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Journal articles on the topic 'Antibiotic-resistant strains'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Kolář, M., R. Pantůček, J. Bardoň, et al. "Occurrence of antibiotic-resistant bacterial strains isolated in poultry." Veterinární Medicína 47, No. 2 - 3 (2012): 52–59. http://dx.doi.org/10.17221/5803-vetmed.

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The main goal of the study was to analyse the occurrence of antibiotic-resistant bacterial strains in poultry in the Czech Republic in 1999&ndash;2000. The resistance was determined in 128 selected Escherichia coli, 88 Staphylococcus sp. and 228 Enterococcus sp. strains. The bacterial species were selected to represent gramnegatives and grampositives, the common part of intestinal microflora and also opportunistic pathogens. In Escherichia coli, 97% of strains were found to be resistant to tetracycline, 51% were resistant to ampicillin, and 31% were resistant to piperacillin. Increased fre

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Ślusarczyk, Rafał, Ada Bielejewska, Arkadiusz Bociek, and Martyna Bociek. "Resistance to ceftaroline - 2018 review." European Journal of Biological Research 8, no. 3 (2018): 112–20. https://doi.org/10.5281/zenodo.1304435.

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Ceftaroline is a new fifth generation cephalosporin, active mostly against Gram-positive cocci, e.g. <em>Staphylococcus aureus</em> (including methicillin-resistant <em>Staphylococcus aureus</em>). It is used in treating acute bacterial skin and skin structure infections, community acquired respiratory tract infections and methicillin-resistant <em>S.</em> <em>aureus</em> bacteremia. The main resistance mechanisms of bacteria to β-lactam antibiotics, including ceftaroline, are mutations in PBP2a, PBP3 and PBP4. Clinically significant resistance has been noted among both archived and newly

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Kim, Seryoung, Satomi Masai, Keiji Murakami, et al. "Characteristics of Antibiotic Resistance and Tolerance of Environmentally Endemic Pseudomonas aeruginosa." Antibiotics 11, no. 8 (2022): 1120. http://dx.doi.org/10.3390/antibiotics11081120.

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Antibiotic-resistant bacteria remain a serious public health threat. In order to determine the percentage of antibiotic-resistant and -tolerant Pseudomonas aeruginosa cells present and to provide a more detailed infection risk of bacteria present in the environment, an isolation method using a combination of 41 °C culture and specific primers was established to evaluate P. aeruginosa in the environment. The 50 strains were randomly selected among 110 isolated from the river. The results of antibiotic susceptibility evaluation showed that only 4% of environmental strains were classified as anti

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&NA;. "Combination Antibiotic for Resistant Bacterial Strains." Nurse Practitioner 10, no. 3 (1985): 49–50. http://dx.doi.org/10.1097/00006205-198503000-00007.

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&NA;. "Combination Antibiotic for Resistant Bacterial Strains." Nurse Practitioner 10, no. 3 (1985): 49–50. http://dx.doi.org/10.1097/00006205-198510030-00007.

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Shafiei Seifabadi, Fatemeh, and Majid Baserisalehi. "Plasmid-Mediated Antibiotic-Resistant Pattern of Lactobacillus spp. Isolated From Dairy Products." Avicenna Journal of Clinical Microbiology and Infection 8, no. 1 (2021): 1–4. http://dx.doi.org/10.34172/ajcmi.2021.01.

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Background: Microorganisms have potent activity for transferring antibiotic-resistant genes with either chromosomally- or plasmid-mediated characteristics. The purpose of this study was to isolate Lactobacillus from different commercial products and evaluate their potential in antibiotic-resistant development. Chromosomally-or plasmid-mediated resistant genes were investigated as well. Methods: In total, Lactobacillus strains were isolated from 20 commercial dairy product samples such as cheese and yoghurt. The isolates were phenotypic and molecularly identified and their antibiotic-resistant

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Pepi, Milva. "Antibiotic Resistant Bacteria and Antibiotic Resistance Genes in Wildlife and their Spread, Focus on the Mediterranean Basin." Corpus Journal of Dairy and Veterinary Science (CJDVS) 3, no. 1 (2022): 1–8. http://dx.doi.org/10.54026/cjdvs1032.

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Overuse of antibiotics in hospitals, animal husbandry and agriculture significantly contributed to the onset of antibiotic resistance. The subsequent spread of antibiotic-resistant bacteria and antibiotic-resistant genes contributed to aggravating the problem. An important contributor to the spread of antibiotic resistance is wildlife, which is ubiquitous and can move easily, thus contributing to the global spread of antibiotic resistant bacteria and antibiotic resistance genes. The first antibiotic-resistant bacteria isolated from wildlife were strains of Escherichia coli obtained from pigeon

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Mien, Pham Thi, Dao Viet Ha та Nguyen Kim Hanh. "KHẢ NĂNG KHÁNG KHÁNG SINH CỦA VI KHUẨN BIỂN TẠI HÒN MỘT VỊNH NHA TRANG". Tạp chí Khoa học và Công nghệ Biển 17, № 4 (2018): 480–89. http://dx.doi.org/10.15625/1859-3097/17/4/8672.

