186 results on '"Çetin, Emel"'
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152. Terra firma-forme dermatosis.
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Erkek, Emel, ŝahin, Sedef, Çetin, Emel Dikicioğlu, and Sezer, Engin
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SKIN care ,KERATINIZATION ,DERMATOLOGY - Abstract
Terra firma-forme dermatosis is characterized by 'dirty' brown-grey cutaneous patches and plaques that can simply be eradicated by forceful swabbing with alcohol pads. The pathogenesis has been attributed to abnormal and delayed keratinization. Although affected patients present with typical lesions, the disorder is not well-known by dermatologists. In this report, we describe two patients with terra firma-forme dermatosis in the setting of xerosis cutis and atopic dermatitis. From a clinical point of view, we lay emphasis on its unique expression and diagnosis/treatment. From a histological perspective, we highlight its resemblance to dermatosis neglecta and speculate on the role of 'neglect' in a patient with seemingly adequate hygiene. The role of urea containing emollients in the development of this disorder remains to be determined. [ABSTRACT FROM AUTHOR]
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- 2012
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153. Erişkin Tip Ksantogranuloma: Bir Olgu Sunumu.
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Sezer, Engin, Erkek, Emel, Şahin, Sedef, and Çetin, Emel Dikicioğlu
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Copyright of Turkish Journal of Dermatology / Turk Dermatoloji Dergisis is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2011
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154. A Case of Thyroid Angiosarcoma and Multiple Pleuropulmonary Metastasis Diagnosed at Autopsy.
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Meteoğlu, İbrahim, Ünal, Emel, Şen, Serdar, Çetin, Emel Dikicioğlu, and Dirlik, Musa
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ANGIOSARCOMA ,METASTASIS ,AUTOPSY ,HYPERTENSION ,IMMUNOHISTOCHEMISTRY - Abstract
Copyright of Turkish Thoracic Journal / Turk Toraks Dergisi is the property of Aves Yayincilik Ltd. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2010
155. Oral Ülserlerle Seyreden Bir Mukormikozis Olgusu.
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Başak, Pınar Yüksel, Çetin, Emel Sesli, Yetkin, Hicran, and Akkaya, Vahide Baysal
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MUCORMYCOSIS , *MOUTH ulcers , *ACUTE myeloid leukemia , *MYCOSES , *IMMUNOSUPPRESSION , *MEDICAL research - Abstract
A 62-year-old male patient suffering from oral ulcers and painful throat with pancytopenia was diagnosed as acute myeloid leukemia. Because of uncontrolled fever despite antibiotherapy and that Rhizopus spp. was identified from oral lesions, amphotericin B was added to treatment for two weeks. Oral lesions were completely cleared thereafter and this case was presented to point out that mucormycosis must be kept in mind in the differential diagnosis of oral mucosal lesions in patients with immunosuppression as well as it is a rare disease with high mortality. [ABSTRACT FROM AUTHOR]
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- 2009
156. Diabetes Mellitus ve Psoriasisli Bir Olguda Microsporum audouinii'ye Bağlı Gelişen Tinea Korporis.
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Başak, Pınar Yüksel, Çetin, Emel Sesli, Yılmaz, Sadık, and Akkaya, Vahide Baysal
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Copyright of Turkish Journal of Dermatology / Turk Dermatoloji Dergisis is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2009
157. Contaminated Ambu-Bag Associated Hospital-Acquired Infection with Pseudomonas aeruginosa in an Intensive Care Unit.
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Çetin, Emel Sesli, Demirci, Serpil, Aynali, Ayşe, Aşçi, Sanem, and Aridoğan, Buket Cicioğlu
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- 2009
158. Hastane infeksiyonu etkeni olarak belirlenmiş, çoklu antibiyotik direnci gösteren Acinetobacter Baumannii klinik izolatlarının imipenem ve meropenemin, sefoperazon sulbaktam, ampisilin-sulbaktam, polimiksin b ve rifampin ile kombinasyonlarına duyarlılığının invitro araştırılması = In vitro susceptibility testing of imipenem and meropenem in combination with cefoperazone-sulbactam, ampicillin-sulbactam, polymyxin b and rifampin against clinical isolates of multidrug resistant acinetobacter baumannii, associated with nosocomial infections
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Özseven, Ayşegül. 23903 author, Sesli Çetin, Emel, 1972- thesis advisor 11589, and Süleyman Demirel Üniversitesi. Tıp Fakültesi. Tıbbi Mikrobiyoloji Anabilim Dalı. issuing body 12188
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Süleyman Demirel Üniversitesi - Abstract
Son yıllarda, özellikle yoğun bakım ünitelerinde antimikrobiyal ajanların çoklu ilaçdirençli (MDR) Acinetobacter baumannii infeksiyonlarının tedavisindeki yetersizliği, klinisyenleri zorlamakta ve kombinasyon tedavilerine yönlendirmektedir. Bu çalışmada, Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi Yoğun Bakım Servislerinden izole edilmiş olan, 34 MDR A.baumannii izolatının,imipenem (İPM) ve meropenemin (MEM), sefoperazon/sulbaktam (SCP), ampisilin/sulbaktam(SAM), polimiksin B (PB) ve rifampin (RİF) ile olan kombinasyonlarına duyarlılığı in vitro olarak dama tahtası yöntemi ile araştırıldı. MDR A.baumannii en fazla trakeal aspirat (%50) kültürlerinden soyutlandı. Disk difüzyonla, izolatların tamamı imipenem, meropenem, tikarsilin, sefepim, amikasin ve siprofloksasine dirençli bulundu. En düşük direnç oranı minosiklin (%44,2) için saptandı. İzolatların tamamında (%100) imipenem, meropenem, ampisilin/sulbaktam ve sefoperazon/sulbaktam için dirençli ve polimiksin B için duyarlı sınırlarda MİK değerleri bulundu. Sinerji oranları MEM/SAM kombinasyonunda en yüksek (%94,1) bulunurken daha sonra sırasıyla, İPM/SAM (%88,2), İPM/RİF (%73,5), İPM/SCP (%70,6), İPM/PB (%38,2), MEM/RİF (%17,6), MEM/SCP (%8,8) ve MEM/PB (%2,9) olarak saptandı. Kombinasyonların hiçbirinde antagonizma gözlenmedi. Bu yüzden, bu sinerjistik kombinasyonlarla ilgili bulgularımızın yoğun ilgiyi hak ettiğini ve çoğul ilaç dirençli bu organizmalar tarafından oluşturulan enfeksiyonlarda, yenilikçi ve etkili tedavi seçeneklerine temel olabileceğini söyleyebiliriz. Sonuç olarak MDR A.baumannii kökenlerine karşı kullanılan antibiyotik kombinasyonlarının etkinliği ile ilgili birçok in vitro çalışmada olumlu sonuçlar bildirilmiş olsa da bu verilerin klinik bulgularla da desteklendiği geniş kapsamlı ileri çalışmalara ihtiyaç vardır. Anahtar Kelimeler: Çoklu İlaç Direnci, Acinetobacter Baumannii, Antibiyotik Kombinasyonları, Karbapenemler, Sulbaktam, Rifampin, Polimiksin B, Dama Tahtası Yöntemi., In recent years, the inadequacy of antimicrobial agents available to treat infections particularly in ICU.s due to MDR Acinetobacter baumannii, has constrained clinicians and forced them to use combination therapies. In this study, the antibacterial effect of imipenem and meropenem in combination with cefoperazone/sulbactam, ampicillin/sulbactam, polymyxin B and rifampin has been evaluated in vitro by the checkerboard microdilution method against 34 clinical isolates of multidrug resistant (MDR) A.baumannii, all collected from the Intensive Care Units of Süleyman Demirel University Hospital. Most of the MDR A.baumannii strains (50%) were isolated from the tracheal aspirate cultures. All of the isolates were found to be resistant to imipenem, meropenem, ticarcillin, cefepime, amikacin and ciprofloxacin by disc diffusion method. The lowest resistance rate was established for minocycline (44.2%). In all of the isolates (100%) the MIC values were within the resistance range for imipenem, meropenem, ampicillin/sulbactam and cefoperazone/sulbactam and susceptibility range for polymyxin B. The combination of meropenem with sulbactam showed synergy against 94.1% of MDR A.baumannii while the synergy rates for combinations of imipenem and sulbactam, imipenem and rifampin, imipenem and cefoperazon/sulbactam,imipenem and polymyxin B, meropenem and rifampin, meropenem and cefoperazon/sulbactam and meropenem and polymyxin B were 88.2%, 73.5%, 70.6%, 38.2%, 17.6%, 8.8% and 2.9%, respectively. Antagonism was not observed in any of the combinations. Hence, our findings about these synergistic combinations are of considerable interest and may provide a rationale for innovative and effective therapeutic options for infections caused by these MDR organisms. In conclusion, although favourable outcomes have been reported in several in vitro studies about the efficacy of antibiotic combinations used against MDR A.baumannii strains, further comprehensive studies with clinical evidence are warranted to confirm these data. Keywords: Multi-Drug Resistance, Acinetobacter Baumannii, Antimicrobial Combination, Carbapenems, Sulbactam, Rifampin, Polymyxin B, Checkerboard Assay., Tez (Uzmanlık)- Süleyman Demirel Üniversitesi, Tıp Fakültesi,Tıbbi Mikrobiyoloji Anabilim Dalı, 2011., Kaynakça var.
159. Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi mikrobiyoloji laboratuvarında çeşitli klinik örneklerden izole edilen klebsiella pneumoniae suşlarındaki karbapenemaz varlığının araştırılması = Investigation of carbapenemase presence in klebsiella pneumoniae isolates obtained from various clinical samples in microbiology laboratory of Süleyman Demirel University of Faculty of Medicine Hospital
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Çiftçi, Esra. author 116789, Sesli Çetin, Emel, 1972- thesis advisor 11589, and Süleyman Demirel Üniversitesi. Sağlık Bilimleri Enstitüsü. Tıbbi Mikrobiyoloji Anabilim Dalı. 60843 issuing body
- Subjects
Süleyman Demirel Üniversitesi - Abstract
Karbapenemaz üreten K. pneumoniae genellikle diğer direnç mekanizmalarını da taşıdığı için çoklu dirençlidir ve karbapenemaz üreten K. pneumoniae enfeksiyonları yüksek mortalite hızları ile ilişkilidir. Karbapenemazların, özellikle de karbapenemlerden birine duyarlıkta azalmaya neden olmuşsa, epidemiyolojik açıdan yüksek önem taşıdığı kabul edilir.Çalışmamızda hastanemizde 2012 yılından itibaren gözlemlenmeye başlanan karbapenem dirençli K. pneumoniae suşlarında karbapenemaz varlığının çeşitli fenotipik ve genotipik yöntemlerle araştırılması ve izolatlar arasındaki olası klonal ilişkilerin PFGE ile analizi amaçlanmıştır.Çalışmamızın sonucunda K. pneumoniae’da karbapenemaz varlığının taranmasında en yüksek duyarlılık ertapenem ile bulunmuş (%96,8) olup karbapenemaz varlığının doğrulanması için uygulanan fenotipik yöntemlerden en duyarlı olanın ise MHT olduğu ortaya konulmuştur.Hastanemizde enfeksiyon etkeni olarak izole edilen karbapenem dirençli K. pneumoniae suşlarının hiçbirinde dirence sebep olan gen olarak blaKPC tespit edilmemiştir. Hastanemizde K. pneumoniae’larda gözlenmekte olan karbapenem direncinin diğer karbapenem direnç mekanizmalarına (NDM, OXA-48), en sık da OXA-48 genine bağlı olduğu tespit edilmiş olup hastanemizdeki K. pneumoniae suşlarının önemli kısmının birbirleriyle klonal ilişkili olduğu bulunmuştur. Anahtar Kelimeler: Karbapenemaz, Klebsiella pneumoniae, KPC, NDM, OXA, Carbapenemase producing K. pneumoniae is multi resistant because of usually carries the other resistance mechanisms and these infections are associated with high mortality rates. Carbapenemases, especially if caused by a decrease in sensitivity to one of the carbapenems, which are considered of high importance in epidemiology. This study aimed to investigate presence of carbapenemases in the carbapenem-resistant K. pneumoniae strains with various phenotypic and genotypic methods and possible clonal relationships between isolates with PFGE analyze which has begun to be observed since 2012 in our hospital.In the results of our study, the highest sensitivity was found with ertapenem (%96,8) for screening presence of carbapenemase in K. pneumoniae and it has been demonstrated that the MHT is the most sensitive phenotypic method used to confirm the presence carbapenemase.In our hospital, any of carbapenem resistant K. pneumoniae strains isolated as the infectious agent has been detected blaKPC gene. In our hospital, carbapenem resistance being observed in K. pneumoniae was determined to be due to the other carbapenem resistance mechanisms (NDM, OXA-48), most frequent OXA-48 gene and the important part of K. pneumoniae strains in our hospital were found to be associated with each clonal. Keywords: Carbapenemase, Klebsiella pneumoniae, KPC, NDM, OXA, Tez (Doktora) - Süleyman Demirel Üniversitesi, Sağlık Bilimleri Enstitüsü, Tıbbi Mikrobiyoloji Anabilim Dalı, 2015., Kaynakça var.
160. Pilomatrixoma of Ear Lobe: a Case Report
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ALTINTAŞ, Hande, ÇETİN, Emel Dikicioğlu, and ÇAKMAK, Hüseyin Özcan
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pilomatriksoma,kulak lobülü,kıl folikülü ,pilomatrixoma,ear lobule,hair follicle - Abstract
Pilomatrixoma is the benign calcified neoplasm of the skin. It originates from the hair follicle matrix. It usually represent as a solitary subcutaneous mass of the head and neck region in the children. It is frequently misdiagnosed as if not considered in the differential diagnosis. Surgery is the choice of treatment. Pediatric patient with a firm mass of ear lobule is presented in this article. Pilomatrixoma is reviewed with clinical findings, pathogenesis, and treatment methods, Pilomatriksoma Malherbe’nin kalsifiye epitelyoması , selim kalsifiye epitelyal tümördür. Kıl folikülü matriksinden köken alır. Çocuklarda baş boyun bölgesinde, soliter subkutan kitle şeklinde klinik verir. Ayırıcı tanıda akılda tutulmadığı zaman sıklıkla yanlış tanı alır. Tedavisi cerrahidir. Bu makalede kulak lobülünde sert kitle ile kliniğimize başvuran pediatrik hasta sunulmuş ve pilomatriksoma klinik ve patolojik özellikleri ile gözden geçirilmiştir
161. Bir Üniversite Hastanesinde Çalışılan Örneklerde HBs Ag, Anti-HCV, Anti-HIV Seropozitiflik Oranları
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Arıdoğan, Buket Cicioğlu, Aynali, Ayşe, Temel, Esra Nurlu, Çarsancaklı, Süleyman Akif, Çetin, Emel Sesli, and Başka Kurum
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seropositivity ,anti-HCV ,anti-HIV 1+2 ,seropozitiflik ,HBs Ag - Abstract
Amaç: Bu çalışma, çeşitli klinik bölümlerinden istem yapılarak laboratuvarımızda çalışılan HBs Ag, anti-HCV, anti- HIV testlerinin retrospektif olarak değerlendirilmesi ile sağlık çalışanlarının günlük çalışma ortamlarında karşılaştıkları risklere karşı farkındalığını artırmak ve koruyucu önlemlerin önemini vurgulamak amacıyla planlanmıştır. Gereç ve Yöntem: Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi Tıbbi Mikrobiyoloji Laboratuvarına, 1 Ocak- 31 Aralık 2013 tarihleri arasında, çeşitli klinik bölümlerden gönderilen serum örneklerinde çalışılan; 16865 HBs Ag, 16098 anti-HCV, 13758 anti- HIV 1+2 test sonucu geriye dönük olarak incelenmiştir. HBs Ag, anti-HCV, anti- HIV 1+2 tetkikleri (Vıtros, Johnson&Johnson, ABD) kemilüminesans yöntemi ile firma önerileri doğrultusunda çalışılmış ve değerlendirilmiştir. Anti-HIV 1+2 test sonucu pozitif olan serum örnekleri, uygulanan algoritma gereğince, Türkiye Halk Sağlığı Kurumuna gönderilmiş ve Western Blot (WB) yöntemi ile çalışılarak değerlendirilmesi sağlanmıştır. Bulgular: Laboratuvarımızda çalışılan kan örneklerinde % 5.9 oranında HBs Ag pozitifliği, % 2.3 oranında anti-HCV pozitifliği, % 0.3 oranında anti-HIV 1+2 pozitifliği tespit edilmiştir. Anti-HIV 1+2 test sonucu pozitif olan ve WB yöntemi ile çalışılarak değerlendirilen serum örneklerinde % 0.01 oranında pozitif sonuç alınmıştır. Sonuç: Araştırmamızda sağlık çalışanlarının HBV, HCV ve HIV gibi enfeksiyöz ajanlarla karşılaşma olasılığının hiç de düşük olmadığı gözlenmiş ve mesleki bulaş riskinin en aza indirilmesi için sağlık personelinin eğitimi, HBV’ye karşı aşılanması, aşılamanın henüz uygulanmadığı durumlarda ve seronegatif olsa bile enfeksiyonun pencere döneminde olma olasılığı da düşünülerek bulaşabilecek tüm enfeksiyon ajanlarına karşı koruyucu önlemlerin alınması gerektiği sonucuna varılmıştır., Objective: In this study, we aimed to determine the seropositivity of HBsAg, anti-HCV, anti-HIV 1+2 among individuals admitted to Suleyman Demirel University Research and Education Hospital. Material and Methods: HBs Ag (16865 tests), anti-HCV (16098 tests) and anti-HIV 1+2 (13758 tests) results were retrospectively evaluated among individuals admitted to our hospital between January 2013 and December 2013. HBs Ag, anti-HCV, anti- HIV 1+2 tests in the serum of patients were measured with chemiluminescence method (Vıtros, Johnson&Johnson, USA). Results: The seroprevalence of HBs Ag, anti-HCV and anti-HIV 1+2 were found as 5.9 %, 2.3 % and 0.01 %, respectively. Conclusion: Consequently, healthcare workers must be trained about occupational diseases and should be vaccinated against Hepatitis B. In order to prevent the infection risk, should be take measure, against potentially infectious agents.
