Ndeupi hukama hwenyama tsvuku nechirwere checolon?

Ndeupi hukama hwenyama tsvuku nechirwere checolon?

Kunyangwe vanachiremba vagara vachiraira kuti nyama tsvuku dzidzivise kudyiwa kwegomarara remudumbu, nyanzvi hadzisati dzave nechivimbo chekuti pane hukama chaihwo pakati pezviviri izvi, sezvo vasinganzwisise zvizere kuti maseru anoshandurwa sei nekudya nyama.

Chidzidzo chitsva chakaburitswa svondo rino mumagazini yeCancer Discovery yakaronga maitiro ekukuvara kweDNA kubva mukudya kwakapfuma munyama tsvuku.

Ongororo iyi yakasimbisa kuti nyama idzi zvechokwadi dzine carcinogenic, zvichigadzira nzira yekukurumidza kuonekwa kwechirwere uye kugadzirwa kwemishonga mitsva yachiri.

Mhedzisiro yechidzidzo ichi hairevi kuti tinofanira kurega zvachose kudya nyama dzvuku, asi kuti kuva nemwero uye kudya kwakakwana kunodiwa, sezvakakurudzirwa neoncologist paDana-Farber Cancer Institute, Marius Giannakis.

Uye tsvakiridzo yesainzi yakamboratidza kubatana pakati pegomarara remukoloni uye nyama tsvuku kuburikidza nemibvunzo nezvemaitiro ekudya evanhu vanayo.

Asi zvidzidzo zverudzi urwu zvinonyanya kutsamira pane data pazviri. Uye muna 2019, timu yevaongorori yakasimudza gakava, sezvo yaibvunza chokwadi chechirevo chekuti kudzikisa kudyiwa kwenyama tsvuku kunobatsira kuderedza kufa kwegomarara.

"Chokwadi pane nzira" inoita kuti "nyama tsvuku ive carcinogen," Marius Giannakis, akatungamira chidzidzo chitsva ichi, akaudza AFP.

Masayendisiti ave nenguva yakareba akawana kuti mamota egomarara anokura sei nekuda kweutsi hwefodya, uye kuti mamwe ultraviolet radiation inopinda muganda inokonzeresa shanduko yemajini inokanganisa kukura nekuparadzana kwemasero.

Aine izvi mupfungwa, Marius Giannakis nevamwe vake vakateedzera DNA ye900 colon cancer varwere vakasarudzwa kubva mudziva revanhu zviuru mazana maviri nemakumi masere vakapinda mumakore ezvidzidzo zvaisanganisira kuvabvunza mibvunzo nezve mararamiro avo.

Kukosha kwenzira yakateverwa neongororo iyi inyaya yekuti vatori vechikamu vanga vasingazive kuti vachabatwa negomarara iri, kusiyana nevaya vanobvunzwa mibvunzo pamusoro pemadyiro avo kune vanenge vaine chirwere ichi.

Ongororo yerabhoritari yakaratidza imwe shanduko yakanga isati yamboonekwa, uye imhaka yerudzi rwekuchinja muDNA inonzi alkylation.

Haasi ese maseru ane shanduko iyi anova negomarara kune zvimwe, sezvo masero akadaro akaonekwawo mumasampuli ane hutano.

Asi zvinoitika kuti kuchinja uku kunonyanya kuenderana nekudyiwa kwenyama tsvuku, ingave yakagadzirwa kana kuti isina kugadziriswa, chirwere chisati chatanga. Kusiyana neizvi, hapana kushamwaridzana kwakaratidzwa nekudyiwa kwehuku nyama, hove kana zvimwe zvinhu zvakaongororwa.

Marius Giannakis akatsanangura kuti "kudya nyama tsvuku kunoburitsa makemikari emakemikari anogona kukonzera alkylation."

Izvi zvinokonzerwa nesimbi, iyo yakawanda munyama tsvuku, kana kubva kune nitrate, iyo inowanzowanikwa munyama yakagadzirwa.

Zvakaonekwa kuti kuchinja uku kunowanikwawo mukuwanda mucolon distal, inova chikamu chekoroni iyo zvidzidzo zvekare zvakaratidza yakanyatsobatanidzwa negomarara remukati rinobva mukudya nyama tsvuku.

Mukuwedzera, chidzidzo chacho chakaratidza kuti pakati pemajini anonyanya kukanganiswa nealkylation ndeaya ayo zvidzidzo zvekare zvakaratidza kuti anonyanya kukonzera kenza yekoloni kana ikashandurwa.

Takatorwa pamwechete, Marius Giannakis akatsanangura, izvi zvakasiyana-siyana zvinogadzira dossier yakasimba, senge basa rekuferefeta.

Chidzidzo ichi chakaratidza kuti varwere vane mazinga epamusoro ealkylating tumors vaive ne47 muzana yengozi yekufa kupfuura vamwe.

Mazinga epamusoro ealkylating aingoonekwa mumamota evarwere vaidya avhareji inopfuura 150 g yenyama tsvuku pazuva.

Mutsvaguri aitarisira kuti kuwanikwa uku kwaizobatsira vanachiremba kuona varwere vane genetically inotapukirwa nealkalosis, zvichivabvumira kuvaraira kuti vadzikise kudya nyama tsvuku.

Kuongorora varwere vanotanga kuunganidza shanduko idzi kunobatsirawo kuti vaone avo vari panjodzi yekubatwa negomarara rakadaro kana kuona chirwere ichi pachiri.

Sezvo chiyero chealkylating chichiita sechiratidzo chekuomarara kwechirwere, chinogona kushandiswawo kuongorora hupenyu hwevarwere.

Kunzwisisa kuti gomarara remudumbu rinokura sei kunovhurawo nzira yekuvandudzwa kwemishonga kumisa kufambira mberi uku mukuyedza kudzivirira chirwere ichi.

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