Argyria

Argyria
Other namesArgyrosis
For many years, man had used nose drops containing silver. His skin biopsy showed silver deposits in the dermis, confirming the diagnosis of argyria.
Generalized argyria in a 92-year-old male.
SpecialtyDermatology

Argyria or argyrosis is a condition caused by excessive exposure to chemical compounds of the element silver, or to silver dust.[1] The most dramatic symptom of argyria is that the skin turns blue or blue-gray. It may take the form of generalized argyria or local argyria. Generalized argyria affects large areas over much of the visible surface of the body. Local argyria shows in limited regions of the body, such as patches of skin, parts of the mucous membrane or the conjunctiva.

The terms argyria and argyrosis have long been used interchangeably,[2] with argyria being used more frequently. Argyrosis has been used particularly in referring to argyria of the conjunctiva, but the usage has never been consistent and cannot be relied on except where it has been explicitly specified.[3] The term is from the Ancient Greek: ἄργυρος (argyros, 'silver').

Pathophysiology

In humans and other animals, chronic intake of silver products commonly leads to gradual accumulation of silver compounds in various parts of the body.[4] As in analog photography (where silver is used for its sensitivity to light), exposure of pale or colorless silver compounds to sunlight decomposes them to silver metal or silver sulfides. Commonly these products deposit as microscopic particles in the skin, in effect a dark pigment. This condition is known as argyria or argyrosis.

Chronic intake also may lead to silver pigments depositing in other organs exposed to light, particularly the eyes.[5] In the conjunctiva this is not generally harmful, but it also may affect the lens, leading to serious effects.

Localized argyria often results from topical use of substances containing silver, such as some kinds of eye drops. Generalized argyria results from chronically swallowing or inhaling silver compounds, either for home medicinal purposes, or as a result of working with silver or silver compounds.[6]

While silver is potentially toxic to humans at high doses, the risk of serious harm from low doses, given over a short term, is small. Silver is used in some medical appliances because of its anti-microbial nature, which stems from the oligodynamic effect. Chronic ingestion or inhalation of silver preparations (especially colloidal silver) can lead to argyria in the skin and other organs. This is not life-threatening, but is considered by most to be cosmetically undesirable.[4][5][7][8]

The reference dose, published by the United States Environmental Protection Agency in 1991, which represents the estimated daily exposure that is unlikely to incur an appreciable risk of deleterious effects during a lifetime, is 5 μg/(kg·d).[4]

Argyria worsens and builds up as exposure to silver continues, and does not resolve once exposure stops because the silver atoms cannot be removed from the skin and other tissues.

History

Since at least the mid-19th century, doctors have known that silver or silver compounds can cause some areas of the skin and other body tissues to turn grey or blue-gray.[9][10] Argyria occurs in people who ingest or inhale silver in large quantities over a long period (several months to many years). People who work in factories that manufacture silver products can also breathe in silver or its compounds. In the past, some of these workers have become argyric. However, the level of silver in the air and the length of exposure that caused argyria in these workers is not known. Historically, colloidal silver, a liquid suspension of microscopic silver particles, was also used as an internal medication to treat a variety of diseases. In the 1940s, they were overtaken by the use of pharmaceutical antibiotics, such as penicillin.

Society and culture

Colloidal silver is illegally marketed as a medicine, but it is not effective[clarification needed] and may interfere with the functioning of some medications, such as antibiotics and thyroxine.[11]

A prominent case involving the ingestion of colloidal silver was that of American Stan Jones, a Libertarian candidate for the United States Senate in 2002 and 2006.[12][13] The peculiar coloration of his skin was featured prominently in media coverage of his unsuccessful campaign, though his supporters contended that the best-known photo was "doctored".[14] Jones promised that he was not using his silvery complexion as a gimmick. His purposeful consumption of colloidal silver was a self-prescribed measure undertaken in response to fears that the Y2K problem would make antibiotics unavailable, an event that did not occur.[13][15] He is reported to have said that given the chance to go back, he would do it again.[13] He maintains that his good health, excepting the unusual skin tone, is the result of his use of colloidal silver.[15]

