Person: ERTÜRK, ERDİNÇ
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Publication Association between p16(cdkn2a) c540g polymorphism and tumor behavior in prolactinoma: A single-center study(Spandidos Publ Ltd, 2014-07-01) Karkucak, Mutlu; Gül, Özen Öz; ÖZ GÜL, ÖZEN; Yakut, Tahsin; Sağ, Şebnem Özemri; ÖZEMRİ SAĞ, ŞEBNEM; Ersoy, Canan; ERSOY, CANAN; Tuncel, Ercan; Ertürk, Erdinç; ERTÜRK, ERDİNÇ; Cander, Soner; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji ve Metabolizma Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Genetik Anabilim Dalı.; AAJ-6536-2021; AAH-8861-2021; AAI-1005-2021; ABI-5648-2022; AAH-8355-2021Pituitary tumors usually originate as benign sporadic adenomas and develop into invasive and aggressive tumors such as prolactinomas, which are common functioning pituitary adenomas. The aim of the present study was to examine the association between the tumor behavior in prolactinomas and the p16(CDKN2A) gene polymorphism occurring at the 3'-untranslated region of exon 3 (C540G). A total of 104 patients with prolactinoma were included and assigned to two groups based on invasive vs. non-invasive tumor behavior. Ki67 indices were recorded according to histopathology results. Genotypic analysis of the p16( CDKN2A) C540G polymorphism was carried out using a modified polymerase chain reaction-restriction fragment length polymorphism assay. The corresponding frequencies for CC, CG and GG genotypes in non-invasive vs. invasive tumors were 61.5, 30.8, 7.7 and 64.1, 28.2, 7.7%, respectively ( not significant). The observed CG genotype frequency was higher compared with previous studies. In addition, the patients with giant adenomas or a high Ki67 index had a higher frequency of the CG genotype as compared with the other subgroups, although the differences were not significant (46.2 and 42.9%, respectively). In conclusion, a higher frequency of the C540G CG genotype of the CDKN2A gene was found among patients with prolactinoma in comparison with previous studies. These frequencies were also higher in the subgroups with elevated Ki67 or giant adenomas. Further studies are required to improve the definition of the role of the CG genotype in the development and progression of tumors in prolactinomas.Publication A rare cause of hypopituitarism: Pituitary tuberculosis(Aves, 2012-01-01) Gül, Özen Öz; Ertürk, Erdinç; Cander, Soner; Ünal, Oğuz Kaan; Hakyemez, Bahattin; İmamoğlu, Şazi; ÖZ GÜL, ÖZEN; ERTÜRK, ERDİNÇ; CANDER, SONER; Ünal, Oğuz Kaan; HAKYEMEZ, BAHATTİN; İmamoğlu, Şazi; Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji ve Metabolizma Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Radyoloji Anabilim Dalı.; AAI-1005-2021; AAI-2318-2021; AAJ-6536-2021; HUR-0563-2023; GGN-5983-2022; FCO-4676-2022Pituitary tuberculosis is a rare condition that can present with hypopituitarism even without any evidence of systemic tuberculosis and is easily confused with pituitary adenomas. Headache and hypopituitarism are the most common presenting symptoms. We report the case of pituitary tuberculosis in a 39-year-old male patient who presented with panhypopituitarism. Although it is rare and difficult to diagnose, pituitary tuberculosis should be considered in every nonfunctional sellar masses, especially in fairly small ones with unexpected hypopituitarism.Publication Etiology of hypopituitarism in tertiary care institutions in Turkish population: Analysis of 773 patients from pituitary study group database(Humana Press Inc, 2014-09-01) Tanrıverdi, F.; Dokmetas, H. S.; Kebapçı, N.; Kılıçlı, F.; Atmaca, H.; Yarman, S.; Ertorer, M. E.; Bayram, F.; Tugrul, A.; Culha, C.; Ç,akır, M.; Mert, M.; Aydın, H.; Taşkale, M.; Ersoz, N.; Cantürk, Zeynep; Anaforoğlu, I.; Özkaya, M.; Oruk, G.; Hekimsoy, Z.; Keleştimur, F.; Erbaş, T.; Erturk, E.; ERTÜRK, ERDİNÇ; Bursa Uludağ Üniversitesi/Tıp Fakültesi; AAJ-6536-2021Hypopituitarism in adult life is commonly acquired and the main causes are known as pituitary tumors and/or their treatments. Since there