Trisomies 21 yog dab tsi?

Cov txheej txheem:

Trisomies 21 yog dab tsi?
Trisomies 21 yog dab tsi?
Anonim

Ib lo lus kho mob rau muaj ib daim ntawv luam ntxiv ntawm chromosome yog 'trisomy. ' Down Syndrome tseem hu ua Trisomy 21. Daim ntawv theej ntxiv no hloov pauv tus menyuam lub cev thiab lub hlwb kev loj hlob, uas tuaj yeem ua rau muaj kev nyuaj siab rau tus menyuam.

trisomy 21 yog dab tsi thiab nws tsim li cas?

Kwv yees li 95 feem pua ntawm lub sijhawm, Down Syndrome yog tshwm sim los ntawm trisomy 21 - tus neeg muaj peb daim ntawv theej ntawm chromosome 21, tsis yog ob daim ntawv ib txwm, hauv txhua lub hlwb. Qhov no yog tshwm sim los ntawm qhov txawv txav ntawm tes thaum lub sij hawm kev loj hlob ntawm cov phev cell los yog qe cell.

trisomy 21 yog dab tsi thiab qee yam ntawm nws cov yam ntxwv?

Down Syndrome (trisomy 21) yog ib yam kab mob caj ces. Nws suav nrog qee yam kev yug me nyuam, teeb meem kev kawm, thiab lub ntsej muag. Ib tug menyuam yaus uas muaj tus mob Down kuj tuaj yeem muaj lub plawv tsis xws luag thiab teeb meem nrog kev pom thiab hnov lus.

Vim li cas trisomy 21 feem ntau tshwm sim?

Abstract. Trisomy 21 (Down Syndrome) yog qhov feem ntau autosomal trisomy hauv cov menyuam yug tshiab, thiab muaj feem cuam tshuam nrog kev muaj hnub nyoog ntawm leej niam. Trisomy 21 feem ntau tshwm sim los ntawm niam meiotic nondisjunction. Kev hloov pauv tsis sib npaug suav txog li 4% ntawm tus neeg mob.

Txoj kev pheej hmoo trisomy 21 yog dab tsi?

Down Syndrome (trisomy 21) yog qhov feem ntau lees paub txog caj ces ntawm kev puas hlwb. Txoj kev pheej hmoo ntawm trisomy 21 yog ncaj qha ntsig txog niam hnub nyoog. Txhua hom kev kuaj ua ntej yug menyuam rau Down syndrome yuav tsum yogyeem.

34 cov lus nug ntsig txog pom

Leej txiv lub hnub nyoog puas cuam tshuam rau tus mob Down?

Fisch thiab nws cov npoj yaig pom tias tus nqi qis mob zuj zus ntxiv nrog rau kev nce qib ntawm leej txiv rau cov poj niam hnub nyoog 35 txog 39 xyoo. Qhov loj tshaj plaws, txawm li cas los xij, tau pom hauv cov poj niam hnub nyoog 40 xyoo thiab laus dua nrog cov hnub nyoog ntawm leej txiv.

hnub nyoog txaus ntshai Down syndrome yog dab tsi?

Lub caij nyoog muaj menyuam yaus uas muaj tus mob Down nce ntxiv raws sijhawm. Qhov kev pheej hmoo yog txog 1 ntawm 1, 250 rau tus poj niam uas xeeb tub thaum muaj hnub nyoog 25. Nws nce mus txog li 1 ntawm 100 rau tus poj niam uas xeeb tub thaum muaj hnub nyoog 40. Qhov kev pheej hmoo yuav siab dua.

Tau trisomy 21 tiv thaiv?

Tsis muaj laj thawj ntseeg cov niam txiv tuaj yeem ua dab tsi los ua lossis tiv thaiv Down syndrome hauv lawv tus menyuam. Cov kws tshawb fawb tsis tau't paub yuav ua li cas tiv thaiv chromosome yuam kev uas ua rau qhov teeb meem no. Down syndrome feem ntau tuaj yeem kuaj tau ua ntej yug. Tom qab yug me nyuam, koj tus menyuam yuav raug kuaj xyuas lub cev.

Puas trisomy 21 ntau dua rau cov txiv neej lossis poj niam?

