Yusuf Karakas

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INTRODUCTION Patients with chronic kidney disease (CKD) commonly experience 25-hydroxyvitamin D3 (25-OH-D3) deficiency, and these patients have a higher incidence of cardiovascular diseases (CVDs) due to endothelial dysfunction (ED). The aim of our study was to investigate the effect of 25-OH-D3 deficiency and its supplementation on ED in patients with CKD.(More)
PURPOSE This study aimed to reveal the habits of using internet by cancer patients and their relatives to access health-related information and services in Turkey. METHODS An 18-item questionnaire survey was applied in cancer patients and their relatives. RESULTS A total of 1106 patients (male, 37.3%, and female, 62.7%) and their relatives were included(More)
A 40-year-old male patient presented with increasing serum levels of calcitonin and CEA. He underwent potential curative surgery for medullary thyroid carcinoma, 3 years ago and then 7 months later he had metastasectomy and cervical lymph node dissection for recurrent disease. On admission he had multiple metastatic skin nodules on the chest wall and(More)
PURPOSE The clinical significance of synchronous bilateral breast cancer (SBBC) is unclear and its influence on prognosis is controversial. Our study objective was to determine the epidemiological features, tumor characteristics, and prognosis of SBBC in comparison with those of unilateral breast cancer (UBC). METHODS A total of 3675 breast cancer(More)
A 55-year-old man presented with oral mucosal ulcers, blackening of both hands, and hyperpigmentation on axillary, anal, and inguinal regions for the last 3 months, which were all progressive. The patient was referred to the oncology department with the diagnosis of acanthosis nigricans for investigation of an underlying malignancy. He was a smoker. A(More)
PURPOSE Eribulin is a non-taxane microtubule inhibitor, which can be used after anthracycline and taxane treatment in patients with metastatic breast cancer (MBC). The purpose of this study was to investigate the efficacy and safety of eribulin monotherapy in heavily pretreated MBC patients. METHODS In this single-center trial, a total of 66 MBC patients(More)