Modifications

Argent colloïdal (voir la source)

Version du 5 août 2018 à 15:36

299 octets ajoutés , 5 août 2018 à 15:36

aucun résumé des modifications

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* Par un contact professionnel avec l'argent dans le développement de photos <ref>Naqvi AH, Shields JW, Abraham JL. Nasal argyria (deposition of silver-selenium) in the photographic film industry: histopathology and microanalysis. Am J Otolaryngol. 2007 Nov-Dec;28(6):430-2</ref>

* Aiguilles d'[[acupuncture]] en argent <ref>Rackoff EM, Benbenisty KM, Maize JC, Maize JC Jr. Localized cutaneous argyria from an acupuncture needle clinically concerning for metastatic melanoma. Cutis. 2007 Nov;80(5):423-6.</ref> <ref>Alés-Fernández M, Ríos-Martín JJ, Camacho-Martínez FM. ''Localized argyria secondary to acupuncture mimicking blue nevus'', J Drugs Dermatol. 2010 Aug;9(8):1019-20</ref> <ref>Takeishi E, Hirose R, Hamasaki Y, Katayama I. ''Localized argyria 20-years after embedding of acupuncture needles.'', Eur J Dermatol. 2002 Nov-Dec;12(6):609-11</ref> <ref>Tanita Y, Kato T, Hanada K, Tagami H., ''Blue macules of localized argyria caused by implanted acupuncture needles. Electron microscopy and roentgenographic microanalysis of deposited metal.'', Arch Dermatol. 1985 Dec;121(12):1550-2.</ref>

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~~== Critiques ==~~

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~~Article sur le site acupuncture]]Quackwatch en français ''L'argent colloïdal: risque sans bénéfice'' de Stephen Barrett <ref>https://www.sceptiques.qc.ca/quackwatch/argcoll.php </ref>~~

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Dans l'article ''Lyme Disease: Questionable Diagnosis and Treatment'' de Edward McSweegan, un paragraphe est consacré à l'argent colloîdal:<br>''Many colloidal silver and silver salt preparations have been touted as cures for AIDS, chronic fatigue, herpes, TB, syphilis, lupus, malaria, plague, acne, impetigo, and many other diseases. Lyme disease is just the latest target. A 1996 Federal Register notice stated the "FDA is not aware of any substantial scientific evidence that supports the use of . . . colloidal silver ingredients or silver salts for these disease conditions." The same notice stated that "human consumption of silver may result in argyria—a permanent ashen-gray or blue discoloration of the skin, conjunctiva, and internal organs". Despite these warnings, some websites devoted to Lyme disease or colloidal silver products display misleading reports about laboratory experiments in which colloidal silver killed spirochetes. One such report is a letter from Dr. Burgdorfer, the discoverer of the Lyme spirochete. The letter merely reports on a pilot study using colloidal silver to kill spirochetes in a test tube and states that additional laboratory and human studies are underway. Many silver and Lyme advocates have used the letter to suggest that colloidal silver has been proven effective against Lyme disease. However, no study has shown that colloidal silver is safe or effective for treating people with Lyme disease (or anything else). <ref>http://www.quackwatch.org/01QuackeryRelatedTopics/lyme.html</ref>

L'argyrie peut aussi causer une décoloration précoce des ongles, habituellement les lunules. Dans de rares cas, les cheveux sont également affectés. Dans certains cas, les patients sont considérés comme "cyanotiques" (trop peu d'oxygène dans le sang), ce qui peut conduire à un mauvais diagnostic. La maladie peut aussi être confondue avec la maladie d'Addison.

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Selon le §11 de l'ordonnance allemande sur l'eau potable, la concentration maximale admissible d'argent après traitement de l'eau est de 0,080 mg/l. La limite de l'OMS est de 0,1 mg/l. Ceci est particulièrement important lors de l'utilisation de filtres à eau potable, car le lavage des composés d'argent dans l'eau potable traitée est intentionnel afin d'obtenir un effet de conservation à plus long terme. Il n'y a pas de valeur limite pour l'utilisation comme colorant alimentaire (E 174), par exemple pour la décoration de chocolats.

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== Liens externes ==

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* https://www.sceptiques.qc.ca/quackwatch/argcoll.php ''L'argent colloïdal: risque sans bénéfice'' de Stephen Barrett (français)

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* https://www.quackwatch.org/01QuackeryRelatedTopics/PhonyAds/silverad.html Stephen Barrett: Colloidal Silver: Risk Without Benefit.quackwatch.org, 17. August 2005

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* http://www.quackwatch.org/01QuackeryRelatedTopics/lyme.html Dans l'article ''Lyme Disease: Questionable Diagnosis and Treatment'' de Edward McSweegan, un paragraphe est consacré à l'argent colloîdal:<br>''Many colloidal silver and silver salt preparations have been touted as cures for AIDS, chronic fatigue, herpes, TB, syphilis, lupus, malaria, plague, acne, impetigo, and many other diseases. Lyme disease is just the latest target. A 1996 Federal Register notice stated the "FDA is not aware of any substantial scientific evidence that supports the use of . . . colloidal silver ingredients or silver salts for these disease conditions." The same notice stated that "human consumption of silver may result in argyria—a permanent ashen-gray or blue discoloration of the skin, conjunctiva, and internal organs". Despite these warnings, some websites devoted to Lyme disease or colloidal silver products display misleading reports about laboratory experiments in which colloidal silver killed spirochetes. One such report is a letter from Dr. Burgdorfer, the discoverer of the Lyme spirochete. The letter merely reports on a pilot study using colloidal silver to kill spirochetes in a test tube and states that additional laboratory and human studies are underway. Many silver and Lyme advocates have used the letter to suggest that colloidal silver has been proven effective against Lyme disease. However, no study has shown that colloidal silver is safe or effective for treating people with Lyme disease (or anything else).

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* Therapeutic Goods Administration (TGA): Colloidal silver & related products 26 March 2004

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* National Center for Complementary and Alternative Medicine (NCCAM): Colloidal Silver Products Updated September 2014

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== Références ==

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