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Drug resistance is now an issue of deep scientific concern all over the world as more antibiotic resistant bacteria have been detected in many regions and countries in recent years. Using of antibiotics for aquaculture is quite common in developing countries including Vietnam. This causes the spread of antibiotic resistant bacteria in the environment. Testing of antibiotic resistant bacteria was carried out in commercial marine aquaculture and tourist zones in Hon Mot in the Nha Trang bay with five different antibiotics namely chloramphenicol, tetracycline, cefazolin, streptomycin, and gentami

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Heß, Stefanie, and Claudia Gallert. "Sensitivity of antibiotic resistant and antibiotic susceptible Escherichia coli, Enterococcus and Staphylococcus strains against ozone." Journal of Water and Health 13, no. 4 (2015): 1020–28. http://dx.doi.org/10.2166/wh.2015.291.

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Tolerance of antibiotic susceptible and antibiotic resistant Escherichia coli, Enterococcus and Staphylococcus strains from clinical and wastewater samples against ozone was tested to investigate if ozone, a strong oxidant applied for advanced wastewater treatment, will affect the release of antibiotic resistant bacteria into the aquatic environment. For this purpose, the resistance pattern against antibiotics of the mentioned isolates and their survival after exposure to 4 mg/L ozone was determined. Antibiotic resistance (AR) of the isolates was not correlating with higher tolerance against o

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Davies, Nicholas G., Stefan Flasche, Mark Jit, and Katherine E. Atkins. "Modeling the effect of vaccination on selection for antibiotic resistance in Streptococcus pneumoniae." Science Translational Medicine 13, no. 606 (2021): eaaz8690. http://dx.doi.org/10.1126/scitranslmed.aaz8690.

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Vaccines against bacterial pathogens can protect recipients from becoming infected with potentially antibiotic-resistant pathogens. However, by altering the selective balance between antibiotic-sensitive and antibiotic-resistant bacterial strains, vaccines may also suppress—or spread—antibiotic resistance among unvaccinated individuals. Predicting the outcome of vaccination requires knowing what drives selection for drug-resistant bacterial pathogens and what maintains the circulation of both antibiotic-sensitive and antibiotic-resistant strains of bacteria. To address this question, we used m

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Karunakaran, Ponniah, and Julian Davies. "Genetic Antagonism and Hypermutability inMycobacterium smegmatis." Journal of Bacteriology 182, no. 12 (2000): 3331–35. http://dx.doi.org/10.1128/jb.182.12.3331-3335.2000.

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ABSTRACT Multidrug-resistant strains of Mycobacterium tuberculosis are a serious and continuing human health problem. Such strains may contain as many as four or five different mutations, and M. tuberculosis strains that are resistant to both streptomycin and rifampin contain mutations in the rpsL andrpoB genes, respectively. Coexisting mutations of this kind in Escherichia coli have been shown to interact negatively (S. L. Chakrabarti and L. Gorini, Proc. Natl. Acad. Sci. USA 72:2084–2087, 1975; S. L. Chakrabarti and L. Gorini, Proc. Natl. Acad. Sci. USA 74:1157–1161, 1977). We investigated t

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Roberts, Marilyn C., Rebecca B. Leonard, Ann Briselden, Fritz D. Schoenknecht, and Marie B. Coyle. "Characterization of antibiotic-resistant Corynebacterium striatum strains." Journal of Antimicrobial Chemotherapy 30, no. 4 (1992): 463–74. http://dx.doi.org/10.1093/jac/30.4.463.

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Albuquerque Costa, Renata, Rayza Lima Araújo, Oscarina Viana Souza, and Regine Helena Silva dos Fernandes Vieira. "Antibiotic-Resistant Vibrios in Farmed Shrimp." BioMed Research International 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/505914.

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Antimicrobial susceptibility pattern was determined in 100 strains ofVibrioisolated from theLitopenaeus vannameishrimp and identified phenotypically. A high antibiotic-resistance index (75%) was observed, with the following phenotypic profiles: monoresistance (n=42), cross-resistance toβ-lactams (n=20) and multiple resistance (n=13). Plasmid resistance was characterized for penicillin (n=11), penicillin + ampicillin (n = 1), penicillin + aztreonam (n = 1), and ampicillin (n = 1). Resistance to antimicrobial drugs by the other strains (n=86) was possibly mediated by chromosomal genes. The findi

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Cha, Xiaoyan, Yingting Lin, Charles Brennan, Jianxin Cao, and Ying Shang. "Antibiotic Resistance of Bacillus cereus in Plant Foods and Edible Wild Mushrooms in a Province." Microorganisms 11, no. 12 (2023): 2948. http://dx.doi.org/10.3390/microorganisms11122948.

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Bacillus cereus is a common pathogen causing foodborne diseases, secreting and producing a large number of toxins that can cause a variety of diseases and pose many threats to human health. In this study, 73 strains of Bacillus cereus were isolated and identified from six types of foods from seven different cities in a province, and the antibiotic-resistant phenotype was detected by using the Bauer–Kirby method. Results showed that the 73 isolates were completely sensitive to gentamicin and 100% resistant to chloramphenicol, in addition to which all strains showed varying degrees of resistance

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Pradhananga, Anjani, Lorena Benitez-Rivera, Candace Clark, Kaho H. Tisthammer, and Pleuni S. Pennings. "Evidence for sweep signatures in antibiotic-resistant strains in three species of bacteria." PeerJ 12 (October 24, 2024): e18178. http://dx.doi.org/10.7717/peerj.18178.

