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Er E, Vahabi A, Kaya Biçer E, Yılmaz Ö, Aydoğdu S. Use of polyglycolic acid-hyaluronic acid/β-tricalcium phosphate scaffold with or without mesenchymal stem cells found ineffective in treating osteochondral lesions in rabbit knees. Acta Orthop Traumatol Turc 2023; 57:209-214. [PMID: 37828858 PMCID: PMC10724785 DOI: 10.5152/j.aott.2023.23054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023]
Abstract
OBJECTIVE In this experimental animal study, a novel bilayered scaffold used in the treatment of osteochondral defects in rabbit knees was evaluated. This novel scaffold's upper (cartilage) layer consists of polyglycolic acid and hyaluronic acid, and the lower (bone) layer consists of β-tricalcium phosphate. The purpose of this study was to evaluate the efficacy of this novel scaffold, combined with or without mesenchymal stem cells (MSCs), in the treatment of osteochondral defects in rabbit knees. METHODS Osteochondral defects were created in the left femoral trochlea of 30 rabbits. In group A, defects were treated with scaffold combined with MSCs; in group B, defects were treated with cell-free scaffolds; and group C was a control group with defects left untreated. In the 12th week, animals were sacrificed for macroscopic evaluation. RESULTS The mean International Cartilage Repair Society (ICRS) macroscopic scores were 4.95 for group A, 6.16 for group B, and 8.25 for group C. The mean Oswestry Arthroscopic Scores (OAS) were 1.65 for group A, 3.39 for group B, and 6.05 for group C. The macroscopic scores were significantly higher in group C than group A for ICRS scores and group A and group B for OAS (P < .001, P < .000, P < .022). CONCLUSION In essence, our findings indicate that the newly developed osteochondral scaffold, when tested in a rabbit model, is not as effective as expected in repairing full-thickness osteochondral defects, with or without the supplementation of MSCs. Further investigation is required to enhance the effectiveness of this novel combination.
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Affiliation(s)
- Erdem Er
- Department of Orthopedics and Traumatology, Ege University School of Medicine, İzmir, Turkey
| | - Arman Vahabi
- Department of Orthopedics and Traumatology, Ege University School of Medicine, İzmir, Turkey
| | - Elcil Kaya Biçer
- Department of Orthopedics and Traumatology, Ege University School of Medicine, İzmir, Turkey
| | - Özlem Yılmaz
- Department of Histology and Embryology, Ege University School of Medicine, İzmir, Turkey
| | - Semih Aydoğdu
- Department of Orthopedics and Traumatology, Ege University School of Medicine, İzmir, Turkey
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Kanmaz S, Yılmaz S, Toprak DE, Atas Y, İnce T, Şimşek E, Dokurel İ, Ölçülü CB, Yılmaz Ö, Şen G, Hükmen MK, Serin HM, Aktan G, Gökben S, Tekgül H. Assessment of Prognostic Factors and Validity of Scoring Models in Childhood Autoimmune Encephalitis. Turk Arch Pediatr 2023; 58:142-153. [PMID: 36856351 PMCID: PMC10081125 DOI: 10.5152/turkarchpediatr.2023.22198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE The aim of this study is to evaluate the prognostic factors in a single-center pediatric cohort with autoimmune encephalitis. MATERIALS AND METHODS The study group consisted of 23 pediatric autoimmune encephalitis patients (seropositive autoimmune encephalitis: 15, seronegative autoimmune encephalitis: 8). Five group prognostic parameters were evaluated: clinical manifestations, elect roenc ephal ograp hy features, magnetic resonance imaging characteristics, biomarkers, and treatment modalities. Three scoring models were applied: the Antibody Prevalence in Epilepsy and Response to Immunotherapy in Epilepsy for predicting autoimmune-related epilepsy in the whole cohort and the anti-N-methyl-d-aspartate receptor Encephalitis 1-Year Functional Status score for overall outcome in patients with anti-N-methyl-d-aspartate receptor encephalitis. RESULTS The initial clinical spectrum of the disease was similar in the seronegative and seropositive groups. Almost half of the patients (48%) recovered without any complications with first-line immunotherapy. The patients with movement disorders in the acute phase of the disease needed more likely second-line immunotherapy (P = .039). The presence of status epilepticus at admission was significantly associated with adverse outcomes and the development of autoimmune-related epilepsy (P = .019). Autoimmune-related epilepsy was defined in an equal proportion of patients (91.5%) with 2 immune epilepsy scores (Antibody Prevalence in Epilepsy and Response to Immunotherapy in Epilepsy). The N-methyl-d-aspartate receptor Encephalitis 1-Year Functional Status score and the modified Rankin score assessed for the first-year prognosis were strongly correlated among the patients with anti-N-methyl-d-aspartate receptor encephalitis (P = .03, Spearmen's rho = 0.751). CONCLUSIONS The presence of status epilepticus was the most important prognostic factor in the patients with the adverse outcome. The studied scoring models (Anti-N-methyl-d-aspartate receptor Encephalitis 1-Year Functional Status, Antibody Prevalence in Epilepsy, and Response to Immunotherapy in Epilepsy) have also been proven to be applicable to the pediatric age group for predicting overall outcome and autoimmune-related epilepsy.
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Affiliation(s)
- Seda Kanmaz
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Sanem Yılmaz
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Dilara Ece Toprak
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Yavuz Atas
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Tuğçe İnce
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Erdem Şimşek
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - İpek Dokurel
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Cemile Büşra Ölçülü
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Özlem Yılmaz
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Gürsel Şen
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Mustafa Kaan Hükmen
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Hepsen Mine Serin
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Gül Aktan
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Sarenur Gökben
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Hasan Tekgül
- Division of Pediatrics, Department of Child Neurology, Ege University Faculty of Medicine, İzmir, Turkey
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Kanmaz S, Ataş Y, Toprak DE, Hoşcoşkun E, Ölçülü CB, İnce T, Yılmaz Ö, Şen G, Yılmaz S, Tekgül H. The Prophylaxis of Febrile Convulsions in Childhood: Secular Trends in the Last Decade (2007-2008 versus 2017-2018). jpr 2023. [DOI: 10.4274/jpr.galenos.2022.87847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Balkan T, Yılmaz Ö. Efficacy of some washing solutions for removal of pesticide residues in lettuce. Beni-Suef Univ J Basic Appl Sci 2022. [DOI: 10.1186/s43088-022-00324-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Abstract
Background
When previous studies were examined, it was reported that a wide variety of pesticide residues were detected in lettuce (Bakırcı et al. in Food Chem 160:379–392, 2014; Balkan and Yılmaz in Food Chem 384:132516, 2022; Qin et al. in Food Res Int 72:161–167, 2015; Selim et al. in Res J Environ Sci 5:248–258, 2011). In addition, pesticide-contaminated lettuce poses a risk to consumers as it is a fresh food that is eaten raw. Therefore, pesticide removal processes must be applied before consumption. Some pesticide removal process, such as storage and heat treatment cannot be applied to lettuce because of unshelled, no long shelf life and consuming as fresh. Different practical methods are needed for the removal of pesticides process. The recommendations of suitable methods for cleaning salad materials in ready-to-eat sector, hotels, restaurants and homes are very important. It is important to reduce pesticide residues in vegetables and fruits that are consumed raw by washing them with non-toxic solutions. These approaches aim to protect public health. The study conducted in 2021 determined the effect of various washing treatments. For this purpose, before the washing trials, QuEChERS method was validated for determination of 7 pesticides in lettuce, by liquid chromatography–tandem mass spectrometry (LC–MS/MS). Lettuce plants were grown in the greenhouse for the study. Lettuces were brought to the laboratory 24 h after pesticides were applied in the greenhouse. The samples were kept in 2 L washing solution for pesticide analysis.
Results
The processing factor values of all washing applications were found below 1. This result shows that the residue level was reduced by washing solutions. Among the washing solution treatments, the rice vinegar washing solution was found to be most effective in reducing the pesticide residues which was due to the high degree in the pesticide degradation. Washing with filtered rice water also exhibited equivalent reduction capability similar to rice vinegar.