Txhua yam, ob tug poj niam txiv neej muaj kev cuam tshuam sib npaug. Tus txiv neej-rau-poj niam pivyog me ntsis siab dua (kwv yees li 1.15: 1) hauv cov menyuam yug tshiab uas muaj tus mob Down, tab sis qhov kev cuam tshuam no txwv rau cov menyuam mos uas muaj trisomy dawb 21.

Tus menyuam puas muaj tus mob Down syndrome zoo li qub?

Cov neeg muaj Down syndrome txhua tus zoo tib yam. Muaj qee yam ntawm lub cev uas tuaj yeem tshwm sim. Cov neeg mob Down syndrome tuaj yeem muaj tag nrho lawv lossis tsis muaj. Tus neeg mob Down syndrome yuavib txwm zoo li nws tsev neeg nyob ze dua ib tus neeg uas muaj tus mob.

Qhov ib txwm muaj ntawm Trisomy 21 yog dab tsi?

Tus nqi txiav tawm yog raws li nram no: Trisomy 21 ≥ 1:270; Trisomy 18 ≥ 1: 350, AFP MoM ≥2.50, muaj kev pheej hmoo siab ntawm ONTD [16]. Cov poj niam cev xeeb tub uas muaj kev pheej hmoo siab ntawm Trisomy 21 thiab Trisomy 18 tau qhia kom kuaj xyuas karyotype siv cov kua dej amniotic kom paub meej tias qhov kev kuaj mob.

3 hom kab mob Down yog dab tsi?

Muaj peb hom Down syndrome:

  • Trisomy 21. Qhov no yog qhov ntau tshaj plaws, qhov twg txhua lub cell hauv lub cev muaj peb daim qauv ntawm chromosome 21 es tsis txhob muaj ob.
  • Kev hloov pauv Down syndrome. Hauv hom no, txhua lub cell muaj ib feem ntawm cov chromosome 21 ntxiv, lossis ib qho ntxiv tag nrho. …
  • YMosaic Down Syndrome.

Puas 2 tus niam txiv mob Down syndrome muaj tus menyuam ib txwm muaj?

Ib nkawm niam txiv muaj peev xwm muaj menyuam tus mob Down's syndrome, tab sis nws paub zoo tias cov poj niam laus yuav muaj tus menyuam muaj tus mob ntau dua cov poj niam hluas.

Koj puas tuaj yeem qhia tau yog tias tus menyuam muaj Down syndrome hauv ultrasound?

Ib qho ultrasound tuaj yeem kuaj pom cov kua dej nyob tom qab ntawm tus menyuam hauv plab caj dab, uas qee zaum qhia tias Down syndrome. Kev kuaj ultrasound yog hu ua ntsuas ntawm nuchal translucency.

Puas yog Down Syndrome yog qhov tsis taus?

Down's Syndrome yog qhov tshwm sim ntau tshaj plaws ntawm kev txawj ntse, suav txog kwv yees li 15-20% ntawm cov neeg xiam oob khab. Nws yog ntseeg hais tias cov neeg nrog Down'sSyndrome yeej ib txwm muaj.

Cov ntxhais puas tuaj yeem xeeb menyuam?

Kev muaj tiag: Nws muaj tseeb tias tus neeg mob Down syndrome yuav muaj teeb meem loj hauv kev yug me nyuam. Tab sis cov poj niam uas muaj tus mob Down yog fertile thiab muaj peev xwm yug me nyuam. Raws li cov kev tshawb fawb laus, uas tau raug tshuaj xyuas dua, cov txiv neej uas muaj tus mob Down yog infertile.

haiv neeg twg muaj tus mob Down tshaj plaws?

Lub sijhawm xyoo 2012-2016 (nruab nrab) hauv Tennessee, Trisomy 21 (Down syndrome) yog qhov siab tshaj plaws rau American Indian me nyuam mos (35.1 ntawm 10,000 yug nyob), ua raws li Hispanics (22.7 ntawm 10,000 tus menyuam yug los), dawb (14.6 ntawm 10,000 tus menyuam yug los), dub (12.1 ntawm 10,000 tus menyuam yug los) thiab Neeg Asians (9.5 ntawm 10,000 yug menyuam muaj sia).

Koj puas tuaj yeem thim rov qab Down syndrome?

