Ginkgo Biloba
Ginkgo Biloba Extract (Leaves) Japan (Ginkgo biloba)
A
most popular longevity tonic in Europe, China and Japan. Unique antioxidant
phytonutrients protect Ginkgo's genetic material and cells so the tree
can live past 1,000 years of age. Reduces dangerous blood platelet aggregation
(makes blood less sticky) restoring youthful circulation and oxygen
delivery. Increases peripheral circulation and reduces associated tingling.
Strengthens mental performance, memory and concentration. Improved circulation
naturally relieves hemorrhoids, edema and circulatory-related erectile
dysfunction. Tinnitus, vertigo and dizziness often diminish. Excellent
for high altitude physical exertion. Particularly helpful for senility
and Alzheimer's. Bioflavonoids are always useful in allergies, asthma
and inflammations.
24% Ginkgoflavoglycosides, Kaempferol, Bioflavonoids, Quercetin, Isorhamnetin,
Proanthocyanidins ("pycnogenols"), Terpenes, Ginkgolides &
Bilobalides.
Ginkgo biloba is commonly used in the treatment of early-stage
Alzheimer's disease, vascular dementia, peripheral claudication, and tinnitus of
vascular origin. Multiple trials investigating the efficacy of ginkgo for
treating cerebrovascular disease and dementia have been performed, and
systematic reviews suggest the herb can improve the symptoms of dementia. Ginkgo
is generally well tolerated, but it can increase the risk of bleeding if used in
combination with warfarin, anti-platelet agents, and certain other herbal
medications.
Ginkgo biloba L. (previously Salisburia adiantifolia) common
names: ginkgo, maidenhair tree, 40 crowns tree; there are many Chinese names; in
Japan called icho, and the fruit is called ginnan. Ginkgo biloba is the
sole living member of a once great and dominant race of plants. It is thus a
most precious and tenuous link between the present and remote past.
This popular herbal medicine is extracted from the fan-shaped leaves of the
ancient ginkgo biloba tree, a species that has survived in China for more than
200 million years and now grows throughout the world. (The leaves are double,
or bi-lobed; hence the name biloba.) Long used in traditional Chinese
medicine, it is only in the last few decades that the medicinal uses for the
herb have been studied in the West.
Recently ginkgo has received a great deal of attention for its potential as
a memory booster. But while the herb has been found to help with age-related
memory loss, claims that it's a "smart pill" and universally useful are
dubious. Studies do indicate that the herb can have beneficial effects on the
circulatory and central nerve systems, however, and it has been shown to act
as an antioxidant as well.
An extract of ginkgo biloba extract (GBE) is used to make the supplement.
It is obtained by drying and milling the leaves and then extracting their
active ingredients. When buying supplements, look for preparations containing
GBE to be sure you get the greatest benefit.
Health Benefits
By regulating the tone and elasticity of blood vessels, ginkgo increases blood
flow to the brain and extremities, making it particularly useful for
circulatory ailments. Research has also shown that ginkgo can enhance the
nervous system by promoting the delivery of additional oxygen and blood sugar
(glucose) to nerve cells. As an antioxidant, ginkgo mops up the damaging
compounds known as free radicals and aids in cell maintenance.
Specifically, ginkgo may help to:
- Slow the progression of Alzheimer's symptoms. Controlled
studies have shown that because ginkgo aids blood flow to the brain,
it can improve memory in some people with this memory-robbing condition.
Findings indicate that it is people already suffering from Alzheimer's
(and other age-related memory problems) who benefit most, not those
who are healthy. In a 12-month study of 202 patients with dementia,
many of whom also had Alzheimer's, those given 120 mg of ginkgo biloba
extract a day experienced a greater improvement (or stabilization
in their mental and social functions) than those given a placebo.
The effects were modest and of limited duration, however.
- Relieve depression, anxiety, headaches, ringing in the ears (tinnitus),
and dizziness. Each of these ailments--like Alzheimer's--has been
linked to reduced blood flow to the brain. In older adults in particular,
this problem is often caused by cholesterol buildup in the arteries.
By improving blood circulation (including that to the brain), ginkgo
may be useful for treating these disorders in older people especially.
- Alleviate the symptoms of Raynaud's disease and intermittent
claudication. By improving blood circulation to the extremities,
ginkgo helps ease the painful coldness in the hands and feet that
is associated with this ailment. It can also reduce the calf cramping
and leg weakness of intermittent claudication, a circulatory problem
caused by hardening of the leg arteries.
- Reduce macular degeneration and control cataracts. Some studies
suggest that ginkgo may be of value in treating macular degeneration
because it increases blood flow to the nerve-rich fibers of the eyes.
The herb's antioxidant capabilities may also help to neutralize the
cell-damaging free radicals that are considered a leading cause of
this disorder. Ginkgo biloba's powerful antioxidant and circulation-promoting
properties may also be of help in treating the blurring and dimming
of vision caused by cataracts.
- Treat complications due to diabetes. Ginkgo has been shown
to be useful in treating diabetic neuropathy, the nerve damage resulting
from poor circulation to the extremities that is common in diabetes
sufferers. Animal studies have shown that ginkgo may also help prevent
diabetic retinopathy, an eye disease that can cause blindness.
- Counter impotence. Ginkgo biloba extract may enhance the
treatment of erectile dysfunction due to poor blood flow resulting
from atherosclerosis of the penis. Ultrasound examinations of 60 impotent
men who took ginkgo biloba showed improved penile blood circulation
after six weeks. After six months, 50% of the patients had regained
potency. Continuing studies are investigating ginkgo's potential in
treating this problem.
- Reduce the risk of heart attack or stroke. By reducing the
"stickiness" of the blood, as aspirin does, ginkgo may lower
the risk of blood clots and possibly reduce the risk of heart attacks
or stroke. Studies are also evaluating the herb's effectiveness in
speeding recovery from stroke.
- Ease asthmatic attacks. Long used in China for this ailment,
ginkgo seems to help relieve the airway spasms and wheezing associated
with this lung disease.
- Optimize brain power. While there are no studies showing
that ginkgo can prevent memory loss in healthy people, proponents
suggest it can help mental decline and optimize brain function. These
effects may be due to ginkgo's ability to increase blood flow to the
brain.
Ginkgo Nut
The
ginkgo nut is the hard-shelled kernel of the fruit of the maidenhair
tree, one of the earth's most ancient plants. In China, ginkgo nuts
are used in both sweet and savoury dishes. They are sometimes used as
an alternative to lotus seeds in 'eight treasure' dishes. They are also
a popular snack in Japan and Korea, threaded on pine needles, grilled
and salted. They keep well unshelled, but once removed from shells will
keep only a short while, even with refrigeration. Soak the kernels in
hot water to loosen the skins. Cooked, they turn a delicate shade of
green.
Medicinal uses: Leaves and seeds are used in Chinese herbal medicine
for lung problems. An extract of G. biloba in tablet or liquid form
is used to improve the memory. It is also valued as a tonic for the
urinary system.
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