Thymopentin loaded microsphere preparation by w/o/w emulsion technique: in vitro/ex vivo evaluation.

Abstract:

:Poly-D,L-lactide (PDLLA) and polylactide-co-glycolide (PLGA) microspheres containing thymopentin have been prepared by a water-in-oil-in-water-emulsion/solvent evaporation technique. The goal is to stabilize the active compound thymopentin, and to prolong its therapeutic activity, by embedding the drug in a polymeric matrix. The microspheres obtained have been characterized for their morphology and drug content. In-vitro dissolution tests have been performed on the microspheres. Results show that the type of polymer employed (PDLLA or PLGA) does not seem to affect microsphere morphology, while in-vitro dissolution profiles are greatly influenced by the composition of polymer matrix. Ex-vivo evaluation of PLGA microspheres performed on mouse thymocites shows that biological activity of Thymopentin is maintained after loading into PLGA microspheres.

journal_name

J Microencapsul

authors

Conti B,Panico M,Ventura CA,Giunchedi P,Puglisi G

doi

10.3109/02652049709051134

subject

Has Abstract

pub_date

1997-05-01 00:00:00

pages

303-10

issue

3

eissn

0265-2048

issn

1464-5246

journal_volume

14

pub_type

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