Conclusions
The effectiveness of washing solutions was different for boscalid, deltamethrin, fluopcolide, fluopyram, pyrimethanil, pyraclostrobin and sulfoxaflor. However, when the average removal of these pesticides was evaluated, the most effective solutions were rice vinegar, filtered rice water, carbonated water, NaCl + grape vinegar, hot tap water (40 °C), grape vinegar (6% acetic acid), grape vinegar + water, cold tap water (20 °C), lemon juice, baking soda water, grape vinegar (8% acetic acid), filtered mint water and grape vinegar (4% acetic acid), respectively. It was concluded that some of the solutions used in this study can significantly reduce exposure to pesticides for consumers.
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Balkan T, Yılmaz Ö. Method validation, residue and risk assessment of 260 pesticides in some leafy vegetables using liquid chromatography coupled to tandem mass spectrometry. Food Chem 2022; 384:132516. [DOI: 10.1016/j.foodchem.2022.132516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 11/04/2022]
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Kamaşak T, Serdaroğlu E, Yılmaz Ö, Kılıç BA, Polat BG, Erdoğan I, Yücel Şen A, Özen N, Durgut BD, Nihal Yıldız P, Kart Ö, Dilber B, Arslan EA, Şahin S, Topçu Y, Gencpinar P, Serin HM, Hız SA, Çarman KB, Dündar NO, Okuyaz Ç, Aydın K, Serdaroğlu A, Tekgül H, Cansu A. THE EFFECTIVENESS AND TOLERABILITY OF CLOBAZAM IN THE PEDIATRIC POPULATION: ADJUNCTIVE THERAPY AND MONOTHERAPY IN A LARGE-COHORT MULTICENTER STUDY. Epilepsy Res 2022; 184:106963. [DOI: 10.1016/j.eplepsyres.2022.106963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/10/2022] [Accepted: 06/01/2022] [Indexed: 11/03/2022]
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Canatan D, Yılmaz Ö, Sönmez Y, Çim A, Baykara M, Savaş M, Coşkun HŞ, Göksu SS, Aktekin MR. Use of MicroRNAs as biomarkers in the early diagnosis of prostate cancer. Acta Biomed 2022; 93:e2022089. [PMID: 35775783 PMCID: PMC9335414 DOI: 10.23750/abm.v93i3.11642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Prostate cancer (PCa) is a common type of cancer in western countries and prominent cause of mortality in men. The aim of the study was to analyze circulating miRNAs as biomarkers in the sera of healthy individuals and prostate cancer cases without biopsy. MATERIAL AND METHODS Twenty prostate cases, age (mean and range) 61,4±12.1 (45-73), and twenty healthy men, age 59,3±11.2 (44-70) were included to the study. The mean and range of prostate spesific antigen (PSA) in cancer cases and healthy individuals were 6.79±2.84 ng/ml (2.25-14.7) and 3.8±2.2 ng/ml (1.3-7.8) respectively. RESULTS Seven miRNAs including two internal controls (Let7c, miR125b, miR141, miR145, miR 155, miR181 ve miR192) were evaluated in two groups. The level of miR141 was significantly lower in PCa cases than healthy individuals (p=0,004), and miR155 was significantly higher (p=0,005) in PCa cases. Both miRNAs were explored sensitive and spesific in the ROC analysis. Tumor mass were found to be associated with the level of miR-125b and miR-145. Conclusion; validation studies are required in wider patient groups in the subject of tumor effect and miRNA biomarkers in prostate cancer.
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Affiliation(s)
- Duran Canatan
- Antalya Genetic Diseases Center, Antalya, Turkey, Vocational School of Health Services of Antalya Bilim University -Antalya Turkey
| | - Özlem Yılmaz
- Akdeniz University, Deparment of Genetics, Antalya, Turkey
| | - Yonca Sönmez
- Akdeniz University, Faculty of Medicine, Deparment of Public Health, Antalya, Turkey; Lara Anadolu Hospital, Department of Urology, Antalya, Turkey
| | - Abdullah Çim
- Antalya Genetic Diseases Center, Antalya, Turkey
| | - Mehmet Baykara
- Memorial Hospital, Department of Urology, Antalya, Turkey
| | - Murat Savaş
- Akdeniz University, Medical Faculty, Department of Medical Oncology, Antalya, Turkey
| | - Hasan Şenol Coşkun
- Vocational School of Health Services of Antalya Bilim University -Antalya Turkey
| | - Sema Sezgin Göksu
- Vocational School of Health Services of Antalya Bilim University -Antalya Turkey
| | - Mehmet Rıfkı Aktekin
- Akdeniz University, Faculty of Medicine, Deparment of Public Health, Antalya, Turkey; Lara Anadolu Hospital, Department of Urology, Antalya, Turkey
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Turan C, Gökçe Basa E, Elitez D, Yılmaz Ö, Gümüş E, Anıl M. The Comparison of Children Who Were Diagnosed with COVID-19 in the First and the Second Waves of the SARS-CoV-2 Pandemic. Turk Arch Pediatr 2021; 56:596-601. [PMID: 35110059 PMCID: PMC8848766 DOI: 10.5152/turkarchpediatr.2021.21162] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objective: To compare the clinical and laboratory findings and short-term outcomes of those children diagnosed with COVID-19 in the first and second waves of the SARS-CoV-2 pandemic. Methods: A retrospective study was conducted at a suburban community hospital during a 1-year period. All children who were less than 18 years of age and confirmed with COVID-19 were included in the study population. The demographics, clinical features, laboratories, treatments given, hospitalizations, and outcomes were analyzed. Results: A total of 198 patients were enrolled; median age was 9.3 years. One-hundred four patients were diagnosed with COVID-19 disease in the first wave and 94 (47.5%) patients were diagnosed in the second wave of the pandemic. Those patients who were diagnosed with COVID-19 in the first wave of the pandemic were significantly younger than those in the second wave (medians: 2.7 years vs. 15 years respectively, P < .001). Intra-familial contact was detected in 66.4% vs. 33.6% in the first and second waves of the pandemic, respectively (P < .001). Asymptomatic patients were higher in the second wave than in the first wave (P < .001). Additionally, moderate-to-critically ill patients were significantly higher in the first wave than in the second wave (P < .001). The rate of multisystem inflammatory syndrome (MIS-C) cases was 0.32% in this study. Conclusion: In children, COVID-19 disease affected older children, there was less intra-familial contact and the severity of the disease was milder in the second wave of the pandemic in comparison to the first wave. MIS-C was encountered in the second wave of the pandemic.
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Affiliation(s)
- Caner Turan
- Division of Pediatric Emergency, Department of Pediatrics, Izmir Democracy University Medical Faculty, Buca Seyfi Demirsoy Teaching and Research Hospital, Izmir, Turkey
- Corresponding author:Caner Turan✉
| | - Elif Gökçe Basa
- Department of Pediatrics, Izmir Democracy University Medical Faculty, Buca Seyfi Demirsoy Teaching and Research Hospital, Izmir, Turkey
| | - Duygu Elitez
- Division of Pediatric Neurology, Department of Pediatrics, Dokuz Eylul University School of Medicine, Izmir, Turkey
| | - Özlem Yılmaz
- Division of Pediatric Neurology, Department of Pediatrics, Ege University School of Medicine, Izmir, Turkey
| | - Ece Gümüş
- Department of Pediatrics, Izmir Democracy University Medical Faculty, Buca Seyfi Demirsoy Teaching and Research Hospital, Izmir, Turkey
| | - Murat Anıl
- Division of Pediatric Emergency, Department of Pediatrics, Izmir Democracy University Medical Faculty, Buca Seyfi Demirsoy Teaching and Research Hospital, Izmir, Turkey
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Gökçekuyu BM, Yılmaz Ö, Soytürk M, Ellidokuz H, Akpınar H, Şimşek İ. Unacceptable Antibiotic Resistance Rates for Helicobacter pylori in Turkey: Something Must Change. Turk J Gastroenterol 2021; 32:269-275. [PMID: 34160356 DOI: 10.5152/tjg.2021.20210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND It is known that clarithromycin resistance has increased over the years (success rate 60%). The aim of the study was to investigate the importance of regional antimicrobial resistance rates for full accuracy of both diagnosis and treatment of Helicobacter pylori infection. METHODS This study was carried out in the University Hospital Department of Gastroenterology. A total of 116 patients were evaluated with upper gastrointestinal endoscopy. Gastric antrum and corpus biopsy samples were taken for the rapid urease test (RUT), culture, and antimicrobial susceptibility testing for the presence of H. pylori. Antimicrobial susceptibilities of isolated H. pylori strains for clarithromycin and levofloxacin were determined by the epsilometer test (E-test). Minimal inhibitory concentration values for clarithromycin and levofloxacin were ≥1 and >1 μg/mL, respectively. RESULTS H. pylori infection was considered clinically positive in 93 (80.2%) patients with either the RUT, culture, or histopathological examination. Seventy (60.3%) of the patients had RUT positivity. Sixty (85.7%) of these 70 patients had RUT positivity within the first 20 min. Among the 90 patients, who had a histopathological examination, HLO was positive in 76 (84.4%) patients. Fifty-two (44.8%) out of 116 patients were culture positive. Resistance rates for both clarithromycin and levofloxacin were high. In these 52 culture-positive patients, resistance rates determined for clarithromycin and levofloxacin were 26.9% and 25.5%, respectively. CONCLUSION Clarithromycin or levofloxacin-based treatment regimen may not be an ideal alternative therapy for Turkish patients regardless of culture.
