Tıp Fakültesi / Faculty of Medicine
Permanent URI for this collectionhttps://hdl.handle.net/11727/1403
Browse
14 results
Search Results
Item Chronic Tonsillitis Is Not Associated with Beta Defensin 1 Gene Polymorphisms in Turkish Population(2015) Arslan, Fatih; Babakurban, Seda Turkoglu; Erbek, Selim S.; Sahin, Feride I.; Terzi, Yunus Kasim; 0000-0001-7308-9673; 0000-0001-5612-9696; 0000-0003-4825-3499; 0000-0001-5067-4044; 25683590; AAC-7232-2020; B-4372-2018; B-7604-2019; AAI-8856-2021Background: Defensins are antimicrobial peptides expressed on mucosal surfaces. They function as part of the innate immune system. Palatine tonsils play important roles in innate immune system. However, our knowledge on the pathophysiology of chronic tonsils is limited. Objective: The aim of this study was to investigate the association between beta defensin 1 gene single nucleotide polymorphisms and chronic tonsillitis. Study design: Prospective, non-randomized, controlled clinical study. Setting: Tertiary referral center. Subjects and methods: Eighty six patients with chronic tonsillitis and eighty controls without history of chronic tonsillitis were enrolled in this study. Genotypes were determined by restriction fragment length polymorphism analyses after polymerase chain reaction. Results: Genotype and allele frequencies of the -20G/A (rs11362), -44C/G (rs1800972) and -52G/A (rs1799946) single nucleotide polymorphisms were not statistically different between patients and control groups (p > 0.05). Conclusion: In this study, we found that DEFB1 gene -20G/A, -44C/G and -52G/A single nucleotide polymorphisms were not associated with chronic tonsillitis. Studies, which analyse other polymorphism of the beta defensin 1 gene in large case series, should be conducted to understand the role of DEFB1 gene on chronic tonsillitis. (C) 2015 Elsevier Ireland Ltd. All rights reserved.Item Fractalkine Receptor Polymorphism and Chronic Tonsillitis(2014) Babakurban, Seda Turkoglu; Erbek, Selim S.; Terzi, Yunus Kasim; Arslan, Fatih; Sahin, Feride I.; https://orcid.org/0000-0001-5067-4044; https://orcid.org/0000-0003-4825-3499; https://orcid.org/0000-0001-5612-9696; https://orcid.org/0000-0001-7308-9673; 24496565; AAI-8856-2021; B-7604-2019; B-4372-2018; AAC-7232-2020The objective of this study is to examine whether there is an association of fractalkine gene receptor polymorphisms with chronic tonsillitis. This is a cross-sectional study in the setting of a tertiary referral center. The study group included 79 patients with chronic tonsillitis and 76 controls without history of chronic tonsillitis. Genotypes were identified by restriction fragment length polymorphism analyses after polymerase chain reaction. c.745G > A (V249I) single nucleotide polymorphism and the frequencies of the G and A alleles did not differ in the patient and control groups (p = 0.363; p = 0.743, respectively). c.839C > T (T280M) single nucleotide polymorphism was found to be higher in controls than in the patients with chronic tonsillitis (p < 0.001). Consistent with this result, T allele frequency was higher in controls than in the patients with chronic tonsillitis (p < 0.001). In this study, we suggested that fractalkine gene receptor c.839C > T (T280M) single nucleotide polymorphism could be associated with a reduced risk of chronic tonsillitis.Item Lack of Association of Matrix Metalloproteinase-9 Promoter Gene Polymorphism in Obstructive Sleep Apnea Syndrome(2015) Yalcinkaya, Mustafa; Erbek, Selim S.; Babakurban, Seda Turkoglu; Kupeli, Elif; Bozbas, Serife; Terzi, Yunus K.; Sahin, Feride Iffet; 0000-0001-5612-9696; 0000-0001-5067-4044; 0000-0003-4825-3499; 0000-0002-5826-1997; 0000-0001-7308-9673; 0000-0002-7230-202X; 26169999; B-4372-2018; AAI-8856-2021; B-7604-2019; AAB-5345-2021; AAC-7232-2020; AAI-8064-2021Purpose: Obstructive sleep apnea syndrome (OSAS) is a public health problem. There is an effort to establish the genetic contributions to the development of OSAS. One is matrix metalloproteinases, extracellular matrix degrading enzymes related to systemic inflammation. However, the impact of matrix metalloproteinase-9 (MMP-9) genotypes on the development of OSAS is unknown. Our aim was to determine whether MMP-9 single nucleotide polymorphism (SNP) (MMP-9 -1562C > T) is related to susceptibility to OSAS. Material and methods: A total of 106 patients with a history of sleep apnea and 88 controls without a history of sleep apnea were enrolled in this study. Genotypes were determined by restriction fragment length polymorphism analyses after polymerase chain reaction. Results: Genotypes and allele frequencies of the MMP-9 -1562C > T SNP was not statistically different between the patient and control groups (p > 0.05). There was a statistical association between apnea -hypopnea index (AHI) and body mass index (BMI), and also between AHI and neck circumference (p < 0.001). There was no association among the genotypes and AHI, neck circumference, or BMI (p > 0.05). Conclusions: We found no association between MMP-9 -1562C > T SNP and OSAS. Studies to investigate the role of other polymorphisms and expression of MMP-9 gene will provide more information. (C) 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.Item FCN2 c.772G > T Polymorphism Is Associated With Chronic Adenoiditis And/Or Tonsillitis, But Not-4 A > G and-602 G > A(2016) Erkan, Alper N.; Oz, Isilay; Terzi, Yunus K.; Aydin, Erdinc; Ozkale, Murat; Babakurban, Seda Turkoglu; Koycu, Alper; Sahin, Feride Iffet; 0000-0003-0625-1057; 0000-0001-5612-9696; 0000-0001-7138-1400; 0000-0003-1290-3509; 0000-0002-7380-4566; 0000-0001-5067-4044; 0000-0001-7308-9673; 0000-0001-6864-7378; 27368434; A-7806-2016; B-4372-2018; H-1063-2019; AAF-3650-2021; AAJ-1452-2021; AAI-8856-2021; AAC-7232-2020; AAJ-2379-2021Objective: Ficolins are complement activating peptides that play a role in the initial host defense against infectious pathogens. In the present study, we investigated the relationship between single nucleotide polymorphisms (SNPs) in the ficolin 2 gene (FCN2) and chronic adenotonsillitis in pediatric cases. Study Design: Case-control study. Methods: A total of 101 pediatric patients diagnosed with chronic adenotonsillitis and 100 healthy children were enrolled in the study. Genotypes of FCN2 promoter SNPs -602 G>A and -4 A>G, and the exonic SNP c.772G>T were determined by light SNP assay after realtime PCR analysis using genomic DNA samples obtained from peripheral blood samples of all participants. Results: Of the 101 chronic tonsillitis patients, 38 were girls and 63 were boys; the mean age was 5.2 +/- 2.3 years. The c.772G>T SNP frequency was significantly higher in chronic adenotonsillitis cases compared to the control group (p = 0.00); however, no significant difference was determined at positions -602 G>A or -4 A>G (p > 0.05). Conclusions: The FCN2 c.772G>T genotype appears to be associated with predisposition to chronic adenotonsillitis in the pediatric age group. This nucleotide change is likely to influence the level of gene expression and contribute to the development of disease. (C) 2016 Elsevier Ireland Ltd. All rights reserved.Item Middle Ear Resonance Frequency in Pilots and Pilot Candidates(2016) Tuncer, Melisa Melek; Babakurban, Seda Turkoglu; Aydin, Erdinc; 0000-0001-6864-7378; 27662350; AAJ-2379-2021BACKGROUND: Barotrauma is a frequent problem in aviation medicine. Eustachian tube dysfunction plays a critical role in the pathogenesis of barotrauma. Function of the Eustachian tube can be indirectly assessed by multifrequency tympanometry, which provides valuable information about the resistance and permeability of the middle ear in a wide frequency range. The aim of this study was to research whether multifrequency tympanometry could be used for assessing middle ear impairments in pilots. METHODS: There were 140 pilots and pilot candidates between the ages of 20-55 with normal otoscopic examination who were evaluated by audiological test batteries. Body mass index values, flight hours, audiometric pure tone thresholds, tympanometry and multifrequency tympanometry test results were noted. RESULTS: There was statistically significant decrease in the multifrequency tympanometry measurements of the left and right ears of the pilots with 200-3000 flight hours compared to pilot candidates, and similarly, the pilots with 3000-10,000 flight hours compared to pilot candidates. DISCUSSION: Multifrequency tympanometry values changed between pilot candidates and pilots. However, the values of multifrequency tympanometry did not change due to flight hours. This test battery should not be used for follow up of pilots in the clinic.Item The Genotoxic Effect of Nasal Steroids on Human Nasal Septal Mucosa and Cartilage Cells In Vitro(2023) Babakurban, Seda Turkoglu; Vural, Omer; Kasap, Yesim Korkmaz; Hizal, Evren; Yurtcu, Erkan; Buyuklu, Adnan Fuat; 0000-0001-5067-4044; 0000-0001-7157-0850; 35695134; AAI-8856-2021; AAJ-1454-2021Objective: To determine whether budesonide (Bud) and triamcinolone acetate (TA) cause DNA fractures in the nasal mucosa and septal cartilage cells through examinations using the comet assay technique. Study design: Prospective, controlled experimental study. Setting: University hospital. Methods: Septal mucosal epithelial and cartilage tissue samples were taken from 9 patients. Cell cultures were prepared from these samples. Then, budesonide and triamcinolone acetate active ingredients at 2 