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KAYA, ÖZLEM TUĞÇE

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ÖZLEM TUĞÇE

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2012 - 20202
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Author: ŞENER, GÖKSEL × Subject: INFLAMMATION ×

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    Myrtus communis leaf extract protects against cerulein-induced acute pancreatitis in rats
    (WILEY, 2020) ŞEN, ALİ; Ozbeyli, Dilek; Sen, Ali; Kaya, Ozlem Tugce Cilingir; Ertas, Busra; Aydemir, Sezgin; Ozkan, Naziye; Yuksel, Meral; Sener, Goksel
    In this study, the aim was to examine the potential protective effects of Myrtus communis subsp. communis leaf ethanol extract (MC) treatment against acute pancreatitis (AP) in rats. Thirty-two rats were grouped as the saline-pretreated control (C), MC-pretreated control (MC), saline-pretreated AP (AP), and MC-pretreated AP (MC + AP) groups. To induce AP, cerulein was administered (50 mu g/kg) two times. The rats were given MC for 14 days before cerulein injection. Six hours after the final cerulein injection, the rats were sacrificed. Pancreatic damage was associated with an increase in the serum activity of lipase and amylase, the pancreatic activity of myeloperoxidase, and the pancreatic level of malondialdehyde, interleukin-1 beta, and interleukin-6. AP also led to a decrease in the pancreatic level of anti-inflammatory interleukin-10 and glutathione. Pretreatment with MC before the induction of AP significantly reduced the pancreatic damage observed during the histological examination as well as reversed the biochemical changes evoked by AP. Practical applications Acute pancreatitis is characterized by high mortality (average about 5%; severe cases may reach about 30%). The current treatment for acute pancreatitis is mainly symptomatic. The introduction of herbal drugs may lead to the development of a new strategy in the treatment of this disease. This study revealed that MC reduced pancreatic injury by decreasing pro-inflammatory cytokines, increasing antioxidant capacity and anti-inflammatory cytokine, IL-10. To the authors' knowledge, this research is the first report showing that MC inhibits the development of AP. This observation suggests that MC may be useful in the prevention and the treatment of AP in clinical settings.
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    Lycopene inhibits caspase-3 activity and reduces oxidative organ damage in a rat model of thermal injury
    (ELSEVIER SCI LTD, 2012) ŞENER, GÖKSEL; Cevik, Ozge; Oba, Rabia; Macit, Caglar; Cetinel, Sule; Kaya, Ozlem Tugce Cilingir; Sener, Emre; Sener, Goksel
    Oxidative stress has been implicated in various pathological processes including burn induced multiple organ damage. This study investigated the effects of lycopene treatment against oxidative injury in rats with thermal trauma. Under ether anesthesia, shaved dorsum of the rats was exposed to 90 degrees C bath for 10 s to induce burn and treated either vehicle (olive oil) or lycopene (50 mg/kg orally). Rats were decapitated 48 h after injury and the tissue samples from lung and kidney were taken for histological analysis and the determination of malondialdehyde (MDA) and glutathione (GSH) levels, myeloperoxidase (MPO), superoxide dismutase (SOD), catalase (CAT) and caspase-3 activities. Proinflammatory cytokines, TNF-alpha and IL-1 beta, were assayed in blood samples. Severe skin scald injury caused a significant decrease in GSH levels, SOD and CAT activities, and significant increases in MDA levels, MPO and caspase-3 activities of tissues. Similarly, plasma TNF-alpha and IL-1 beta. were elevated in the burn group as compared to the control group. Lycopene treatment reversed all these biochemical indices. According to the findings of the present study, lycopene possesses antiinflammatory, antiapoptotic and antioxidant effects that prevents burn-induced oxidative damage in remote organs. (C) 2012 Elsevier Ltd and ISBI. All rights reserved.