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Forschungszentrum Jülich GmbH Wilhelm-Johnen-Straße 52428 Jülich, Germany http://www.fz-juelich.de
Contact Ms Angela Wenzik +49 2461 616048
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Forschungszentrum Jülich GmbH

Eiweißhülle schützt vor Gefäßverkalkung

Jülicher und Aachener Forscher erklären Stoffwechselvorgang im Blut

(PresseBox) (Jülich, )
Wissenschaftler des Forschungszentrums Jülich und der RWTH Aachen beobachteten erstmals experimentell, wie Eiweißstoffe im Blutplasma Gefäßverkalkung
verhindern: Das Eiweiß umhüllt das Mineral Kalziumphosphat im Blut wie eine Schutzschicht. Dadurch können sich die winzigen Teilchen nicht unerwünscht zu größeren Kalkablagerungen zusammenschließen, berichten die Forscher in der aktuellen Ausgabe der Fachzeitschrift „Biointerphases“ (Vol. 2, Nr. 1, März 2007).

Jeder Hobbykoch, der schon einmal Karamell hergestellt hat, kennt das Phänomen: Zucker löst sich nur bis zu einer bestimmten Menge im Wasser. Wenn man mehr zugibt, setzt er sich ab. Der Physiker spricht dann von einer „gesättigten Lösung“. Eine gesättigte Lösung ist auch das Blut,
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