162. Karbapenem dirençli klebsiella pneumoniae suşlarında çeşitli antibiyotik kombinasyonlarının etkinliğinin araştırılması = Evaluation of the efficacy of various antibiotic combinations against carbapenem resistant klebsiella pneumoniae strains
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Köle, Merve. author 219050, Sesli Çetin, Emel, 1972- 11589 thesis advisor, and Süleyman Demirel Üniversitesi. Tıp Fakültesi. Tıbbi Mikrobiyoloji Anabilim Dalı. 12188 issuing body
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Süleyman Demirel Üniversitesi - Abstract
Günümüzde kullanılan birçok antibiyotiğin Klebsiella pneumoniae enfeksiyonlarının tedavisinde yetersiz kaldığı bildirilmektedir. Son yıllarda yapılmış çalışmalara rağmen karbapenem dirençli K. pneumoniae (KDKp) tedavisi için net tedavi rejimleri belirlenememiştir. Bu çalışmada KDKp enfeksiyonlarının tedavisinde sıklıkla kullanılan kolistin ve meropenem ile ülkemizde kullanıma girmesi beklenen seftazidim-avibaktamın tek başına ve ikili kombinasyonlarının farklı karbapenemaz üreten KDKp izolatlarına karşı etkinliğinin araştırılması amaçlanmıştır. Araştırmamız Süleyman Demirel Üniversitesi Tıbbi Mikrobiyoloji Ana Bilim Dalı bakteriyoloji laboratuvarında çeşitli klinik örneklerden enfeksiyon etkeni olarak izole edilen ve karbapenem direnci karbapenemaz inaktivasyon testi ile doğrulanan 42 K. pneumoniae suşunda yapılmıştır. İzolatların karbapenemaz genleri polimeraz zincir reaksiyonu (PZR) yöntemi ile tespit edilmiş, CZA, MEM ve COL'e karşı duyarlılıkları ve bu antibiyotiklerin ikili kombinasyonlarının sinerji aktiviteleri dama tahtası (checkerboard) ve zamana bağlı öldürme (time-kill) yöntemleri ile in vitro olarak incelenmiştir. Kategorik verilerin istatistiksel değerlendirmesi Fisher's exact test ile yapılmış, "p" değerinin 0,05 veya daha küçük olması gruplar arası farklılık açısından anlamlı kabul edilmiştir. Karbapenem dirençli izolatların 34'ü (%81) OXA-48, 5'i (%11,9) OXA-48+NDM ve 3'ü (%7,1) OXA-48+KPC pozitifti. Dama tahtası testinde CZA+MEM ve CZA+COL kombinasyonları ile izolatlarının %97,6'sına karşı sinerjizm saptanırken MEM+COL kombinasyonunda bu oran %50'idi. Zaman öldürme testinde OXA-48 pozitif suşta CZA+MEM ve CZA+COL, OXA-48+NDM pozitif suşta CZA+COL ve MEM+COL, OXA-48+KPC pozitif suşta CZA+MEM ve CZA+COL kombinasyonlarında sinerjizm saptanmıştır. İzolatların kolistine direnç durumu ile antibiyotik kombinasyonlarının dama tahtası sonuçları arasında anlamlı ilişki görülmemiştir (pCZA+MEM= 0,33; pCZA+COL= 0,11; pMEM+COL=0,61). Hastanemizde KDKp suşlarında en yaygın karbapenemaz tipinin OXA-48 olduğu ve CZA'nın MEM ve COL antibiyotikleri ile ikili kombinasyonlarının bu suşlara karşı sinerjik etkileşim gösterme potansiyelinin yüksek olduğu görülmüştür. Anahtar Kelimeler: Karbapenem dirençli Klebsiella pneumoniae, seftazidim-avibaktam, meropenem, kolistin, sinerjizm, dama tahtası testi, zamana bağlı öldürme testi., It has been reported that many antibiotics used today fail to treat Klebsiella pneumoniae infections effectively. Despite many studies in recent years, the definitive treatment for carbapenem-resistant Klebsiella pneumoniae (CRKP) infections is still uncertain. In this study, it was aimed to investigate in vitro activities of colistin and meropenem, which are frequently used in the treatment of CRKP infections, and ceftazidime-avibactam, which is expected to be used in our country soon, alone or in combination against different carbapenemase-producing isolates of CRKP. The study was carried out at the bacteriology Laboratory of Suleyman Demirel University Medical Microbiology Department. Forty-two CRKP strains, which were isolated from various clinical specimens as infectious agents and confirmed as carbapenemase producers by carbapenemase inactivation test were enrolled in this study. The carbapenemase genes of the isolates were determined by the polymerase chain reaction (PCR) method. Antimicrobial susceptibilities of CRKP strains to CZA, MEM, and COL were determined by the broth microdilution method and in vitro synergy activities of dual combinations of these drugs were evaluated by checkerboard and time-kill methods. Statistical evaluation of categorical data was performed using Fisher's exact test, and p-value of less than 0.05 was considered statistically significant in terms of difference between groups. Of the 42 CRKP isolates 34 (81%) were only OXA-48 positive, 5 (11.9%) were OXA-48+NDM and 3 (7.1%) were OXA-48+KPC positive. In the checkerboard test, synergy was detected against 97.6% of the isolates both with CZA+MEM and CZA+COL combinations, whereas this rate was 50% with MEM+COL. In the time-kill test, synergy was detected with CZA+MEM and CZA+COL combinations in the OXA-48 positive isolate and OXA-48+KPC positive isolate, while synergy was detected with CZA+COL and MEM+COL combinations in the OXA-48+NDM positive isolate. There was no significant relationship between whether the isolates were resistant to colistin or not and the checkerboard results of antibiotic combinations (pCZA+MEM= 0.33, pCZA+COL= 0.11, pMEM+COL=0.61). Results of our study revealed that the most common carbapenemase type in CRKP strains was OXA-48 in our hospital, and the combinations of CZA with MEM and COL had high potential for synergism against these strains. Keywords: Carbapenem resistant Klebsiella pneumoniae, ceftazidime-avibactam, meropenem, colistin, synergism, checkerboard test, time-kill test., Tez (Uzmanlık) - Süleyman Demirel Üniversitesi, Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, 2021., Kaynakça var.
163. Süleyman Demirel Üniversitesi Tıp Fakültesi hastanesinde izole edilen gram negatif nonfermenter bakterilerde metallo beta-laktamaz enzim aktivitesinin araştırılması
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Tetik, Tülay. 11596 author, Sesli Çetin, Emel, 1972- thesis advisor 11589, and Süleyman Demirel Üniversitesi. Tıp Fakültesi. Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı. issuing body 11582
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Süleyman Demirel Üniversitesi - Abstract
Çalışmamız Ocak 2007-Aralık 2007 tarihleri arasında mikrobiyoloji laboratuvarına gönderilen çeşitli klinik örneklerden izole edilen 52 P. aeruginosa ve 61 A. baumanii olmak üzere toplam 113 bakteri kökeni ile yapılmıştır. Bakterilerin tanımlanması standart klinik mikrobiyolojik yöntemler ile yapılmış, bu yöntemlerle tanımlamanın yapılamadığı durumlarda BBL Crystal İdendification Systems (BD, USA) sistemleri kullanılmıştır. Bakterilerin invitro koşullarda antibiyotiklere direnç durumları CLSI önerileri doğrultusunda disk difüzyon yöntemi ile belirlenmiş, MBL üretimi kombine disk yöntemi, çift disk sinerji, modifıye Hodge testi ve E test yöntemleri ile araştırılmıştır. İmipenem dirençli Acinetobacter kökenlerinde MBL üretimi kombine disk metodu ile % 75, IMP-EDTA çift disk sinerji testi ile % 84, modifıye Hodge testi ile % 74, E test ile % 80; imipeneme dirençli Pseudomonas kökenlerinde kombine disk metodu ile % 62, IMPEDTA çift disk sinerji testi ile % 73 Modifiye Hodge testi ile % 58 ve E test ile % 40 oranında bulunmuştur. MBL üreten bakterilerin aztreonam dışında tüm beta laktamlara dirençli olmaları ve klinik uygulamada uygun bir MBL inhibitörünün bulunmaması, ayrıca MBL ile aminoglikozid direnç genlerinin genetik olarak birarada bulunması epidemiyolojik açıdan MBL varlığının tespit edilmesini çok önemlidir. MBL araştırılmasında hızlı, basit, duyarlılık ve özgüllüğü yüksek olan iyi bir fenotipik tarama yöntemine gerek vardır. Günümüzde var olan tarama yöntemlerinin hiçbiri yeterli değildir. Bu sebeple tarama sonuçlarının moleküler yöntemlerle doğrulanması gereklidir. Yaptığımız çalışma hastanemizde MBL üreten suşların belirlenmesi ve kontrolü ile ilgili olarak daha ileri araştırmaların yapılması gerektiğini düşündürmüştür. Anahtar sözcükler: MBL üretimi, Pseudomonas, Acinetobacter, fenotipik yöntemler., A total of 113 strains (52 Pseudomonas, 61 Acinetobacter), isolated from clinical specimens sent to our Microbiology and Clinical Microbiology laboratory between the dates of January 2006-2007, were studied. The bacteria were identified by standart clinical microbiological tests, BBL Crystal İdendification Systems (BD, USA). The invitro antimicrobial resistance of bacteria was determined by the disk diffusion method according to Clinical and Laboratory Standards Institute (CLSI) guideline. The MBL production was found using combined disk method, double disk synergy test, modified Hodge test and E test. Among imipenem resistant Acinetobacter strains, the MBL production determined by combined disc method was found as 75 %. The MBL production vvas found as 84 % by IPM-EDTA double disk synergy test, as 74 % by modifıed Hodge test and as 80 % by E test. in imipenem resistant Pseudomonas strains, the MBL production was found as 62 % by combined disc method, as 73 % by IPM-EDTA double disk synergy test, 58 % by moditıed Hodge test and as 40 % by E test. The determinination of the presence of MBL is very important in point of epidemiologic view because MBL producing bacteria are resistant to all beta lactams except aztreonam and also because the MBL and aminoglycosid resistance gene were present together genetically. Additionally there is not a MBL inhibitor for clinical treatment. There is a need of quick, easy fenotipic screening test with high specifıty and sensitivity. Today neither of the present screening methods are sufficient. For this reason there is a need to confırm the screening results by molecular techniques. This study suggested the need for advanced studies for the determination and control of MBL producing strains in our hospital. Keywords: MBL production, Pseudomonas, Acinetobacter, fenotipic methods., Tez (Uzmanlık) - Süleyman Demirel Üniversitesi, Tıp Fakültesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı, 2008., Kaynakça var.
164. Community Acquired Meticilline Resistance S. Aureus
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GÜNEŞ, Hayati and ÇETİN, Emel Sesli
- Subjects
methicillin resistance,Staphylococcus aureus ,metisilin rezistans,Staphylococcus aureus - Abstract
CA-MRSA community-acquired, or community-associated Staphylococcus aureus has appeared with increasing frequency and is now epidemic within certain community populations. Whereas hospital associated MRSA is almost always found in persons with established risk factors associated with prior medical treatment, these are not present in CA-MRSA. This form causes serious skin and soft tissue infections in otherwise healthy persons who have not been recently hospitalized or undergone invasive medical procedures. CA-MRSA has been identified most frequently among prisoners, athletes, children, men who have sex with men, and military recruits. A major difference between the two types that CA-MRSA possesses a potent toxin called PantonValentine leukocidin, which attacks infection-fighting leukocytes. The most serious form of CA-MRSA infection causes necrotizing fasciitis. Also it causes serious necrotizing pneumonia and increased complications of hematogenous osteomiyelitis. Two clones strains of staph, called USA300 and USA400, are associated with the CA-MRSA. CA-MRSA has stphylococcal casette chrosome SCC mec IV and V as resistance genes unlike HA-MRSA which has I, II and III SCC mec. CA-MRSA is still susceptible to several antibiotic classes outside of the beta-lactam group and macrolides. Bacteria can develope resistance to other antibiotics. Therefore clinicians must be careful at use of them, TK-MRSA toplumdan kazanılmış veya toplumla ilişkili Staphylococcus aureus artan yaygınlıkta görülmeye başlanmış ve belli topluluklarda yeni bir epidemi olarak ortaya çıkmıştır. Hastaneyle ilişkili MRSA Hİ-MRSA hemen daima daha önceden uygulanan medikal tedaviyle ilgili risk faktörlerine sahip kişilerde ortaya çıkıyorsa da TK-MRSA’da bu özellikler bulunmaz. Bu form, daha önceden medikal tedavi almamış veya hastaneye yatmamış sağlıklı kişilerde ortaya çıkan ciddi deri ve yumuşak doku enfeksiyonlarının etkenidir. TK-MRSA; mahkûmlar, koşucular, çocuklar, eşcinsel erkekler ve askeri birliklerde daha sık olarak identifiye edilmiştir. İki tip arasındaki majör farklılık, TK-MRSA’nın Panton-Valentin Lökosidin adı verilen ve lökositlere saldırarak enfeksiyon oluşturan potent bir toksine sahip olmasıdır. TK-MRSA enfeksiyonunun en ciddi formu olan nekrotizan fasiittir. Aynı zamanda ciddi nekrotizan pnömoni ve hematojen osteomiyelitin artmış komplikasyonlarının da nedenidir. USA 300 ve USA 400 olarak adlandırılan İki stafilokok klonu suş TK-MRSA ile ilişkilidir. TK-MRSA, direnç geni olarak stafilokokal kaset kromozomu SCC mec I, II ve III’e sahip olan Hİ-MRSA’nın aksine SCC mec IV ve V’e sahiptir. TK-MRSA halen beta-laktam ve makrolid grubu dışında birkaç antibiyotik grubuna duyarlıdır. Bakteri diğer antibiyotiklere de direnç geliştirebilir. Bu yüzden klinisyenler bu ilaçların kullanımında dikkatli olmalıdırlar