are new insights into the etiology of hypopituitarism and presence of differences in various populations, more studies regarding causes of hypopituitarism are needed to be done in different ethnic groups with sufficient number of patients. Therefore, we performed a multi-center database study in Turkish population investigating the etiology of hypopituitarism in 773 patients in tertiary care institutions. The study was designed and coordinated by the Pituitary Study Group of SEMT (The Society of Endocrinology and Metabolism of Turkey). Nineteen tertiary reference centers (14 university hospitals and 5 training hospitals) from the different regions of Turkey participated in the study. It is a cross-sectional database study, and the data were recorded for 18 months. We mainly classified the causes of hypopituitarism as pituitary tumors (due to direct effects of the pituitary tumors and/or their treatments), extra-pituitary tumors and non-tumoral causes. Mean age of 773 patients (49.8 % male, 50.2 % female) was 43.9 +/- 16.1 years (range 16-84 years). The most common etiology of pituitary dysfunction was due to non-tumoral causes (49.2 %) among all patients. However, when we analyze the causes according to gender, the most common etiology in males was pituitary tumors, but the most common etiology in females was non-tumoral causes. According to the subgroup analysis of the causes of hypopituitarism in all patients, the most common four causes of hypopituitarism which have frequencies over 10 % were as follows: nonsecretory pituitary adenomas, Sheehan's syndrome, lactotroph adenomas and idiopathic. With regard to the type of hormonal deficiencies; FSH/LH deficiency was the most common hormonal deficit (84.9 % of the patients). In 33.8 % of the patients, 4 anterior pituitary hormone deficiencies (FSH/LH, ACTH, TSH, and GH) were present. Among all patients, the most frequent cause of hypopituitarism was non-secretory pituitary adenomas. However, in female patients, present study clearly demonstrates that Sheehan's syndromeis still one of the most important causes of hypopituitarism in Turkish population. Further, population-based prospective studies need to be done to understand the prevalence and incidence of the causes of hypopituitarism in different countries.Publication Differences between atypical parathyroid tumors and parathyroid adenomas in patients with primary hyperparathyroidism(Springer India, 2023-09-29) Aydemir, Ensar; AYDOĞAN ÜNSAL, YASEMİN; ÖZ GÜL, ÖZEN; AYDEMİR, ENSAR; ATEŞ, COŞKUN; Ateş, Coşkun; CANDER, SONER; Cander, Soner; Saraydaroğlu, Özlem; SARAYDAROĞLU, ÖZLEM; Ersoy, Canan; ERSOY, CANAN; Ertürk, Erdinc; ERTÜRK, ERDİNÇ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0003-4300-2965; 0000-0003-4565-9848; 0000-0002-1332-4165; AAJ-6536-2021; AAB-6671-2022; AAA-7171-2022Atypical parathyroid tumor is a rare disease that can be challenging to distinguish from parathyroid adenoma. Atypical parathyroid tumor shows some laboratory and histopathological features with parathyroid cancer. This study attempts to compare clinical, laboratory, radiologic, and histopathological characteristics in atypical parathyroid tumor and parathyroid adenoma. This was a retrospective study based on the database of eighty-two subjects who underwent surgery for primary hyperparathyroidism at a tertiary referral center between 2010 and 2021. Forty-one patients with atypical parathyroid tumor were matched by age and gender to controls with parathyroid adenoma. Clinical, laboratory, radiologic, and characteristics were obtained from the hospital database. Forty-five (54.8%) of primary hyperparathyroidism patients were symptomatic, 36 (90%) had nephrolithiasis, 6 (15%) had fracture, and 3 (7.5%) had hypercalcemic crisis. Atypical parathyroid tumor patients present with significantly increased serum calcium, parathormone, and alkaline phosphatase levels (P < .001, all). No significant difference was observed in the results of bone mineral density, T-scores, and Z-scores. The size of adenoma was significantly greater in the atypical parathyroid tumor group (24 (8.8-70) mm vs. 12 (3.8-32) mm, P = 0.005). Our study revealed that increased preoperative serum calcium, parathormone, alkaline phosphatase concentrations, and parathyroid adenoma size on ultrasound may have predicted the atypical parathyroid tumor.Publication How the COVID-19 outbreak affected patients with diabetes mellitus?