Browsing by Author "Karadag, Mehmet"

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Cytokine expression profiles in Autism spectrum disorder: A multi-center study from Turkey
(2020) Kutuk, Meryem Ozlem; Tufan, Evren; Gokcen, Cem; Kilicaslan, Fethiye; Karadag, Mehmet; Mutluer, Tuba; Yektas, Cigdem; Coban, Nurdan; Kandemir, Hasan; Buber, Ahmet; Coskun, Seyma; Acikbas, Ufuk; Guler, Gulen; Topal, Zehra; Celik, Fatma; Altintas, Ebru; Giray, Asli; Aka, Yeliz; Kutuk, Ozgur; 0000-0002-2918-7871; 0000-0001-9854-7220; 0000-0003-2735-4805; 32563959; AAI-9626-2021; AAH-1671-2019; G-8832-2015
Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterized by impairments in communication and social interaction as well as restricted interests and repetitive behaviors. The pathogenesis of ASD is not completely understood, but a growing body of research has demonstrated that the immune response may be a contributing factor in the etiology and/or ontogeny of ASD. The aim of this study was to determine the expression levels of IL-1 beta, IL-1 alpha, IL-4, IL-6, IL-17, TNF-alpha and TGF-beta in peripheral blood mononuclear cells of children with ASD and healthy controls in order to determine the contributions of cytokines to ASD. Within the study timeframe, 195 children with ASDs (80.5% male) and 162 controls (73.6% male) were enrolled. Most children with ASD had a comorbid disorder (n = 114, 58.5%), with the most common diagnoses as Intellectual Developmental Disorder (IDD, n = 64, 32.8%) and ADHD (n = 64, 32.8%). The majority of children with ASD had severe autistic symptoms as evaluated via Childhood Autism Rating Scale (CARS, n = 130, 64.6%). The mean CARS score in the ASD sample was 40.8 (S.D. = 7.6). The patients with ASD were found to have significantly higher levels of IL-6 (p < 0.001) and significantly lower levels of IL-17 (p < 0.05, all Bonferroni corrected). Treatment tended to affect IL-4 levels. Lastly, discriminant function analysis (DFA) revealed that a combination of IL-6, IL-17 and IL-1 alpha correctly classified 56.6% of cases. Despite extensive immunological evidence suggesting immune system aberrations, further research is required to clarify the relationship between immune profiles and ASD symptoms.
Effect of Asbestos Exposure on the Frequency of EGFR Mutations and ALK/ROS1 Rearrangements in Patients With Lung Adenocarcinoma A Multicentric Study
(2021) Yilmaz, Senay; Demirci, Nilgun Yilmaz; Metintas, Selma; Zamani, Adil; Karadag, Mehmet; Guclu, Ozge A.; Kabalak, Pinar Akin; Yilmaz, Ulku; Ak, Guntulu; Kizilgoz, Derya; Ozturk, Akin; Yilmaz, Ufuk; Batum, Ozgur; Kavas, Murat; Serifoglu, Irem; Unsal, Meftun; Komurcuoglu, Berna E.; Cengiz, Tuba Inal; Ulubay, Gaye; Ozdemirel, Tugce S; Ozyurek, Berna A.; Kavurgaci, Suna; Alizoroglu, Dursun; Celik, Pinar; Erdogan, Yurdanur; In, Erdal; Aksoy, Asude; Altin, Sedat; Gunluoglu, Gulsah; Metintas, Muzaffer; 33399308
Objective: The aim of this study is to investigate the effect of asbestos exposure on cancer-driver mutations. Methods: Between January 2014 and September 2018, epidermal growth factor receptor (EGFR), anaplastic lymphoma receptor tyrosine kinase (ALK), and c-ros oncogene 1 receptor tyrosine kinase gene (ROS1) alterations, demographic characteristics, asbestos exposure, and asbestos-related radiological findings of 1904 patients with lung adenocarcinoma were recorded. Results: The frequencies of EGFR mutations, ALK, and ROS1 rearrangements were 14.5%, 3.7%, and 0.9%, respectively. The rates of EGFR mutations and ALK rearrangements were more frequent in asbestos exposed non-smokers (48.7% and 9%, respectively). EGFR mutation rate was correlated to female gender and not-smoking, ALK rearrangement rate was correlated to younger age, not-smoking, and a history of asbestos exposure. Conclusions: The higher rate of ALK rearrangements in asbestos-exposed lung adenocarcinoma cases shows that asbestos exposure may most likely cause genetic alterations that drive pulmonary adenocarcinogenesis.
