title: The use of an in vitro-cultured porcine nasal mucosa model for the biocompatibility assessment of biodegradable magnesium.
abstract: The development of an in vitro-cultured porcine nasal mucosa model is described. The model was subsequently used for the biocompatibility testing of resorbable magnesium-based implants, which are intended for use in the nasal cavity of patients with chronic rhinosinusitis (CRS). Test specimens made from either pure magnesium or titanium were incubated with the mucosal tissue for 48 hours. Afterwards, tissue viability, PGE2, IL-6 and IL-8 release, magnesium ion release, succinate dehydrogenase activity, apoptosis and 14C amino acid incorporation, were determined. The results suggested favourable biocompatibility, even in the case of rapidly-degrading pure magnesium. However, presumed effects on protein synthesis and apoptosis could not be confirmed.
authors.affiliation: Department of Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine Hannover Foundation, Hannover, Germany. stephan.schumacher@tiho-hannover.de
authors.forename: Stephan
authors.initials: S
authors.lastname: Schumacher
authors.forename: Jessica
authors.initials: J
authors.lastname: Stahl
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Bäumer
authors.forename: Manfred
authors.initials: M
authors.lastname: Kietzmann
mesh_terms: D020341:Absorbable Implants; D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008422:Materials Testing / Q000379:methods*; D023421:Models, Animal; D009297:Nasal Mucosa / Q000166:cytology / Q000378:metabolism; D012220:Rhinitis / Q000628:therapy; D012852:Sinusitis / Q000628:therapy; D013552:Swine; D046509:Tissue Culture Techniques / Q000662:veterinary*
chemical_list: D000596:Amino Acids; D008274:Magnesium