Cov txheej txheem:
- Yuav txawv txav embryos kho lawv tus kheej li cas?
- % pes tsawg ntawm blastocysts yog aneuploid?
- Puas aneuploid embryo kho lawv tus kheej?
- Yuav ua li cas feem pua ntawm cov embryos implanted ciaj sia?
Video: Puas feem ntau cov embryos aneuploid tuag hauv utero?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nyob rau hauv tib neeg embryos, feem ntau aneuploidies ua rau tuag, ua rau nchuav menyuam, lossis tsis ua rau cev xeeb tub. Lub sijhawm ntawm aneuploidy nce nrog lub hnub nyoog ntawm tus poj niam; Thaum tus poj niam muaj hnub nyoog 40 xyoo, kwv yees li 80% ntawm nws embryos yog aneuploid.
Yuav txawv txav embryos kho lawv tus kheej li cas?
Kev kuaj caj ces siv los tshuaj ntsuam embryos rau aneuploidy ua ntej in vitro fertilization (IVF) yog txhais tau tias pab kom tsis txhob nchuav menyuam. Tab sis ib txoj kev tshawb fawb tshiab qhia tau hais tias ntau tus embryos aneuploid ua tau nws tus kheej hauv plab… Qhov ntawd hu ua aneuploidy, thiab nws yog qhov ua rau muaj li 60% ntawm kev nchuav menyuam.
% pes tsawg ntawm blastocysts yog aneuploid?
Txawm tias cov poj niam hnub nyoog qis dua 35 xyoo, tus nqi aneuploidy zoo li ntau dua 50% ntawm cov cleavage-stage embryos thiab nce mus txog 30-40%hauv blastocysts (Table 1 thiab 2). Nrog rau cov poj niam uas muaj hnub nyoog dhau los, nws yuav dhau los ua qhov hloov pauv tus menyuam mos uas tsis muaj peev xwm ua rau muaj sia nyob.
Puas aneuploid embryo kho lawv tus kheej?
Qhov kev tshawb pom tias embryos nthuav tawm cov kab mob chromosomal txawv txav yog qhov ua tau zoo dua li qhov kev xav yav dhau los tuaj yeem hloov peb txoj hauv kev rau IVF thiab nce kev ua tiav. … Tam sim no cov kws tshawb fawb hauv Asmeskas tau pom tias aneuploid embryos muaj peev xwm tsim kho tus kheejthiab muaj peev xwm loj hlob mus rau cov menyuam mos noj qab haus huv.
Yuav ua li cas feem pua ntawm cov embryos implanted ciaj sia?
Tus ciaj sia taus yog 69% rau thawed zygotes, 85% rau D3 embryos, thiab 88% rau blastocysts [Table 1]. Tus nqi cog rau ib tus lej thawed yog 10% rau zygotes, 12% rau D3 embryos, thiab 14% rau blastocysts.
Pom zoo:
Puas yog lula hais rau feem ntau cov kev xav hauv lub koom txoos?
Lula resents Calpurnia coj cov me nyuam dawb mus rau lawv lub tsev teev ntuj dub. Lula nyuaj siab txog lub neej. Nws xav tias kev sib cais yuav tsum yog ob txoj kev. Lub koom txoos tsis pom zoo Lula . Lula hais lus rau cov neeg feem coob xav hauv lub koom txoos First Purchase Vim li cas tus sau suav nrog nws hauv pawg ntseeg scene ?
Puas yog cov nkauj pej xeem feem ntau qhia hauv tsev kawm ntawv?
Plag: as nkauj hmoob tsis qhia nyob rau hauv txhua lub tsev kawm ntawv. Thiab tseem muaj cov tsev kawm ntawv tshwj xeeb uas qhia cov nkauj . zaj nkauj feem ntau qhia nyob qhov twg? 2. Folksongs feem ntau qhia hauv tsev kawm ntawv.
Puas yog chloroplasts pom nyob rau hauv cov nroj tsuag feem ntau?
Chloroplast muaj nyob hauv cog hlwb, tab sis tsis nyob hauv cov tsiaj txhu. Lub hom phiaj ntawm chloroplast yog ua cov suab thaj uas pub lub tshuab ntawm tes . Puas yog chloroplasts pom nyob rau hauv cov nroj tsuag feem ntau Vim li cas?
Cov lus teb ntau qhov kev xaiv twg yog feem ntau?
Ntawm qhov kev xeem nrog plaub qhov kev xaiv (hais, A, B, C, thiab D), B yog me ntsis yuav raug (28%). Nco ntsoov, qhov kev cia siab ntawm txhua qhov kev xaiv yuav raug yog 25%. Thiab ntawm cov kev xeem nrog tsib txoj kev xaiv (hais, A, B, C, D, thiab E), Eyog cov lus teb uas feem ntau raug (23%) .
Puas yog plua plav feem ntau yog cov tawv nqaij tuag?
Muaj ib qho yuam kev uas feem ntau yog tib neeg daim tawv nqaij. Nws tsis yog: uas feem ntau xaus rau hauv da dej lossis da dej. Ob feem peb ntawm cov plua plav hauv koj lub tsev los ntawm sab nraud, raws li cov av taug qab ntawm koj txhais taw, thiab cov khoom hauv huab cua xws li paj ntoos thiab cov hmoov av.
