Eines von vielen Zehntausend Bildern aus dem Allen Brain Atlas (ABA). Es illustriert die starke Expression des "Tyrosin-Hydroxylase"-Gens in den Neuronen der Substantia Nigra. Bei Parkinson-Patienten ist dieses Gehirnareal stark beschädigt. Dadurch fällt die Dopamin produzierende Tyrosin-Hydroxylase aus, was die für diese Krankheit typischen Symptome erzeugt. Der Bildauschnitt rechts zeigt -vergrößert- die Tyroxin-Hydroxylase-positiven Nervenzellen mit ihren charakteristischen Verästelungen.
Allen Brain Atlas
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