Yazar "Çiçek, Ayşegül Çopur" için PubMed İndeksli Yayınlar Koleksiyonu listeleme
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Absence of the mecC gene in methicillin-resistant Staphylococcus aureus isolated from various clinical samples: the first multi-centered study in Turkey
Çıkman, Aytekin; Aydın, Merve; Gülhan, Barış; Karakeçili, Faruk; Kurtoǧlu, Muhammet Güzel; Yüksekkaya, Şerife; Parlak, Mehmet; Gültepe, Bilge Sümbül; Çiçek, Ayşegül Çopur; Bilman, Fulya Bayındır; Çiftçİ, İhsan Hakkı; Kara, Murat; Atmaca, Selahattin; Özekinci, Tuncer (Elsevier Science London, 2019)Background: mecA is a predefined gene causing methicillin resistance in Staphylococcus aureus (S. aureus) isolates; however, it has been shown that some methicillin-resistant S. aureus (MRSA) strains do not carry this gene. ... -
Antimicrobial resistance patterns and integron carriage of escherichia coli isolates causing community-acquired infections in Turkey
Çiçek, Ayşegül Çopur; Özgümüş, Osman Birol; Saral, Ayşegül; Sandallı, Cemal (Korean Soc Laboratory Medicine, 2014)We aimed to observe antimiCrobial resistance patterns and integron carriage of Escherichia coli isolates causing community-acquired infections. Two hundred sixty-eight E. coli strains were obtained from outpatients with ... -
Antimicrobial susceptibility and molecular characterization of multidrug-resistant acinetobacter baumannii isolated in an university hospital
Direkel, Şahin; Çiçek, Ayşegül Çopur; Karagöz, Alper; Aydoğan Ejder, Nebahat; Oktay, Efdal; Delialioğlu, Nuran; Özgümüş, Osman Birol; Durmaz, Rıza (Ankara Microbiology Soc, 2016)Acinetobacter baumannii, an aerobic, non-motile, gram-negative bacterium is an important nosocomial pathogen which shows resistance to the most antibiotics. Carbapenems are the most commonly used antibiotics for the treatment ... -
Beta-lactamase genes in carbapenem resistance Acinetobacter baumannii isolates from a Turkish university hospital
Coşkun, Umut Safiye Say; Çalışkan, Emel; Çiçek, Ayşegül Çopur; Turumtay, Halbay; Sandallı, Cemal (J Infection Developing Countries, 2019)Introduction: the spread of Acinetobacter baumannii, resistant to most of the available antimicrobial agents, is a serious health problem. the high rate of carbapenem resistance among Acinetobacter baumannii isolates is ... -
Carriage of class 1 and 2 integrons in acinetobacter baumannii and pseudomonas aeruginosa isolated from clinical specimens and a novel gene cassette array: bla(OXA-11)-cmlA7
Mengeloğlu, Fırat Zafer; Çiçek, Ayşegül Çopur; Koçoğlu, Esra; Sandallı, Cemal; Budak, Emine Esra; Özgümüş, Osman Birol (Ankara Microbiology Soc, 2014)The dissemination of antibiotic resistance genes between bacteria leads to serious problems in the treatment of infectious diseases. It has been shown that resistance genes can also be carried by the integrons. There are ... -
The challenges of contact tracing in a case of early neonatal sepsis with COVID-19
Kanburoğlu, Mehmet Kenan; Altuntaş, Özgür; Çiçek, Ayşegül Çopur (Springer India, 2020)To the Editor: Contact tracing is one of the main components of slowing the chain of transmission during pandemics. This method entails screening the chain of contact in the infectious phase, reaching the people infected, ... -
Characterization of novel VIM carbapenemase, VIM-38, and first detection of GES-5 carbapenem-hydrolyzing beta-lactamases in Pseudomonas aeruginosa in Turkey
