A scientist in a lab analyzing a blood sample for early Alzheimer's detection, with brain scan overlays.

Blodprov kan avslöja alzheimer långt i förväg

20 juni 2026

Rapporterad av AI

Bild genererad av AI

En ny studie visar att blodprov kan upptäcka tecken på alzheimer flera år innan sjukdomen bryter ut. Amerikanska forskare publicerade resultaten i Lancet.

Amerikanska forskare har i en studie publicerad i Lancet undersökt blodprover från 1 350 personer utan demenssjukdom med medelålder 61 år. Nivåer av proteinet fosforylerat tau visade sig kunna öka redan i 60-årsåldern.

86 deltagare hade förhöjda nivåer och presterade sämre på kognitiva tester. Dessa personer försämrades också snabbare vid uppföljning var femte år.

Henrik Zetterberg vid Göteborgs universitet säger att blodprovet är enklare än nuvarande metoder. Han betonar att bred testning saknar skäl i dag då effektiva behandlingar saknas i Sverige.

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19 juni 2026 07:18

Blodprov kan avslöja alzheimer långt i förväg

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