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Öğe Association of ring box-1 protein overexpression with clinicopathologic prognostic parameters in prostate carcinoma(ELSEVIER SCIENCE INC, 2016) Celik, Zeliha Esin; Kaynar, Mehmet; Dobur, Fatma; Karabagli, Pinar; Goktas, SerdarAim: To determine the expression of Ring Box-1 (RBX-1) protein in prostate carcinoma (PCa) and the association between RBX-1 expression and clinicopathologic prognostic parameters. Material and methods: Relevant data such as age, preoperative serum PSA values, and tumor stage were obtained from 51 patients' with PCa record who underwent radical prostatectomy between January 2010 and March 2014. Hematoxylin-eosin stained pathology slides were evaluated by 2 pathologists blinded to patients' data in order to determine Gleason grade groups, tumor stage, tumor volume, capsule invasion, lymphovascular invasion, perineural invasion, and seminal vesicle invasion Immunoreactivity scoring system (IRS) was used to determine RBX-1 expressions. Results: A statistically significant difference was determined in terms of RBX-1 expression between non tumoral prostate tissue, high grade prostatic intraepithelial neoplasia (H-PIN) and carcinoma foci (P = 0.001). RBX-1 expression in the Gleason pattern 4 was higher than the Gleason pattern 3 and H-PIN foci as well as non tumoral prostate tissue. Likewise, in cases with PSA levels of > 10.1 ng/ml, RBX-1 expression was higher than those <= 10 ng/ml. Moreover, RBX-1 expression of stage II cases was higher than stage I (P = 0.019), RBX-1 expression of stage III higher than stage I cases (P = 0.044). However, RBX-1 expression was not related with clinicopathologic parameters including patient age, tumor volume, lymphovascular invasion, perineural invasion, seminal vesicle invasion, or capsule invasion. Conclusions: RBX-1 protein is overexpressed in PCa and associated with clinicopathologic prognostic parameters related with biological potential of the aggressive disease. Further studies of basic and molecular science are needed to reveal clinical and therapeutic implications of RBX-1 in PCa. (C) 2016 Elsevier Inc. All rights reserved.Öğe The Correlation between the Level of Doxorubicin-Induced Cardiac Damage and Serum Soluble Fas in an Experimental Rat Model(WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2018) Kose, Dogan; Ozdemir, Hulya; Celik, Zeliha Esin; Unlu, Ali; Artac, Hasibe; Koksal, YavuzAim: This study was planned to research the relationship between doxorubicin cardiomyopathy and the soluble Fas (sFas) level. Materials and Methods: Two groups of rats were included in the study. The control group was given physiological saline, while the study group was given doxorubicin. The rats, whose blood samples were taken weekly, were sacrificed and their myocardial tissues were removed. The tissues were examined in terms of morphological changes and surface Fas expression, while the blood samples were examined in terms of sFas level. Results: In the study group, the sFas levels at 2nd-9th weeks were higher than those found at 1st week before administrating the drug, and the increase at 2nd-7th weeks was meaningful. In addition, sFas levels were gradually increased each week during 1st-5th weeks when compared to the values of a previous week, and the increase during the first 4 weeks was meaningful. After the 5th week, the values gradually decreased each week. The mean values of the study group at 1st-8th weeks were higher than those of the control group, and the increases at 2nd-8th weeks were meaningful. The severe forms of interfibrillar hemorrhage, vascular dilatation, myocardial necrosis, inflammatory infiltration, and splitting of muscle fibers occurred with 15, 15, 17.5, 20, and 22.5 mg/kg dose of medicine, respectively. Conclusions: As the tissue injury increased, the increasing cell-surface Fas expression and sFas plasma level at the acute phase of doxorubicin-related cardiotoxicity decreased. The sFas level determined at acute phase may be helpful in predicting the existing injuries and possible late-term problems.