Vérvizsgálat Alzheimer-kórra?

Szemlézte: Pöltz Ágnes

2018.02.02. 15:47

A demenciáról

HVG

Új vérvizsgálatot fejlesztettek ki japán és ausztrál kutatók, mellyel az Alzheimer-kórral és az elbutulással kapcsolatos ártalmas fehérje kimutatható - írta a BBC News. 

A Nature tudományos lap aktuális számában közölt tanulmány szerint az új módszer 90 százalékos pontossággal működött, akár egészséges embereken, akár romló memóriájú betegeknél, akár Alzheimer-kórosoknál végezték el a vérvizsgálatot. Szakértők szerint a tesztelés korai szakaszban van, ám az eredmények "nagyon ígéretesek".

Az Alzheimer-kór évekkel a memóriavesztés jelentkezése előtt elkezdődik. A gyógyítás kulcsa az lesz, ha még az agysejtek visszafordíthatatlan pusztulása előtt el lehet kezdeni a kezelést, ezért folyik sok kutatás a kórt korán kimutató vizsgálatokról.

A tesztek egyik útja, hogy kimutatják a betegség során az agyban felhalmozódó káros fehérjét, a béta-amiloidot. A fehérje agyi képalkotó eljárások felvételein is látható, de azok drágák és nehézkesek.

Az új vérvizsgálat a vérbe jutó amiloidtöredékek után kutat. A töredékek típusainak koncentrációjából a tudósok pontosan meg tudják állapítani az agyban lerakódott béta-amiloid mennyiségét.

"Ez az első alkalom, hogy egy kutatócsoport kapcsolatot mutatott ki a vér és az agyi folyadék amiloidszintje között" - hangsúlyozta Abdul Hye, King's College London tudósa.

Az Alzheimer-kórnak jelenleg nincs gyógymódja, ezért az új vérvizsgálatnak egyelőre a klinikai kutatásokban lehet majd hasznát venni.

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