The Effect of Media Composition, pH, and Formulation Excipients on the In Vitro Lipolysis of Self-Emulsifying Drug Delivery Systems (SEDDS)

2010 ◽  
Vol 31 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Hazem Ali ◽  
Akhtar Siddiqui ◽  
Sami Nazzal
2021 ◽  
Vol 110 (1) ◽  
pp. 208-216
Author(s):  
Margherita Falavigna ◽  
Mette Klitgaard ◽  
Ragna Berthelsen ◽  
Anette Müllertz ◽  
Gøril Eide Flaten

2020 ◽  
Vol 317 ◽  
pp. 375-384 ◽  
Author(s):  
Thuy Tran ◽  
Peter Bønløkke ◽  
Cristina Rodríguez-Rodríguez ◽  
Zeynab Nosrati ◽  
Pedro Luis Esquinas ◽  
...  

Pharmaceutics ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 489
Author(s):  
Mette Klitgaard ◽  
Anette Müllertz ◽  
Ragna Berthelsen

The aim of this study was to design an in vitro lipolysis-permeation method to estimate drug absorption following the oral administration of self-nanoemulsifying drug delivery systems (SNEDDSs). The method was evaluated by testing five oral formulations containing cinnarizine (four SNEDDSs and one aqueous suspension) from a previously published pharmacokinetic study in rats. In that study, the pharmacokinetic profiles of the five formulations did not correlate with the drug solubilization profiles obtained during in vitro intestinal lipolysis. Using the designed lipolysis-permeation method, in vitro lipolysis of the five formulations was followed by in vitro drug permeation in Franz diffusion cells equipped with PermeaPad® barriers. A linear in vivo–in vitro correlation was obtained when comparing the area under the in vitro drug permeation–time curve (AUC0–3h), to the AUC0–3h of the plasma concentration–time profile obtained from the in vivo study. Based on these results, the evaluated lipolysis-permeation method was found to be a promising tool for estimating the in vivo performance of SNEDDSs, but more studies are needed to evaluate the method further.


2014 ◽  
Vol 16 (3) ◽  
pp. 539-549 ◽  
Author(s):  
Nicky Thomas ◽  
Katharina Richter ◽  
Thomas B. Pedersen ◽  
René Holm ◽  
Anette Müllertz ◽  
...  

2013 ◽  
Vol 30 (10) ◽  
pp. 2694-2705 ◽  
Author(s):  
Patrick B. Memvanga ◽  
Pierre Eloy ◽  
Eric M. Gaigneaux ◽  
Véronique Préat

Pharmaceutics ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 861
Author(s):  
Jacopo Cardellini ◽  
Arianna Balestri ◽  
Costanza Montis ◽  
Debora Berti

In the past decade(s), fluorescence microscopy and laser scanning confocal microscopy (LSCM) have been widely employed to investigate biological and biomimetic systems for pharmaceutical applications, to determine the localization of drugs in tissues or entire organisms or the extent of their cellular uptake (in vitro). However, the diffraction limit of light, which limits the resolution to hundreds of nanometers, has for long time restricted the extent and quality of information and insight achievable through these techniques. The advent of super-resolution microscopic techniques, recognized with the 2014 Nobel prize in Chemistry, revolutionized the field thanks to the possibility to achieve nanometric resolution, i.e., the typical scale length of chemical and biological phenomena. Since then, fluorescence microscopy-related techniques have acquired renewed interest for the scientific community, both from the perspective of instrument/techniques development and from the perspective of the advanced scientific applications. In this contribution we will review the application of these techniques to the field of drug delivery, discussing how the latest advancements of static and dynamic methodologies have tremendously expanded the experimental opportunities for the characterization of drug delivery systems and for the understanding of their behaviour in biologically relevant environments.


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