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An inhibitor of xanthine dehydrogenase (XDH), allopurinol, and uricosuric agents, probenecid and benzbromarone, have been used for more than 20 years in the treatment of hyperuricemia and gout. However, they are inconvenient in some situations. With regard to allopurinol, the dosage reduction is
The term PEGylation describes the modification of biological molecules by covalent conjugation with polyethylene glycol (PEG), a non-toxic, non-immunogenic polymer, and is used as a strategy to overcome disadvantages associated with some biopharmaceuticals. PEGylation changes the physical and
In contrast to the accepted general assumption that polyethylene glycol (PEG) is non-immunogenic and non-antigenic, animal studies clearly showed that uricase, ovalbumin and some other PEGylated agents can elicit antibody formation against PEG (anti-PEG). In humans, anti-PEG may limit therapeutic