TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/4
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Article A Preliminary Study of Possible Fibrotic Role of Meprin Metalloproteases in Scleroderma Patients(Turkish League Against Rheumatism (TLAR), 2021-12-31) Avşar, Aydan Köken; Merih Birlik, A.; Koçak, Ayşe; Harmancı, Duygu; Akdoğan, Gül; Birlik, Merih; Birlik, A. Merih; Güner, Gül AkdoganObjectives: This study aims to investigate the possible fibrotic role of meprin metalloproteases and possible fibrotic effects of activator protein-1 (AP-1) in scleroderma patients. Patients and methods: Between April 2018 and April 2019, a total of 85 scleroderma patients (9 males, 76 females; mean age: 54.9 +/- 12.1 years; range, 22 to 80 years) who met the 2013 American College of Rheumatology/European League Against Rheumatism criteria and 80 healthy control individuals (10 males, 70 females; mean age 42.9 +/- 10.2 years; range, 19 to 65 years) were included. Patients' data and blood samples were collected. Messenger ribonucleic acid expressions of interleukin (IL)-6, AP-1 subunits, and tumor necrosis factor-alpha (TNF-alpha) were analyzed by quantitative real-time polymerase chain reaction. Serum meprin alpha and beta protein levels were analyzed using the enzyme-linked immunosorbent assay. Results: Meprin alpha and meprin beta protein levels increased in scleroderma patients. The AP-1 subunits (c-Fos, c-Jun), IL-6, and TNF-alpha increased in scleroderma patients, compared to controls. Conclusion: Our results provide evidence showing that increased meprins levels may be related to AP-1 levels and increased meprins levels may responsible for increased inflammatory TNF-alpha and IL-6 levels. All these data suggest meprins as promising therapeutic targets to restore the balance between inflammation and extracellular matrix deposition in scleroderma.Article Expressions of the Satellite Repeat Hsat5 and Transposable Elements Are Implicated in Disease Progression and Survival in Glioma(Tubitak Scientific & Technological Research Council Turkey, 2024-08-23) Köse, Sıla Naz; Yaraş, Tutku; Bursalı, Ahmet; Oktay, Yavuz; Yandım, Cihangir; Karakulah, GökhanThe glioma genome encompasses a complex array of dysregulatory events, presenting a formidable challenge in managing this devastating disease. Despite the widespread distribution of repeat and transposable elements across the human genome, their involvement in glioma's molecular pathology and patient survival remains largely unexplored. In this study, we aimed to characterize the links between the expressions of repeat/transposable elements with disease progression and survival in glioma patients. Hence, we analyzed the expression levels of satellite repeats and transposons along with genes in low-grade glioma (LGG) and high-grade glioma (HGG). Endogenous transposable elements LTR5 and HERV_a-int exhibited higher expression in HGG patients, along with immune response-related genes. Altogether, 16 transposable elements were associated with slower progression of disease in LGG patients. Conversely, 22 transposons and the HSAT5 satellite repeat were linked to a shorter event-free survival in HGG patients. Intriguingly, our weighted gene coexpression network analysis (WGCNA) disclosed that the HSAT5 satellite repeat resided in the same module network with genes implicated in chromosome segregation and nuclear division; potentially hinting at its contribution to disease pathogenesis. Collectively, we report for the first time that repeat and/or transposon expression could be related to disease progression and survival in glioma. The expressions of these elements seem to exert a protective effect during LGG-to-HGG progression, whereas they could have a detrimental impact once HGG is established. The results presented herein could serve as a foundation for further experimental work aimed at elucidating the molecular regulation of glioma genome.Article Concurrent Diagnosis of Sjogren’s Syndrome and Polycthemia Vera: a Rare Co-Existence(2023-12-17) Ünal, Serkan; Kocaer, Sinem BurcuThis case report explores the unprecedented concurrent diagnosis of Sjogren’s syndrome (pSS) and polycythemia vera (PV) in a 62-year-old woman presenting with erythrocytosis, classic pSS symptoms, and a positive JAK2-V617F mutation. While autoimmune diseases and hematological malignancies frequently coexist, the combination of PV and pSS has not been previously