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arctostaphylos_uva-ursi_l._spreng

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arctostaphylos_uva-ursi_l._spreng [2014/06/20 15:03]
andreas 		arctostaphylos_uva-ursi_l._spreng [2015/04/23 14:30]
andreas
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 Mat-forming evergreen shrub with rooting branches, 20-60cm high; leaves alternate, obovate to spatulate, leathery, both sides dark green, margins not revolute, lower side of leaves with reticulate venation (leaves of  the similar Vaccinium vitis-idaea with oil dots on this side); jug-shaped, nearly globular flowers, white tinged with pink; inflorecence a  raceme; fruits are globular, glossy red berries. Mat-forming evergreen shrub with rooting branches, 20-60cm high; leaves alternate, obovate to spatulate, leathery, both sides dark green, margins not revolute, lower side of leaves with reticulate venation (leaves of  the similar Vaccinium vitis-idaea with oil dots on this side); jug-shaped, nearly globular flowers, white tinged with pink; inflorecence a  raceme; fruits are globular, glossy red berries.
  
-**Arctostaphylos uva-ursi leaves**, bearberry leaves, Folia uvae ursi, Uvae ursi folium, Bärentraubenblaetter [Hager, Wichtl, DAB10Ko, BI, BHP83, CRC] \\+**Arctostaphylos uva-ursi leaves**, bearberry leaves, Folia uvae ursi, Uvae ursi folium, Bärentraubenblaetter \\ [Hager, Wichtl, DAB10Ko, BI, BHP83, CRC] \\
 Definition. Fast dried leaves of Arctostaphylos uva-ursi, collected in winter or spring. The obovate to spatulate leaves with shiny dark green to yellow-green upper surface own a astringent and slightly bitter taste. \\ Definition. Fast dried leaves of Arctostaphylos uva-ursi, collected in winter or spring. The obovate to spatulate leaves with shiny dark green to yellow-green upper surface own a astringent and slightly bitter taste. \\
-Constituents. Phenolic glucosides, mainly arbutin (the glucoside of hydroquinone, 4-12% or even more) and methylarbutin (0-2.5%), as well as traces of piceoside (salinigrin, p-hydroxyacetophenone-D-glucoside), esters (at position 2 and 4 of the sugar) of arbutin with gallic acid. Sometimes also traces of free hydroquinone can be found. The drug is rich in tannin (10-40% reported), mostly derived from gallic acid and thus hydrolizable. Further constituents are flavanol glycosides like hyperoside (0.8-1.5%), quercitrin, isoquercitrin and myricitrin, free gallic, quinic and ursolic acid, and allantoin. [DAB10Ko; Hager; CRC; Wichtl; Thieme H, Winkler HJ, Pharmazie, 26, (1978), 235-43; Karikas GA, Euerby MR, Waigh RD, Planta Med., 53, (1987), 307-8;  Britton G, Haslam E, J. Chem. Soc., (1965), 7312-19; Herrmann K, Arch. Pharm. (Weinheim), 286, (1953), 515-523;  Waehner CH, Schoenert J, Friedrich H, Pharmazie, 29, (1974), 616] \\+Constituents. Phenolic glucosides, mainly [[http://de.wikipedia.org/wiki/Arbutin|arbutin]] (the glucoside of hydroquinone, 4-12% or even more) and methylarbutin (0-2.5%), as well as traces of piceoside (salinigrin, p-hydroxyacetophenone-D-glucoside), esters (at position 2 and 4 of the sugar) of arbutin with gallic acid. Sometimes also traces of free hydroquinone can be found. The drug is rich in tannin (10-40% reported), mostly derived from gallic acid and thus hydrolizable. Further constituents are flavanol glycosides like hyperoside (0.8-1.5%), quercitrin, isoquercitrin and myricitrin, free gallic, quinic and ursolic acid, and allantoin. [DAB10Ko; Hager; CRC; Wichtl; Thieme H, Winkler HJ, Pharmazie, 26, (1978), 235-43; Karikas GA, Euerby MR, Waigh RD, Planta Med., 53, (1987), 307-8;  Britton G, Haslam E, J. Chem. Soc., (1965), 7312-19; Herrmann K, Arch. Pharm. (Weinheim), 286, (1953), 515-523;  Waehner CH, Schoenert J, Friedrich H, Pharmazie, 29, (1974), 616] \\
 Effects. The drug is astringent. An antibacterial activity of arbutin metabolites in urine against E.coli and Staph. aureus in vitro could be shown only after alkalisation of the urine. An alkaline urine could be achieved in vivo by simultaneous administration of sodium bicarbonate or pure vegetable food. [Hager; Wichtl; Frohne D, Planta Med., 18, (1970), 1-25] \\ Effects. The drug is astringent. An antibacterial activity of arbutin metabolites in urine against E.coli and Staph. aureus in vitro could be shown only after alkalisation of the urine. An alkaline urine could be achieved in vivo by simultaneous administration of sodium bicarbonate or pure vegetable food. [Hager; Wichtl; Frohne D, Planta Med., 18, (1970), 1-25] \\
 Uses. The drug is applied to aid the treatment of inflammations of kidneys, ureter and bladder. Also used for polyurea and as astringent for dysentery. [Hager; Wichtl; CRC; BI] \\ Uses. The drug is applied to aid the treatment of inflammations of kidneys, ureter and bladder. Also used for polyurea and as astringent for dysentery. [Hager; Wichtl; CRC; BI] \\
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 Storage. Leaves should be stored in airtight containers, protected from light. Storage. Leaves should be stored in airtight containers, protected from light.
  
 +{{http://upload.wikimedia.org/wikipedia/commons/1/13/Arctostaphylos_uva-ursi_-_K%C3%B6hler%E2%80%93s_Medizinal-Pflanzen-013.jpg}} \\
 +Köhler, F.E., Medizinal Pflanzen, vol.2, t.137 (1890) \\
 +[[http://plantgenera.org/species.php?id_species=80754]]
arctostaphylos_uva-ursi_l._spreng.txt · Zuletzt geändert: 2017/09/09 10:53 von andreas

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