Ndeipi rudzi urwu rwenzira?
Nguva yakareba embryo kukura inofanirwa nehupamhi-tech uye pane zvakaoma nzira inoda mabhuku anokosha, maikiratiro akachengetedzwa zvakanaka uye nemidziyo inodhura. Izvo zviri kutarisa chinhu ichi chisati chiri nzvimbo dzose dzinobatanidzwa muIVF uye kuronga pamuviri kunopa nzira yakadaro.
Iyi nzira inosanganisira kukura mazai musati blastocyst. Maitiro aimboshandiswa kare akashandura kuiswa kwemukati mumudzimai womukadzi pachigadziko chekuparadzana kwayo, i.e. muna 2-3 mazuva. Iyi chokwadi yakaderedza kubudirira kweIVF uye nzira yekutumira mwana inofanira kubvunzwa kakawanda.
Kuchinja kunekurima mazai in vitro kwakaita kuti zvigone kushandiswa kwekombiki mumunda we embryology, nekuda kwekukura kwakanyanya mumunda wekurapa. Nzira iyi, inoshandiswa mukuraira makiriniki ekuberekwa munyika, inosanganisira kwenguva yakareba kusangana ne embrau yemamiriro akasiyana (SICM / SIBM uye Embryo Assist / Blast Assist).
Zvakakoshawo kuziva kuti nzira iyi haikwanisi kuvapo pasina kushandiswa kwechinhu chakakosha-a multi-gas incubator. Icho chiri mairi kuti zygotes dzakawanda dzinoiswa pamwe chete nemutsetse wemuviri. Mushure memazuva 4-6, nyanzvi dzinobvisa blastocyst kubva pane iyi sarudzo uye dzinoongorora iyo inogoneka. Maererano nenhamba yedata, inenge kubva 60-70% ye mazai akabatanidzwa munguva yeVIV, zvinokwanisika kuwana mahara.
Ndezvipi zvakakosha zvekurima kwenguva refu mazai?
Iyi nzira yeVF inobvumira, kutanga kwezvose, kuvandudza hutano hwekusarudzwa (kusarudzwa) uye kushandisa mazamu chete ane zvakakwana zvakadanwa zvinonzi kushandiswa kwekugadziriswa kwekugadzirisa. Mumashoko akajeka, kushandiswa kwemuitiro uyu kwakanyanya kuwedzera mikana yekudzivirira mushure meVIV.
Mukuwedzera, pakati pezvimwe zvinobatsira zvekugara kwenguva refu embryo kukura zvinowanzonzi:
- kuderera kwehuwandu hwechromosomal kusagadzikana mu mazai anoiswa mubhokisi blastocyst;
- iyi nzira inowedzera hupenyu pakuenzanisa ne embryo kutengesa kusvika mazuva matatu;
- pakusimwa kwenguva refu zvakakwana kuisa mazai 1-2 muchero wechibereki, tk. mukana wekusimbisa kwavo uye kukurudziro yakakwirira kwazvo;
- mukana wekugadzirisa dambudziko rakadaro se ectopic pregnancy inoderedzwa zvikuru.
Ndeipi kukanganisa kweiyo nzira?
Sezvo wakanzwisisa kuti uku kurima kwenguva refu yemaketet uye embryo, ataura nezvakanakira nzira iyi yeVF, zvakakosha kuti usakanganwa nezvekukanganisa kweiyo nzira.
Chokutanga cheizvi ndechekuti haisi yose yakadyarwa mazai anowedzera ku blastocyst, muzviitiko zvizhinji asi 50% chete avo vanosvika padanho rekuvandudza. Zvichipiwa izvi, nzira iyi inogona kuitika chete kana nezuva rechitatu rekudzivirira kuberekwa, zvinoramba zvichishandiswa 4. Pamusana pezasi, mukana wekuwana imwe chete yakasvibirira, kusvika padanho reBlastocyst, yakanyanya kuderera.
Chechipiri chisingaiti chinogona kutumidzwa nguva iyo kunyange iyo embryo inosvika padanho rekugadziriswa rinodiwa pakugadziriswa, izvi hazvipi kupa 100% chivimbiso chokuti kusimwa kuchabudirira uye kuberekwa kuchauya.