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Affiliation(s)
- Bilge Müge Gökçekuyu
- Division of Geriatrics, Department of Internal Medicine, Erciyes University School of Medicine, Kayseri, Turkey;Department of Internal Medicine, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Özlem Yılmaz
- Deparment of Medical Microbiology, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Müjde Soytürk
- Division of Gastroenterology, Department of Internal Medicine, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Hülya Ellidokuz
- Institute of Oncology, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Hale Akpınar
- Division of Gastroenterology, Department of Internal Medicine, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - İlkay Şimşek
- Division of Gastroenterology, Department of Internal Medicine, Dokuz Eylül University School of Medicine, İzmir, Turkey
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Canatan D, Sönmez Y, Yılmaz Ö, Çim A, Coşkun HŞ, Sezgin Göksu S, Ucar S, Aktekin MR. MicroRNAs as biomarkers for breast cancer. Acta Biomed 2021; 92:e2021028. [PMID: 33988168 PMCID: PMC8182592 DOI: 10.23750/abm.v92i2.9678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022]
Abstract
Breast cancer is the most common type of cancer among women and the most frequent cause of death due to cancer among women. The lack of standard biomarkers in the early diagnosis of breast cancer, microRNAs (miRNA) have been of interest recently. Although, miRNAs are 19-24 nucleotide-long non-coding RNA species, they have crucial roles in many areas from organogenesis to carcinogenesis. This study has been conducted to investigate miR 21, miR 27b, miR 125a, miR 155, miR 200c, miR 335 miR373 as biomarkers in the early diagnosis of breast cancer; a selection based on the literature. Two miRNAs, miR 181 and miR 192 were selected as the endogenous control. MiRNAs were obtained from 5 cc blood samples taken from 20 breast cancer patients and 20 healthy people. 10 microRNAs were studied using Real Time PCR method. As a result, the quantities of miR 21, miR155 and miR125 were significantly higher in the breast cancer group than in healthy controls. We suggest that performing validation studies in wider populations can help the use of miRNAs as biomarkers in the early diagnosis of breast cancer.
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Affiliation(s)
- Duran Canatan
- Antalya Genetic Diseases Diagnosis Center - Antalya- Turkey.
| | - Yonca Sönmez
- Akdeniz University, Faculty of Medicine, Department of Public Health - Antalya- Turkey.
| | - Özlem Yılmaz
- Antalya Genetic Diseases Diagnosis Center - Antalya- Turkey.
| | - Abdullah Çim
- Antalya Genetic Diseases Diagnosis Center - Antalya- Turkey.
| | - Hasan Şenol Coşkun
- Akdeniz University, Faculty of Medicine, Department of Medical Oncology- Antalya- Turkey.
| | - Sema Sezgin Göksu
- Akdeniz University, Faculty of Medicine, Department of Medical Oncology- Antalya- Turkey.
| | - Selda Ucar
- Akdeniz University, Faculty of Medicine, Department of Medical Oncology- Antalya- Turkey.
| | - Mehmet Rıfkı Aktekin
- Akdeniz University, Faculty of Medicine, Department of Public Health - Antalya- Turkey.
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Yılmaz Ö. Synthesis of New Secondary Amines and Their In Situ Catalytic Activity in Transfer Hydrogenation of Ketones and Antioxidant Properties. Russ J Org Chem 2021. [DOI: 10.1134/s1070428021040175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Öcek Z, Batı H, Sezer ED, Köroğlu ÖA, Yılmaz Ö, Yılmaz ND, Mandıracıoğlu A. Research training program in a Turkish medical school: challenges, barriers and opportunities from the perspectives of the students and faculty members. BMC Med Educ 2021; 21:2. [PMID: 33397360 PMCID: PMC7780673 DOI: 10.1186/s12909-020-02454-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 12/11/2020] [Indexed: 05/29/2023]
Abstract
BACKGROUND Providing medical students with opportunities for research experience is challenging for medical schools in developing countries. The Research Training Program (RTP), which is carried out in Ege University Faculty of Medicine (EUFM) parallel to the core curriculum, aims to improve the scientific competencies of the highly motivated students and to provide them with the opportunity to conduct a research. The purpose of this project is to evaluate RTP through the perspectives of students and faculty members. METHODS This phenomenological study included two groups; students of RTP and faculty members who contributed to the program. Interviews were conducted with the research group whose selection was determined by maximum variation technique. Interviews with new individuals continued until data saturation was reached. Interpretative data analysis started with close reading of the transcripts and generating a list of codes. Coding by two independently, developing categories and themes were the following steps. RESULTS Twenty-one RTP students and 14 faculty members were interviewed. The main motivation for students to participate was the desire to learn how to do research. The introduction course providing the students with the basic competencies needs to be improved in terms of practical activities. It was reported that during the project process students needed intensive guidance especially in finding a research topic and a mentor. The students' lack of time, deficit of enough mentoring and the fact that conducting a research does not provide a competitive advantage for residency are important obstacles to the completion of the program. The most frequently mentioned achievement of the students is to learn all the stages of the research as well as getting acquainted with critical thinking. CONCLUSIONS This research showed that it was realistic to implement research programs for highly motivated students in medical schools with conditions like those in EUFM. The solution of mentor shortage emerged in this study is dependent on the adoption of student research as a national policy. Getting acquainted with the interrogative thinking style, conducting research, and making lifelong learning a core value are more important outcomes of research programs than the number of completed projects.
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Affiliation(s)
- Zeliha Öcek
- Department of Public Health, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Hilal Batı
- Department of Medical Education, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Ebru Demirel Sezer
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, 35100, Izmir, Turkey.
| | - Özge Altun Köroğlu
- Division of Neonatology, Department of Paediatrics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Özlem Yılmaz
- Department of Histology and Embryology, Faculty of Medicine, Ege University, Izmir, Turkey
| | | | - Aliye Mandıracıoğlu
- Department of Public Health, Faculty of Medicine, Ege University, Izmir, Turkey
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Demir G, Bulut N, Yılmaz Ö, Karaduman A, Alemdaroğlu-Gürbüz İ. Manual ability and upper limb performance in nonambulatory stage of Duchenne muscular dystrophy. Arch Pediatr 2020; 27:304-309. [PMID: 32718814 DOI: 10.1016/j.arcped.2020.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/03/2020] [Accepted: 06/23/2020] [Indexed: 11/26/2022]
Abstract
PURPOSE The functional use of the upper extremities in daily living activities has become important in the later ages with the increasing life expectancy of patients with Duchenne muscular dystrophy (DMD). This study aimed to assess manual ability and upper limb performance of nonambulatory children with DMD, and to determine their relationship with factors that might affect ability and performance. METHODS Manual ability was determined via the ABILHAND-Kids questionnaire and upper limb performance was assessed with the Performance of Upper Limb (PUL) test. Possible related factors such as functional level, steroid usage, upper limb range of motion (ROM), thumb opposition, upper limb muscular strength, and grip strength were evaluated. Correlations of related factors with manual ability and upper limb performance were analyzed. RESULTS The mean age of 23 nonambulatory DMD children was 13.04±1.39 years. Moderate impairments were determined according to the ABILHAND-Kids and PUL, with scores of 26.30±10.74 and 46.22±15.02, respectively. The functional level, steroid usage, duration of wheelchair use, upper extremity ROM, and global upper limb muscle strength of children were weak-to-strongly correlated with at least one score of ABILHAND-Kids and PUL (P<0.05). CONCLUSION Children with DMD may already have severe proximal and mid-level upper extremity involvement, even reflected in distal functions, at the time when they progress to the nonambulatory stage. Besides muscular strength, many related factors should be taken into account for therapists to assess and treat upper limb performance at later stages of DMD.
