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Cryo-EM structures of heparin-induced tau filaments differ from those observed in neurodegenerative disease, illustrating their structural versatility, and prompting questions about the relevance of in vitro amyloid models.

Modelling beta-amyloid deposition in bioengineered human vessels represents a notable advance to further investigate the role of the vasculature in Alzheimer's disease.

By using structural methods to screen compounds for their ability to interact with amyloid beta, researchers have identified small molecules that stabilize amyloid fibers and reduce the toxic effect of smaller aggregates on cells.

A novel Aβ-driven inhibitory mechanism on γ-secretases, which leads to substrate accumulation and reduced release of products, contributes to neurotoxicity by impairing γ-secretase signaling and might operate in Alzheimer’s disease.

Atomic structures of hIAPP fibrillar segments, determined using the cryo electron microscopy method MicroED, reveal that strong, stable intermolecular interactions are important features of cytotoxic amyloid proteins.

APPPS1 microglia express disease-associated proteomic signatures of Alzheimer's disease earlier, compared to the APP-KI, and these differences correlate with the levels of fibrillar Aβ and impaired microglial phagocytic function.

The Wnt antagonist DKK3 is a key regulator of excitatory and inhibitory synapses, and its downregulation in the hippocampus restores synaptic connectivity and memory in an Alzheimer's disease mouse model.

Ex vivo characterization of the interaction of human sperm with semen factors reveals that semen amyloids, previously discovered due to their ability to enhance HIV infection, serve a physiological function by promoting disposal of the defective sperm.

The disease-associated aggregation of polyglutamine begins in a single molecule with a specific structure.

CLR01 is a small molecule that could be an effective topical microbicide to eliminate HIV (and other enveloped viruses), and to antagonize host-encoded amyloid fibrils that promote HIV infection.