Öğe Effects of Prednisolone, l-Asparaginase, Gemfibrozil, and Combinations of These Elements on Mice Lipid Profile, Liver, and Pancreas(LIPPINCOTT WILLIAMS & WILKINS, 2016) Kose, Dogan; Tarakci, Nuriye; Celik, Zeliha Esin; Vatansev, Husamettin; Cimbek, Emine Ayca; Ugras, Serdar; Sen, YasarThe aim of this study is to determine the effects of l-asparaginase (l-ASP), corticosteroids (CSs), and antilipidemics, separately and in combination, on the lipid profiles and the liver and pancreas histology in mice. This study included 8 groups of 7 mice each. Before any drug administration, serum samples were taken from all of the mice. Then, normal saline was applied to the control group, and a medication or combination of medications was applied to the other groups. Levels of triglycerides, cholesterol (COL), and high-density lipoprotein (HDL) and low-density lipoprotein (LDL) were determined, and the livers and pancreases were evaluated histologically at the end of the study. Triglycerides increased significantly in the CS-only and the l-ASP-only groups, COL increased significantly in the CS-only group, and HDL increased significantly in the CS-only and the antilipidemic-only groups. LDL was significantly lower in the CS-only and the l-ASP-only groups. CSs and l-ASP were significantly effective in liver necrosis, l-ASP was significantly effective in liver balloon degeneration, and CS were significantly effective in pancreas vacuolization. Triglyceride measurement is recommended before/during CS and/or l-ASP treatment. Starting with an antilipidemic agent can be considered to avoid possible complications in patients with significantly high rates. Indicators of a possible liver or pancreas injury should also be considered.Öğe Fine needle aspiration biopsy of thyroid nodules: cytologic and histopathologic correlation of 1096 patients(E-CENTURY PUBLISHING CORP, 2015) Ugurluoglu, Ceyhan; Dobur, Fatma; Karabagli, Pinar; Celik, Zeliha EsinVia routinely used thyroid function tests, scintigraphy and ultrasonography (USG), important information is obtained in the clinical and diagnostic practice for thyroid nodules. However, the distinction between benign and malignant lesions cannot precisely be performed with these tests. Thyroid fine needle aspiration biopsy (FNAB) is considered the most reliable diagnostic method in the differentiation between benign and malignant thyroid nodules. It has recently been likely to perform aspiration from deeper nodules via the implemention of FNAB along with USG. Today, in cytopathological examination of thyroid FNAB, standardized Bethesda System for Reporting Thyroid Cytopathology (BSRTC) system is used. Here, FNAB was performed in 1096 patients with thyroid nodules in the Medical School of Selcuk University between January 2009 and July 2014. Patients consisted of 919 women and 177 men between 12 and 87 years of age. Evaluated via BSRTC, the results were classified as unsatisfactory, benign, atypia (or follicular lesions) of undetermined significance (AUS), follicular neoplasm or lesions suspicious for follicular neoplasm (FN), suspected malignant and malignant. After FNAB, 183 patients were operated and evaluated histopathologically. Histological malignancy rates of the categories were as follows: 16% (5), 15% (6) 14% (1) 60% (9), 72% (18) and 97% (63), respectively. In our study, we aimed to compare FNAB results of thyroid nodules with histopathology results after thyroidectomy and to show the sensitivity and specificity of FNAB technique to be higher in the follow-up and diagnosis of thyroid lesions. Given the malignancy detection rate in the follow-up of patients whose cytology was reported as inadequate, we also consider follow-ups are important in these patients.