title: Bauhinia forficata prevents vacuous chewing movements induced by haloperidol in rats and has antioxidant potential in vitro.
abstract: Classical antipsychotics can produce motor disturbances like tardive dyskinesia in humans and orofacial dyskinesia in rodents. These motor side effects have been associated with oxidative stress production in specific brain areas. Thus, some studies have proposed the use of natural compounds with antioxidant properties against involuntary movements induced by antipsychotics. Here, we examined the possible antioxidant activity of Bauhinia forficata (B. forficata), a plant used in folk medicine as a hypoglycemic, on brain lipid peroxidation induced by different pro-oxidants. B. forficata prevented the formation of lipid peroxidation induced by both pro-oxidants tested. However, it was effective against lipid peroxidation induced by sodium nitroprusside (IC50 = 12.08 μg/mL) and Fe(2+)/EDTA (IC50 = 41.19 μg/mL). Moreover, the effects of B. forficata were analyzed on an animal model of orofacial dyskinesia induced by long-term treatment with haloperidol, where rats received haloperidol each 28 days (38 mg/kg) and/or B. forficata decoction daily (2.5 g/L) for 16 weeks. Vacuous chewing movements (VCMs), locomotor and exploratory activities were evaluated. Haloperidol treatment induced VCMs, and co-treatment with B. forficata partially prevented this effect. Haloperidol reduced the locomotor and exploratory activities of animals in the open field test, which was not modified by B. forficata treatment. Our present data showed that B. forficata has antioxidant potential and partially protects against VCMs induced by haloperidol in rats. Taken together, our data suggest the protection by natural compounds against VCMs induced by haloperidol in rats.
authors: Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
authors: Luis Ricardo
authors: LR
authors: Peroza
authors: Alcindo
authors: A
authors: Busanello
authors: Caroline Queiroz
authors: CQ
authors: Leal
authors: Jivago
authors: J
authors: Röpke
authors: Aline Augusti
authors: AA
authors: Boligon
authors: Daiane
authors: D
authors: Meinerz
authors: Milena
authors: M
authors: Libardoni
authors: Margareth Linde
authors: ML
authors: Athayde
authors: Roselei
authors: R
authors: Fachinetto
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D036481:Bauhinia / Q000737:chemistry*; D001522:Behavior, Animal / Q000187:drug effects; D008297:Male; D008409:Mastication / Q000187:drug effects; D009043:Motor Activity / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar
chemical_list: D000975:Antioxidants; D010936:Plant Extracts
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