Ucwaningo luhlobanisa ikhemikhali nobungozi obungenzeka bokuphuphunyelwa yisisu

I-Associated Press

ISonto, Oct. 13, 2013 | 9:31 p.m.

Ucwaningo olusha luphakamisa ukuthi amazinga aphezulu e-BPA, ikhemikhali ekuthini okuningi okupulasitiki nasezindongeni zangaphakathi zokudla okusemathinini, angakhuphula ingozi yokuphuphuma kwesisu kwabesifazane abavame ukuba nale nkinga noma abanezinkinga zokukhulelwa.

Lo msebenzi awukabi seduze ngokwanele ukuveza ubufakazi besixhumanisi, kodwa wengeza ku-"kungenzeka ngokwemvelo kwamakhemikhali" ukuthi i-BPA ingase ithinte ukuzala nezinye izingxenye zempilo, kusho uDkt. Linda Giudice, usokhemisi waseCalifornia ongumengameli we-American Society for Reproductive Medicine. Lolu cwaningo beluzokwethulwa ngoMsombuluko engqungqutheleni yaminyaka yonke yaleli qembu e-Boston. Ngonyaka odlule, i-ASRM kanye neqembu lama-obstetrician bacela ukunakwa okukhulu kumakhemikhali asemazingeni emvelo kanye nezingcuphe zawo ezingaba khona kwabesifazane abakhulelwe.

I-BPA, okufushaniswa i-bisphenol-A, namanye amakhemikhali athile asemazingeni emvelo angaba nemiphumela ebuthakathaka, efana namahomoni. Izivivinyo zikhombisa i-BPA emchameni cishe wawo wonke umuntu, nakuba leli khemikhali selikhishiwe emabhodleleni ezingane nakumikhumbi eminingi esetshenziswayo yokuphuza eminyakeni yamuva. I-Food and Drug Administration kahulumeni ithi i-BPA iphephile ngendlela esetshenziswa ngayo manje kwezinye iziqukathi zokudla.

Iningi lokuphuphuma kwesisu lidalwa izinkinga zegciwane noma zamakhromosomu, kanti ucwaningo olwenzeka emvundla lwaphakamisa ukuthi i-BPA ingase ithinte leyo ngozi, kusho uDkt. Ruth Lathi, uchwepheshe we-reproductive endocrinology wase-Stanford University.

Ngosizo lomnikelo kahulumeni, yena nabanye abacwaningi bafundisisa abesifazane abangu-115 abasanda kukhulelwa ababenomlando wokungabi nenzalo noma ukuphuphuma kwesisu; abangu-68 bagcina bephuphume isisu kanti abangu-47 bazala izingane ezaziphila.

Abacwaningi bahlaziye amasampula egazi athathwe ngesikhathi kutholakala ukuthi laba besifazane bakhulelwe futhi babahlukanisa baba amaqembu amane ngokuya ngamazinga e-BPA. Abesifazane ababeqembu eliphezulu ngengxenye yesine babe nengcuphe yokuphuphuma kwesisu ephezulu ngo-80 ekhulwini uma kuqhathaniswa nalabo ababeqenjini eliphansi, nakuba babe besebangeni elifanayo ngeminyaka nakwezinye izici.

Nokho, ngenxa yokuthi lolu cwaningo luncane kakhulu, kube nebanga elibanzi lenani lengozi engaba khona _ kusukela kokuncane okunyukile kuye kokungafika izikhathi eziyi-10 kuphezulu.

"Kungenzeka ukuthi abesifazane abanamazinga aphezulu e-BPA baneminye imbangela yengozi" yokuphuphuma kwesisu engase yandiswe i-BPA, kusho uLathi. Uthe lolu cwaningo akufanele ludale ukwethuka, kodwa "lusekude kakhulu nokusikhuthaza ukuthi i-BPA iphephile" kwabesifazane abanjalo.

Ukuze unciphise ukuvezwa ku-BPA, gwema ukupheka noma ukufudumeza ukudla kupulasitiki ngoba ukushisa kusiza leli khemikhali ukuba liphume, esho kanje. Ungashiyi amabhodlela amanzi elangeni, nciphisa ukusebenzisa ukudla okusemathinini futhi ugweme ukuthinta ama-receipt ase-cash register, avame ukugqunywa ngama-resin aqukethe i-BPA. "Akunakwenzeka ukuyigwema ngokuphelele," kusho uLathi.