Publications by authors named "Karakoyun M"

Background: Cryptococcus neoformans causes cryptococcosis, primarily affecting immunocompromised individuals, including solid-organ transplant recipients, and, less frequently, immunocompetent people.

Case: A 15-year-old male with congenital hepatic fibrosis, portal hypertension, and cirrhosis underwent orthotopic liver transplantation. He received perioperative antimicrobial and antifungal prophylaxis and continued immunosuppressive treatment.

View Article and Find Full Text PDF

Objectives: The influence of advancing fibrosis on graft survival in the context of pediatric liver transplantation accentuates the critical role of protocol-driven liver biopsies, a practice adopted by numerous medical centers. Consequently, the exigency for noninvasive methodologies to assess graft fibrosis assumes heightened importance when conventional clinical and laboratory parameters fail to reveal signs of liver damage.

Methods: This study aimed to assess the reliability of transient elastography (TE) in pediatric liver transplant recipients to detect graft fibrosis and compare the results of TE in patients who underwent biopsy.

View Article and Find Full Text PDF
Article Synopsis
  • Dysmorphologists face challenges due to the diverse phenotypic variability of human faces, particularly when using Next-Generation Phenotyping (NGP) tools, which are often trained on limited data.
  • To address this, the GestaltMatcher Database (GMDB) was created, compiling over 10,980 facial images from various global populations, significantly improving the representation of underrepresented ancestries, especially African and Asian patients.
  • The study found that incorporating data from non-European patients enhanced NGP accuracy by over 11% without compromising performance for European patients, highlighting the importance of diverse datasets in identifying genetic disorders.
View Article and Find Full Text PDF

Background: Congenital sucrase-isomaltase deficiency (CSID) is a rare inherited carbohydrate malabsorption disorder caused by () gene variants. In CSID, an autosomal recessively inherited disease, symptoms can also be seen in individuals with heterozygous mutations.

Methods: The variant spectrum was evaluated retrospectively in individuals who presented with chronic diarrhea between 2014 and 2022 and had undergone genetic testing of the gene considering CSID due to diet-related complaints.

View Article and Find Full Text PDF

Aim: This paper describes the steps of a protocol for developing and assessing a non-pharmacological intervention, specifically a Serious Game, with the goal of improving eight cognitive skills in adults with Intellectual Disabilities. Serious games that focus on one deficit and/or are restricted to one disorder have been developed to improve the cognitive skills of people with Intellectual Disabilities. There is a lack of a single tool that targets various cognitive skills as well as a broader spectrum of disorders.

View Article and Find Full Text PDF
Article Synopsis
  • The significant phenotypic variability of human faces complicates the work of dysmorphologists by challenging Next-Generation Phenotyping (NGP) tools, especially when analyzing patients from diverse genetic backgrounds.
  • The research established the GestaltMatcher Database (GMDB), which includes over 10,000 facial images from patients with rare genetic disorders worldwide, striving to improve representation of underrepresented populations, particularly Asian and African patients.
  • The analysis showed that incorporating data from non-European patients enhanced the accuracy of NGP in diagnosing facial disorders without negatively affecting performance on European patients, emphasizing the need for more diverse datasets in medical genetics.
View Article and Find Full Text PDF

Background: This study examines the results of liver transplantation (LT) in patients with biliary atresia, considering whether they underwent the Kasai procedure beforehand. LT and determine postoperative and long-term graft outcomes.

Methods: This single-center, retrospective study included 72 pediatric patients diagnosed with postpartum biliary atresia who underwent LT between 2010 and 2022.

View Article and Find Full Text PDF

Celiac disease (CD) is an autoimmune enteropathy. Peroxiredoxins (PRDXs) are powerful antioxidant enzymes having an important role in significant cellular pathways including cell survival, apoptosis, and inflammation. This study aimed at investigating the expression levels of all PRDX isoforms (1-6) and their possible relationships with a transcription factor, HIF-1α, in the small intestinal tissue samples of pediatric CD patients.

View Article and Find Full Text PDF

Background: Candidemia is a life-threatening infection in hospitalied children. This study aimed to evaluate candidemia's demographic and clinical characteristics and identify the risk factors and outcomes of Candida albicans (CA) and non-albicans Candida (NAC) spp.

Methods: A retrospective cohort was designed to evaluate paediatric patients with candidemia between January 2008 and December 2020.

View Article and Find Full Text PDF

Artificial neural network (ANN) which is an information processing technique developed by modeling the nervous system of the human brain is one of the most powerful learning methods today. One of the factors that make ANN successful is its training algorithm. In this paper, an improved butterfly optimization algorithm (IBOA) based on the butterfly optimization algorithm was proposed for training the feed-forward artificial neural networks.

