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Characterization of Absorbable Collagen Sponges as Recombinant Human Bone Morphogenetic Protein-2 Carriers by W Friess; H Uludag; S Foskett; R Biron; C Sargeant is a Pharmacology, Toxicology and Pharmaceutics article available to read on EtoBox.

What is Characterization of Absorbable Collagen Sponges as Recombinant Human Bone Morphogenetic Protein-2 Carriers about?

For clinical use recombinant human bone morphogenetic protein-2 (rhBMP-2) is soaked onto an absorbable collagen sponge (ACS) for bone regeneration. Therefore, loss of rhBMP-2 upon mechanical handling during implantation and a potential effect of the carrier on in vivo retention is of interest. The interactions between drug and carrier were looked at from the application mode and the amount of protein which can be mechanically expressed from the combination was investigated. The results indicated that rhBMP-2 binds to the collagen system. The most hydrophilic double extended homodimer showed the least binding affinity to ACS. By extending the waiting time between soaking and implantation, protein incorporation could be increased. In addition, the amount of rhBMP-2 which could be expressed was reduced by heavier ACS material and allowed for a shorter waiting period, especially at lower rhBMP-2 concentration. Crosslinking of ACS with formaldehyde led to reduced binding of rhBMP-2 to collagen either by direct hindrance of binding or reduction in swelling and number of binding sites available. Higher product pH or anion concentration enabled to increase rhBMP-2 incorporation but was lim

Who reads Characterization of Absorbable Collagen Sponges as Recombinant Human Bone Morphogenetic Protein-2 Carriers?

Author

W Friess; H Uludag; S Foskett; R Biron; C Sargeant

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-5173)

Published

1999

Language

EN

Field

Pharmacology, Toxicology and Pharmaceutics (Life Sciences)