Yazar "Özgümüş, Osman Birol" için listeleme
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Antibiotic resistance profiles of enteric bacteria Isolated from Kucukcekmece Lagoon (Istanbul – Turkey)
Bu çalışmanın amacı, Küçükçekmece Lagünü’ndeki (İstanbul) fekal bakteri yoğunluğunu bulmak ve izole edilen Gram negatif basillerin antibiyotiklere direncini analiz etmektir. Örnekler, Haziran 2006'dan Haziran 2008 tarihleri ... -
Antibiotic resistance profiles of enteric cacteria isolated from Kucukcekmece Lagoon (Istanbul-Turkey)
Sivri, Nuket; Sandallı, Cemal; Özgümüş, Osman Birol; Çolakoğlu, Feyza; Doğan, Dilek (Central Fisheries Research Inst, 2012)The aim of this study is to find out the density of the fecal bacteria and to analyze resistance to antimicrobials of Gram negative bacilli isolated from the Kucukcekmece Lagoon, Istanbul. Samples were taken monthly from ... -
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 ... -
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 ... -
Characterization of class 1 and class 2 integron gene cassettes in escherichia coil strains isolated from urine cultures: A multicenter study
Çopur Çiçek, Ayşegül; Sandallı, Cemal; Budak, Emine Esra; Yağmur, Gülhan; Çizmeci, Zeynep; Ak, Sibel; Balcı, Pervin Özlem; Say Coşkun, Safiye Umut; Ay Altıntop, Yasemin; Fırat, Mehmet; Sarı, Fatma; Çalışkan, Ahmet; Yıldız, Nazan; Sancaktar, Metin; Özgümüş, Osman Birol (Ankara Microbiology Soc, 2016)Escherichia coli is the most common pathogen isolated from both nosocomial and community acquired urinary tract infections. Although there are many studies from different centers concerning the antibiotic susceptibility ... -
Characterization of tetracycline resistance genes in tetracycline-resistant Enterobacteriaceae obtained from a coliform collection
Sandallı, Cemal; Özgümüş, Osman Birol; Sevim, Ali (Springer, 2010)Tetracycline resistance has been used as the key determinant to monitor resistance genes in natural environments such as rivers, lakes or seawater. The aim of this study was evaluate the frequency of tetA, tetB, tetC, tetD ... -
Class 1 and class 2 integrons and plasmid-mediated antibiotic resistance in coliforms isolated from ten rivers in northern Turkey
We aimed to determine the molecular mechanisms of antibiotic resistance in coliforms isolated from ten rivers in northern region of Turkey. A total of 183 isolates were tested for antimicrobial susceptibility by disk ... -
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. ... -
Determination and molecular analysis of antibiotic resistance in Gram-negative enteric bacteria isolated from Pelophylax sp. in the Eastern Black Sea Region (vol 69, pg 223, 2021)
Rakıcı, Erva; Altunışık, Abdullah; Şahin, Kazım; Özgümüş, Osman Birol (Akademia Kiado Zrt., 2021)The sentence 'However, two of three quinolone-resistant Klebsiella strains showed the novel amino acid substitution in the gyrA gene resulting in Ser83Asp and Asp87Glu.' should be corrected to 'However, one of three ... -
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 ... -
Evaluation of 2015-2016 MOTAKK HBV DNA and HCV RNA external quality assessment national program results
Karataylı, Ersin; Soydemir, Ege; Aksoy, Zeynep Büşra; Kızılpınar, Mehtap; Altay Koçak, Aylin; Karataylı, Senem Ceren; Yurdcu, Esra; Yıldırım, Umut; Güriz, Haluk; Bozdayı, Gülendam; Yurdaydın, Cihan; İlhan, Osman; Yıldırım, Yasin; Bozdayı, A. Mithat; Oğuz, Açelya Yalçıntaş; Barış, Ahmet; Alp, Alpaslan; Aksözek, Alper; Sayıner, Arzu; Karagül, Aydan; Ordu, Aylin; İstanbullu, Aye; Otlu, Barış; Arıdoğan, Buket; Aksu, Burak; Buruk, C. Kurtuluş; Karahan, Ceren; Güney, Çakır; Toksöz, Devrim; Yıldırım, Dilara; Çolak, Dilek; Dağlar, Duygu Eren; Fındık, Duygu; Kaş, Elif; Çalışkan, Emel; Zeyrek, Fadile Yıldız; Arslan, Fatma; Demir, Feyza; Milletli, Fikriye; Kibar, Filiz; Özdinçer, Furkan; Dündar, Gülnur; Arslan, Hande; Ağça, Harun; Alışkan, Hikmet Eda; Güdücüoğlu, Hüseyin; Fidan, Işıl; Akyar, Işın; Afşar, İlhan; Kaleli, İlknur; Dönmez, İsmail; Yanık, Kemalettin; Midilli, Kenan; Çubukçu, Kıvanç; Özdemir, Mehmet; Acar, Melek; Yalınay, Meltem; Kuşkucu, Mert Ahmet; Bakıcı, Mustafa Zahir; Aydın, Neriman; Yılmaz, Neziha; Çeken, Nihan; Ziyade, Nihan; Yılmaz, Nisel; Özgümüş, Osman Birol; Gitmişoğlu, Özlem; Demirgan, Recep; Kesli, Recep; Güçkan, Rıdvan; Sertöz, Ruchan; Akgün, Sadık; Aksaray, Sebahat; Tezcan, Seda; Kaygusuz, Sedat; Gökahmetoğlu, Selma; Meşe, Sevim; Bayık, Seyit Ahmet; Akcalı, Sinem; Gürcan, Şaban; Karslıgil, Tekin; Us, Tercan; Özekinci, Tuncer; Pilgir, Tülin; Aslan, Uğur; Dinç, Uğur; Coşkun, Umut Safiye Say; Çetinkol, Yeliz; Keskin, Yusuf; Ayaydın, Zeynep; Toraman, Zülal Aşçı (Ankara Microbiology Soc, 2018)MOTAKK, as a national external quality control program has been launched to evaluate the molecular detection of viral infections including HBV DNA and HCV RNA in molecular microbiology diagnostic laboratories in Turkey. ... -
