keyword
MENU ▼
Read by QxMD icon Read
search

chloramphenicol

keyword
https://www.readbyqxmd.com/read/29158706/comparative-study-of-free-and-liposome-entrapped-chloramphenicol-against-biofilms-of-potentially-pathogenic-bacteria-isolated-from-cooling-towers
#1
Marcus Vinícius Dias-Souza, Daniel Lucas Soares, Vera Lúcia Dos Santos
This study aimed to investigate for the first time the in vitro antibiofilm effectiveness of two chloramphenicol liposome formulations against biofilms of potentially pathogenic bacteria associated to corrosion isolated from the water of cooling towers from a Brazilian industry. Antibiofilm assays with liposomes were performed in 96-wells microtiter plates, and data was compared to free chloramphenicol treatment. Chloramphenicol-loaded liposomes were successfully produced using the dehydration-rehydration method, with vesicle diameters of 131 nm (100 nm membrane extrusion) and 182 nm (200 nm membrane extrusion) assessed by dynamic light scattering...
November 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/29157815/an-efflux-pump-mexab-oprm-of-pseudomonas-aeruginosa-is-associated-with-antibacterial-activity-of-epigallocatechin-3-gallate-egcg
#2
Rashmi Kanagaratnam, Rida Sheikh, Fahad Alharbi, Dong H Kwon
BACKGROUND: Pseudomonas aeruginosa is a notorious multidrug resistant nosocomial pathogen. An efflux pump (MexAB-OprM) is the main contributor to the multidrug resistance in clinical isolates of P. aeruginosa. Epigallocatechin-3-gallate (EGCG), a polyphenolic compound extracted from green tea, exhibits antibacterial activity. It is unclear that molecular details of the antibacterial activity of EGCG, EGCG-effect on antibiotic susceptibility, and clinical relevance of EGCG in bacteria...
December 1, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29157372/prevalence-of-antimicrobial-resistance-from-bacterial-culture-and-susceptibility-records-from-horse-samples-in-south-africa
#3
John K Chipangura, Thireshni Chetty, Marcia Kgoete, Vinny Naidoo
The continuous increase in prevalence of antimicrobial resistant bacteria presents a significant public health problem and is an indicator that antimicrobial prudent usage guidelines are not being followed, especially in developing countries. Despite trends being available from numerous countries, there is little published for South Africa. This study was aimed at estimating the prevalence and trends of antimicrobial resistance from bacterial isolates from equine clinical samples submitted for culture and susceptibility testing to the veterinary bacteriology laboratory of the University of Pretoria...
December 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29154715/virulence-and-antibiotic-resistance-of-vibrio-parahaemolyticus-isolates-from-seafood-from-three-developing-countries-and-of-worldwide-environmental-seafood-and-clinical-isolates-from-2000-to-2017
#4
Mohammad M Obaidat, Alaa E Bani Salman, Amira A Roess
Vibrio parahaemolyticus is a leading cause of seafood-associated illness. This study investigated the prevalence, virulence, and antibiotic resistance of V. parahaemolyticus in three low- and middle-income countries. Freshly caught fish samples (n = 330) imported to Jordan from Yemen, India, and Egypt were tested. The overall prevalence of V. parahaemolyticus was 15% (95% confidence interval: 11 to 19%). Three isolates (6%) were positive for the thermostable direct hemolysin-related (trh) gene, and all isolates was negative for the thermostable direct hemolysin (tdh) gene...
November 20, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29150447/the-prototypical-proton-coupled-oligopeptide-transporter-ydgr-from-escherichia-coli-facilitates-chloramphenicol-uptake-into-bacterial-cells
#5
Bala K Prabhala, Nanda G Aduri, Neha Sharma, Aqsa Shaheen, Arpan Sharma, Mazhar Iqbal, Paul R Hansen, Christoffer Brasen, Michael Gajhede, Moazur Rahman, Osman Mirza
Chloramphenicol (Cam) is a broad-spectrum antibiotic used to combat bacterial infections in humans and animals. Cam export from bacterial cells is one of the mechanisms by which pathogens resist Cam's antibacterial effects, and several different proteins are known to facilitate this process. However, to date no report exists on any specific transport protein that facilitates Cam uptake. The proton-coupled oligopeptide transporter (POT) YdgR from Escherichia coli is a prototypical member of the POT family, functioning in proton-coupled uptake of di- and tripeptides...