In 2007, press reports described Paul Karason, an American man whose skin gradually turned blue after he took a homemade silver chloride colloid and used a silver salve on his face in an attempt to treat problems with his sinuses, dermatitis, acid reflux and other issues.[16][17] At the time of the reports, Karason maintained his belief in silver's effectiveness and continued to take it, albeit in smaller doses. He died in 2013 of a heart attack; "a cause of death was not immediately known", but according to Jo Anna Karason, his estranged wife, "Paul Karason had suffered heart problems for years. He was a heavy smoker, despite undergoing triple bypass surgery about five years ago".[18][19]

Rosemary Jacobs is a prominent activist against alternative medicine. As a child, Jacobs was treated for allergies with nose drops that contained colloidal silver, and developed argyria as a result.[20] Jacobs came to international attention after Paul Karason was on The Today Show in 2008.[21][22] From 2010 to 2013, Jacobs posted about topics in health fraud, particularly naturopathy, on her blog.[23]

Possible implications

Although research is still not definitive, the literature has suggested that argyria can cause a decrement in kidney function. Additionally, a lack of night vision may be present.[24]

See also

  • Amalgam tattoo
  • Bismuthia – Medical condition
  • Carotenodermia – Skin discoloration caused by carotenoids
  • Chrysiasis – dermatological condition induced by the parenteral administration of gold salts
  • Methemoglobinemia – Condition of elevated methemoglobin in the blood, another condition known for causing blue skin coloration

References

  1. ^ James, William D.; Berger, Timothy G.; Elston, Dirk M.; Odom, Richard B. (2006). Andrews' diseases of the skin: clinical dermatology. Saunders Elsevier. p. 858. ISBN 0-7216-2921-0. OCLC 62736861.
  2. ^ Guttmann, Paul. tr. by A. Napier. A handbook of physical diagnosis comprising the throat, thorax and abdomen. 1879. May be downloaded from https://archive.org/details/ahandbookphysic02guttgoog
  3. ^ Fox, Lawrance Webster. A practical treatise on ophthalmology. Pub. D. Appleton and company NY. 1920. May be downloaded from https://archive.org/details/apracticaltreat00foxgoog
  4. ^ a b c Fung MC, Bowen DL (1996). "Silver products for medical indications: risk-benefit assessment". Journal of Toxicology. Clinical Toxicology. 34 (1): 119–26. doi:10.3109/15563659609020246. PMID 8632503.
  5. ^ a b Lansdown AB (2006). "Silver in health care: antimicrobial effects and safety in use". Biofunctional Textiles and the Skin. Current Problems in Dermatology. Vol. 33. pp. 17–34. doi:10.1159/000093928. ISBN 3-8055-8121-1. PMID 16766878.
  6. ^ Brandt D, Park B, Hoang M, Jacobe HT (August 2005). "Argyria secondary to ingestion of homemade silver solution". Journal of the American Academy of Dermatology. 53 (2 Suppl 1): S105–7. doi:10.1016/j.jaad.2004.09.026. PMID 16021155.
  7. ^ "ToxFAQsTM for Silver" (PDF). July 1999.
  8. ^ "Public Health Statement: Silver" (PDF). ATSDR.
  9. ^ London Medical Gazette: Or, Journal of Practical Medicine. 1843. pp. 791–. Retrieved 13 July 2013.
  10. ^ The Cincinnati Lancet and Observer. E.B. Stevens. 1859. pp. 141–. Retrieved 13 July 2013.
  11. ^ "Colloidal Silver". NCCIH.
  12. ^ Blaine Harden (November 12, 2006). "A True Blue Libertarian". The Washington Post. Retrieved August 10, 2021.
  13. ^ a b c All Things Considered (July 17, 2010). "Fun And Intrigue With The Periodic Table". National Public Radio. Retrieved August 10, 2021.
  14. ^ Sullivan, Robert (2002-11-03). "A Case of the Blues". The New Yorker. ISSN 0028-792X. Retrieved 2024-01-07.
  15. ^ a b Kotynski, Tom (30 September 2002). "Colloidal Silver News - Senate candidate sports a 'healthy' shade of blue". Colloidal Silver News, Generators, Facts and More. Retrieved 13 December 2021.
  16. ^ Joseph Angier (August 20, 2008). "Feeling Blue Over Skin Color". ABC News. Retrieved December 13, 2021.
  17. ^ "Why This Man Turned Blue". Today. NBC News. 7 January 2008. Archived from the original on August 2, 2015. Retrieved 19 November 2015.
  18. ^ "Internet Sensation 'Papa Smurf' Dies, Other Blue People Live On". ABC News. 25 September 2013. Retrieved 26 October 2017.
  19. ^ "Real-life 'Blue Man' dies after heart attack, stroke". Today. 24 September 2013. Retrieved 30 January 2021.
  20. ^ Jacobs, Rosemary (1998). "My Story". Rosemary's Story. Retrieved 19 November 2015.
  21. ^ "Woman who turned silver warns of dangers of internet medicines". The Telegraph. 5 September 2008. Retrieved 19 November 2015.
  22. ^ Hit Blames on Colloidal Silver (5 September 2008). "Colloidal Silver: FAQ". WebMD. Retrieved 19 November 2015.
  23. ^ Jacobs, Rosemary. "Rosemary's Medical Blog". Retrieved 19 November 2015.
  24. ^ Rosenman KD, Moss A, Kon S (June 1979). "Argyria: clinical implications of exposure to silver nitrate and silver oxide". Journal of Occupational and Environmental Medicine. 21 (6): 430–435. PMID 469606.

