Cryopreservation ntawm embryos

Cryopreservation ntawm embryos yog ib txoj kev uas cia lawv nyob twj ywm siv tau ob peb lub xyoo nrog lub hwj huam khaws cia faib tawm tom qab thawing. Cov txheej txheem cryopreservation yog ua los ntawm kev kho cov embryos nrog kua nitrogen. Nyob rau hauv tsab xov xwm no peb yuav xav txog cov txheej txheem ntawm txoj kev khov nab kuab, lawv cov hom, thiab qhov tshwj xeeb ntawm cryoprotective embryos nyob rau hauv lub uterine kab noj hniav thaum lub sij hawm nyob rau hauv vitro fertilization .

Technology ntawm embryo khov

Muaj 2 txoj kev ntawm khov embryos: vitrification thiab "freezing khov". Cov cuab yeej ntawm "qeeb khov" yog xam tsis tau thiab tsis tau siv los siv rau ntau qhov chaw. Nws muaj hauv txav cov khov kho embryos rau hauv ib lub straw nrog ib tug cryoprotectant, ces cov dej khov dua yog tsim. Khov lub embryo tiv thaiv nws los ntawm dej khov, tab sis tuaj yeem ua rau nws lub cev qhuav dej. Qhov no thiaj li muaj cov naj npawb ntawm embryos uas tsis muaj peev xwm tsuas yog mus ciaj sia, tab sis kuj yuav khaws lub peev xwm los faib thiab sib txawv.

Vitrification ntawm embryos yog ib txheej txheem niaj hnub, uas muaj nyob rau hauv kev kho lawv nrog kua nitrogen, thaum cov dej uas lawv muaj hloov mus rau hauv jelly.

Cov khoom siv rau cryopreservation yog kim heev, tshwj xeeb tshaj yog rau ib tug siv rau "qeeb khov". Lub txee-lub neej ntawm frozen embryos yuav tsum tsis txhob muaj ntau tshaj 5 xyoo.

Hloov ntawm embryos tom qab cryopreservation

Lub embryo, uas tau los ntawm ib tug txias ua ntej nws yog muab tso rau hauv lub tsev menyuam, yuav tsum tau npaj. Ua li no, lawv thawed ntawm chav tsev kub thiab kho nrog kev kho tshwj xeeb uas yuav pab tau lub embryo kom nws cov khoom. Kev hloov cov thawed embryos yog kwv los ntawm ib tus catheter tshwj xeeb, uas yog txhaj los ntawm lub ncauj tsev menyuam hauv kwj dej hauv lub uterine kab noj hniav. Cov teeb meem ntawm kev hloov ntawm cryopreserved embryos yuav ua rau tuag ntawm embryos uas tuag tau los ntawm kev kub hloov. Cev xeeb tub uas tau tshwm sim los ntawm replanting frozen embryos, proceeds zoo li lub cev xeeb tub, thiab tseem tsis ua rau kev txhim kho ntawm anomalies nyob rau hauv lub fetus.

Peb soj ntsuam cov uas twb muaj yees ntawm embryo freezing, as Well as txoj kev rau replanting khov embryos. Cryopreservation ntawm embryos ua rau nws rov tau rov yog tias tsis muaj cev xeeb tub tom qab thawj txheej txheem.