We have located links that may give you full text access.
Comparative Study
Journal Article
Efficacy of oral lipid-based formulations of apomorphine and its diester in a Parkinson's disease rat model.
Journal of Pharmacy and Pharmacology 2017 September
OBJECTIVES: Apomorphine is used to symptomatically treat Parkinson's disease (PD). Oral delivery of apomorphine is generally limited by its short plasma half-life and a hepatic first-pass metabolism. This study was aimed at evaluating the behavioural response of apomorphine and its prodrug administered in oral lipid-based formulations.
METHODS: The behavioural response of apomorphine and its prodrug administered in oral lipid-based formulations was evaluated using a 6-hydroxydopamine-lesioned rat model simulating PD symptomatology. Apomorphine or dipalmitoyl apomorphine (DPA) was incorporated into different lipid-based formulations and orally administered (0.24 mmol/kg) to the PD rat model. The rotations by the rats were counted.
KEY FINDINGS: The duration of response lasted to about 2.5 h with oral apomorphine- and DPA-loaded o/w emulsion, while it was increased to 6 h when DPA was incorporated in self-emulsifying drug delivery systems compared to s.c. apomorphine (1 h). This suggests that the lipid-based formulations provide a sustained drug release allowing for a steady exposure to the brain.
CONCLUSIONS: Oral lipid-based apomorphine delivery has a potential in achieving a steady response, though at a higher dose possibly eliminating the need for frequent s.c. apomorphine administration.
METHODS: The behavioural response of apomorphine and its prodrug administered in oral lipid-based formulations was evaluated using a 6-hydroxydopamine-lesioned rat model simulating PD symptomatology. Apomorphine or dipalmitoyl apomorphine (DPA) was incorporated into different lipid-based formulations and orally administered (0.24 mmol/kg) to the PD rat model. The rotations by the rats were counted.
KEY FINDINGS: The duration of response lasted to about 2.5 h with oral apomorphine- and DPA-loaded o/w emulsion, while it was increased to 6 h when DPA was incorporated in self-emulsifying drug delivery systems compared to s.c. apomorphine (1 h). This suggests that the lipid-based formulations provide a sustained drug release allowing for a steady exposure to the brain.
CONCLUSIONS: Oral lipid-based apomorphine delivery has a potential in achieving a steady response, though at a higher dose possibly eliminating the need for frequent s.c. apomorphine administration.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app