165. Meyerson Phenomenon as a Component of Melanoma in situ.
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Sezer, Engin, Durmaz, Emel Özturk, Çetin, Emel, and Şahin, Sedef
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- 2016
166. Primary Cutaneous Angiosarcoma of the Scalp with Cranial Invasion in a Patient with Metastatic Breast Cancer.
- Author
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YILDIRIM, SELDA, ERDEMOGLU, YELIZ, DURMAZ, EMEL ÖZTÜRK, ERFAN, GAMZE, DUMAN, DENIZ, ÇETIN, EMEL DIKICIOGLU, Yıldırım, Selda, Erdemoğlu, Yeliz, Öztürk Durmaz, Emel, and Dikicioğlu Çetin, Emel
- Subjects
- *
ANGIOSARCOMA , *METASTATIC breast cancer , *DELAYED diagnosis , *BRAIN metastasis , *SCALP , *HERPES zoster - Abstract
Idiopathic cutaneous angiosarcoma (CA) of the head and neck is a distinct subtype of angiosarcoma most commonly presenting as a single or multiple purple, bruise-like patches that arise de novo and enlarge over several months. In clinical practice, both misdiagnosis and delayed diagnosis are frequently encountered. Here, we present a case of idiopathic CA on the scalp with invasion to the cranium in a patient with breast cancer metastatic to the brain. The patient was initially misdiagnosed and mistreated with herpes zoster and breast cancer metastatic to the skin, which led to a delayed diagnosis by two months until dermatologic evaluation. The diagnosis was then firmly established as CA based on consistent clinical and histological features. Since the tumor was inoperable, radiotherapy and chemotherapy were been considered as the appropriate adjuvant modes of therapy. Despite an initial favorable response, the disease demonstrated a rapidly progressive course and the patient succumbed to the disease within six months. This report briefly reviews the clinical and histological portrait and management options for this aggressive tumor. [ABSTRACT FROM AUTHOR]
- Published
- 2021
167. Reprodüktif çağdaki kadınlarda toksoplazmozis seroprevalansı.
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Güneş, Hayati, Kaya, Selçuk, Çetin, Emel Sesli, Taş, Tekin, and Demirci, Mustafa
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- *
TOXOPLASMOSIS , *DISEASES in women , *WOMEN'S health , *PARASITIC diseases , *COMMUNICABLE diseases , *DISEASES - Abstract
Seroprevalance of toxoplasmosis in reproductive women Toxoplasmosis is a parasitic disease caused by a protozoon, Toxoplasma gondii. Infection, acquired during pregnancy may cause intrauterine damage and sequelae in the newborn. Therefore toxoplasmosis must be searched in reproductive women. We aimed to investigate toxoplasmosis seroprevalance in 433 patients (18-49 age group) attending the Obstetric & Gynecology clinic and policlinic of Suleyman Demirel University Researching and Application Hospital between August 2005-July 2006. We separated patients to three groups: 18-25, 26-35 and 36≤ age groups. IgG positivities were respectively 21.3 %, 26.1% and 28.2%; IgM positivities were respectively 0 %, 2.5 % and 7.3 %.%. IgG avidity results detected from 2 patients in 26-35 age group was high. In conclusion, the importance of searching the seroprevalance of toxoplasmosis, which is still considered as an important health problem in reproductive women, must be emphasized. [ABSTRACT FROM AUTHOR]
- Published
- 2008
168. Comparison of polimerase chain reaction and serological methods in the diagnosis of hepatitis C virus infection.
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Kaya, Selçuk, Cicioğlu-Arıdoğan, Buket, Çetin, Emel Sesli, Adiloğlu, Ali K., and Demirci, Mustafa
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- *
LIVER disease diagnosis , *ALCOHOLIC liver diseases , *POLYMERASE chain reaction , *HEPATITIS C , *RNA , *ENZYME-linked immunosorbent assay - Abstract
Diagnosis of HCV infection depends on detecting anti-HCV antibody (HCV-Ab) through serologic methods or on detecting of HCV RNA with molecular methods. The aim of this study was to evaluate the use of serological methods and polymerase chain reaction (PCR) for the diagnosis of HCV infection. A total of 87 patients were studied. HCV RNA was detected by real time PCR with GeneAmp 5700 Sequence Detection System. Thirty (34.5%) of 87 patients were HCV RNA positive and 60 (69%) were HCV-Ab positive. Fourteen of the HCV-Ab positive patients had low antibody titers (below 2.5 U/ml). None of these was found as HCV RNA positive. All of HCV-Ab negative patients were HCV RNA negative and all of the HCV RNA positive cases were HCV-Ab positive also. Since HCV RNA was negative in all of HCV Ab negative patients, it can be suggested that HCV-Ab detection by a reliable ELISA technique in the routine procedure is sufficient to determine HCV infection . On the other hand, low titer positive HCV-Ab cases must be restudied by ELISA, and PCR for HCV RNA confirmation. By using ELISA and PCR methods at the same time would help to confirm the positive results and early diagnosis. [ABSTRACT FROM AUTHOR]
- Published
- 2007
169. Bir Üniversite Hastanesinde Çalışılan Örneklerde HBs Ag, Anti-HCV, Anti-HIV Seropozitiflik Oranları.
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Aynali, Ayşe, Arıdoğan, Buket Cicioğlu, Temel, Esra Nurlu, Çarsancaklı, Süleyman Akif, and Çetin, Emel Sesli
- Abstract
Objective: In this study, we aimed to determine the seropositivity of HBsAg, anti-HCV, anti-HIV 1+2 among individuals admitted to Suleyman Demirel University Research and Education Hospital. Material and Methods: HBs Ag (16865 tests), anti-HCV (16098 tests) and anti-HIV 1+2 (13758 tests) results were retrospectively evaluated among individuals admitted to our hospital between January 2013 and December 2013. HBs Ag, anti-HCV, anti-HIV 1+2 tests in the serum of patients were measured with chemiluminescence method (Vıtros, Johnson&Johnson, USA). Results: The seroprevalence of HBs Ag, anti-HCV and anti-HIV 1+2 were found as 5.9 %, 2.3 % and 0.01 %, respectively. Conclusion: Consequently, healthcare workers must be trained about occupational diseases and should be vaccinated against Hepatitis B. In order to prevent the infection risk, should be take measure, against potentially infectious agents. [ABSTRACT FROM AUTHOR]
- Published
- 2016
170. Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi Mikrobiyoloji Laboratuvarında çeşitli klinik örneklerden izole edilen klebsiella pneumoniae suşlarındaki karbapenemaz varlığının araştırılması
- Author
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Çiftçi, Esra, Sesli Çetin, Emel, and Tıbbi Mikrobiyoloji Anabilim Dalı
- Subjects
Klebsiella pneumoniae ,Drug resistance-microbial ,Beta lactamases ,Carbapenems ,Mikrobiyoloji ,Antibiotics ,Drug resistance ,Anti infective agents ,Microbiology ,Oxacillin ,Drug hypersensitivity - Abstract
Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi Mikrobiyoloji Laboratuvarında Çeşitli Klinik Örneklerden İzole Edilen Klebsiella Pneumoniae Suşlarındaki Karbapenemaz Varlığının AraştırılmasıKarbapenemaz üreten K. pneumoniae genellikle diğer direnç mekanizmalarını da taşıdığı için çoklu dirençlidir ve karbapenemaz üreten K. pneumoniae enfeksiyonları yüksek mortalite hızları ile ilişkilidir. Karbapenemazların, özellikle de karbapenemlerden birine duyarlıkta azalmaya neden olmuşsa, epidemiyolojik açıdan yüksek önem taşıdığı kabul edilir.Çalışmamızda hastanemizde 2012 yılından itibaren gözlemlenmeye başlanan karbapenem dirençli K. pneumoniae suşlarında karbapenemaz varlığının çeşitli fenotipik ve genotipik yöntemlerle araştırılması ve izolatlar arasındaki olası klonal ilişkilerin PFGE ile analizi amaçlanmıştır.Çalışmamızın sonucunda K. pneumoniae'da karbapenemaz varlığının taranmasında en yüksek duyarlılık ertapenem ile bulunmuş (%96,8) olup karbapenemaz varlığının doğrulanması için uygulanan fenotipik yöntemlerden en duyarlı olanın ise MHT olduğu ortaya konulmuştur.Hastanemizde enfeksiyon etkeni olarak izole edilen karbapenem dirençli K. pneumoniae suşlarının hiçbirinde dirence sebep olan gen olarak blaKPC tespit edilmemiştir. Hastanemizde K. pneumoniae'larda gözlenmekte olan karbapenem direncinin diğer karbapenem direnç mekanizmalarına (NDM, OXA-48), en sık da OXA-48 genine bağlı olduğu tespit edilmiş olup hastanemizdeki K. pneumoniae suşlarının önemli kısmının birbirleriyle klonal ilişkili olduğu bulunmuştur. Anahtar Kelimeler: Karbapenemaz, Klebsiella pneumoniae, KPC, NDM, OXA Investigation of Carbapenemase Presence in Klebsiella Pneumoniae Isolates Obtained from Various Clinical Samples in Microbiology Laboratory of Süleyman Demirel University of Faculty of Medicine HospitalCarbapenemase producing K. pneumoniae is multi resistant because of usually carries the other resistance mechanisms and these infections are associated with high mortality rates. Carbapenemases, especially if caused by a decrease in sensitivity to one of the carbapenems, which are considered of high importance in epidemiology.This study aimed to investigate presence of carbapenemases in the carbapenem-resistant K. pneumoniae strains with various phenotypic and genotypic methods and possible clonal relationships between isolates with PFGE analyze which has begun to be observed since 2012 in our hospital.In the results of our study, the highest sensitivity was found with ertapenem (%96,8) for screening presence of carbapenemase in K. pneumoniae and it has been demonstrated that the MHT is the most sensitive phenotypic method used to confirm the presence carbapenemase. In our hospital, any of carbapenem resistant K. pneumoniae strains isolated as the infectious agent has been detected blaKPC gene. In our hospital, carbapenem resistance being observed in K. pneumoniae was determined to be due to the other carbapenem resistance mechanisms (NDM, OXA-48), most frequent OXA-48 gene and the important part of K. pneumoniae strains in our hospital were found to be associated with each clonal. Keyword: Carbapenemase, Klebsiella pneumoniae, KPC, NDM, OXA 96
