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Botanical Name: Hypericum perforatum
Species: H. perforatum
Common Names: St. John’s wort, hypericum, Klamath weed, goat weed
Other Names: Spotted St. John’s wort, Hypericum, Klamath Weed, Touch-and-heal, Goat weed, Rosin Rose
St. John’s Wort is a perennial herb native to North America and Canada from Nova Scotia, Ontario Quebec south to the United States, eastern states. Found growing in open sunny or partial shady areas, along roadsides in dry, gravelly soils.
St John’s wort is a perennial plant with extensive, creeping rhizomes. Its stems are erect, branched in the upper section, and can grow to 1 m high. It has opposing, stalkless, narrow, oblong leaves which are 12 mm long or slightly larger. The leaves are yellow-green in color, with transparent dots throughout the tissue and occasionally with a few black dots on the lower surface. Its flowers measure up to 2.5 cm across, have five petals, and are colored bright yellow with conspicuous black dots. The flowers appear in broad cymes at the ends of the upper branches. The sepals are pointed, with glandular dots in the tissue. There are many stamens, which are united at the base into three bundles.
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St John’s wort can be visually recognized by leaf and flower type. Yellow, five petaled flowers approximately 20 mm across occur between late Spring and early to mid Summer. Leaves exhibit obvious translucent dots when held up to the light, giving them a ‘perforated’ appearance, hence the plant’s Latin name. When flowers or seed pods are crushed, a reddish/purple liquid is produced.
St. John’s Wort is easy to grow from seed or root division in spring or autumn, in any well-drained but moisture retentive soil. Succeeds in dry soils, prefers sun or semi-shade.
.Seedlings of St John’s wort-
Herb and flowers contain different flavonoids (rutin, hyperoside, isoquercetin, quercitrin, quercetin, I3,II8-biapigenin, amentoflavone, astilbin, miquelianin). Phenolic acids (chlorogenic acid, 3-O-coumaroylquinic acid). Different naphtodianthrones (hypericin, pseudohypericin, protohypericin, protopseudohypericin), phloroglucinols (hyperforin, adhyperforin). And also essential oils (composed mainly of sesquiterpenes). The naphthodianthrones hypericin and pseudohypericin along with the Phloroglucinol derivative hyperforin are thought to be the active components.
Herbal Use and Medicinal Properties:-
There are 400 species of St. John’s Wort found throughout the world, it has been used as a medicinal for thousands of years, but has only recently been studied for its medicinal value. Now proven to have many highly active compounds including rutin, pectin, choline, sitosterol, hypericin and pseudohypericin. The flowers and leaves are medicinal as analgesic, antiseptic, antispasmodic, aromatic, astringent, cholagogue, digestive, diuretic, expectorant, nervine, resolvent, sedative, stimulant, vermifuge and vulnerary. Some compounds of the plant have been shown to have potent anti-retroviral activity without serious side effects and they are being researched in the treatment of AIDS.Hypericum perforatum is thought to be a mild antidepressant of the class “MAO inhibitor.” The mechanism by which St. John’s Wort acts as an antidepressant is not fully understood. Early research indicated that this it mildly inhibits the enzyme monoamine oxidase (MAO). MAO is responsible for the breakdown of two brain chemicals – serotonin and nor epinephrine. By inhibiting MAO and increasing nor epinephrine, it may exert a mild anti-depressive action. The antidepressant or mood elevating effects of Hypericum perforatum were originally thought to be due solely to hypericin, but hypericin does not act alone, it relies on the complex interplay of many constituents such as xanthones and flavonoids for its antidepressant actions. Hypericum perforatum may also block the receptors that bind serotonin and so maintain normal mood and emotional stability.
Hypericum perforatum is used in treating a wide range of disorders, including pulmonary complaints, bladder problems, diarrhea and nervous depression. It is also very effectual in treating bed wetting in children. It has a sedative and pain reducing effect, it is especially regarded as an herb to use where there are menopausal changes triggering irritability and anxiety. In addition to neuralgic pain, it will ease fibrosistis, sciatica and rheumatic pain. The oil extract of the plant can be taken for stomach ache, colic, intestinal problems, and as an expectorant for the congestion in the lungs. Externally, a medicinal infusion of the flowers in olive oil is applied to wounds, sores, burns, ulcers, swellings, cramps, rheumatism, tumors, caked breasts, and other skin problems. It is also valued in the treatment of sunburn and as a cosmetic preparation to the skin. Persons with fair skin should avoid exposure to strong sunlight and other sources of ultraviolet light, such as tanning beds, while taking St. John’s Wort. These individuals may suffer a dermatitis, severe burning, and possibly blistering of the skin. The severity of these effects will depend on the amount of the plant consumed and the length of exposure to sunlight.
There are many ancient superstitions regarding this plant, its name Hypericum is derived from the Greek and means ‘over an apparition,’ a reference to the belief that it smelled so obnoxious to evil spirits that a whiff of it would cause them to fly. The plant was given to have magical powers. In ancient Greece, the herb was used to treat many ailments, including sciatica and poisonous reptile bites.
For depression the usual dose is 300 mg 3 times a day. Timed release capsules are now on the market as well.One should remember to take it once a day. Effects should be felt within a few weeks.
“Medicinal” tea: Pour 1 cup of boiling water over l-2 teaspoonfuls of the dried herb and steep for l0-l5 minutes. This should be drunk three times a day.
Oil: Fill a pint jar loosely with dried herb, poor olive oil to top, seal tightly and allow to infuse for 4 to 5 weeks, shaking the jar occasionally.
What the Science Says:-
*There is some scientific evidence that St. John’s wort is useful for treating mild to moderate depression. However, two large studies, one sponsored by NCCAM, showed that the herb was no more effective than placebo in treating major depression of moderate severity.
*NCCAM is studying the use of St. John’s wort in a wider spectrum of mood disorders, including minor depression.
Side Effects and Cautions:-
*St. John’s wort may cause increased sensitivity to sunlight. Other side effects can include anxiety, dry mouth, dizziness, gastrointestinal symptoms, fatigue, headache, or sexual dysfunction.
*Research shows that St. John’s wort interacts with some drugs. The herb affects the way the body processes or breaks down many drugs; in some cases, it may speed or slow a drug’s breakdown. Drugs that can be affected include:
*Birth control pills
*Cyclosporine, which prevents the body from rejecting transplanted organs
*Digoxin, which strengthens heart muscle contractions
*Indinavir and possibly other drugs used to control HIV infection
*Irinotecan and possibly other drugs used to treat cancer
*Warfarin and related anticoagulants
*When combined with certain antidepressants, St. John’s wort may increase side effects such as nausea, anxiety, headache, and confusion.
*St. John’s wort is not a proven therapy for depression. If depression is not adequately treated, it can become severe. Anyone who may have depression should see a health care provider. There are effective proven therapies available.
*Tell your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care.
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Disclaimer:The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.