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16-September-2008 20:42:47 - Herbalism Biologically based alternative and complementary therapy - Chinese food therapy Herbalism Macrobiotic lifestyle Natural health Orthomolecular medicine NCCAM classifications Alternative Medical Systems Mind-Body Intervention Biologically Based Therapy Manipulative Methods Energy Therapy See also Complementary and alternative medicine Alternative medicine Complementary medicine Glossary of alternative medicine 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, 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.12 Contents 1 Anthropology of herbalism 2 Herbs in history 3 Role of herbal medicine in modern human society 4 Biological background 5 Herbal philosophy 6 Popularity 7 Types of herbal medicine systems 8 Routes of administration 9 Examples of plants used as medicine 10 Risks 11 Effectiveness 12 Clinical studies 12.1 Name confusion 13 Standards and quality control 14 Danger of extinction 15 Further reading 16 See also 17 References 18 External links 18.1 Associations 18.2 Herbalist 18.3 Criticism Anthropology of herbalism Mint from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains Mint from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains People on all continents have used hundreds to thousands of indigenous plants for treatment of ailments since prehistoric times.3 Anthropologists theorize that animals evolved a tendency to seek out bitter plant parts in response to illness.4 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.5 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. Basil from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains Basil from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains 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.6 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.7 Researchers from Ohio Wesleyan University found that some birds select nesting material rich in antimicrobial agents which protect their young from harmful bacteria.8 Sick animals tend to forage plants rich in secondary metabolites, such as tannins and alkaloids.9 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.7 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.10A plant that is harmless to a particular animal may not be safe for humans to ingest.11 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 and spices in cuisine developed in part as a response to the threat of food-born pathogens. Studies show that in tropical climes where pathogens are the most abundant recipes are the most highly spiced. Further, the spices with the most potent antimicrobial activity tend to be selected.12In all cultures vegetables are spiced less than meat, presumably because they are more resistant to spoilage.13 Herbs in history Borage from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains Borage from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains In the written record, the study of herbs dates back over 5,000 years to the Sumerians, who described well-established medicinal uses for such plants as laurel, caraway, and thyme. The Egyptians of 1000 B.C. are known to have used garlic, opium, castor oil, coriander, mint, indigo, and other herbs for medicine and the Old Testament also mentions herb use and cultivation, including mandrake, vetch, caraway, wheat, barley, and rye. The first Chinese herb book or herbal, dating from about 2700 B.C., lists 365 medicinal plants and their uses - including ma-Huang, the shrub that introduced the drug ephedrine to modern medicine. The ancient Greeks and Romans made medicinal use of plants. Greek and Roman medicinal practices, as preserved in the writings of Hippocrates and - especially - Galen, provided the patterns for later western medicine. Hippocrates advocated the use of a few simple herbal drugs - along with fresh air, rest, and proper diet. Galen, on the other had, recommended large doses of drug mixtures - including plant, animal, and mineral ingredients. The Greek physician compiled the first European treatise on the properties and uses of medicinal plants, De Materia Medica. In the first century AD, Dioscorides wrote a compendium of more that 500 plants that remained an authoritative reference into the 17th century. Similarly important for herbalists and botanists of later centuries was the Greek book that founded the science of botany, Theophrastus' Historia Plantarum, written in the fourth century B.C. Thyme from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains Thyme from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains The uses of plants for medicine and other purposes changed little during the Middle Ages. Many Greek and Roman writings on medicine, as on other subjects, were preserved by diligent hand copying of manuscripts in monasteries. The monasteries thus tended to become local centers of medical knowledge, and their herb gardens provided the raw materials for simple treatment of common disorders. At the same time, folk medicine in the home and village continues uninterrupted, supporting numerous wandering and settled herbalists. Among these were the wise-women, who prescribed herbal remedies often along with spells and enchantments. It was not until the later Middle Ages that women who were knowledgeable in herb lore became the targets of the witch hysteria. One of the most famous women in the herbal tradition was Hildegard of Bingen. A twelfth century Benedictine nun, she wrote a medical text called Causes and Cures. Medical schools began to return in the eleventh century, teaching Galen's system. At the time, the Arabic world was more advanced in science than Europe. As a trading culture, the Arabs had access to plant material from distant places such as China and India. Herbals, medical