Traditional Chinese Medicine may reduce the side-effects of chemotherapy

Traditional Chinese Medicine (TCM) may help in reducing the side-effects for breast cancer patients undergoing chemotherapy, according to a recent study conducted by the Cochran Collaboration. The Cochran Library is an independent evidence based research group that provides evidence to inform healthcare decision-making.

Although chemotherapy is still considered the best treatment for breast cancer, the side effects can be very unpleasant. Side-effects include nausea and vomiting, decrease in bone marrow density, mouth soreness, lower resistance to infections, hair loss, and weakness and fatigue. More than half of the women that undergo chemotherapy suffer from one or more of these side-effects.

The purpose of the review was to evaluate the safety and effectiveness of using traditional Chinese Medicinal Herbs to reduce the side effects of chemotherapy. The study followed 542 women with breast cancer undergoing chemotherapy, and concluded while there was no statistical evidence to suggest that Chinese Medicinal Herbs could be harmful, the use of Medicinal Herbs may offer some benefit to those breast cancer patients undergoing chemotherapy in terms of bone marrow improvement and quality of life. There are approximately 50 fundamental herbs used in Chinese medicine and combinations of these herbs make up herbal remedies. For this study, six common herbal remedies were tested.

Despite widespread use of alternative medicine, such as Traditional Chinese Medicine, historically, there have been very few clinical trials to measure the health outcomes from their use. The Cochran study is a welcomed step forward in this direction. The authors admit that more well designed trials are required and that the evidence in this study it too limited to provide confident conclusions.

Ephedra To Pump Your Adrenaline Up !

Ephedra refers to the plant Ephedra sinica. E. sinica, known in Chinese as ma huang (麻黃; pinyin: má huáng), has been used in traditional Chinese medicine for 5,000 years for the treatment of asthma and hay fever, as well as for the common cold. Several additional species belonging to the genus Ephedra have traditionally been used for a variety of medicinal purposes, and are a possible candidate for the Soma plant of Indo-Iranian religion. Native Americans and Mormon pioneers drank a tea brewed from an Ephedra, called Mormon Tea.

In recent years, the safety of ephedra-containing dietary supplements has been questioned by the United States Food and Drug Administration (FDA), the National Center for Complementary and Alternative Medicine, and the medical community as a result of a high rate of serious side effects and ephedra-related deaths. In response to accumulating evidence of adverse effects and deaths related to ephedra, the FDA banned the sale of ephedra-containing supplements on April 12, 2004. A suit by an ephedra manufacturer was upheld by a Federal District Court judge in Utah on April 14, 2005. The FDA appealed this ruling, and on August 17, 2006 the U.S. Court of Appeals for the Tenth Circuit upheld the FDA's ban of ephedra.As of June 2007, the sale of ephedra-containing dietary supplements remains illegal in the United States due to their health risks.

Effects and uses

Ephedra is both a stimulant and a thermogenic; its biological effects are due to its ephedrine and pseudoephedrine content. These compounds stimulate the brain, increase heart rate, constrict blood vessels (increasing blood pressure), and expand bronchial tubes (making breathing easier). Their thermogenic properties cause an increase in metabolism, evidenced by an increase in body heat.

In traditional Chinese herbology, E. sinica is included in many herbal formulas that treat cold and flu such as 麻黃湯 ma huang tang (ephedra decoction) or 麻杏石甘湯 ma xing shi gan tang (ephedra, apricot kernel, gypsum, and licorice decoction). Ephedra is used therapeutically as a diaphoretic to help expel exterior pathogens and regulate the proper functioning of the lungs.

Ephedra is widely used by athletes, despite a lack of evidence that it enhances athletic performance. Ephedra may also be used as a precursor in the illicit manufacture of methamphetamine.

Ephedra has also been used for weight loss, sometimes in combination with aspirin and caffeine. Some studies have shown that ephedra, when taken in a regulated and supervised environment, is effective for marginal short-term weight loss (0.9kg/month more than the placebo), although it is unclear whether such weight loss is maintained. However, several reports have documented the large number of adverse events attributable to unregulated ephedra supplements.

