The effect of childcare activities on cognitive status and depression in older adults: gender differences in a 4.4-year longitudinal study.

Objectives: Although involvement in childcare activities seems to promote better physical and mental health in older adults, its impact on cognitive status and depression has not yet been fully elucidated. We aimed to analyze the association between engagement in childcare activities and cognitive and psychological status over a 4.4-year period in community-dwelling older adults.

Monitoring Plasma Levels of Donepezil, 5-O-Desmethyl-Donepezil, 6-O-Desmethyl-Donepezil, and Donepezil-N-Oxide by a Novel HPLC Method in Patients With Alzheimer Disease.

Background: In humans, donepezil (D) is metabolized to 5-O-desmethyl-donepezil (5DD), 6-O-desmethyl-donepezil (6DD), and donepezil-N-oxide (DNox). Although 6DD and DNox are pharmacologically active, the activity of 5DD is unknown. At present, no routine methods are available to detect D and its 3 metabolites simultaneously.