texts and translations of the classics of antiquity filtered in from east to west.14 Alongside the university system, folk medicine continued to thrive. The continuing importance of herbs for the centuries following the Middle Ages is indicated by the hundreds of herbals published after the invention of printing in the fifteenth century. Theophrastus' Historia Plantarum was one of the first books to be printed, and Dioscorides' De Materia Medica was not far behind. Marjoram from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains Marjoram from Project Gutenberg EBook of Culinary Herbs: Their Cultivation Harvesting Curing and Uses, by M. G. Kains The fifteenth, sixteenth, and seventeenth centuries were the great age of herbals, many of them available for the first time in English and other languages rather than Latin or Greek. The first herbal to be published in English was the anonymous Grete Herball of 1526. The two best-known herbals in English were The Herball or General History of Plants 1597 by John Gerard and The English Physician Enlarged 1653 by Nicholas Culpeper. Gerard's text was basically a pirated translation of a book by the Belgian herbalist Dodoens and his illustrations came from a German botanical work. The original ion contained many errors due to faulty matching of the two parts. Culpeper's blend of traditional medicine with astrology, magic, and folklore was ridiculed by the physicians of his day yet his book - like Gerard's and other herbals - enjoyed phenomenal popularity. The Age of Exploration and the Columbian Exchange introduced new medicinal plants to Europe. The Badianus Manuscript was an illustrated Aztec herbal translated into Latin in the 16th century. The second millennium, however, also saw the beginning of a slow erosion of the pre-eminent position held by plants as sources of therapeutic effects. This began with the introduction of the physician, the introduction of active chemical drugs like arsenic, copper sulfate, iron, mercury, and sulfur, followed by the rapid development of chemistry and the other physical sciences, led increasingly to the dominance of chemotherapy - chemical medicine - as the orthodox system of the twentieth century. Role of herbal medicine in modern human society Botánicals, such as this one in Jamaica Plain, Massachusetts, cater to the Latino community and sell herbal cures and folk medicine alongside statues of saints, candles decorated with prayers, lucky bamboo, and other items. Botánicals, such as this one in Jamaica Plain, Massachusetts, cater to the Latino community and sell herbal cures and folk medicine alongside statues of saints, candles decorated with prayers, lucky bamboo, and other items. The use of herbs to treat disease is almost universal among non-industrialized societies.15 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 Siddha and Ayurvedic medicine systems 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.16 Pharmaceuticals are prohibitively expensive for most of the world's population, half of which lives on less than $2 U.S. per day.17181920 In comparison, herbal medicines can be grown from seed or gathered from nature for little or no cost. 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. 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, according to the World Health Organisation, approximately 25% of modern drugs used in the United States have been derived from plants.21 Three quarters of plants that provide active ingredients for prescription drugs came to the attention of researchers because of their use in traditional medicine.22verification needed Among the 120 active compounds currently isolated from the higher plants and widely used in modern medicine today, 80 percent show a positive correlation between their modern therapeutic use and the traditional use of the plants from which they are derived.23 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.verification needed At least 7,000 medical compounds in the modern pharmacopoeia are derived from plants24 Biological background The anthocyanins in sweet violets produce deep red, violet and blue shades. The anthocyanins in sweet violets produce deep red, violet and blue shades. The carotenoids in primrose produce bright red, yellow and orange shades. The carotenoids in primrose produce bright red, yellow and orange shades. All plants produce chemical compounds as part of their normal metabolic activities. These include primary metabolites, such as sugars and fats, found in all plants, and secondary metabolites found in a smaller range of plants, some useful ones found only in a particular genus or species. Pigments harvest light, protect the organism from radiation and display colors to attract pollinators. Many common weeds have medicinal properties.2526 The functions of secondary metabolites are varied. For example, some secondary metabolites are toxins used to deter predation, and others are pheromones used to attract insects for pollination. Phytoalexins protect against bacterial and fungal attacks. Allelochemicals inhibit rival plants that are competing for soil and light. Plants upregulate and downregulate their biochemical paths in response to the local mix of herbivores, pollinators and microorganisms.27 The chemical profile of a single plant may vary over time as it reacts to changing conditions. It is the secondary metabolites and pigments that can have therapeutic actions in humans and which can be refined to produce drugs. Plants synthesize a bewildering variety of phytochemicals but most are derivatives of a few biochemical motifs. Alkaloids contain a ring with nitrogen. Many alkaloids have dramatic effects on the central nervous system. Caffeine is an alkaloid that provides a mild lift but the alkaloids in