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Öğe The Cytokines-Directed Roles of Spirulina for Radioprotection of Lacrimal Gland(Taylor & Francis Inc, 2023) Atilgan, H., I; Akbulut, A.; Yazihan, N.; Yumusak, N.; Singar, E.; Koca, G.; Korkmaz, M.Purpose To evaluate the radioprotective effect of spirulina (SP) on the lacrimal glands after RAI treatment. Methods A total of 30 rats were separated into control, RAI and SP group. The radioprotective effect of SP on lacrimal glands was evaluated with histopathological and cytopathological analysis. Lacrimal glands were analyzed for tumor necrosis factor alpha (TNF-alpha), interleukin-2 (IL-2), IL-4, IL-6, IL-10, nuclear factor-kappa B (NF-kappa B), total oxidant status (TOS) and total antioxidant capacity (TAC) levels. Results RAI increased TNF-alpha (p = .001), IL-6 (p = .018), and NF-kappa B levels (p < .0005). Following the administration of SP, TNF-alpha (p < .0005), IL-4 (p = .026), and IL-6 (p = .006) levels decreased. RAI decreased the TAC levels (p = .001), and co-administration of SP increased the TAC level, but was not statistically significant. SP decreased the TOS level after RAI (p = .022) . Conclusions SP protects lacrimal glands from RAI-induced damage.Öğe The protective effect of L-carnitine against hippocampal damage due to experimental formaldehyde intoxication in rats(Taylor & Francis Ltd, 2014) Ozmen, E.; Ozsoy, S. Y.; Donmez, N.; Ozsoy, B.; Yumusak, N.We investigated the protective effects of L-carnitine on hippocampus tissue damage in rats during experimental formaldehyde (FA) intoxication. Male Wistar albino rats were assigned into four groups: (1) control (C), (2) formaldehyde (FA), (3) formaldehyde + 0.5 g/kg of L-carnitine (FA + 0.5 LC) (4) formaldehyde + 1 g/kg L-carnitine (FA + 1 LC). At the end of the 14 day trial period, animals were sacrificed by decapitation under anesthesia. The hippocampus tissue samples were extracted to measure MDA, GSH and SOD activity. Neuronal degeneration was assessed based on histopathological (hematoxylin and eosin) and immunohistochemical (anti-ubiquitin) examination. To detect oxidative stress, specimens were reacted with anti-Cu/Zn-SOD antibody. After administering L-carnitine with FA to the animals, the activities of SOD and GSH increased, but the levels of MDA decreased in hippocampus tissue. Neuronal degeneration was observed in the FA group. L-carnitine administration reduced neuronal degeneration and histological structure was similar to controls. After FA application, degenerated hippocampus neurons were stained with anti-ubiquitin and Cu/Zn-SOD antibodies; weakly positive staining was observed in L-carnitine-treated groups. L-carnitine may be useful for preventing oxidative damage in the hippocampus tissue due to formaldehyde intoxication.Öğe Role of Syndecan Gene in the Pathogenesis of Liver Damage in Radioactive Iodine-131 Therapy(Springer, 2019) Yumusak, N.; Yigin, A.; Atilgan, H.; Yigin, A. Kalayci; Koca, G.; Yilmaz, R.; Korkmaz, M.[Abstract Not Available]