Horizontol dissemination of tem- and SHV-type Beta-Lactamase genes carrying resistance Plasmids amongst clinical isolates of enterobacteriaceae
Özgümüş, Osman Birol; Tosun, İlknur; Aydın, Faruk; Kılıç, Ali Osman (Brazilian Journal of Microbiology, 2008)Genişletilmiş spektrumlu beta-laktamaz (ESBL) üreten bakteriler, dünya çapında artan sıklıkta izole edilmiştir. ESBL'nin ifadesi genellikle çoklu ilaç direnci ve direnç plazmidleri tarafından yayılma ile ilişkilidir. 2000 ... -
Horizontol dissemination of TEM- and SHV-type beta-lactamase genes-carrying resistance plasmids amongst clinical isolates of Enterobacteriaceae
Özgümüş, Osman Birol; Tosun, İlknur; Aydın, Faruk; Kılıç, Ali Osman (SOC BRASILEIRA MICROBIOLOGIA, AV PROF LINEU PRESTES, 1374, 05508 SAO PAULO, BREZİLYA, 2008)The extended-spectrum ?-lactamase (ESBL)-producing bacteria have been isolated at increasing frequency worldwide. Expression of ESBL is often associated with multidrug resistance and dissemination by resistance plasmids. ... -
Investigation of antibiotic resistance profile and TEM-type β-lactamase gene carriage of ampicillin-resistant Escherichia coli strains isolated from drinking water
Karaoğlu, Şengül Alpay; Özgümüş, Osman Birol; Sevim, Elif; Kolaylı, Fetiye; Sevim, Ali; Yeşilgil, Pınar (Springer Verlag, 2007)Fifty-five ampicillin-resistant (Ampr) Escherichia coli strains were isolated from 51 drinking water points in Rize region containing abundant fresh water sources in Turkey during the years 2000 to 2002 and from January ... -
İdrar kültürlerinden i̇zole edilen escherichiacolisuşlarında sınıf 1 ve sınıf 2 i̇ntegron gen kasetlerinin karakterizasyonu: çok merkezli bir çalışma
Çopur, Ayşegül Çiçek; Sandallı, Cemal; Budak, Emine Esra; Yağmur, Gülhan; Çizmeci, Zeynep; Ak, Sibel; Balcı, Pervin Özlem; Şay Coşkun, Safiye Umut; Ay Altıntop, Yasemin; Fırat, Mehmet; Sarı, Fatma; Çalışkan, Ahmet; Yıldız, Nazan; Sancaktar, Metin; Özgümüş, Osman Birol (2016)Escherichia coli hem hastane hem de toplum kaynaklı üriner sistem enfeksiyonlarında en sık izole edilen etkendir. Ülkemizde E.coli suşlarının antibiyotik duyarlılıkları ile ilgili farklı merkezlerde yapılmış çok sayıda ... -
Klinik örneklerden izole edilen acinetobacter baumannii ve pseudomonas aeruginosa suşlarının sınıf 1 ve 2 integron taşıyıcılığı ve yeni bir gen kaseti birlikteliği: blaOXA-11-cmlA7
Mengeloğlu, Fırat Zafer; Çiçek, Ayşegül Çopur; Koçoğlu, Mücahide Esra; Sandallı, Cemal; Budak, Emine Esra; Özgümüş, Osman Birol (2014)Antibiyotik direnç genlerinin bakteriler arasındaki yayılımı, enfeksiyon hastalıklarının tedavisinde ciddi sorunlar oluşturmaktadır. Son zamanlarda bu genlerin integronlarda da taşındığı gösterilmiştir. Ülkemizde, Acinetobacter ... -
Klinik örneklerden izole edilen karbapenem dirençli pseudomonas aeruginosa izolatlarındaki antibiyotik direncinin moleküler analizi
Pseudomonas aeruginosa riskli hasta gruplarında morbidite ve mortalitede artışa neden olan fırsatçı patojendir. Karbapenem direncinin tehdit haline geldiği günümüzde, direnç genleri mobil genetik elemanlar aracılığıyla ... -
Molecular characterization of antibiotic resistant Escherichia coli strains isolated from tap and spring waters in a coastal region in Turkey
A hundred and seventeen antibiotic-resistant Escherichia coli strains were isolated from public tap and spring waters which were polluted by fecal coliforms. There were no significant differences between two water sources ... -
Molecular epidemiological analysis of integron gene cassettes and tetA/tetB/tetD gene associations in Escherichia coli strains producing extended-spectrum beta-lactamase (ESBL) in urine cultures
Çiçek, Ayşegül Çopur; Şemen, Vicdan; Ejder, Nebahat Aydoğan; Gündoğdu, Deniz Zehra Ulusan; Kalcan, Sema Koçyiğit; Köse, Fatma Tufan; Özgümüş, Osman Birol (Wroclaw Medical University, 2021)Background. Epidemiological studies of tetracycline (TE) resistance genes and integron gene cassettes, particularly in urine samples, are limited in Turkey. Objectives. To investigate antibiotic susceptibility profiles, ...