datura cause severe intoxication and even death. Phenolics contain phenol rings. The anthocyanins that give grapes their purple color, the isoflavones, the phytoestrogens from soy and the tannins that give tea its astringency are phenolics. Turpenoids are built up from terpene building blocks. Each terpene consists of two paired isoprenes. The names monoterpenes, sesquiterpenes, diterpenes and triterpenes are based on the number of isoprene units. The fragrance of rose and lavender is due to monoterpenes. The carotenoids produce the reds, yellows and oranges of pumpkin, corn and tomatoes. Glycosides consist of a glucose moiety attached to an aglycone. The aglycone is a molecule that is bioactive in its free form but inert until the glycoside bond is broken by water or enzymes. This mechanism allows the plant to defer the availability of the molecule to an appropriate time, similar to a safety lock on a gun. An example is the cyanoglycosides in cherry pits that release toxins only when bitten by a herbivore. The word drug itself comes from the Swedish word druug, which means 'dried plant'. Some examples are inulin from the roots of dahlias, quinine from the cinchona, morphine and codeine from the poppy, and digoxin from the foxglove. The active ingredient in willow bark, once prescribed by Hippocrates, is salicin, or salicylic acid. The discovery of salicylic acid, also known as acetylsalicylic acid, would eventually lead to the development of aspirin when it was isolated from a plant known as meadowsweet. The word aspirin comes from an abbreviation of meadowsweet's Latin genus Spiraea, with an additional A at the beginning to acknowledge acetylation, and in was added at the end for easier pronunciation.28 Aspirin was originally a brand name, and is still a protected trademark in some countries. This medication was patented by Bayer AG. Herbal philosophy Rosemary Rosemary Since herbalism is such a diverse field few generalizations apply universally. Nevertheless a rough consensus can be inferred. Most herbalists concede that pharmaceuticals are more effective in emergency situations where time is of the essence. An example would be where a patient had elevated blood pressure that posed imminent danger. However they claim that over the long term herbs can help the patient resist disease and in addition provide nutritional and immunological support that pharmaceuticals lack. They view their goal as prevention as well as cure. Herbalists tend to use extracts from parts of plants, such as the roots or leaves but not isolate particular phytochemicals.29 Pharmaceutical medicine prefers single ingredients on the grounds that dosage can be more easily quantified. Herbalists reject the notion of a single active ingredient. They argue that the different phytochemicals present in many herbs will interact to enhance the therapeutic effects of the herb and dilute toxicity.30Furthermore, they argue that a single ingredient may contribute to multiple effects. Herbalists deny that herbal synergism can be duplicated with synthetic chemicals. They argue that phytochemical interactions and trace components may alter the drug response in ways that cannot currently be replicated with a combination of a few putative active ingredients.3132 Pharmaceutical researchers recognize the concept of drug synergism but note that clinical trials may be used to investigate the efficacy of a particular herbal preparation, provided the formulation of that herb is consistent.33 Thai chili peppers contain capsaicin Thai chili peppers contain capsaicin In specific cases the claims of synergy34 and multifunctionality35 have been supported by science. The open question is how widely both can be generalized. Herbalists would argue that cases of synergy can be widely generalized, on the basis of their interpretation of evolutionary history, not necessarily shared by the pharmaceutical community. Plants are subject to similar selection pressures as humans and therefore they must develop resistance to threats such as radiation, reactive oxygen species and microbial attack in order to survive.36 Optimal chemical defenses have been selected for and have thus developed over millions of years.37Human diseases are multifactorial and may be treated by consuming the chemical defences that they believe to be present in herbs. Bacteria, inflammation, nutrition and ROS reactive oxygen species may all play a role in arterial disease.38 Herbalists claim a single herb may simultaneously address several of these factors. Likewise a factor such as ROS may underly more than one condition.39 In short herbalists view their field as the study of a web of relationships rather than a quest for single cause and a single cure for a single condition. In selecting herbal treatments herbalists may use forms of information that are not applicable to pharmacists. Because herbs can moonlight as vegetables, teas or spices they have a huge consumer base and large-scale epidemiological studies become feasible. Ethnobotanical studies are another source of information. 