(Springer India, 2021-06-28) Şişman, Pınar; Polat, Irmak; Aydemir, Ensar; Karşı, Remzi; Gül, Özen Öz; Cander, Soner; Ersoy, Canan; Ertürk, Erdinç; AYDEMİR, ENSAR; ÖZ GÜL, ÖZEN; CANDER, SONER; ERSOY, CANAN; ERTÜRK, ERDİNÇ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji ve Metabolizma Anabilim Dalı.; 0000-0003-4300-2965 ; AAA-7171-2022 ; GBT-4320-2022 ; CJH-1319-2022 ; AAH-8861-2021 ; AAJ-6536-2021Background Global COVID-19 outbreak has been such a stressful experience for most of the people. Using a web-based cross-sectional study, we aimed to evaluate the acute stress response, depression, and anxiety in patients with diabetes mellitus (DM) during the COVID-19 pandemic, and to examine the effect of these psychiatric problems on diet habits and glycemic controls of patients. Methods This web-based survey of COVID-19 was sent to the patients through the Whatsapp platform. All participants reported their demographic data, diabetes-related information, changes in self-monitoring blood glucose measurements, physical parameters, and eating habits after COVID-19, then completed Hospital Anxiety and Depression Scale (HADS) and the Impact of Event Scale, Revised (IES-R) questionnaires which assessed acute stress sypmtoms, anxiety, and depression. Results Three hundred and four patients with DM [(141 type 1 DM (T1D) and 163 type 2 (T2D)] were included in the study. In our study, female gender, higher BMI and weight, decreased in financial income after outbreak, presence of diabetic complications and comorbid diseases (i.e., retinopathy, neuropathy, diabetic foot, hypertension, dyslipidemia), worsened glycemic levels, increased carbohydrate consumption, and snacking were associated with higher anxiety and depression scores. Depression was higher in patients with T2D and duration of illness was correlated with acute stress level. Conclusions It is important to be aware of the possibility of acute stress, depression, and anxiety after pandemic in patients with DM whose glycemic control is impaired. Psychological problems should not be ignored beyond physical inactivity and worsening eating habits.Publication An unusual case of adult-onset multi-systemic langerhans cell histiocytosis with perianal and incident thyroid involvement(Bioscientifica Ltd, 2017-02-01) Gül, Özen Öz; Şişman, Pınar; Cander, Soner; Gözden, Erdem; Kurt, Meral; Saraydaroğlu, Özlem; Kırdak, Turkay; Ersoy, Canan; Ertürk, Erdinç; ÖZ GÜL, ÖZEN; Şişman, Pınar; KURT, MERAL; CANDER, SONER; Gözden, Erdem; SARAYDAROĞLU, ÖZLEM; Kırdak, Turkay; ERSOY, CANAN; ERTÜRK, ERDİNÇ; Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji ve Metabolizma Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Hematoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Radyasyon Onkolojisi Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Anabilim Dalı.; AAI-1005-2021; DUS-9872-2022; HUR-0563-2023; EWL-5375-2022; AAA-3961-2020; AAH-9701-2021; CZX-7145-2022; AAH-8861-2021; AAJ-6536-2021Langerhans cell histiocytosis (LCH) is a rare sporadic disease characterized by histiocytic neoplastic infiltration of various organ systems and a wide spectrum of clinical manifestations, ranging from benign and self-limiting to lethal. Herein, we report a rare case of adult-onset multi-systemic LCH in a 36-year-old male patient with an initial perianal presentation and incidental finding of subsequent thyroid gland involvement in the follow-up period. The patient with a history of perianal LCH treated with surgical excision and local radiotherapy was referred to our Endocrinology Department upon