Inhibition of β-amyloid toxicity by short peptides containing N-methyl amino acids
2004
: Single N-methyl amino acid-containing peptides related to the central hydrophobic region β16–20 (Lys-Leu-Val-Phe-Phe) of the β-amyloid protein are able to reduce the cytotoxicity of natural β1–42 in PC12 cell cultures. N-methyl phenylalanine analogs yield statistically significant increments in cell viability (Student's t-test < 0.01%) and are nontoxic in the same assay. These promising results indicate that these peptide molecules could be a starting point for the development of potential therapeutic compounds for the treatment of Alzheimer's disease.
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