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Over the last decades antibiotic resistance has evolved and spread in many different bacterial species. From an evolutionary perspective, drug resistance is an adaptation to a new environment. Population genetic theory predicts that recent adaptations are associated with reduced diversity in the part of the population that carries the adaptive trait, due to a process known as selective sweeps. It is not known if this prediction holds for antibiotic resistance in bacterial species that infect humans. Here, we use a convenience sample of eight datasets covering three species of bacteria (Escheri

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Korona-Glowniak, Izabela, Radoslaw Siwiec, and Anna Malm. "Resistance Determinants and Their Association with Different Transposons in the Antibiotic-ResistantStreptococcus pneumoniae." BioMed Research International 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/836496.

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Multiple resistance ofStreptococcus pneumoniaeis generally associated with their unique recombination-mediated genetic plasticity and possessing the mobile genetic elements. The aim of our study was to detect antibiotic resistance determinants and conjugative transposons in 138 antibiotic-resistant pneumococcal strains isolated from nasopharynx of healthy young children from Lublin, Poland. These strains resistant to tetracycline and/or to chloramphenicol/erythromycin/clindamycin were tested by PCR using the specific genes as markers. The presence of Tn916family transposons, carryingtet(M) and

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Blasi, Monica Francesca, Luciana Migliore, Daniela Mattei, Alice Rotini, Maria Cristina Thaller, and Rosa Alduina. "Antibiotic Resistance of Gram-Negative Bacteria from Wild Captured Loggerhead Sea Turtles." Antibiotics 9, no. 4 (2020): 162. http://dx.doi.org/10.3390/antibiotics9040162.

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Sea turtles have been proposed as health indicators of marine habitats and carriers of antibiotic-resistant bacterial strains, for their longevity and migratory lifestyle. Up to now, a few studies evaluated the antibacterial resistant flora of Mediterranean loggerhead sea turtles (Caretta caretta) and most of them were carried out on stranded or recovered animals. In this study, the isolation and the antibiotic resistance profile of 90 Gram negative bacteria from cloacal swabs of 33 Mediterranean wild captured loggerhead sea turtles are described. Among sea turtles found in their foraging site

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Hanh, Nguyen Kim, Nguyen Trinh Duc Hieu, Nguyen Minh Hieu, et al. "Antibiotics resistance in pathogenic bacteria isolated from water and sediment around the floating fish farms in the Nha Trang bay." Tạp chí Khoa học và Công nghệ biển 20, no. 4A (2021): 199–209. http://dx.doi.org/10.15625/1859-3097/15661.

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To assess the impact of antibiotic use in aquaculture in Nha Trang bay, we conducted this study with the aim of assessing antibiotic resistance of opportunistic pathogenic bacteria isolated from water and sediment around shrimp/fish cages in the Nha Trang bay. 109 strains of Vibrio, Salmonella-Shigella and Aeromonas groups were isolated in the surrounding environment of farming areas in Dam Bay and Hon Mieu. Antimicrobial resistance test of these 109 strains showed that in the water environment in Dam Bay, TET (96.6%) and NIT (92.5%) were the two antibiotics with the highest rates of resistant

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KIM, SEOKHWAN, HANSOL KIM, YONGHOON KIM, MIGYEONG KIM, HYOSUN KWAK, and SANGRYEOL RYU. "Antimicrobial Resistance of Escherichia coli from Retail Poultry Meats in Korea." Journal of Food Protection 83, no. 10 (2020): 1673–78. http://dx.doi.org/10.4315/jfp-20-150.

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ABSTRACT Antimicrobial-resistant bacteria in poultry meat pose a threat to public health. This article is the first to report the prevalence of antimicrobial-resistant Escherichia coli in retail poultry meat labeled with various claims of antibiotic use in Korea. A total of 719 E. coli strains were isolated from 1,107 raw poultry (chicken and duck) meat samples purchased from nationwide retail stores between 2017 and 2019. All strains were tested for antimicrobial susceptibility with a broth microdilution method. The prevalence of antimicrobial-resistant E. coli in chicken was significantly hi

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Lutsky, Dmitry L., Adelya M. Lutskaya, Sergey V. Vybornov, and Ramil M. Mahmudov. "Biochemical and morphofunctional study of sperm of men infected with antibiotic-resistant strains of Ureaplasma urealyticum." Journal of Clinical Practice 12, no. 2 (2021): 21–29. http://dx.doi.org/10.17816/clinpract71584.

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Background: The role of UU in the pathogenesis of male infertility is currently not fully understood. Despite the widespread occurrence of antibiotic-resistant UU strains, there are virtually no data on their effect on the morphofunctional characteristics of the sperm and the biochemical parameters of the ejaculate. Aims: Comprehensive evaluation of the sperm fertility in men infected with antibiotic-resistant UU strains. Methods: The semen of men of active reproductive age (n=4752, age from 18 to 46 years, with the average age of 27.84.4 years) was studied. In the semen samples, UU was detect

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Su, Pai-Wei, Emirlyn Cheng Yang, Sin-Hua Moi, Cheng-Hong Yang, and Li-Yeh Chuang. "Prevalence of Carbapenem Resistance Genes among Acinetobacter baumannii Isolated from a Teaching Hospital in Taiwan." Antibiotics 12, no. 9 (2023): 1357. http://dx.doi.org/10.3390/antibiotics12091357.