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- 2015
171. Clınıcal pharmacokınetıc evaluatıon of busulfan and therapeutıc drug monıtorıng
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Nazli, Mehtap, Çetin, Emel Öykü, Karasulu, Ercüment, Ege Üniversitesi, Sağlık Bilimleri Enstitüsü, Çetin Uyanıkgil, Emel Öykü, and Biyofarmasötik ve Farmokokinetik Anabilim Dalı
- Subjects
Biyofarmasötik ve Farmakokinatik A.B.D ,Chromatography-liquid ,Mass spectrometry ,Pharmacy and Pharmacology ,Antineoplastic agents ,Drugs ,Pharmacokinetics ,Therapeutics ,Dose-response relationship-drug ,Eczacılık ve Farmakoloji ,Busulfan - Abstract
Busulfan; Kemik İliği Transplantasyonu yapılacak olan hastalarda hazırlama rejiminde uygulanan antineoplastik bir ilaçtır. Bu çalışmanın amacı; Busulfanın pediyatrik hasta grubunda bireylerarası farklılıkları ortadan kaldıracak şekilde doz rejimini optimize etmeyi ve bu optimizasyonun sürdürülebilirliğini sağlayacak bir yöntem geliştirmektir. Bu amaçla, Ege Üniversitesi Tıp Fakültesi Pediyatrik Onkoloji Bilim Dalı Kemik İliği Transplantasyonu Ünitesi’nde transplantasyona hazırlama rejiminde klasik miyeloablatif dozda Busulfan uygulanan hastalardan alınmış kan örnekleri ile çalışılmıştır. Kan örneği alma zamanı bilim dalı tarafından Busulfan sağaltım prosedürüne göre belirlenmiştir. Alınan kan örnekleri, (liquid chromatography-mass spectrometry, sıvı kromatografisi-kütle spektrometresi) LC-MS/MS tekniğiyle analizi gerçekleştirilmek üzere stabilitesini koruduğu bilinen şartlarda saklanmıştır. Yöntem, LC-MS/MS tekniği ile miktar tayini gerçekleştirmek amacıyla Food and Drug Administration (FDA, Gıda ve İlaç Örgütü)’nın kriterlerine uygun olarak valide edilmiştir. Validasyon sırasında sistemin doğrusallık, doğruluk, kesinlik, tekrarlanabilirlik, özgünlük, geri kazanım ve kararlılık parametreleri belirlenmiş ve sonuçlar istatistiksel olarak değerlendirilmiştir. Yapılan validasyon çalışmaları sonrasında, yaşları 0.75-18.42 arasında değişen 8 pediyatrik hastadan alınan kan örneklerinde Busulfanın miktar tayini gerçekleştirilmiştir. Analiz sonucu ulaşılan Busulfan kan düzeyi değerleri kullanılarak WinNonLin® programı aracılığıyla farmakokinetik parametreler hesaplanmıştır. Hastalarda ilk doz i.v. Busulfan uygulamasına ait analiz sonucu hesaplanan farmakokinetik parametrelerden; eliminasyon hız sabiti (kel) 0.1548-0.5742 saat-1, dağılım hacmi (Vd) 0.294-0.684 L/kg, klirens (CL) 0.059-0.345 L/saat/kg ( 0.983-5.75 mL/dk/kg ), plazma derişimi-zaman grafiğinde eğri altında kalan alan (EAA) 702.1-1800.5 µM·dk, kararlı durum plazma derişimi (Css) 558-1200 ng/mL değerleri arasında bulunmuştur. Bu farmakokinetik parametreler birey içi ve bireylerarasında istatistiksel yönden değerlendirilmiştir. Hastalara ait eliminasyon hız sabiti ve dağılım hacmi parametreleri ile öngörülen kan düzeyi değerleri hesaplanmıştır. Benzer şekilde pediyatrik hastalarda kabul edilmiş farmakokinetik parametreler ile teorik olarak görülmesi beklenen Busulfan kan düzeyi hesaplanmıştır. Bu değerler ile analiz sonucu bulunan değerler karşılaştırılmıştır. Tüm bu retrospektif değerlendirmeler sonucunda; analiz sonucu bulunan Busulfan kan düzeyi ve hesaplanan farmakokinetik parametreler hem hastalar arasında hem birey içinde değişkenlik göstermiştir. Busulfan pediyatrik hastalarda kilosuna uygun standart dozda kullanılmıştır. Busulfanın kan düzeyi 8 hastadan 3’ünde, FDA’nın Busulfan için EAA parametresi açısından belirlediği 900-1500 µM·dk olan sağaltımsal aralığın (SA) dışında bulunmuştur (2 hastanın kan düzeyi SA’nın altında, 1 hastanın SA’nın üstünde). Bu durum Busulfan uygulanan pediyatrik hastalarda Sağaltımsal İlaç İzlemi (Sİİ)’nin gerekliliğini ortaya koymaktadır. Geliştirdiğimiz bu yöntem analizin oldukça kısa sürede gerçekleştirilmesine imkan sağlamaktadır. Doz modifikasyonuna da gidilerek gerçekleştirilecek Sİİ çalışmasının; Busulfanın kan düzeyinin SA’nın üstünde bulunması sonucunda ortaya çıkan hepatik veno-oklüzif hastalık gibi toksik etkilerden, etkinsiz düzeyde bulunması ile gelişen transplantasyon reddi ve relaps gibi olumsuzluklardan kaçınmaya olanak sağlayacağını, dolayısıyla pediyatrik hastalarda sağaltım ve sağkalım oranını geliştireceğini düşünmekteyiz.
- Published
- 2011
172. Hastane infeksiyonu etkeni olarak belirlenmiş, çoklu antibiyotik direnci gösteren Acinetobacter baumannii klinik izolatlarının imipenem ve meropenemin, sefoperazon-sulbaktam, ampisilin-sulbaktam, polimiksin B ve rifampin ile kombinasyonlarına duyarlılığının in vitro araştırılması
- Author
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Özseven, Ayşegül, Sesli Çetin, Emel, and Tıbbi Mikrobiyoloji Anabilim Dalı
- Subjects
Acinetobacter baumannii ,Drug resistance-microbial ,Mikrobiyoloji ,Clinical Microbiology and Infectious Diseases ,Cefoperazone ,Microbiology ,Antibiotics-combined ,Imipenem ,Cross infection ,Sulbactam ,Drug resistance ,Anti infective agents ,Klinik Bakteriyoloji ve Enfeksiyon Hastalıkları ,Ampicillin ,Rifampin ,Polymyxin B - Abstract
Son yıllarda, özellikle yoğun bakım ünitelerinde antimikrobiyal ajanların çoklu ilaç dirençli (MDR) Acinetobacter baumannii infeksiyonlarının tedavisindeki yetersizliği, klinisyenleri zorlamakta ve kombinasyon tedavilerine yönlendirmektedir. Bu çalışmada, Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesi Yoğun Bakım Servislerinden izole edilmiş olan, 34 MDR A.baumannii izolatının, imipenem (İPM) ve meropenemin (MEM), sefoperazon/sulbaktam (SCP), ampisilin/sulbaktam (SAM), polimiksin B (PB) ve rifampin (RİF) ile olan kombinasyonlarına duyarlılığı in vitro olarak dama tahtası yöntemi ile araştırıldı.MDR A.baumannii en fazla trakeal aspirat (%50) kültürlerinden soyutlandı. Disk difüzyonla, izolatların tamamı imipenem, meropenem, tikarsilin, sefepim, amikasin ve siprofloksasine dirençli bulundu. En düşük direnç oranı minosiklin (%44,2) için saptandı. İzolatların tamamında (%100) imipenem, meropenem, ampisilin/sulbaktam ve sefoperazon/sulbaktam için dirençli ve polimiksin B için duyarlı sınırlarda MİK değerleri bulundu.Sinerji oranları MEM/SAM kombinasyonunda en yüksek (%94,1) bulunurken daha sonra sırasıyla, İPM/SAM (%88,2), İPM/RİF (%73,5), İPM/SCP (%70,6), İPM/PB (%38,2), MEM/RİF (%17,6), MEM/SCP (%8,8) ve MEM/PB (%2,9) olarak saptandı. Kombinasyonların hiçbirinde antagonizma gözlenmedi. Bu yüzden, bu sinerjistik kombinasyonlarla ilgili bulgularımızın yoğun ilgiyi hak ettiğini ve çoğul ilaç dirençli bu organizmalar tarafından oluşturulan enfeksiyonlarda, yenilikçi ve etkili tedavi seçeneklerine temel olabileceğini söyleyebiliriz.Sonuç olarak MDR A.baumannii kökenlerine karşı kullanılan antibiyotik kombinasyonlarının etkinliği ile ilgili birçok in vitro çalışmada olumlu sonuçlar bildirilmiş olsa da bu verilerin klinik bulgularla da desteklendiği geniş kapsamlı ileri çalışmalara ihtiyaç vardır. In recent years, the inadequacy of antimicrobial agents available to treat infections particularly in ICU?s due to MDR Acinetobacter baumannii, has constrained clinicians and forced them to use combination therapies. In this study, the antibacterial effect of imipenem and meropenem in combination with cefoperazone/sulbactam, ampicillin/sulbactam, polymyxin B and rifampin has been evaluated in vitro by the checkerboard microdilution method against 34 clinical isolates of multidrug resistant (MDR) A.baumannii, all collected from the Intensive Care Units of Süleyman Demirel University Hospital.Most of the MDR A.baumannii strains (50%) were isolated from the tracheal aspirate cultures. All of the isolates were found to be resistant to imipenem, meropenem, ticarcillin, cefepime, amikacin and ciprofloxacin by disc diffusion method. The lowest resistance rate was established for minocycline (44.2%). In all of the isolates (100%) the MIC values were within the resistance range for imipenem, meropenem, ampicillin/sulbactam and cefoperazone/sulbactam and susceptibility range for polymyxin B.The combination of meropenem with sulbactam showed synergy against 94.1% of MDR A.baumannii while the synergy rates for combinations of imipenem and sulbactam, imipenem and rifampin, imipenem and cefoperazon/sulbactam, imipenem and polymyxin B, meropenem and rifampin, meropenem and cefoperazon/sulbactam and meropenem and polymyxin B were 88.2%, 73.5%, 70.6%, 38.2%, 17.6%, 8.8% and 2.9%, respectively. Antagonism was not observed in any of the combinations. Hence, our findings about these synergistic combinations are of considerable interest and may provide a rationale for innovative and effective therapeutic options for infections caused by these MDR organisms.In conclusion, although favourable outcomes have been reported in several in vitro studies about the efficacy of antibiotic combinations used against MDR A.baumannii strains, further comprehensive studies with clinical evidence are warranted to confirm these data. 82