different doses of 0.2 and 10 mu M were separately applied to the cell cultures formed from both tissues of each patient, except the control cell culture, for 7 days in one group and 14 days in one group. After the applications, genotoxic damage was scored with the comet assay technique and the groups were compared. Results: In both the budesonide and triamcinolone acetate groups, the comet scores at low and high doses, on the 7th and 14th days were found to be significantly higher in both cartilage and epithelial tissue than in the control group. Conclusion: The study results showed that budesonide and triamcinolone acetate lead to a significantly high rate of genotoxic damage in both epithelial tissue and cartilage tissue.Item Effects of Combined Visible and Infrared Light Rhinophototherapy in Patients With Allergic Rhinitis(2023) Koycu, Alper; Bas, Ceren; Musabak, Ugur H.; Erbek, Selim Sermed; Koca, Huseyin Samet; Babakurban, Seda Turkoglu; Bahcecitapar, Melike; https://orcid.org/0000-0003-1290-3509; 36266929; AAF-3650-2021Background Intranasal phototherapy offers an alternative treatment method for patients with allergic rhinitis who cannot benefit from intranasal corticosteroids and oral antihistamines. Different wavelengths have been tried with promising results. Objective In this present study, we aimed to investigate the effects of visible light-infrared light phototherapy on clinical improvements together with its cytologic effects in patients with allergic rhinitis. Methods Patients with confirmed allergic rhinitis were given a 4-week course of intranasal phototherapy treatment. Weekly symptom questionnaires were applied to monitor clinical effects. Nasal lavage specimens were obtained before the start and at the completion of the 4-week therapy. Fluorescence-activated cell sorting analyses of CD16(+), CD24(+), and CD 45(+) cells were performed. Statistical analyses are performed of weekly changes in symptoms and cell counts. Results CD45(+)CD16(high)CD24(+) neutrophil count in nasal lavages decreased significantly whereas CD45(+)CD16(dim/-)CD24(+) eosinophil counts significantly increased and CD45(+) granulocyte counts remained unchanged. Symptom scores including nasal itching, nasal discharge, nasal obstruction, sneezing, eye itching, throat itching, and ear itching all statistically decreased compared to baseline at the end of 4 weeks. Conclusion Four-week course of intranasal phototherapy with visible and infrared light leads to clinical improvement in allergic rhinitis patients.Item Immune and inflammatory genes possibly involved in the pathogenesis of severe COVID-19(2021) Beksac, Burcu; Dincer, Selin Akad; Avdullahi, Egzon; Yaman, Derya; Terzi, Yunus Kasim; Babakurban, Seda Turkoglu; Celik, Zerrin Yilmaz; Tasci, Canturk; Sahin, Feride IffetItem Investigation of Toll Like Receptor-7 Gene (TLR-7) Mutations in COVID-19 Patients(2021) Dincer, Selin Akad; Beksac, Burcu; Avdullahi, Egzon; Yaman, Derya; Terzi, Yunus Kasim; Babakurban, Seda Turkoglu; Celik, Zerrin Yilmaz; Tasci, Canturk; Sahin, Feride IffetItem Fractalkine (CX3CL1) and its receptor (CX3CR1) in children with hypertrophic adenoid and chronic otitis media with effusion(2020) Inan, Serhat; Babakurban, Seda Turkoglu; Erbek, Selim Sermed; Terzi, Yunus Kasim; Sahin, Feride Iffet; 0000-0001-7308-9673; 0000-0001-5067-4044; 0000-0003-4825-3499; 0000-0001-5612-9696; 0000-0001-8821-4481; AAC-7232-2020; AAI-8856-2021; AAJ-1407-2021; B-7604-2019; B-4372-2018Background: Adenoid hypertrophy (AH) is one of the possible causes of chronic inflammation in the middle ear. It has been suggested that CX3CL1 and its specific receptor (CX3CR1) could be related with the pathogenesis of some inflammatory diseases. The aim of the present study was to evaluate the role of CX3CL1 and CX3CR1 in the pathogenesis of AH with chronic otitis media with effusion (COME) in children. Materials and methods: Adenoid tissue samples were obtained from 91 pediatric patients and divided into two groups: adenoidectomy only for AH (n: 47) and adenoidectomy in conjunction with ventilation tube insertion for AH + COME (n: 44). Expression levels of CX3CL1 and CX3CR1 genes were compared. Results: Expression levels of CX3CL1 and CX3CR1 in hypertrophic adenoid tissue were not significantly different between the AH + COME and All only groups. Although no significant difference was detected in the expression of CX3CL1 in the adenoid samples, the expression of CX3CR1 was higher in children older than 48 months. Conclusions: When allergy, atopy and chronic adenoiditis does not exist to obstructive adenoid hypertrophy, inflammatory fractalkine chemokine expression levels in adenoid tissue was not observed to be increased in children with COME.