Riaan Abacwaningi baxwayisa ngokuthi ikhemikhali elingenambala elaziwa nge-trichlorethylene (TCE) – elisetshenziselwe ukomisa izingubo, ukwehlisa izinsimbi kanye nekhofi eline-decaffeinate – lingase lihlotshaniswe nokwanda okumangalisayo Isifo sikaParkinson (PD) amacala.
Basanda kushicilela uchungechunge lwezimo eziyisikhombisa ku-Journal of Parkinson’s disease ezibonisa imiphumela eyingozi yezempilo ye-TCE kanye nenhlangano ye-PD engase ibe khona.
“I-TCE ihlotshaniswa nokwanda kwengozi ye-500% yesifo sika-Parkinson,” umbhali oholayo uDkt. Ray Dorsey, uprofesa we-neurology eNyuvesi yaseRochester. eNew York kanye nombhali we “Ending Parkinson’s Disease,” utshele iFox News Digital.
Ikhemikhali ikhiqiza izici zesifo sezinzwa ezilwaneni zaselabhorethri.
Ikhubaza ukusebenza kwezingxenye ezikhiqiza amandla zamangqamuzana abizwa ngokuthi i-mitochondria, aziwa ngokuthi alimele esifweni sikaParkinson, kwengeza uDorsey.
Izicelo ezisabalele ze-TCE
I-TCE yaqala ukwakhiwa kulebhu ngo-1864 futhi yaqala ukukhiqizwa ngokuhweba ngawo-1920.
Izakhiwo zayo eziyingqayizivele zigqugquzele izinhlelo zokusebenza eziningi, okuhlanganisa ukukhiqiza iziqandisi, ukuhlanza izinto zikagesi kanye nezingxenye zenjini zokwehlisa amafutha.
Ikhemikhali engenambala ingase ihlotshaniswe nokwanda okumangalisayo kwezifo ze-Parkinson, ngokocwaningo olusha, nakuba idatha yayinomkhawulo othile. (Izithombe zikaGetty)
Ngawo-1930, yaqala ukusetshenziselwa izingubo zokuhlanza okomile, njengoba yayihwamuka kalula kodwa ayizange ishwabane izindwangu.
Kodwa ikhemikhali ingcolisa ingxenye eyodwa kwezintathu yamanzi okuphuza e-US, ingcolisa amanzi angaphansi komhlaba okungenani emazweni angama-20 ahlukene emazwenikazi amahlanu, ngokusho kocwaningo.
Iziza eziningi zamasosha nazo zake zangcoliswa ngaphambilini, okuhlanganisa nesizinda seMarine Corps iCamp Lejeune eNorth Carolina.
Lapho, iminyaka engama-35, isigidi Samasosha Asolwandleimindeni yabo kanye nezakhamuzi bachayeka emanzini okuphuza anamazinga e-TCE ayephindwe izikhathi ezingu-280 izindinganiso zokuphepha, ngocwaningo ngalunye.
I-US Environmental Protection Agency (EPA) itshele iFox News Digital ukuthi isanda kukhipha isinqumo sayo sokugcina sobungozi esibuyekeziwe ngoJanuwari, ithole “I-TCE, njengekhemikhali yonkeiveza ingozi engenangqondo yokulimala empilweni yomuntu ngaphansi kwezimo zayo zokusetshenziswa.”
Ibangelwa yini i-PD?
Izimpawu ezivamile nezimpawu ze-PD zenzeka ngemva kwamaseli ezinzwa engxenyeni ethile ye ubuchopho elawula ukunyakaza okutholakala ku-basal ganglia iba buthakathaka futhi/noma iyafa, ngokusho kweNational Institute on Aging.
Kodwa akucaci ukuthi kungani amangqamuzana ezinzwa efa.
U-MICHAEL J. FOX UTHI AKAZIZWILE NGENXA YESIFO SIKA-PARKINSON: ‘AKEKHO UKUZISOA’
Ngenkathi abanye ukuguqulwa kofuzo baziwa ngokubangela i-PD, iningi lamacala alizuzwa njengefa, ngokocwaningo.