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Affiliation(s)
- G Demir
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University,, 06100 Samanpazarı, Altındağ, Ankara, Turkey
| | - N Bulut
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University,, 06100 Samanpazarı, Altındağ, Ankara, Turkey
| | - Ö Yılmaz
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University,, 06100 Samanpazarı, Altındağ, Ankara, Turkey
| | - A Karaduman
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University,, 06100 Samanpazarı, Altındağ, Ankara, Turkey
| | - İ Alemdaroğlu-Gürbüz
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University,, 06100 Samanpazarı, Altındağ, Ankara, Turkey.
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Güneş Y, Yılmaz Ö. EP.86The effect of trunk training on trunk control, upper extremity, and pulmonary function in children with Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Alemdaroğlu-Gürbüz I, İpek C, Yılmaz Ö, Karaduman A, Topaloğlu H. EP.90The relationship between "fear of falling" and physical performance, and quality of life in children with Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Caf F, Şen Özdemir N, Yılmaz Ö, Durucan F, Ak İ. Fatty acid and lipophilic vitamin composition of seaweeds from Antalya and Çanakkale (Turkey). Grasas y Aceites 2019. [DOI: 10.3989/gya.0704182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The lipophilic vitamin and fatty acid profiles were determined in five edible seaweeds: Corallina elongata J. Ellis & Solander, 1786; Cystoseira barbata (Stackhouse) C. Agardh, 1820; Jania rubens (Linnaeus) J.V. Lamouroux, 1816; Laurencia obtusa (Hudson) J.V. Lamouroux, 1813 and Sargassum vulgare C. Agardh, 1820. Saturated fatty acids (SFAs) were the major fatty acid group, and16:0 formed the highest SFA content (34–40%). 16:0 was higher in the brown seaweeds (C. barbata, 40.55%; S. vulgare, 37.11%) than in the red seaweeds (C. elongata, 36.5%; L. obtusa, 34.57%; J. rubens, 34.22%). The other major fatty acids in the seaweeds were 18:1n-9 and 16:1n-7 from MUFA in the analyzed species. In addition, EPA was found in significant levels in the red seaweeds, whereas DHA was not detected in the analyzed species. The findings showed that difference among species were not statistically significant (p = 0.09–0.11), yet differences between two families (Sargassaceae and Corallinaceae) were significant (p = 0.006) in the fatty acid profile (p < 0.01). Also, differences between the Corallinaceae and Rhomomelaceae families were partially significant (p = 0.011–0.013) (p < 0.01). K1 and K2 vitamins as well as δ-tocopherol, α-tocopherol and retinol acetate were determined to be present in the seaweed extracts. Finally, ergosterol, stigmasterol and ß-sitosterol were found in all samples in differing ratios per species.
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Topal E, Karagöl HİE, Yılmaz Ö, Arga M, Köksal B, Yılmaz ÖÖ, Anıl H, Harmancı K, Kutluğ Ş, Öztürk F, Razi HC, Türktaş İ, Demirsoy MS, Bakırtaş A. Comparison of practical application steps of the previously used adrenaline auto injector in Turkey (EpiPen) and the currently available adrenaline auto injector (Penepin): a multi-center study. Turk Arch Pediatr 2018; 53:149-154. [PMID: 30459513 DOI: 10.5152/turkpediatriars.2018.6734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 07/18/2018] [Indexed: 11/22/2022]
Abstract
Aim It has been shown by a great number of studies that the correct use of adrenaline auto injectors prescribed to patients with anaphylaxis is associated with the design of the auto injector, in addition to training. The aim of this study was to compare the skills of adults in using two different auto injectors prescribed to patients with anaphylaxis. Material and Methods Parents of patients aged between 1 and 18 years who referred to allergy outpatients were included in the study. Results A total of 630 volunteers from nine centers were included in the study. Four hundred fifty-seven (72.5%) of the participants were females and 235 (37.3%) were undergraduates. The rate of showing all the steps of auto injector trainers correctly by the participants was found as (60.2%) (n=379) for EpiPen and 42.9% (n=270) for Penepin (p<0.001). The most frequent mistake with both auto injector trainers was the step of "place appropriate injection tip into outer thigh/press the trigger so it clicks." When the preferences of the volunteers were asked after training and application, 527 (83.7%) chose EpiPen, stating that it was easier and simpler to use. Conclusions Our study showed that the correct usage rates of both adrenaline auto injectors were much lower than expected and there could be mistakes in the application of both. It could be appropriate to make improvements in the design of Penepin, which is still the only available adrenaline auto injector in Turkey, such that its application steps will be simpler and quicker.
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Affiliation(s)
- Erdem Topal
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, İnönü University School of Medicine, Malatya Turkey
| | - Hacer İlbilge Ertoy Karagöl
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Yıldırım Beyazıt University School of Medicine, Ankara, Turkey
| | - Özlem Yılmaz
- Department of Pediatric Allergy and Asthma, Mersin City Hospital, Mersin, Turkey
| | - Mustafa Arga
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Medeniyet University School of Medicine, İstanbul, Turkey
| | - Burcu Köksal
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Başkent University School of Medicine, Ankara, Turkey
| | - Özlem Özbek Yılmaz
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Başkent University School of Medicine, Ankara, Turkey
| | - Hülya Anıl
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Koray Harmancı
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Şeyhan Kutluğ
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Ondokuz Mayıs University School of Medicine, Samsun, Turkey
| | - Fadıl Öztürk
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Ondokuz Mayıs University School of Medicine, Samsun, Turkey
| | - Hasan Cem Razi
- Department of Pediatric Allergy and Asthma, Acıbadem Hospital, Ankara, Turkey
| | - İpek Türktaş
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Gazi University School of Medicine, Ankara, Turkey
| | - Mehmet Sadık Demirsoy
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Gazi University School of Medicine, Ankara, Turkey
| | - Arzu Bakırtaş
- Department of Pediatrics, Division of Pediatric Allergy and Asthma, Gazi University School of Medicine, Ankara, Turkey
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Zorbozan O, Harman M, Evren V, Erdoğan MA, Kılavuz A, Tunalı V, Çavuş İ, Yılmaz Ö, Özbilgin A, Turgay N. [Infecting glial cells with antimony resistant Leishmania tropica: A new ex-vivo model]. MIKROBIYOL BUL 2018; 52:49-55. [PMID: 29642829 DOI: 10.5578/mb.66350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Leishmaniasis is a vector-borne zoonotic disease that shows different clinical features like cutaneous, mucocutaneous, visceral and viscerotropic forms. The protocols used in the treatment of leishmaniasis are toxic and have many limitations during administration. One of the limitations of treatment is the resistance against the protocols in practice. There is also a need to define new treatment options especially for resistant patients. Ex-vivo models using primary cell cultures may be a good source for evaluating new drug options in patients with antimony resistance, in addition to in-vitro and in-vivo studies. In this study, it was aimed to define a new ex-vivo culture model to evaluate treatment options in patients with cutaneous leishmaniasis who did not respond to treatment. In our experimental model of ex-vivo infection, Leishmania tropica promastigotes isolated from a case previously diagnosed with cutaneous leishmaniasis were used. The primary astroglial cell culture used for the ex-vivo model was prepared from 2-3 days old neonatal Sprague Dawley rat brains under sterile conditions by the modification McCarthy's method. The astroglia cells, which reached sufficient density, were infected with antimony resistant L.tropica promastigotes. After 24 hours of incubation, the supernatant on the cells were collected, the cell culture plate was dried at room temperature, then fixed with methyl alcohol and stained with Giemsa to search for L.tropica amastigotes. Amastigotes were intensely observed in glia cells in primary cell cultures infected with L.tropica promastigotes. No promastigotes were seen on Giemsa stained preparations of the precipitates prepared from the bottom sediment after the centrifugation of the liquid medium removed from the infected plates. In this study, promastigotes from a cutaneous leishmaniasis patient unable to respond to pentavalent antimony therapy were shown to infect rat glia cells and converted to amastigote form. This amastigote glial cell model, as far as we know, is the first model in the literature produced by L.tropica. The occurrence of L.tropica amastigote forms in glia cells may be indicative of the ability of Leishmania species to infect the central nervous system. The central nervous system may be an area for the Leishmania amastigotes to escape from the immune system in cases of leishmaniasis without a treatment response. Our study is important because it is the first study to show the infection of glia cells with L.tropica amastigotes.