November 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29149094/genomic-analysis-of-third-generation-cephalosporin-resistant-escherichia-coli-from-dairy-cow-manure
#6
Muhammad Attiq Rehman, Xianhua Yin, Dion Lepp, Chad Laing, Kim Ziebell, Guylaine Talbot, Edward Topp, Moussa Sory Diarra
The production of extended-spectrum β-lactamases (ESBLs) conferring resistance to new derivatives of β-lactams is a major public health threat if present in pathogenic Gram-negative bacteria. The objective of this study was to characterize ceftiofur (TIO)- or cefotaxime (FOX)-resistant Escherichia coli isolated from dairy cow manure. Twenty-four manure samples were collected from four farms and incubated under anaerobic conditions for 20 weeks at 4 °C or at 25 °C. A total of 37 TIO- or FOX-resistant E. coli were isolated from two of the four farms to determine their susceptibility to 14 antibiotics...
November 17, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29149023/antibiotic-susceptibility-genetic-diversity-and-the-presence-of-toxin-producing-genes-in-campylobacter-isolates-from-poultry
#7
Jeeyeon Lee, Jiyeon Jeong, Heeyoung Lee, Jimyeong Ha, Sejeong Kim, Yukyung Choi, Hyemin Oh, Kunho Seo, Yohan Yoon, Soomin Lee
This study examined antibiotic susceptibility, genetic diversity, and characteristics of virulence genes in Campylobacter isolates from poultry. Chicken (n = 152) and duck (n = 154) samples were collected from 18 wet markets in Korea. Campylobacter spp. isolated from the carcasses were identified by PCR. The isolated colonies were analyzed for antibiotic susceptibility to chloramphenicol, amikacin, erythromycin, tetracycline, ciprofloxacin, nalidixic acid, and enrofloxacin. The isolates were also used to analyze genetic diversity using the DiversiLab(TM) system and were tested for the presence of cytolethal distending toxin (cdt) genes...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148887/wild-birds-as-a-potential-source-of-known-and-novel-multilocus-sequence-types-of-antibiotic-resistant-enterococcus-faecalis
#8
Dagmara Stępień-Pyśniak, Tomasz Hauschild, Anna Nowaczek, Agnieszka Marek, Marta Dec
We assessed the antibiotic resistance and genetic diversity of 27 Enterococcus faecalis isolates from 25 wild bird species in Poland. Resistance to lincomycin (100%) was most common followed by tetracycline (48%), erythromycin (44%), and ciprofloxacin (22%). High-level resistance to streptomycin and kanamycin was observed in 19 and 15% of isolates, respectively. One isolate (4%) exhibited low-level resistance to penicillin and vancomycin, and all isolates were susceptible to gentamicin and chloramphenicol. Antibiotic resistance was linked to the tet(M), tet(L), erm(A), erm(B), msr(A/B), ant(6)-Ia, and aph(3')-IIIa genes...
November 17, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/29148877/characterization-and-horizontal-transfer-of-antimicrobial-resistance-genes-and-integrons-in-bacteria-isolated-from-cooked-meat-products-in-china
#9
Tao Yu, Xiaobing Jiang, Yu Liang, Yanping Zhu, Jinhe Tian, Hao Ying, Xuannian Wang, Lei Shi
The aim of this study was to investigate antimicrobial resistance and the presence and transferability of corresponding resistance genes and integrons in bacteria isolated from cooked meat samples in the People's Republic of China. A total of 150 isolates (22 species belonging to 15 genera) were isolated from 49 samples. Resistance of these isolates to antimicrobials was commonly observed; 42.7, 36.0, and 25.3% of the isolates were resistant to tetracycline, streptomycin, and ampicillin, respectively. Multidrug resistance was observed in 41 (27...
November 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29147677/antimicrobial-resistance-profiles-of-bacteria-isolated-from-the-nasal-cavity-of-camels-in-samburu-nakuru-and-isiolo-counties-of-kenya
#10
J M Mutua, C G Gitao, L C Bebora, F K Mutua
This study was designed to determine antimicrobial resistance profiles of bacteria isolated from the nasal cavity of healthy camels. A total of 255 nasal samples (swabs) were collected in Isiolo, Samburu, and Nakuru counties, Kenya, from which 404 bacterial isolates belonging to various genera and species were recovered. The bacterial isolates included Bacillus (39.60%), coagulase-negative Staphylococcus (29.95%), Streptococcus species other than Streptococcus agalactiae (25.74%), coagulase-positive Staphylococcus (3...
