International Journal of Pharmaceutical Sciences and Nanotechnology (IJPSN)

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The potential of dapsone loaded characterized chitosan nanoparticles (CSNP) as a targeted delivery was investigated in memory deficits associated with dementia of Alzheimer disease type. Streptozotocin (STZ) in two doses (3 mg/kg on 1st and 3rd day) via intracerebroventricular route was used to induce dementia in swiss albino mice. The results showed that administration of STZ significantly impaired learning and memory based on Morris water-maze (MWM) test and raised myeloperoxidase (MPO) level along with neutrophils infiltration density (based on brain myeloperoxidase activity along with histological studies). Dapsone (1 mg/kg & 2 mg/kg for 11 days) loaded CSNP significantly attenuated STZ induced memory impairment as well as brain MPO activity along with increased neutrophils infiltration.
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