Mehmet Gündüz

ORCID: 0000-0003-4479-3404
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About
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Research Areas
  • Respiratory viral infections research
  • Tracheal and airway disorders
  • COVID-19 Clinical Research Studies
  • Airway Management and Intubation Techniques
  • Neonatal Health and Biochemistry
  • Metabolism and Genetic Disorders
  • Influenza Virus Research Studies
  • Oral and Maxillofacial Pathology
  • Cancer and Skin Lesions
  • Food Allergy and Anaphylaxis Research
  • Child Nutrition and Feeding Issues
  • Congenital Diaphragmatic Hernia Studies
  • Salivary Gland Tumors Diagnosis and Treatment
  • Head and Neck Anomalies
  • Tumors and Oncological Cases
  • Heterotopic Ossification and Related Conditions
  • Leech Biology and Applications
  • Workaholism, burnout, and well-being
  • Cutaneous lymphoproliferative disorders research
  • Eosinophilic Esophagitis
  • Health and Wellbeing Research
  • Actinomycetales infections and treatment
  • Congenital Heart Disease Studies
  • Ear and Head Tumors
  • Xenotransplantation and immune response

Istanbul Medipol University
2015-2021

Sefako (Poland)
2021

Yedikule Teaching Hospital
2019

Wakayama University
2018

Ministry of Health
2014-2015

Ankara Onkoloji Eğitim ve Araştırma Hastanesi
2013

Fatih University
2011

Okayama University
2001-2008

Actinomycosis of the tongue is uncommon, but without proper treatment, it causes extensive tissue destruction. A mass that may mimic both benign and malignant neoplasms can be seen at clinical presentation mislead diagnosis. Early diagnosis critical usually difficult with cultures or imaging. We report a patient who presented tumor-like deeply localized primary actinomycosis its magnetic resonance imaging findings.

10.1097/scs.0b013e3182108e9b article EN Journal of Craniofacial Surgery 2011-05-01

Microcystic adnexal carcinoma is a rare, locally aggressive cutaneous neoplasm with high probability of persistence but low metastasis. We report case 69-year-old female patient an indurated plaque at the mental region. Histologically, tumor cells invaded subcutaneous tissue and mandibular bone. The consisted mainly squamous basaloid epithelial nests cords embedded in desmoplastic stroma. A few keratin-filled microcysts ductal structures were also observed. Perineural encroachment was noted...

10.1097/01.dad.0000211511.52489.aa article EN American Journal of Dermatopathology 2006-11-22

Angiogenesis is an essential process in the progression of malignant tumors. However, little known angioarchitecture primary oral melanoma. We sought to determine this by use periodic acid-Schiff (PAS) stain, endothelial markers (CD34, CD105) and laminin, transmission electron microscopy two cases. The results demonstrated that endothelium-lined vessels dominated tumor microvasculature these stained positively for PAS, markers. Mosaic tumor-lined were infrequently encountered. Most...

10.1177/002215540205001116 article EN Journal of Histochemistry & Cytochemistry 2002-11-01

A case of fibroepithelial mammary hyperplasia in a two years old, intact, tabby female cat that showed oestrus 1 month ago was treated with the combination aglepristone (Alizine, Virbac®) and cabergoline (Galastop, Ceva®) administrations. On day treatment, serum progesterone concentration detected as 2,96 ng/ml oestradiol below 5,0 pg/ml. The subcutaneous (SC) injections 15 mg/kg body weight (b.w.) on subsequent days per week for three weeks 5 µg/kg b.w day, os (PO) administration...

10.16988/iuvfd.12677 article EN İstanbul Üniversitesi Veteriner Fakültesi Dergisi 2011-10-31

Flexible bronchoscopy (FB) is frequently used for assessment and treatment of patients with respiratory diseases. Our aim was to investigate the contribution FB diagnosis therapy in children admitted intensive care units (ICU) evaluate safety this vulnerable population.Children less than 18 years age who underwent five neonatal pediatric ICUs Istanbul between July 1st, 2015 2020 were included study. Demographic clinical data including indications, findings, complications, management...

10.1002/ppul.25566 article EN Pediatric Pulmonology 2021-07-08

Development of the tooth is a complex and fascinating set processes which require sequential integration numerous biological steps. For dental doctors, interest particularly high, because mainly composed surface ectodermal epithelium neural crest derived neuroectodermal mesenchyma, formed by epithelial-mesenchymal interactions. There are many different types odontogenic neoplasms. In general, proliferation, development cytological differentiation neoplastic cells reflect normal physiological...

10.2485/jhtb.17.79 article EN Journal of Hard Tissue Biology 2008-01-01

Abstract Objective Data on the prognosis of clinical features pediatric patients affected by coronavirus disease 2019 (COVID-19) pandemic is insufficient. This study aimed to examine clinical, laboratory, and radiology findings diagnosed with COVID-19. Methods A total 81 a confirmed diagnosis COVID-19 who were admitted clinics our tertiary care hospital in Istanbul between March 22 May 1, 2020, included study. Results Of patients, 40 (49.6%) boys 41 (50.6%) girls. The mean age was 9.3 ± 5.5...

10.1055/s-0040-1721511 article EN Journal of Pediatric Infectious Diseases 2020-12-16

Keleş Ş, Gündüz M. Alpha gal specific IgE positivity due to tick bites and red meat allergy: the first case report in Turkey. Turk J Pediatr 2019; 61: 615-617. Galactose-alpha-1,3-galactose is a carbohydrate moiety found cell membranes of many organisms, commonly known as alpha-gal (α-Gal). This oligosaccharide not group primates which humans are involved. It has been that α-Gal plays key role delayed IgE-mediated allergy this allergen triggered by bites. Here we present 7-year-old boy with from

10.24953/turkjped.2019.04.023 article EN The Turkish Journal of Pediatrics 2019-08-25

Background To investigate the behaviour of inflammatory marker neutrophil-to-lymphocyte ratio (NLR) in presence peripheral blood eosinophilia (PBE) paediatric asthma patients with lower respiratory tract (LRT) infections. Methods This retrospective study enrolled consecutive aged ≥5 years who were diagnosed and whose haemogram values available. The further subdivided based on or absence LRT infections allergies. NLR C-reactive protein (CRP) evaluated relation to PBE (≥4% eosinophils)....