40 For example, when indigenous peoples from geographically dispersed areas use closely related herbs for the same purpose that is taken as supporting evidence for its efficacy.citation needed Herbalists contend that historical medical records and herbals are underutilized resources.41 They favor the use of convergent information in assessing the medical value of plants. An example would be when in-vitro activity is consistent with traditional use. Certain strains of herbalism rely on sources that would be widely considered unreliable and would not be accepted in a scientifically oriented herbal journal. These include astrology, the Bible, intuition, dreams, plant spirits, etc. Popularity A survey released in May 2004 by the National Center for Complementary and Alternative Medicine focused on who used complementary and alternative medicines CAM, what was used, and why it was used. The survey was limited to adults, aged 18 years and over during 2002, living in the United States. According to this survey, herbal therapy, or use of natural products other than vitamins and minerals, was the most commonly used CAM therapy 18.9% when all use of prayer was excluded.4243 Herbal remedies are very common in Europe. In Germany, herbal medications are dispensed by apothecaries e.g., Apotheke. Prescription drugs are sold alongside essential oils, herbal extracts, or herbal teas. Herbal remedies are seen by some as a treatment to be preferred to chemical medications which have been industrially produced.44 In the United Kingdom, the training of medical herbalists is done by state funded Universities. For example, Bachelor of Science degrees in herbal medicine are offered at Universities such as University of East London, Middlesex University, University of Central Lancashire, University of Westminster, University of Lincoln and Napier University in Edinburgh at the present. Types of herbal medicine systems Dioscorides' Materia Medica, c. 1334 copy in Arabic, describes medicinal features of cumin and dill. Dioscorides' Materia Medica, c. 1334 copy in Arabic, describes medicinal features of cumin and dill. Use of medicinal plants can be as informal as, for example, culinary use or consumption of an herbal tea or supplement, although the sale of some herbs considered dangerous is often restricted to the public. Sometimes such herbs are provided to professional herbalists by specialist companies. Many herbalists, both professional and amateur, often grow or wildcraft their own herbs. Some researchers trained in both western and traditional Chinese medicine have attempted to deconstruct ancient medical texts in the light of modern science. One idea is that the yin-yang balance, at least with regard to herbs, corresponds to the pro-oxidant and anti-oxidant balance. This interpretation is supported by several investigations of the ORAC ratings of various yin and yang herbs.4546 Eclectic medicine came out of the vitalist tradition, similar to physiomedicalism and bridged the European and Native American traditionscitation needed. Cherokee medicine tends to divide herbs into foods, medicines and toxins and to use seven plants in the treatment of disease, which is defined with both spiritual and physiological aspects, according to Cherokee herbalist David Winston.47 In India, Ayurvedic medicine has quite complex formulas with 30 or more ingredients, including a sizable number of ingredients that have undergone alchemical processing, chosen to balance Vata, Pitta or Kapha.48 In addition there are more modern theories of herbal combination like William LeSassier's triune formula which combined Pythagorean imagery with Chinese medicine ideas and resulted in 9 herb formulas which supplemented, drained or neutrally nourished the main organ systems affected and three associated systemscitation needed. His system has been taught to thousands of influential American herbalists through his own apprenticeship programs during his lifetime, the William LeSassier Archive49 and the David Winston Center for Herbal Studies50 Many traditional African remedies have performed well in initial laboratory tests to ensure they are not toxic and in tests on animals. Gawo, a herb used in traditional treatments, has been tested in rats by researchers from Nigeria's University of Jos and the National Institute for Pharmaceutical Research and Development. According to research in the African Journal of Biotechnology, Gawo passed tests for toxicity and reduced induced fevers, diarrhoea and inflammation 51 Routes of administration See also: Drying of herbs and spices The exact composition of a herbal product is influenced by the method of extraction. A tisane will be rich in polar components because water is a polar solvent. Oil on the other hand is a non-polar solvent and it will absorb non-polar compounds. Alcohol lies somewhere in between. There are many forms in which herbs can be administered, these include: Tinctures alcoholic extracts of herbs such as echinacea extract. Usually obtained by combining 100% pure ethanol or a mixture of 100% ethanol with water with the herb. A completed tincture has a ethanol percentage of at least 40-60% sometimes up to 90%. 52 Herbal wine and elixirs; these are alcoholic extract of herbs; usually with an ethanol percentage of 12-38% 52 Herbal wine is a maceration of herbs in wine, while an elixir is is a maceration of herbs in spirits eg vodka, grappa, ... Tisanes hot-water extracts of herb, such as chamomile Decoctions long-term boiled extract of usually roots or bark Macerates cold infusion of plants with high mucilage-content as sage, thyme, ... Plants are chopped and added to cold water. They are then left to stand for 7 to 12 hours depending on herb used. For most macerates 10 hours is used.52 Vinegars prepared at the same way as tinctures Topicals: Essential oils- application of essential oil extracts, usually diluted in a carrier oil many essential oils can burn the skin or are simply too high dose used straight - diluting in olive oil or another food grade oil can allow these to be used safely as a topical.53 Salves, oils, balms, creams and lotions- Most topical applications are oil extractions of herbs. Taking a food grade oil and soaking herbs in it for anywhere from weeks to months allows certain phytochemicals to be extracted into the oil. This oil can then be made into salves, creams, lotions, or simply used as an oil for topical application. Many massage oils, antibacterial salves and wound healing compounds