Scientists Develop Detection of Alzheimer’s Disease Blood Test

“With the advancement of ultrasensitive blood-based protein detection technology, we have developed a simple, noninvasive, and accurate diagnostic solution for AD, which will greatly facilitate population-scale screening and staging of the disease,” said Prof. Nancy Ip, Morningside Professor of Life Science and the Director of the State Key Laboratory of Molecular Neuroscience at HKUST.

The work was conducted in collaboration with researchers at University College London and clinicians in local hospitals including the Prince of Wales Hospital and Queen Elizabeth Hospital. The discovery was made using the proximity extension assay (PEA) – a cutting-edge ultrasensitive and high-throughput protein measurement technology, to examine the levels of over 1,000 proteins in the plasma of AD patients in Hong Kong. 

As the most comprehensive study of blood proteins in AD patients to date, the work has recently been published in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association, and has also been featured and actively discussed on different scholarly exchange platforms on AD research such as Alzforum.  

AD, which affects over 50 million people worldwide, involves the dysfunction and loss of brain cells. Its symptoms include progressive memory loss as well as impaired movement, reasoning, and judgment. While patients often only seek medical attention and are diagnosed when they have memory problems, AD affects the brain at least 10-20 years before symptoms appear. 

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