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Media per prove di dissoluzione in vitro di CDDS a base di polisaccaridi

Media per prove di dissoluzione in vitro di CDDS a base di polisaccaridi

Ashwini Shivapooja / Niranjan Goud Kotla / Yashwant Y.

100,03 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Farmacología
ISBN:
9786630197365
100,03 €
IVA incluido
Disponible

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Ad oggi, la ricerca di media di dissoluzione bio-rilevanti specifici per il colon, economici e che evitino l’uso di animali, rappresenta da molti decenni una delle principali sfide per gli scienziati farmaceutici. È infatti difficile riprodurre le caratteristiche dinamiche e la diversità ecologica del colon all’interno di un recipiente di dissoluzione. Consapevoli dell’enorme microflora del colon, le specie predominanti Bacteroides, Bifidobacterium, Eubacterium, Streptococcus e Lactobacillus sono state coltivate in latte scremato in polvere al 12% p/v e miele di grado 'A' al 5% p/v. La coltura probiotica è stata aggiunta ai mezzi di dissoluzione per testare il rilascio del farmaco da formulazioni a base di polisaccaridi. Per valutare il rilascio del farmaco dalle formulazioni destinate alla somministrazione nel colon è stato utilizzato l’apparato di dissoluzione USP I/II con metodo di dissoluzione a pH gradiente. Il rilascio del farmaco dai granuli di 5-fluorouracile e dalle compresse di metronidazolo è stato valutato in condizioni gastriche e dell’intestino tenue, nonché in un ambiente colico simulato che includeva mezzi fecali umani e cecali di ratto esistenti, e confrontato con nuovi mezzi probiotici. Il presente metodo può essere applicato con successo per i test di rilascio del farmaco di qualsiasi formulazione orale destinata alla somministrazione nel colon.

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