Ababhali baphawula ukuthi isibalo sabantu abane-PD sesiphindeke kabili eminyakeni engama-30 edlule, kodwa uDorsey utshele iMedscape Medical News ukuthi “isifo sobuchopho esikhula ngokushesha emhlabeni” singase “sigwemeke kakhulu.”
“I-EPA yabelana ngokukhathazeka ngobungozi be-TCE empilweni yabantu,” le nhlangano itshele iFox News Digital. (iStock)
Ababhali bahlola i-TCE ikakhulukazi ngenxa yemvelo “yokukhona kwayo yonke indawo” emvelweni, kusukela ngeminyaka yawo-1970 lapho “ukukhiqizwa kwe-US konyaka kwedlula amaphawundi ayizigidi ezingama-600 ngonyaka, noma ngaphezulu kwamaphawundi amabili umuntu ngamunye.”
Ababhali balinganisela ukuthi bayizigidi eziyi-10 abantu baseMelika abasebenza namakhemikhali noma ezinye izincibilikisi eziphilayo nsuku zonke, kodwa “izigidi ezengeziwe zihlangana namakhemikhali zingazi umoya wangaphandle, amanzi angaphansi angcolile nokunukubezeka komoya endlini.”
I-EPA ihlonze inqwaba yezingozi zezempilo ze-TCE emzimbeni womuntu, okuhlanganisa ubuthi esibindini, ezinso, ekuzalaneni, ezimisweni zokuzivikela ezifweni nasezinzwani – kanye nengozi engaba khona yomdlavuza ngenxa yokuhogela kanye nokuchayeka kwesikhumba.
I-EPA ihlela ukuthatha isinyathelo
“I-EPA ihlanganyela ngokukhathazeka ngobungozi be-TCE empilweni yabantu,” le nhlangano itshele iFox News Digital.
Abagxeki bathi i-TCE kufanele ivinjelwe e-US
Ngaphambi kokuthi i-EPA ibeke imithethonqubo, i-ejensi kufanele ilandele uMthetho Wokulawulwa Kwezinto Eziwubuthi (TSCA), odinga ukuthi i-ejensi iqale ihlole ubungozi.
I-EPA “manje ihamba ngokushesha ukuze ikhulule umthetho ohlongozwayo wokuthatha isinyathelo sokulawula i-TCE ukuze ingasavezi ingozi engenangqondo empilweni yomuntu.”
“Ukuhlolwa kwengozi kufaka phakathi ukunqunywa kokuthi ikhemikhali enikeziwe ibeka engcupheni ngokungafanele empilweni yomuntu noma endaweni ezungezile,” kuphawula i-EPA.
“Ibe-ke i-EPA idlulela ekulawuleni ubungozi, okuyilapho i-EPA idala khona umthetho wokuvikela abantu kanye/noma imvelo engcupheni engenangqondo ehlonziwe.”
Njengoba i-ejensi ikhiphe isinqumo sayo sokugcina sobungozi, “manje isihamba ngokushesha ukuze ikhiphe umthetho ohlongozwayo wokuthatha isinyathelo sokulawula i-TCE ukuze ingasavezi ingozi engenangqondo empilweni yomuntu.”
Le nhlangano ihlela ukukhipha lo mthetho ohlongozwayo ngoJuni.
Izinyathelo ezimbalwa i-ejensi engazithatha zihlanganisa “imithetho evimbela noma ekhawula ukwakhiwa (okubandakanya ukungenisa), ukucubungula, ukusatshalaliswa ezimakethe, ukusetshenziswa kwezentengiselwano, noma ukulahlwa kwaleli khemikhali, njengoba kufanele,” i-EPA itshele iFox News Digital ku-imeyili.
Indaba yesiguli esisodwa
Ababhali bocwaningo olusha baxoxisane ngeziguli eziyisikhombisa okungenzeka ukuthi i-TCE ibe negalelo – ngokusebenzisa imvelo noma ukuchayeka emsebenzini – ekuthuthukisweni kwe-PD.
Ikesi elilodwa lifakiwe I-NBA basketball umdlali uBrian Grant.
