The world’s most ancient tree has something to teach us, and give to us, as far as promoting brain health and longevity goes.
Considering the fact that gingko biloba is the oldest known tree in existence (deemed for this reason a “living fossil“), isn’t it poetic how this plant has also been used to promote long life as both a food and medicine in traditional cultures as well?
Clearly, this plant has figured out a way to optimize longevity in face of many of the same adversities humans face, e.g. predators, infections, fluctuations in nutrient availability and climate, etc. And so, by consuming that plant, could it not lend some of its power and (phytochemical) wisdom to those imbibing it, as was once commonly believed by ‘pre-scientific’ cultures throughout the world who considered plants their “allies”?
In ancient times, if something worked in practice it was considered validated by that fact. This was no academic affair, as even a slight advantage or disadvantage in immunity or metabolism could translate into life or death consequences. Of course, they didn’t have the luxury nor means to employ randomized, double-blind, placebo controlled trials, before trying out a medical intervention.
And yet, today we have the lens of science to plumb the depths of traditional approaches to healing, in order to ascertain the many ways a natural substance may protect against disease as well as the plausible mechanisms with which they do so. And this enterprise has gifted us with a massive database of information that can help us to attain even greater appreciation for the power of traditional medicine to not only heal, but do so in a way that is often superior to drugs within the conventional pharmacopeia. Gingko biloba, I believe, is an ideal example of this…
The first time I really started to grasp Gingko biloba’s power to heal the brain occurred when I stumbled upon a 2006 paper published in the European Journal of Neurology which described a 24-week randomized, placebo-controlled, double-blind study showing an extract of this plant was as clinically effective as the blockbuster donepezil for mild-to-moderate Alzheimer’s disease:
“Our study suggests that there is no evidence of relevant differences in the efficacy of EGb 761 [gingko biloba] and donepezil in the treatment of mild to moderate Alzheimer’s dementia, so the use of both substances can be justified. In addition, this study contributes to establish the efficacy and tolerability of the Ginkgo biloba special extract E.S. in the dementia of the Alzheimer type with special respect to moderately severe stages. “[i]
Amazingly, this was not the first study to ascertain significant medicinal properties in gingko biloba. In fact, if you peruse our database on Greenmedinfo.com on gingko you will find it has been studied to have value in over 100 different diseases, and has been identified to have at least 50 distinct beneficial physiological actions. Isn’t this amazing? Consider that the average FDA approved drug has 75 known adverse health effects for every purported health benefit.
Clearly, a plant with this much power to heal, including the ability to compete with a multi-billion dollar drug in ameliorating what is considered “incurable” neurodegenerative disease – Alzheimer’s disease— is worth exploring in greater depth.
As far as its brain regenerative properties, it has already been known that gingko can stimulate brain-derived neutrophic factor (BDNF), a protein found in the brain and in the peripheral nervous system which is essential in the regulation, growth and survival of brain cells, and which is especially important for long-term memory. The ability to increase BDNF, therefore, implies it will improve brain and cognitive function. But this, alone, does not reveal the whole story on why gingko is so special, as a wide range of substances are capable of increasing BDNF, including coffee, grape seed extract, green tea, and even aerobic exercise.
Only recently a new mechanism behind gingko biloba’s brain and neurological tissue healing properties been revealed in the publication of an article in Cell and Molecular Neurobiology titled, “Ginkgo Biloba Extract Enhances Differentiation and Performance of Neural Stem Cells in Mouse Cochlea.”
In the new study researchers tested the premise that ginkgo biloba’s wide range of benefits in the treatment of neural damage and disorders is due, in part, to its ability to positively modulate neural stem cells (NSC), a subpopulation of cells within the brain that as multipotent cells are capable of generating the many different types (phenotypes) of cells that make up the brain. Their results, using mouse cochlea-derived neural stem cells, showed a number of ways that gingko biloba exact (GBE) resulted in a beneficial effect:
“Our data showed that GBE treatment promotes cell survival and NSC proliferation. In addition, GBE treatment also increases NSC differentiation to neurons and enhances the performance of mature neural networks evident by the increased frequency of calcium oscillation. Moreover, neurite outgrowth is also dramatically increased upon GBE treatment. Overall, our study demonstrates the positive regulatory role of GBE in NSC proliferation and differentiation into functional neurons in vitro, supporting the potential therapeutic use of GBE in hearing loss recovery.”
When one figures in the broad range of ways in which gingko can promote brain health, including increasing circulation to the brain, reducing brain inflammation and oxidative stress, increasing in BDNF, and now stimulating brain stem cell mediated neuronal regeneration and improved function, it may begin to provide practitioners with an ideal drug alternative in age-related neurological and cognitive problems.
It should be noted that neural stem cell stimulation and subsequent brain repair has also been observed in preclinical research with a little known component of turmeric known as ar-turmerone, which is found in whole turmeric but not in the increasingly popular 95% standardized curcumin extracts of turmeric. It is likely that many compounds we consume daily, also have brain regenerative properties. Indeed, we wrote about some of these “nerve regenerating” natural substances in our article 6 Bodily Tissues Regenerated Through Nutrition, if you would like to learn more.
[Note: Gingko biloba seeds and to a lesser extent leaves contain naturally occurring gingkotoxin, which is a neurotoxin structurally related to pyroxidine (vitamin B6) and therefore capable of blocking its activity as an anti-vitamin. While the toxicological significance of gingkotoxin in leaves in the amounts found in dietary supplements is considered relatively insignificant, caution should be exercised in the selection of a brand. Ideally, the company is assaying gingkotoxin levels assuring the lowest possible level available.]
[i] M Mazza, A Capuano, P Bria, S Mazza. Ginkgo biloba and donepezil: a comparison in the treatment of Alzheimer’s dementia in a randomized placebo-controlled double-blind study. Eur J Neurol. 2006 Sep;13(9):981-5. PMID: 16930364
Sayer Ji is founder of Greenmedinfo.com, on the Board of Governors for the National Health Federation, and Fearless Parent, Steering Committee Member of the Global GMO Free Coalition (GGFC), a reviewer at the International Journal of Human Nutrition and Functional Medicine.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of GreenMedInfo or its staff.
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