Herbal Antioxidants and
Protection from Radiation
Introduction to antioxidants
An antioxidant is a molecule capable
of slowing or preventing the oxidation of other molecules. Oxidation reactions
can produce free radicals, which start chain reactions that damage cells. Antioxidants stop these chain reactions
by removing free radicals and inhibit other oxidation reactions by being
oxidized themselves. Although oxidation reactions are crucial for life, they
can also be damaging. Specific plants, herbs and spices contain a variety of
important antioxidants of which many are famous in Asian cooking where they
play an important role in dietary health.
Insufficient levels of antioxidants
or excessive oxidative stress may damage or kill human cells. Oxidative stress
is an important factor in many human diseases. We now have a greater
understanding of why certain plants are beneficial in supporting human health
due to the potent antioxidant compounds they contain that help replenish our
bodies own natural antioxidant defences.
Because they have one or more
unpaired electrons, free radicals are highly unstable. They scavenge your body
to grab or donate electrons, thereby damaging cells, proteins, and DNA (genetic
material). It is impossible for us to avoid damage by free radicals as these
arise from sources both inside and outside our bodies. Oxidants that develop
from processes within our bodies form as a result of normal aerobic
respiration, metabolism, and inflammation. Exogenous free radicals form from
environmental factors such as excessive sunlight, strenuous exercise, X-rays,
smoking and alcohol. Ever increasing environmental pollution generates
additional free radical damage and toxicity overwhelming our already
overburdened detoxification systems.
Antioxidant compound target
different cellular reactions and cells of different organs and these are now
believed to play a role in preventing the development of such chronic diseases
as cancer, heart disease, stroke, alzheimer's, rheumatoid arthritis, diabetes,
liver disease and cataracts.
Nuclear radiation and free
radical damage
The recent concerns about
radioactive isotopes being released into the environment as a result of the
Fukushima Nuclear Power Plant reactor leakage has the potential to emit some of
the most dangerous forms of free radical damage from ionizing radiation.
Radioactive elements undergo decay and emit high-energy particles energetic
enough to ionize atoms by knocking off their electrons. This ionizing radiation
can damage DNA molecules directly, by breaking the bonds between atoms, or it
can ionize water molecules and form free radicals (our cells are mostly water
and ionizing radiation breaks H20 down into harmful free radicals H+ and OH-),
which are highly reactive and also disrupt the bonds of surrounding molecules,
including DNA. This DNA damage is enough to kill cells or cause them to mutate
in ways that may eventually lead to cancer. The DNA damaging effects of
radiation is measured in units called sieverts, which take into account the
type and amount of radiation, and which parts of the body are exposed, allowing
us to compare different kinds of exposures in one scale. In a typical year, a
person might receive a total dose of two or three millisieverts from things
like ambient radioactivity, plane flights and medical procedures. 100
millisieverts a year is the limit above which cancer risk starts to increase,
according to the World Nuclear Association. The greatest danger is for people
living in an affected area and winds can carry radioactive isotopes many
hundreds of kilometers (as evidenced from the Chernobyl disaster in Europe),
which can accumulate in the body, water table and food chain further damaging
tissue over time and causing disease and cancer.
Effects of ionizing radiation
Free radical organ damage depends on
which free radical is involved, how high the concentration, the target of damage
and predisposing factors. Children are naturally more risk from radiation because their cells typically divide more rapidly than those of adults. Common sources of radiation are background radiation from space and naturally occurring radioactive elements underground. The most dangerous to human health are those coming from man made radiation sources. These include; medical imaging tests such as x-rays, radiation therapy for cancer, work exposure for those working with such equipment, nuclear fallout and of growing global concern, ionizing radiation released from nuclear power plant accidents. Ionizing radiation produces the most rapid free
radical damage to various organs and may produce immediate or delayed damage
as follows;
Brain: Nerve cells and brain blood vessels can die,
leading to seizures.
Bone Marrow: Radiation exposure can damage the blood forming cells of the bone marrow leading to anemia (low red blood cell count).
Eyes: Radiation exposure increases the risk of
cataracts.
Thyroid: The thyroid is very sensitive to the effects
of Radioactive iodine (I-131) (in fact, I-131′s affinity for the thyroid
is used therapeutically to specifically attract radiation to the thyroid
in order to treat thyroid cancer and overactive thyroid). When a healthy
thyroid is exposed to I-131, it can lead to decreased thyroid function
and, over time, thyroid cancer.
Lungs: When you breathe in invisible nuclear fallout
particles, it can lead to lung cancer.
Heart: High doses of radiation can damage the cells in
the blood vessels that feed the heart, reducing cardiac function.
Digestive tract: Sensitive cells in the intestinal
lining can be damaged, leading to loss of appetite, nausea, bloody
vomiting, and bloody diarrhea.