Read other articles:

Опис файлу Опис Постер фільму Вчорашні пісні, сьогоднішні пісні, завтрашні пісні Джерело http://www.filmtv.it/film/1266/canzoni-di-ieri-canzoni-di-oggi-canzoni-di-domani/ Час створення 1962 Автор зображення невідомо Ліцензія див. нижче Ліцензування Це зображення є рекламним плакатом фільму, спортивного або �...

Esta página ou seção foi marcada para revisão devido a incoerências ou dados de confiabilidade duvidosa. Se tem algum conhecimento sobre o tema, por favor, verifique e melhore a coerência e o rigor deste artigo.Considere colocar uma explicação mais detalhada na discussão. O Forte de São Pedro localizava-se no lugar da Ribeira, na freguesia da Praia do Almoxarife, concelho da Horta, na ilha do Faial, nos Açores. Em posição dominante sobre o seu trecho do litoral, constituiu-se em ...

This article is about the 1968 Italian film. For the 1968 animated short, see Escalation (animated short). 1968 Italian filmEscalationDirected byRoberto FaenzaWritten byRoberto FaenzaCinematographyLuigi KuveillerEdited byRuggero MastroianniMusic byEnnio MorriconeRelease date1968Running time89 minutesCountryItalyLanguageItalian Escalation is a 1968 Italian film written and directed by Roberto Faenza and starring Claudine Auger and Gabriele Ferzetti.[1] Cast Lino Capolicchio  : Luc...

Ruang Dewan Penasihat di Parlemen Jepang (Diet) Dewan Penasihat Jepang atau Sangi-in (参議院code: ja is deprecated ) adalah nama majelis tinggi dalam Parlemen Jepang. Berdasarkan Konstitusi Jepang, Parlemen Jepang adalah badan legislatif sistem dua kamar yang dibentuk dari Dewan Perwakilan Rakyat dan Dewan Penasihat. Sejarah Gedung Dewan Penasihat Jepang (tampak dari luar) Konstitusi Meiji tahun 1889 menetapkan Parlemen Kekaisaran (Teikoku Gikai) sebagai badan legislatif memiliki dua kamar...