Side effects of ephedra may include severe skin reactions, irritability, nervousness, dizziness, trembling, headache, insomnia, profuse perspiration, dehydration, itchy scalp and skin, vomiting, hyperthermia, irregular heartbeat, seizures, heart attack, stroke, or death.

Use in sports

Ephedrine is listed as a banned substance by both the International Olympic Committee and the World Anti-Doping Agency. The U.S. National Football League banned players from using ephedra as a dietary supplement in 2001 after the death of Minnesota Vikings offensive tackle Korey Stringer; ephedra was found in Stringer's locker and was believed by some to have contributed to his death.The substance is also banned by the National Basketball Association. Nonetheless, ephedra remains widely used by athletes; a 2006 survey of collegiate hockey players found that nearly half had used ephedra in the belief it would enhance athletic performance.

Purity and dosage

There are no formal requirements for standardization or quality control of dietary supplements in the United States, and the dosage of effective ingredients in supplements may vary widely from brand to brand or batch to batch. Studies of ephedra supplements have found significant discrepancies between the labeled dose and the actual amount of ephedra in the product. Significant variation in ephedrine alkaloid levels, by as much as 10-fold, was seen even from lot to lot within the same brand.

Safety and regulatory actions in the United States

Escalating concerns regarding the safety of ephedra supplements led the FDA to ban the sale of ephedra-containing supplements in the United States in 2004. This ban was challenged by supplement manufacturers and initially overturned, but ultimately upheld.

info : wikipedia

Herbal Plant : Willows

Willows Plant use as an Antipyretic

Willows (Salix) are a genus of around 400 species of deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions of the Northern Hemisphere. Some of the shrub and smaller tree species may also be known by the common names osier and sallow; the latter name is derived from the same root as the Latin salix. Some willows, particularly arctic and alpine species, are very small; the Dwarf Willow (Salix herbacea) rarely exceeds 6 cm in height, though spreading widely across the ground.

Willows are very cross-fertile and numerous hybrids occur, both naturally occurring and in cultivation. A well known example is the Weeping Willow (Salix × sepulcralis), very widely planted as an ornamental tree, which is derived from hybridisation between the Chinese Peking Willow and the European White Willow.

Medical Use

The leaves and bark of the willow tree have been mentioned in ancient texts from Assyria, Sumer and Egypt as a remedy for aches and fever, and the Greek physician Hippocrates wrote about its medicinal properties in the 5th century BC. Native Americans across the American continent relied on it as a staple of their medical treatments.

Willow is used to treat headache and as an antipyretic due to the content of salicylic acid

In 1763 its medicinal properties were observed by the Reverend Edward Stone in England. He notified the Royal Society who published his findings. The active extract of the bark, called salicin, was isolated to its crystalline form in 1828 by Henri Leroux, a French pharmacist, and Raffaele Piria, an Italian chemist, who then succeeded in separating out the acid in its pure state. Salicin is acidic when in a saturated solution in water (pH = 2.4), and is called salicylic acid for that reason.

In 1897 Felix Hoffmann created a synthetically altered version of salicin (in his case derived from the Spiraea plant), which caused less digestive upset than pure salicylic acid. The new drug, formally Acetylsalicylic acid, was named aspirin by Hoffmann's employer Bayer AG. This gave rise to the hugely important class of drugs known as non-steroidal anti-inflammatory drugs (NSAIDs).