are made this way. Poultices and compresses- One can also make a poultice or compress using whole herb or the appropriate part of the plant usually crushed or dried and re-hydrated with a small amount of water and then applied directly in a bandage, cloth or just as is. Whole herb consumption. This can occur in either dried form herbal powder, or fresh juice, fresh leaves and other plant parts. Just as Hippocrates said Let food be thy medicine, it has become clear that eating vegetables also easily fits within this category of getting health through consumables besides medicinal herbs. All of the vitamins, minerals and antioxidants are phytochemicals that we are accessing through our diet. There are clearly some whole herbs consumed that are more powerful than others. Shiitake mushrooms boost the immune system and are also tasty so they are enjoyed in soups or other food preparations for the cold and flu season. Alfalfa is also considered a health food.54. Garlic lowers cholesterol, improves blood flow, fights bacteria, viruses and yeast. Syrups: extracts of herbs made with syrup or honey. Sixty five parts of sugar are mixed with 35 parts of water and herb. The whole is then boiled and macerated for three weeks.52 Extracts: include liquid extracts, dry extracts and nebulisates. Liquid extracts are liquids with a lower ethanol percentage than tinctures. They can and are usually made by vacuum distilling tinctures. Dry extracts are extracts of plant material which are evaporated into a dry mass. They can then be further refined to a capsule or tablet. 52. A nebulisate is a dry extract created by freeze-drying. Inhalation as in aromatherapy can be used as a mood changing treatment55citation needed, to fight a sinus infection or coughcitation needed, or to cleanse the skin on a deeper levelcitation needed steam rather than direct inhalation here. Examples of plants used as medicine The following text needs to be harmonized with text in the article List of plants used as medicine. See e.g. :Summary style. Main article: List of plants used as medicine Few herbal remedies have conclusively demonstrated any positive effect on humans, mainly because of inadequate testing.56 Many of the studies cited refer to animal model investigations or in-vitro assays and therefore cannot provide more than weak supportive evidence. Artichoke may reduce production cholesterol levels according to in vitro studies 57 and a small clinical study.58 Soy and other plants that contain phytoestrogens plant molecules with estrogen activity black cohosh probably has serotonin activity have some benefits for treatment of symptoms resulting from menopause.59 Butterbur Petasites Calendula Cranberry may be effective in treating urinary tract infections in women with recurrent symptoms.60 Echinacea extracts may limit the length and severity of rhinovirus colds; however, the appropriate dosage levels, which might be higher than is available over-the-counter, require further research.6162 Elderberry may speed the recovery from type A and B influenza.63 However it is possibly risky in the case of avian influenza because the immunostimulatory effects may aggravate the cytokine cascade.64 Feverfew is sometimes used to treat migraine headaches.65However, many reviews of these studies show no or unclear efficacy.6667 However a more recent RTC showed favorable results,68Feverfew is not recommended for pregnant women as it may be dangerous to the fetus.6970 Gawo, a traditional herbal medicine in West Africa, has shown promise in animal tests 71 Garlic may lower total cholesterol levels72 German Chamomile Ginger Purified extracts of the seeds of Hibiscus sabdariffa may have some antihypertensive, antifungal and antibacterial effect. Toxicity tested low except for an isolated case of damage to the testes of a rat after prolonged and excessive consumption.73 Magnolia Milk thistle Nigella sativa Black cumin has demonstrated analgesic properties in mice. The mechanism for this effect, however, is unclear. In vitro studies support antibacterial, antifungal, anticancer, anti-inflammatory and immune modulating effects.747576777879808182838485 However few randomized double blind studies have been published. Oregano may be effective against multi-drug resistant bacteria.86 Pawpaw can be used for insecticidal purposes killing lice, worms.87,88 Phytolacca or Pokeweed is used as a homeopathic remedy to treat many ailments. It can be applied topically or taken internally. Topical treatments have been used for acne and other ailments. It is used to treatment tonsilitis, swollen glands and weight loss.citation needed Peppermint oil may have benefits for individuals with irritable bowel syndrome.8990 Pomegranate Rauvolfia Serpentina, high risk of toxicity if improperly usedcitation needed, used extensively in India for sleeplessness, anxiety, and high blood pressure.91 Salvia lavandulaefolia may improve memory92 St. John's wort, has yielded positive results, proving more effective than a placebo for the treatment of mild to moderate depression in some clinical trials93 A subsequent, large, controlled trial, however, found St. John's wort to be no better than a placebo in treating depression94 However more recent trials have shown positive results959697 or positive trands that failed significance.98 A 2004 meta-analysis concluded that the positive results can be explained by publication bias99 but later analyses have been more favorable.100101The Cochrane Database cautions that the data on St. John's wort for depression are conflicting and ambiguous.102 Saw Palmetto can be used for BPH. Supported in some studies,103 failed to confirm in otherrs.104 Shiitake Stinging nettle In some clinical studies effective for enign prostatic hyperplasia105 and the pain associated with osteoarthritis.106 In-vitro tests show antiinflammatory action.107 In a rodent model, stinging nettle reduced LDL cholesterol and total cholesterol. 