İnönü Üniversitesi Kurumsal Akademik Arşivi
DSpace@İnönü, İnönü Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.
Güncel Gönderiler
Gastro-Bronchial Fistula in the Long-Term Follow-up of Operated Case with Esophageal Carcinoma
(Modestum Ltd, 2013) Yekeler, Erdal; Ulutas, Hakki; Altuntas, Bayram
The development of a fistula between the gastric tube and the bronchial system represents a very rare but potentially catastrophic complication after intrathoracic esophagogastrostomy for esophageal carcinoma. A 67-years-old male patient, who underwent Ivor-Lewis surgery due to esophageal carcinoma six years ago, had persistence of complaints especially to increased cough immediately after food intake.
Value of Glut-1 and Koc Markers in the Differential Diagnosis of Reactive Mesothelial Hyperplasia, Malignant Mesothelioma and Pulmonary Adenocarcinoma
(De Gruyter Open Ltd, 2013) Ucer, Ozlem; Dagli, Adile Ferda; Kilicarslan, Ahmet; Artas, Gokhan
Objective: Malignant mesothelioma (MM) is a primary malignant tumor developing from mesothelial cells lining the serosal surfaces and particularly the pleura, and has a very poor prognosis. It may display a variety of histological patterns and has a wide spectrum of cytomorphological characteristics, causing problems in its differential diagnosis from lung adenocarcinomas and sometimes from benign mesothelial proliferations. Immunohistochemical examination is the most useful method for this distinction. In our study, we aimed to determine the value of glucose transporter isoform-1 (GLUT-1) and K homology domain-containing protein (KOC) markers in the differential diagnosis of reactive mesothelial hyperplasia, malignant mesothelioma and lung adenocarcinoma. Material and Method: Our study included 30 samples of malignant mesothelioma, 30 samples of pulmonary adenocarcinoma and 30 samples of reactive mesothelial hyperplasia selected from the archives of the Firat University Hospital's Pathology Department Laboratory. The samples were applied GLUT-1 and KOC markers by immunohistochemistry and the place of these markers in the differential diagnosis was examined. Results: GLUT-1 was found positive in 80% of malignant mesothelioma cases, 83.3% of adenocarcinoma cases and 6.6% of reactive mesothelial hyperplasia cases. KOC was positive in 83.3% of malignant mesothelioma cases, 76.6% of adenocarcinoma cases and 46.6% of reactive mesothelial hyperplasia cases. There was no statistically significant difference between malignant mesothelioma and lung adenocarcinoma cases in terms of the diffuseness and intensity of staining with GLUT-1, whereas a significant difference was established when these groups were compared with reactive mesothelial hyperplasia cases. However, the KOC staining diffuseness and intensity results were similar to those obtained with GLUT-1. Conclusion: In conclusion, GLUT-1 and KOC markers do not differentiate malignant mesotheliomas from pulmonary adenocarcinomas but can be useful in differentiating reactive mesothelial hyperplasia from malignant mesothelioma and lung adenocarcinoma.
Synthesis and characterization of thermally stable camphor-based polyimide-clay nanocomposites
(Tubitak Scientific & Technological Research Council Turkey, 2013) Yigit, Murat; Seckin, Turgay; Yigit, Beyhan; Koytepe, Suleyman
A new monomer was prepared from (1R,3S)-(+)-camphoric acid. Novel polyimide and polyimide-clay hybrid composites were developed from one-pot condensation reactions of this monomer and pyromellitic dianhyride. Polyimide-montmorillonite nanocomposites were prepared from solution of polyimide and with different weight percentages (1, 5, 10 wt %) of organo-modified montmorillonite (OM-MMT) using N-methyl-2-pyrrolidone (NMP) as aprotic solvent. The reactive organoclay was formed by using hexadecylpyridinium chloride as a swelling agent for silicate layers of montmorillonite. The polyimide-clay composites films (PI-MMT) were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). All composites were subjected to differential scanning calorimetry measurements for the purpose of examining Tg from all compositions. The clay content significantly influenced the thermal behavior of the polymeric films, such as glass transition and decomposition temperatures of polyimide-clay composites. The glass transition temperatures of the composites were higher than that of the original polyimide. Their thermal decomposition temperatures (Td = temperature at 5% mass loss) were measured via thermogravimetric analysis and showed that the introduction of clay into polymer backbones increased thermal stability. SEM, XRD, and the other conventional techniques were used for structural characterization. Dispersion of the modified clay in the polyimide matrix resulted in nanostructured material containing intercalated polymer between the silicate layers. The morphology and properties of PI nanocomposites greatly depend on the functional groups of the organic modifiers, synthesis procedure, and structure of polyimide because of the chemical reactions and physical interactions involved.
Paracontact semi-Riemannian submersions
(Tubitak Scientific & Technological Research Council Turkey, 2013) Gunduzalp, Yilmaz; Sahin, Bayram
In this paper, we first define the concept of paracontact semi-Riemannian submersions between almost paracontact metric manifolds, then we provide an example and show that the vertical and horizontal distributions of such submersions are invariant with respect to the almost paracontact structure of the total manifold. The study is focused on fundamental properties and the transference of structures defined on the total manifold. Moreover, we obtain various properties of the O'Neill's tensors for such submersions and find the integrability of the horizontal distribution. We also find necessary and sufficient conditions for a paracontact semi-Riemannian submersion to be totally geodesic. Finally, we obtain curvature relations between the base manifold and the total manifold.
Oral findings in children with celiac disease
(Tubitak Scientific & Technological Research Council Turkey, 2012) Ertekin, Vildan; Sumbullu, Muhammed Akif; Tosun, Mahya Sultan; Selimoglu, Mukadder Ayse; Kara, Mustafa; Kilic, Nihat
Aim: To investigate whether Turkish children with celiac disease (CD) show dental enamel defects (DEDs), recurrent aphthous stomatitis (RAS), teeth missing, and xerostomia, and to compare the results with age- and sex-matched healthy children. Materials and methods: The oral cavity was explored in 81 patients with CD (mean age 8.7 +/- 3.7 years; age range 2.5 to 17 years) and in 20 healthy controls. Enamel defects, teeth missing, RAS, and xerostomia were established. Results: Forty-three (53.1%) celiac patients and 5 (25%) control subjects had enamel defects. Enamel defects occurred more frequently in patients (P = 0.025) compared to controls. Regarding RAS, 39 (48.1%) patients and 1 (5%) control had aphthous ulcers (P = 0.0001). Teeth missing and xerostomia were detected in 11(13.6%) and 47 (58%) patients, respectively. Patients with xerostomia were significantly greater in number compared to healthy children (P = 0.008). In the present study, the prevalence of DEDs, RAS, and xerostomia was greater in celiac patients than in healthy controls. Conclusion: Early recognition of children with specific DEDs, RAS, and xerostomia and thus their referral to pediatricians might help in early diagnosis of CD.
