Key points from article :
Higher levels of amyloid-beta in blood may be a key indicator of cardiovascular disease.
Existence of a common link between Alzheimer's and heart diseases.
Blood samples analysed from more than 6,600 patients from nine countries.
Results show patients could be divided into high and low risk categories of heart disease.
This is by basing it on their amyloid-beta levels.
Blood test could be added to GRACE score, to assess heart attack risks.
To focus on clinical trials in the future to predict risks and guide treatment plans.
Research by Newcastle University scientists.
Published in th Journal of the American College of Cardiology.