Protective effect of nebivolol on reserpine-induced neurobehavioral and biochemical alterations in rats

• Published in: Neurochemistry international Vol. 63; no. 4; pp. 316 - 321
• Main Authors: Nade, V.S., Shendye, N.V., Kawale, L.A., Patil, N.R., Khatri, M.L.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-10-2013
• Subjects: Animals; Antihypertensive Agents - pharmacology; Behavior, Animal - drug effects; Benzopyrans - pharmacology; Brain - drug effects; Brain - metabolism; Dyskinesias - physiopathology; Ethanolamines - pharmacology; Glutathione - metabolism; Lipid Peroxidation - drug effects; Male; Motor Activity - drug effects; Nebivolol; Rats; Rats, Wistar; Reserpine - pharmacology; Tardive dyskinesia; Vacuous chewing movements; Nebivolol; Vacuous chewing movements; Tardive dyskinesia
• ISSN: 0197-0186; 1872-9754
• DOI: 10.1016/j.neuint.2013.07.002

•Neuroprotective effect of nebivolol on reserpine-induced neurobehavioral alterations.•Nebivolol has a protective role against reserpine-induced orofacial dyskinesia.•Antioxidant potential of nebivolol.•Nebivolol attenuated vacuous chewing movements and tongue protrusions induced by reserpine.•Nebivolol could be a drug of choice for patients suffering from tardive dyskinesia.
Reserpine-induced orofacial dyskinesia is a model that shares some mechanists’ aspects with tardive dyskinesia whose pathophysiology has been related to oxidative stress. The present study was aimed to explore neuroprotective effects of nebivolol, an antihypertensive agent, on reserpine-induced neurobehavioral and biochemical alterations in rats. Reserpine (1mg/kg, s.c.) was used to induce neurotoxicity. Administration of reserpine for 3days every other day significantly increased the vacuous chewing movements (VCMs), tongue protrusions (TPs) and reduced the locomotor activity in rats. Pre-treatment with nebivolol (5 and 10mg/kg, p.o. for 5days) showed dose dependant decrease in VCMs and TP induced by reserpine. Nebivolol also showed significant improvement in locomotor activity. Reserpine significantly increased lipid peroxidation and reduced the levels of defensive antioxidant enzymes like catalase (CAT), superoxide dismutase (SOD) and reduced glutathione (GSH) in rat brain. Nebivolol reversed these effects of reserpine on oxidative stress indices; indicating amelioration of oxidative stress in rat brains. The results of the present study indicated that nebivolol has a protective role against reserpine-induced orofacial dyskinesia. Thus, the use of nebivolol as a therapeutic agent for the treatment of tardive dyskinesia may be considered.