June 17, 2011

NEW YORK - Vakadzi vezera rekubereka vanofanira kufara nemashoko: Makambani eAmerica ari kushanda kuti agadzire kuongorora ropa kweDown's syndrome iyo yakarurama kupfuura iyo iripo ikozvino nokukurumidza sezvinobvira. Muedzo uyu unogona kuchengetedza vakadzi vazhinji kubva pakuva neamniocentesis.

Muedzo unoita kuti zvikwanise kudzoreredza fetal DNA muropa raamai, pamavhiki mapfumbamwe ekuzvitakura, zvisati zvave pachena kune avo vakamupoteredza. Kutozosvikira panguva iyoyo, amniocentesis, kuedza kunobatanidza kubvisa amniotic fluid nokupinza jekiseni mudumbu raamai, yaigona bedzi kuitwa pamwedzi mina yenhumbu, kana kuti kunyange kupfuura.

Down's Syndrome chirwere chemajini chinokonzera kunonoka kukura kwepfungwa nemuviri. Vanorwara nazvo vane zviso zvakati sandara, mitsipa mipfupi, nemaoko madiki netsoka. Vane njodzi yakakura yezvinetso, kunyanya zvemwoyo kana zvekunzwa. Hupenyu hwavo hunotarisirwa kusvika makore makumi maviri nerimwe.

Muzviitiko zvakawanda, trisomy 21 inoonekwa mushure mekuzvarwa, asi kana kuongororwa kutsva kweropa kukaitwa, zvinogona kutora nguva refu zvisati zvaitika. Kunyangwe kana kuongororwa kwepamberi kunogona kumiririra nyaya yakaoma kune vakaroorana vanofanirwa kusarudza kubvisa kana kusabvisa. Nekuda kwekuti vabereki vevana vane Down's syndrome vanosangana nematambudziko mune zvedzidzo uye mukuchengetwa kwemwana uyu akura, nguva yakaoma kuvabereki vakwegura, akadaro chiremba. Mary Norton, purofesa wezvokudzivirira uye gynecology paStanford University.

Kana ariwo, Dr. Brian Skotko, nyanzvi yeDown’s syndrome paBoston Pediatric Hospital, anodavira kuti “ruzhinji rwevana vane Down’s syndrome nemhuri dzavo vanoti upenyu uhwu hunokosha zvikuru.” Ndiye munyori wechinyorwa chesainzi chekushandiswa kwevanachiremba uye chine chekuita nekuziviswa kwekuongororwa kwetrisomy.

Pakutanga, vanachiremba vakafunga kuchengetera bvunzo iyi kune vakadzi vari panjodzi, kunyanya avo vanopfuura makore 35. Pakupedzisira, inogona kutsiva bvunzo dzenguva dzose dzinopihwa kune chero mukadzi ane pamuviri. Nekuti inopa mashoma maalarm enhema pane bvunzo dzazvino, vakadzi vashoma vanozopihwa zvisina kufanira amniocentesis, nyanzvi dzinodaro. Uye sezvo njodzi yekubva pamuviri iri zero, nhamba yakawedzera yevakadzi inogona kukokwa kuti vazviise pasi payo. Nekuda kweizvozvo, huwandu hwevakadzi vanoziva kuti vane nhumbu yemwana ane Down's syndrome hunogona kuwedzera.

Makambani maviri eCalifornian, Sequenom neVerinata Health, vanotarisira kupa bvunzo kune vanachiremba vekuAmerica muna Kubvumbi unotevera. Aya makambani anotarisira kusunungurwa kwavo mukati mechikamu chekutanga che2012, iyo yeSequemon inoshanda kubva kumavhiki e10 ekuzvitakura, iyo yeVerinata, kubva kumavhiki masere. Mhedzisiro ichavepo mazuva manomwe kusvika gumi gare gare. Kune chikamu chayo, LifeCodexx AG, kambani yeGerman, inozivisa kuti inoda kuita kuti bvunzo dzayo dziwanikwe kumusika weEuropean kubva mukupera kwa2011, bvunzo dzinogona kuitwa pakati pegumi nemaviri.^e uye 14^e vhiki. Hapana yemakambani aya akataura nezvemitengo.

Nokuti bvunzo dzinopa mhinduro kare kare, pamuviri pasati paonekwa kana kuti amai vanzwa kuti mwana wavo achifamba, zvinogona kubvumira kubvisa pamuviri nekuzvidira kusati kwapera kwekutanga kwetatu. “Hapana anofanira kuziva kuti une pamuviri,” akawedzera kudaro Brian Skotko. Pamwe hauna kana kuudza murume wako ”.

Nancy McCrea Iannone wekuNew Jersey akabereka mwana musikana ane Down syndrome makore matanhatu apfuura. "Ini ndingadai ndakada bvunzo isingapindire kune dambudziko rekuti ndiite amniocentesis here," anodaro. Pasinei nekutya kwake kubva pamuviri uye "tsono mudumbu make", akazobvuma kuongororwa uku. Iye zvino anopa mazano kune vanaamai venguva yemberi vevana vane Down's syndrome uye anoomerera pakudiwa kwekuziva chirwere chacho asati aberekwa kuitira kuti agadzirire.

Nhau kubva ku © The Canadian Press, 2011.