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Affiliation(s)
- Orçun Zorbozan
- Ege University Faculty of Medicine, Department of Parasitology, Izmir, Turkey
| | - Mehmet Harman
- Dicle University Faculty of Medicine, Department of Dermatology, Diyarbakir, Turkey
| | - Vedat Evren
- Ege University Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | | | - Aslı Kılavuz
- Ege University Faculty of Medicine, Department of Geriatric, Izmir, Turkey
| | - Varol Tunalı
- Ege University Faculty of Medicine, Department of Parasitology, Izmir, Turkey
| | - İbrahim Çavuş
- Celal Bayar University Faculty of Medicine, Department of Parasitology, Manisa, Turkey
| | - Özlem Yılmaz
- Ege University Faculty of Medicine, Department of Physiology, Izmir, Turkey
| | - Ahmet Özbilgin
- Celal Bayar University Faculty of Medicine, Department of Parasitology, Manisa, Turkey
| | - Nevin Turgay
- Ege University Faculty of Medicine, Department of Parasitology, Izmir, Turkey
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Özeş AR, Pulliam N, Ertosun MG, Yılmaz Ö, Tang J, Çopuroğlu E, Matei D, Özeş ON, Nephew KP. Protein kinase A-mediated phosphorylation regulates STAT3 activation and oncogenic EZH2 activity. Oncogene 2018; 37:3589-3600. [PMID: 29576612 PMCID: PMC6023775 DOI: 10.1038/s41388-018-0218-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 01/09/2018] [Accepted: 01/10/2018] [Indexed: 01/10/2023]
Abstract
Polycomb Repressive Complex 2 (PRC2) member enhancer of zeste homologue 2
(EZH2) trimethylates histone H3 lysine 27 (H3K27me3), alters chromatin structure
and contributes to epigenetic regulation of gene expression in normal and
disease processes. Phosphorylation of EZH2 augmented EZH2 oncogenic activity in
cancer but observations have been limited to serine 21
(S21) residue by protein kinase B.
In addition, phosphorylation of the evolutionarily conserved T372 motif of EZH2
by p38 resulted in EZH2 interaction with Ying Yang 1 and promoted muscle stem
cell differentiation. In the present study, we used epithelial ovarian cancer
(OC) cells as a model to demonstrate that phosphorylation of EZH2 at T372 by
protein kinase A (PKA) induced a dominant-negative EZH2 phenotype, inhibited OC
cell proliferation and migration in vitro and decreased ovarian
xenograft tumor growth in vivo. Phosphorylation of T372 by PKA
enhanced the interaction between EZH2 and signal transducer and activator of
transcription 3 (STAT3), and STAT3 binding to pT372-EZH2 reduced cellular levels
of pSTAT3 and downregulated interleukin 6 receptor expression in OC.
Furthermore, PKA-mediated pT372-EZH2 decreased ATP levels and altered
mitochondrial gene expression, resulting in mitochondrial dysfunction and
reduced OC cell growth. These findings demonstrate that PKA-mediated T372
phosphorylation reduces oncogenic EZH2 activity and reveal a novel role for
pT372 in regulating EZH2 in OC and possibly other cancers.
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Affiliation(s)
- Ali R Özeş
- Molecular and Cellular Biochemistry Department, Indiana University, Bloomington, IN, 47405, USA.,Indiana University School of Medicine, Medical Sciences, Bloomington, IN, 47405, USA
| | - Nick Pulliam
- Molecular and Cellular Biochemistry Department, Indiana University, Bloomington, IN, 47405, USA.,Indiana University School of Medicine, Medical Sciences, Bloomington, IN, 47405, USA
| | - Mustafa G Ertosun
- Department of Medical Biology and Genetics, Akdeniz University, Antalya, Turkey
| | - Özlem Yılmaz
- Department of Medical Biology and Genetics, Akdeniz University, Antalya, Turkey
| | - Jessica Tang
- Indiana University School of Medicine, Medical Sciences, Bloomington, IN, 47405, USA
| | - Ece Çopuroğlu
- Department of Medical Biology and Genetics, Akdeniz University, Antalya, Turkey
| | - Daniela Matei
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Osman N Özeş
- Department of Medical Biology and Genetics, Akdeniz University, Antalya, Turkey.
| | - Kenneth P Nephew
- Molecular and Cellular Biochemistry Department, Indiana University, Bloomington, IN, 47405, USA. .,Indiana University School of Medicine, Medical Sciences, Bloomington, IN, 47405, USA. .,Departments of Cellular and Integrative Physiology and Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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Yılmaz H, Yılmaz Ö, Çamlıdağ İ, Belet Ü, Akan H. Single center experience with intralesional bleomycin sclerotherapy for lymphatic malformations. Jpn J Radiol 2017; 35:590-596. [PMID: 28779454 DOI: 10.1007/s11604-017-0672-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/26/2017] [Indexed: 02/06/2023]
Abstract
PURPOSE The purpose of our study was to evaluate the efficacy of percutaneous sclerotherapy using bleomycin in treatment of lymphatic malformations. METHODS Between January 2009 and January 2013, ten patients with lymphatic malformations who were admitted to the interventional radiology department were included in this retrospective study. Intralesional bleomycin was administered by percutaneous injection through 21-23 Gauge needles with a dose of 1 mg/kg body weight. Patients were clinically and radiologically assessed at baseline and followed at first and third months after treatment. Response to treatment was measured visually by using photographs and by radiological images. Symptomatic improvement was also evaluated either by patients or parents. RESULTS Excellent resolution was obtained visually in 80% of patients with lymphatic malformation. Significant resolution was achieved in 20% of patients. The percentage of radiographic resolution in size and the improvement in symptoms evaluated by patients or parents were similar with visual outcomes. No side effects were recorded except for fever in one patient and transient erythema in another patient. CONCLUSION Intralesional bleomycin is a safe and effective treatment for patients with lymphatic malformations.
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Affiliation(s)
- Hakan Yılmaz
- Department of Radiology, Hitit University, Çorum Training and Research Hospital, Çorum, Turkey
| | - Özlem Yılmaz
- Department of Dermatology, Hitit University, Çorum Training and Research Hospital, 19200, Çorum, Turkey
| | - İlkay Çamlıdağ
- Department of Radiology, Ondokuz Mayıs University, 55139, Kurupelit/Samsun, Turkey. .,, Cumhuriyet M., Adnan Menderes Bulv., Zeren Sitesi, C Blok Kat:4 No:8, 55200, Atakum/Samsun, Turkey.
