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Öğe Acute gastric volvulus due to deficiency of the gastrocolic ligament in a newborn(Springer-Verlag, 2002) Basaran, UN; Inan, M; Ayhan, S; Aydiner, C; Ayvaz, S; Ceylan, T; Pul, NGastric volvulus is rare in the neonatal period. Only three cases of gastric volvulus due to deficiency of gastrocolic ligament have been reported until now in the literature. We describe a neonatal case due to absence of the gastrocolic ligament. Stamm gastrostomy was performed for fixation and there has been no recurrence of his symptoms during a 13-month post-operative period. Conclusion: Stamm gastrostomy is a viable treatment of gastric volvulus due to lack of the gastrocolic ligament.Öğe Malrotation as a preparing ground for intussusception(Springer-Verlag, 2003) Inan, M; Aydiner, CY; Ayvaz, S[Abstract Not Available]Öğe The protective role of melatonin in experimental hypoxic brain damage(Blackwell Publishing, 2005) Tütüncüler, F; Eskiocak, S; Basaran, ÜN; Ekuklu, G; Ayvaz, S; Vatansever, ÜBackground: It is known that oxygen-derived free radicals play an important role in the pathogenesis of brain injury. Melatonin is a powerful scavenger of the oxygen free radicals. In this study, the protective effect of melatonin against the damage inflicted by reactive oxygen species during brain hypoxia was investigated in newborn rats using biochemical parameters. Methods: For biochemical analyses, the levels of lipid peroxidation product (malondialdehyde ([MDA]), levels of reduced glutathione (GSH) and the activities of superoxide dismutase (SOD) and catalase (CAT) were estimated. Results: After the third day of brain hypoxia, the brain levels of MDA increased. Pretreatment of animals with melatonin abolished the rise in MDA induced by hypoxia. GSH concentration did not increase by pretreatment with melatonin. Additonally, the activities of two antioxidative enzymes (SOD and CAT) decreased after the experimental period with melatonin only preventing the change of CAT. The activity of SOD was not influenced by melatonin administration as expected. Conclusion: In this experimental study, exogenously administered melatonin effectively protected against brain injury by oxidative stress. This protective effect of melatonin may be due to its direct scavenger activity and activation of CAT. Thus, melatonin may potentially be useful in the treatment of neurodegenerative conditions that may involve free radical production, such as perinatal hypoxia.Öğe Scintigraphy in the evaluation of esophageal transit in children with caustic esophageal injury(Springer, 2004) Kaya, M; Inan, M; Bedel, D; Ayvaz, S[Abstract Not Available]Öğe Waugh's syndrome: Report of two cases(W B Saunders Co-Elsevier Inc, 2004) Inan, M; Basaran, UN; Ayvaz, S; Pul, MThe association of intussusception and intestinal malrotation has been reported rarely in the literature. This association is called Waugh's syndrome. The authors report 2 cases of Waugh's syndrome and discuss diagnostic features and treatment methods. (C) 2004 Elsevier Inc. All rights reserved.