108 In another rodent study it reduced platelet aggregation.109 Valerian root can be used to treat insomnia. Clinical studies show mixed results and researchers note that many trials are of poor quality.110111112 Vanilla Ocimum gratissimum113114 and tea tree oil can be used to treat acne. Green tea components may inhibit growth of breast cancer cells115 and may heal scars faster.116 Lemon grass can lower cholesterol.citation needed Honey may reduce cholesterol.117 May be useful in wound healing.118 Risks In some cases, herbal medicines offer an inexpensive and safe alternative to pharmaceuticals. In the U.S., which has just 4% of the world's population, 106,000 patients died from and 2.2 million were seriously injured by adverse effects of pharmaceuticals in the year 1994 Journal of the American Medical Association 2. Proper double-blind clinical trials are needed to determine the safety and efficacy of each plant before they can be recommended for medical use.119 In addition, many consumers believe that herbal medicines are safe because they are natural. Herbal medicines may interact with synthetic drugs causing toxicity to the patient, herbal products may have contamination that is a safety consideration, and herbal medicines, without proven efficacy, may be used to replace medicines that have a proven efficacy.56 Standardization of purity and dosage is not mandated in the United States, but even products made to the same specification may differ as a result of biochemical variations within a species of plant.120 Plants have chemical defense mechanisms against predators that can have adverse or lethal effects on humans. Examples of highly toxic herbs include poison hemlock and nightshade.121 They are not marketed to the public as herbs, because the risks are well known, partly due to a long and colorful history in Europe, associated with sorcery, magic and intrigue.122 Although not frequent, adverse reactions have been reported for herbs in widespread use.123 On occasion serious untoward outcomes have been linked to herb consumption. A case of major potassium depletion has been attributed to chronic licorice ingestion.124 Black cohosh has been implicated in a case of liver failure.125Few studies are available on the safety of herbs for pregnant women.126127 Herb drug interactions are a concern. In consultation with a physician, usage of herbal remedies should be clarified, as some herbal remedies have the potential to cause adverse drug interactions when used in combination with various prescription and over-the-counter pharmaceuticals. Dangerously low blood pressure may result from the combination of an herbal remedy that lowers blood pressure together with prescription medicine that has the same effect. Some herbs may amplify the effects of anticoagulants.128 Certain herbs as well as common fruit interfere with cytochrome P450, an enzyme critical to drug metabolism.129 Effectiveness Running total of the number of research papers listed on PubMed from 1990-2007 containing the word phytotherapy. Running total of the number of research papers listed on PubMed from 1990-2007 containing the word phytotherapy. The gold standard for pharmaceutical testing is repeated, large-scale, randomized, double-blind tests. Some plant products or pharmaceutical drugs derived from them are incorporated into mainstream medicine. To recoup the considerable costs of testing to the regulatory standards, the substances are patented by pharmaceutical companies and sold at a substantial profit.130 Most herbal traditions have developed without modern scientific controls to distinguish between the placebo effect, the body's natural ability to heal itself, and the actual benefits of the herbs themselves.citation needed Many herbs have shown positive results in in-vitro, animal model or small-scale clinical tests131 but many studies on herbal treatments have also found negative results.132 The quality of the trials on herbal remedies is highly and many trials of herbal treatments have been found to be of poor quality, with many trials lacking a intention to treat analysis or a comment on whether blinding was successful.133 The few randomized, double-blind tests that receive attention in mainstream medical publications are often questioned on methodological grounds or interpretation. Likewise, studies published in peer-reviewed medical journals such as Journal of the American Medical Association receive more consideration than those published in specialized herbal journals. This preference may be due to the possibility of location bias for such trials. One study found that non-impact factor alternative medicine journals published more studies with positive results than negative results and that trials finding positive results were of lower quality than trials finding negative results. High impact factor mainstream medical journals, on the other hand, published equal numbers of trials with positive and negative results. In high impact journals, trials finding positive results were also found to have lower quality scores than trials finding negative results.134 Another study found studies of phyomedicine to have superior quality to matched studies of pharmaceuticals.135 However, this study used a matched pair design and excluded all herbal trials that were not controlled, did not use a placebo or did not use random or quasi random assignment. Herbal medical systems such as Siddha Vaidya and Ayurveda that were in existence for thousands of years, however, offer a different picture. These systems had the luxury of having thousands of years of experience on humans and as a