Mmene CF Gene Yopangidwira Yadutsa Mumabanja
Mungadabwe kumva kuti cystic fibrosis (CF) si matenda omwe sali osowa. Kukhudza anthu pafupifupi 30,000 ku United States ndi anthu 100,000 padziko lonse lapansi, ndiyo njira yodziwika bwino yodzidzimutsa yowonongeka kwa odwala pakati pa anthu a ku Caucasus. Matendawa amapezeka m'mitundu ina, koma mobwerezabwereza.
Cystic fibrosis imayamba chifukwa cha vuto la cystic fibrosis transmembrane regulator (CFTR).
Pali mitundu yoposa 1200 yomwe imadziwika bwino ya CFTR gene yomwe ingayambitse cystic fibrosis. Momwe njira iyi ya CFTR ya chiberekero imadutsa kuchokera kwa makolo kupita kwa ana imadalira pazifukwa zingapo.
Kugonjetsa Kugonjetsa ndi Osagonana
Anthu onse ali ndi magawo awiri ndi awiri a ma chromosome osagonana ndi ma chromosome awiri ogonana. Mabungwe awiri osagonana omwe sagonana nawo amatchedwa chromosomes autosomal. Jini lomwe liri losavomerezeka mu cystic fibrosis (CFTR gene) imapezeka mu ma chromosomes awiri aŵiri. Popeza zimapezeka m'modzi mwa awiri awiri oyambirira a chromosomes, vuto la cystic fibrosis ndi autosomal. Sizokhudzana ndi kugonana, kotero kuti matendawa sanadutsedwe ndi amayi kapena abambo okha ndipo angathe kuchitika kaya ndi abambo.
Kukhazikika kumatanthauza kuti ma chromosome onse awiriwa amakhala opanda chilema kuti apeze nthendayi-makolo onse ayenera kukhala wonyamula jini la mwanayo kuti akhale ndi CF. Ngati munthu ali ndi chromosome imodzi yokha, iyeyo adzakhala chonyamulira koma sadzakhala ndi matendawa.
Kodi Mwana Angapeze Bwanji CF Ngati Palibe Wina M'banja Ali Nawo?
Popeza CF ndi khalidwe lopitirira malire, mwana ayenera kulandira majeremusi awiri ofooka kuti abereke ndi matendawa. Mofanana ndi mitundu yonse ya chromosome, imodzi imachokera kwa mayi ndipo imodzi imachokera kwa bambo. Izi zikutanthauza kuti makolo onse awiri ayenera kunyamula chida cha cystic fibrosis kapena ali ndi CF okha kuti akhale ndi mwana ndi CF.
Anthu omwe ali zonyamula katundu ali ndi jini limodzi lopanda vuto. Iwo sadzakhala ndi CF ndipo sadzakhala ndi zizindikiro zirizonse. Pafupifupi 4% mwa anthu onse a ku Caucasus ndi a CF.
Ngati makolo onse ali ndi chithandizo chamtundu wa CFTR, ndiye kuti ali ndi mwayi wokwana 25% kuti mwana wawo akhale ndi CF kapena 50% mwayi kuti mwanayo azitenga kachilombo koma alibe mwayi komanso 25% mwanayo sangakhale chonyamulira nkomwe.
Pakhoza kukhala mibadwo yambiri ya ogwira ntchito m'banja popanda wina aliyense amene ali ndi matendawa. Kawirikawiri, anthu sakudziwa kuti ndizo zotengera mpaka mwana wawo atabadwa ndi CF. Kuyezetsa magazi kumapezeka ngati munthu ali ndi vuto la CF, koma kaŵirikaŵiri samachitidwa pokhapokha ngati mwamuna ndi mkazi ali ndi chifukwa choganiza kuti akhoza kunyamula.
Ndipotu, ana ndi akuluakulu angathe kuyesedwa kwa CF gene yosinthika kudzera mu swab pakamwa kapena poyerekeza ndi magazi kuti awone ngati ali wonyamulira. Ngakhale kuyezetsa ngongole kuli koyenera kwambiri, kusintha kwasintha sikungapezeke-kotero munthu yemwe amayesa molakwika chifukwa cha kusintha kwa CF angakhale chonyamulira.
Zotsatira:
Boyle, MP, MD. "Cystic Fibrosis." Journal ya American Medical Association. 2007 298: 1787-1793.
Genetics ya Cystic Fibrosis. University of Virginia Health System. November 7, 2005.