Other uses

Uses as a plant

Agroforestry, Biofiltration, Constructed wetlands, Ecological wastewater treatment systems, Hedges, Land reclamation, Landscaping, Phytoremediation, Streambank stabilisation (bioengineering), Slope stabilisation, Soil erosion control, Shelterbelt & windbreak, Soil building, Soil reclamation, Tree bog compost toilet, Wildlife habitat

Uses as energy source

Charcoal, Energy forestry such as the Willow Biomass Project

Uses of wood

Basket weaving, Box, Brooms, Cricket bats, Cradle boards, Chairs & furniture, Dolls, Fish traps, Flutes, Poles, Sweat lodges, toys, turnery, tool handles, Veneer, Wands, Wattle fences, Wattle and daub, whistles

Uses of wood-derived products

Fibre plants, Paper, Rope and string, Tannin

• As part of the four species used on the Jewish holiday of Sukkot.
• Living Willow Sculpture

Herbal Plants : California Poppy

California Poppy to treat Toothache

The California poppy (Eschscholzia californica) is native to grassy and open areas from sea level to 2,000m (6,500 feet) altitude in the western United States throughout California, extending to Oregon, southern Washington, Nevada, Arizona, New Mexico, and in Mexico in Sonora and northwest Baja California.

It can grow 5–60 cm tall, with alternately branching glaucous blue-green foliage. The leaves are ternately divided into round, lobed segments. The flowers are solitary on long stems, silky-textured, with four petals, each petal 2-6 cm long and broad; their color ranges from yellow to orange, and flowering is from February to September. The fruit is a slender dehiscent capsule 3-9 cm long, which splits in two to release the numerous small black or dark brown seeds. It is perennial in mild parts of its native range, and annual in colder climates; growth is best in full sun and sandy, well-drained, poor soil.

It grows well in disturbed areas and often recolonizes after fires. In addition to being planted for horticulture, revegetation, and highway beautification, it often colonizes along roadsides and other disturbed areas. It is drought-tolerant, self-seeding, and easy to grow in gardens.

History & Uses

Eschscholzia californica was the first named member of the genus Eschscholzia, which was named by the German botanist Adelbert von Chamisso after another botanist, Johann Friedrich von Eschscholtz, his friend and colleague on Otto von Kotzebue’s scientific expedition to California and the greater Pacific in the early 19th century.

The California poppy is the California state flower. It was selected as the state flower by the California State Floral Society in December 1890, winning out over the Mariposa lily (genus Calochortus) and the Matilija poppy (Romneya coulteri) by a landslide, but the state legislature did not make the selection official until 1903. Its golden blooms were deemed a fitting symbol for the Golden State. April 6 of each year is designated "California Poppy Day."

Horticulturalists have produced numerous cultivars with various other colors and blossom and stem forms. These typically do not breed true on reseeding.

A common myth associated with the plant is that cutting or otherwise damaging the California poppy is illegal because it is a state flower. There is no such law. There is a state law that makes it a misdemeanor to cut or remove any flower, tree, shrub or other plant growing on state or county highways, with an exception for authorized government employees and contractors (Cal. Penal Code Section 384a).

California poppy leaves were used medicinally by Native Americans, and the pollen was used cosmetically. The seeds are used in cooking.

Extract from the California poppy acts as a mild sedative when smoked. The effect is far milder than that of opium, which contains a different class of alkaloids.

The Antelope Valley California Poppy Reserve is located in northern Los Angeles County, California. At the peak of the blooming season, orange petals seem to cover all 1,745 acres (7 km²) of the reserve.

info : wikipedia

Citrus medica = lime

CITRON or LIME

useful in heart disorders

The Citron is a fragrant fruit with the botanical name Citrus medica L. which apply to both, the Swingle and Tanaka systems. It is a prominent member in the genus Citrus belonging to the Rutaceae or Rue family, sub-family Aurantoideae. Its different names Citrus Media, Median Apple etc. were influenced by the Theophrastus who considered it being native to Media, Persia or Assyria. However, those names are now rarely in use.

Citron is useful in heart disorders, abdominal colic, Gulm, vomiting, nausea, indigestion, heamorrhoids

The citron is not the ordinary citrus fruit like the Lemon or Orange. While the most popular citrus species are peeled off in order to consume the inner pulpy and juicy segments – the citron contains extreme dry pulp which has little value compared to the orange. Moreover, its main content is the thick white rind which is extremely adherent to the segments, and cannot peel off at all.

