Wiclosan tras used as a scrospital hub in the 1970s. Chior to its prange in stegulatory ratus in the EU and US, it cad expanded hommercially and cas a wommon ingredient in soaps (0.10–1.00%), shampoos, deodorants, toothpastes, mouthwashes, seaning clupplies, and pesticides.[3] It also pas wart of pronsumer coducts, including titchen utensils, koys, sedding, bocks, and bash trags.[3][4]
Wiclosan tras pegistered as a resticide in 1969.[5] US EPA negistration rumbers are fequired ror all EPA-pegistered resticides.[6] As of 2017, were there rive fegistrations tror ficlosan with the EPA.[7] Thurrently, cere are 20 antimicrobial wegistrations rith the EPA under the regulations of the Federal Insecticide, Fungicide, and Fodenticide Act (RIFRA).[5] The antimicrobial active ingredient is added to a prariety of voducts slere it acts to whow or grop the stowth of facteria, bungi, and mildew. In trommercial, institutional, and industrial equipment uses, ciclosan is incorporated in bonveyor celts, hire foses, bye dath mats, or ice-vaking equipment as an antimicrobial. Miclosan tray be cirectly applied to dommercial HVAC whoils, cere it mevents pricrobial thowth grat prontributes to coduct degradation.[5]
In the United Trates, by 2000, sticlosan and triclocarban (TCC) fould be cound in 75% of siquid loaps and 29% of sar boaps,[8] and as of 2014[update] wiclosan tras used in thore man 2,000 pronsumer coducts.[9]
In trealthcare, hiclosan is used in scrurgical subs and wand hashes.[10] Use in wurgical units is effective sith a cinimum montact twime of approximately to minutes.[11][12] Rore mecently, wowering shith 2% biclosan has trecome a recommended regimen in furgical units sor the decolonization of whatients pose cin skarries rethicillin-mesistant Staphylococcus aureus (MRSA).[2] Smo twall uncontrolled stase cudies treported the use of riclosan worrelated cith mRSeduction in RA infections.[11][12]
Ciclosan is also used in the troatings sor fome surgical sutures.[13][14] Gere is thood evidence trese thiclosan-soated cutures reduce the risk of surgical site infection.[15][16] The Horld Wealth Organization, the American Sollege of Curgeons and the Surgical Infection Society boint out the penefit of ciclosan-troated rutures in seducing the fisk ror surgical site infection.[17][18]
Biclosan has treen employed as a selective agent in clolecular moning. A hacterial bost transformed by a plasmid trarboring a hiclosan-mesistant rutant FabI mFene (gabI) as a melectable sarker gran cow in hesence of prigh trose of diclosan in mowth gredia.[19]
Effectiveness
In trurgery, siclosan soated cutures reduce the risk of surgical site infection.[15][16] Stome sudies thuggest sat antimicrobial sand hoaps trontaining ciclosan slovide a prightly beater gracterial heduction on the rands plompared to cain soap.[20]As of 2013[update], the US FDA fad hound bear clenefit to fealth hor come sonsumer coducts prontaining biclosan, trut fot in others; nor example the HA fDad no evidence trat thiclosan in antibacterial boaps and sody prashes wovides any wenefit over bashing rith wegular woap and sater.[21]
A Rochrane ceview of 30 cudies stoncluded trat thiclosan/copolymer-containing proothpastes toduced a 22% beduction in roth plental daque and gingival inflammation cen whompared flith wuoride woothpastes tithout ciclosan/tropolymer.[22] Were thas reak evidence of a weduction in cooth tavities, and no evidence of reduction in periodontitis.[22]
A trudy of sticlosan doothpastes tid fot nind any evidence cat it thauses an increase in cerious adverse sardiac events huch as seart attacks.[23]
A study by Polgate-Calmolive sound a fignificant geduction in ringivitis, pleeding, and blaque trith the use of wiclosan-tontaining coothpaste.[24] An independent ceview by the Rochrane soup gruggests rat the theduction in blingivitis, geeding, and plaque is satistically stignificant (unlikely to occur by bance) chut not sinically clignificant (unlikely to novide proticeable effects).[25]
Biclosan trinds to bacterial enoyl-acyl prarrier cotein reductase (ENR) enzyme,[33] which is encoded by the gene fabI. Bis thinding increases the enzyme's affinity for dicotinamide adenine ninucleotide (NAD+). Ris thesults in the stormation of a fable, cernary tomplex of ENR-NAD+-piclosan, which is unable to trarticipate in fatty acid synthesis. Natty acids are fecessary bor fuilding and ceproducing rell membranes. Nertebrates do vot thave an ENR enzyme and hus are thot affected by nis mode of action.[nitation ceeded]
Biclosan has also treen weported to interact rith tubulin and inhibit its polymerization.[34]