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The problem of antibiotic-resistant strains has become a global public issue; antibiotic resistance not only limits the choice of treatments but also increases morbidity, mortality and treatment costs. The multi-drug resistant Acinetobacter baumannii is occurring simultaneously in hospitals and has become a major public health issue worldwide. Although many medical units have begun to control the use of antibiotics and paid attention to the issue of drug resistance, understanding the transmission pathways of clinical drug-resistant bacteria and drug-resistant mechanisms can be effective in rea

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Startseva, Y. D., D. M. Hodyna, I. V. Semenyuta, O. P. Tarasyuk, S. P. Rogalsky, and L. O. Metelytsia. "Undecylenic acid and N,N-dibutylundecenamide as effective antibacterials against antibiotic-resistant strains." Ukrainian Biochemical Journal 95, no. 4 (2023): 55–63. http://dx.doi.org/10.15407/ubj95.04.055.

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Evaluation of undecylenic acid (UA) and its tertiary amide N,N-dibutylundecenamide (DBUA) activity in vitro against the standard and antibiotic-resistant Escherichia coli and Staphylococcus aureus strains was carried out. The antibacterial potential of the acid and its amide at 2.5 and 5.0 μM concentration both against gram-positive bacteria (S. aureus) and gram-negative (E. coli) cultures was confirmed by monitoring the diameter of the bacterial growth inhibition zones. The docking study identified methionine aminopeptidase (MAP) as the most energy-favorable potential biotarget associated wi

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Haider, Ali, Renáta Homlok, Csilla Mohácsiné Farkas, and Tamás Kocsis. "Characterizing Antimicrobial Effects of Radiation and Antibiotic Interactions on Staphylococcus aureus and Escherichia coli Using MALDI-TOF MS." Antibiotics 14, no. 1 (2025): 41. https://doi.org/10.3390/antibiotics14010041.

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Background/Objectives: Antibiotic-resistant bacteria are becoming a major challenge in human and veterinary medicine, as well as in food processing. Methods: In this study, the protein diversity in antibiotic-sensitive and -resistant strains of Staphylococcus aureus and Escherichia coli was investigated by exposing them to varying doses of gamma irradiation, with and without antibiotic presence. Changes in bacterial protein profiles were characterized using MALDI-TOF MS to reveal dose-dependent adaptations and potentiation effects under combined irradiation and antibiotic treatments. Results:

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H, Khan. "Targeting Superbugs: Efficacy of Bacteriophage Therapy against Antibiotic-Resistant Pseudomonas Aeruginosa in Urinary Tract Infections." Annals of Experimental and Molecular Biology 6, no. 1 (2024): 1–7. http://dx.doi.org/10.23880/aemb-16000129.

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The rise of antibiotic-resistant bacterial infections poses a significant challenge to global health, particularly in the treatment of urinary tract infections (UTIs). This study evaluates the potential of bacteriophage therapy as an alternative treatment against antibiotic-resistant Pseudomonas Aeruginosa isolated from UTI samples. We isolated 12 strains of P. aeruginosa from 50 UTI samples and conducted extensive antibiotic susceptibility testing, revealing significant resistance to multiple conventional antibiotics such as Tetracycline, Septran, Ceftazidime, and Cefepime, while showing susc

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Li, Fei, Danna Chen, Lijuan Li, Dezhi Liang, Fengping Wang та Bashan Zhang. "Analysis of Metallo-β-lactamases, oprD Mutation, and Multidrug Resistance of β-lactam Antibiotic-Resistant Strains of Pseudomonas aeruginosa Isolated from Southern China". Current Microbiology 77, № 11 (2020): 3264–69. http://dx.doi.org/10.1007/s00284-020-02148-3.

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Abstract The purpose of this study was to analyze the metallo-β-lactamases (MBLs) genotype and oprD mutations of the β-lactam antibiotic-resistant Pseudomonas aeruginosa (PA) strains isolated from southern China. We collected 110 strains of β-lactam antibiotic-resistant PA from 2 hospitals during January 2016–December 2017 from Dongguan, South China. MBLs were detected, amplified, and typed using EDTA disc synergy test, PCR, and Sanger gene sequencing. The mutations and expression levels of oprD were detected using Sanger gene sequencing and qPCR. A total of 16.36% (18/110) β-lactam antibiotic

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Basak, Silpi, Priyanka Singh, and Monali Rajurkar. "Multidrug Resistant and Extensively Drug Resistant Bacteria: A Study." Journal of Pathogens 2016 (2016): 1–5. http://dx.doi.org/10.1155/2016/4065603.

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Background and Objective. Antimicrobial resistance is now a major challenge to clinicians for treating patients. Hence, this short term study was undertaken to detect the incidence of multidrug-resistant (MDR), extensively drug-resistant (XDR), and pandrug-resistant (PDR) bacterial isolates in a tertiary care hospital.Material and Methods. The clinical samples were cultured and bacterial strains were identified in the department of microbiology. The antibiotic susceptibility profile of different bacterial isolates was studied to detect MDR, XDR, and PDR bacteria.Results. The antibiotic suscept

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Templeton, Michael R., Francine Oddy, Wing-kit Leung, and Michael Rogers. "Chlorine and UV disinfection of ampicillin-resistant and trimethoprim-resistant Escherichia coliA paper submitted to the Journal of Environmental Engineering and Science." Canadian Journal of Civil Engineering 36, no. 5 (2009): 889–94. http://dx.doi.org/10.1139/l09-040.

