Yazar "Coban, Ahmet Yilmaz" için listeleme
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Antimicrobial activity of plant extract Ankaferd Blood Stopper (R)
Fisgin, Nuriye Tasdelen; Cayci, Yeliz Tanriverdi; Coban, Ahmet Yilmaz; Ozatli, Duzgun; Tanyel, Esra; Durupinar, Belma; Tulek, Neda (Elsevier Science Bv, 2009)The in vitro antimicrobial activity of Ankaferd Blood Stopper (R) (ABS) was assessed on 102 clinical isolates from both Gram negative and Gram positive bacteria and four standard strains, including MRSA ATCC 43300, MSSA ... -
Antimicrobial and Antioxidant Activity of the Essential Oil of the Turkish Endemic Species Achillea phrygia Boiss. & Bal.
Akcin, Adnan; Akcin, Tulay Aytas; Seyis, Fatih; Coban, Ahmet Yilmaz; Durupinar, Belma (Taylor & Francis Ltd, 2014)The essential oil obtained from the dried flowering aerial parts of Achillea phrygia Boiss & Bal. by hydrodistilation was analysed by gas chromotography-mass spectrometry. Camphor (35.55 %), 2-furaldehyde (16.59 %) and ... -
Antimicrobial effect of nitric oxide
Coban, Ahmet Yilmaz (Soc Iberoamericana Informacion Cientifica-S I I C, 2008)Nitric oxide (NO) is a biologic effector molecule with a broad range of activities. In macrophages, it functions as a potent microbicidal agent that kills ingested organisms. In this article, antimicrobial effect of NO and ... -
Antimicrobial susceptibility and resistance mechanisms of methicillin resistant Staphylococcus aureus isolated from 12 Hospitals in Turkey
Yildiz, Omer; Coban, Ahmet Yilmaz; Sener, Asli Gamze; Coskuner, Seher Ayten; Bayramoglu, Gulcin; Guducuoglu, Huseyin; Bozdogan, Bulent (Biomed Central Ltd, 2014)Introduction: Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most important nosocomial pathogens and is also emerging in Turkish hospitals. The aim of this study was to determine the antimicrobial ... -
Blood Agar Validation for Susceptibility Testing of Isoniazid, Rifampicin, Ethambutol, and Streptomycin to Mycobacterium tuberculosis Isolates
Coban, Ahmet Yilmaz (Public Library Science, 2013)In recent studies, it was shown that blood agar can be used at least as effectively as Lowenstein-Jensen medium for growing Mycobacterium tuberculosis. It was also shown that susceptibility testing can be performed on blood ... -
Chemical Composition and Antimicrobial Activity of the Essential Oil of Endemic Heracleum platytaenium Boiss. from Turkey
Akcin, Adnan; Seyis, Fatih; Akcin, Tulay Aytas; Cayci, Yeliz Tanriverdi; Coban, Ahmet Yilmaz (Taylor & Francis Ltd, 2013)The compositions of the essential oil of Heracleum platytaenium Boiss. aerial parts, grown in Turkey were determined by GC-MS. Twenty-two compounds (95.24 %) were determined. The major compounds in the oil were found to ... -
Comparative evaluation of the microplate nitrate reductase assay and the rezasurin microtitre assay for the rapid detection of multidrug resistant Mycobacterium tuberculosis clinical isolates
Coban, Ahmet Yilmaz; Uzun, Meltem; Akgunes, Alper; Durupinar, Belma (Fundaco Oswaldo Cruz, 2012)The microplate nitrate reductase assay (MNRA) and the rezasurin microtitre assay (REMA) were used for the susceptibility testing of 73 clinical isolates and the results were compared with those that were obtained using the ... -
Comparative Study for Determination of Mycobacterium tuberculosis Susceptibility to First- and Second-Line Antituberculosis Drugs by the Etest Using 7H11, Blood, and Chocolate Agar
Coban, Ahmet Yilmaz; Bilgin, Kemal; Uzun, Meltem; Akgunes, Alper; Yusof, Anne; Durupinar, Belma (Amer Soc Microbiology, 2008)We investigated the performance of blood and chocolate agar as alternatives to Middlebrook 7H11 agar for testing the susceptibility of Mycobacterium tuberculosis to first-and second-line drugs by the Etest method. A total ... -
Correlation Between Serum Galectin-3 Levels and Disease Severity in Psoriasis Vulgaris
Ozden, Muge Guler; Denizli, Hilal; Cayci, Yeliz Tanriverdi; Coban, Ahmet Yilmaz; Aydin, Fatma; Senturk, Nilgun; Turanli, Ahmet Yasar (Deri Zuhrevi Hastaliklar Dernegi, 2011)Background and Design: In view of the evolving knowledge about the presence of the potent proinflammatory galectin-3, a member of the galectin family, in the cells (mainly T-lymphocytes) playing a key role in the inflammation ... -
Detection of the First QnrS Gene Positivity in Aquatic Aeromonas spp. Isolates in Turkey