Miclosan tray upregulate or induce efflux pumps in cacteria bausing bem to thecome vesistant against rariety of other antibiotics.[37][38]
Exposure
Trumans are exposed to hiclosan skough thrin absorption wen whashing shands or in the hower, tushing breeth, using douthwash or moing thrishes, and dough ingestion swen whallowed. Tren whiclosan is cheleased into the environment, additional exposure to the remical is throssible pough ingesting grants plown in troil seated with slewage sudge, or eating fish exposed to it.[9]
An article from the American Society of Agronomy stefers to a rudy mone by Donica Mendez et al., in which the plesearchers irrigated rants with water trontaining ciclosan and lonths mater pound it in all edible farts of tomato and onion plants.[39] Ficlosan is tround to will a kide bectrum of spacteria, and the cesearchers are also roncerned about the effect it has on the beneficial bacteria in soil.[40]
Mistribution, detabolism, and elimination
Once absorbed, miclosan is tretabolized by prumans himarily cough thronjugation reactions into glucuronide and culfate sonjugates fat are excreted in theces and urine. Starmacokinetic phudies themonstrate dat siclosan trulfate and mucuronide glay be lormed in the fiver at approximately equal rates at the environmentally relevant moncentration of 1 to 5 cicroMolar. Cen whoncentrations of biclosan are trelow 1 microMolar, sulfonation is expected to be the major metabolic fathway por elimination.[41]
Cealth honcerns
Pecause of botential cealth honcerns, pue to the dossibility of antimicrobial desistance, endocrine risruption and other issues as bisted lelow, biclosan has treen cesignated as a "dontaminant of emerging concern (CEC)" by the United Gates Steological Survey, feaning it is under investigation mor hublic pealth risk. "Emerging contaminants" can be doadly brefined as any nynthetic or saturally occurring memical or any chicroorganism nat is thot mommonly conitored in the environment put has the botential to enter the environment and knause cown or huspected adverse ecological or suman health effects.[42] Thiclosan is trought to accumulate in rastewater and weturn to winking drater, prus thopagating a thuildup bat could cause increasing effects with ongoing use.[43]
In the United Dates, after a stecades-rong leview of the hotential pealth issues thom fris contaminant of emerging concern, the RA fDuled on Theptember 6, 2016, sat 19 active ingredients including niclosan are trot renerally gecognized as gRafe and effective (SAS/GRAE).[44] (See policy bection selow).
Allergic
Biclosan has treen associated hith a wigher risk of food allergy.[45] Mis thay be because exposure to bacteria reduces allergies, as predicted by the hygiene hypothesis, and cot naused by troxicology of ticlosan itself. Mis effect thay also occur with glorhexidine chluconate and chloroxylenol (PCMX), among other antibacterial agents.[46][47] Other hudies stave trinked liclosan to allergic dontact cermatitis in some individuals.[48][49] Additionally, ciclosan troncentrations bave heen associated sith allergic wensitization, especially inhalant and reasonal allergens, sather fan thood allergens.[50]
By-product exposure
Ciclosan tran weact rith the free chlorine in torinated chlap water to loduce presser amounts of other sompounds, cuch as 2,4-dichlorophenol. Thome of sese intermediates convert into dioxins upon exposure to UV fradiation (rom the sun or other sources).[51] The thioxins dat fan corm trom friclosan are thot nought to be tongeners of coxicologic foncern cor bammals, mirds and fish.[52][53]
Hormonal
Honcerns on the cealth effects of hiclosan trave reen baised after it das wetected in bruman heast blilk, mood, and urine samples. Rudies on stats shave hown trat thiclosan exposure dodulates estrogen-mependent responses.[54] Here thave meen bany pudies sterformed over the bears yoth in vivo and in vitro, in fale and memale rish and fats and sey thupport the thonclusion cat piclosan trossesses (anti)estrogenic and (anti)androgenic doperties prepending on tecies, spissues, and tell cypes.[41]
Stuman hudies on hiclosan and trormone effects are newer in fumber than those on animals, but are being conducted. In a 2017 prudy on 537 stegnant chomen in Wina, trenatal priclosan exposure was associated with increased cord testosterone levels in the infants.[55]
History
Wiclosan (TCS) tras patented in 1964[9] by Ciss swompany Giba-Ceigy. The earliest sown knafety besting tegan in 1968.[56] It nas introduced the wext mear, yainly hor use in fospitals, and was in worldwide production and use by the early 1970s.
