Nettle, Urtica

Allergenic plants causing skin eruption by contact include poison ivy (Rhus radicans L.), poison oak (Rhus toxicodendron L.), poison sumac (Rhus vernix L.), and stinging nettle (Urtica dioica L.). In the United States, poison ivy and poison oak cause nearly 2 million cases of skin poisoning and skin irritation annually, for a loss of 333,000 working days. In addition, these weeds cause 3.7 million days of restricted activity among those people who are susceptible to the toxins (1). 

Although widely used in Europe for BPH, phytotherapy with products such as saw palmetto berry (Serenoa repens), stinging nettle (Urtica dioica),... 

Skin - pain and stinging sensation Nettles (Urtica) Fine tubes contain histamine, acetylcholine and serotonin... 

Wenneker M., Verdel, M.S.W., Groeneveld, R.M.W., Kempenaar, C., van Beuningen, A.R. and Janse, J.D. 1999. Ralstonia (Pseudomonas) solanacearum race 3 (biovar 2) in surface water and natural weed hosts first report on stinging nettle (Urtica dioica). European Journal of Plant Pathology 105 307-315. 

Wood nettle Urtica divarication (L.) Dicot, angiosperm... 

Nettles Urtica dioica Bast (whole stems) Thread, cloth... 

Szabo, Z. et al. Analysis of nitrate ion in nettle (Urtica dioica L.) by ion-pair chromatographic method on a C30 stationary phase. J. Agr. Food Chem. 2006, 54, 4082-4086. Yokoyama, Y. et al. Optimum combination of reversed phase column type and mobile phase composition for gradient elution ion-pair chromatography of amino acids. Anal. Sci. 1997, 13, 963-967. 

Szabo, Z. et al. Analysis of nitrate ion in nettle Urtica dioica L.) by ion-pair chromatographic method on a C30 stationary phase. J. Agr. Food Chem. 2006, 54, 4082-4086. 

Cutaneous irritation, e.g. directly with nettle (Urtica), or dermatitis following sensitisation with Primula. 

Acute urticaria (named after its similarity to the sting of a nettle, Urtica) and angioedema usually respond well to Hj receptor antihistamines, although severe cases are relieved more quickly with use of adrenaline (epinephrine) (adrenaline injection 1 mg/ml 0.1-0.3 ml, s.c.). A systemic corticosteroid may be needed in severe cases. 

Impila, ox-eye daisy Callilepis laureola Stinging nettle Urtica dioica... 

Serenoa repens), stinging nettle Urtica dioicd), and African plum (Pygeum africanumf —are not recommended for BPH. An excellent review on phytotherapy for BPH has been published. ... 

Wagner H, Rachsbarth H, Vogel G. A new antiprostatic principal of stinging nettle Urtica dioicd) roots. Phytomedicine 1994 1 213-224. 

The elemental distribution of Ca, Si, and Mn in the hair of the common stinging nettle Urtica dioica) obtained using the Oxford University PIXE microprobe. The color code for Ca is yellow, >3.4 M orange, 2.0-3.4 M red, 1.5-2.0 M dark blue, 1-1.5 M blue, 0.5-1.0 M light blue, 0.1-0.5 M white, <0.1 M. The color codes of Si and Mn are similar. The PIXE data show that the tip mainly is made up of Si (presumably amorphous silica), but the region behind is largely made up of Ca (calcium oxalate crystals). The base of the hair contains substantial amounts of Mn. The pictures were kindly provided by R. J. P. Williams. 

Wain, Fawcett, Taylor and their coworkers investigated the effect of several (D-phenoxy acid homologues on wheat, tomato, pea, flax, nettle ( Urtica urens) and on other weeds (Wain, 1954 1955a 1955b Wain and Wightman, 1955 Wain, 1957 Fawcett et al., 1958 Fawcett et al., 1959 1960 Taylor and Wain, 1962). They established as a result of their exemplary systematic fundamental research... 

Substituted anilinocarbonyl)isoxazolidines (80) are effective as the herbicides for a variety of weeds, such as wild oats (A vena fatua), charlock (Sinapis arvensis), red shanks (Polygonum persicaria), stinging nettle (Urtica urens), and chickweed (Stellaria media).200... 

Wallace et al. (1977), in describing symptoms of titanium toxicity, reported that chlorotic and necrotic spots occurred on the leaves of bush beans containing about 200 mg Ti kg DM. Titanium levels in plants range from 0.15 to 6.5 mgkg DM, and some species of plants, including horsetail Equisetum sp.) and nettle Urtica sp.), as well as certain diatoms, can accumulate much higher levels of the element (Kabata-Pendias 2000). Various titanium compounds were shown not to be mutagenic in Bacillus subtilis (Nordman and Berlin 1986). 

Edwards, S.C., MacLeod, C.L., Lester, J.N., 1998. The bioavailability of copper and mercury to the common nettle Urtica dioica) and the earthworm Eisenia ferida from contaminated dredge spoil. Water Air Soil Pollut. 102, 75-90. 

J. J. Beintema and W. J. Penmans, The primary structure of stinging nettle (Urtica dioica) agglutirrin—a 2-domain member of the hevein family, FEBS Lett., 299 (1992) 131-134. 

Caliskaner, Z., M. Karaa)waz, and S. Ozturk. 2004. Misuse of a herb Stinging nettle (Urtica mens) induced severe tongue oedema. Complement. Ther. Med. 12(l) 57-58. 

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