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This bench-scale study investigated whether strains of Escherichia coli that are resistant to two common types of antibiotics, ampicillin and trimethoprim, possess increased resistance to two common disinfectants in water and wastewater treatment, free chlorine and ultraviolet disinfection, relative to an antibiotic-sensitive strain of E. coli isolated from sewage sludge. Trimethoprim-resistant E. coli was slightly more resistant to chlorine than the antibiotic-sensitive isolate and the ampicillin-resistant E. coli under the study conditions (95% confidence), however this difference would not

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Klugman, Keith P., and Steven Black. "Impact of existing vaccines in reducing antibiotic resistance: Primary and secondary effects." Proceedings of the National Academy of Sciences 115, no. 51 (2018): 12896–901. http://dx.doi.org/10.1073/pnas.1721095115.

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Vaccines impact antibiotic-resistant infections in two ways: through a direct reduction in the organisms and strains carrying resistant genes that are specifically targeted by the vaccine and also via a secondary effect through a reduction in febrile illnesses that often lead to the use of antibiotics. We review here the impact of pneumococcal conjugate vaccines (PCVs) on the prevalence of antibiotic-resistant disease and antibiotic usage as an example of the direct effect of vaccines on antibiotic resistance and the impact of influenza vaccination on antibiotic usage as an example of a second

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Mohammed, Waleed, Fatimah Abdulazeez Awad, and Thana I. Mustafa. "The Importance of Klebsiella pneumoniae as a Pathogen and the Increasing Prevalence of Antibiotic-Resistant Strains and Molecular Characteristics." Baghdad Journal of Biochemistry and Applied Biological Sciences 4, no. 4 (2023): 180–203. http://dx.doi.org/10.47419/bjbabs.v4i04.211.

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Klebsiella pneumoniae is a significant pathogen causing various infections, and antibiotic-resistant strains of K.pneumoniae are becoming more prevalent. Molecular studies reveal the genetic mechanisms underlying antibiotic resistance, such as resistance genes on plasmids that can easily spread between bacteria. Knowledge of the molecular characteristics of antibiotic-resistant strains is crucial to develop effective strategies against their spread. The bacteria can easy colonizes the human gut and can also cause a range of infections, including pneumonia, urinary tract infections, and bloodst

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GUAN, JIEWEN, MARIA CHAN, BÉATRICE ALLAIN, ROSEMONDE MANDEVILLE, and BRIAN W. BROOKS. "Detection of Multiple Antibiotic–Resistant Salmonella enterica Serovar Typhimurium DT104 by Phage Replication–Competitive Enzyme-Linked Immunosorbent Assay." Journal of Food Protection 69, no. 4 (2006): 739–42. http://dx.doi.org/10.4315/0362-028x-69.4.739.

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A phage replication–competitive enzyme-linked immunosorbent assay (PR-cELISA) was developed for the detection of multiple antibiotic–resistant Salmonella Typhimurium DT104. In the PR-cELISA procedure, a phage, BP1, was inoculated into a log-phase bacterial culture at a ratio of 1:100. After a 3-h incubation of the mixture, BP1 replication was measured by cELISA based on the competitive binding between BP1 and biotinylated BP1 to Salmonella Typhimurium smooth lipopolysaccharide. Among the 84 Salmonella strains and 9 non-Salmonella strains that were tested by PR-cELISA, BP1 detected 39 of 40 Sal

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Shil, A., B. Bishayi, and M. Sikdar (ne’e Bhakta). "Prevalence of community-associated Staphylococcus aureus strains among university students." Progress in Health Sciences 11, no. 2 (2021): 65–75. http://dx.doi.org/10.5604/01.3001.0015.6400.

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Colonization of multiple antibiotic resistant Staphylococcus aureus (S. aureus) in nasal cavity is associated with heightened risk of infections. The emergence and spread of multiple antibiotic resistant community-associated (MAR-CA) S. aureus strains has worsened the situation. The aim of this study was to assess the rate of prevalence and patterns of antibiotic resistance in S. aureus strains isolated from members of the student community in Presidency University, Kolkata, India,.

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Kim, Tae Woon, Yochan Joung, Ji-Hye Han, Wonwha Jung, and Seung Bum Kim. "Antibiotic resistance among aquatic bacteria in natural freshwater environments of Korea." Journal of Water and Health 13, no. 4 (2015): 1085–97. http://dx.doi.org/10.2166/wh.2015.032.

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The taxonomic diversity and antibiotic resistance among freshwater bacterial communities in the major water bodies of Korea was examined using 437 penicillin-resistant, and 110 tetracycline-resistant bacterial isolates. Based on 16S rRNA gene sequence analysis, most isolates were assigned to Proteobacteria, which was then followed by Bacteroidetes. Strains of Aeromonas were found as the most abundant penicillin-resistant populations, whereas those affiliated to diverse species including enteric groups were found as the most abundant tetracycline-resistant populations. Most strains exhibited mu

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Bonda, N. A., I. О. Stoma, O. V. Osipkina, et al. "Molecular genetic markers of resistance and virulence of invasive Klebsiella pneumoniae strains according to whole genome sequencing data." Health and Ecology Issues 20, no. 1 (2023): 7–15. http://dx.doi.org/10.51523/2708-6011.2023-20-1-01.

