The most in-depth analysis of human brain tissue ever done in Alzheimer's disease has found evidence for the controversial theory that viruses play a role in the condition. If true, it could mean that some instances of Alzheimer's might be treated with anti-viral drugs. Alzheimer's is the most common cause of dementia, affecting some 47 million people worldwide.
Alzheimer's disease has no cure, but getting a diagnosis as quickly as possible can allow patients to start symptom-delaying drugs. The problem with getting that diagnosis, though, is that the early stages of Alzheimer's can look a lot like mild cognitive impairment, which may or may not progress into Alzheimer's.
Out of the total number, 48 were scans of people with the disease, while 48 were scans of people who suffered from mild cognitive impairment and eventually developed full-blown Alzheimer's. The AI was able to diagnose Alzheimer's 86 percent of the time. More importantly, it was able to detect mild cognitive impairment 84 percent of the time, making it a potentially effective tool for early diagnosis. With more samples and further development, though, the AI could become more accurate until it's reliable enough to be used as a non-invasive early detection system.