Down's Syndrome (DS) yog ib yam kab mob uas tshwm sim los ntawm kev muaj tag nrho ntawm ib feem ntawm daim ntawv thib peb ntawm chromosome 21. Txuas rau kev qeeb hauv lub cev kev loj hlob, me me mus rau nruab nrab kev txawj ntse thiab lub ntsej muag txawv,tam sim no tsis muaj tshuaj kho tus kab mob.

Leej twg feem ntau yuav tau txais Downs?

Cov poj niam hluas muaj menyuam mos ntau zaus, yog li cov menyuam mos uas muaj tus mob Down muaj ntau dua hauv pawg ntawd. Txawm li cas los xij, niam uas laus dua 35 feem ntau yuav muaj tus menyuam raug mob.

Tsim theem twg trisomy 21 tshwm sim?

Mosaic trisomy 21.

Qhov no hu ua "mosaicism." Mosaic trisomy 21 tuaj yeem tshwm sim thaum yuam kev hauv kev faib cell tshwm sim thaum ntxov tab sis tom qab lub qe ib txwmthiab phev koom ua ke. Nws kuj tseem tuaj yeem tshwm sim thaum ntxov hauv kev loj hlob thaum qee lub hlwb poob ib qho chromosome 21 ntxiv uas muaj nyob rau ntawm kev xeeb tub.

Kev ntxhov siab tuaj yeem ua rau tus mob Down?

Down syndrome, uas tshwm sim los ntawm chromosome defect, zoo li yuav muaj qhov sib txuas ncaj qha nrog kev nce qib ntawm kev ntxhov siab pom hauv ob niam txiv thaum lub sijhawm xeeb tub, hais Surekha Ramachandran, tus tsim ntawm Down Syndrome Federation ntawm Is Nrias teb, uas tau kawm txog tib yam txij li thaum nws tus ntxhais tau kuaj pom tias muaj …

Leej twg txaus ntshai rau tus menyuam uas muaj tus mob Down?

Maternal Age: Down syndrome tuaj yeem tshwm sim ntawm leej niam hnub nyoog, tab sis qhov muaj peev xwm nce ntxiv thaum tus poj niam laus dua. Ib tug poj niam hnub nyoog 25 xyoo muaj ib qho ntawm 1, 200 txoj hauv kev muaj menyuam yaus nrog Down syndrome. Thaum muaj hnub nyoog 35 xyoos, qhov kev pheej hmoo nce mus rau ib ntawm 350-thiab nws dhau los ua ib ntawm 100 thaum muaj hnub nyoog 40.

Hnub nyoog twg koj yuav tsum tsis txhob muaj menyuam?

Ib tug poj niam lub siab tshaj plaws kev yug menyuam yog nyob nruab nrab ntawm cov hluas thiab 20s lig. Thaum muaj hnub nyoog 30 xyoo, fertility (lub peev xwm xeeb tub) pib poob qis. Qhov kev poob qis no yuav nrawm dua thaum koj mus txog koj li 30 xyoo. Los 45, kev xeeb tub tau poob qis heev uas kev xeeb tub ib txwm tsis zoo rau cov poj niam feem ntau.

Cov tsos mob ntawm Down syndrome thaum cev xeeb tub yog dab tsi?

Cov tsos mob thiab cov tsos mob ntawm Down Syndrome

  • Lub ntsej muag tiaj tus nrog lub ntsej muag nce mus rau qhov muag.
  • caj dab luv.
  • Zoo li pob ntseg lossis pob ntseg me.
  • Npaj nplaig.
  • taub hau me.
  • Ntxawm plees hauv xib teg nrogntiv tes luv luv.
  • dawb pob hauv lub qhov muag.
  • Cov leeg nqaij tsis zoo, cov ligaments xoob, ua kom yooj yim.

Dab tsi yog kev txiav tawm rau kev pheej hmoo siab Down syndrome?

Lub peb hlis ntuj thib ob pab pawg muaj kev pheej hmoo siab yog raws li ib qho kev txiav tawm ntawm 1: 250. Cov txiaj ntsig: Hauv thawj peb lub hlis twg, qhov kuaj pom tus nqi (DR) txawv ntawm 21% (6/29) txog 52% (15/29) raws li kev pheej hmoo siab thawj peb lub hlis twg txiav tawm tau hloov pauv los ntawm 1: 10 rau 1: 70.

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