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Mechanistic aspects of ameliorative efects of Eicosapentanoic acid ethyl ester on methotrexate‑evoked testiculopathy in rats
Faculty
Medicine
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Shereen Samy Mahmoud Osman
Staff Zu Site
Abstract In Staff Site
Journal:
Naunyn-Schmiedeberg's Archives of Pharmacology Springer
Volume:
Keywords :
Mechanistic aspects , ameliorative efects , Eicosapentanoic acid
Abstract:
Disrupted spermatogenesis and testicular injury are among the devastating outcomes of methotrexate. A major contributor to methotrexate-induced testiculopathy is oxidative damage which triggers apoptosis and altered autophagy responses. Eicosapentaenoic acid ethyl ester (EPA-E) is an antihyperlipidemic derivative of omega-3 fatty acids that exhibited afnity to peroxisome proliferator-activated receptor-γ (PPAR-γ) that possesses both antioxidant and autophagy modulating properties. This is an exploratory study aiming at assessing the efectiveness of EPA-E to alleviate testicular damage induced by methotrexate. The specifc exploratory hypothesis of this experiment is: EPA-E administration for 1 week to methotrexatetreated rats reduces testicular damage compared to control rats. As a secondary outcome, we were interested in identifying the implicated mechanism that mediates the action of EPA-E. In adult male Wistar rats, testiculopathy was achieved by a single methotrexate injection (20 mg/kg, ip). Rats received vehicle, EPA-E (0.3 g/kg/day, po) alone or with selective PPAR-γ antagonist (bisphenol A diglycidyl ether, BADGE) at 30 mg/kg/day, ip for 1 week. EPA-E recuperated methotrexate-attenuated serum total testosterone while reduced testicular infammation and oxidative stress, restoring superoxide dismutase (SOD) while reducing malondialdehyde (MDA) and 8–hydroxy–2′-deoxyguanosine (8-OHdG). Methotrexate-induced testicular apoptosis (caspase-3 and p53) was suppressed upon EPA-E treatment. Besides, EPA-E curbed methotrexate-induced abnormal autophagy by downregulating LC3A/B and beclin-1. Interestingly, BADGE-coadministration reversed EPA-E benefcial actions. Collectively, our fndings suggest PPAR-γ role in EPA-E-mediated mitigation of methotrexate-evoked testiculopathy via suppression of oxidative stress, apoptosis, as well as abnormal autophagy. Furthermore, EPA-E could be used as a preventive therapy for some testiculopathies mediated by oxidative stress.
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