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Athens Macedonian News Agency: News in Greek, 11-12-11

Athens News Agency: News in ASCII Greek Directory - Previous Article - Next Article

From: The Athens News Agency at <http://www.ana.gr/>

PERIEXOMENA
  • [01] Embryonika kyttara xrhsimopoihqhkan gia thn paragwgh aimopetaliwn

    [01] Embryonika kyttara xrhsimopoihqhkan gia thn paragwgh aimopetaliwn

    Episthmones dhmioyrghsan gia prwth fora aimopetalia anaprogrammatizontas embryonika kyttara poy proerxontai apo enhlika kyttara, dinontas th dynatothta gia mia ananewsimh prosfora aytoy toy eyqraystoy systatikoy toy aimatos.

    Ereynhtes sto Kentro gia thn Ereyna kai thn Efarmogh Kyttarwn iPS sto Panepisthmio toy Kioto sthn Iapwnia paroysiasan dedomena se mia synanthsh ths Amerikanikhs Etairias Aimatologias sto San Ntiegko katadeiknyontas pws mporoyn na dhmioyrghsoyn ta kyttara sto ergasthrio kai epibebaiwnoyn pws exoyn thn idia diarkeia zwhs me ta kanonika anqrwpina aimopetalia otan egxyontai se pontikia.

    "To epomeno bhma qa einai na diejagoyme mia dokimh gia na kaqoristei kata poson ta aimopetalia mas mporoyn na leitoyrghsoyn sto anqrwpino swma kai dynamei na parasxoyn mia staqerh prosfora aimopetaliwn se mia prokaqorismenh poiothta kai posothta poy mporei sth synexeia na xrhsimopoihqei gia qerapeia metaggishs" , dhlwse o dr Kotzi Eto, kaqhghths sto kentro toy Kioto kai anwteros syggrafeas ths ereynas.

    Parakinoymena polydynamika embryonika kyttara (induced pluripotent stem cells), h kyttara iPS, paragontai me ton katallhlo xeirismo kanonikoy anqrwpinoy dermatos h kyttarwn aimatos etsi wste na epanelqoyn se mia progenesterh katastash kata thn opoia mporoyn na diaforopoihqoyn se enan ariqmo diaforetikwn typwn kyttarwn.

    Otan anakalyfqhkan gia prwth fora to 2006, ta kyttara iPS emoiazan na einai h teleia lysh sthn hqikh diamaxh gia th xrhsh embryikwn kyttarwn, omws h diadikasia paragwghs mh metallagmenwn kyttarwn apodeixqhke endiaferoysa.

    Oi periorismoi sth xrhsh embryonikwn kyttarwn gia thn paragwgh aimopetaliwn exei ginei h ikanothta na breqei mia meqodos poy dhmioyrgei megalo ariqmo ychlhs poiothtas, leitoyrgikwn aimopetaliwn.

    Oi iapwnes ereynhtes jekinhsan na dhmioyrghsoyn mia apaqanatismenh kyttarikh grammh me ena megalo ariqmo ychlhs poiothtas megakaryokyttarwn --prodromwn kyttarwn poy ejelissontai se aimopetalia--, apo embryonika kyttara poy mporoyn na anaptyssontai ep' aoriston kai na diaforopoioyntai se mia poikilia kyttarikwn typwn sto swma.

    Kataferan na dhmioyrghsoyn mia kyttarikh grammh poy allaje poreia se orismena gonidia wste na paragagoyn leitoyrgika aimopetalia. Sth synexeia dokimasan th leitoyrgikothta twn kallierghmenwn aimopetaliwn egxyontas ta se pontikia kai epibebaiwsan oti eixan thn idia diarkeia zwhs me ta anqrwpina aimopetalia poy egxyontai se pontikia.


    Athens News Agency: News in ASCII Greek Directory - Previous Article - Next Article
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