documented. Despite recurrent phlebotomies for PV, the patient experienced persistent symptoms and elevated inflammatory markers. The case underscores the complexity of managing rare coexisting conditions, emphasizing the importance of considering a broad spectrum of hematological malignancies in primary SS patients. The patient is currently receiving hydroxyurea and hydroxychloroquine with regular follow-ups, shedding light on the challenges associated with the treatment of such unique clinical scenarios. This report contributes to the medical literature by expanding our understanding of potential associations between autoimmune disorders and hematological malignancies beyond conventional patterns.Article Demir Yükü Artmış Karaciğerde İnce İğne Aspirasyon Sitolojisi (iias) ve Tru-cut Biyopsisi: Deneysel Bir Çalışma(2023-01-02) Adalı, Yasemen; Eroğlu, Hüseyin Avni; Makav, Mustafa; Karayol, Sunay Sibel; Fındık Güvendi, Gülname; Gök, Mustafa; Guvendi, Gulname FindikAmaç: İnce iğne aspirasyon sitolojisi (İİAS) tru-cut biyopsiye göre daha güvenli, basit, hızlı ve uygun maliyetlidir ve hasta uyumu genellikle daha iyidir. Birçok organda kullanılan İİAS’nin karaciğerdeki parankimal hastalıklarda kullanımına ilişkin fazla veri yoktur. Bu nedenle bu çalışmada İİAS’nin demir birikimini ve karaciğer hasarını göstermedeki faydası değerlendirilmiştir. Yöntem: Çalışmada 2 kontrol grubu yer aldı. Çalışma sonunda herhangi bir uygulama yapılmayan bu gruplardan İİAS ve tru-cut biyopsi örnekleri alındı. Yirmi sekiz gün süreyle intraperitoneal demir dekstran (88 mg/kg) verilerek demir yüklenmesi oluşturulduktan sonra çalışma gruplarına İİAS ve tru-cut biyopsi işlemleri de yapıldı. Preparatlarda hepatosit hasarı, enflamasyon ve demir birikimi histopatolojik olarak değerlendirildi. Hepatektomi materyaline göre her iki yöntemin duyarlılığı, özgüllüğü, pozitif ve negatif prediktifliği ve tanısal doğruluğu hesaplandı. Bulgular: Hepatosit hasarında; sensitivite (%60), tanısal doğruluk (%66,7) ve negatif öngörü (%50) tru-cut grubunda anlamlı olarak daha yüksek bulundu. Enflamasyonun değerlendirilmesinde yöntemlerin birbirine üstün olmadığı ve İİAS’nin demir birikiminde %83,3 duyarlılık ve tanısal doğrulukla tru-cut biyopsi oranlarına (%100) neredeyse yaklaştığı görüldü. Sonuç: Demire bağlı karaciğer hasarında altın standart doku incelemesi olmalı, bu nedenle tru-cut biyopsi ilk seçenek olmalıdır. Ancak mevcut çalışma sonuçlarına dayanarak tru-cut biyopsinin kullanılamadığı kanamaya yatkınlık, cerrahi erişimin mümkün olmaması, eşlik eden farklı hastalıkların varlığı ya da hasta oryantasyonu ve kooperasyonunun zayıf olduğu durumlarda İİAS’nin daha invaziv seçeneklere göre tercih edilebileceği önerilmektedir.Article The first uniportal VATS sleeve lobectomy in Türkiye: A case report(2024) Hakkı ULUTAŞ; Gülçek, İlham; Kalkan, Muhammed; Ulutas, HakkıIn recent years, video-assisted thoracic surgery (VATS) has become the gold standard approach in the surgical treatment of early-stage non-small cell lung cancer. Especially in cases of central tumors, sleeve lobectomies that preserve parenchyma and respiratory reserves are performed instead of pneumonectomies by experienced clinics. Here, we present the first case of uniportal VATS right bronchial sleeve upper lobectomy for right main bronchial invasion in Turkey, which was successfully performed in August 2022. A patient diagnosed with laryngeal carcinoma who had been in remission for 5 years complained of a cough. Computed thoracic tomography showed hilar peribronchial thickening and an endobronchial lesion (EBL) extending from the right upper lobe bronchus to the main bronchus, almost completely obstructing the upper lobe bronchus. Bronchoscopy revealed that the right upper lobe entrance was obstructed with EBL, and its distance to the carina was 1.6 cm. Bronchoscopic biopsy revealed squamous cell carcinoma. The thorax was entered through an incision of approximately 3 cm in the right fifth intercostal space. First, the right upper lobe pulmonary arteries and superior pulmonary vein were dissected and cut. The main bronchus was divided until the intermediate bronchus. With the help of an endoscissor, the main and intermediate bronchus were incised with appropriate surgical margins, and the lobectomy material was removed. Both macroscopic appearance and frozen and microscopic main and intermediate bronchus surgical margin tumor negativity were