Yaşar Doğan

ORCID: 0000-0001-9738-9611
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About
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Research Areas
  • Liver Disease Diagnosis and Treatment
  • Gastrointestinal disorders and treatments
  • Helicobacter pylori-related gastroenterology studies
  • Hepatitis B Virus Studies
  • Celiac Disease Research and Management
  • Esophageal and GI Pathology
  • Eosinophilic Esophagitis
  • Child Nutrition and Feeding Issues
  • Hepatitis C virus research
  • Gastroesophageal reflux and treatments
  • Foreign Body Medical Cases
  • Regulation of Appetite and Obesity
  • Digestive system and related health
  • Microscopic Colitis
  • Herpesvirus Infections and Treatments
  • Neonatal and fetal brain pathology
  • Liver Disease and Transplantation
  • Infant Nutrition and Health
  • Child Nutrition and Water Access
  • Diabetes and associated disorders
  • Drug-Induced Hepatotoxicity and Protection
  • Metabolism and Genetic Disorders
  • Intestinal Malrotation and Obstruction Disorders
  • Diet and metabolism studies
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema

Fırat University
2012-2025

Hacettepe University
2023

Karamanoğlu Mehmetbey University
2023

Elazığ Eğitim ve Araştırma Hastanesi
2023

Creative Commons
2023

Bakırköy Dr.Sadi Konuk Eğitim ve Araştırma Hastanesi
2013-2014

Van Yüzüncü Yıl Üniversitesi
2013

Istanbul University
2004-2012

Fırat Üniversitesi Hastanesi
2012

Naval Academy
2004

Objective Use of peptide-based formulas supplemented with medium chain triglycerides (MCTs) is considered a beneficial strategy to decrease the tube-feeding associated gastrointestinal tolerance. In children cerebral palsy (CP), overall effects enteral tube feeding as well utility specialized in those intolerance have not been extensively studied. This study aimed evaluate via formula containing MCTs CP terms intolerance, anthropometrics, defecation characteristics and parental satisfaction...

10.3389/fped.2025.1448507 article EN cc-by Frontiers in Pediatrics 2025-02-12

<em>Aim</em>. To determine serum IL-1<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>&#x03B2;</mml:mi></mml:math>, IL-6, IL-8, and TNF-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>&#x03B1;</mml:mi></mml:math> levels in neonatal sepsis at the time of diagnosis after therapy, to show meaningful on follow up. <em>Methods</em>. This prospective study was performed newborns who were hospitalized for classified as culture-proven (<mml:math...

10.1155/2007/31397 article EN cc-by Mediators of Inflammation 2007-01-01

Ingested corrosive agents produce oropharyngeal and gastroesophageal injuries ranging from minor burns to severe necrosis, depending on the agent amount, concentration, duration of exposure. The aim this study was present our patients with ingestion retrospectively. Four hundred seventy-three children younger than 16 years age (mean age, 3.7+/-0.1 years) who were admitted hospital for suspected between 1995 2003 studied. Two eighty-six (60.5%) 473 males. Household bleaches (36.6%) oven...

10.1177/0009922806289618 article EN Clinical Pediatrics 2006-06-01

Insulin‐dependent diabetes mellitus (IDDM) is a chronic disease characterized by T‐cell‐dependent autoimmune destruction of the insulin‐producing β cells in pancreatic islets Langerhans, resulting an absolute lack insulin. T are activated response to islet‐dominant autoantigens, result being development IDDM. Insulin one islet autoantigens responsible for activation T‐lymphocyte functions, inflammatory cytokine production, and The aim this study was investigate serum concentrations...

10.1155/mi/2006/59206 article EN cc-by Mediators of Inflammation 2006-01-01

It has been well documented that human milk contains several immunomodulator components which are important during infant period when the newborn's immune system is still under development. In this study, we aim at examining levels of cytokines, zinc (Zn), and copper (Cu) in from mothers premature mature infants, comparing changes lactation periods consequently. Milk was collected total 40 (group M: n = 20; group PM: 20) four stages: colostrum (0-7 days), transitional (7-14 (21 (2nd month)....

10.1155/mi.2005.331 article EN cc-by Mediators of Inflammation 2005-01-01

Celiac disease, an autoimmune enteropathy that affects the proximal small intestine, is characteristically seen in people who have a genetic susceptibility to gluten sensitivity. patients' first-degree relatives are more at risk of acquiring disease. The objective present study was consequently determine prevalence celiac disease group our patients with disease.First-degree 195 attending gastroenterology unit underwent serologic screening. Antitissue transglutaminase (anti-tTG)...

10.1097/mpg.0b013e318249378c article EN Journal of Pediatric Gastroenterology and Nutrition 2012-01-11

To determine the seroprevalence of Helicobacter pylori infection among healthy children in eastern Turkey, to assess risk factors for seroconversion, and role parental status transmission H. pylori.A commercial enzyme immunoassay test IgG was used. Demographic information obtained included age, gender, socio-economic living conditions.One hundred fifty-two (43.9%) 346 were seropositive. There no significant difference rates between boys girls (P > 0.05), but a rise noted with increasing age...

