Chii chinonzi kusagadzikana kwemazwi?
Mazuva ano gynecology inotsanangura mavambo ekunyengera kwepabonde semagetsi asina kufanana nevanoita zvepabonde. Muchiitiko ichi, nyanzvi dzinokurudzira kunyatsorongororwa kwevanhu vaviri kuti vaone chero kukanganisa kwakakomba. Zvisinei, nekuda kwemamiriro akawanda evanhu uye zvinokonzera nzvimbo, havasi vaviri vari vaviri vanobvumirana nekuongorora kwakadaro. Enda kunhanho iyi vanhu vakaoma, avo vanoedza kubata mwana havana kubudirira nekuda kwekusagadzikana kwemashure.
Muzvokwadi, sero yese yevanhu ine puroteni shell, mune mamwe mazwi, munhu leukocyte antigen iyo inoita mamwe mabasa. Chinangwa chikuru che antigen ndiko kuonekwa kwemiviri yekunze inopinda mumuviri zvakananga kana kuti zvisina kukodzera, pamwe nekupa mafungiro ekudzivirirwa kwezvirwere zvinodzivirira "utachiona" hwekutanga hwemarudzi akasiyana-siyana emitumbi inokuvadza. Somugumisiro wekudzivirira uku, hutachiona hunotanga kushingaira kusimbisa miviri inodzivirira.
Kuti vakwanise kubata pamuviri mwana, vashandi vanofanira kuva nechero yakasiyana yemakromosomes, ayo, nekuda kwekuda kwavo, inowedzera mukana wekukurumidza kuberekwa kwekuberekwa nekutsungirira (zvirwere zvinodzivirira "rukato rwerudo" kubva pane zvinogona kutyisidzira kuberekwa). Zvimwe zvisingaiti, kana kromosome yakagadzirwa nevamwe yakanyanya kufanana, leukocyte antigen inoona kuberekwa sechinhu chekunze uye inokonzera chirongwa chekurambwa kubva kune placenta yebumbiro risina kusimbiswa. Nokuda kwechikonzero chekusawirirana kwemafuro emurume nemukadzi.
Zvinokwanisika here kuberekwa nemaitiro asina kufanana?
Uyu mubvunzo unobvunzwa, zvichida, nevose vakaroorana vanofunga kuwana mwana wavo. Asi usati wataura nezvedambudziko racho, zvakakosha kuongororwa. Kuti uwane dhiyabhorosi kubva pakuongororwa pamusoro pehutano hwehutano, iwe unofanirwa kuchengetedza pamwoyo murefu mukati memavhiki maviri. Nzira yekutsvaga inosanganisira matanho-nhanho matanho kune vose varoorana: kubviswa uye kuenzaniswa kwemajeni eDNA, uyewo kuongorora ropa kubva mumvura. Migumisiro yekuongororwa haifaniri kudarika zvikwangwani mune imwe chete, sezvo vaviri vaviri vakafanana vane chromosomes vakatotaura nezvekusagadzikana kwemajeni evanhu nevakadzi.
Gynecologists anotaura kuti kukwanisa kushivirira mwana zvakakwana kana akacherechedza huwandu hwehutano hunotsanangurwa nechiremba anoenda, nokuti avo vanobatsirana, mumatambudziko akawanda, vanotambura kusagadzikana kusina kukodzera, iyo nyanzvi inokwanisa kudzora pamatanho ose ekudzivirira pamuviri nekubereka mwana.
Kurapa kwezvinodhaka, in vitro fertilization (IVF) kana kushandiswa kwemaitiro neCISI ndezvimwe zviito zvakakosha izvo zvino zvave zvichipa vabereki munguva yemberi mukana wekuva kunyange madzitateguru makuru uye vanaamai. Kushandurirwa kwezvenyanzvi kwema genetic inokubvumira kusarudza nzira imwe neimwe kune mumwe murwere mumwe nomumwe uye kune vakaroorana vari vazhinji.