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A double-blind, placebo-controlled study of Ginkgo biloba extract (tanakan) in elderly outpatients with mild to moderate memory impairment

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Shorter trials may not capture the full titration effects

Its value within the broader literature on glutathione peptides lies in the way it operationalizes GSH's biochemical identity as a peptide: rather than treating it as a generic antioxidant, the study designs an intervention around GSH's specific role as a substrate in enzymatic recycling pathways and measures outcomes that are mechanistically downstream of that function