Iraz, Meryem; Düzgün, Azer Özad; Çiçek, Ayşegül Çopur; Bonnin, Remy A.; Ceylan, Ayşenur; Saral, Ayşegül; Nordmann, Patrice; Sandalli, Cemal (Elsevier Science Inc, 2014)Pseudomonas aeruginosa isolates were collected form a Turkish hospital. Antimicrobial susceptibility was performed using the Vitek 2 Compact system, and 24 isolates were categorized as multidrug resistant (n = 18), ... -
Characterization of resistance genes and replicon typing in Carbapenem-resistant Klebsiella pneumoniae strains
Karaman, Esin; Çiçek, Ayşegül Çopur; Semen, Vicdan; Beriş, Fatih Şaban (SpringerNature, 2024)Objective In our study, K. pneumoniae strains (non-susceptible to carbapenem) (n = 60) were obtained from various clinical samples from Rize State Hospital between 2015 and 2017 and it is aimed to identify antibiotic ... -
Clinical potential of resistin as a novel prognostic biomarker for cellulitis
Ertürk, Ayşe; Cüre, Medine Cumhur; Cüre, Erkan; Kurt, Aysel; Çiçek, Ayşegül Çopur; Yüce, Süleyman (Spandidos Publ Ltd, 2015)Cellulitis is an acute, subacute or chronic inflammation of the dermis and subdermal tissues, which is typically caused by bacteria, although other causes are possible. the present study aimed to evaluate the association ... -
Comparison of a novel antigen detection test with reverse transcription polymerase chain reaction assay for laboratory diagnosis of SARS-CoV-2 infection
Cirit, Osman Sezen; Mutlu, Esvet; Sancak, Banu; Kocagöz, Tanıl; Can, Özge; Çiçek, Candan; Sayıner, Ayça Arzu; Appak, Özgür; Uyar, Neval Yurttutan; Külah, Canan; Çiçek, Ayşegül Çopur; Özgümüş, Osman Birol; Altıntop, Yasemin Ay; Saatçi, Esma; Karslıgil, Tekin; Zer, Yasemin; Özen, Nevgün Sepin; Çekin, Yeşim; Karahan, Zeynep Ceren; Evren, Ebru; Karakoç, Ayşe Esra; Orhan, Sultan Gülbahçe; Mutlu, Derya; Bozdemir, Tuğba; Çaycı, Yeliz Tanrıverdi; Çınar, Canberk; Taşbakan, Meltem; Mert, Merve; Çınar, Ece; Kutlusoy, Oya Özlem Eren; Kocagöz, Sesin; Ertürk, Ayşe; Çelik, İlhami; Mete, Ayşe Özlem; Eneyli, Müge Günalp; Akdemir, İrem; Karakök, Taliha; İnan, Dilara; Atilla, Aynur; Taflan, Şevket Onur; Yörük, Kağan Etka (Springer, 2022)Molecular diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by real-time reverse transcription polymerase chain reaction (RT-PCR) in respiratory specimens is considered the gold standard method. ... -
Comparison of standard triple therapy, sequential therapy and moxifloxacin-based triple therapy for Helicobacter pylori infection: Patients' compliance and bacterial eradication rates
Rakıcı, Halil; Akdoğan, Remzi Adnan; Bedir, Recep; Çiçek, Ayşegül Çopur; Yılmaz, Arif (Wiley, 2014)ObjectiveTo compare the patients' compliance with and the efficacy of existing treatments for Helicobacter pylori eradication, including moxifloxacin-based triple therapy, sequential treatment and the standard treatment. ... -
Comparison of verona integron-borne metallo-beta-lactamase (VIM) variants reveals differences in stability and inhibition profiles
Makena, Anne; Düzgün, Azer Özad; Brem, Jurgen; McDonough, Michael A.; Rydzik, Anna M.; Abboud, Martine I.; Saral, Ayşegül; Çiçek, Ayşegül Çopur; Sandallı, Cemal; Schofield, Christopher J. (Amer Soc Microbiology, 2016)Metallo-beta-lactamases (MBLs) are of increasing clinical significance; the development of clinically useful MBL inhibitors is challenged by the rapid evolution of variant MBLs. the Verona integron-borne metallo-beta-lactamase ... -
COVID-19 vaccine immunity in oncology patients
Uslu, Gonca Hanedan; Rakıcı, Sema Yılmaz; Çiçek, Ayşegül Çopur; Yazıcı, Zihni Açar (AEPRESS Sro, 2023)BACKGROUND: To investigate the effect of vaccine types applied in our country against 2019 coronavirus disease on the formation of protective antibodies in oncology patients. MATERIALS AND METHODS: The data of 81 cancer ... -
