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  • Title: Efficacy of Cilostazol a selective phosphodiesterase-3 inhibitor in rat model of Streptozotocin diabetes induced vascular dementia.
    Author: Kumar A, Kumar A, Jaggi AS, Singh N.
    Journal: Pharmacol Biochem Behav; 2015 Aug; 135():20-30. PubMed ID: 25987325.
    Abstract:
    The present study has been designed to investigate the potential of Cilostazol a phosphodiesterase-3 (PDE-3) inhibitor in diabetes-induced vascular dementia (Vad) employing Wistar rats. A single dose of Streptozotocin (STZ) was used for the induction of diabetes and subsequent Vad in rats. Memory and learning abilities of rats were evaluated with Morris water maze (MWM) test. Serum glucose, body weight, vascular endothelial function, serum nitrite/nitrate levels, brain oxidative stress levels (viz. brain thiobarbituric acid reactive species and reduced glutathione levels), inflammatory markers (viz. brain myeloperoxidase activity and neutrophil infiltration in the brain hippocampal area) and brain acetylcholinesterase activity were also tested. Donepezil was used as positive control. Streptozotocin treated animals showed poor performance on MWM indicating impairment of learning and memory abilities with a significant reduction in body weight, vascular endothelial function, serum nitrite/nitrate levels, along with an increase in serum glucose, brain oxidative stress levels, inflammatory changes and brain acetylcholinesterase activity. Treatment with selective PDE-3 inhibitor, Cilostazol significantly attenuated, diabetes-induced impairment of learning and memory; endothelial dysfunction, and changes in various biochemical parameters. It is concluded that selective PDE-3 inhibitor, Cilostazol may be considered as the potential pharmacological agent for the management of diabetes-induced vascular dementia.
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