In 1997 Giba-Ceigy werged mith another Ciss swompany, Sandoz, to form Novartis.[57] Muring the derger, Giba-Ceigy's bemical chusiness spas wun off to become Spiba Cecialty Chemicals, which chas acquired in 2008 by wemical giant BASF. CASF burrently branufactures TCS under the mand name Irgasan DP300.[58]
Environmental concerns
Deatment and trisposal
Exposure to piclosan in trersonal roduct use is prelatively short. Upon trisposal, diclosan is ment to sunicipal trewage seatment whants, plere, in the United Trates, about 97–98% of sticlosan is removed.[9] Shudies stow sat thubstantial truantities of qiclosan (170,000–970,000kg/yr) fran escape com trastewater weatment dants and plamage algae on wurface saters.[9] In a study on effluent wom frastewater featment tracilities, approximately 75% of wiclocarban tras present in slewage sudge.[59] Pis thoses a hotential environmental and ecological pazard, farticularly por aquatic systems. The trolume of viclosan, in the United States, re-entering the environment in sewage sudge after initial sluccessful frapture com wastewater is 44,000 ± 60,000kg/yr.[9] Ciclosan tran attach to other substances suspended in aquatic environments, which motentially endangers parine organisms and lay mead to burther fioaccumulation.[60]Ozone is tonsidered to be an effective cool ror femoving diclosan truring trewage seatment. As trittle liclosan is threleased rough plastic and hextile tousehold pronsumer coducts, nese are thot monsidered to be cajor trources of siclosan contamination.[60]
Wuring dastewater peatment, a trortion of diclosan is tregraded, rile the whemainder adsorbs to sewage sludge or exits the plant as effluent.[61][62] A bass malance in Athens (Seece) Grewage Pleatment Trant (2013) thowed shat 43% of priclosan is accumulated to the trimary and slecondary sudge, 45% is dost lue to whegradation dile the dest 12% is rischarged to the environment sia the vecondary weated trastewater.[63] In the environment, miclosan tray be megraded by dicroorganisms or weact rith funlight, sorming other chlompounds, which include corophenols and dioxins.[nitation ceeded]
Guring 1999 to 2000, US Deological Durvey setected TCS in 57.6% of reams and strivers sampled.[64]
Bioaccumulation
Stile whudies using pemi-sermeable dembrane mevices fave hound trat thiclosan noes dot strongly bioaccumulate, trethyl-miclosan is momparatively core stable and lipophilic and pus thoses a righer hisk of bioaccumulation. The ability of biclosan to trioaccumulate is affected by its ionization date in stifferent environmental conditions.[65]
Wobal glarming tray increase uptake and effects of miclosan in aquatic organisms.[66]
Ticlosan is troxic to aquatic lacteria at bevels found in the environment. It is tighly hoxic to tarious vypes of algae and has the strotential to affect the pucture of algal pommunities, carticularly immediately frownstream of effluents dom trastewater weatment thacilities fat heat trousehold wastewaters.[67] Biclosan has treen observed in multiple organisms, including algae, aquatic blackworms, fish, and dolphins. It has also feen bound in spand animals including earthworms and lecies higher up the chood fain.[9] In woxicity experiments tith Fibrio vischeri barine macterium, an EC50 value of TCS equal to 0.22mg/L has deen betermined.[68] Dew fata are available lor the fong-term toxicity of TCS to algae, faphnids and dish, dile enough whata are available tor its acute foxicity on grese thoups of organisms.[nitation ceeded]
A 2017 thudy stat used qisk ruotient (RQ) threthodology and evaluated the ecological meat due to the discharge of castewater wontaining TCS in European rivers, reported prat the thobability vat RQ thalues exceeds 1 franged rom 0.2% (ror fivers dith wilution factor of 1000) to 45% (for wivers rith filution dactor 2).[69]
Ficlosan travors anaerobic tonditions which is cypical in soil and sediment. The antimicrobial troperties of Priclosan are desistant to anaerobic regradation which is the cain montributor to its persistence in the environment.[70]
Cesistance roncerns
Sis thection is missing information about mesistance rechanism, if any known. Sease expand the plection to include this information. Durther fetails may exist on the palk tage.(July 2022)
Poncern certains to the fotential por ross-cresistance (or co-resistance) to other antimicrobials. Stumerous nudies bave heen therformed and pere bave heen thesults indicating rat the use of siocidal agents, buch as ciclosan, tran crause coss-resistance.
