New research from the Keck School of Medicine at USC may have identified the earliest sign yet of Alzheimer's disease. According to the new study, adults can develop elevated levels of amyloid plaque in the brain up to 10 years before they experience any of the cognitive decline associated with Alzheimer's. Discovering these plaques so early could help certain patients take better preventive measures. The appearance of plaques suggests that the brain destruction associated with Alzheimer's disease can begin years before any symptoms are detected, but it also means that treatment can begin earlier, too. "This study is trying to support the concept that the disease starts before symptoms, which lays the groundwork for conducting early interventions," said Michael Donohue, lead author of the study, in a statement."We've
The absence of a certain chemical in the brain could be used as an early Alzheimer's test, new research suggests. Dopamine, which regulates movement, 'feeds' a region of the brain responsible for storing memories, known as the hippocampus. When the number of cells producing dopamine reduce, people's memories and abilities to learn new information suffers, which may put them at risk of dementia, according to researchers. Lead author Professor Annalena Venneri, from the University of Sheffield, said: 'The results point at a change which happens very early on, which might trigger Alzheimer's disease. 'More studies are necessary, but these findings could potentially lead to a new way of screening the elderly population for early signs of Alzheimer's disease.' Alzheimer's, which is the most common form of dementia, affects around 850,000 people in the UK.
Depending on the stories you read, artificial intelligence (AI) can be absolutely terrifying or downright hilarious (or both). Sometimes it can be lifesaving. Scientists are constantly discovering new ways this exciting technology can be used to improve our health and extend lifespans, whether that's software to detect skin cancer or a program that can pick the most viable embryo option for IVF treatment. Now, researchers are using AI scans to detect Alzheimer's almost a decade earlier than doctors making a diagnosis based on symptoms alone. Alzheimer's is the most common form of dementia, affecting over 5 million Americans.
An eye test could predict whether someone could have Alzheimer's disease years in advance, according to a recent study. Researchers from Cedars-Sinai and company NeuroVision Imaging found the disease affects the retina, which is the back of the eye, in a similar way to how it impacts the brain. Through this discovery, researchers conducted a noninvasive eye scan in an effort to detect key signs of Alzheimer's before patients began experiencing symptoms of the disease. The study, which was published Tuesday in JCI Insight, said a high definition eye scan was able to see the plaque in the retina, which correlated with the amount in the brain. The plaque is a buildup of toxic proteins called amyloid-beta deposits, which are key signs of Alzheimer's.