Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/11727/4809
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Item Postconditioning Ozone Alleviates Ischemia-Reperfusion Injury and Enhances Flap Endurance in Rats(2020) Elsurer, Cagdas; Onal, Merih; Selimoglu, Nebil; Erdur, Omer; Yilmaz, Mustafa; Erdogan, Ender; Kal, Oznur; Celik, Jale Bengi; Onal, Ozkan; 0000-0002-7751-4961; 30339503; AAJ-7586-2021Introduction: Muscle-flap transferring is a routine approach utilized in reconstructive operations; however, flap morbidity is often a source of post-operative difficulty. Ischemia-Reperfusion Injury (IRI) is an important contributor to the viability of flaps after transferring. The goal of this research was for assess the probable useful impacts of ozone on flap survival in a rat muscle-flap design. Materials and Methods: We examined the effects of postconditioning ozone administration on viability of pedicled composite flaps. Twenty-eight Wistar rats were randomized into four groups: sham-operated (S), ischemia-reperfusion (IR), sham-operated + ozone (O), IR + ozone (IR + O), respectively. The animals were sacrificed on the eighth day. In a general histological evaluation, flap tissues were examined with a light microscope, and apoptotic cells were counted. The Apoptotic Index (AI) was then calculated. Flap-tissue samples were sent for analyses of malondialdehyde (MDA), catalase (CAT), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and protein carbonyl (PCO), and blood samples were sent for analyses of Total Oxidant Score (TOS), and Total Antioxidant Capacity (TAC). Data were evaluated statistically using the Kruskal-Wallis test. Results: The histomorphometric score was remarkably greater in O (p = .002). The AI was greater in IR (p = .002). The antioxidant parameters values as regards SOD, GSH-Px, CAT, and TAC were found to be greater in O (p < .005). The oxidant parameters values as regards MDA, PCO, TOS were found to be greater in IR (p < .005). Discussion: The current research indicates that ozone application can attenuate the muscle-flap injury brought about by IR through triggering the increase of the antioxidant capacity.Item Relationship Among Coping Strategies, Quality of Life, and Anxiety and Depressive Disorders in Hemodialysis Patients(2019) Ulusoy, Selen Isik; Kal, Oznur; 0000-0003-2550-8989; 31233289Patients with hemodialysis face many physical and emotional stressors; yet little is known regarding coping strategies and their effects on patients' quality of life (QOL) and anxiety and depressive disorders. A total of 117 patients were enrolled in this cross-sectional study between October 2016 and April 2017. This study assessed QOL (Medical outcome short form 36-MOS 36), coping (Assessment Scale for Coping Attitudes-COPE) and psychiatric comorbidities in hemodialysis patients. Beck Depression Scale and Beck Anxiety Scale were also applied. Differences between groups were evaluated using Student's t-tests and anova. Correlations among parameters were performed. Patients with any depressive disorder (22.2%, n = 26) and patients with any anxiety disorder (19.6%, n = 23) reported more impaired QOL. The most frequently used coping strategy in all patients was religious coping. Use of instrumental social support, humor, and positive reinterpretation scores were lower in patients with any depressive disorder (P = 0.009, P = 0.034, P = 0.047).The total score of emotion-focused coping strategies was lower with patients with any depressive disorder (P = 0.021) and emotion-focused coping strategies were positively correlated with QOL scores. Younger age and longer duration of hemodialysis have significant negative correlation with emotion-focused coping strategies' total score (P = 0.01, P = 0.02). Patients with hemodialysis use variety of coping strategies. The use of emotion-focused coping was associated with better QOL and reducing the risk of depressive disorder. Interventions to facilitate the use of adaptive coping strategies may improve patients' QOL and mood.