Thus, the Citron was from ancient through medieval times mainly used only for the fragrance of its outer peel or for derived medicine against seasickness, pulmonary troubles, intestinal ailments and other disorders. Citron juice with wine was considered an effective antidote to poison. The essential oil of the peel was regarded as an antibiotic.

The most important part of the citron is the peel which is a fairly important article in international trade. The fruits are halved, depulped, immersed in seawater or ordinary salt water to ferment for about 40 days, the brine being changed every 2 weeks; rinsed, put in denser brine in wooden barrels for storage and for export. After partial de-salting and boiling to soften the peel, it is candied in a strong sugar solution. The candied peel is sun-dried or put up in jars for future use. Candying is done mainly in England, France and the United States. The candied peel is widely employed in the food industry, especially as an ingredient in fruit cake, plum pudding, buns, sweet rolls and candy.

Today there is an uprising market for the citron is the United States for the soluble fiber which is found in its thick rind, also called albedo. The citron is also used by Jews for a religious ritual during the Feast of Tabernacles, by whom it is called Etrog.

The citron has many similar names in diverse languages, e.g. cederat, cedro, etc. Most confusing is the French language, in which the false friend "citron" refers to a lemon in English (similarly, "limon" is the French word for lime).

The citron has been cultivated since ancient times, predating cultivation of other citrus species. Despite its minor importance today being hardly consumed as is, it seems that in different times it played a big role in life. We could see that from the way how it was described by numerous writings and poets across centuries. It is suggested that when the other citrus species arrived, they pushed the citron off the road, since most of its benefits could nearly by found in the lemon, which is much easier to cultivate.

The following is from the writings of Theophrastus

"In the east and south there are special plants... i.e. in Media and Persia there are many types of fruit, between them there is a fruit called Median or Persian Apple. The tree has a leaf similar to and almost identical with that of the andrachn (Arbutus andrachne L.), but has thorns like those of the apios (the wild pear, Pyrus amygdaliformis Vill.) or the oxyacanthos (the fire thorn, Cotoneaster pyracantha Spach.), except that they are white, smooth, sharp and strong.

"The fruit is not eaten, but is very fragrant, as is also the leaf of the tree; and the fruit is put among clothes, it keeps them from being moth-eaten. It is also useful when one has drunk deadly poison, for when it is administered in wine; it upsets the stomach and brings up the poison. It is also useful to improve the breath, for if one boils the inner part of the fruit in a dish or squeezes it into the mouth in some other medium, it makes the breath more pleasant.

"The seed is removed from the fruit and sown in the spring in carefully tilled beds, and it is watered every fourth or fifth day. As soon the plant is strong it is transplanted, also in the spring, to a soft, well watered site, where the soil is not very fine, for it prefers such places.

"And it bears its fruit at all seasons, for when some have gathered, the flower of the others is on the tree and is ripening others. Of the flowers I have said those which have a sort of distaff [meaning the pistil] projecting from the middle are fertile, while those which do not have this are sterile. It is also sown, like date palms, in pots punctured with holes.

"This tree, as has been remarked, grows in Media and Persia."

Later with about 400 years it was also described by Pliny the Elder, who was calling it nata Assyria malus.

"The Assyrian fruit, which some call Median, is an antidote for poisons. Its leaf is like that of the andrachn (Arbutus andrachne L.), but with thorns running between. The fruit is notable for the fact that it is not eaten and has a strong odor, as also do the leaves, which impregnates clothes stored with them and keeps away harmful insects.

"The tree itself bears fruit continuously; some dropping off, others ripening, and still others budding.

"People have tried to introduce the tree into their land in clay vessels because of its medicinal efficacy, providing breathing for the roots by making holes in the vessels; …but except among Media and in Persia, it has refused to grow.

