GINKGO BILOBA-- FOR ALZHEIMER'S DISEASE AND CARDIOVASCULAR DISEASE
Botanical name-Ginkgo biloba Linn
Family- Ginkgoaceae
Common name- Maidenhair tree
Ginkgos are large trees, normally
reaching a height of 20–35 m (66–115 ft), with some specimens in
China being over 50 m (160 ft). The tree has an angular crown and long, somewhat erratic branches, and is usually deep
rooted and resistant to wind and snow damage. Young trees are often tall and
slender, and sparsely branched; the crown becomes broader as the tree ages.
During autumn, the leaves turn a bright yellow, then fall, sometimes within a
short space of time (one to 15 days). A combination of resistance to
disease, insect-resistant wood and the ability to form aerial roots and sprouts makes ginkgos long-lived, with some specimens
claimed to be more than 2,500 years old.
Leaves: The characteristic
greenish-yellow leaves are fan-shaped and composed of two or more distinct
lobes; the Latin species name biloba refers
to this fact. The common name of maidenhair tree pertains to the similarity of
the leaves to those of maidenhair ferns (Adiantum species). In autumn, the leaves of Ginkgo biloba turn a beautiful golden hue before
falling to the ground.
Seeds: It takes 20-35 years
for maidenhair trees to reach maturity and start bearing seeds. Male and female
trees are separate; male trees have pollen-producing catkins while female
trees, once fertilised, bear rounded, yellowish seeds with a fleshy outer coat
(resembling a plum in appearance). These fall to the ground in the autumn and
as the seed coat decays it exudes a rancid butter-like smell
Part used – Leaves
Chemical constituents-- The
constituents of primary interest in Ginkgo leaf are ginkgolides and flavonoids.
Ginkgolides (ginkgolides A, B, C, J, and M) are diterpenes. Flavonoids present
in Ginkgo leaf include flavones, biflavones, flavonols, tannins, and associated
glycosides. In general, flavonoids are principally found in the leaves,
although they are also present in many other parts of the plant. There are
about 20 flavonoid glycosides along with glucosides, quercetin and kaempferol
3-rhamnosides and 3-rutinosides, p-coumaric esters of
glucorhamnosides of quercetin, kaempferol and biflavones. The biflavones are amentoflavone,
bilobetol, 5-methoxybilobetol, ginkgetin, isoginkgetin, and sciadopitysin,
bilobalides. Ginkgo leaves also contain flavan-3-ols, proanthocyanins and
poly-isoprenoid - derived betulaprenols in unusually high amounts. Other
compounds of interest in the leaf include ginnon, ginnol, 2-hexenal, and
bilobalide.
Therapeutic uses--Ginkgo
biloba has been used medicinally for thousands of years. Today, it is one of
the top-selling herbs in the United States.
Ginkgo is used for the treatment of numerous
conditions, many of which are under scientific investigation. Available
evidence supports ginkgo for managing dementia, anxiety, schizophrenia, and
cerebral insufficiency (insufficient blood flow to brain).
Evidence for other uses is either lacking or mixed.
Further research is needed for all uses of ginkgo.
Although ginkgo is generally well tolerated, it should
be used cautiously in people with clotting disorders or taking blood thinners,
or prior to some surgical or dental procedures, due to reports of bleeding.
HOMOEOPATHIC
USES
First time the Homoeopathic proving was done in the year 1933 by
Dr. E.A.Maury with the M.T. on seven subjects ( 5 men, 2 women) then six
persons and Dr. KORSAKOFF on two men. An auto experimentation was undertaken by
Dr. E.G.IVOR of New Zealand in 1971. Homoeopathically proved main symptoms are
--- General lameness with chill. Unreasonable fear with rapid flow of words.
Suppressed anger. Intellectual weakness.
Heaviness of the frontal region of head.Vertigo.
Sensation of troubles vision with a veil before the eyes.Buzzing in ears.Vesiculous
eruptions, burning, prurigious. Great muscular weakness. Asthma
Here, it is interesting to know, that many Homoeopathic pharmaceuticals in
India and abroad have spearheaded research on Ginkgo biloba and Ginkgo biloba
Mother Tincture is being used globally for Cardio- Vascular disease,
neurological problems.
1. Improves cerebral
circulation and pheripheral vascular problems
2. Improves
in age related forgetfulness
3. Useful in
weakness of memory, difficulty in thinking, insomnia, heaviness in frontal
region, vertigo, buzzing sensation
4. Inhibits
Prolye endopeptidase
(PEP), plays an important role in learning and memory process, depression and
senile dementia
5. Useful in Alzheimer's patients
6. Inhibits platelet activation factor (PAF),
thereby reduces the chances of blood clotting leading to various inflammations
and allergic changes
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