QUESTION Does Ginkgo biloba reduce incident dementia and Alzheimer disease in elderly people with normal cognition or mild cognitive impairment? METHODS Design: randomised placebo controlled trial (Ginkgo Evaluation of Memory [GEM] study). ClinicalTrials.gov NCT00010803. Allocation: unclear allocation concealment.* Blinding: blinded (patients, clinicians, and outcome assessors).* Follow-up peri...

Ginkgo biloba leaf extract has been shown to increase the incidence in liver tumors in mice in a 2-year bioassay conducted by the National Toxicology Program. In this study, the DNA damaging effects of Ginkgo biloba leaf extract and many of its constituents were evaluated in human hepatic HepG2 cells and the underlying mechanism was determined. A molecular docking study revealed that quercetin,...

Ginkgo biloba has been used in traditional Chinese medicine for about 5000 years. A standardized preparation, EGb 761 has been recently prepared. The pharmacologically active constituents, flavonol glycosides and the terpene lactones are standardized. The terpene lactones comprise of ginkgolides A, B, C and bilobalides. The extract scavenges excess free radicals and pretreatment with EGb 761 re...

Extracts of the leaves of the Ginkgo biloba tree (ginkgo) have been used in China for medicinal purposes for hundreds of years. Research performed during the past fifteen years suggests that ginkgo may be of value in the treatment of age-related physical and mental deterioration, dementia, peripheral vascular disease, and organic impotence. Ginkgo may also reduce the severity of depression in i...

The Ginkgo biloba special extract EGb 761 seems to produce neuroprotective effects in neurodegenerative diseases of multifactorial origin. There is still debate about the efficacy of Ginkgo biloba special extract EGb 761 compared with second-generation cholinesterase inhibitors in the treatment of mild to moderate Alzheimer's dementia. Our aim is to assess the efficacy of the Ginkgo biloba spec...

OBJECTIVES To assess the efficacy of the Ginkgo biloba in patients with dementia of the Alzheimer type in slowing down the disease's degenerative progression and the patients' cognitive impairment compared with rivastigmine. METHODS Total 56 patients aged 50-75 years, suffering from dementia, were allocated into one of the two treatments: group 1) Ginkgo biloba (120 mg daily dose); group 2) r...

PURPOSE The optimal treatment of intermittent claudication has not yet been identified. Ginkgo biloba extract has been reported to have beneficial effects. We performed a meta-analysis of the efficacy of Ginkgo biloba extract for intermittent claudication based on the results of randomized, placebo-controlled, double-blind trials. METHODS Literature searches of MEDLINE, EMBASE, BIOSIS, AMED, ...

Commercially available medicinal plant extracts such as Ginkgo biloba leaf extract show no consistent pattern of clinical benefit for people with dementia or cognitive impairment, and have been suggested to be toxic to cells at higher doses. However, medicinal plants may contain other more efficient bioactive molecules apart from the well-known flavonoids and terpenoids. Recombinant therapeutic...

OBJECTIVE To determine the efficacy of Ginkgo biloba for the prevention of dementia in individuals without dementia. MATERIAL AND METHOD English databases including Medline, Embase, Cochrane Library and PsycINFO, were searched, and randomized double-blind controlled studies comparing Ginkgo biloba with placebo in prevention of dementia were considered. Two trials met inclusion criteria. Metho...