Öğe Incidentally Detected Kaposi Sarcoma of Adrenal Gland with Anaplastic Features in an HIV Negative Patient(HINDAWI LTD, 2016) Celik, Zeliha Esin; Celik, Murat; Sen, Erdem; Cebeci, Hakan; Ata, Ozlem; Yavas, CagdasKaposi sarcoma (KS), a vascular tumor caused by infection with human herpesvirus 8 (HHV8), is a systemic disease that can present with cutaneous lesions with or without visceral involvement. Very few cases of KS, most of which were associated with AIDS, have been reported in the adrenal gland. Anaplastic transformation of KS is a rare clinical presentation known as an aggressive disease with local recurrence andmetastatic potential. We report here a 47-year-oldHIV negativemale presented with extra-adrenal symptoms and had an incidentally detected anaplastic adrenalKS exhibited aggressive clinical course. To the best of our knowledge, this is the first case of anaplastic primary adrenal KS withoutmucocutaneous involvement but subsequently developed other side adrenal metastases in an HIV negative patient.Öğe Myelomeningoceles and Meningoceles: A Clinicopathologic Study of 43 Cases(JOURNAL NEUROLOGICAL SCIENCES, 2014) Karabagli, Pinar; Gurcan, Tugba; Celik, Zeliha Esin; Karabagli, HakanObjective: The purpose of the study both meningocele and myelomeningocele reviewing the clinical and pathological findings as well as to discuss the pathological diagnosis. Material and methods: Meningocel and myelomeningocele were retrived from the pathology files. Forty three cases with detailed clinical and radiological data were selected. Masson's trichrome performed on original sections from paraffin blocks. All sections from each case were reviewed. Results: There were 34 cases of myelomeningocele, 9 cases of meningocele. F/M ratio was 1.2 to 1. The age range of patients were from newborn to 4 months. 90% of cases were in the lumbosacral region. 31 cases of myelomeningoceles, and 3 cases of meningoceles were hydrocephalus. Chiari II malformation was seen in 88% of myelomeningocels and in 22% of meningoceles. Three patients had a clubfoot deformity. Microscopically, epithelial changes included ulceration, loss of appendages. Mesodermal findings included fibrosis (90% of cases), adipose tissue (62%), hypertrophic smooth muscle (18%), skeletal muscle (4%) and increased numbers of blood vessels (79%). Subepidermal calcification was noted in 2 cases. Neuroectodermal features, neuropil-like matrix and ependymal lining were noted in 34 and 15 cases respectively. Nerve fibers were identified varied from easily identifiable large myelinated nerve trunks to slightly increased numbers of fibers in 83% of the cases. Conclusion: Both clinical and pathological differences were seen among myelomeningoceles. These malformations involve ectoderm, neuroectoderm, and mesoderm. Definition of the pathological aspects of dysraphism will potentiate the understanding of these anomalies.Öğe The relation between Ring Box-1 protein overexpression and tumor grade and stage in bladder urothelial cell carcinoma(IOS PRESS, 2017) Celik, Zeliha Esin; Kaynar, Mehmet; Karabagli, Pinar; Gergerlioglu, Nursadan; Goktas, SerdarBACKGROUND: Ring Box Protein-1 (RBX-1), a component of SCF E3 ubiquitin ligases, has a crucial role in bladder urothelial cell carcinoma (UCC) carcinogenesis and progression. OBJECTIVES: In the present study, it is aimed to determine the expression of RBX-1 protein in bladder UCC and the association between tumor grade, stage and RBX-1 expression. METHODS: Ninety UCC samples and 20 samples containing foci of normal bladder urothelium were recruited and analyzed immunohistochemically in terms of RBX-1 expression. Immuno-reactivity scoring system (IRS) was used to determine RBX-1 expression levels. RESULTS: RBX-1 overexpression was associated with high tumor grade (p = 0.001) and advanced stage (p = 0.001). pT1 tumors showed higher RBX-1 expression than pTa tumors. pT2 tumors showed not only higher expression than pTa tumors but also higher expression than the total of pTa and pT1 groups combined. There was no statistically significant relation between RBX-1 expression and patient gender (p = 0.116) or age (p = 0.191). CONCLUSIONS: In bladder UCC, RBX-1 overexpression is associated with high tumor grade and advanced stage and represents biological potential of invasiveness and aggressive disease. Results of the present study have to be supported with further studies to reveal clinical and therapeutic implications of RBX-1 overexpression in bladder UCC.