1956 Crime Drama film The Houston StoryTheatrical release posterDirected byWilliam CastleScreenplay byJames B. GordonStory byJames B. GordonProduced bySam KatzmanStarringGene BarryBarbara HaleEdward ArnoldCinematographyHenry FreulichEdited byEdwin H. BryantColor processBlack and whiteProductioncompanyClover ProductionsDistributed byColumbia PicturesRelease date February 1956 (1956-02) Running time81 minutesCountryUnited StatesLanguageEnglish The Houston Story is a 1956 American crim...

هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (أكتوبر 2018) الهامة قرية الاسم الرسمي الهامة تقسيم إداري  البلد  سوريا  محافظة محافظة الرقة  منطقة منطقة مركز الرقة  ناحية ناحية الكرامة عدد السكان (2004)  ا...

Malagasy Air ForceTafika Anabakabaka MalagasyArmée de l'air malgacheActive1960–presentCountry MadagascarTypeAir forcePart ofMadagascar People's Armed ForcesGarrison/HQAntananarivoMilitary unit The Malagasy Air Force (French: Armée de l'air malgache) is the aerial warfare branch of the Madagascar People's Armed Forces. History The Malagasy Air Force was founded in 1960 with mainly former French aircraft such as Douglas DC-3s, Max Holste MH.1521 Broussards and Dassault MD 312s. ...

Rate at which sound energy is reflected or transmitted per unit time This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Sound power – news · newspapers · books · scholar · JSTOR (October 2008) (Learn how and when to remove this template message) Sound measurementsCharacteristicSymbols Sound pressure p...

Lambang Bosnia dan Herzegovina Lambang Bosnia dan Herzegovina diadopsi pada yahun 1998, menggantikan desain yang digunakan tahun 1992 ketika Bosnia dan Herzegovina memperoleh kemerdekaannya. Lambang ini menyerupai bendera nasional. Bentuk segitiga menyimbolkan tiga etnis utama dan juga bentuk negara. Warna biru melambangkan sungai, langit, dan danau. Bintang putih melambangkan Eropa, di mana bintang di awal dan akhir deret tidak digambarkan utuh. Deret ini sengaja dibuat agar memberi kesan ju...

Map of the Peloponnese during the Middle Ages. The Melingoi or Milingoi (Greek: Μηλιγγοί) were a Slavic tribe that settled in the Peloponnese in southern Greece during the Middle Ages. In the early decades of the 7th century, Slavic tribes (Sclaveni) settled throughout the Balkans following the collapse of the Byzantine Empire's defense of the Danube frontier with some groups reaching as far south as the Peloponnese.[1] The Sclaveni often settled in small groups (i.e., familie...

2020 Malayalam romantic comedy film Maniyarayile AshokanPosterDirected byShamzu ZaybaScreenplay byVineeth KrishnanStory byMagesh BojiProduced byDulquer SalmaanJacob GregoryStarringJacob GregoryAnupama ParameswaranCinematographySajad KakkuEdited byAppu N. BhattathiriMusic bySreehari K. NairProductioncompanyWayfarer FilmsDistributed byNetflixRelease date 31 August 2020 (2020-08-31) CountryIndiaLanguageMalayalam Maniyarayile Ashokan is a 2020 Indian Malayalam-language romantic com...

Municipality in Flemish Community, BelgiumHerneMunicipality FlagCoat of armsLocation of Herne HerneLocation in Belgium Location of Herne in Flemish Brabant Coordinates: 50°43′N 04°02′E / 50.717°N 4.033°E / 50.717; 4.033Country BelgiumCommunityFlemish CommunityRegionFlemish RegionProvinceFlemish BrabantArrondissementHalle-VilvoordeGovernment • MayorKris Poelaert (CD&V) • Governing party/iesCD&VArea • Total44....

Overview of the procedure of elections in the Indian state of Uttar Pradesh Uttar Pradesh Election to legislative assembly constituencies of Uttar Pradesh is held every five years and conducted by Election commission of India whereas the election to local bodies of Uttar pradesh is conducted by the Election Commission of Uttar pradesh.[1] Parliamentary constituencies and Legislative assembly constituencies are also called Lok sabha seats and Vidhan sabha seats respectively. There are ...