- Published
- 2011
173. Metisiline dirençli stafilokoklarda glikopepptid antibiyotiklere duyarlılık durumunun araştırılması
- Author
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Güneş, Hayati, Sesli Çetin, Emel, and Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı
- Subjects
Mikrobiyoloji ,Microbiology - Abstract
Stafilokoklar, hastane ve toplum kökenli infeksiyonların en önemli etkenlerindendir. Önceleri sadece S. aureus hastane infeksiyonu etkeni olarak kabul edilirken, günümüzde KNS'lerin önemi de artmaya başlamıştır.Çalışmamızda, hastanemiz Mikrobiyoloji ve Klinik Mikrobiyoloji Laboratuarı'na Nisan 2007-Nisan 2008 tarihleri arasında gönderilen çeşitli örneklerden izole edilen 60'ar adet MRSA, MSSA, MRKNS ve MSKNS suşu kullanılmıştır. Tüm bakteriler 4 ve 6 m?g/ml vankomisin içeren BHI agara ekilmiştir. MSSA grubu hakterilerden hiçbiri bu tarama agarlarda ürememiştir. 4 ?g/ml vankomisinli agarda MRSA'lardan 2, MRKNS'lerden 22, MSKNS'lerden ise 17 bakteri üremiştir. 6 ?g/ml vankomisinli agarda ise bunlardan 2 MSKNS ve 1 MRKNS dışındaki bakteriler üremiştir. Tüm bakterilerin mikrodilüsyon ve E test yöntemi ile vankomisin ve teikoplanin MİK değerleri belirlenmiştir. S. aureus'lardan tarama agarda 24. saatte üreyen 2 suş şüpheli VISA/h-VISA olarak kabul edilmiş ve bunların h-VISA oldukları PAP-AUC yöntemiyle doğrulanmıştır.Tarama agarda üreyen bakterilerin büyük bir çoğunluğunun KNS'lerden oluşması, bu bakterilerin hastane infeksiyonu etkeni olarak önemini bir kez daha ortaya koymuştur. VISA ve h-VISA suşları rutin disk difüzyon yöntemleriyle tespit edilememektedir. Bu bakterilerin tespiti için tarama agar ve PAP-AUC oranı gibi yöntemler gerekmektedir. Her ne kadar elimizdeVISA ve h-VISA infeksiyonlarından kaynaklanan artmış mortalite ile ilgili kontrollü klinik çalışma yoksa da; hekimler, MRSA infeksiyonlarının tedavisinde vakomisine yeterli cevabın alınamadığı durumların vankomisine karşı heterojen dirençten kaynaklanmış olabileceğini akılda tutmalıdırlar.Ülkemizde VISA ve h-VISA oranı tam olarak bilinmemektedir. Bunun tam olarak ortaya konması ve hastane infeksiyonu etkeni olarak bunların öneminin tam olarak belirlenmesi için daha fazla araştırma yapılması gerekmektedir.Anahtar Sözcükler: Stafilokok, glikopeptid duyarlılığı, VISA, h-VISA. Staphylococci are among the most important agents for hospital and community-acquired infections. While, S. aureus was accepted as the only agent for hospital-acquired infections in the past; nowadays, importance of CNS have begun to increase.In our study, a total of 240 strains (60 MRSA, 60 MSSA, 60 MRCNS and 60 MSCNS) isolated from various clinical specimens sent to our Microbiology and Clinical Microbiology Laboratory between April 2007-April 2008, were studied. All bacteria were inoculated on to Brain Heart Infusion agar supplemented with 4 ?g/ml and 6 ?g/ml vancomycin. None of MSSA have grown on these screen agar plates. Two of 60 MRSA, 22 of 60 MRCNS and 17 of 60 MSCNS isolates have grown on screen agar that icluded 4 ?g/ml vancomycin. On the other hand, all this bacteria except three strains (2 MSCNS and 1 MRCNS) have grown on screen agar that icluded 6 m?g/ml vancomycin. All bacteria?s vancomycin and teicoplanin MIC values were determined by microdilution and E-test methods. Two S. aureus isolates that grew on screen agar were accepted as possible VISA/h-VISA and these strains were confirmed as h-VISA by PAP-AUC method.The finding that most of the bacteria that grew on screen agar plates were CNS has emphasized the importance of these bacteria as hospital-acquired infection agents. VISA and h-VISA strains can not be detected by routine disc diffusion methods. Methods like screen agar and PAP-AUC ratio are needed for detecting them. Although there have been no data from controlled clinical studies which document the increased mortality from h-VISA and VISA infections, clinicians should bear in mind that an inadequate response to vancomycin in the treatment of MRSA infections could be due to heteroresistance to vancomycinThe prevalances of VISA and h-VISA are not clear enough in our country. More studies must be performed to clarify these rates and to determine the of importance these strains.Key Words: Staphylococcus, glycopeptide susceptibility, VISA, h-VISA. 59
- Published
- 2008
174. Süleyman Demirel Üniversitesi Tıp Fakültesi Hastanesinde izole edilen gram negatif nonfermenter bakterilerde metallo beta-laktamaz enzim aktivitesinin araştırılması
- Author
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Tetik, Tülay, Sesli Çetin, Emel, and Tıbbi Mikrobiyoloji Anabilim Dalı
- Subjects
Acinetobacter ,Mikrobiyoloji ,Pseudomonas ,Microbiology - Abstract
Çalışmamız Ocak 2007?Aralık 2007 tarihleri arasında Anabilim Dalı'mıza gönderilen çeşitli klinik örneklerden izole edilen 52 P. aeruginosa ve 61 A. baumanii olmak üzere toplam 113 bakteri kökeni ile yapılmıştır.Bakterilerin tanımlanması standart klinik mikrobiyolojik yöntemler ile yapılmış, bu yöntemlerle tanımlamanın yapılamadığı durumlarda BBL Crystal İdendification Systems (BD, USA) sistemleri kullanılmıştır. Bakterilerin invitro koşullarda antibiyotiklere direnç durumları CLSI önerileri doğrultusunda disk difüzyon yöntemi ile belirlenmiş, MBL üretimi kombine disk metodu, çift disk sinerji, modifıye Hodge testi ve E test yöntemleri ile araştırılmıştır.İmipenem dirençli Acinetobacter kökenlerinde MBL üretimi kombine disk metodu ile %75, IMP-EDTA çift disk sinerji testi ile 84, modifıye Hodge testi ile %74, E test ile %80; imipeneme dirençli Pseudomonas kökenlerinde kombine disk metodu ile %62, IMPEDTA çift disk sinerji testi ile %73 Modifiye Hodge testi ile %58 ve E test ile %40 oranında bulunmuştur.MBL üreten bakterilerin aztreonam dışında tüm beta laktamlara dirençli olmaları ve klinik uygulamada uygun bir MBL inhibitörünün bulunmaması, ayrıca MBL ile aminoglikozid direnç genlerinin genetik olarak birarada bulunması epidemiyolojik açıdan MBL varlığının tespit edilmesini çok önemlidir. MBL araştırılmasında hızlı, basit, duyarlılık ve özgüllüğü yüksek olan iyi bir fenotipik tarama yöntemine gerek vardır.Günümüzde var olan tarama yöntemlerinin hiçbiri yeterli değildir. Bu sebeple tarama sonuçlarının moleküler yöntemlerle doğrulanması gereklidir. Yaptığımız çalışma hastanemizde MBL üreten suşların belirlenmesi ve kontrolü ile ilgili olarak daha ileri araştırmaların yapılması gerektiğini düşündürmüştür.Anahtar sözcükler: MBL üretimi, Pseudomonas, Acinetobacter, fenotipik yöntemler. A total of 113 strains (52 Pseudomonas, 61 Acinetobacter), isolated from clinical specimens sent to our Microbiology and Clinical Microbiology laboratory betvveen the dates of January 2006?2007, were studied. The bacteria were identifıed by standart clinical microbiological tests, BBL Crystal İdendification Systems (BD, USA) .The invitro antimicrobial resistance of bacteria was determined by the disk diffusion method according to Clinical and Laboratory Standards Institute (CLSI) guideline. The MBL production was found using combined disk method, double disk synergy test, modified Hodge test and E test.Among imipenem resistant Acinetobacter strains, the MBL production determined by combined disc method was found as 75%. The MBL production vvas found as 84% by IPM-EDTA double disk synergy test, as 74% by modifıed Hodge test and as 80% by E test. in imipenem resistant Pseudomonas strains, the MBL production vvas found as 62% by combined disc method, as 73% by IPM-EDTA double disk synergy test, 58% by moditıed Hodge test and as 40% by E test.The determinination of the presence of MBL is very important in point of epidemiologic view because MBL producing bacteria are resistant to all beta lactams except aztreonam and also because the MBL and aminoglycosid resistance gene were present together genetically. Additionally there is not a MBL inhibitor for clinical treatment. There is a need of quick, easy fenotipic screening test with high specifıty and sensitivity.Today neither of the present screening methods are suffîcient. For this reason there is a need to confırm the screening results by molecular techniques. This study suggested the need for advanced studies for the determination and control of MBL producing strains in our hospital.Key words: MBL production, Pseudomonas, Acinetobacter, fenotipic methods 63
