Topic
Chronic inflammatory and stress-protein signaling in the brain's extracellular environment linked to age-related dysfunction.
University of Birmingham researchers report in Brain that blocking the P2X7 receptor halted inflammatory cytokine release in living human brain slices. That makes existing P2X7 drugs fair candidates for brain-disease trials, though the evidence so far comes from tissue kept alive outside the body.
Reality
McMaster University researchers report that one flu or COVID infection sped motor decline in animal models of ALS. The work points to respiratory infection as an accelerant of the disease that treatment can blunt, but so far every result comes from animals.
Reality
UC San Diego researchers report that catestatin, an endogenous piece of chromogranin A, lowered amyloid, tau and neuroinflammation in mice while improving memory and motor scores. Which of those effects drives the others is still open.
Reality
Lige Leng's team at Xiamen University deleted the protein in young mice and delivered it back into 20-month-old ones, a pairing that separates a driver of aging from a marker. The D-serine arm covered cognition only.
Reality
Systemic TIMP2 injections moved aged mouse microglia out of pro-inflammatory states and restored debris clearance. The press material omits dose, journal, and any cognitive readout.
Reality