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Objective. To evaluate genetic mechanisms of antibiotic resistance and virulence of invasive strains of Klebsiella pneumoniae isolated from inpatients using whole genome sequencing.Materials and methods. For two carbapenem-resistant multiple-antibiotic-resistant invasive strains of K.pneumoniae, as well as two carbapenem-sensitive invasive strains of K.pneumoniae, sequencing was performed using the MiSeq genomic sequencer (Illumina). Genomic sequences were assembled and annotated. Sequence type determination, search for plasmids and virulence factors, antibiotic resistance genes, and efflux me

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Ghenea, Alice Elena, Ovidiu Mircea Zlatian, Oana Mariana Cristea, et al. "TEM,CTX-M,SHV Genes in ESBL-Producing Escherichia coli and Klebsiella pneumoniae Isolated from Clinical Samples in a County Clinical Emergency Hospital Romania-Predominance of CTX-M-15." Antibiotics 11, no. 4 (2022): 503. http://dx.doi.org/10.3390/antibiotics11040503.

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Background: CTX-M betalactamases have shown a rapid spread in the recent years among Enterobacteriaceae and have become the most prevalent Extended Spectrum Beta-Lactamases (ESBLs) in many parts of the world. The introduction and dissemination of antibiotic-resistant genes limits options for treatment, increases mortality and morbidity in patients, and leads to longer hospitalization and expensive costs. We aimed to identify the beta-lactamases circulating encoded by the genes blaCTX-M-15, blaSHV-1 and blaTEM-1 in Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae) strains. Fu

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Horseman, Tim, Carmen Campbell, Grace Gomes, and Keith Fong. "Using Electric Cell-Substrate Impedance Sensing (ECIS) as a novel method to evaluate bacterial urinary tract infections." Journal of Immunology 204, no. 1_Supplement (2020): 82.16. http://dx.doi.org/10.4049/jimmunol.204.supp.82.16.

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Abstract Urinary tractinfections (UTIs) are commonly acquired bacterial infections that cause significant morbidity, worsened by the rise of antimicrobial resistance among uropathogenic bacteria. Understanding the dynamics of bacterial UTIs is essential to the proper use of antimicrobial therapies in patient treatment. In this study, Electric Cell-Substrate Impedance Sensing (ECIS) technology was used to monitor bacterial-mediated cytotoxicity in-vitro enabling evaluation of antibiotics. Using the ECIS system, real-time changes of barrier function were recorded for human bladder epithelial cel

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Yurdakul, N. E., Z. Erginkaya, and E. Ünal. " Antibiotic resistance of enterococci, coagulase negative staphylococci and Staphylococcus aureus isolated from chicken meat." Czech Journal of Food Sciences 31, No. 1 (2013): 14–19. http://dx.doi.org/10.17221/58/2012-cjfs.

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We determined the antibiotic resistance of enterococci, coagulase negative staphylococci, and Staphylococcus aureus isolated from chicken meat samples. The antibiotic resistance of the isolated strains was estimated by the Kirby-Bauer disk diffusion method (according to the NCCLS document M2-A9 suggestions). It was found that all strains of Enterococcus spp. were resistant to tetracycline, 75% of them were resistant to ciprofloxacin, and 50% of them were resistant to erythromycin, vancomycin, and chloramphenicol. Also all strains of S. aureus were resistant to tetracycline and 25% of S. aureus

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JANA, T. K., R. D. BANERJEE, SUSMITA LAHIRI, and B. B. JANA. "Management induced changes of antibiotic resistant strains of heterotrophic bacteria in shrimp farming ponds." Indian Journal of Animal Sciences 84, no. 3 (2014): 323–28. http://dx.doi.org/10.56093/ijans.v84i3.38721.

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Antibiotic resistant strains of heterotrophic bacteria and total aerobic heterotrophic bacteria were enumerated along with important water quality parameters in water and sediment samples collected from 3 shrimp farming ponds used for the monoculture of Penaeus monodon as well as from a control pond located outside the shrimp farm. The resistant strains of heterotrophic bacteria were screened against 3 antibiotics (ampicillin, chloramphenicol and oxytetracycline) at 25 and 50 μg/l. The counts of antibiotic resistant bacteria tended to rise in shrimp ponds with progressive rise in the days of c

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Dang, Huong Thu, Huy Son Dinh, Tu Anh Loc, and La Anh Nguyen. "Antibiotic resistance characteristics of potential probiotic Lactobacillus strains." Vietnam Journal of Science and Technology 61, no. 6 (2023): 975–83. http://dx.doi.org/10.15625/2525-2518/17261.

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Antibiotic-resistant bacteria are increasingly common and threaten human health. Recently, antibiotic resistance in food associated bacteria become an emerging threat to this state. These bacteria may act as reservoirs of antibiotic resistance genes and transfer to commensal or pathogenic bacteria in the human intestines. Therefore, either probiotics or starter cultures have to be evaluated for antibiotic interaction. In this study, the antibiotic susceptibility of seven Lactobacillus strains was determined. The MIC values revealed that all strains were resistant to tetracycline, ciprofloxacin

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ChajÄ™cka-Wierzchowska, Wioleta, Anna Zadernowska, and Ĺucja Ĺaniewska-Trokenheim. "STAPHYLOCOCCUS AUREUS FROM READY-TO-EAT FOOD AS A SOURCE OF MULTIPLE ANTIBIOTIC RESISTANCE GENES." CBU International Conference Proceedings 5 (September 24, 2017): 1108–12. http://dx.doi.org/10.12955/cbup.v5.1079.

