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Purpose. A previous study from our group has shown that in theacidic microclimate of poly(lactide-co-glycolide) (PLGA) implants,encapsulated BSA forms insoluble noncovalent aggregates and ishydrolyzed during in vitro release. Incorporation of Mg(OH)2 stronglyinhibits these mechanisms of instability and facilitates continuousprotein release. The purpose of this study was to determine the proteinstabilization...
In this review the current knowledge of protein degradation during preparation, storage and release from poly(lactic-co-glycolic acid) (PLGA) microparticles is described, as well as stabilization approaches. Although we have focussed on PLGA microparticles, the degradation processes and mechanisms described here are valid for many other polymeric release systems. Optimized process conditions as well...
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