
Source:
Ginko biloba (Ginko biloba ) - trees are found in China, Korea, southern
France, and the southeast part of the United States. Interestingly,
Ginko Biloba trees can live over one thousand years. These trees as
might be expected are practically immune to pollution, drought, and
insects. The Ginko Biloba tree has distinctive fan shaped leaves with
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Traditional uses:
Ginkgo has been used by the Chinese for thousands of years. Ginko
biloba was so important to ancient Chinese culture that the tree
was cultivated inside the walls of their fortresses. The Chinese
would take Ginko in order to promote a generalized feeling of well
being and as a stimulus to improve cognitive functioning.
Physiology:
Researchers believe that there are several substances that
are important in promoting the positive effects of Ginko biloba
i.e. flavanoids (ginko-flavone glycosides) and terpenes (ginkgolides
and bilobalide). Flavanoids are credited with neutralizing the free
radicals and improving circulation by causing the dilating the small
blood vessels, thus, protecting the brain from oxygen deprivation.
Clinical
Studies:
The main focus of most of the clinical studies concerning Ginko
biloba is centered around concentration and memory. Several studies
have shown significant improvements in both memory and concentration
versus placebo. Israel ET. Ginkgo biloba and memory training. Psychol
Med. Paris: 1987;19(8):1431-1439. Grässel. Effect of Ginkgo
biloba extract on mental performance. Double-blind study using computerized
measurement conditions in patients with cerebral insufficiency.
Fortschr Med. 1992;110(5):73-78.
Modern
day uses:
Today, Ginko biloba is prescribed by physicians and herbal specialist
for the the following positive effects:
- Increased circulation -
Ginko biloba increases circulation to both the brain and extremities.
Physicians prescribe the herb for the treatment of claudication
(a squeezing or tight pain in the foot, calf, thigh, or buttock
that occurs during exercise secondary to poor circulation). Ginko
bliloba inhibit platelet-activating-factor (PAF) promoting circulation.
- Cognitive functioning - the herb as shown to
help individuals with age relate cognitive deficits from Alzheimer's
disease. In addition, the herb is know being recommended by physicians
along with Vitamin E for the elderly to delay the onset of Alzheimer's
disease. Gingo biloba is also well-known for its effect on memory
and thinking in the general population, an estimatéd 11
million American currently take Ginko biloba to improve cognitive
function.
- Antioxidant - acts as a powerful antioxidant
and contributes to the oxidation of free radicals. Ginkgo also
acts as a powerful antioxidant and contributes to the oxidation
of free radicals which are believed to contribute to premature
aging and dementia
- Tinnitus - The herb is reported to decrease
the symptoms of tinnitus (ringing in the ears) and problems with
balance secondary to iner ear complications.
- Antidepressant - Ginko biloba has proved to
b successful in treating
Precautions
and/or adverse effects:
Individuals with preexisting medical conditions should consult with
their physician particularly if they are taking prescription or
over-the-counter-medications or supplements. Women who are pregnant
or breast feeding and children should also consult with there physician
prior to taking any new supplements. More specifically, mild stomach
irritation and headaches are reported by a small percentage of individuals
using Ginko biloba. Reported side effects usually resolve within
1-2 days upon discontinuation of the herbal supplement. Pregnant
and breast feeding women should refrain from using Ginko biloba
unless approved by their OB/GYN.
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