amakuru

Impumuro y'itabi rya elegitoronike ibarwa nk'umwotsi wa kabiri?

Ubushakashatsi kuri nitrosamine ntagushidikanya nigice cyingenzi mubushakashatsi bwinshi.Dukurikije urutonde rw’umuryango w’ubuzima ku isi urutonde rwa kanseri, nitrosamine nizo kanseri yibanze ya kanseri.Umwotsi w'itabi urimo nitrosamine yihariye y'itabi (TSNA), nka NNK, NNN, NAB, NAT… Muri bo, NNK na NNN bagaragaje ko OMS ari ibintu bikomeye bitera kanseri y'ibihaha, ari byo kanseri nyamukuru. y'itabi n'ingaruka z'umwotsi wa kabiri.“Nyirabayazana”.

Umwotsi wa e-itabi urimo nitrosamine yihariye y itabi?Mu rwego rwo gukemura iki kibazo, mu 2014, Dr. Goniewicz yahisemo ibicuruzwa 12 bigurishwa cyane kuri e-itabi ku isoko icyo gihe kugira ngo hamenyekane umwotsi.Ibisubizo byubushakashatsi byerekana ko umwotsi wibicuruzwa byitabi rya elegitoronike (bigomba kuba cyane cyane igisekuru cya gatatu gifungura itabi rya elegitoroniki) ryarimo nitrosamine.

Birakwiye ko tumenya ko ibirimo nitrosamine mu mwotsi wa e-itabi biri hasi cyane ugereranije n’umwotsi w itabi.Amakuru yerekana ko NNN iri mu mwotsi wa e-itabi ari 1/380 gusa muri NNN yumwotsi w itabi, naho NNK ikaba 1/40 gusa cya NNK kirimo umwotsi w itabi.Ati: “Ubu bushakashatsi butubwira ko niba abanywa itabi bahinduye e-itabi, bashobora kugabanya gufata ibintu byangiza itabi.”Dr. Goniewicz yanditse muri urwo rupapuro.

Muri Nyakanga 2020, Ikigo cyo muri Amerika gishinzwe kurwanya no gukumira indwara cyasohoye inyandiko ivuga ko urwego rwa nitrosamine metabolite NNAL mu nkari z’abakoresha e-itabi ruri hasi cyane, bikaba bisa n’urwego rwa NNAL mu nkari z’abatanywa itabi. .Ibi ntibigaragaza gusa ingaruka zikomeye zo kugabanya itabi rya e-itabi hashingiwe ku bushakashatsi bwa Dr. Goniewicz, ariko kandi ryerekana ko ibicuruzwa bikoresha e-itabi muri iki gihe bidafite ikibazo cy’umwotsi w’itabi.

Ubushakashatsi bumaze imyaka 7 butangira gukusanya amakuru y’ibyorezo ku myitwarire y’itabi mu 2013, harimo imikoreshereze, imyifatire, ingeso, n’ingaruka ku buzima.NNAL ni metabolite ikorwa numubiri wumuntu utunganya nitrosamine.Abantu bahumeka nitrosamine bakoresheje ibicuruzwa byitabi cyangwa umwotsi w’itabi, hanyuma bagasohora metabolite NNAL binyuze mu nkari.

Ibyavuye mu bushakashatsi byerekana ko impuzandengo ya NNAL mu nkari z’abanywa itabi ari 285.4 ng / g creatinine, naho impuzandengo ya NNAL mu nkari z’abakoresha e-itabi ni 6.3 ng / g creatinine, ni ukuvuga ibirimo ya NNAL mu nkari z'abakoresha e-itabi ni iy'abanywa itabi 2,2% gusa.