High Depression Symptoms and Burnout Levels Among Parents of Children with Autism Spectrum Disorders: A Multi-Center, Cross-Sectional, Case-Control Study (Jan, 10.1007/s10803-021-04874-4, 2021)
(2021) Kutuk, Meryem Ozlem; Tufan, Ali Evren; Kilicaslan, Fethiye; Guler, Gulen; Celik, Fatma; Altintas, Ebru; Gokcen, Cem; Karadag, Mehmet; Yektas, Cigdem; Mutluer, Tuba; Kandemir, Hasan; Buber, Ahmet; Topal, Zehra; Acikbas, Ufuk; Giray, Asli; Kutuk, Ozgur; 0000-0002-2918-7871; 0000-0001-9854-7220; 33591437; AAI-9626-2021
Media-based clinical research on selfie-related injuries and deaths
(2018) Dokur, Mehmet; Petekkaya, Emine; Karadag, Mehmet; 29569684
BACKGROUND: The incidence of taking selfies and sharing them on social media as well as selfie-related behaviors is increasing, particularly among young people, possible leading to selfie-related trauma. Therefore, we performed this clinical study to draw attention to selfie-related injuries and deaths. METHODS: We analyzed 159 selfie victims from 111 events or accidents, which were reported in the media sources. We evaluated vital results, demography, rhythmicity, preferences, event or accident types, selfie-related risk factors, affected body regions of victims with causes of injury, and death. RESULTS: We found that the majority of selfie victims were students. Selfie-related injuries and deaths were reported most frequently in India, the US, and Russia. The most preferred site of taking selfies was the edge of the cliff. The most frequently reported event or accident type was falling from a height. Mostly multiple body parts were affected in selfie-related injuries and deaths. The most frequent causes of selfie-related deaths were multitrauma and drowning. CONCLUSION: Selfie-related injuries and deaths have increased in the past years. Particularly, teenagers and young adults are at high risk for selfie-related traumas and deaths; therefore, drastic measures should be taken to reduce their incidence.
Novel inflammatory targets for immunotherapies in pediatric patients with trichotillomania
(2020) Kutuk, Meryem Ozlem; Tufan, Ali Evren; Kilicaslan, Fethiye; Mutluer, Tuba; Gokcen, Cem; Karadag, Mehmet; Yektas, Cigdem; Kandemir, Hasan; Buber, Ahmet; Aksu, Gulen Guler; Topal, Zehra; Giray, Asli; Celik, Fatma; Acikbas, Ufuk; Kutuk, Ozgur; 0000-0002-2918-7871; 32113788; AAI-9626-2021
Immune dysregulation may be important in the etiology of obsessive-compulsive and related disordersandbody-focusedrepetitivebehaviors, such as Trichotillomania (TTM). The role of inflammation and inflammatory markers in TTM has received relatively little attention. This study was aimed to determine the expression levels of inflammatory markers (i.e. IL-1 beta, IL-1 alpha, IL-4, IL-6, IL-17, TNF-alpha and TGF-5) in peripheral blood mononuclear cells of children with TTM and healthy controls and to evaluate their association with clinical variables. Seventy-seven patients with TTM and 107 healthy controls were enrolled in the study. Peripheral blood was collected in standardized conditions. The mean age of patients and controls did not differ significantly (10.8 +/- 4.4 and 12.0 +/- 3.2 years; respectively). The majority of patients with TTM and controls were females (n = 55, 71.4 % and n = 55, 51.4 %; respectively); with a greater preponderance of females among TTM. Patients with TTM had significantly elevated expression levels of TNF-alpha, IL-6 and IL-17 compared to controls. However, the expression level of IL-4 was significantly reduced in TTM patients compared to controls. Accordingly, we found a proinflammatory state in TTM and those findings may suggest novel treatment options for TTM and further, crossdisciplinary studies focusing on neuro- inflammation in TTM conducted on larger samples are needed.
Pulmonary Physician Consultancy İn Emergency Services İn Turkey (PUPCEST) - A Prospective Multicenter Study
(2018) Diken, Ozlem Ercen; Ekici, Aydanur; Bektas, Hayriye; Yildiz, Hanifi; Tabaru, Ali; Ogan, Nalan; Gulhan, Pinar Yildiz; Ozdemir, Tarkan; Arslan, Sulhattin; Tosun, Mustafa; Baslilar, Seyma; Kilic, Talat; Ozkisa, Tuncer; Ozyurt, Sibel Pekcan; Dikis, Ozlem Sengoren; Arpag, Huseyin; Erbay, Umran Toru; Tutar, Umit; Ayvaci, Aysun; Esendagli, Dorina; Hocanli, Iclal; Oktay, Nuray; Ozcelik, Neslihan; Karadag, Mehmet; Kirkil, Gamze; Ozlu, Tevfik