Reproductive organs: Rapidly dividing cells (eggs and
sperm) in the ovaries and testes can die, leading to sterility.
Skin: Rapidly dividing skin cells can be damaged,
leading to skin lesions and burn.
Lymphatic organs: Rapidly dividing lymphatic cells die
and damaged bone marrow may have trouble replenishing these
immune-boosting cells, increasing the risk of infection.
Other effects and symptoms of excessive free radical
damage from radiation exposure includes: tumor growth / cancer, hemorrhages
under the skin, bleeding from the nose, gums or mouth, hair loss, weakness and fatigue, fainting, dehydration
and inflammation of tissues (swelling, redness or tenderness). Large radiation doses destroys millions of cells and
tissues of the body and as such can lead to impairment of any organ
function and / or death from organ failure.
Antioxidant protection from free
radical damage
The therapeutic benefit of many medicinal plants is a direct
result of their antioxidant properties on specific organs and bodily tissues.
As such, herbals provide important protection from free radical damage and
ionizing radiation. To assist detoxification from high doses of free radicals
or radioactive isotopes then an understanding of plant antioxidants and their
individual effects is very helpful in selecting the formulations that provide
optimal antioxidant components to restore health.
The first step is always to remove oneself from the source
of excessive free radicals or area of ionizing radiation exposure and to avoid
consuming contaminated foodstuff or drinking contaminated water. Eat a diet
high in uncontaminated fresh fruits and vegetables. Studies in Japan have shown
a therapeutic effect from consuming a diet high in brown rice, miso soup,
vegetables, onions and garlic and abundant seaweed, while also consuming plenty
of antioxidant rich green tea. Any diet high in protective nutrients, enzymes
and antioxidants will provide higher cellular protection.
Many antioxidant herbs have been studied for their effects
as radioprotective
agents (able to protect humans from ionizing radiation). In nature, plants have
evolved an array of phytochemicals to protect them from the ionizing radiation
from the sun and to survive in harsh environments. Tropical herbs and spices in
particular have evolved as a response to the intense ultraviolet radiation
around the equatorial regions. These herbs have been at the forefront of
research into radioprotection as a result of their unique antioxidant effects.
They hold immense promise to save human lives in the wake of the rise in global
environmental pollution and the potential exposure to nuclear radiation, such
as from the recent reactor accident in Fukushima, Japan.
RAINFOREST HERBS ANTIOXIDANT FORMULATIONS
HEMPEDU BUMI PLUS contains a combination of
antioxidant-rich herbal extracts: Andrographis paniculata, Curcuma longa and Phyllanthus niruri / amarus.
Andrographis contains a group of active
ing redients known as andrographolides that have been shown to have powerful free-radical
scavenging properties together with some of the most well researched
anticancer, liver protective and immunostimulant properties known in herbal
medicine(40–82). Andrographis is now being widely
researched for its anti-cancer and anti tumor effects in cancers of the liver,
lymphatics, prostate, lungs, colon, leukemia and breast. As a systemic
antioxidant that also markedly improves white blood cell immunity and liver
detoxification, Andrographis is uniquely suited to protect human health in the
face of ionizing radiation.
Cucuma longa contains the active ingredient
known as Curcumin,
responsible for the yellow colour in curry and which is one of the most popular
antioxidant plant supplements worldwide. Together with its effects on improving
antioxidant status in various diseases it has also been studied for its
radioprotective effects on decreasing the damaging effects of radiation (83-91).
Phyllanthus niruri / amarus it well researched for its liver
protective and antiviral effects and is widely used for viral hepatitis
infection. It contains ellagitannins that have potent antioxidant and superoxide radical
scavenging ability and enhance glutathione. Recent research is also focusing on
the plants anticancer and radioprotective effects (131-147).
Body organs / systems protected: This product is designed to offer
optimal antioxidant protection for the whole body, with emphasis on the liver,
white blood cells, gastro-intestinal system and cardiovascular system. For more info please visit our LIVER and IMMUNITY pages or to purchase click here. Also available as a herbal tea blend.
SELASIH PLUS contains one of the most well
researched herbs for protecting from the harmful effects of ionizing radiation; Ocimum sanctum,
also known as Asian Holly Basil. Numerous studies have revealed that it
contains potent antioxidant flavonoids, orientin and vicenin that protect the white blood cells,
chromosomes and bone marrow from radiation poisoning. Protective antioxidant
effects were also seen in animal studies after high-dose 131 iodine exposure
with increased survival time, prevention of lipid peroxidation and enhanced
glutathione (22-35).
Body organs / systems protected: Whole body, antioxidant protection as well as; thyroid, bone marrow /
white blood cells, red blood cells. Coming soon in herbal powder sachets.