10.1046/j.1440-1754.2002.00735.x article EN Journal of Paediatrics and Child Health 2002-04-01

The objectives of the present study were to determine Helicobacter pylori via culture, polymerase chain reaction and histopathological diagnosis in 101 children ranging age from 4 18 years, identify association among restriction fragment length polymorphism types clinical disease investigate relationships different isolates H. groups. We observed a high prevalence infections between ages 13 (75.8%), while aged 6 years had lowest infection (40%). was detected 30.7% (31 101), 66.3% (67 101)...

10.1590/s1517-838246220140234 article EN Brazilian Journal of Microbiology 2015-06-01

Cocklebur (Xanthium strumarium) is an herbaceous annual plant with worldwide distribution. The seeds contain the glycoside carboxyatractyloside, which highly toxic to animals. We describe nine cases of carboxyatractyloside poisoning in humans which, our knowledge, has not previously been reported. clinical, laboratory and histopathological findings therapeutic approach are also discussed.The patients presented acute onset abdominal pain, nausea vomiting, drowsiness, palpitations, sweating...

10.1179/146532805x45728 article EN Annals of Tropical Paediatrics 2005-05-31

Ghrelin has effects on nutrient intake and growth. The cause of growth retardation in congenital heart disease is multifactorial. aim the present study to investigate ghrelin association with TNF-alpha IL-6. Materials methods. We measured serum ghrelin, TNF-alpha, IL-6 levels using specific immunoassay 68 patients (47 acyanotic, 21 cyanotic disease) 25 control subjects. Results. In comparison controls, were significantly higher acyanotic (P<.0001). disease, there was a positive correlation...

10.1155/2007/32403 article EN cc-by Mediators of Inflammation 2007-01-01

AIM: In this study we aim to determine the frequency of Inlet Patch (IP) and its association clinical symptoms draw attention be aware heterotopic gastric mucosa. METHODS: This was a prospective case series that IP detected in upper gastrointestinal endoscopy. Patients with laringopharyngeal reflux underwent endoscopy between March 2009 July 2012 two different institutions. All biopsies were obtained from if there is lesion antral or/and The data prospectively evaluated. prevalence compared...

10.59566/ijbs.2014.10129 article EN International Journal of Biomedical Science 2014-06-15

The aim is to examine whether the changes in pleural fluid interleukin (IL)-1beta, IL-2, IL-6, and IL-8 levels were significant differential diagnosis of childhood effusions. IL-1beta, fluids all 36 patients measured. statistically significantly higher transudate group compared with those exudate group. IL-1 beta, also found be empyema both parapneumonic tuberculous effusion groups. IL-2 IL-6 detected comparison results showed that could used distinction.

10.1155/mi.2005.2 article EN cc-by Mediators of Inflammation 2005-01-01

TO examine esophageal and gastric lesions in children due to the ingestion of alkali acid corrosive substances emphasize all related complications.The reports 103 who ingested or were suspected have then underwent upper gastrointestinal endoscopic inspections evaluated retrospectively.Of patients, mean age was 41 ± 3.6 months, 57.3% male. Vomiting most common symptom (44.7%). Eighteen different commercial products defined as substances: 59.2% them alkali, 39.8% acids, 1% had a neutral pH....

10.3906/sag-1312-140 article EN TURKISH JOURNAL OF MEDICAL SCIENCES 2015-01-01

Vitamin D insufficiency/rickets is a metabolic bone disease that leads to insufficient mineralization of bone. Chronic neurological diseases, including cerebral palsy (CP), convulsive disorders, neural tube defects, myopathy, immobility, lack sun exposure, inadequate nutrition, and antiepileptic drugs (AEDs) can cause vitamin insufficiency osteopenia in children.In this study, the authors searched frequency causative factors children with chronic diseases such as CP, hypoxic-ischemic...

10.22037/ijcn.v17i2.35938 article EN PubMed 2023-01-01

Homozygous or compound heterozygous protein S (PS) deficiency is very rare in the population; only 8 patients from 6 different families have been reported. On other hand, factor V Leiden (FVL) mutation a frequent cause of inherited prothrombotic disorder. Here authors report case patient with severe PS associated FVL who has had purpura fulminans since age 10 days. She first child consanguineous marriage. Her father double for and recurrent thrombosis. This combined mutation. suggests need...

10.1080/713842210 article EN Pediatric Hematology and Oncology 2003-01-01

We aimed to investigate the clinical importance of quantitative levels serum hepatitis B surface antigen (HBsAg) and e (HBeAg), detect their correlation with virus (HBV) DNA load, alanine aminotransferase (ALT) levels, hepatic activity index (HAI) fibrosis scores.A total 56 HBeAg-positive children chronic (CHB) were included in study. Quantification HBsAg HBeAg was performed using an automated chemiluminescent microparticle immunoassay. Comparisons paired t-test, Mann-Whitney U test or...

10.5152/tjg.2015.4636 article EN The Turkish Journal of Gastroenterology 2015-02-13
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