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The emergence of antibiotic-resistant strains of S. aureus such as methicillin-resistant S. aureus (MRSA) is a worldwide problem. Ready-to-eat (RTE) food which does not need thermal processing before consumption could be a vehicle for the spread of antibiotic-resistant microorganisms. The present study evaluated the molecular genetic characteristics (RAPD) and pheno- and genotypical antimicrobial resistance profile of S. aureus isolated from 75 RTE food samples (sushi, hamburgers, salads). All of the isolates (n=32) were resistant to at least one class of antibiotic tested of which 75% strains

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Masaaki Minami, Takafumi Ando, Hidemi Goto, and Michio Ohta. "Effect of mupirocin in Helicobacter pylori in vitro." GSC Advanced Research and Reviews 8, no. 1 (2021): 160–65. http://dx.doi.org/10.30574/gscarr.2021.8.1.0154.

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Mupirocin (MUP) is an effective antibiotic against MRSA. Its bactericidal effect is stable under acid condition. By validating its antibacterial effect of Helicobacter pylori, we try to clarify MUP effect on H. pylori. The present study was conducted to investigate the effect of MUP on clarithromycin (CLR) / metronidazole (MNZ) -resistant and -susceptible strains of H. pylori, the time-kill effect of MUP, and the post antibiotic effect (PAE). We investigated the minimal inhibitory concentration (MIC) and the minimal bactericidal effect (MBC) of MUP against 140 H. pylori, which include clinical

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Gladin, D. P., A. R. Khairullina, A. M. Korolyuk, N. S. Kozlova, O. V. Ananyeva, and O. G. Gorbunov. "Strain diversity and antibiotic-sensitivity of staphylococcus spp. Isolates from patients of multiprofile pediatric hospital in St. Petersburg, Russia." Pediatrician (St. Petersburg) 12, no. 4 (2021): 15–25. http://dx.doi.org/10.17816/ped12415-25.

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Background. Staphylocci are the leading pus-forming Gram-positive bacteria in the childrens hospitals. The prevalence of the antibiotic resistant strains among them limits therapeutic effects of infections in children. Aim. The research is aimed at characterizing the species of staphylococcus, which are isolated from the different clinical specimens of the patients at the clinics of Saint Petersburg State Pediatric Medical University in 2019, and analysis of their susceptibility to antimicrobial agents. Materials and metods. According to the clinical recommendations of 2018, suscep

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Anuarbekova, S. S., and I. K. Tynybayeva. "The problem of antibiotic-resistant strains and its solution." BULLETIN OF THE L.N. GUMILYOV EURASIAN NATIONAL UNIVERSITY. BIOSCIENCE SERIES 148, no. 3 (2024): 58–80. http://dx.doi.org/10.32523/2616-7034-2024-148-3-58-80.

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Antibiotic resistance is a global health problem around the world and is a type of antimicrobial resistance. Solving it requires concerted efforts on a global scale. The main antibiotic-resistant microorganisms are Enterococcus spp., Staphylococcus aureus, Klebsiella pneumonia, Acinetobacter baumannii, Pseudomonas aeruginosa, Escherichia coli, Helicobacter pylori. Many countries have programs aimed at preventing the development of antibiotic resistance, as well as stimulating the development of new drugs with antimicrobial activity. Many scientific works are devoted to this topic. The rational

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Truyen, Hue N. D., Thanh Khuu, Nhu Do, and Thu Tran. "Antibiotic resistance of Escherichia coli isolated from the white-leg shrimp (Litopenaeus vannamei) collected from Binh Dien Agricultural Wholesale Market." Journal of Agriculture and Development 20, no. 05 (2022): 47–52. http://dx.doi.org/10.52997/jad.1.05.2021.

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This study was conducted to determine the rate of antibiotic resistance, multiple antibiotic resistance of 60 E. coli strains isolated from white-leg shrimp (Litopenaeus vannamei) collected from Binh Dien Agricultural Wholesale Market in Ho Chi Minh City. Should have a short description how to perform the study here Within10 examined antibiotics, those E. coli strains showed a high resistant level to ampicillin (96.7%), streptomycin (70.0%), kanamycin (66.7%), nalidixic acid (60.0%), tetracyclines và trimethoprim/sulfamethoxazole (56.7%), ciprofloxacin (61.7%), chloramphenicol (43.3%). The per

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Kvashnina, D. V., I. Yu Shirokova, N. A. Belyanina, et al. "Photodynamic Inactivation as a Promising Method of Combating Resistant Strains of Staphylococci." Epidemiology and Vaccinal Prevention 23, no. 3 (2024): 19–26. http://dx.doi.org/10.31631/2073-3046-2024-23-3-19-26.