detection of hypermetabolic nodular lesions in the left lateral lobe of thyroid gland on positron emission tomography-computed tomography (PET/CT)scan in the nineth month of follow-up. Current evaluation revealed euthyroid status, a hypoechoic solid lesion of 13 x 9 mm in size with irregular borders in the left thyroid lobe on thyroid USG and cytologic assessment of thyroid nodule. The patient was diagnosed with suspected, oncocytic lesion, Hashimoto thyroiditis or LCH. The patient underwent total thyroidectomy and pathological assessment confirmed the diagnosis of Langerhans cell histiocytosis. Assessments in the sixth month of postoperative follow-up revealed euthyroid status with no thyroid tissue remnants or pathological lymph node on thyroid USG. In view of the multifocal lesions indicating multi-system disease, a systemic chemotherapy protocol with combination of prednisone (PRED) and vinblastine (VBL) has been planned by the hematology department.Publication A close look at our cases with parathyroidectomy: 11 years of experience(Edizioni Minerva Medica, 2022-06-01) Saraydaroğlu, Özlem; SARAYDAROĞLU, ÖZLEM; ÖZŞEN, MİNE; Kirdak, Turkay; Narter, Selin; NARTER, SELİN; Ertürk, Erdinç; ERTÜRK, ERDİNÇ; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji Anabilim Dalı.; 0000-0002-5771-7649; AAJ-6536-2021BACKGROUND: Hyperparathyroidism is caused by parathyroid adenoma, hyperplasia or carcinoma. Parathyroid ade-nomas are the most common cause of parathyroid disease (85-88%) while atypical parathyroid adenomas and carcinomas are the least frequently seen parathyroid neoplasms which cause diagnostic difficulty. This series aims to identifiy lesions of parathyroidectomy specimens in our center and draw attention to borderline cases in between parathyroid adenoma and carcinoma.METHODS: The study included 638 parathyroidectomy materials diagnosed in our center between the years 2005 and 2016 and examined retrospectively, and all were included in the study.RESULTS: In all the 638 parathyroidectomy cases evaluated, 427 were diagnosed with adenoma, 117 with hyperplasia, 54 with normal parathyroid tissue, 32 with parathyroid neoplasm with uncertain malignant potential, 7 with parathyroid carcinoma and 1 with normal thyroid tissue.CONCLUSIONS: Parathyroid neoplasm with uncertain malignant potential defines cases with suspicious histopathological features of carcinoma but doesn't meet the criteria for parathyroid carcinoma. In our series, these cases are identified as atypical parathyroid adenoma. We present clinical and morphological features of our parathyroidectomy cases in an 11-year period and aim to raise concern about borderline cases in between adenoma and carcinoma. We think that such tumors, similar to the thyroid neoplasm classification, should be defined as parathyroid neoplasms with uncertain malignant potential and should be followed closely.Publication Frequency of atopy and allergic disorders among adults with type 1 diabetes mellitus in the southern marmara region of turkey(Springer, 2008-03-01) Duran, C.; Ediger, D.; Ersoy, C.; Coşkun, N. F.; Selimoğlu, H.; Ercan, I.; Kıyıcı, S.; Güçlü, M.; Sağlam, D. A.; Ertürk, E.; Tuncel, E.; İmamoğlu, S.; EDİGER, DANE; ERSOY, CANAN; Coşkun, N. Funda; Selimoğlu, Hadi; ERCAN, İLKER; Kıyıcı, Sinem; Güçlü, Metin; SAĞLAM, DİLEK; ERTÜRK, ERDİNÇ; Tuncel, Ercan; İMAMOĞLU, SÜLEYMAN; Uludağ Üniversitesi/Alerji Bilim Dalı/Göğüs Hastalıkları Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Endokrinoloji ve Metabolizma Bilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Alerji Anabilim Dalı/Göğüs Hastalıkları Bilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; 0000-0001-9560-180X; 0000-0002-2954-4293; 0000-0003-3604-8826; 0000-0002-2382-290X; 0000-0001-5082-9894; 0000-0003-3604-8826; AAJ-6536-2021; ABF-2367-2020; AAH-8861-2021; ABI-4847-2020; AAE-9142-2019; AAD-1271-2019; FWY-5938-2022; FGL-7924-2022; DNS-0810-2022; EBN-7188-2022; DEA-5443-2022Aim: Autoimmune disorders are considered to be associated