confirmed. One suture was passed through the lateral cartilage from the inside out, and the needle was fixed to the posterior pleura. Membranous and cartilage parts were continuously anastomosed with a double-needle 3/0 prolene suture at 2–3 mm intervals. Pathological evaluation confirmed squamous cell carcinoma with a tumor diameter of 1.7 cm, hilar 1/11 lymph node metastasis, and negative surgical margin. Adhering to oncologic principles, sleeve resections, which are difficult even with the currently known open techniques, can be performed effectively and safely with uniportal VATS in experienced centers.Article Chebyshev Polynomial Solution for the Sir Model of Covid 19(2023-12-31) Özdek, DemetIn this study, we deal with solving numerically initial value problem of a mathematical model of COVID-19 pandemic in Turkey. This model is a SIR model consisting of a nonlinear system of differential equations. In order to solve these equations, a collocation approach based on the Chebyshev polynomials is used. Chebyshev polynomials are orthonormal polynomials and the orthonormality reduces the computation cost of the method as an advantage. Another advantage is that the present method does not require any discretization of the domain. So the method is easy to implement. The main idea of the method is to convert the model to a system of nonlinear algebraic equations. For this we write the approximate solution of the system and its first derivative as the truncated series of Chebyshev polynomials with unknown coefficients in matrix forms and then utilizing the collocation points, the SIR model is converted to a system of the nonlinear equations. The obtained system is solved for the unknown coefficients of the assumed Chebyshev polynomial solution by MATLAB, and so the approximate solution is obtained. In order to check the robustness of the method, residual error of the solution is reviewed. The results show that the method is efficient and accurate.Letter Citation - WoS: 1Citation - Scopus: 1About The Article Titled “a Different Scintigraphic Perspective On The Systolic Function Of The Left Ventricle-1” [“sol Ventrikül Sistolik Fonksiyonuna Sintigrafik Olarak Farklı Bir Bakış Açısı-1” Başlıklı Makale Hakkında](Galenos Publishing House, 2024-02-23) Taşçı, Cengiz; Tascs, Cengiz[No abstract available]Article Citation - WoS: 7Citation - Scopus: 7Effectiveness of a Program To Raise Awareness About Pneumococcal Vaccination Among Physicians and Patients With Chronic Respiratory Diseases: a Multicenter Cohort Study(AVES, 2024-08-27) Karakurt, Z.; Yalnız, E.; Altın, S.; Oruç, Ö.; Uslu, Ö.; Veske, N.Ş.; Kılınç, O.; Sayıner, Abdullah; Kul, Seval; Şimşek, NurdanOBJECTIVE: There is a need to increase patient and clinician awareness on the effectiveness of pneumococcal vaccination in at-risk groups. The aim of the study was to evaluate the effect of reminders for physicians and patients using the vaccination tracking system created in the hospital information management system (HIMS) on the vaccination rate, and the effect of pneumococcal vaccination on pneumonia-related hospitalization and mortality over a 12-month period. MATERIAL AND METHODS: This prospective observational cohort study was undertaken during a 2-year period in 3 tertiary care cen-ters. Patients were followed up for 12 months following vaccination, and hospital admissions and mortality were recorded via HIMS. During the campaign, HIMS transmitted pneumococcal immunization reminder messages in accordance with guideline recommendations to physicians’ computers and patients’ mobile phones. Educational posters on pneumococcal vaccination were posted in outpatient clinics. Regular seminars on the evidence for pneumococcal vaccination were organized. All patients who were hospitalized during the follow-up period for chronic obstructive pulmonary disease (COPD), asthma, lung cancer, or pneumonia were analyzed in relation to their vaccination history regarding clinical outcomes. RESULTS: A total of 29 530 patients were included in the study. During the study period, the annual vaccination rate increased by 74.4% and reached 4.8% in 3 hospitals (P = .001). The rates were 3.9% in patients older than 65 years without comorbidities and 5.2% in those with COPD and asthma (P = .002). In pneumococcal vaccine recipients, pneumonia-related hospital mortality was lower (relative risk (RR) = 0.19, CI 0.09-0.35, P < .001). CONCLUSION: