Protective effect of Morus alba leaves on haloperidol-induced orofacial dyskinesia and oxidative stress

• Published in: Pharmaceutical biology Vol. 48; no. 1; p. 17
• Main Authors: Nade, V S, Kawale, L A, Yadav, A V
• Format: Journal Article
• Language: English
• Published: England 01-01-2010
• Subjects: Animals; Dyskinesia, Drug-Induced - metabolism; Dyskinesia, Drug-Induced - prevention & control; Haloperidol - toxicity; Lipid Peroxidation - drug effects; Lipid Peroxidation - physiology; Male; Morus; Movement Disorders - metabolism; Movement Disorders - prevention & control; Oxidative Stress - drug effects; Oxidative Stress - physiology; Plant Extracts - isolation & purification; Plant Extracts - pharmacology; Plant Extracts - therapeutic use; Plant Leaves; Rats; Rats, Wistar
• ISSN: 1744-5116
• DOI: 10.3109/13880200903029357

Long-term treatment with haloperidol, a typical neuroleptic, induces neurodegeneration caused by excitotoxicity and oxidative stress, which play an important role in the development of orofacial dyskinesia. In the present investigation, an attempt has been made to examine the effect of a concomitant treatment of methanol extract of Morus alba Linn. (Moraceae) leaves (100-300 mg/kg, i.p.) and haloperidol (1 mg/kg, i.p.) on an animal model of tardive dyskinesia. Rats were treated for 21 days with haloperidol and Morus alba extract; vacuous chewing movements and tongue protrusions were counted. The extract attenuated the increase in vacuous chewing movements and tongue protrusions induced by haloperidol, which were quantified on day 22. The extract showed a marked effect on behavioral parameters altered by haloperidol treatment. Similar treatment with extract attenuated haloperidol-induced lipid peroxidation and nitrite and normalized superoxide dismutase, catalase, and protein in comparison to the control group. The results suggest a protective effect of Morus alba extract against haloperidol-induced orofacial dyskinesia and oxidative stress.