Ular Dharmawangsa Ular Dharmawangsa (pelangi), Xenopeltis unicolordari Kampus IPB Darmaga, Bogor Klasifikasi ilmiah Kerajaan: Animalia Filum: Chordata Kelas: Reptilia Ordo: Squamata Subordo: Serpentes Superfamili: Henophidia Famili: Xenopeltidae Genus: Xenopeltis Spesies: X. unicolor Nama binomial Xenopeltis unicolorReinwardt, 1827[1] Sinonim Xenopeltis unicolor Reinwardt in Boie 1827: 564 Xenopeltis concolor Reinwardt in Boie 1827: 564 Xenopeltis leucocephala Reinwardt in Boie 1...

  关于极北之地“Thule”,请见「图勒」。 杰拉杜斯·麦卡托1595年制作的地图中的极北之地 许珀耳玻瑞亚(古希腊语:Ὑπερϐόρεοι,英文:Hyperborea,意译为极北之地)是希腊神话中的已知世界极北方的国度。 古代传说 在传统的希腊神话中,极北族人是居住在希腊以北极远处的传说民族,大约在乌拉尔山附近。他们的国度被称作许珀耳玻瑞亚,意为“在北风(玻�...

Україна Ця стаття є частиною серії статей продержавний лад і устрійУкраїни Правова система Конституція Законодавство Права людини Глава держави Президент Володимир Зеленський Офіс Президента Керівник ОП Андрій Єрмак РНБОУ Секретар РНБОУ Олександр Литвиненко Державн...

NjuportNewport Osnovni podaci Država  Sjedinjene Američke Države Savezna država  Arkanzas Okrug Džekson Osnovan 1870. Stanovništvo Stanovništvo (2010) 7.879 Gustina stanovništva 22,2 st./km² Geografija Koordinate 35°37′28″N 91°13′54″W / 35.624341°N 91.231789°W / 35.624341; -91.231789 Vremenska zona UTC-6, leti UTC-5 Nadmorska visina 68 m Površina 35,5 km² Kopnena površina 34,8 km² Vodena površina 0,7 km² NjuportNjuport (Sjedinjenih...

Nova Santa Rosa(Jóia d'Oeste) Beliggenheten i delstaten Paraná Land BrasilDelstatParanáInnbyggernavnNovasantarosenseJubileum29. aprilGrunnlagt29. april 1976TidssoneUTC-3Retningsnummer45Areal204,67 km²Befolkning8 322[1] (2022) Bef.tetthet40,66 innb./km²Høyde o.h.326 meter KlimaFuktig subtropisk klimaNova Santa Rosa24°27′57″S 53°57′10″VNova Santa Rosa på Commons Nova Santa Rosa er en kommune i delstaten Paraná i sørregionen av Brasil.[2] Referanser ^...

Cette page est une très courte ébauche oubliée. À l'instar du célèbre « Une pomme est un fruit » qui a marqué l'histoire de Wikipédia, n'hésitez pas à la développer (comment ?) Vous pouvez également enrichir les pages proposées dans la rubrique « Pommes à croquer » du bistro du jour. Cet article est une ébauche concernant une galaxie ou un groupe, un amas, un nuage ou un superamas de galaxies. Vous pouvez partager vos connaissances en l’améliora...

Season of television series Pretty Little LiarsSeason 7Season 7 DVD CoverStarring Troian Bellisario Ashley Benson Tyler Blackburn Lucy Hale Ian Harding Laura Leighton Shay Mitchell Andrea Parker Janel Parrish Sasha Pieterse No. of episodes20ReleaseOriginal networkFreeformOriginal releaseJune 21, 2016 (2016-06-21) –June 27, 2017 (2017-06-27)Season chronology← PreviousSeason 6List of episodes The seventh and final season of the American mystery drama television series P...