Life Sciences & Medicine Active Updated Jul 7, 2026
Researchers are attacking Alzheimer's from several directions at once: the biology of how it spreads, drugs that reprogram the brain's immune cells, and blood tests that could catch it years early.
Jul 7, 2026 Latest
Mass General Brigham researchers confirmed for the first time in humans that the BCG tuberculosis vaccine can cross the blood-brain barrier into cerebrospinal fluid. In healthy older adults without existing Alzheimer's pathology, BCG shifted amyloid-beta levels downward in cerebrospinal fluid while raising them in the bloodstream, suggesting the vaccine helped push the protein out of the central nervous system. The protective shift was absent in participants who already had established Alzheimer's biomarkers, indicating timing is critical.
Jul 2, 2026
Scientists identified a set of circulating RNA molecules in the blood that flagged Alzheimer's onset two to four years before symptoms appeared.
Jun 30, 2026
A University of Utah team showed Alzheimer's spreads tau using the brain's own transport system via the Arc protein, and that blocking Arc cut the spread by about 99 percent in mice.
Jun 20, 2026
Researchers reported a molecule that reprograms the brain's own immune cells, the microglia, to restore their protective function against Alzheimer's damage.
Jun 18, 2026
A study from Niigata University found that APP, the protein most often blamed for Alzheimer's, also acts as a cellular cleaner that protects neurons, complicating the simple plaque story.
The checkable promises in this story, tracked until they are kept or broken.
Promising Alzheimer's drugs can slow progression when started early, but the infrastructure for population-scale screening does not yet exist.
Reporting in the Today Got Better brief
several promising Alzheimer's drugs have shown they can slow progression when started early, but the clinical infrastructure for population-scale screening does not exist yet
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