Detection of class 1 integron in Acinetobacter baumannii isolates collected from nine hospitals in Turkey
Çiçek, Ayşegül Çopur; Düzgün, Azer Özad; Saral, Ayşegül; Kayman, Tuba; ÇIzmecI, Zeynep; Balci, Pervin Özlem; Dal, Tuba; Fırat, Mehmet; Tosun, İsmail; Altıntop, Yasemin Ay; Çalışkan, Ahmet; Yazıcı, Yelda; Sandallı, Cemal (Elsevier, 2013)Objective: To investigate the antibiotic resistance genes inserted into class 1 and class 2 integrons in Acinetobacter baumannii (A. baumannii) isolates obtained from nine different cities in Turkey. Methods: A collection ... -
Determination of a novel integron-located variant (bla(OXA-320)) of class D beta-lactamase in Proteus mirabilis
Çiçek, Ayşegül Çopur; Düzgün, Azer Özad; Saral, Ayşegül; Sandallı, Cemal (Wiley, 2014)Proteus mirabilis (P. mirabilis) is one of Gram-negative pathogens encountered in clinical specimens. A clinical isolate (TRP41) of P. mirabilis was isolated from a Turkish patient in Turkey. the isolate was identified ... -
Determination of antibiotic resistance genes and virulence factors in Escherichia coli isolated from Turkish patients with urinary tract infection
Düzgün, Azer Özad; Okumuş, Funda; Saral, Ayşegül; Çiçek, Ayşegül Çopur; Cinemre, Sedanur (Soc Brasileira Medicina Tropical, 2019)Introduction: Escherichia coli ranks among the most common sources of urinary tract infections (UTI). Methods: Between November 2015 and August 2016, 90 isolates of E coli were isolated from patients at Rize Education and ... -
Distribution of beta-lactamase genes among carbapenem-resistant klebsiella pneumoniae strains isolated from patients in Turkey
Iraz, Meryem; Düzgün, Azer Özad; Sandallı, Cemal; Doymaz, Mehmet Ziya; Akkoyunlu, Yasemin; Saral, Ayşegül; Peleg, Anton Y.; Özgümüş, Osman Birol; Beriş, Fatih Şaban; Karaoğlu, Hakan; Çiçek, Ayşegül Çopur (Korean Soc Laboratory Medicine, 2015)Background: the emergence of carbapenem-resistant Klebsiella pneumoniae poses a serious problem to antibiotic management. We investigated the beta-lactamases in a group of carbapenem-resistant K. pneumoniae clinical isolates ... -
Does prolidase indicate worsening of Hepatitis B infection?
Duygu, Fazilet; Aksoy, Nurten; Çiçek, Ayşegül Çopur; Bütün, İlknur; Ünlü, Şebnem (John Wiley & Sons Inc, 2013)Background Hepatitis B infection is a health problem that affects more than 400 million people all over the world. We aimed to evaluate the usability of prolidase enzyme that plays an important role in collagen synthesis. ... -
Effect of mazEF, higBA and relBE toxin-antitoxin systems on antibiotic resistance in Pseudomonas aeruginosa and Staphylococcus isolates
Coşkun, Umut Safiye Say; Çiçek, Ayşegül Çopur; Kılınç, Çetin; Güçkan, Rıdvan; Dağcıoğlu, Yelda; Demir, Osman; Sandallı, Cemal (Med Coll Malawi, 2018)Background A toxin-antitoxin (TA) system is a set of two or more closely linked genes that are encoded as a poison and a corresponding antidote on a protein. in typical bacterial physiology, an antitoxin binds to a toxin ... -
Evaluating molecular epidemiology of carbapenem non-susceptible Klebsiella pneumoniae isolates with MLST, MALDI-TOF MS, PFGE
İbik, Yunus Emre; Ejder, Nebahat; Sevim, Elif; Rakıcı, Erva; Tanrıverdi, Elif Seren; Çiçek, Ayşegül Çopur (SpringerNature, 2023)Background This study aimed to evaluate antibiotic resistance genes and virulence genes and the clonal relationship of the carbapenem-nonsusceptible Klebsiella pneumoniae strains by molecular methods which are isolated ...