consequence, the formulae now in existence were proved harmless or has the least side effects. Even when a combination is known to have side effects, other herbal remedies are evolved to counter those side effects. Herbalists criticize mainstream studies on the grounds that they make insufficient use of historical use. They maintain that tradition can guide the selection of factors such as optimal dose, species, time of harvesting and target population.136 Dosage is in general an outstanding issue for herbal treatments: while most conventional medicines are heavily tested to determine the most effective and safest dosages especially in relation to things like body weight, drug interactions, etc., there are few established dosage standards for various herbal treatments on the market.citation needed Furthermore, herbal medicines taken in whole form cannot generally guarantee a consistent dosage or drug quality since certain samples may contain more or less of a given active ingredient. Several methods of standardization may be applied to herbs. One is the ratio of raw materials to solvent. However different specimens of even the same plant species may vary in chemical content. Another method is standardization on a signal chemical.137 Clinical studies In 2004 the U.S. National Center for Complementary and Alternative Medicine of the National Institutes of Health began funding clinical trials into the effectiveness of herbal medicine.138 Name confusion The common names of herbs folk taxonomy may not reflect differences in scientific taxonomy, and the same or a very similar common name might group together different plant species with different effects. For example, in 1993 in Belgium, a formula created by medical doctors including some Traditional Chinese medicine TCM herbs for weight loss, one herb Stephania tetrandra was swapped for another Aristolochia fangchi whose name in Chinese was extremely similar but which contained higher levels of a renal toxin, aristolochic acid; this quid pro quo resulted in 105 cases of kidney damage.139140 Note that neither herb used in a TCM context would be used for weight loss or given for long periods of time. In Chinese medicine these herbs are used for certain forms of acute arthritis and edema.141142143 Standards and quality control The issue of regulation is an area of continuing controversy in the EU and USA. At one end of the spectrum, some herbalists maintain that traditional remedies have a long history of use, and do not require the level of safety testing as xenobiotics or single ingredients in an artificially concentrated form.citation needed On the other hand, others are in favor of legally enforced quality standards, safety testing and prescription by a qualified practitioner.citation needed Some professional herbalist organizations have made statements calling for a category of regulation for herbal products.144 Yet others agree with the need for more quality testing but believe it can be managed through reputation without government intervention.145The legal status of herbal ingredients varies by country. In the United States, most herbal remedies are regulated as dietary supplements by the Food and Drug Administration.citation needed Manufacturers of products falling into this category are not required to prove the safety or efficacy of their product, though the FDA may withdraw a product from sale should it prove harmful.146147 The National Nutritional Foods Association, the industry's largest trade association, has run a program since 2002, examining the products and factory conditions of member companies, giving them the right to display the GMP Good Manufacturing Practices seal of approval on their products.47 In the UK, herbal remedies that are bought over the counter are regulated as supplements, as in the UScitation needed. However, herbal remedies prescribed and dispensed by a qualified Medical Herbalist, after a personal consultation, are regulated as medicines. A Medical Herbalist can prescribe some herbs which are not available over the counter, covered by Schedule III of the Medicines Actcitation needed. Forthcoming changes to laws regulating herbal products in the UK, are intended to ensure the quality of herbal products usedcitation needed. Some herbs, such as cannabis, however, are outright banned in most countries for various reasons. Since 2004, the sales of ephedra as an dietary supplement is prohibited in the United States by the FDA.148 Danger of extinction On January 18, 2008, the Botanic Gardens Conservation International representing botanic gardens in 120 countries stated that 400 medicinal plants are at risk of extinction, from over-collection and deforestation, threatening the discovery of future cures for disease. These included Yew trees the bark is used for cancer drugs, paclitaxel; Hoodia from Namibia, source of weight loss drugs; half of Magnolias used as Chinese medicine for 5,000 years to fight cancer, dementia and heart disease; and Autumn crocus for gout. The group also found that 5 billion people benefit from traditional plant-based medicine for health care149 Further reading Lesley Braun and Marc Cohen. 2007. Herbs and Natural Supplements: An Evidence-Based Guide. Elsevier Australia. ISBN 072953796X 9780729537964. See also Wikimedia Commons has media related to: Herbalism Herb garden Anesthesia Siddha Ayurveda Chinese herbology Doctrine of signatures Ethnobotany Gemmotherapy History of alternative medicine Home remedy Homeopathy King's American Dispensatory List of plants used as medicine Naturopathic medicine Pharmacognosy Bach flower remedies References ^ Lai PK Jun 2004. Antimicrobial and chemopreventive properties of herbs and spices. Curr Med Chem: 1451-60. 