View Article and Find Full Text PDF

Background: Chronic abdominal pain is a frequent childhood complaint. This study aims to determine the relationship between bile reflux, which is increasing with the growth in packaged food consumption resulting from the changing food industry, and Helicobacter pylori gastritis.

Methods: In this retrospective study, 804 cases where there was an endoscopic examination for abdominal pain were included.

View Article and Find Full Text PDF

Background: Hepatitis-associated aplastic anemia (HAAA) is a rare complication that presented with bone marrow failure after acute hepatitis. HAAA usually occurs in adolescent men within 1-6 months following hepatitis. Most of HAAA's etiology has non-A-E viral hepatitis.

View Article and Find Full Text PDF

Background Citrin deficiency (CD) is an autosomal recessive genetic disorder caused by a defect in the mitochondrial aspartate/glutamate antiporter, citrin. Three clinical manifestations have been described until today. Case presentation We reported 5 CD patients from two families.

View Article and Find Full Text PDF

Introduction: Functional constipation (FC) is a common problem in childhood. This study intended to investigate the dietary properties and anthropometric findings of children with FC.

Population And Methods: Patients with FC were defined according to the Rome IV diagnostic criteria.

View Article and Find Full Text PDF

Background Gaucher disease (GD) is a lysosomal storage disorder caused by autosomal recessive mutations in the glucocerebrosidase (GBA) gene, which encodes acid β-glucosidase. GD type 3c is a rare group characterised by cardiovascular involvement, and homozygous D448H is the most frequent mutation. Case presentation We describe two patients who had homozygous D448H mutations.

View Article and Find Full Text PDF

Symptoms of infantile inflammatory bowel disease (I-IBD) can be life-threatening and associated with poor prognosis. The presence of Mediterranean fever (MEFV) gene mutations play an important role in treatment of I-IBD. In this article, we describe a case of I-IBD with a resistant fistula, in which remission occurred following colchicine therapy.

View Article and Find Full Text PDF

Objectives: The aim of the present study was to investigate psychiatric symptoms in adolescents diagnosed as having chronic gastritis, and to evaluate family functioning.

Methods: The population consisted of adolescents who were diagnosed endoscopically and histopathologically as having chronic gastritis without additional chronic disease. The anxiety levels, depression levels, and emotional and behavioral symptoms of the adolescents were measured using the Screen for Child Anxiety Related Emotional Disorders (SCARED), Beck Depression Inventory (BDI), and Strengths and Difficulties Questionnaire (SDQ).

View Article and Find Full Text PDF

Background/aims: Pediatric intestinal pseudo-obstruction (PIPO) is a severe disorder of gut motility. In this rare and difficult-to-manage disease, complex treatment method, such as intestinal transplantation, is sometimes needed. This study evaluated the management and follow-up results of patients with PIPO who received treatment at our center.

View Article and Find Full Text PDF

Background/aims: Thiopurines are widely used in the treatment of inflammatory bowel disease, but data are limited. Or aim was to determine the outcome of thiopurine application in children diagnosed with ulcerative colitis (UC).

Materials And Methods: Forty-eight patients with UC, diagnosed at our center between 2005 and 2016 and applied azathiopurine (AZA), were included in the study.

View Article and Find Full Text PDF

Context: Rapunzel syndrome is a rare form of gastric trichobezoar that develops through outstretching of the bezoar from the stomach to the intestine.

Case Report: A 12-year-old girl who had been diagnosed with celiac disease six years earlier was brought to the department of pediatric gastroenterology because of abdominal distension. A palpable mass was detected.

View Article and Find Full Text PDF

Background/aims: A liver transplant is the preferred treatment for patients with end-stage liver disease, as it usually results in longterm survival. However, due to the use of chronic immunosuppressive therapy, which is necessary to prevent rejection, de novo cancer is a major risk after transplantation. The aim of this study was to assess the incidence of post-transplant malignancies in children after liver transplantations.

View Article and Find Full Text PDF

Öztan MO, Güngör-Takeş G, Çağan-Appak Y, Yıldız C, Karakoyun M, Baran M. Management of NSAID-related pyloric obstruction in a child using endoscopic balloon dilatation: A case report. Turk J Pediatr 2018; 60: 765-768.

View Article and Find Full Text PDF

Özyurt G, Çağan-Appak Y, Karakoyun M, Eliaçık K, Baran M. Father`s role in infantile anorexia. Turk J Pediatr 2018; 60: 608-611.

View Article and Find Full Text PDF