Polymers for colon specific drug delivery.

作者: Etienne Schacht , An Gevaert , El Refaie Kenawy , Koen Molly , Willy Verstraete

DOI: 10.1016/0168-3659(95)00184-0

关键词:

摘要: Azo-linked polymeric prodrugs of 5-aminosalicylic acid (5-ASA) were prepared and evaluated in simulated human intestinal microbial ecosystem. Release 5-ASA was demonstrated. Polyamides containing azo groups the backbone tested vitro a reductive buffer or bioreactor medium. It demonstrated that for hydrophobic polymer reduction stops at hydrazine stage whereas hydrophilic analogue with formation amines occurred.

参考文章(45)
MURRAY SAFFRAN, G. SUDESH KUMAR, DOUGLAS C. NECKERS, JAMES PEÑA, RICHARD H. JONES, JAMES B. FIELD, Biodegradable azopolymer coating for oral delivery of peptide drugs. Biochemical Society Transactions. ,vol. 18, pp. 752- 754 ,(1990) , 10.1042/BST0180752
Helle Brøndsted, Jindřich Kopeček, Hydrogels for site-specific drug delivery to the colon: in vitro and in vivo degradation. Pharmaceutical Research. ,vol. 9, pp. 1540- 1545 ,(1992) , 10.1023/A:1015847921435
János Pató, Mária Azori, Ferenc Tüdös, Polymeric prodrugs, 1. Synthesis by Direct Coupling of Drugs Die Makromolekulare Chemie, Rapid Communications. ,vol. 3, pp. 643- 647 ,(1982) , 10.1002/MARC.1982.030030911
Tetsuo Miyadera, Biological formation and reactions of hydrazo, azo and azoxy groups John Wiley & Sons, Ltd.. pp. 495- 539 ,(2004) , 10.1002/0470023414.CH13
Joseph P. Brown, Reduction of Polymeric Azo and Nitro Dyes by Intestinal Bacteria Applied and Environmental Microbiology. ,vol. 41, pp. 1283- 1286 ,(1981) , 10.1128/AEM.41.5.1283-1286.1981
D.P. Nelson, L.J. Mata, Bacterial Flora Associated With the Human Gastrointestinal Mucosa Gastroenterology. ,vol. 58, pp. 56- 61 ,(1970) , 10.1016/S0016-5085(70)80093-2
Dominique Callant, Etienne Schacht, Macromolecular prodrugs of 5‐aminosalicylic acid, 1. Azo‐conjugates Macromolecular Chemistry and Physics. ,vol. 191, pp. 529- 536 ,(1990) , 10.1002/MACP.1990.021910308
Pavla Kopečková, Jindřich Kopeček, Release of 5‐aminosalicylic acid from bioadhesive N‐(2‐hydroxypropyl)methacrylamide copolymers by azoreductases in vitro Macromolecular Chemistry and Physics. ,vol. 191, pp. 2037- 2045 ,(1990) , 10.1002/MACP.1990.021910906
Thomas Honohan, Frances E. Enderlin, Bruce A. Ryerson, Thomas M. Parkinson, Intestinal Absorption of Polymeric Derivatives of the Food Dyes Sunset Yellow and Tartrazine in Rats Xenobiotica. ,vol. 7, pp. 765- 774 ,(1977) , 10.3109/00498257709038706