Abstract
The effects of ACTH4–10 fragment and its analog semax on nociception were examined on various animal models. ACTH4–10 in a dose of 0.5 mg/kg decreased nociception in rats during hindpaw compression test and in mice subjected to acetic acid writhing test. Lower doses of ACTH4–10 produced no analgesic effect. Semax (0.015–0.500 mg/kg) decreased pain sensitivity in all experimental models. Hence, the substitution of three C-terminal amino acid residues in ACTH4–10 for Pro-Gly-Pro sequence augmented the analgesic potency of the peptide after its peripheral injection.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 143, No. 1, pp. 8–12, January, 2007
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Ivanova, D.M., Levitskaya, N.G., Andreeva, L.A. et al. Comparative study of analgesic potency of ACTH4–10 fragment and its analog semax. Bull Exp Biol Med 143, 5–8 (2007). https://doi.org/10.1007/s10517-007-0002-5
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DOI: https://doi.org/10.1007/s10517-007-0002-5