An extract from the leaves of the Ginkgo biloba tree can reduce the risk of aggressive cancer. Mice who were treated with Ginkgo biloba extract had decreased expression of a cell receptor associated with invasive cancer.
This slowed the growth of breast tumors by 80 percent for as long as the extract was used, and also reduced the size of the brain tumors. The brain tumors, however, were only inhibited for 50 days, despite continuous treatment.
PBR
It's been well known for some time that gingko interacts with a peripheral-type benzodiazepine receptor (PBR) that carries cholesterol into the mitochondria, helping to regulate growth in some cells. Some highly invasive cancer cells over-express PBR, which may be why gingko is effective against some forms of cancer.
Cancer, Memory, Alzheimer's
Over-expression of PBR is also associated with several neurological disorders, which could account for ginkgo's widespread use as a herbal treatment for dementia. Many believe the ginkgo enhances memory, and it is also currently being tested as a potential treatment for Alzheimer's disease.