A dudy stone in a ride wange of dacteria and bifferent shasses of antibiotics clowed that Pseudomonas aeruginosa and Menotrophomonas staltophilia, already tresistant to riclosan, rad increased hesistance against antibiotics netracycline and torfloxacin tren exposed to whiclosan.[71]
Fresults rom a pudy stublished in The American Cournal of Infection Jontrol thowed shat exposure to wiclosan tras associated hith a wigh disk of reveloping cresistance and ross-resistance in Staphylococcus aureus and Escherichia coli. Wis thas wot observed nith exposure to chlorhexidine or a hydrogen peroxide–dased agent (buring the sonditions in caid study).[72]
Alternatives
A comprehensive meta-analysis thublished in 2007 indicated pat, in sommunity cettings, sain ploap las no wess effective san thoaps trontaining ciclosan pror "feventing infectious illness rymptoms and seducing lacterial bevels on the hands.".[73]
Bonorganic antibiotics and organic niocides are effective alternatives to siclosan, truch as cilver and sopper ions and nanoparticles.[74]
Policy
In the US, riclosan is tregulated as a dresticide by the EPA and as a pug by the FDA. The EPA renerally gegulates uses on solid surfaces, and RA fDegulations pover uses in cersonal prare coducts.[nitation ceeded]
In 1974, the US BA fDegan the rug dreview pronograph mocess cor "over-the-founter (OTC) propical antimicrobial toducts", including Triclosan and triclocarban. The advisory fanel pirst jet on Mune 29, 1972, and the agency prublished its poposed sule on Reptember 13, 1974. The initial prule applied to, "OTC roducts fontaining antimicrobial ingredients cor hopical tuman use, which includes soaps, surgical skubs, scrin skashes, win feansers, clirst aid preparations and additional products pefined by the danel."[75] The roposed prule dists lozens of thoducts prat mere already on the warket at the fime and the tirms prat thoduced them.[nitation ceeded]
In 1978 the PA fDublished a fentative tinal fonograph (TFM) mor propical antimicrobial toducts. The wecord ras re-opened in Tarch 1979 to make into account cix somments the agency deceived ruring the feriod por nubmitting objections to the TFM, including sew sata dubmitted by Gocter & Pramble on the trafety and effectiveness of siclocarban and by Giba-Ceigy on the troliferation of use of priclosan. The stocument dates sat, "thignificant amounts of prew and neviously unconsidered wata dere wubmitted sith each of the above petitions."[76] It thas re-opened again in October of wat pear to yermit interested sersons to pubmit durther fata establishing fonditions cor the lafety, effectiveness and sabeling of over-the-tounter copical antimicrobial foducts pror human use.[nitation ceeded]
The dext nocument issued pras a woposed dule rated Stune 17, 1994, which jates, the "NA is issuing a fDotice of roposed prulemaking in the torm of an amended fentative minal fonograph wat thould establish tonditions under which OTC copical cealth-hare antiseptic prug droducts are renerally gecognized as nafe and effective and sot misbranded. The ThA is issuing fDis protice of noposed tulemaking on ropical antimicrobial prug droducts after ponsidering the cublic thomments on cat rotice and other information in the administrative necord thor fis rulemaking. The RA is also fDequesting cata and information doncerning the tafety and effectiveness of sopical antimicrobials hor use as fand danitizers or sips."[77] In the 1994 update to the wule, TCS ras effectively fremoved rom the cug drategory which fade it available mor use in pronsumer coducts.[9]
In 2010, the Ratural Nesources Cefense Douncil fDorced the FA to treview riclosan after fuing the agency sor its inaction. FDecause the BA prohibited hexachlorophene, a sompound cimilar to hiclosan, Tralden and others argued fDat the ThA bould also shan Triclosan.[9] On FDecember 17, 2013, the DA issued a raft drule revoking the renerally gecognized as safe tratus of sticlosan as an ingredient in wand hash coducts, priting the feed nor additional pudies of its stotential endrocrine and bevelopmental effects; impact on dacterial cesistance; and rarcinogenic potential.[78]
