An international research team led by the Hong Kong University of Science and Technology (HKUST) has reportedly developed a groundbreaking blood test for the early detection of Alzheimer’s disease (AD) and mild cognitive impairment (MCI) with remarkable accuracy rates. Key features: Unlike current blood tests that focus on a single biomarker to determine brain pathology, the new test measures the levels of 21 proteins in multiple AD-associated biological pathways, allowing for a more accurate assessment and monitoring of disease progression.