It is possible to raise the rate of pneumococcal vaccination through awareness campaigns. Individuals with COPD and asthma are more willing to receive pneumococcal vaccination. Among patients hospitalized for pneumonia, prior pneumococcal vaccination is associated with lower mortality. © Author(s).Article Citation - WoS: 2Differences in the Differential Expression of Micrornas Between Patients With Familial Multiple Sclerosis and Those With Sporadic Multiple Sclerosis(Galenos Publ House, 2023-12-28) Güllüoğlu, Halil; Uysal, Hasan Armağan; Poyraz, Turan; Altun, Zekiye; Kaya, Derya; Özcelik, Pınar; İdiman, Egemen; Poyraz, TuranObjective: Multiple sclerosis (MS) is a heterogeneous disease with clinical and immunological features. Most MS cases occur sporadically, but a considerable proportion of patients have a family history of MS. The etiology and pathophysiology of MS remain unclear. Recent epidemiological and gene expression studies have indicated that dysregulation of microRNAs (miRNAs) may play a role in MS pathogenesis. This study aimed to evaluate the differential expression of miRNAs in sporadic MS (sMS) and familial MS Materials and Methods: This cross-section, single-center study was conducted in 20 FMS and 10 sMS patients and 8 healthy controls. The patients were in the remission. In total, 2,549 miRNA genes were screened in the blood mononuclear cells from the whole blood samples of MS patients depending on miRBase 21. Differential expression of miRNAs in MS patients was identified compared with the control group, and miRNAs with a fold change >= 2 were validated using reverse transcription-polymerase chain reaction. Differentially expressed miRNAs were then compared between FMS and sMS patients. Results: Initial findings showed that miR-5100 and hsa-miR-16-2-3p were increased and miR-432-3p was decreased in FMS compared with sMS, whereas miR-548-aa, hsa-miR-142-3p, and miR-451-b were increased in both sMS and FMS, but miR-548-v was increased only in sMS. Some miRNAs showed the same expression patterns in both groups. Conclusion: Differential expression of certain miRNAs may be a useful biomarker in the diagnosis of MS. This study showed that miRNAs may discriminate between FMS and sMS cases and MS subtypes, as indicated in earlier studies.Article Evaluation of Oxidative/Nitrosative Stress Parameters and Histopathological, Immunohistochemical Effects on Cisplatin-Induced Lung Toxicity in Rats(2023-12-01) Yıldız Dalgınlı, Kezban; Öztürkler, Melek; Beşeren, Hatice; Adalı, Yasemen; Atakişi, Onur; Dalgınlı, Kezban YıldızThe main focus of this study is to investigate oxidative/nitrosative stress and antioxidant effects and immunohistochemical effects in cisplatin-induced lung toxicity. In the study, 12 male Sprague Dawley rats, 2 months old, were divided into two groups: control (n=6) and cisplatin (n=6). Isotonic solution was administered to control and cisplatin 10 mg/kg single dose intraperitoneal to cisplatin group. Reducte glutathione (GSH), malondialdehyde (MDA) and nitric oxide (NO) levels were determined by spectrophotometricmethod in the lung tissues taken. Paraffin blocks were made from lung tissues and stained with hematoxylin-eosin (HE) staining. Immunohistochemically, p53, CD3, CD20, Bcl-2 ve Ki67 were evaluated. It was found that cisplatin administration alone had no effect on MDA and GSH values in the lung tissue of rats, and NO levels were significantly increased (P<0.005). In the histopathological evaluation of the lung tissue, congestion-bleeding findings, intense inflammation areas, lymphoid follicles around the bronchi and bronchioles were seen with HE staining. Concentric fibrous and fibrinous plugs consisting of blood-fibrin and inflammatory cells and fibroblasts in the airways were observed, with low- density edema between the alveoli. Reactive pan B cell markers CD20, T-cell marker CD3 in the interstitial component and desmin in sub-epithelial cells were stainedpositively by immunohistochemical staining, while reactive germinal centers Bcl-2 and p53 applied to the bronchioles and alveolarducts were immunohistochemically stained negative. In addition, low-intensity nuclear staining was found with Ki67 immunohistochemical staining.In conclusion, significant increase in NO level and immunohistochemically intense inflammation, lymphoid follicles, fibrous and fibrinous plugs are an expression of the onset of cisplatin-induced lung injury..