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Evaluation of a new approach to the safety assessment of biomaterials

, : Evaluation of a new approach to the safety assessment of biomaterials. Drug and Chemical Toxicology 9(3-4): 275-283

The effectiveness of a bacterial luminescence inhibition assay in assessing the toxicity of compounds which are released from biomaterials was evaluated. Luminescence from a strain of bacteria most closely resembling Photobacterium phosphoreum was measured. The concentration that inhibited luminescence by 50% (EC50) was determined for selected plasticizers, monomers and additives. The intraperitoneal (i.p.-ALD) and intravenous (i.v.-ALD) approximate lethal doses were determined using mice. By ranking the reference compounds toxic/non-toxic, a 37.5% agreement was obtained for the i.p.-ALD and i.v.-ALD toxicity data. While there was only a 12.5% agreement for the i.p. ALD and EC50 values, there was a 75% agreement between the i.v.-ALD and EC50 values. Although additional validation is required, these results provide preliminary indications that the bacterial luminescence inhibition assay is a promising alternative approach to the safety assessment of biomaterials.

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Accession: 005395330

PMID: 3816615

DOI: 10.3109/01480548608998280

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