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https://www.readbyqxmd.com/read/29150724/presence-of-chlamydia-trachomatis-and-mycoplasma-spp-but-not-neisseria-gonorrhoeae-and-treponema-pallidum-in-women-undergoing-an-infertility-evaluation-high-prevalence-of-tetracycline-resistance-gene-tet-m
#1
Min Li, Xiaomei Zhang, Ke Huang, Haixiang Qiu, Jilei Zhang, Yuan Kang, Chengming Wang
Chlamydia trachomatis, Mycoplasma spp., Neisseria gonorrhoeae and Treponema pallidum are sexually transmitted pathogens that threaten reproductive health worldwide. In this study, vaginal swabs obtained from women (n = 133) that attended an infertility clinic in China were tested with qPCRs for C. trachomatis, Mycoplasma spp., N. gonorrhoeae, T. pallidum and tetracycline resistance genes. While none of vaginal swabs were positive for N. gonorrhoeae and T. pallidum, 18.8% (25/133) of the swabs were positive for Chlamydia spp...
November 17, 2017: AMB Express
https://www.readbyqxmd.com/read/29149886/antibiotic-susceptibility-profiles-of-mycoplasma-synoviae-strains-originating-from-central-and-eastern-europe
#2
Zsuzsa Kreizinger, Dénes Grózner, Kinga M Sulyok, Kristin Nilsson, Veronika Hrivnák, Dušan Benčina, Miklós Gyuranecz
BACKGROUND: Mycoplasma synoviae causes infectious synovitis and respiratory diseases in chickens and turkeys and may lead to egg shell apex abnormalities in chickens; hence possesses high economic impact on the poultry industry. Control of the disease consists of eradication, vaccination or medication. The aim of the present study was to determine the in vitro susceptibility to 14 different antibiotics and an antibiotic combination of M. synoviae strains originating from Hungary and other countries of Central and Eastern Europe...
November 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29149094/genomic-analysis-of-third-generation-cephalosporin-resistant-escherichia-coli-from-dairy-cow-manure
#3
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
#4
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/29148895/characterization-of-cefotaxime-and-ciprofloxacin-resistant-commensal-escherichia-coli-originating-from-belgian-farm-animals-indicates-high-antibiotic-resistance-transfer-rates
#5
Ellen Lambrecht, Eva Van Meervenne, Nico Boon, Tom Van de Wiele, Pierre Wattiau, Lieve Herman, Marc Heyndrickx, Els Van Coillie
Food-producing animals represent one of the sources of antibiotic resistant commensal bacteria. There is an increasing awareness that these bacteria might have the potential to transfer their resistance genes to other (pathogenic) bacteria. In this study, 50 commensal Escherichia coli strains originating from food-producing animals and resistant to the "highest priority, critically important antibiotics" cefotaxime and/or ciprofloxacin, were selected for further characterization. For each strain (i) an antibiogram, (ii) the phylogenetic group, (iii) plasmid replicon type, (iv) presence and identification of integrons, and (v) antibiotic resistance transfer ratios were determined...
November 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29148887/wild-birds-as-a-potential-source-of-known-and-novel-multilocus-sequence-types-of-antibiotic-resistant-enterococcus-faecalis
#6
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
#7
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/29147933/aerobic-bacteriological-studies-on-the-respiratory-tracts-of-apparently-healthy-and-pneumonic-camels-camelus-dromedaries-in-selected-districts-of-afar-region-ethiopia
#8
Mu'uz Gebru, Genene Tefera, Fufa Dawo, Tesfaye Sisay Tessema
A cross-sectional study was conducted to isolate and identify bacterial species from the respiratory tract of apparently healthy and pneumonic camels in Asayita and Dubti woredas in the Afar Region, Ethiopia. From a total of 74 lung tissue and 74 tracheal swab samples Staphylococcus aureus, 16.3%, Streptococcus equi subsp. equi, 13.0%, and Pasteurella multocida, 10.9%, were dominant isolates from pneumonic lungs; Escherichia coli, 12.7%, Proteus species, 10.9%, and Klebsiella pneumoniae, 9.1%, were the majority in the normal lungs...
November 16, 2017: Tropical Animal Health and Production
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
#9
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/29146833/draft-genome-sequences-of-eight-streptogramin-resistant-enterococcus-species-isolated-from-animal-and-environmental-sources-in-the-united-states
#10
Poonam Sharma, Sushim Kumar Gupta, John B Barrett, Lari M Hiott, Sandra L House, Tiffanie A Woodley, Jonathan G Frye, Charlene R Jackson
Here, we present the draft genome sequences of eight streptogramin-resistant Enterococcus species isolated from animals and an environmental source in the United States from 2001 to 2004. Antimicrobial resistance genes were identified conferring resistance to the macrolide-lincosamide-streptogramins, aminoglycosides, tetracyclines, beta-lactams, and glycopeptides.
November 16, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29145118/long-term-effects-of-combined-divalent-copper-and-tetracycline-on-the-performance-microbial-activity-and-community-in-a-sequencing-batch-reactor
#11
Zichao Wang, Pinghui Xia, Mengchun Gao, Kedong Ma, Zhiwei Deng, Junfeng Wei, Jing Zhang, Lin Wang, Guoxia Zheng, Yusuo Yang, Jinbo Chen, Yuejing Wang
The long-term effects of combined divalent copper (Cu(II)) and tetracycline (TC) on the performance, microbial activity and community in a sequencing batch reactor (SBR) were investigated. The addition of Cu(II), TC or mixed Cu(II)/TC caused the decrease of the organics and nitrogen removal efficiencies, and their decreased degrees were the lowest at the addition of mixed Cu(II)/TC. The increase of mixed Cu(II)/TC concentrations in the influent did not change the antagonistic effects between Cu(II) and TC on nitrifying and denitrifying activities...
