title: Effect of naringenin on intracerebroventricular streptozotocin-induced cognitive deficits in rat: a behavioral analysis.
abstract: Intracerebroventricular (ICV) injection of streptozotocin (STZ) causes cognitive impairment in rats. The beneficial effect of naringenin (NAR) was investigated on ICV STZ-induced learning, memory, and cognitive impairment in male rats. For this purpose, rats were injected with ICV STZ bilaterally, on days 1 and 3 (3 mg/kg). The STZ-injected rats received NAR (50 mg/kg/day p.o.) starting 1 day pre-surgery for 3 weeks. The learning and memory performance was assessed using passive avoidance paradigm, and for spatial cognition evaluation, radial eight-arm maze (RAM) task was used. It was found out that NAR-treated STZ-injected rats show higher correct choices and lower errors in RAM than vehicle-treated STZ-injected rats. In addition, NAR administration significantly attenuated learning and memory impairment in treated STZ-injected group in passive avoidance test. Therefore, these results demonstrate the effectiveness of NAR in preventing the cognitive deficits caused by ICV STZ in rats and its potential in the treatment of neurodegenerative diseases such as Alzheimer's disease.
authors.affiliation: Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. tmojarad@yahoo.com
authors.forename: Tourandokht
authors.initials: T
authors.lastname: Baluchnejadmojarad
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Roghani
mesh_terms: D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal / Q000187:drug effects*; D001921:Brain / Q000187:drug effects*; D004965:Estrogen Antagonists / Q000494:pharmacology; D044950:Flavanones / Q000494:pharmacology*; D007858:Learning / Q000187:drug effects*; D008297:Male; D008568:Memory / Q000187:drug effects*; D008569:Memory Disorders / Q000188:drug therapy*; D019636:Neurodegenerative Diseases / Q000188:drug therapy*; D051381:Rats; D017208:Rats, Wistar; D013311:Streptozocin / Q000633:toxicity*; D013997:Time Factors
chemical_list: D004965:Estrogen Antagonists; D044950:Flavanones; D013311:Streptozocin; C005273:naringenin