2017: Journal of veterinary medicine
https://www.readbyqxmd.com/read/29146499/antimicrobial-resistance-and-virulence-genes-profiling-of-methicillin-resistant-staphylococcus-aureus-isolates-in-a-burn-center-a-5-year-study
#11
Bei Jiang, Supeng Yin, Bo You, Yali Gong, Guangtao Huang, Zichen Yang, Yulong Zhang, Yu Chen, Jing Chen, Zhiqiang Yuan, Xiaomei Hu, Yizhi Peng
Methicillin-resistant S. aureus (MRSA) has attracted more and more attention in recent years, especially in burn medical centers. Here we conducted a 5-year period study to evaluate the MRSA infection in our burn center. The staphylococcal chromosomal cassette mec (SCCmec) typing, antimicrobials susceptibility and virulence profiles were also performed among the MRSA isolates. Of the 259 S. aureus isolates, 239 (92.28%) isolates were identified as MRSA. A decreased trend of MRSA isolation rate over time was found (P = 0...
November 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29145601/identification-and-functional-analysis-of-potential-prophage-derived-recombinases-for-genome-editing-in-lactobacillus-casei
#12
Yongping Xin, Tingting Guo, Yingli Mu, Jian Kong
Numerous LAB bacteriophage genomes have been sequenced, while the functional genes are yet to be exploited. In this study, a λ Red-like recombinase operon LCABL_13040-50-60 was identified from a prophage PLE3 in Lactobacillus casei BL23 genome, and its recombination function was confirmed by replacement of a 167 bp galK fragment with chloramphenicol-resistant gene (cat) in the L. casei BL23 genome. Further functional analysis showed that LCABL_13040 and LCABL_13060 were analogs to the host nuclease inhibitor (Redγ) and 5'-3' exonuclease (Redα/RecE), respectively...
November 14, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29141346/-etiologic-characteristics-of-shigella-sonnei-strains-isolated-from-some-areas-of-guangdong-province-and-guangxi-zhuang-autonomous-region-of-china-2014-2016
#13
B S Li, L J Chen, B X Ke, J M Lin, L Q Xu, H L Tan, D M He, Y H Liang, C W Ke, Y H Zhang
Objective: To investigated the etiologic characteristics of Shigella (S.) sonnei strains causing outbreaks and sporadic cases in some areas of Guangdong province and Guangxi Zhuang Autonomous Region during 2014-2016. Methods: Fourteen S. sonnei strains isolated from outbreaks and 6 S. sonnei strains from sporadic cases from Guangdong and Liuzhou of Guangxi Zhuang Autonomous Region were tested for antimicrobial resistance and analyzed by pulsed-field gel electrophoresis (PFGE). Six typical strains were selected for whole genome sequencing typing and compared with 51 strains isolated both at home and abroad from NCBI genome database...
November 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29138446/antimicrobial-resistance-and-genetic-diversity-in-ceftazidime-non-susceptible-bacterial-pathogens-from-ready-to-eat-street-foods-in-three-taiwanese-cities
#14
Lin Lin, Sheng-Fan Wang, Tsung-Ying Yang, Wei-Chun Hung, Min-Yu Chan, Sung-Pin Tseng
Bacterial contamination of ready-to-eat (RTE) street foods is a major concern worldwide. Dissemination of antibiotic resistant pathogens from food is an emerging public-health threat. To investigate the prevalence of antibiotic resistance genes and ceftazidime resistance-associated efflux pumps in foodborne pathogens, 270 RTE street foods samples were collected in three densely populated Taiwanese cities. Among 70 ceftazidime non-susceptible isolates, 21 Stenotrophomonas maltophilia, 12 Pseudomonas spp., 22 Acinetobacter spp...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29131910/resistant-infantile-bacterial-conjunctivitis-in-egypt-a-microbiology-study
#15
Aiman Abdeltawwab Hashish, Molham Abdelhafez Elbakary, Waleed Abdelhady Allam
PURPOSE: To study the microbiological aspects of infantile bacterial conjunctivitis resistant to empirical topical antibiotic therapy in Egypt. METHODS: Ninety-two eyes of 86 infants with bacterial conjunctivitis were included in this prospective study. They all failed to show evidence of clinical improvement after 2 weeks of empirical topical antibiotic therapy. Conjunctival swabs were obtained from all patients for bacterial culture and antibiotic sensitivity testing...