| | - Ümit Belet
- Department of Radiology, Ondokuz Mayıs University, 55139, Kurupelit/Samsun, Turkey
| | - Hüseyin Akan
- Department of Radiology, Ondokuz Mayıs University, 55139, Kurupelit/Samsun, Turkey
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Arslan N, Yılmaz Ö, Demiray-Gürbüz E. Importance of antimicrobial susceptibility testing for the management of eradication in Helicobacter pylori infection. World J Gastroenterol 2017; 23:2854-2869. [PMID: 28522904 PMCID: PMC5413781 DOI: 10.3748/wjg.v23.i16.2854] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/06/2017] [Accepted: 03/30/2017] [Indexed: 02/06/2023] Open
Abstract
The management of Helicobacter pylori (H. pylori) infection treatment differs from the common treatment protocol for other infectious diseases. Because culture- or molecular-guided approaches face several practical issues, such as the invasive procedures required to obtain gastric biopsy specimens and the lack of availability of routine laboratory testing in some places, H. pylori treatment includes the administration of two or three empirically selected antibiotics combined with a proton pump inhibitor rather than evidence-based eradication treatment. The efficacy of empirical therapy is decreasing, mostly due to increasing multiple resistance. Multiresistance to levofloxacin, clarithromycin, and metronidazole, which are commonly used in empirical treatments, appears to have increased in many countries. Mutations play a primary role in the antimicrobial resistance of H. pylori, but many different mechanisms can be involved in the development of antibiotic resistance. Determining and understanding these possible mechanisms might allow the development of new methods for the detection of H. pylori and the determination of antimicrobial resistance. A treatment based on the detection of antimicrobial resistance is usually more effective than empirical treatment. Nevertheless, such an approach before treatment is still not recommended in the Maastricht guidelines due to the difficulty associated with the routine application of available culture- or molecular-based susceptibility tests, which are usually administered in cases of treatment failure. The management of first and rescue treatments requires further research due to the steadily increase in antimicrobial resistance.
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Çalışkan R, Nohut N, Yılmaz Ö, Sahin E, Balci M. Unusual manganese(III)-mediated oxidative free-radical additions of Meldrum's acid and dimethyl malonate to benzonorbornadiene and oxabenzonorbornadiene. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Demiray-Gürbüz E, Yılmaz Ö, Olivares AZ, Gönen C, Sarıoğlu S, Soytürk M, Tümer S, Altungöz O, Şimşek İ, Perez Perez GI. Rapid identification of Helicobacter pylori and assessment of clarithromycin susceptibility from clinical specimens using FISH. J Pathol Clin Res 2016; 3:29-37. [PMID: 28138399 PMCID: PMC5259560 DOI: 10.1002/cjp2.57] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/03/2016] [Accepted: 08/12/2016] [Indexed: 12/21/2022]
Abstract
Helicobacter pylori remains one of the most common bacterial infections worldwide. Clarithromycin resistance is the most important cause of H. pylori eradication failures. Effective antibiotic therapies in H. pylori infection must be rapidly adapted to local resistance patterns. We investigated the prevalence of clarithromycin resistance due to mutations in positions 2142 and 2143 of 23SrRNA gene of H. pylori by fluorescence in situ hybridisation (FISH), and compared with culture and antimicrobial susceptibility testing in 234 adult patients with dyspepsia who were enrolled. Antrum and corpus biopsy specimens were obtained for rapid urease test, histopathology and culture. Epsilometer test was used to assess clarithromycin susceptibility. H. pylori presence and clarithromycin susceptibility were determined by FISH in paraffin‐embedded biopsy specimens. We found that 164 (70.1%) patients were positive for H. pylori based on clinical criteria, 114 (69.5% CI 62.5–76.6%) were culture positive, and 137 (83.5% CI 77.8–89.2%) were FISH positive. Thus the sensitivity of FISH was significantly superior to that of culture. However specificity was not significantly different (91.4 versus 100.0%, respectively). The resistance rate to clarithromycin for both antrum and corpus was detected in H. pylori‐positive patients; 20.2% by FISH and 28.0% by E‐test.The concordance between E‐test and FISH was only 89.5% due to the presence of point mutations different from A2143G, A2142G or A2142C. We conclude that FISH is significantly more sensitive than culture and the E‐test for the detection of H. pylori and for rapid determinination of claritromycin susceptibility. The superior hybridisation efficiency of FISH is becoming an emerging molecular tool as a reliable, rapid and sensitive method for the detection and visualisation of H. pylori, especially when the management of H. pylori eradication therapy is necessary. This is particularly important for the treatment of patients with H. pylori eradication failure.
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Affiliation(s)
- Ebru Demiray-Gürbüz
- Department of Medical Microbiology, Faculty of Medicine Dokuz Eylül University İzmir Turkey
| | - Özlem Yılmaz
- Department of Medical Microbiology, Faculty of Medicine Dokuz Eylül University İzmir Turkey
| | - Asalia Z Olivares
- Departments of Medicine and Microbiology New York University, School of Medicine, NYUSM New York NY USA
| | - Can Gönen
- Departments of Gastroenterology, Faculty of Medicine Dokuz Eylül University Izmir Turkey
| | - Sülen Sarıoğlu
- Pathology, Faculty of Medicine Dokuz Eylül University Izmir Turkey
| | - Müjde Soytürk
- Departments of Gastroenterology, Faculty of Medicine Dokuz Eylül University Izmir Turkey
| | - Sait Tümer
- Medical Biology and Genetics, Faculty of Medicine Dokuz Eylül University İzmir Türkiye
| | - Oğuz Altungöz
- Medical Biology and Genetics, Faculty of Medicine Dokuz Eylül University İzmir Türkiye
| | - İlkay Şimşek
- Departments of Gastroenterology, Faculty of Medicine Dokuz Eylül University Izmir Turkey
| | - Guillermo I Perez Perez
- Departments of Medicine and Microbiology New York University, School of Medicine, NYUSM New York NY USA
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Bozkurt N, Yurdasal B, Bozkurt Aİ, Yılmaz Ö, Tekin M. Respiratory Systems of Dental Technicians Negatively Affected during 5 Years of Follow-Up. Balkan Med J 2016; 33:426-33. [PMID: 27606139 DOI: 10.5152/balkanmedj.2016.15312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 07/03/2015] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Dental laboratory technician is one of the professions in which dust exposure is frequently experienced and therefore the health of workers has to be monitored. AIMS In this study, changes in the pulmonary functions and of pneumoconiosis frequencies among dental technicians after five years were investigated by comparing the results of two screenings carried out in 2008 and 2013. STUDY DESIGN Cohort study. METHODS In 2008 and 2013, Provincial Health Directorate carried out two different health screenings covering all of the dental technicians working in dental laboratories in Denizli. In both screenings, a questionnaire was applied, with which socio-demographic and workplace properties of the technicians were obtained. In addition, Pulmonary function tests (PFT) and standard chest X-rays of the technicians were performed. The results of these two screenings were evaluated by a chest specialist, and physical examinations were performed as necessary. In 2013, technicians who had pathologies underwent computerized tomography (HRCT). In this study, the study group was composed of dental laboratory technicians that participated in both screenings (2008 and 2013) and the data obtained from the screenings were compared. The gathered data were analyzed using paired student-t and X(2) tests. RESULTS A total of 125 dental laboratory technicians participated in the two screenings. Overall, 92% of the technicians were male and the mean age of the participants was 35. Technicians were working for 9 hours a day, 6 days a week. Total exposure time was calculated to be around 41 thousand hours. Approximately 60% of workers were smokers. When the results of PFT were analyzed, 73% of the first evaluations were found to be normal; however, this ratio decreased to 51% in the second analysis five years later. In the second PFT measurement, compared to the first, there was a 23% decrease in the forced vital capacity (FVC) value, and a 15.7% decrease in forced expiratory volume in one second (FEV1). While restrictive disorder was found 25% in the first PFT evaluations, this ratio increased to 31% in the second PFT. When the radiological results were considered, 62% of the first X-ray results were found to be normal but this ratio decreased to 18% in 2013. While reticular/reticulonodular opacities were found in 11% of cases in 2008, it increased to 30% in 2013. Seven technicians were diagnosed with pneumoconiosis (5.6%). CONCLUSION Respiratory tracts of the technicians were negatively affected during the five year period. The number of pneumoconiosis cases (5.6%) shows that it is necessary to adopt comprehensive work health and safety precautions for laboratories.
