David W. Mason

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Biodegradable controlled-release microsphere systems made with the biocompatible biodegradable polyester excipient poly [DL lactide-co-glycolide] constitute an exciting new technology for drug delivery to the central nervous system (CNS). The present study describes functional observations indicating that implantation of dopamine (DA) microspheres(More)
Biodegradable microspheres made with poly-[D,L-lactide-co-glycolide] represent an evolving technology for drug delivery into the central nervous system. Even though these microspheres have been shown to be engulfed by astrocytes in vitro, the purpose of the present study was to track the fate of biodegradable microspheres in vivo. This was accomplished(More)
Biodegradable controlled-release microcapsule systems made with the biocompatible biodegradable polyester excipient poly [DL-lactide-co-gly-colide] constitute an exciting new technology for drug delivery to the central nervous system (CNS). The present study describes functional observations indicating that implantation of dopamine (DA) microcapsules(More)
Injectable local drug delivery formulations-so-called microspheres have recently been developed, in which drugs are microencapsulated within biocompatible and biodegradable copolymer excipients like poly[DL-lactide-co-glycolide]. In view of its potential therapeutical usefulness, we have studied the microsphere methodology as a means to substitute for(More)
The Canadian Forces (CF) air mobility community is facing a period of considerable transition over the next decade or so as its fixed wing airlift capability, represented primarily by the aging C-130 fleet of E- and H-model Hercules and a fleet of five militarized Airbus 310 aircraft, will transform into a modernized fleet augmented with Boeing C-17(More)
Biodegradable controlled-release microsphere systems made with the biocompatible biodegradable polyester excipient poly(DL-lactide-co-glycolide) constitute an exciting new technology for drug delivery to the central nervous system (CNS). Implantable controlled-release microspheres containing dopamine (DA) or norepinephrine (NE) provide a novel means to(More)
Biodegradable controlled-release systems constitute an exciting new technology for drug delivery to the central nervous system (CNS). The present study describes functional and histochemical observations, indicating that implantation of DA microcapsules into striatal tissue assures a prolonged release of the transmitter in situ. This technology has(More)
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