Amyloid-β (25-35) (Aβ (25-35)) is an 11-residue fragment of the Aβ protein that retains the physical and biological characteristics of the full length peptide. It forms fibrils that react to thioflavin T and Congo red and are organized in a cross-β arrangement of β-strands similar to Aβ (1-40) and Aβ (1-42) fibrils. Aggregated Aβ (25-35) decreases the viability of rat adrenal PC12 cells. It also decreases the viability of primary rat cortical neurons at concentrations ranging from 1 nM to 30 μM. In vivo, intracerebral injection of Aβ (25-35) (20 nmol) in rats induces lesions of neuronal and tissue loss. Aggregated Aβ (25-35) administered intracerebroventricularly to rats induces learning and memory impairments in the Y-maze, novel object recognition, and contextual fear conditioning tests.
β-Amyloid (22-35) is a 14-aa peptide, shows aggregates and induces neurotoxicity in the hippocampal cells. Beta amyloid (22-35) is a synthetic truncated fragment of beta-amyloid peptide.
β-Amyloid (1-42), rat TFA is a 42-aa peptide, shows the effects of cytotoxicity on acute hippocampal slices, and has been used in studies of alzheimer's disease.
Amyloid (1-42), rat is a polypeptide composed of 42 amino acids. It is toxic to hippocampal slices and can be used in the study of alzheimer's disease.
β-Amyloid (10-35), amide, is a chemical compound consisting of 26 amino acids, specifically residues 10-35 of the Aβ peptide. It serves as the primary constituent of amyloid plaques found in Alzheimer's disease.