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Aplastisk anemi: Årsak

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Gjennomsnittlig levetid for normale røde blodceller er ca. 120 dager. Ødeleggelse av stamceller i beinmargen gjør at perifere blodceller ikke blir erstattet når de er "utbrukte". Ødeleggelsen kan ha en rekke årsaker. Men i opptil 50 prosent av tilfellene er årsaken ukjent. Det er antatt at autoimmune prosesser, hvor immunapparatet angriper egne celler, spiller en avgjørende rolle. Denne reaksjonen kan være utløst av en virusinfeksjon, strålebehandling, medikamenter, ulike giftstoffer. Andre sykdommer som synes å disponere for tilstanden, er systemisk lupus erythematosus, hepatitt og ulike infeksjoner.

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Dette dokumentet er basert på det profesjonelle dokumentet Aplastisk anemi . Referanselisten for dette dokumentet vises nedenfor

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