"This is the fruit whose pips we have related Parthian nobles boiled in foods in order to eliminate bad breath. No other tree is so highly praised in Media."

info : wikipedia

Acorus calamus - Sweet Flag

Sweet Flag For Medicine

Calamus or Common Sweet Flag (Acorus calamus) is a plant from the Acoraceae family, Acorus genues. It is a tall perennial wetland monocot with scented leaves and rhizomes which have been used medicinally, for its odor, and as a psychotropic drug. It is known by a variety of names, including cinnamon sedge, flagroot, gladdon, myrtle flag, myrtle grass, myrtle sedge, sweet cane, sweet myrtle, sweet root, sweet rush, and sweet sedge. Probably indigenous to India, Acorus calamus is now found across Europe, in southern Russia, northern Asia Minor, southern Siberia, China, Japan, Burma, Sri Lanka, and northern USA.

The morphological distinction between the Acorus species is made by the number of prominent leaf veins. Acorus calamus has a single prominent midvein and then on both sides slightly raised secondary veins (with a diameter less than half the midvein) and many, fine tertiary veins. This makes it clearly distinct from Acorus americanus.

The leaves are between 0.7 and 1.7 cm wide, with average of 1 cm. The sympodial leaf of Acorus calamus is somewhat shorter than the vegetative leaves. The margin is curly-edged or undulate. The spadix, at the time of expansion, can reach a length between 4.9 and 8.9 cm (longer than A. americanus). The flowers are longer too, between 3 and 4 mm. Acorus calamus is infertile and shows an abortive ovary with a shriveled appearance.

Calamus has been an item of trade in many cultures for thousands of years. Calamus has been used medicinally for a wide variety of ailments.

In antiquity in the Orient and Egypt, the rhizome was thought to be a powerful aphrodisiac. In Europe Acorus calamus was often added to wine, and the root is also one of the possible ingredients of absinthe. Among the northern Native Americans, it is used both medicinally and as a stimulant; in addition, the root is thought to have been used as an entheogen among the northern Native Americans. In high doses, it is hallucinogenic.

Characteristic: Bitter tonic, ague, habitual constipation, atonic dyspepsia, flatulence, paralytic nervous affections, colic, epilepsy, dropsy, glandular diseases, rheumatoc swellings, useful for children's ailments teething etc.

The calamus has long been a symbol of male love. The name is associated with a Greek myth: Kalamos, a son of the river-god Maeander, who loved Karpos, the son of Zephyrus and Chloris. When Karpos drowned, Kalamos was transformed into a reed, whose rustling in the wind was interpreted as a sigh of lamentation.

The plant was a favorite of Henry David Thoreau (who called it sweet flag), and also of Walt Whitman, who added a section called The Calamus Poems, celebrating the love of men, to the third edition of Leaves of Grass (1860). In the poems the calamus is used as a symbol of love, lust, and affection. It has been suggested that the symbology derives from the visual resemblance of the spadix to the erect human penis.

The name Sweet Flag refers to its sweet scent (it has been used as a strewing herb) and the wavy edges of the leaves which are supposed to resemble a fluttering flag.

In Japan, the plant is a symbol of the samurai's bravery because of its sharp sword-like leaves. Even now many families with young boys enjoy "Sweet Flag Bath (shōbu yu)" in the Boy's Festival (Tango no Sekku) on May 5.

info : wikipedia

Aloe Vera

Aloe Vera For Medical Treatment

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Liliopsida
Subclassis: Liliidae
Ordo: Asparagales
Familia: Asphodelaceae
Genus: Aloe Species: Aloe vera

Useful in ophthalmic disorders, mild laxative, tonic, increases semen quality, cure vata dosha, poisonous effects, hepatospleenomegaly, spleen and liver disorders, cystic formation, hydrocele, kaphha fever, glands, anomalies of blood, anomalies of skin.

Ginger for medical medicine

Ginger To Warm Your Body

Ginger is the common name for the monocotyledonous perennial plant Zingiber officinale. The term is also used to describe the edible part of the plant which is commonly used as a spice in cooking throughout the world. Often erroneously referred to as "ginger root", the edible section is actually the horizontal subterranean stem or rhizome of the plant. The ginger plant has a long history of cultivation known to originate in China and then spread to India, Southeast Asia, West Africa, and the Caribbean.

