June 17, 2011

NEW YORK - Azimayi a msinkhu wobereka ayenera kukondwera ndi nkhaniyi: Makampani a ku America akugwira ntchito yopanga magazi a Down's syndrome omwe ali olondola kuposa omwe akupezeka posachedwa. Kuyezetsa uku kungathe kupulumutsa amayi ambiri kuti asapeze amniocentesis.

Kuyesedwa kumapangitsa kuti athe kuchira DNA ya fetal m'magazi a amayi, pamilungu isanu ndi inayi ya mimba, zisanawonekere kwa omwe ali pafupi naye. Kufikira nthaŵiyo, amniocentesis, kuyesa komwe kumaphatikizapo kuchotsa amniotic fluid mwa kuika syringe m’mimba mwa mayi, kukanatheka kokha pa miyezi inayi ya mimba, kapena kuposa pamenepo.

Down's syndrome ndi matenda obadwa nawo omwe amayambitsa kukula pang'onopang'ono kwamalingaliro ndi thupi. Anthu amene amavutika ndi nkhope zawo zimakhala zosalala, khosi lalifupi, manja ndi mapazi ang’onoang’ono. Iwo ali ndi chiopsezo chachikulu cha zovuta, makamaka mtima kapena kumva. Chiyembekezo cha moyo wawo ndi pafupifupi zaka 21.

Nthawi zambiri, trisomy 21 imapezeka pambuyo pobadwa, koma ngati kuyezetsa magazi kwatsopano kumeneku kukuchitika, kumatha nthawi yayitali. Ngakhale kudziwa kwa oyembekezera kungakhale kovuta kwa maanja omwe ayenera kusankha kuchotsa kapena kusachotsa mimba. Chifukwa chakuti makolo a ana amene ali ndi matenda a Down syndrome amakumana ndi mavuto ponse paŵiri m’munda wa maphunziro ndi chisamaliro cha mwana amene wakula, nthaŵi yovuta kwa makolo okalamba, anatero dokotalayo. Mary Norton, pulofesa wa Obstetrics ndi Gynecology ku yunivesite ya Stanford.

Kumbali yake, Dr. Brian Skotko, katswiri wa matenda a Down’s pachipatala cha Boston Pediatric Hospital, akukhulupirira kuti “ana ambiri amene ali ndi matenda a Down’s syndrome ndi mabanja awo amanena kuti miyoyo imeneyi ndi yamtengo wapatali kwambiri.” Iye ndi mlembi wa nkhani yasayansi yogwiritsidwa ntchito ndi madokotala komanso yokhudzana ndi kulengeza kwa matenda a trisomy.

Poyamba, madokotala ankaganiza kuti asungire mayesowa kwa amayi omwe ali pachiopsezo, makamaka omwe ali ndi zaka zoposa 35. Potsirizira pake, angalowe m'malo mwa mayesero omwe amaperekedwa kwa amayi apakati. Chifukwa zimapereka ma alarm abodza ochepa kuposa mayeso apano, azimayi ochepa adzapatsidwa amniocentesis osafunikira, akatswiri akutero. Ndipo popeza kuti chiwopsezo cha kupita padera ndi ziro, chiŵerengero chowonjezereka cha akazi chingapemphedwe kuchigonjera. Zotsatira zake, chiŵerengero cha amayi omwe akudziwa kuti ali ndi pakati ndi mwana wodwala matenda a Down syndrome chikhoza kuwonjezeka.

Makampani awiri aku California, Sequenom ndi Verinata Health, akuyembekeza kupereka mayeso kwa madotolo aku America pofika Epulo wamawa. Makampaniwa akuyembekeza kumasulidwa kwawo koyambirira kwa 2012, ya Sequemon yogwira ntchito kuyambira masabata a 10 a mimba, ya Verinata, kuyambira masabata asanu ndi atatu. Zotsatira zidzapezeka patatha masiku asanu ndi awiri kapena khumi. Kwa mbali yake, LifeCodexx AG, kampani yaku Germany, yalengeza kuti ikufuna kuyesa ku msika waku Europe kuyambira kumapeto kwa 2011, mayeso omwe atha kuchitidwa pakati pa 12.^e ndipo 14^e sabata. Palibe m'makampaniwa omwe adatchula mitengo.

Chifukwa kuyezetsa kumapereka yankho koyambirira kwambiri, mimba isanadziwike kapena mayi akumva kuti mwana wake akusuntha, zikhoza kulola kuchotsa mimba mwakufuna kumapeto kwa trimester yoyamba. “Palibe amene ayenera kudziŵa kuti uli ndi pakati,” anawonjezera motero Brian Skotko. Mwinanso simunamuuze mwamuna wanu ”.

Nancy McCrea Iannone wa ku New Jersey anabala mwana wamkazi wa Down syndrome zaka zisanu ndi chimodzi zapitazo. "Ndikadakonda mayeso osasokoneza kusiyana ndi vuto loti ndikhale ndi amniocentesis kapena ayi," akutero. Ngakhale kuti ankaopa kupititsa padera komanso "singano m'mimba mwake", pomalizira pake adavomera kuti ayesedwe. Panopa amalangiza amayi amtsogolo omwe ali ndi ana omwe ali ndi matenda a Down syndrome ndipo amatsindika kufunika kodziwa matendawa asanabadwe kuti akonzekere.

Nkhani zochokera © The Canadian Press, 2011.