Wayephuza, egeza futhi ebhukuda emanzini angcolile engazi ngemiphumela yawo emibi.
Waqala ukuhlala eCamp Lejeune esemncane eneminyaka emithathu, kanti uyise wayenguMarine ngesikhathi amanzi ayenamazinga aphezulu e-TCE.
Wayephuza, egeza futhi ebhukuda emanzini angcolile engazi ngemiphumela yawo emibi.
Waqala ukuba nezimpawu ebudaleni ngenkathi edlala ne Los Angeles Lakers. Wabona ukuthi wayengasakwazi ukugxuma emlenzeni wakhe wesobunxele ngendlela abengenza ngayo ngaphambili.
![Ababhali bocwaningo olusha baxwayisa ngedatha yamanje kuphela "ngokwezimo ezithile kodwa kuphakamisa imibuzo ekhathazayo mayelana nokuhlobana phakathi kwamakhemikhali [TCE] kanye nesifo."](https://a57.foxnews.com/static.foxnews.com/foxnews.com/content/uploads/2018/09/640/320/parkinsons_hand.jpg?ve=1&tl=1)
Ababhali bocwaningo olusha baxwayisa ngokuthi idatha yamanje “iyizimo kuphela kodwa iphakamisa imibuzo ekhathazayo mayelana nokuxhumana phakathi kwamakhemikhali. [TCE] kanye nesifo.” (iStock)
Izimpawu zaqhubekela phambili ngesizini elandelayo ngokundindizela okungapheli esandleni sakhe sobunxele, kodwa wakwazi ukubamba iqhaza kumdlalo womkhumulajezi wePhoenix Suns – yize kwakuyimizuzu emibili kuphela.
Uma sibheka emuva, ucwaningo lwaphawula lokho cishe waqopha umlando ngalowo nyaka ngokudlala isizini yonke ye-basketball ku-NBA ngaphandle kokwazi ukuthi une-PD ngoba watholakala ukuthi unalesi sifo eminyakeni emibili kamuva.
Imikhawulo yedatha
Ababhali baxwayisa ngokuthi idatha yamanje “iyizimo kuphela kodwa iphakamisa imibuzo ekhathazayo mayelana nokuxhumana phakathi kwamakhemikhali nesifo.”
“Maningi amaqembu ocwaningo okwamanje ahlola usoseshini futhi silindele ukuthi ulwazi oluthe xaxa luzotholakala maduze.”
Izinto ezimbalwa ezimweni zesiguli ezenza kube nzima ukusungula ukuxhumana okuqinile phakathi kwe-TCE ne-PD – okuhlanganisa nokuthi abantu abaningi bebengazi ngokuchayeka kwabo nokuthi ubude besikhathi phakathi kokuchayeka nesifo side. Ngakho-ke ezinye izinguquko zingase zibe nesibopho.
Abanye ochwepheshe ababengeyona ingxenye yocwaningo, nokho, babelana ngokukhathazeka kombiko.
“Ubufakazi obuhlangene obusekela ubudlelwane obuqinile phakathi kokuchayeka kwe-TCE nesifo sika-Parkinson buyaqhubeka nokunqwabelana,” uDkt. Michael S. Okun, umeluleki wezokwelapha ku-Parkinson’s Foundation, etshela iFox News Digital.
CHOFOZA LAPHA UKUZE Ubhalisele IPHEPHA LETHU LEZEMPILO
“Maningi amaqembu ocwaningo okwamanje ahlola inhlangano futhi silindele ukuthi eminye imininingwane izotholakala maduze,” kwengeza u-Okun, ophinde abe ngumqondisi omkhulu weNorman Fixel Institute for Neurological Diseases University of Florida Health. eGainesville, eFlorida.
CHOFOZA LAPHA UKUZE UTHOLA UHLELO LOKUSEBENZA IZINDABA ZEZIMpungushe
“Ukunciphisa ukuchayeka ku-TCE … kungaba namandla okwehlisa umthwalo wethu wesikhathi esizayo wesifo sikaParkinson.”