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PMID 11416076. ^ Location bias in controlled clinical trials of complementary/alternative therapies 2000. International Journal of Epidemiology 53 5: 485-489. ^ Matched-pair study showed higher quality of placebo-controlled trials in Western phytotherapy than conventional medicine August 2007. Journal of Clinical Epidemiology Volume 60, Issue 8, Pages 787.e1-e15 60 8. ^ Dilemmas of Traditional Botanical Research 2002. HerbalGram. 55: 46-54. ^ What is Herb Standardization? 2001. HerbalGram. 52: 25. ^ Herbal Medicine, NIH Institute and Center Resources, National Center for Complementary and Alternative Medicine, National Institutes of Health. ^ Complexities of the herbal nomenclature system in traditional Chinese medicine TCM: lessons learned from the misuse of Aristolochia-related species and the importance of the pharmaceutical name during botanical drug product development 2007 Apr. Phytomedicine.;:. Epub 2006 Jul 24 14 4: 273-9. PMID : 16863692. ^ Misuse of herbal remedies: the case of an outbreak of terminal renal failure in Belgium Chinese herbs nephropathy 1998 Spring. J Altern Complement Med. 4 1: 9-13. PMID : 9553830. ^ Dan Bensky, Steven Clavey, Erich Stoger, and Andrew Gamble. Chinese Herbal Medicine: Materia Medica, Third ion. 2004: 1054-1055 ^ Vanherweghem JL, Depierreux M, Tielemans C, et al. Rapidly progressive interstitial renal fibrosis in young women: association with slimming regimen including Chinese herbs. Lancet. 1993 Feb 13;3418842:387-91. ^ Vanhaelen M, Vanhaelen-Fastre R, But P, Vanherweghem JL. Identification of aristolochic acid in Chinese herbs. Lancet. 1994 Jan 15;3438890:174. PMID 7904018 ^ Wrangling an Herbal Legen. ^ Some Arguments against the Standardization of Herbalists. ^ US Dietary Supplement Health and Education Act of 1994 ^ Goldman P 2001. Herbal medicines today and the roots of modern pharmacology. Ann. Intern. Med. 135 8 Pt 1: 594-600. PMID 11601931. ^ FDA Issues Regulation Prohibiting Sale of Dietary Supplements Containing Ephedrine Alkaloids and Reiterates Its Advice That Consumers Stop Using These Products ^ BBC NEWS, Medical plants 'face extinction' External links Associations National Herbalists Association of Australia, official website National Institute of Medical Herbalists, official website of the National Institute of Medical Herbalists, one of the governing bodies for herbalists in the United Kingdom College of Practitioners of Phytotherapy official website for College of Practitioners of Phytotherapy, one of the governing bodies for herbalists in the United Kingdom American Herbalists Guild- An Association of Herbal Practitioners, official website of the American Herbalists Guild Herbalist Herb Research Foundation Research and educational foundation. HerbMed Research and educational foundation. Medline All Herbs and Supplements. Phytochemical and Ethnobotanical Databases Dr. Duke's Ethnobotanical Databases. Criticism New England Journal of Medicine orial about the risks of alternative medicine Herbal supplements not child's play - CNN news article Herbal Mythology - By Steven Novella MD, President of the New England Skeptical Society Selling Supplements - By Steven Novella MD, President of the New England Skeptical Society False Tenets of Paraherbalism v d e Dietary supplements Types Amino acids Bodybuilding supplement Energy drink Energy bar Fatty acids Herbal Supplements Minerals Prebiotics Probiotics Lactobacillus, Bifidobacterium Vitamins Whole food supplements Vitamins and minerals Retinol Vitamin A B vitamins: Thiamine B1 Riboflavin B2 Niacin B3 Pantothenic acid B5 Pyridoxine B6 Biotin B7 Folic acid B9 Cyanocobalamin B12 Ascorbic acid Vitamin C Ergocalciferol and Cholecalciferol Vitamin D Tocopherol Vitamin E Naphthoquinone Vitamin K Calcium Choline Chlorine Chromium Cobalt Copper Fluorine Iodine Iron Magnesium Manganese Molybdenum Phosphorus Potassium Selenium Sodium Sulfur Zinc Other common ingredients Carnitine Chondroitin sulfate Cod liver oil Copper gluconate Creatine/Creatine supplements Dietary fiber Elemental calcium Ephedra Fish oil Folic acid Ginseng Glucosamine Glutamine Iron supplements Japanese Honeysuckle Krill oil Lingzhi Linseed oil Melatonin Red yeast rice Royal jelly Saw palmetto Spirulina Taurine Wheatgrass Wolfberry Yohimbine Zinc gluconate Related articles Codex Alimentarius Enzyte Metabolife Hadacol Nutraceutical Multivitamin Nutrition Retrieved from http://en..org/wiki/Herbalism Categories: Herbalism | Alternative medical systems | Alternative medicine | Biologically based therapies | Dietary supplementsHidden categories: All pages needing cleanup | articles needing factual verification since December 2007 | All pages needing factual verification | articles needing factual verification since November 2007 | All articles with statements | Articles with statements since February 2008 | Articles with statements since July 2007 | Articles with statements since December 2007 | Articles to harmonize | Articles with statements since June 2007 | Articles with statements since February 2007 Views Article Discussion this page History Personal tools Log in / create account Navigation Main page Contents Featured content Current events Random article Search Go Search Interaction Community portal Recent changes Contact Donate to Help Toolbox What links here Related changes Upload file Special pages Printable version Permanent link Cite this page Languages العربية БългарÑ?ки Deutsch Esperanto Ù?ارسی Français Italiano עברית Lëtzebuergesch Magyar Nederlands 日本語 Polski Português РуÑ?Ñ?кий СрпÑ?ки / Srpski Svenska This page was last modified on 11 August 2008, at 22:05
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2. Pay $39 for your Wholesale ID number.
3. NO minimum order required.
4. MonaVie is delivered to your door in 3 to 5 days.