Ginger contains up to 3% of an essential oil that causes the fragrance of the spice. The main constituents are sesquiterpenoids with (-)-zingiberene as the main component. Lesser amounts of other sesquiterpenoids (β-sesquiphellandrene, bisabolene and farnesene) and a small monoterpenoid fraction (β-phelladrene, cineol, and citral) have also been identified.

The pungent taste of ginger is due to nonvolatile phenylpropanoid-derived compounds, particularly gingerols and shogaols. The latter are formed from the former when ginger is dried or cooked. Zingerone is also produced from gingerols during this process, and it is less pungent and has a spicy-sweet aroma.

Ginger has a sialagogue action, stimulating the production of saliva.

Ginger Tea

Medical uses

The medical form of ginger historically was called "Jamaica ginger"; it was classified as a stimulant and carminative, and used frequently for dyspepsia and colic. It was also frequently employed to disguise the taste of medicines. Ginger is on the FDA's 'generally recognized as safe' list, though it does interact with some medications, including warfarin. Ginger is contraindicated in people suffering from gallstones as the herb promotes the release of bile from the gallbladder. Ginger may also decrease joint pain from arthritis, though studies on this have been inconsistent, and may have blood thinning and cholesterol lowering properties that may make it useful for treating heart disease.

The characteristic odor and flavor of ginger root is caused by a mixture of zingerone, shoagoles and gingerols, volatile oils that compose about one to three percent of the weight of fresh ginger. In laboratory animals, the gingerols increase the motility of the gastrointestinal tract and have analgesic, sedative, antipyretic and antibacterial properties.

Ginger has been found effective by multiple studies for treating nausea caused by seasickness, morning sickness and chemotherapy, though ginger was not found superior over a placebo for post-operative nausea. However, consuming too much ginger can create a feeling of nausea in an individual.

Modern research on nausea and motion sickness used approximately 1 gram of ginger powder daily. Though there are claims for efficacy in all causes of nausea, the Physicians Desk Reference recommends against taking ginger rhizomes for morning sickness commonly associated with pregnancy due to possible mutagenic effects, though Chinese women have traditionally used ginger rhizomes during pregnancy to combat morning sickness and the Natural Medicines Comprehensive Database states that it is likely safe for use in pregnancy when consumed in food-amounts.

There are a variety of uses suggested for ginger. A tea brewed from the is a folk remedy for colds. Ginger ale and ginger beer have been recommended as "stomach settlers" for generations in countries where the beverages are made and ginger water was commonly used to avoid heat cramps in the US. Ginger has also been historically used to treat inflammation, which some scientific studies support while others show ginger to be no better than a placebo or ibuprofen. Research on rats suggests that ginger may be useful for treating diabetes.

Herbal Medicine Is Better

Herbalism is a traditional medicinal or folk medicine practice based on the use of plants and plant extracts. Herbalism is also known as botanical medicine, medicinal botany, medical herbalism, herbal medicine, herbology, and phytotherapy. Sometimes the scope of herbal medicine is extended to include fungi and bee products, as well as minerals, shells and certain animal parts.

Many plants synthesize substances that are useful to the maintenance of health in humans and other animals. These include aromatic substances, most of which are phenols or their oxygen-substituted derivatives such as tannins. Many are secondary metabolites, of which at least 12,000 have been isolated — a number estimated to be less than 10% of the total. In many cases, these substances (particularly the alkaloids) serve as plant defense mechanisms against predation by microorganisms, insects, and herbivores. Many of the herbs and spices used by humans to season food yield useful medicinal compounds.

With only a few exceptions, most herbal treatments have not been tested for safety and efficacy utilizing scientific studies or clinical trials.The scientific and medical communities state that herbal treatments may be risk the well-being or life of the patient when used in lieu of standard medical treatments.

People on all continents have used hundreds to thousands of indigenous plants for treatment of ailments since prehistoric times. There is evidence from the Shanidar Cave in Iraq that suggests Neanderthals living 60,000 years ago used medicinal plants. A body that was unearthed there had been buried with eight species of plants which are still widely used in ethnomedicine around the world.