with a Th1 immune response whereas allergic diseases with a Th2 response. Studies mainly per-Formed on children revealed conflicting results regarding the association of atopy/allergic disease and autoimmune disorders. Therefore, we aimed to investigate the prevalence of allergic diseases in adult Type 1 diabetic patients. Methods: Eighty-nine Type 1 diabetic patients and 64 controls were enrolled into the study. Skin-prick test and European Community Respiratory Health Survey questionnaire were performed on all cases. Patients who gave at least one positive answer to questions about asthma in the questionnaire underwent pulmonary function test and methacholine challenge test. Results: Patients' mean age were similar in diabetic patients and controls (28.2 +/- 8.9 and 28.1 +/- 5.2 yr; respectively). In skin-prick test, the rate Of Positive response to at least one allergen was not significantly different in diabetes (29.2%) and in the control group (31.3%). In European Community Respiratory Health Survey questionnaire, diabetic patients waked up by an attack of cough more than controls did. The rate of physician-diagnosed asthma was similar in both groups. There was no difference between the 2 groups based on the answers of other questions about asthma and other allergic diseases such as allergic rhinitis, eczema, and drug allergy. Conclusion: We found that atopy frequencies were similar in an adult population of Type 1 diabetic patients and controls. Although asthmatic symptom prevalence is increased in diabetic patients, the incidence of current asthma was similar in both groups.Publication Evaluation of upper gastrointestinal system in acromegaly(Masson Editeur, 2019-09-01) Şişman, Pınar; Pekgöz, Murat; Bayrakçı, Ismail; Şişman, Mete; Cander, Soner; CANDER, SONER; Gül, Özen Öz; ÖZ GÜL, ÖZEN; Ertürk, Erdinç; ERTÜRK, ERDİNÇ; Ersoy, Canan; ERSOY, CANAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi; AAH-8861-2021; AAI-1005-2021; AAJ-6536-2021Purpose. - Acromegaly causes multiple comorbidities, including gastrointestinal disorders. The present study evaluated the frequency of hiatal hernia and other upper gastrointestinal pathologies in patients with acromegaly, given that visceromegaly and reduced nitric oxide levels in acromegaly may impact diaphragm and lower esophageal sphincter function and thus possibly the development of hiatal hernia.Methods. - Thirty-nine acromegaly patients followed our center for the previous 6 months were recruited. Upper gastrointestinal endoscopy was performed once in all patients to evaluate hiatal hernia, esophagitis, gastroduodenitis and ulcer.Results. - Twenty-three patients were male and 16 female. Upper gastrointestinal endoscopy found hiatal hernia, esophagitis and gastroduodenitis or gastric ulcer in 3 (7.6%), 2 (1.7%) and 31 (79.4%) patients, respectively. Pathologic examination of gastric antrum biopsy found intestinal metaplasia in 12 (30.7%) patients, and Helicobacter pylori was positive in 13 (33.3%). There were no significant correlations between age, gender, disease duration or preoperative adenoma size on the one hand and hiatal hernia or other endoscopic findings on the other. Similarly, neither surgical success nor recurrence was associated with endoscopic findings.Conclusions. - The study showed that prevalence of gastritis, duodenitis, peptic ulcer and intestinal metaplasia is higher and prevalence of hiatal hernia lower in acromegaly patients than in the healthy population. Various unknown disease-related pathophysiological conditions may play a role; there is a need for further studies.Publication Evaluation of treatment satisfaction in patients with type 1 diabetes using CSII and MDI(Mary Ann Liebert Inc, 2013-02-01) Cander, Soner; Gül, Özen Öz; Deligönul, Adem; Ersoy, Canan; Ertürk, Erdinç; Tuncel, Ercan; CANDER, SONER; DELİGÖNÜL, ADEM; ERSOY, CANAN; ERTÜRK, ERDİNÇ; Tuncel, Ercan; Uludağ Üniversitesi/Tıp Fakültesi; AAH-8861-2021; AAJ-6536-2021; CJH-1319-2022; JHC-1731-2023; EBN-7188-2022