Onuk, Ertan Emek; Cayci, Yeliz Tanriverdi; Coban, Ahmet Yilmaz; Ciftci, Alper; Balta, Fikri; Didinen, Behire Isil; Deveci, Aydin (Ankara Microbiology Soc, 2015)Aeromonas spp. are oxidase positive, gram-negative, facultative anaerobic bacilli that are widely distributed in aquatic environments. A.hydrophila, A.sobria and A.bestiarum may cause severe infections in both human and ... -
Determination of antimicrobial susceptibility patterns of fish and rearing water originated Aeromonas isolates
Onuk, Ertan Emek; Tanriverdi Cayci, Yeliz; Coban, Ahmet Yilmaz; Ciftci, Alper; Balta, Fikri; Didinen, Behire Isul; Altun, Soner (Ankara Univ Press, 2017)Aeromonas spp. are Gram negative bacilli that are widely distributed globally in aquatic environments and cause infections in both human and cold-blooded animals. In this study, we aimed to investigate antimicrobial ... -
Does exogenous nitric oxide influence tympanosclerosis? An experimental study
Atmaca, Sinan; Erol, Yesim; Coban, Ahmet Yilmaz; Yildiz, Levent; Cengel, Senem; Koyuncu, Mehmet (Elsevier Ireland Ltd, 2008)Objective: We aimed to elucidate the effects of exogenous nitric oxide application via myrigotomized rat tympanic membranes on tympanosclerosis. Materials and methods: Forty mate rats were included in the study. After ... -
Effect of 1-(1-Naphtylmethyl)-piperazine, an Efflux Pump Inhibitor, on Antimicrobial Drug Susceptibilities of Clinical Acinetobacter baumannii Isolates
Coban, Ahmet Yilmaz; Guney, Akif Koray; Cayci, Yeliz Tanriverdi; Durupinar, Belma (Springer, 2011)In this study, the effects of 1-(1-naphtylmethyl)-piperazine (NMP), an efflux pump inhibitor, on antimicrobial drug susceptibilities of 42 clinical Acinetobacter baumannii isolates were investigated by the disc diffusion ... -
Effect of Efflux Pump Inhibitor 1-(1-Naphthylmethyl)-Piperazine To Mic Values of Ciprofloxacin in Ciprofloxacin Resistant Gram-Negative Bacteria
Coban, Ahmet Yilmaz; Bayram, Zeynep; Sezgin, Fikriye Milletli; Durupinar, Belma (Ankara Microbiology Soc, 2009)Effective efflux pump systems play a crucial role in the development of multiple antimicrobial resistance in bacteria. In this study, the effects of an efflux pump inhibitor 1-(1-naphthylmethyl)-piperazine on ciprofloxacin ... -
Effect of Linezolid in Combination With Isoniazid and Rifampicin Against Multidrug Resistant Mycobacterium Tuberculosis Clinical Isolates
Coban, Ahmet Yilmaz; Bilgin, Kemal; Uzun, Meltem; Durupinar, Belma (Ankara Microbiology Soc, 2009)Tuberculosis continues to be a serious public health problem worldwide. Since multi-drug resistant strains of Mycobacterium tuberculosis constitutes a serious problem in tuberculosis control, new and more effective ... -
Efficacy of different instrumentation techniques on reducing Enterococcus faecalis infection in experimentally infected root canals
Demiryurek, Ebru Ozsezer; Kalyoncuoglu, Elif; Duran, Esra; Coban, Ahmet Yilmaz; Cayci, Yeliz Tanriverdi (Elsevier Taiwan, 2014)Background/purpose: Enterococcus faecalis is the bacterium most commonly isolated from infected root canals. This study evaluated the effects of four instrumentation techniques on reducing E. faecalis in curved root canals. ... -
Evaluation of Agar-Based Medium with Sheep Sera for Testing of Drug Susceptibility of Mycobacterium tuberculosis to Isoniazid, Rifampin, Ethambutol, and Streptomycin
Coban, Ahmet Yilmaz; Uzun, Meltem; Bozdogan, Bulent (Amer Soc Microbiology, 2013)The performance of sheep sera instead of sheep blood in agar-based media was investigated for susceptibility testing of Mycobacterium tuberculosis against primary drugs. The levels of agreement between agar-based medium ... -
Evaluation of Blood Agar Medium for the Growth of Mycobacteria
Coban, Ahmet Yilmaz; Akgunes, Alper; Durupinar, Belma (Ankara Microbiology Soc, 2011)This study was aimed to evaluate the performance of blood agar for the growth of mycobacteria from clinical specimens sent to Mycobacteriology Laboratory of Samsun Chest Diseases Hospital. One hundred fifty six clinical ... -
Evaluation of crystal violet decolorization assay for minimal inhibitory concentration detection of primary antituberculosis drugs against Mycobacterium tuberculosis isolates
Coban, Ahmet Yilmaz; Akbal, Ahmet Ugur; Uzun, Meltem; Cayci, Yeliz Tanriverdi; Birinci, Asuman; Durupinar, Belma (Fundaco Oswaldo Cruz, 2016)In this study we evaluated the crystal violet decolorization assay (CVDA) for detection of minimum inhibitory concentration (MIC) of antituberculosis drugs. 53 isolates were tested in this study and 13 of them were multidrug ...