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Affiliation(s)
- Nurgül Bozkurt
- Department of Pulmonology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Belkıs Yurdasal
- Department of Oral Health, Denizli Health Directorate, Denizli, Turkey
| | - Ali İhsan Bozkurt
- Department of Public Health, Pamukkale University School of Medicine, Denizli, Turkey
| | - Özlem Yılmaz
- Oral Health Division, Denizli Health Directorate, Denizli, Turkey
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Kayan M, Demirtas H, Türker Y, Kayan F, Çetinkaya G, Kara M, Orhan Çelik A, Umul A, Yılmaz Ö, Recep Aktaş A. Carotid and cerebral CT angiography using low volume of iodinated contrast material and low tube voltage. Diagn Interv Imaging 2016; 97:1173-1179. [PMID: 27421672 DOI: 10.1016/j.diii.2016.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 06/12/2016] [Accepted: 06/14/2016] [Indexed: 01/26/2023]
Abstract
PURPOSE To evaluate image quality of carotid computed tomography angiography (CTA) using a low voltage (80kV) and low amount of iodinated contrast material. MATERIALS-METHODS A total of 101 patients referred for carotid CTA were randomly assigned to receive a specific protocol. In group A patients received intravenous administration of contrast material at a dose of 1mL/kg and CTA examinations were performed at 100kV. In group B, patients received intravenous administration of contrast material at a dose of 0.5mL/kg and CTA examinations were performed at 80kV. The same nonionic iodinated contrast material containing 370mg of iodine per mL was used in both groups. Attenuation values were measured from the center of specific arterial segments using regions of interest. Attenuation values above 300HU were accepted as significant. Institutional review board approval was obtained. RESULTS A total of 50 patients were included in group A (38 men, 12 women; mean age, 63.56 years±13.18 [SD]) and 51 patients in group B (33 men, 18 women; mean age, 59.60 years±16.63 [SD]). A total of 1615 arterial segments (1515 common carotid artery-middle cerebral artery and 101 aortic arches) were analyzed. Venous contamination was not observed in either group. The mean attenuation values of all arterial segments in both groups were greater than 300HU. Mean arterial attenuation value in group B (499.22HU±97.25 [SD]) was significantly greater than in group A (374.36HU±73.79 [SD]) (P<0.01). Hemodynamically significant stenosis (grade III stenosis or >70%) was detected in 2 segments in group A and in 3 segments in group B, while grade IV stenosis (occlusion) was detected in 2 segments in group B. Distal common carotid artery dissection was detected in 1 patient and aortic dissection was detected in 1 patient in group B. Total dose-length product (DLP) value was significantly greater in group A (225.74mGy·cm±21.80 [SD]) than in group B (116.60mGy·cm±21.22 [SD]) (P<0.01). The mean tube current was similar in group A (2013.11mAs±195.92 [SD]) and in group B (2096.64 mAs±309.03 [SD]) (P<0.05). CONCLUSION Carotid and cerebral CTA examinations using 128-section CT can be successfully obtained using an imaging protocol that combines low voltage and 50% reduction in the volume of iodinated contrast material. This provides good image quality with low radiation dose.
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Affiliation(s)
- M Kayan
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - H Demirtas
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - Y Türker
- Department of Cardiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - F Kayan
- Clinic of Chest Diseases, Isparta State Hospital, Isparta, Turkey.
| | - G Çetinkaya
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - M Kara
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - A Orhan Çelik
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - A Umul
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - Ö Yılmaz
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
| | - A Recep Aktaş
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, 32260 Isparta, Turkey.
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Celik S, Almalı N, Aras A, Yılmaz Ö, Kızıltan R. Intraoperatively Testing the Anastomotic Integrity of Esophagojejunostomy Using Methylene Blue. Scand J Surg 2016; 106:62-67. [DOI: 10.1177/1457496916630652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background: Intraoperative testing of gastrointestinal anastomosis effectively ensures anastomotic integrity. This study investigated whether the routine use of methylene blue intraoperatively identified leaks to reduce the postoperative proportion of clinical leaks. Methods: This study retrospectively analyzed consecutive total gastrectomies performed from January 2007 to December 2014 in a university hospital setting by a general surgical group that exclusively used the methylene blue test. All surgeries were performed for gastric or junctional cancers (n = 198). All reconstructions (Roux-en Y esophagojejunostomy) were performed using a stapler. The methylene blue test was used in 108 cases (group 1) via a nasojejunal tube. No test was performed for the other 90 cases (group 2). Intraoperative leakage rate, postoperative clinical leakage rate, length of hospitalization, and mortality rate were the outcome measures. Results: The intraoperative leakage rate was 7.4% in group 1. The postoperative clinical leakage rate was 8.6%. The postoperative clinical leakage rate was 3.7% in group 1 and 14.4% in group 2 (p = 0.007). There were no postoperative clinical leaks when an intraoperative leak led to concomitant intraoperative repair. The median length of hospital stay was 6 days in group 1 and 8 days in group 2 (p < 0.001). One death occurred in each group. No test-related complications were observed. Conclusion: The methylene blue test for esophagojejunostomy is a safe and reliable method for the assessment of anastomosis integrity, especially in cases with difficult esophagojejunostomic construction.
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Affiliation(s)
- S. Celik
- Department of General Surgery, Faculty of Medicine, Yuzuncu Yıl University, Van, Turkey
| | - N. Almalı
- General Surgery Clinic, Van Training and Research Hospital, Van, Turkey
| | - A. Aras
- Department of General Surgery, Faculty of Medicine, Yuzuncu Yıl University, Van, Turkey
| | - Ö. Yılmaz
- Department of General Surgery, Faculty of Medicine, Yuzuncu Yıl University, Van, Turkey
| | - R. Kızıltan
- Department of General Surgery, Faculty of Medicine, Yuzuncu Yıl University, Van, Turkey
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Soylu A, Öztürk Y, Doğan Y, Özmen D, Yılmaz Ö, Kuyum P, Kavukçu S. Screening of celiac disease in children with Henoch-Schoenlein purpura. Rheumatol Int 2016; 36:713-7. [PMID: 26792132 DOI: 10.1007/s00296-016-3425-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 01/05/2016] [Indexed: 02/05/2023]
Abstract
Prevalence of celiac disease (CD) is 2.42 % in healthy Turkish children. The frequency of IgA-associated disorders is increased in CD. Henoch-Schoenlein purpura (HSP) is an IgA-associated vasculitis. Association of HSP with CD has not been evaluated. We aimed to evaluate whether CD prevalence is increased in children with HSP. Children with HSP were evaluated for demographic, anthropometric, clinical, and laboratory data including urinalysis, complete blood count, albumin, creatinine, and IgA levels. In addition, tTG-IgA, EMA-IgA, anti-DGP-IgA, and IgG antibody levels were measured. Seropositive patients were evaluated by endoscopic small bowel biopsy. The rate of CD seropositivity and confirmed CD in HSP patients was compared to the rate in healthy Turkish children. There were 42 children (25 male) with HSP. No patient had classical CD symptoms, but two patients had growth failure. None of them had IgA deficiency, anemia or hypoalbuminemia. Celiac serology was positive in five (12 %) children. Endoscopic evaluation was performed in four patients, and two (5 %) of them were confirmed to have CD. Prevalence of both CD seropositivity and histologically confirmed CD in children with HSP was significantly higher compared to healthy Turkish children (p < 0.001 and p = 0.019, respectively). CD seropositivity rate in children with HSP (12 %) is significantly higher than the rate in healthy children. Although the number of children with HSP is small in this preliminary study, this result suggests that celiac screening may be considered in children with HSP.
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Affiliation(s)
- Alper Soylu
- Division of Nephrology, Department of Pediatrics, Dokuz Eylül University Medical Faculty, 35340, Balcova, Izmir, Turkey.
| | - Yeşim Öztürk
- Division of Nephrology, Department of Pediatrics, Dokuz Eylül University Medical Faculty, 35340, Balcova, Izmir, Turkey
| | - Yavuz Doğan
- Department of Microbiology, Dokuz Eylül University Medical Faculty, Izmir, Turkey
| | - Derya Özmen
- Division of Nephrology, Department of Pediatrics, Dokuz Eylül University Medical Faculty, 35340, Balcova, Izmir, Turkey
| | - Özlem Yılmaz
- Department of Microbiology, Dokuz Eylül University Medical Faculty, Izmir, Turkey
| | - Pınar Kuyum
- Division of Nephrology, Department of Pediatrics, Dokuz Eylül University Medical Faculty, 35340, Balcova, Izmir, Turkey
| | - Salih Kavukçu
- Division of Nephrology, Department of Pediatrics, Dokuz Eylül University Medical Faculty, 35340, Balcova, Izmir, Turkey
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Yılmaz Ö, Ertoy Karagöl Hİ, Topal E, Ünlüsoy Aksu A, Eğritaş Ö, Işık Gönül İ, Bakırtaş A. Clinicopathological dissociation in isolated esophageal eosinophilia. Turk J Gastroenterol 2015; 25 Suppl 1:276-7. [PMID: 25910339 DOI: 10.5152/tjg.2014.6326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Özlem Yılmaz
- Department of Pediatric Allergy and Asthma, Gazi University Faculty of Medicine, Ankara, Turkey.
