Wszystkie pola: antibiotic susceptibility - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Antibiotic Susceptibility Profiling of Bacterial Biodiversity Associated with Urinary Tract Infections
Autorzy:: Prasad, Bhairav
Arora, Priya
Powiązania:: https://bibliotekanauki.pl/articles/1193375.pdf
Data publikacji:: 2021
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Antibiotics
Escherichia coli
Klebsiella
Pseudomonas
Sensitivity profiling
Staphylococcus
Urinary system
Urinary tract infections
Opis:: Urinary tract infections (UTI’s) are a bacterial infection that affects any part of the urinary tract. Urinary tract infection is one of the major diseases that affect people of all age groups and sexes and can be separated into asymptomatic and symptomatic. The normal urinary tract is sterile but gets infected with the normal flora and opportunistic pathogens. Urinary tract infections (UTIs) are a serious health problem affecting millions of people each year. This is the second most common type of infection in the body. In the present study 20 morphologically different bacterial isolates were recovered from 50 different urine samples from UTI’s patient. The prevalence of the isolates was varied with E. coli (40%), followed by Staphylococcus spp., Pseudomonas spp. and Klebsiella spp. each of (20%) respectively. All the isolates of different bacteria were tested for antibiotic sensitivity patterns against common antibiotics viz. Ampicillin, Tetracycline, Chloramphenicol, Vancomycin, Nitrofurontione and Ciprofloxacin with potencies of 30 μg each. The sensitive pattern of the isolates towards antibiotic Nitrofurontoine was (75%) followed by Tetracycline (55%) and Ciprofloxacin (45%). Intermediate activity was reported against Ampicillin (45%), Chloramphenicol and vancomycin (40%). Resistant pattern shown against vancomycin (60%), Chloramphenicol (45%), while both tetracycline and Ciprofloxacin shown (30%) against the UTI’s isolates. Therefore, drugs like Nitrofurontoine, Tetracycline and Ciprofloxacin are the most effective choices against the common UTI’s isolates.
Źródło:: World Scientific News; 2021, 155; 129-139
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Antibiotic resistance and siderophores production by clinical Escherichia coli strains
Autorzy:: Khazaal, Mohamed T.
El-Hendawy, Hoda H.
Mabrouk, Mona I.
Faraag, Ahmed H.I.
Bakkar, Marwa R.
Powiązania:: https://bibliotekanauki.pl/articles/16648088.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: siderophores
Escherichia coli
clinical strains
antibiotic susceptibility
Opis:: The phenomenon of antibiotic resistance has dramatically increased in the last few decades, especially in enterobacterial pathogens. Different strains of Escherichia coli have been reported to produce a variety of structurally different siderophores. In the present study, 32 E. coli strains were collected from different clinical settings in Cairo, Egypt and subjected to the antibiotic susceptibility test by using 19 antibiotics belonging to 7 classes of chemical groups. The results indicated that 31 strains could be considered as extensively drug-resistant and only one strain as pan drug-resistant. Siderophores production by all the tested E. coli strains was determined qualitatively and quantitatively. Two E. coli strains coded 21 and 49 were found to be the most potent siderophores producers, with 79.9 and 46.62%, respectively. Bacterial colonies with cured plasmids derived from strain 49 showed susceptibility to all the tested antibiotics. Furthermore, E. coli DH5α cells transformed with the plasmid isolated from E. coli strain 21 or E. coli strain 49 were found to be susceptible to ansamycins, quinolones, and sulfonamide groups of antibiotics. In contrast, both plasmid-cured and plasmid-transformed strains did not produce siderophores, indicating that the genes responsible for siderophores production were located on plasmids and regulated by genes located on the chromosome. On the basis of the obtained results, it could be concluded that there is a positive correlation between antibiotic resistance, especially to quinolones and sulfonamide groups, and siderophores production by E. coli strains used in this study.
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 2; 169-184
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Środowisko a antybiotykooporność izolatów Escherichia coli
Envirnomental dissemision of resistance among Escherichia coli isolates
Autorzy:: Krzyśko-Łupicka, T.
Kręcidło, M.
Mysłek, M.
Kręcidło, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/126404.pdf
Data publikacji:: 2017
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: metoda Kirby-Bauera
testowanie antybiotykoodporności
Escherichia coli
Kirby-Bauera method
antibiotic susceptibility testing
Opis:: Pula farmaceutyków w środowisku powiększa się w wyniku kontaminacji wód, gruntów, ścieków, a także surowców pochodzenia zwierzęcego. Obecność antybiotyków w środowisku wpływa nie tylko na zahamowanie rozwoju mikroorganizmów, ale w stężeniu subinhibicyjnym może stymulować ekspresję genów wywołujących zjawisko antybiotykooporności. Celem pracy było porównanie wrażliwości na antybiotyki pałeczek Escherichia coli wyizolowanych z surowego mleka i zmieszanych odpadów drobiarskich. Materiał badawczy stanowiły szczepy E.coli wyizolowane z surowca mleczarskiego i zmieszanych odpadów drobiarskich. Ocenę wrażliwości izolatów na antybiotyki przeprowadzono metodą Kirby-Bauera. Profil oporności E. coli ustalano na podstawie rekomendacji CLSI. Wykorzystano krążki firmy BTL wysycone takimi antybiotykami, jak: ampicylina (AM10), chloramfenikol (C30), gentamycyna (CN10), tetracyklina (TE30) oraz mieszaniną sulfmetoksazolu i trimetoprimu (SXT25). Izolaty E. coli z surowca mleczarskiego charakteryzowały się większą opornością na ampicylinę i wyższą wrażliwością na pozostałe badane antybiotyki w porównaniu do izolatów z odpadów drobiarskich.
Recently amount of pharmaceutical substances in the environment is getting higher due to spreading and relocation of water and soil contamination by sources such as a livestock production or sewage. The persistence of antibiotic in the environment may affect both the inhibition of microbial growth and also the stimulation of resistance gens expression, when antibiotics are in the subinhibitory concentration. The purpose of a study was to compare susceptibility of Escherichia coli isolates from two following sources: a raw milk from dairy and a poultry waste. The assessment of susceptibility on antibiotic was carried out by the Kirby-Bauer’s method. The resistance profile of isolates was estimated with using of CLSI standards. Antibiotic discs from BTL company were tested with particular type of substances: ampicillin (AM10), chloramphenicol (C30), gentamicin (CN10), tetracycline (TE30) and solution of sulfamethoxazole and trimethoprim (SXT25). Isolates of E. coli from raw milk were more resistant to ampicillin and characterised by higher susceptibility to the other antibiotics in the comparison to the isolates from poultry waste.
Źródło:: Proceedings of ECOpole; 2017, 11, 2; 517-523
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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