ArticleBulletin of experimental biology and medicine2024
Study of PT1 Peptide Analgesic and Anti-Inflammatory Activity on a Local Inflammation Model in Mice CD-1.
Article in Bulletin of experimental biology and medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
PT1 peptide isolated from the venom of spider Geolycosa sp. is a modulator of P2X3 receptors that play a role in the development of inflammation and the transmission of pain impulses. The anti-inflammatory and analgesic efficacy of the PT1 peptide was studied in a model of complete Freund's adjuvant-induced paw inflammation in CD-1 mice. The analgesic activity of PT1 peptide was maximum after intramuscular injection at a dose of 0.01 mg/kg, which surpassed the analgesic effect of diclofenac at a dose of 1 mg/kg. The anti-inflammatory activity was maximum after intramuscular injection at a dose of 0.0001 mg/kg; a decrease in paw thickness was observed as soon as 2 h after the administration of the PT1 peptide against the background of inflammation development. All tested doses of PT1 peptide showed high anti-inflammatory activity 4 and 24 h after administration. PT1 peptide at a dose of 0.01 mg/kg when injected intramuscularly simultaneously produced high anti-inflammatory and analgesic effects compared to other doses of the peptide. Increasing the dose of PT1 peptide led to a gradual decrease in its analgesic and anti-inflammatory activity; increasing the dose of intramuscular injection to 0.1 and 1 mg/kg is inappropriate.
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