Polymeric nanoparticle formulation of octapeptide (NP-OP): in vitro release and in vivo effect in common marmosets, Callithrix jacchus Linn.

Abstract:

:Octapeptide (OP)/FSH-Receptor Binding Inhibitor-8 (FRBI-8), is a synthetic peptide corresponding to N-terminal sequence of purified fraction of Follicle Stimulating Hormone Binding-Inhibitor (FSHBI), isolated earlier from human ovarian follicular-fluid. In order to avoid the repeated drug-administration, OP-loaded, polymeric polylactide (PLA) nanoparticle formulation (NP-OP), was developed using multiple-emulsion technique. This yielded an average particle size of 120 nm with 70% encapsulation-efficiency. In vitro release profile of NP-OP showed sustained release of OP for 21 days. In vivo anti-fertility studies were conducted in marmosets. Results indicated that control animals conceived in the same cycle while two of three treated animals failed to conceive in treatment cycle. The in vivo studies thus corroborate with in vitro release of OP, demonstrating its anti-fertility activity in 66% of animals.

journal_name

Indian J Exp Biol

authors

Nandedkar TD,Sagvekar P,Thakur B,Navlakhe R,Chitnis S,Mahale SD,D'Souza S,Patel KD,Vavia PR

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

1055-62

issue

12

eissn

0019-5189

issn

0975-1009

journal_volume

51

pub_type

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