Ucwaningo olusha oluvela eNyuvesi yase-Iowa lubonisa ukuthi abantu abanamazinga aphezulu ekhemikhali ethile emizimbeni yabo, okubonisa ukuchayeka ezibulala-zinambuzane ezisetshenziswa njalo, banamathuba amaningi okufa ngenxa yezifo zenhliziyo.
Imiphumela, eshicilelwe ku-JAMA Internal Medicine, ikhombisa ukuthi abantu abanamazinga aphezulu okuchayeka ku-izibulala-zinambuzane ze-pyrethroidbanamathuba aphansi ngokuphindwe kathathu okufa ngenxa yesifo senhliziyo kunabantu abanamazinga aphansi okuchayeka noma abangenawo nhlobo umuthi wokubulala izibulala-zinambuzane we-pyrethroid.
Imiphumela ivela ekuhlaziyweni kwesampula emele izwe lonke yabantu abadala base-US, hhayi labo abasebenza kwezolimo kuphela, kusho uWei Bao, uprofesa osizayo we-epidemiology e-University of Iowa School of Public Health kanye nombhali walolu cwaningo. Lokhu kusho ukuthi imiphumela inemiphumela empilweni yomphakathi kubantu bonke.
Uphinde waxwayisa ngokuthi ngenxa yokuthi lolu ucwaningo lokubuka, alukwazi ukunquma ukuthi abantu abakusampula bafe ngenxa yokuchayeka ngqo kuma-pyrethroids. Imiphumela iphakamisa ukuthi kungenzeka kakhulu ukuthi kube nokuxhumana, kodwa kudingeka ucwaningo olwengeziwe ukuze kuphindwe imiphumela futhi kutholakale indlela yokusebenza kwezinto eziphilayo, esho.
Ama-pyrethroids aphakathi kwemithi yokubulala izinambuzane esetshenziswa kakhulu ngokwesabelo semakethe, ebalwa iningi lemithi yokubulala izinambuzane yasekhaya ethengiswayo. Atholakala ezinhlotsheni eziningi zemithi yokubulala izinambuzane ethengiswayo futhi asetshenziswa kabanzi ekulawuleni izinambuzane ezindaweni zezolimo, zomphakathi kanye nezindawo zokuhlala. Ama-metabolite e-pyrethroids, njenge-3-phenoxybenzoic acid, angatholakala emchameni wabantu abachayeke kuma-pyrethroids.
UBao kanye nethimba lakhe locwaningo bahlaziye idatha ngamazinga e-3-phenoxybenzoic acid kumasampula omchamo avela kubantu abadala abangu-2,116 abaneminyaka engu-20 nangaphezulu abahlanganyele ku-National Health and Nutrition Examination Survey phakathi kuka-1999 no-2002. Baqoqe idatha yokufa ukuze bathole ukuthi bangaki abantu abadala abakusampula yabo yedatha abashonile ngo-2015 nokuthi kungani.
Bathole ukuthi esikhathini sokulandelela esimaphakathi seminyaka eyi-14, ngo-2015, abantu abanamazinga aphezulu kakhulu e-3-phenoxybenzoic acid kumasampula omchamo babenamathuba aphezulu ngamaphesenti angama-56 okufa nganoma yisiphi isizathu kunabantu abanamazinga aphansi kakhulu okuchayeka. Isifo senhliziyo, okuyimbangela ehamba phambili yokufa, sinamathuba aphindwe kathathu.
Nakuba ucwaningo lukaBao lungazange lunqume ukuthi abantu bavezwe kanjani kuma-pyrethroids, uthe izifundo zangaphambilini zikhombisile ukuthi iningi lokuchayeka kuma-pyrethroid kwenzeka ngokudla, njengoba abantu abadla izithelo nemifino efuthwe ngama-pyrethroids bedla ikhemikhali. Ukusetshenziswa kwama-pyrethroids ukulawula izinambuzane ezingadini nasemakhaya nakho kuyimbangela ebalulekile yokutheleleka. Ama-pyrethroids akhona nasothulini lwasekhaya lapho kusetshenziswa khona lawa ma-pesticides.
UBao waphawula ukuthi isabelo semakethe semithi yokubulala izinambuzane ye-pyrethroid sanda kusukela esikhathini socwaningo sango-1999 kuya ku-2002, okwenza kube nokwenzeka ukuthi ukufa kwenhliziyo okuhlobene nokuchayeka kwayo kwanda. Kodwa-ke, kudingeka ucwaningo olwengeziwe ukuze kuhlolwe ukuthi ngabe lo mbono ulungile yini, kusho uBao.
Iphepha elithi, “Inhlangano yokuchayeka ezibulala-zinambuzane ze-pyrethroid kanye nengozi yokufa okubangelwa yizimbangela kanye nezimbangela ezithile phakathi kwabantu abadala base-US,” labhalwa ngokubambisana nguBuyun Liu noHans-Joachim Lemler be-University of Illinois School of Public Health., kanye noDerek Simonson, umfundi ophothule e-University of Illinois kwezokwelapha ngobuthi kubantu. Lanyatheliswa kumagazini kaDisemba 30, 2019 we-JAMA Internal Medicine.
Isikhathi sokuthunyelwe: Ephreli-08-2024