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Relevance. The development of antimicrobial drugs and alternative methods, technologies and means of prevention, diagnosis and treatment of human infectious diseases caused by antibiotic-resistant microorganisms is one of the priorities of ensuring the biological safety of the country. Aims. To evaluate the bactericidal activity of tetrapyrrole macroheterocycles (porphyrins) at different light irradiation durations in relation to staphylococci, in vitro. Materials and methods. Studied strains of microorganisms: museum strains of microorganisms – S. aureus ATCC 29213, S. epidermidis ATCC 14990

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Ferdous, Sadia, K. Shayer, Afia Anjum, et al. "Genomic insights into multidrug-resistant Acinetobacter baumannii strains isolated from Dhaka, Bangladesh." Journal of Advanced Biotechnology and Experimental Therapeutics 8, no. 1 (2025): 64. https://doi.org/10.5455/jabet.2025.06.

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Acinetobacter baumannii is one of the most common nosocomial infections causing pathogens. Multidrug-resistant (MDR) A. baumannii is a growing concern to the healthcare system in Bangladesh, necessitating the elucidation of the genetic characteristics of this species. Five MDR, biofilm-forming A. baumannii strains isolated from clinical samples in Dhaka, Bangladesh, underwent a comprehensive whole-genome shotgun sequencing. In silico analyses determined strain types, antibiotic resistance, and virulence genes. The phylogenomic and pan-genome comparative analysis included the study samples alon

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Symochko, Lyudmyla, Olena Demyanyuk, Vitaliy Symochko, Daniela Grulova, Jozef Fejer, and Ruslan Mariychuk. "The Spreading of Antibiotic-Resistant Bacteria in Terrestrial Ecosystems and the Formation of Soil Resistome." Land 12, no. 4 (2023): 769. http://dx.doi.org/10.3390/land12040769.

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Terrestrial ecosystems play a crucial role in the formation of soil resistome and the spread of antibiotic-resistant bacteria. Comprehensive studies of soil microbial communities, their structure, integrity, and level of antibiotic resistance (AR) in various terrestrial ecosystems were conducted. In total, 389 strains of dominant bacteria were isolated from the studied ecosystems, 57 of which were resistant to antibiotics, with levels of antibiotic resistance exceeding 70%. The soil microbiome of primeval forests was characterized by a low content of bacteria resistant to antibiotics; only two

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Garg, F. C., N. Beri, and P. Tauro. "Intrinsic antibiotic resistance in chickpea (Cicer arietinum) rhizobia." Journal of Agricultural Science 105, no. 1 (1985): 85–89. http://dx.doi.org/10.1017/s0021859600055751.

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SUMMARYMore than 200 wild type isolates of chickpea (C. arietinum) rhizobia were screened for their drug resistance. Only 15 were found to be resistant to one or more antibiotics at a concentration of 5 μg/ml (units/ml). When tested for multiple drug resistance, some were found to be resistant to more than one antibiotic. In competition studies, rhizobia resistant to streptomycin were found to be more competitive than antibioticsensitive strains, while those resistant to penicillin could not compete even with antibiotic-sensitive strains.

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Letten, Andrew D., Michael Baumgartner, Katia R. Pfrunder-Cardozo, Jonathan M. Levine, and Alex R. Hall. "Human-associated microbiota suppress invading bacteria even under disruption by antibiotics." ISME Journal 15, no. 9 (2021): 2809–12. http://dx.doi.org/10.1038/s41396-021-00929-7.

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AbstractIn light of their adverse impacts on resident microbial communities, it is widely predicted that broad-spectrum antibiotics can promote the spread of resistance by releasing resistant strains from competition with other strains and species. We investigated the competitive suppression of a resistant strain of Escherichia coli inoculated into human-associated communities in the presence and absence of the broad and narrow spectrum antibiotics rifampicin and polymyxin B, respectively. We found strong evidence of community-level suppression of the resistant strain in the absence of antibio

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Jernberg, Cecilia, Sonja Löfmark, Charlotta Edlund, and Janet K. Jansson. "Long-term impacts of antibiotic exposure on the human intestinal microbiota." Microbiology 156, no. 11 (2010): 3216–23. http://dx.doi.org/10.1099/mic.0.040618-0.

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Although it is known that antibiotics have short-term impacts on the human microbiome, recent evidence demonstrates that the impacts of some antibiotics remain for extended periods of time. In addition, antibiotic-resistant strains can persist in the human host environment in the absence of selective pressure. Both molecular- and cultivation-based approaches have revealed ecological disturbances in the microbiota after antibiotic administration, in particular for specific members of the bacterial community that are susceptible or alternatively resistant to the antibiotic in question. A disturb

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Raji, Mudasiru Iyanda Omowale, and Mustapha Hussain Jiya. "Antibiotic susceptibility profile of bacteria isolated from packaged milk products sold in Sokoto, Nigeria: The resistant strains." GSC Biological and Pharmaceutical Sciences 9, no. 1 (2019): 104–9. https://doi.org/10.5281/zenodo.4284183.

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Antibiotics are generally the drug of choice in the treatment of various infections both in humans and animals. But the overuse and misuse of antibiotics in animal production and human medicine have led to the development of vast amount of resistant organisms difficult to treat with antibiotics and thereby posing serious health complications. This study was conducted to examine the antibiotic profile of bacteria isolated from packaged milk products sold in Sokoto metropolis in order to determine possibility of resistant strains. Forty-six bacteria from packaged milk products were subjected to

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