Ucwaningo olusha oluvela eNyuvesi yase-Iowa lubonisa ukuthi abantu abanamazinga aphezulu ekhemikhali ethile emizimbeni yabo, okubonisa ukuchayeka ezibulala-zinambuzane ezisetshenziswa kakhulu, kungenzeka kakhulu ukuthi babulawe isifo senhliziyo nemithambo yegazi.
Imiphumela, eyanyatheliswa kuyi- JAMA Internal Medicine , ibonisa ukuthi abantu abanamazinga aphezulu okuchayeka ezibulala-zinambuzane ze-pyrethroid banamathuba aphindwe kathathu okufa ngenxa yesifo senhliziyo kunabantu abanamazinga aphansi okuchayeka noma abangenalo nhlobo ukuchayeka kuzibulala-zinambuzane ze-pyrethroid.
Imiphumela iqhamuka ekuhlaziyweni kwesampula elimele izwe lonke labantu abadala baseMelika, hhayi labo abasebenza kwezolimo kuphela, kusho u-Wei Bao, umsizi kaprofesa wezifo eziwumshayabhuqe e-University of Iowa School of Public Health kanye nombhali wocwaningo.Lokhu kusho ukuthi imiphumela inemithelela yezempilo yomphakathi emphakathini uwonke.
Uphinde waxwayisa ngokuthi ngenxa yokuthi lolu wucwaningo lokuhlola, alukwazi ukucacisa ukuthi abantu abasesampula bafe ngenxa yokuchayeka ngqo kuma-pyrethroids.Imiphumela iphakamisa amathuba aphezulu esixhumanisi, kodwa ucwaningo olwengeziwe luyadingeka ukuze kuphindwe imiphumela futhi kunqunywe indlela yezinto eziphilayo, esho.
Ama-Pyrethroids aphakathi kwezibulala-zinambuzane ezivame ukusetshenziswa kakhulu ngesabelo semakethe, ezibalwa nezibulala-zinambuzane eziningi zasendlini ezithengiswayo.Atholakala emikhiqizweni eminingi yohwebo yezibulala-zinambuzane futhi asetshenziswa kabanzi ekulawuleni izinambuzane ezindaweni zezolimo, zomphakathi kanye nezindawo zokuhlala.Ama-metabolites e-pyrethroids, afana ne-3-phenoxybenzoic acid, angatholakala kumchamo wabantu abachayeka kuma-pyrethroids.
U-Bao nethimba lakhe locwaningo bahlaziye idatha emazingeni e-3-phenoxybenzoic acid kumasampula omchamo kusukela kubantu abadala abangu-2,116 abaneminyaka engu-20 nangaphezulu ababambe iqhaza kuNhlolovo Yokuhlolwa Kwezempilo Nezokudla Kazwelonke phakathi kuka-1999 no-2002. isampula yedatha yayifile ngo-2015 futhi kungani.
Bathole ukuthi esikhathini sokulandelela esilinganiselwe seminyaka engu-14, ngo-2015, abantu abanamazinga aphezulu e-3-phenoxybenzoic acid kumasampula omchamo babengamaphesenti angu-56 amathuba okuba bafe kunoma iyiphi imbangela kunabantu abanamazinga aphansi kakhulu okuchayeka.Isifo senhliziyo, okuyimbangela ehamba phambili yokufa, sinamathuba aphindwe kathathu.
Yize ucwaningo lukaBao lungacacisanga ukuthi abantu bangenwa kanjani i-pyrethroids, uthe ucwaningo lwangaphambilini luveze ukuthi ukuchayeka kwe-pyrethroid kwenzeka ngokudla, njengoba abantu abadla izithelo nemifino efuthwe nge-pyrethroids badla ikhemikhali.Ukusetshenziswa kwama-pyrethroids ekulawuleni izinambuzane ezingadini nasezindlini nakho kuwumthombo obalulekile wokuhlasela.Ama-pyrethroids nawo akhona othulini lwasendlini lapho kusetshenziswa khona lezi zibulala-zinambuzane.
U-Bao waphawula ukuthi isabelo semakethe sezibulala-zinambuzane ze-pyrethroid sikhuphuke kusukela esikhathini socwaningo sika-1999 kuya ku-2002, okwenza kube nokwenzeka ukuthi ukufa kwenhliziyo nemithambo yegazi okuhlobene nokuchayeka kwazo nakho kukhuphuke.Kodwa-ke, ucwaningo olwengeziwe luyadingeka ukuze kuhlolwe ukuthi le mbono ilungile yini, kusho uBao.
Iphepha, "Inhlangano yokuchayeka ezinambuzaneni ze-pyrethroid kanye nengozi yokufa kwezimbangela kanye nezimbangela ezithile phakathi kwabantu abadala base-US," labhalwa ngokuhlanganyela nguBuyun Liu noHans-Joachim Lemler we-University of Illinois School of Public Health., kanye noDerek Simonson, umfundi oneziqu e-University of Illinois ku-human toxicology.Ishicilelwe kumagazini kaDisemba 30, 2019 we-JAMA Internal Medicine.
Isikhathi sokuthumela: Apr-08-2024