In vivo and in vitro degradation of poly(3-hydroxybutyrate) in rat.
basic_science · Level V
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Abstract
The inflammatory activity and biodegradation of poly(3-hydroxybutyrate) were examined. Poly(3-hydroxybutyrate) sheet did not cause any inflammation in the chorioallantoic membrane of the developing egg. The i.v. injection of 14C-labelled poly(3-hydroxybutyrate) granules showed that 86, 2.5 and 2.4% of the total radioactivity administered were distributed in the liver, spleen and lung, respectively, and the radioactivity decreased slowly but steadily in most tissues examined during 2 month. Crude extracts of rat tissues showed that the activity degraded the poly(3-hydroxybutyrate) granules in vitro.
Medical subject headings
- Biocompatible Materials
- Hydroxybutyrates
- Polyesters