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Kayan M, Çetin M, Aktaş AR, Yılmaz Ö, Ceylan E, Eroğlu HE. Pre-operative Arterial Embolization of Symptomatic Giant Hemangioma of the Liver. Prague Med Rep 2015; 113:166-71. [DOI: 10.14712/23362936.2015.31] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The cavernous hemangiomas of the liver are usually small sized and asymptomatic. Most of them are incidentally diagnosed and a very small portion requires therapy. Giant hemangioma can be symptomatic, and this condition is the indication for treatment. The striking complication of surgical treatment of cavernous hemangiomas is intra-operative bleeding. In this case, we aimed to demonstrate that the risk of intraoperative bleeding can be eliminated with the preoperative percutaneous trans-catheter arterial embolization technique.
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Yılmaz Ö, Eroğlu PK, Yurdakul FG, Çimen YG, Eser F, Alhan A, Bodur H. Comparing Physical Therapy Accompanying Exercise with Only Exercise Treatments in Patients with Chronic Mechanical Low Back Pain. Tod 2015. [DOI: 10.4274/tod.93064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Umul M, Değirmenci B, Umul A, Uçar M, Yılmaz Ö, Altok M, Güneş M, Orhan H, Serel TA. Examining the aetiopathogenesis of varicoceles: the relationship between retroperitoneal adipose tissue and testicular venous drainage. Andrologia 2015; 48:293-9. [PMID: 26085083 DOI: 10.1111/and.12446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2015] [Indexed: 11/29/2022] Open
Abstract
This study evaluated the effect of retroperitoneal adipose tissue on testicular venous drainage and tested the nutcracker phenomenon by clinical and imaging findings. A total of 95 patients were included. The patients were evaluated with a detailed medical history and physical examination for varicocele. Their weight, height and waist circumference were also recorded. Body mass index was calculated as weight (kg)/height squared (m(2) ). Pampiniform plexus diameters were measured by scrotal colour Doppler ultrasonography, and retroperitoneal adipose tissue was evaluated by noncontrast abdominal computed tomography. We determined an almost significant correlation between BMI and varicocele presence by physical examination (P = 0.06). However, there was a significant relationship between WC and varicocele identified by physical examination (P = 0.021). There was a positive and significant relationship between BMI and pampiniform plexus diameters. Furthermore, we detected a negative correlation between retroperitoneal adipose tissue measurements and CDU findings. Additionally, there was a significant correlation between WC, pampiniform plexus diameters and CT findings. It is concluded that increasing BMI and increasing WC may play a protective role in the development of varicocele. There is a need for further studies to verify the effect of obesity on varicocele formation.
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Affiliation(s)
- M Umul
- Department of Urology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - B Değirmenci
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - A Umul
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - M Uçar
- Department of Urology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Ö Yılmaz
- Department of Radiology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - M Altok
- Department of Urology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - M Güneş
- Department of Urology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - H Orhan
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - T A Serel
- Department of Urology, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
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Soylu K, Gedikli Ö, Ekşi A, Aksan G, Meriç M, Gülel O, Yılmaz Ö, Şahin M. OP-017 Neutrophil-to-Lymphocyte Ratio for The Assessment of Hospital Mortality in Patients with Acute Pulmonary Embolism. Am J Cardiol 2014. [DOI: 10.1016/j.amjcard.2014.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Demıray Gürbüz E, Gönen C, Bekmen N, Dölek D, Soytürk M, Sağol Ö, Şimşek İ, Yılmaz Ö. The diagnostic accuracy of urine IgG antibody tests for the detection of Helicobacter pylori infection in Turkish dyspeptic patients. Turk J Gastroenterol 2014. [PMID: 23864449 DOI: 10.4318/tjg.2012.0497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND/AIMS There is increasing interest in noninvasive tests for the assessment of Helicobacter pylori infection, and urine-based tests have been widely used as noninvasive tests to detect Helicobacter pylori infection. The aim of this study was to evaluate the adaptation and usefulness of urine antibody enzyme-linked immunosorbent assay and urine card tests in the clinical setting to detect anti-Helicobacter pylori IgG antibody excreted into urine in Turkish adult patients with dyspepsia. MATERIALS AND METHODS One-hundred twenty-four patients who were admitted and referred for upper endoscopy to Dokuz Eylül University Hospital, Gastroenterology Clinic were studied. Antrum and corpus biopsies were taken, and Helicobacter pylori status was defined in the presence of at least two positive results of rapid urease test, histopathology and culture. Urine and serum specimens of 124 patients were collected and examined for anti-Helicobacter pylori IgG antibody by URINELISA, RAPIRUN (Otsuka Pharmaceutical, Tokyo, Japan) and anti-Helicobacter pylori enzyme-linked immunosorbent assay (Euroimmun, Lübeck, Germany) tests, respectively. RESULTS Helicobacter pylori infection was positive in 82 (66.1%) patients according to the gold standard methods. Among 82 Helicobacter pylori infection-positive patients, 69 patients were positive by both URINELISA and RAPIRUN; 109 of 124 patients were positive by anti-Helicobacter pylori IgG enzyme-linked immunosorbent assay. The sensitivity and specificity of URINELISA, RAPIRUN and anti-Helicobacter pylori IgG enzyme-linked immunosorbent assay were 74.4%, 73.2%, 100% and 81.0%, 78.6%, 35.7%, respectively. However, the urine antibody test cut-off values were searched for the best concordance with the results of gold standard methods. This yielded that the sensitivity and specificity of URINELISA with our new cut-off value (0.530) were 90.2% and 71.4%, respectively. CONCLUSIONS As a first study among Turkish adult patients with dyspepsia, the efficacy of URINELISA was related with the determination of a new cut-off value for pretreatment as a screening test value. We suggest that the cut-off value of the URINELISA test should be evaluated and considered for each patient group and each country. The URINELISA (OD 0.530) and RAPIRUN tests were found useful for the diagnosis of Helicobacter pylori infection in our patients with dyspepsia.
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Affiliation(s)
- Ebru Demıray Gürbüz
- Department of Medical Microbiology, Dokuz Eylül University, School of Medicine, İzmir, Turkey
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Yüksel S, Erbay A, Yanık A, Meriç M, Soylu K, Zengin H, Gülel O, Demircan S, Yılmaz Ö, Şahin M. PP-069 THE FACTORS AFFECTING RADIAL ACCESS IN TRANSRADIAL CORONARY ANGIOGRAPHY AND ANGIOPLASTY PROCEDURES. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70294-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kurşat M, Emre İ, Yılmaz Ö, Erecevit P. Antioxidant and antimicrobial activity in the seeds of Origanum vulgare L. subsp. gracile (C. Koch) Ietswaart and Origanum acutidens (Hand.-Mazz.) Ietswaart from Turkey. Grasas y Aceites 2011. [DOI: 10.3989/gya.113610] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Yılmaz Ö, Şahin E, Tümer M, Aslantas M. Synthesis, structural characterization, electrochemical, catalytic, antimicrobial and thermal properties of the polymeric metal complexes. Acta Crystallogr A 2007. [DOI: 10.1107/s0108767307096134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Durna K, Saǧkan O, Yeşildag O, Yılmaz Ö, Koçak E, Elçik M. C-reactive protein and its relation with restenosis after percutaneous transluminal coronary angioplasty. Atherosclerosis 2000. [DOI: 10.1016/s0021-9150(00)80647-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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