Colloidal metallic gold is not bio-inert
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Metallic gold (Au°) is a likely biotransformation product of monovalent gold, Au(I) whenever it is dissociated from in vivo ligands, Au° being formed either by bioreduction or by spontaneous dismutation (with co-production of trivalent gold). This review discusses the preparation and some biologically relevant properties of colloidal metallic gold (CMG) in its nano-particulate form. Tyndall’s purple, a well characterised preparation of CMG, shows potent anti-arthritic activity in rats, approximately 103 times that of sodium aurothiomalate (Myocrysin). Even more remarkable is its broader spectrum of action in rats compared to this classic DMARD.
KeywordsGold Nanoparticles Colloidal Gold Pristane Metallic Gold Dark Agouti
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