Dog brain (IMAGE) Eötvös Loránd University Caption New research measured an Alzheimer’s disease-associated peptide (Aβ42) in companion dog brains and found that higher abundance is associated with increased cognitive decline. (Eötvös Loránd University) Credit Photo: Kubinyi Usage Restrictions Credit must be given License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.