- Published
- 2008
175. Effect of Laurus nobilis on bacteria and human transforming growth factor-β1.
- Author
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Sancer O, Şahin U, Çetin ES, Tepebaşi MY, Cezaroğlu Y, Bilir G, Yünlü S, and Koca A
- Subjects
- Humans, Chromatography, High Pressure Liquid, Inhibitory Concentration 50, Klebsiella pneumoniae drug effects, Phenols pharmacology, Phenols analysis, Plant Leaves chemistry, Anti-Bacterial Agents pharmacology, Enterococcus faecalis drug effects, Laurus chemistry, Leukocytes, Mononuclear drug effects, Microbial Sensitivity Tests, Plant Extracts pharmacology, Staphylococcus aureus drug effects, Transforming Growth Factor beta1 drug effects, Transforming Growth Factor beta1 metabolism
- Abstract
Objective: In this study, we aimed to determine the phenolic compounds, the antibacterial activity of extract from Laurus nobilis leaves, and its possible effect on transforming growth factor-β1 expression level in peripheral blood mononuclear cells., Methods: The phenolic components of Laurus nobilis were identified by the high-performance liquid chromatography method. The antibacterial activity of this extract was determined by disk diffusion and broth microdilution methods. The transforming growth factor-β1 expression was analyzed using the RT-qPCR method., Results: Epicatechin was found in the highest amount and o-coumaric acid in the lowest amount. The half-maximal inhibitory concentration (IC50) was determined to be 55.17 μg/mL. The zones of inhibition and minimum inhibitory concentration for Staphylococcus aureus, Enterococcus faecalis, and Klebsiella pneumoniae were 15, 14, and 8 mm and 125, 250, and 1000 μg/mL, respectively. The change in transforming growth factor-β1 expression levels was found to be statistically significant compared with the control groups (p<0.0001)., Conclusion: Laurus nobilis extract was found to be effective against bacteria and altered the expression level of transforming growth factor-β1 in peripheral blood mononuclear cells.
- Published
- 2024
- Full Text
- View/download PDF
176. [Evaluation of In Vitro Efficacy of Ceftazidime-Avibactam, Meropenem, and Colistin Single and Binary Combinations Against Carbapenem Resistant Klebsiella pneumoniae Strains Isolated from Various Clinical Specimens].
- Author
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Köle M, Sesli Çetin E, Şirin MC, and Cicioğlu Arıdoğan B
- Subjects
- Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents therapeutic use, Azabicyclo Compounds, Carbapenems pharmacology, Ceftazidime, Drug Combinations, Humans, Meropenem pharmacology, Microbial Sensitivity Tests, Colistin pharmacology, Klebsiella pneumoniae
- Abstract
It has been reported that many antibiotics used today, including the carbapenem group, fail to treat Klebsiella pneumoniae infections effectively. Despite many studies in recent years, the definitive treatment for carbapenem-resistant Klebsiella pneumoniae (CRKP) infections is still uncertain. In this study, it was aimed to investigate in vitro activities of colistin (COL) and meropenem (MEM), which are frequently used in the treatment of CRKP infections, and ceftazidime-avibactam (CZA), which is recently used in our country, alone or in combination against different CRKP isolates having different carbapenem resistance mechanisms andto analyze whether the presence of colistin resistance, which is an important problem in CRKP strains, influences the drug interaction results. This study was carried out in 42 K.pneumoniae isolates, which were isolated from various clinical samples as an infectious agent in Süleyman Demirel University Faculty of Medicine, Department of Medical Microbiology, Bacteriology Laboratory and whose carbapenem resistance was confirmed by carbapenemase inactivation test. The carbapenemase genes of the isolates were determined by the polymerase chain reaction (PCR) method. Antimicrobial susceptibilities of CRKP strains to CZA, MEM, and COL were determined by the broth microdilution method and in vitro synergy activities of dual combinations of these drugs were evaluated by checkerboard and time-kill methods. Statistical evaluation of categorical data was performed using Fisher's exact test, and p-value of less than 0.05 was considered statistically significant in terms of difference between the groups. Of the 42 CRKP isolates 34 (81%) were only OXA-48 positive, 5 (11.9%) were OXA-48+NDM and 3 (7.1%) were OXA-48+KPC positive. In the checkerboard test, synergy was detected against 97.6% of the isolates both with CZA+MEM and CZA+COL combinations, whereas this rate was 50% with MEM+COL. In the time-kill test, synergy was detected with CZA+MEM and CZA+COL combinations in the OXA-48 positive isolate and OXA-48+KPC positive isolate, while synergy was detected with CZA+COL and MEM+COL combinations in the OXA-48+NDM positive isolate. There was no significant relationship between whether the isolates were resistant to colistin or not and the checkerboard test results of antibiotic combinations (pCZA+MEM= 0.33, pCZA+COL= 0.11, pMEM+COL= 0.61). Results of our study revealed that the most common carbapenemase type in CRKP isolates was OXA-48 in our hospital, and the combinations of CZA with MEM and COL had high potential for synergism against these isolates.
- Published
- 2022
- Full Text
- View/download PDF
177. Investigation of acute effects of topical Alpinia officinarum (galangal) treatment in experimental contact type burns and comparison with topical silver sulfadiazine treatment.
- Author
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Kadam K, Kıyan S, Uyanıkgil Y, Karabey F, and Çetin EÖ
- Subjects
- Administration, Topical, Animals, Rats, Silver Sulfadiazine pharmacology, Silver Sulfadiazine therapeutic use, Wound Healing, Alpinia, Anti-Infective Agents, Local therapeutic use, Burns drug therapy
- Abstract
Background: It was aimed to determine whether Alpinia officinarum (AO) (galangal), which has been regarded to be effective on wound healing, is healing on experimental contact type burns and compare its effects with silver sulfadiazine (SSD)., Methods: Thirty-five rats were divided into five groups of seven rats each group. Superficial second degree burns were formed by contacting a 1×1 cm copper tip which was kept at 100°C constant temperature to the three shaved areas on the back of rats without applying any pressure for 10 s. All groups were irrigated with a 100 cc saline solution for 2 min. Any procedure or treatment was not applied to Group I (Control). Group II (Burn Control) was only irrigated, Group III (SSD) was applied topical SSD 4 times, with 6-h intervals (at h 0, 6, 12 and 18), Group IV (Galangal) was applied topical AO 4 times, and Group V (Gel) was applied placebo topical material, used for the preparation of topical AO, 4 times. Wound healing findings were evaluated histopathologically., Results: In the galangal group, it was found that collagen discoloration didn't penetrate into deep dermis compared to other groups; epidermis, hair follicles, and sebaceous glands remained protected compared to the burn control group, and there was a thicker layer of epidermis. It was found that the galangal group was the closest group to the control group histologically. In the galangal group, it was determined that the number of vessels and total hair follicles were significantly higher in the 8th h and 4th h respectively (p<0.05), while epidermal thickness and number of degenerated hair follicles were significantly higher in all hours compared to other three groups (p<0.05). It was determined that galangal group had the lowest scores in the evaluation of edema, polymorphonuclear leukocytes infiltration, collagen discoloration, injury of vessels, hair follicles and sebaceous glands in comparisons between groups and within groups' own processes., Conclusion: Administrating AO containing gel 4 times a day within the first 24 h is effective in the experimental contact type second degree burn model. It is significantly superior to SSD treatment, especially in the first 8 h of administration.
- Published
- 2022
- Full Text
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178. An Investigation into the Association Between Toxoplasma gondii Infection and Bipolar Disorder
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Şirin MC, Kılıç F, Demirdaş A, Arıdoğan B, and Sesli Çetin E
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- Antibodies, Protozoan, Humans, Immunoglobulin M, Risk Factors, Seroepidemiologic Studies, Bipolar Disorder complications, Bipolar Disorder epidemiology, Toxoplasma, Toxoplasmosis complications, Toxoplasmosis epidemiology
- Abstract
Objective: Studies have implicated Toxoplasma gondii in the etiology of mental disorders because of its neurotropic nature and its ability to modulate neurotransmitter pathways. This study aims to investigate T. gondii seroprevalence in patients with bipolar disorder and in healthy controls living in the Isparta Region of Turkey and to assess the probable relationship between T. gondii and bipolar disorder., Methods: Fourty-eight patients with bipolar disorder and 50 healthy controls were included in the study. Sociodemographic data, possible risk factors for T. gondii infection and clinical characteristics were analyzed. Serum anti- T. gondii IgM and IgG antibody levels were measured by using chemiluminescence immunoassay method (Roche Cobas e601 analyzer, Roche Diagnostics, Mannheim, Germany)., Results: Anti- T. gondii IgG seropositivity rates were determined as 18.8% and 20% in the patient group and the control group, respectively. No statistically significant relationship was observed between T. gondii IgG seropositivity and bipolar disorder (p=0.876). In the study population, advanced age, low education level, living in a rural region and consumption of unwashed raw vegetable or fruit were found to be the significant risk factors for T. gondii infection (p<0.05)., Conclusion: Our preliminary findings do not support the hypothesis that T. gondii infection is related to bipolar disorder. However, further studies would require larger sample sizes to confirm our results.
- Published
- 2021
- Full Text
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179. Primary Cutaneous Angiosarcoma of the Scalp with Cranial Invasion in a Patient with Metastatic Breast Cancer.
