Dysfunction of pyramidal neuron-PV interneuron circuits contributes to cognitive failure in Alzheimer's disease.

Increased excitation and decreased inhibition associated with abnormal neuronal morphology, aberrant ion channel properties, and synaptic dysfunction contribute to hyperexcitability in Alzheimer’s disease hiPSC-derived neuronal cultures and cerebral organoids.

Increased levels of brain Hebp1 starting from the presymptomatic stage of Alzheimer’s disease contributes to progressive neuronal loss by triggering mitochondrial-dependent apoptosis in neurons exposed to elevated heme.

Electrophysiology pinpoints brain function abnormalities in young people genetically at risk of developing Alzheimer's disease much later in life, supporting theories of initial hyperconnectivity driving eventual profound disconnection.

An internet-based cohort study of paired associate learning shows that a first-degree family history of dementia is associated with lowered performance, an effect modified by apolipoprotein E genotype and diabetes.

Amyloid-β oligomers associated with Alzheimer’s disease interact with dynein motors to impair retrograde transport of autophagic vesicles in neurons.

By binding to Fc gamma receptor IIb, amyloid beta induces a series of phosphorylation events that mediate the damaging effects of hyperphosphorylated tau proteins in Alzheimer's disease.

Somatically derived genomic mosaicism in the form of increased DNA content and APP copy number in single neurons plausibly has a function in sporadic Alzheimer’s disease and points to functions for single-neuron gene copy number changes.

Tau proteins can convert from an inert shape to a misfolded shape that seeds the growth of fibers that contribute to the pathology of Alzheimer's disease.

A protein called NPTX2 may be a useful marker of neural circuit defects in patients with Alzheimer's disease.