In a study, published in the journal The Proceedings of the National Academy of Sciences, a molecule identified and synthesized by UCLA Health researchers was shown to restore cognitive functions in mice with symptoms of Alzheimer's disease by effectively jump-starting the brain's memory circuitry.
I'm not in this field, but I mean, this one seems like all the other headlines we've read about on this topic, only for them to be dead ends. Mouse models are notoriously fraught, especially in the Alzheimer's context.
Wake me up when they have treated humans in vivo.
I wouldn't call it a dead end. It's the kind of small discoveries that, when put together with all the past and future small discoveries, will eventually lead to progress.