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Purpose. Although many catechol derivatives are potent stimulators of Nerve Growth Factor synthesis in L-M cells, not much is known about their mechanism of action. In order to obtain a Quantitative Structure Activity Relationship (QSAR), AM1 quantum mechanical calculations were performed on a group of 23 catechol derivatives with different levels of activity. Methods. A set of 18 parameters/...
Purpose. The assessment of the effects of nasal absorption enhancers on the rat nasal epithelium and membrane permeability in vivo after a single nasal dose of the enhancers. Methods. The release of marker compounds (protein, cholesterol and acid phosphatase) from the nasal epithelium was measured using a lavage technique. The nasal membrane permeability was determined after intravenous administration...
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