UrticaDioica01

Plants Pacific Northwest

Urtica Dioica - Stinging nettle

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Plate 176

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Urtica Dioica: Stinging nettle, Big string Nettle, Common Nettle, Gerrais, Isirgan, Kazink, Nabat Al Nar, Ortiga, Ortiga Mayor.

Nettles, or stinging nettles, are a perennial plant growing worldwide in wasteland areas. It grows 2-7 feet high with pointed leaves and flowers of white to yellowish panicles. Nettles have a reputation for their savage sting from the hairs and bristles present on the leaves and stems. The stinging sensation from contact with the hairs is caused by the presence of formic acid, amines (histamine, serotonin and choline).The tea of the leaves and stems has been used in traditional medicine as a poultice to stop bleeding. An account of this use is recorded by Francis P. Procher, a surgeon and physician in the Southern Confederacy. The nettle leaves were recommended by the plant forager Euell Gibbons as a nutritious food and as a weight loss aid. Many remarkable healing properties have been attributed to nettles, including prevention of baldness, allergic rhinitis and rheumatic pain. However, the nettle root is recommended as a diuretic and, relatively recently for relief of benign prostatic hyperplasia (BPH).

Nettle root constituents include lignans, scopoletin, sterols (beta sitosterol and sito-sterol-3-o-glucoside), oleannoic acid and 9-hydroxyl-10-trans-12-cis-octadecanoic acid. Other chemicals are the high molecular weight compounds such as five acids and neutral polysaccharides and isolectins.

There are several clinical studies documenting the efficacy of nettle root for BPH. Dr. Varro E. Tyler reported on a paper from the 1995 Congress on Medicinal Plant Research that J.J. Lichius and colleagues showed a reduction in prostatic growth potential in mice with the administration of a high dosage of nettle root extract. Another study using saw palmetto berries and nettle root extracts to treat patients with BPH showed an inhibition of the testosterone metabolites dihydrotestosterone and estrogen, thus proving to be an effective treatment. Some of the more resent research on BPH and Nettles show that Nettles can interfere or block a chemical process in the body that has been linked to prostate disorders. As men age, free-floating testosterone becomes bound to albumin in a process called human sex hormone-binding globulin (SHBG), removing its bioavailability to the body. This chemical process is now believed to be linked to prostate disorders. In several clinical studies, nettles has demonstrated the ability to block this process which may well explain its documented effectiveness in the treatment of many prostate conditions. Since testosterone is a natural aphrodisiac, and nettles makes more testosterone bioavailable for the body's use by blocking SHBG, this may also explain why nettles has recently been regarded with aphrodisiac properties.