Although, it is very early these two articles could reference potentially major breakthroughs in Alzheimer’s disease:

A Simple Blood Test for Early Detection of Alzheimer’s Disease: 

https://neurosciencenews.com/blood-test-early-alzheimers-18828/

Success in Reversing Dementia in Mice Sets the Stage for Human Clinical Trials:

https://www.tohoku.ac.jp/en/press/eversing_dementia_stage_set_for_human_clinical_trials.html