November 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29143669/considerations-for-using-minocycline-vs-doxycycline-for-treatment-of-canine-heartworm-disease
#12
Mark G Papich
BACKGROUND: Doxycycline has been considered the first drug of choice for treating Wolbachia, a member of the Rickettsiaceae, which has a symbiotic relationship with filarial worms, including heartworms. Wolbachia, is susceptible to tetracyclines, which have been used as adjunctive treatments for heartworm disease. Treatment with doxycycline reduces Wolbachia numbers in all stages of heartworms and improves outcomes and decreased microfilaremia in dogs treated for heartworm disease. The American Heartworm Society recommends treatment with doxycycline in dogs diagnosed with heartworm disease at a dose of 10 mg/kg twice daily for 28 days...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29142821/tet-on-lentiviral-transductants-lose-inducibility-when-silenced-for-extended-intervals-in-mammary-epithelial-cells
#13
Yang Yu, Michelle Montag Lowy, Randolph C Elble
Silencing of virally transduced genes by promoter methylation and histone deacetylation has been a chronic problem both experimentally and therapeutically. We observed frequent silencing of the tetracycline-inducible Tet-On promoter borne by the Tripz lentivirus in mammary epithelial cell lines. We found that silencing could be prevented by continuous induction, but uninduced Tet-On gradually became uninducible, suggesting promoter modification. Accordingly, silencing was reversible by a common inhibitor of histone deacetylases, sodium butyrate...
December 2016: Metabolic Engineering Communications
https://www.readbyqxmd.com/read/29142397/chemical-composition-antimicrobial-and-antitumor-potentiality-of-essential-oil-of-ferula-tingitana-l-apiaceae-grow-in-libya
#14
Waleed Elghwaji, Abeer Mohamed El-Sayed, Kadriya S El-Deeb, Aly M ElSayed
Background: Ferula tingitana L. (Apiaceae) has been considered to have abortive and menstruation-inducing properties. It used to treat sore throat, fever, indigestion, and pains. Objectives: The objective of this study is to establish the chemical composition of the essential oil of flower, leaves of F. tingitana, and to throw light on antimicrobial, cytotoxic activities of Libyan plant. Materials and Methods: The chemical composition of the essential oil of flower (0...
October 2017: Pharmacognosy Magazine
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
#15
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/29139611/anti-inflammatory-effects-of-tetracyclines
#16
M Schaller
No abstract text is available yet for this article.
November 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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
#17
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/29138101/primary-antibiotic-resistance-of-helicobacter-pylori-in-chinese-patients-a-multi-region-prospective-7-year-study
#18
Dong-Sheng Liu, You-Hua Wang, Zhi-Rong Zeng, Zhen-Yu Zhang, Hong Lu, Jian-Ming Xu, Yi-Qi Du, Yan Li, Jiang-Bin Wang, San-Ping Xu, Ye Chen, Chun-Hui Lan, Hong Cheng, Ming-de Jiang, Ling-Xia Zhang, Li-Juan Huo, Shi-Yao Chen, Guo-Xin Zhang, Kai-Chun Wu, Xuan Zhu, You-Xiang Chen, Yin Zhu, Xu Shu, Yong Xie, Nong-Hua Lu
OBJECTIVES: To explore the characteristics of H. pylori resistance in China and the association between antibiotic resistance and several clinical factors. METHODS: H. pylori strains were collected from patients in 13 provinces/cities in China between 2010 and 2016. Demographic data including type of disease, geographic area, age, gender and isolation year were collected to analyse their association with antibiotic resistance. Antibiotic resistance was detected using the Epsilometer test and the Kirby-Bauer disk diffusion method...
November 11, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29136545/removal-of-tetracycline-by-fe-ni-bimetallic-nanoparticles-in-aqueous-solution
#19
Haoran Dong, Zhao Jiang, Cong Zhang, Junmin Deng, Kunjie Hou, Yujun Cheng, Lihua Zhang, Guangming Zeng
This study investigated the degradation of tetracycline (TC) by Fe/Ni bimetallic nanoparticles (Fe/Ni BNPs) and nanoscale zero-valent iron (NZVI) in aqueous solution. Results revealed that Fe/Ni BNPs showed much better performance than NZVI. The effects of pH (5, 7 and 9), initial TC concentration and competitive anions (NO3(-), H2PO4(-), SO4(2-) and HCO3(-)) on the removal of TC by Fe/Ni BNPs were investigated. The results indicated that the removal of TC was higher under acidic conditions and the reaction reached equilibrium more quickly at lower initial TC concentrations...
November 8, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29136156/increase-in-antimicrobial-resistance-and-emergence-of-major-international-high-risk-clonal-lineages-in-dogs-and-cats-with-urinary-tract-infection-16-year-retrospective-study
#20
Cátia Marques, Adriana Belas, Andreia Franco, Catarina Aboim, Luís Telo Gama, Constança Pomba
Objectives: To evaluate temporal trends in antimicrobial resistance, over 16 years, in bacteria isolated from dogs and cats with urinary tract infection (UTI) and the clonal lineages of bacteria harbouring critical antimicrobial resistance mechanisms. Methods: Antimicrobial susceptibility testing was conducted for 948 bacteria isolated from dogs and cats with UTI (1999-2014). Resistance mechanisms were detected by PCR, namely ESBL/AmpC in third-generation cephalosporin (3GC)-resistant Escherichia coli and Proteus mirabilis, mecA in methicillin-resistant staphylococci, and aac(6')-Ieaph(2″)-Ia and aph(2″)-1d in high-level gentamicin-resistant (HLGR) enterococci...
November 9, 2017: Journal of Antimicrobial Chemotherapy
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