Marisol Vacacela - Academia.edu (original) (raw)
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Papers by Marisol Vacacela
CNS & Neurological Disorders - Drug Targets
Background: Donepezil (DPZ) is widely prescribed as a specific and reversible acetylcholinesteras... more Background: Donepezil (DPZ) is widely prescribed as a specific and reversible acetylcholinesterase inhibitor for the symptomatic treatment of mild to moderate Alzheimer's disease (AD). Objective: Considering the therapeutic potential of DPZ and the advantages offered by the intranasal route as an alternative for drug administration, the aim of this study was the development and characterization of a DPZ microemulsion (ME) for nose-to-brain delivery. Method: The ME was developed by construction of pseudoternary phase diagrams and characterized by dynamic light scattering and transmission electron microscopy. Flow properties and viscosity, as well as optical stability and stability under storage at different temperatures were evaluated. Finally, in vitro release and ex vivo permeation studies through porcine nasal mucosa were accomplished. Results: A transparent and homogeneous DPZ-ME (12.5 mg/ml) was obtained. The pH and viscosity were 6.38 and 44.69 mPa·s, respectively, indicati...
CNS & Neurological Disorders - Drug Targets
Background: Donepezil (DPZ) is widely prescribed as a specific and reversible acetylcholinesteras... more Background: Donepezil (DPZ) is widely prescribed as a specific and reversible acetylcholinesterase inhibitor for the symptomatic treatment of mild to moderate Alzheimer's disease (AD). Objective: Considering the therapeutic potential of DPZ and the advantages offered by the intranasal route as an alternative for drug administration, the aim of this study was the development and characterization of a DPZ microemulsion (ME) for nose-to-brain delivery. Method: The ME was developed by construction of pseudoternary phase diagrams and characterized by dynamic light scattering and transmission electron microscopy. Flow properties and viscosity, as well as optical stability and stability under storage at different temperatures were evaluated. Finally, in vitro release and ex vivo permeation studies through porcine nasal mucosa were accomplished. Results: A transparent and homogeneous DPZ-ME (12.5 mg/ml) was obtained. The pH and viscosity were 6.38 and 44.69 mPa·s, respectively, indicati...