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Yıldırım S, Erdemoğlu Y, Öztürk Durmaz E, Erfan G, Duman D, and Dikicioğlu Çetin E
- Abstract
Idiopathic cutaneous angiosarcoma (CA) of the head and neck is a distinct subtype of angiosarcoma most commonly presenting as a single or multiple purple, bruise-like patches that arise de novo and enlarge over several months. In clinical practice, both misdiagnosis and delayed diagnosis are frequently encountered. Here, we present a case of idiopathic CA on the scalp with invasion to the cranium in a patient with breast cancer metastatic to the brain. The patient was initially misdiagnosed and mistreated with herpes zoster and breast cancer metastatic to the skin, which led to a delayed diagnosis by two months until dermatologic evaluation. The diagnosis was then firmly established as CA based on consistent clinical and histological features. Since the tumor was inoperable, radiotherapy and chemotherapy were been considered as the appropriate adjuvant modes of therapy. Despite an initial favorable response, the disease demonstrated a rapidly progressive course and the patient succumbed to the disease within six months. This report briefly reviews the clinical and histological portrait and management options for this aggressive tumor., Competing Interests: DISCLOSURES: The authors report no conflicts of interest relevant to the content of this article., (Copyright © 2021. Matrix Medical Communications. All rights reserved.)
- Published
- 2021
180. The healing effects of Hyperium perforatum (St. John's Wort) on experimental alkaline corrosive eosephageal and stomach burns.
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Güvenç E, Kıyan S, Uyanıkgil Y, Çetin EÖ, Karabey F, Çavuşoğlu T, and Gökçe B
- Subjects
- Animals, Cell Line, Cell Survival drug effects, Disease Models, Animal, Fibroblasts drug effects, Humans, Rats, Burns, Chemical drug therapy, Burns, Chemical pathology, Caustics adverse effects, Hypericum, Plant Extracts pharmacology, Upper Gastrointestinal Tract drug effects, Upper Gastrointestinal Tract injuries
- Abstract
Background: The most frequent etiologic cause is alkaline substances. We investigated the protective effects of the plant St. John 's Wort (Hypericum perforatum)., Methods: We included 42 Wistar albino rats weighing between 200-300 grams and divided into six groups as Group 1: Control, Group 2: Burn+Saline (BS), Group 3: Burn+St. John's Wort (BSJW), Group 4: Burn+Plasebo (BP), Group 5: St. John's Wort (SJW), Group 6: Placebo (P). After 15 days of treatment, esophagus, stomach and liver tissue samples were derived by dissection for histopathologic and biochemical markers. The cytotoxic effects of formulation on fibroblasts is evaluated in vitro on human dermoblast fibroblast line (HDFa, Gibco Invitrogen cell culture, C-013-5C)., Results: The weight of the rats increased in Group 1, 3, 4, 6, decreased in Group 2 and did not change in Group 5. In the BSJW group, submucosal collagen accumulation, muscularis mucosa damage, tunica muscularis damage and collagen accumulation in esophagus were similar to the control group but lesser than BS and placebo group. In the stomach, mucosal damage, gastric gland dilatation, submucosal polymorphonuclear infiltration were similar to the control group and lesser than the BS group. The lethal concentration of SJW was 2.58 gr/mL., Conclusion: SJW substrate is effective in protecting the esophagus and stomach in mild to moderate alcali corrosive burns in the subacute period. We should keep in mind the protective effects of STW substrate in alkaline corrosive burns of the gastrointestinal system.
- Published
- 2020
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181. Strahlentherapie bei Brustkrebs löst kutanen Lupus erythematodes aus.
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Öztürk Durmaz E, Atalar B, Sezer E, Özyar E, and Dikicioǧlu Çetin E
- Published
- 2019
- Full Text
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182. Cutaneous lupus erythematosus induced by radiotherapy for breast carcinoma.
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Durmaz EÖ, Atalar B, Sezer E, Özyar E, and Çetin ED
- Subjects
- Adult, Breast radiation effects, Breast Diseases drug therapy, Breast Neoplasms therapy, Carcinoma, Ductal, Breast therapy, Combined Modality Therapy, Female, Humans, Hydroxychloroquine therapeutic use, Lupus Erythematosus, Cutaneous drug therapy, Breast Diseases etiology, Breast Neoplasms radiotherapy, Carcinoma, Ductal, Breast radiotherapy, Lupus Erythematosus, Cutaneous etiology
- Published
- 2019
- Full Text
- View/download PDF
183. Circumscribed acral hypokeratosis: a report of 2 cases and a brief review of the literature.
- Author
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Erkek E, Çetin ED, Sezer E, and Sahin S
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Male, Epidermis pathology, Hand Dermatoses pathology
- Abstract
Circumscribed acral hypokeratosis (CAH) is characterized by solitary or multiple circular, depressed, slightly erythematous patches on the palms or soles. Keratinization defects on acral sites or prior trauma to the affected area have been considered as potential triggers of CAH. Although affected patients typically present with a long-term history of the disease and characteristic cutaneous lesions, CAH is not well known by dermatologists. In this article, we describe 2 patients with CAH. From a clinical point of view, we emphasize its unique cutaneous expression, and from a histologic perspective, we speculate on protracted or repetitive blunt trauma in the elicitation of this dermatosis, perhaps only in patients with a genetic predisposition.
- Published
- 2014
184. Onychomatricoma masquerading as candidal onychomycosis and paronychia.
- Author
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Oztürk Durmaz E, Sezer E, Dikicioğlu Çetin E, and Sahin S
- Subjects
- Aged, Dermoscopy, Diagnosis, Differential, Female, Humans, Nail Diseases surgery, Neoplasms, Fibroepithelial surgery, Onychomycosis microbiology, Skin Neoplasms surgery, Nail Diseases diagnosis, Neoplasms, Fibroepithelial diagnosis, Onychomycosis diagnosis, Paronychia diagnosis, Skin Neoplasms diagnosis
- Abstract
Onychomatricoma is a benign slow-growing fibroepithelial tumor arising from the nail matrix. The tumor was described as a new entity almost two decades ago. Although the clinical appearance is typical, most cases are probably misdiagnosed by physicians because of unfamiliarity with the condition. Herein we describe a case of onychomatricoma masquerading as candidal onychomycosis and paronychia and treated erroneously as such.
- Published
- 2013
185. [Do different interpretative methods used for evaluation of checkerboard synergy test affect the results?].
- Author
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Ozseven AG, Sesli Çetin E, and Ozseven L
- Subjects
- Acinetobacter Infections drug therapy, Acinetobacter Infections microbiology, Ampicillin pharmacology, Bacterial Infections microbiology, Cross Infection drug therapy, Cross Infection microbiology, Drug Synergism, Drug Therapy, Combination, Humans, Imipenem pharmacology, Meropenem, Microbial Sensitivity Tests methods, Sulbactam pharmacology, Thienamycins pharmacology, Acinetobacter baumannii drug effects, Anti-Bacterial Agents pharmacology, Bacterial Infections drug therapy, Drug Resistance, Multiple, Bacterial, Microbial Sensitivity Tests standards
- Abstract
In recent years, owing to the presence of multi-drug resistant nosocomial bacteria, combination therapies are more frequently applied. Thus there is more need to investigate the in vitro activity of drug combinations against multi-drug resistant bacteria. Checkerboard synergy testing is among the most widely used standard technique to determine the activity of antibiotic combinations. It is based on microdilution susceptibility testing of antibiotic combinations. Although this test has a standardised procedure, there are many different methods for interpreting the results. In many previous studies carried out with multi-drug resistant bacteria, different rates of synergy have been reported with various antibiotic combinations using checkerboard technique. These differences might be attributed to the different features of the strains. However, different synergy rates detected by checkerboard method have also been reported in other studies using the same drug combinations and same types of bacteria. It was thought that these differences in synergy rates might be due to the different methods of interpretation of synergy test results. In recent years, multi-drug resistant Acinetobacter baumannii has been the most commonly encountered nosocomial pathogen especially in intensive-care units. For this reason, multidrug resistant A.baumannii has been the subject of a considerable amount of research about antimicrobial combinations. In the present study, the in vitro activities of frequently preferred combinations in A.baumannii infections like imipenem plus ampicillin/sulbactam, and meropenem plus ampicillin/sulbactam were tested by checkerboard synergy method against 34 multi-drug resistant A.baumannii isolates. Minimum inhibitory concentration (MIC) values for imipenem, meropenem and ampicillin/sulbactam were determined by the broth microdilution method. Subsequently the activity of two different combinations were tested in the dilution range of 4 x MIC and 0.03 x MIC in 96-well checkerboard plates. The results were obtained separately using the four different interpretation methods frequently preferred by researchers. Thus, it was aimed to detect to what extent the rates of synergistic, indifferent and antagonistic interactions were affected by different interpretation methods. The differences between the interpretation methods were tested by chi-square analysis for each combination used. Statistically significant differences were detected between the four different interpretation methods for the determination of synergistic and indifferent interactions (p< 0.0001). Highest rates of synergy were observed with both combinations by the method that used the lowest fractional inhibitory concentration index of all the non-turbid wells along the turbidity/non-turbidity interface. There was no statistically significant difference between the four methods for the detection of antagonism (p> 0.05). In conclusion although there is a standard procedure for checkerboard synergy testing it fails to exhibit standard results owing to different methods of interpretation of the results. Thus, there is a need to standardise the interpretation method for checkerboard synergy testing. To determine the most appropriate method of interpretation further studies investigating the clinical benefits of synergic combinations and additionally comparing the consistency of the results obtained from the other standard combination tests like time-kill studies, are required.
- Published
- 2012
186. Plasmacytoid dendritic cell tumor: A case report.
- Author
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Kacar Döger F, Dikicioğlu Çetin E, Hekimgil M, Özdoğan Uslu M, Kadıköylü G, Özsan N, Şavk E, and Bolaman Z
- Abstract
A 62-year-old man presented with a painless eruption on his arms and trunk. Physical examination showed 2 well-demarcated erythematous plaques on the anterior trunk and 6 purple-red papules on the back and upper extremities. Blood chemistry and computed tomography results were normal. Herein we describe a patient with plasmacytoid dendritic cell neoplasm in the absence of systemic symptoms.
- Published
- 2011
- Full Text
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