Uphononongo olupapashwe ngoLwesine ngokuchanekileyo lulinganisa okokuqala iziphumo ezitshabalalisayo zofuzo zecuba. Ukutshaya ipakethe yecuba ngosuku kubangela umyinge we-150 utshintsho ngonyaka kwiiseli zemiphunga, abaphandi baye bamisela. Ngokuhlalutya kunye nokuthelekisa amathumba, bachonge iindlela ezininzi ezonakalisa ngayo i-DNA ukutshaya.
Olu phononongo lupapashwe ngoLwesine kwi Iphephancwadi laseMelika iSayensi ngokuchanekileyo amanyathelo okokuqala imiphumo etshabalalisayo yemfuza yokutshaya, kungekhona nje kwimiphunga, kodwa nakwamanye amalungu angavezwanga ngokuthe ngqo kumsi. Izifundo ze-Epidemiological zibonisa ukuba ukutshaya kunegalelo ubuncinane 17 iintlobo zomhlaza womntu, kodwa ukuza kuthi ga ngoku, besingekaqinisekisi ukuba icuba libangele la mathumba, bonisa aba baphandi ukusuka iBritish Wellcome Trust Sanger Institute et du ILebhu yeSizwe yaseLos Alamos eMelika.
Elona nani likhulu leenguqu zofuzo ezibangelwa licuba zabonwa kwiithishu zemiphunga. Kodwa amanye amalungu omzimba nawo ebenotyikityo lwezi nguqulelo zeDNA, echaza indlela ukutshaya okubangela ngayo iindidi ezahlukeneyo zomhlaza.
7000 IZINTO ZEKHEMICAL KWISIGARETHI
Icuba liqulethe okungakumbi 7000 izinto zekhemikhali ezahlukeneyo, ezingaphezu kwama-70 zazo zaziwa ngokuba carcinogenic, zibonisa aba baphandi, ebonisa ukuntsokotha kwentsebenziswano kunye nomzimba.Kolu hlalutyo lokuqala olubanzi lweDNA enomhlaza edityaniswe necuba, aba baphandi bavavanya ngaphezu koku. 5000 amathumba, kuthelekiswa nomhlaza kubantu abatshayayo abanomhlaza ofanayo kubantu abangazange batshaye.
Abaphandi baphetha ngokuthi icuba libangela inani elikhulu lokuguqulwa kofuzo olongezelelweyo kwiiseli zemiphunga. Kwamanye amalungu, uphononongo lubonisa ukuba ipakethe yecuba ngosuku ikhokelela kumndilili we-97 yeenguqu ezingaphezulu ngonyaka kwi-DNA ye-larynx, 39 emlonyeni, 23 emlonyeni, 18 esinyini kunye 6 esibindini.
Uphando lubonisa ubuncinane iinkqubo ezintlanu ezihlukeneyo apho i-DNA yonakaliswa licuba, eyona ixhaphakileyo ifumaneka kwiintlobo ezininzi zomhlaza. Oku kukukhawuleza kwe-pendulum yeselula ekhokelela ekuguqulweni kweeseli zangaphambi kwexesha, cacisa ezi geneticists.
Ukusetyenziswa kwecuba, oyena nobangela mkhulu wokufa onokuthintelwa, kubangele ukufa kwezigidi ezithandathu ngonyaka kwihlabathi liphela, ngokutsho kweWorld Health Organisation.
imvelaphi : Tdg.ch