10.1177/0300060519844859 article EN cc-by-nc Journal of International Medical Research 2019-04-21

The aim of this study was to investigate the effect maternal diet on infantile colic without any interventions or food restrictions.Thirty colicky and 29 non-colicky infants were included in prospective study. Mother's baby crying time recorded for 1 week by mothers; nutritionist classified contents mother's compared mother infants.It found that mothers consumed significantly more grapes lemons than (p = 0.044). moderately negatively correlated with percentage protein (R -0.45, p 0.01)...

10.3109/14767058.2015.1115011 article EN The Journal of Maternal-Fetal & Neonatal Medicine 2015-11-02

The third ossification mode, known as transchondroid bone formation, is displayed chiefly in the morphogenetic protein (BMP)-induced heterotopic formation model. This paper describes results of histopathological, histochemical, immunohistochemical, and situ hybridization examinations BMP-induced mice. research focuses on localization typical matrix proteins (peptide its mRNA) cartilage bone--type-I type-II collagen, osteocalcin osteopontin--in chondroid matrix.

10.1177/147323000102900603 article EN Journal of International Medical Research 2001-12-01

<b><i>Background/Aims:</i></b> The aim of this study was to observe the relationship between gene expression profiles tumor necrosis factor (TNF)-α and endothelin (EDN)-1 obstructive sleep apnea (OSA). <b><i>Methods:</i></b> A prospective, cross-sectional performed at a tertiary-care academic center; 108 patients with snoring day-time sleeplessness were included in carried out Otolaryngology Department. All evaluated 1-night polysomnography...

10.1159/000490353 article EN ORL 2018-12-11

The argyrophilic proteins of nuclear-organized regions (AgNOR), visualised with colloidal silver methods as black dots are known AgNOR. To date, the relationship between AgNOR and cancer inflammatory conditions has been investigated. However, there no report investigating atopic dermatitis. aim this study was to investigate dermatitis in paediatric patients.Twenty-nine children 23 healthy were included study. test results analysed prospectively.The mean number (40.19 ± 21.06) patient group...

10.1111/exd.14031 article EN Experimental Dermatology 2019-09-08

Umbilical cord blood which can be obtained by a non-invasive method informative about the clinical status of newborn. It was aimed to establish reference intervals for umbilical parameters, and compare complete count results between venous samples in this study.This study conducted at Medipol University Sefaköy Hospital, Department Pediatrics, Istanbul, Turkey. A total 1898 newborns who were born two-year period January 2018 December 2019 included study. Venous taken from 184 them, 1714...

10.12669/pjms.37.2.2526 article EN cc-by Pakistan Journal of Medical Sciences 2021-01-08

BACKGROUND We aimed to analyze the neutrophil/lymphocyte ratio (NLR) and lymphocyte/monocyte (LMR) investigate their value in supporting diagnosis of influenza cases with influenza-like symptoms. METHODS A total 5,693 pediatric patients who applied Pediatric Clinic between January 2015 December 2018 were included study. Complete blood count rapid antigen tests evaluated at time admission. RESULTS The mean LMR was significantly lower than non-influenza (p < 0.001). also those or B compared...

10.7754/clin.lab.2020.200907 article EN Clinical Laboratory 2021-01-01

10.1177/0194599811401314 article EN Otolaryngology 2011-03-03

<b>Introduction:</b> The aim of this study was evaluation broncoscopic findings in children with congenital heart disease(CHD). <b>Method:</b> Bronchoscopy performed 37 patients CHD who were followed between October 2012–December 2014 our hospital. data obtained from these evaluated retrospectively. <b>Results:</b> Twenty-one the males and 16 females, median ages 12.5 mo (1-36m). Twenty-seven (72.9 %) operated for disease. Twelve had pulmonary hypertension. because extubation failure,...

10.1183/13993003.congress-2015.pa1355 article EN 2015-09-01

Background The clinical picture of COVID-19 shows significant similarity with influenza. In this study, it was aimed to compare the and laboratory findings between pediatric patients diagnosed those influenza A or B, obtain data on differential diagnosis from in children. Methods study included 104 COVID-19, 140 135 in-fluenza B (379 total) who were admitted our tertiary hospital symptoms acute respiratory tract infection. Results Fever, cough, runny nose, pharyngeal hyperemia rates...

10.7754/clin.lab.2020.201138 article EN Clinical Laboratory 2021-01-01

Amaç: Bu çalışma, ABO ve Rh kan gruplarının çocuklarda COVID-19 sıklığını semptom gelişimini etkileyip etkilemediğini araştırmayı amaçlamaktadır.Gereç Yöntem: Çalışmaya SARS-CoV-2 PCR testi pozitif 337 çocuk kontrol grubu olarak 1286 sağlıklı dahil edildi.Bulgular: (+) hasta oranı, (-) çocuklara göre anlamlı derecede yüksekti (p=0,006). Kan A'nın, vakalarında geliştirme için bir risk faktörü olduğu riski artırdığı bulunmuştur. grubunun bağımsız vakalarının semptomatik olma oranını...

10.30569/adiyamansaglik.889914 article TR Adıyaman Üniversitesi Sağlık Bilimleri Dergisi 2021-04-13
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