β-Amyloid (1-43)(human) is more prone to aggregation and has higher toxic properties than the long-known Aβ1-42. β-Amyloid (1-43)(human) shows a correlation with both sAPPα and sAPPβ. β-Amyloid (1-43)(human) could be considered an added Alzheimer's disease (AD) biomarker together with the others already in use.

Azetirelin, as a TRH analog, has a more potent effect than TRH on the central nervous system.

Copeptin (rat) is a polypeptide that can be found by peptide screening. Peptide screening is a research tool that pools active peptides primarily by immunoassay. Peptide screening can be used for protein interaction, functional analysis, epitope screening, especially in the field of agent research and development.