November 11, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29126034/electrolytic-and-electro-irradiated-technologies-for-the-removal-of-chloramphenicol-in-synthetic-urine-with-diamond-anodes
#16
Salvador Cotillas, Engracia Lacasa, Cristina Sáez, Pablo Cañizares, Manuel A Rodrigo
Hospital effluents are a major source for the occurrence of pharmaceuticals in the environment. In this work, the treatment of synthetic urine polluted with chloramphenicol is studied by using three different conductive-diamond electrochemical oxidation technologies: electrolysis (single electrolysis), photoelectrolysis and high-frequency ultrasound sonoelectrolysis. These technologies were evaluated at 10 and 100 mA cm(-2). Results shows that not only chloramphenicol but also other organics contained in urine are completely mineralized by electrolysis...
November 1, 2017: Water Research
https://www.readbyqxmd.com/read/29118939/escherichia-coli-pathotypes-and-shigella-sero-groups-in-diarrheic-children-in-nairobi-city-kenya
#17
Peter Lokamar Nyanga, Jackson Onyuka, Mark Kilongosi Webale, Tom Were, Valentine Budambula
Aim: In the present study, we investigated the prevalence of E. coli pathotypes and Shigella sero-groups and their antimicrobial profiles among diarrheic children in Nairobi city, Kenya. Background: Although diarrheagenic E. coli pathotypes and Shigella sero-groups are leading causes of diarrhea in children under five years in developing countries, their distribution and antimicrobial resistance vary from place to place and over time in a given region. Methods: In a cross-sectional study, we enrolled diarrheic children (n=354) under five years seeking treatment at Mbagathi Hospital, Nairobi city, Kenya,...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/29116521/high-throughput-igg-reformatting-and-expression
#18
Chao-Guang Chen, Georgina Sansome, Michael J Wilson, Con Panousis
We have recently described a one-step zero-background IgG reformatting method that enables the rapid reformatting of phage-displayed antibody fragments into a single-mammalian cell expression vector for full IgG expression (Chen et al. Nucleic Acids Res 42:e26, 2014). The strategy utilizes our unique positive selection method, referred to as insert-tagged (InTag) positive selection, where a positive selection marker (e.g. chloramphenicol-resistance gene) is cloned together with the antibody inserts into the expression vector...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29112138/cytotoxic-and-antibacterial-compounds-from-the-coral-derived-fungus-aspergillus-tritici-sp2-8-1
#19
Weiyi Wang, Yanyan Liao, Chao Tang, Xiaomei Huang, Zhuhua Luo, Jianming Chen, Peng Cai
Three novel compounds, 4-methyl-candidusin A (1), aspetritone A (2) and aspetritone B (3), were obtained from the culture of a coral-derived fungus Aspergillus tritici SP2-8-1, together with fifteen known compounds (4-18). Their structures, including absolute configurations, were assigned based on NMR, MS, and time-dependent density functional theory (TD-DFT) ECD calculations. Compounds 2 and 5 exhibited better activities against methicillin-resistant strains of S. aureus (MRSA) ATCC 43300 and MRSA CGMCC 1...
November 7, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29111433/longitudinal-study-on-antimicrobial-consumption-and-resistance-in-rabbit-farming
#20
Fabrizio Agnoletti, Romina Brunetta, Luca Bano, Ilenia Drigo, Elena Mazzolini
Reliable indicators of antimicrobial consumption (AMC) measured with harmonized data and supported with indicators for antimicrobial resistance (AMR) at herd level are necessary to target antimicrobial misuse in food producing animals. To this scope in 2010-2015 we collected AMC data in 32 Italian industrial rabbit holdings weighted with semester production and standardized with animal daily dose (ADD). Herd level AMR against eight antimicrobials was assessed in E. coli, E. faecalis and E. hirae collected in 2014 and 2015...
October 27, 2017: International Journal of Antimicrobial Agents
keyword
keyword
120536
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"