The first generally accepted use of plants as healing agents was depicted in the cave paintings discovered in the Lascaux caves in France, which have been radiocarbon-dated to between 13,000-25,000 BCE. Medicinal herbs were found in the personal effects of an "Ice man," whose body was frozen in the Swiss Alps for more than 5,300 years, which appear to have been used to treat the parasites found in his intestines.

Anthropologists theorize that animals evolved a tendency to seek out bitter plant parts in response to illness. This behavior arose because bitterness is an indicator of secondary metabolites. The risk benefit ratio favored animals and protohumans that were inclined to experiment in times of sickness. Over time, and with insight, instinct, and trial-and-error, a base of knowledge would have been acquired within early tribal communities. As this knowledge base expanded over the generations, the specialized role of the herbalist emerged. The process would likely have occurred in varying manners within a wide diversity of cultures.

Indigenous healers often claim to have learned by observing that sick animals change their food preferences to nibble at bitter herbs they would normally reject. Field biologists have provided corroborating evidence based on observation of diverse species, such as chimpanzees, chickens, sheep and butterflies. Lowland gorillas take 90% of their diet from the fruits of Aframomum melegueta, a relative of the ginger plant, that is a potent antimicrobial and apparently keeps shigellosis and similar infections at bay.

Basil from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains

Researchers from Ohio Wesleyan University found that some birds select nesting material rich in antimicrobial agents which protect their young from harmful bacteria.

Sick animals tend to forage plants rich in secondary metabolites, such as tannins and alkaloids^{[13][citation needed]}. Since these phytochemicals often have antiviral, antibacterial, antifungal and antihelminthic properties, a plausible case can be made for self-medication by animals in the wild.

Some animals have digestive systems especially adapted to cope with certain plant toxins. For example, the koala can live on the leaves and shoots of the eucalyptus, a plant that is dangerous to most animals. A plant that is harmless to a particular animal may not be safe for humans to ingest. A reasonable conjecture is that these discoveries were traditionally collected by the medicine people of indigenous tribes, who then passed on safety information and cautions.

The use of herbs to treat disease is almost universal among non-industrialized societies^. A number of traditions came to dominate the practice of herbal medicine at the end of the twentieth century:

• The herbal medicine system, based on Greek and Roman sources
• The Ayurvedic medicine system from India
• Chinese herbal medicine (Chinese herbology)
• Unani-Tibb medicine
• Shamanic Herbalism

Many of the pharmaceuticals currently available to physicians have a long history of use as herbal remedies, including opium, aspirin, digitalis, and quinine. The World Health Organization (WHO) estimates that 80 percent of the world's population presently uses herbal medicine for some aspect of primary health care. Herbal medicine is a major component in all traditional medicine systems, and a common element in Ayurvedic, homeopathic, naturopathic, traditional Chinese medicine, and Native American medicine.

According to the WHO, 74% of 119 modern plant-derived pharmaceutical medicines are used in ways that are similar to their traditional uses. Major pharmaceutical companies are currently conducting extensive research on plant materials gathered from the rainforests and other places for possible new pharmaceuticals.

The use of, and search for, drugs and dietary supplements derived from plants have accelerated in recent years. Pharmacologists, microbiologists, botanists, and natural-products chemists are combing the Earth for phytochemicals and leads that could be developed for treatment of various diseases. In fact, approximately 25% of modern drugs used in the United States have been derived from plants.

• Three quarters of plants that provide active ingredients for prescription drugs came to the attention of researchers because of their use in traditional medicine.

• Among the 120 active compounds currently isolated from the higher plants and widely used in modern medicine today, 75 percent show a positive correlation between their modern therapeutic use and the traditional use of the plants from which they are derived.

• More than two thirds of the world's plant species - at least 35,000 of which are estimated to have medicinal value - come from the developing countries.

At least 7,000 medical compounds in the modern pharmacopoeia are derived from plants.

info : wikipedia