PEGAGA PLUS contains Centella asiatica (Gotu Kola) that contains potent triterpenoids;
asiaticoside, centellic acid and madecassic acid. Centella has been extremely well researched for the past 50 years for its effects on enhancing cellular healing, micro-circulation
and brain function. Recent studies have shown Centella asiatica provides
radioprotection to DNA and membranes against radiation exposure, as well as
prevents radiation-induced decline in antioxidant enzyme levels and the
prevention of radiation induced weight loss and taste aversion (6-12). This formulation also includes
Andrographis and Orthosiphon (see references).
Body organs / systems protected: Provides bone marrow antioxidant protection from radiation, as well as for skin, blood vessels, brain and
nervous system, lungs, and digestive system. To purchase click here.
MISAI KUCING PLUS contains a combination of potent
antioxidant herbs, namely; Orthosiphon stamineus / aristatus, Zingiber
officinale, Centella asiatica and Curcuma longa.
Also known as Java Tea, the
antioxidant properties of Orthosiphon and its polyphenol fractions have been well research in Malaysia in
reducing oxidative stress by inhibiting the formation of lipid peroxidation, as
well as their use as a cytoprotective against free radical induced cell death (92-103).
Zingiber officinale (Ginger) contains the active
ingredient gingerol, well-known for its anti-nausea and anti-inflammatory effects. Recent
research is focusing on its antioxidant mechanisms whereby it shows strong
potential as an anti-cancer and radioprotective agent to ameliorate symptoms of
radiation exposure, such as taste aversion, learning difficulties and digestive
disturbances and vomiting (113-116).
Curcuma and Centella (see references) further protect
from radiation induced gastrointestinal and bone marrow cellular deaths and
assist to reduce the symptoms of radiation sickness.
Body organs / systems protected: Radiation sickness, digestive
disturbances; nausea, vomiting, protect skeletal system and bone marrow. To purchase click here.
TONGKAT ALI PLUS contains Eurycoma longifolia,
Tinospora cordifolia, Centella asiatica and Glycerrhiza glabra.
Eurycoma longifolia (Tongkat Ali) has been well
researched for its effects on promoting testosterone and sperm count and is
used as a fertility agent for men.
Eurycoma contains eurycomanone and this has been shown to have anticancer properties via
enhancing p53 tumor suppressing protein and directly causing apoptosis of a
range of human cancer cells.
Tinospora cordifolia has been widely studied for its
radioprotective effects against radiation. It has been found to increase
survival time and protect blood and immune cells from damage. Administered
before irradiation significantly ameliorated radiation induced elevation in
lipid peroxidation and decline in glutathione concentration in testes. These
observations indicate the radioprotective potential of Tinospora cordifolia root
extract on testicular constituents against gamma irradiation in mice (13-21).
The radioprotective effect of the
root extract of Glycyrrhiza glabra on lipid peroxidation and white blood cell status has been
studied and the extract was found to protect microsomal membranes (as evident
from reduction in lipid peroxidation) DNA, as well as to protect white blood
cells (enhancing the recovery of leukocyte count and the blastogenic response).
Body organs / systems protected: Testes / male reproductive, white blood
cells, prevents weakness & fatigue. For more information visit our Mens Health page. To purchase click here.
SENDUDUK PLUS
Melastoma malabathricum (Senduduk) has been shown to have
marked anti-inflammatory and pain relieving effects and contains high amounts
of antioxidants, specifically flavanoids; quercetin, quercitrin and kaempferol. These flavanoids are also
responsible for improving energy and relieving fatigue (104-112).
Labisia pumila (Kacip Fatima) is one of the most
well known herbs used in Malaysia for indications related to female health and
as a tonic after childbirth. It contains phytoestrogenic compounds that have
been confirmed in animal models for polycystic ovary disease and
post-menopausal osteoporosis. It has been shown to have anti-stress potential
and increased response in swimming endurance. A recent study has shown an
antioxidant effect against UVB irradiation when applied externally.
Curcuma longa (Turmeric) contains various active
constituents, including essential oils and Curcumin with a wide range of
pharmacological activities. Curcuma longa has been used extensively in
Malaysian and Indonesian herbal medicine for female health and its antioxidant,
hepatoprotective and anti-inflammatory effects are widely responsible for its
beneficial effects in female health. Current research is focusing on its anti-cancer
compounds and for protection from radiation.
Zingiber officinale (Ginger) is familiar as a culinary
herb and as a remedy for nausea and indigestion. Its potent anti-inflammatory,
antispasmodic and analgesic properties make it a common in Asian herbal
medicine. Its active ingredient, gingerol is a potent antioxidant and has been
well studied for its protective effects against radiation and has been shown to
improve survival and reduce the digestive symptoms and taste aversion after
radiation exposure. Studies on breast and ovarian cancer have shown a
protective effect.
Body organs / systems protected: Ovaries, white blood cells,
prevents weakness & fatigue. For more information please visit our Womens Health page. To purchase click here.
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