Ayşen Aydoğan

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BACKGROUND & AIMS Proprotein convertase 1/3 (PC1/3) deficiency, an autosomal-recessive disorder caused by rare mutations in the proprotein convertase subtilisin/kexin type 1 (PCSK1) gene, has been associated with obesity, severe malabsorptive diarrhea, and certain endocrine abnormalities. Common variants in PCSK1 also have been associated with obesity in(More)
A cross-sectional method was used to study a group of 400 high school students in Kocaeli, Turkey, aged 14 to 16 years, identified among 17,812 high school students. Students from 10 high schools were selected using a random sampling method. Whole blood counts were performed as a screening test for anemia. Serum ferritin levels and, when necessary,(More)
An 11-month-old female infant underwent living-donor liver transplantation for secondary biliary cirrhosis 8 months after Kasai operation. The portal vein was hypoplastic, and its diameter was only 4 mm at the level of the splenomesenteric confluence. End-to-end anastomosis of the recipient suprarenal vena cava to the graft portal vein (a left lateral(More)
Primary gastric adenocarcinoma is extremely rare in children, and accounts for 0.05% of all gastrointestinal malignancies during childhood. The initial symptoms of epigastric pain, feeling of fullness, belching, and loss of appetite are non-specific and misleading. Nausea, vomiting and weight loss may accompany, which also complicate reaching a prompt(More)
The purpose of this study was (1) to demonstrate whether peripheral blood leukocytosis accompanies first afebrile seizures without bacterial infection, (2) to investigate the duration of leukocytosis, and (3) to assess the relationship between peripheral blood leukocytosis and seizure characteristics. Complete blood count was routinely obtained from all the(More)
The neoplastic change in patients with Crohn's disease is usually seen in the form of adenocarcinoma. Primary gastrointestinal lymphoma complicating chronic inflammatory bowel diseases is thought to be uncommon. This report describes a case of gastrointestinal lymphoma in a 12-year-old boy with Crohn's disease of one-year duration that initially manifested(More)
Differential diagnosis between tuberculous peritonitis and peritonitis carcinomatosis is extremely difficult in patients with ascites, peritoneal implants and elevated CA 125 level. A 16-year-old girl presented with abdominal distention, intermittent fever and weight loss. Physical examination and radiologic studies revealed massive ascites, generalized(More)
A 3-year-old female toddler was referred to our pediatric emergency unit with a 2-week history of fatigue, anorexia, progressive pallor, and vomiting. Medical history showed that iron deficiency anemia was diagnosed one year before and oral iron-sulfate was given. She also had a one year history of intermittent vomiting. Her diet seemed adequate in(More)
The aim of this study was to investigate whether the non-invasive serum marker FibroTest-ActiTest (FT-AT) reliably predicts the histological stage of fibrosis and/or activity, and decreases the need for a liver biopsy. Twenty-five children with naïve chronic hepatitis B were analyzed for haptoglobin, alpha2-macroglobulin, apolipoprotein A1, bilirubin,(More)