FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to field of biotechnology, namely to novel tetrapeptides, representing Acetyl-(D-Lys)-Lys-Arg-Arg-amide; Acetyl-Lys-(D-Lys)-Arg-Arg-amide; Acetyl-Lys-Lys-(D-Arg)-Arg-amide; Acetyl-Lys-Lys-Arg-(D-Arg)-amide; Acetyl-(D-Lys)-Lys-(D-Arg)-Arg-amide; Acetyl-Lys-(D-Lys)-(D-Arg)-Arg-amide; Acetyl-Lys-(NMe-Lys)-Arg-Arg-amide; Acetyl-Lys-Lys-(NMe-Arg)-Arg-amide; Acetyl-(D-Lys)-(D-Lys)-(D-Arg)-(D-Arg)-amide; Acetyl-(D-Arg)-(D-Arg)-(D-Lys)-(D-Lys)-amide, which possess cerebroprotective and antiamnestic activity.
EFFECT: claimed peptides produce stimulating impact on cholinergic processes in brain, are of low toxicity and are promising for application in medical practice as active component of medications.
11 cl, 5 tbl, 5 ex
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