, Lian ZHAO, Xiangguo YUAN, Xiaoliu LI, Keqiang CAO

期刊论文

Antimicrobial activity of topical agents against Propionibacterium acnes: an in vitro study of clinical

null

期刊论文

越南广平和顺化两省猪场分离副猪嗜血杆菌的抗生素耐药表型和耐药基因之间的相关性研究

Chao Nguyen Van, 张丽君, Tam Vu Thi Thanh, Hung Pham Hoang Son, Tuan Tran Ngoc, 黄琦, 周锐

期刊论文

吖啶– 核定位序列偶联构建的高活性抗菌肽

Wei Zhang,Xiaoli Yang,Jingjing Song,Xin Zheng,Jianbo Chen,Panpan Ma,Bangzhi Zhang,Rui Wang

期刊论文

细菌耐药性威胁人类健康

沈建忠, Timothy R. Walsh

期刊论文

Strategies on designing multifunctional surfaces to prevent biofilm formation? ?

Yang Lu,Zhanguo Yue,Wei Wang,Zhiqiang Cao

期刊论文

Multifunctional antimicrobial chlorhexidine polymers by remote plasma assisted vacuum deposition

Ana Mora-Boza, Francisco J. Aparicio, María Alcaire, Carmen López-Santos, Juan P. Espinós, Daniel Torres-Lagares, Ana Borrás, Angel Barranco

期刊论文

微生物耐药性在人与动物间的传播——我们为什么需要知道更多?

Julian Parkhill

期刊论文

ANTIVIRAL EFFECTS OF BACTERIOCIN AGAINST ANIMAL-TO-HUMAN TRANSMITTABLE MUTATED SARS-COV-2: A SYSTEMATIC REVIEW

期刊论文

微生物源性抗菌肽在可持续农业中的生物前景

林书华, 陈选, 陈惠敏, 蔡茜茜, 陈旭, 汪少芸

期刊论文

2014—2016年食品动物源RE-cmeABC阳性弯曲菌流行与耐药性现状

刘德俊, 刘蔚雯, 李星, 姚红, 沈张奇, 汪洋, 沈建忠

期刊论文

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

T. G. YUDINA, Danyang GUO, N. F. PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

期刊论文