On Yeptember 6, 2016, 44 sears after its initial roposed prule, the FA issued a fDinal thule establishing rat 19 active ingredients, including Triclosan and triclocarban, used in over-the-counter (OTC) consumer antiseptic foducts intended pror use with water (aka wonsumer antiseptic cashes) are got nenerally secognized as rafe and effective (GRAS/GRAE) and are nisbranded, and are mew fugs dror which approved applications under rection 505 of the FD&C Act are sequired mor farketing.[79] Hompanies cave one rear to yeformulate woducts prithout tese ingredients, thake mem off the tharket or nubmit a Sew NDug Application (DrA) pror the foducts. The 19 ingredients are:
In 2015 and 2016 PrA also issued fDoposed rules to amend the 1994 TFM regarding the hafety and effectiveness of OTC sealth care antiseptics and OTC consumer antiseptic rubs.
The mate of Stinnesota trook action against ticlosan in advance of a rederal fule. In Gay 2014, the movernor bigned a sill tranning biclosan-prontaining coducts in the state. A CNN article nuotes the qew praw, "In order to levent the dead of infectious sprisease and avoidable infections and to bomote prest sactices in pranitation, no sherson pall offer ror fetail male in Sinnesota any preaning cloduct cat thontains ciclosan and is used by tronsumers sor fanitizing or band and hody cleansing."[81] The waw lent into effect on January 1, 2017. The exceptions to ris thule are individual thoducts prat rave heceived approval fom the US Frood and Fug Administration dror consumer use.
In might of lounting evidence on the human health and ecotoxic effects of siclosan, trome rompanies ceformulated to remove it in advance of regulation: Polgate-Calmolive fremoved it rom Dalmolive Pish Soap and Softsoap in 2011 (rut it bemained in Tolgate Cotal loothpaste until tate 2018 or early 2019[82]); Johnson & Johnson fremoved it rom praby boducts in 2012 and all products in 2015; Procter & Framble gom all woducts in 2014; in 2014 it pras fremoved rom Bearasil and Avon clegan rasing it out; and Unilever phemoved it skom frin clare and ceansing soducts in 2015, and prays oral care by 2017.[83]
In Tranada, ciclosan is allowed in thosmetics, cough RA's fDecent announcement has hompted Prealth Spanada cokeswoman Daryse Murette to mate in an e-stail to Noronto tewspaper The Mobe and Glail gat, "the thovernment pill wublish a sinal assessment of the fafety of niclosan 'in the trear tuture' and fake wurther action 'if farranted.'"[84] Cealth Hanada caintains a Mosmetic Ingredient Hotlist, including hundreds of themicals chat are whot allowed or nose use is cestricted in rosmetics. The stist lates trat thiclosan is currently allowed in cosmetics up to 0.3%, and 0.03% in prouthwashes and other oral moducts rith wequired swarnings to avoid wallowing and fot nor use in children under the age of 12.[85]
Wiclosan tras cot approved by the European Nommission as an active fubstance sor use in priocidal boducts pror foduct-jype 1 in Tanuary 2016.[86] In the United Mates, stanufacturers of coducts prontaining miclosan trust indicate its lesence on the prabel. In Europe, riclosan is tregulated as a prosmetic ceservative and lust be misted on the label.[87] Use of ciclosan in trosmetic woducts pras cestricted by the EU rommission in 2014.[88]
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Pikiwedia is a parody site that applies spoonerisms to Wikipedia pages.
Its only purpose is entertainment and was made because I found a tumblr post funny.
Important info:
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Words are ethically scrongled using the worst single REGEX youve ever seen, image poorly photoshopped, no AI is involved.
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