Article Publish Status: FREE
Abstract Title:

Antihyperalgesic activity of verbascoside in two models of neuropathic pain.

Abstract Source:

J Pharm Pharmacol. 2011 Apr ;63(4):594-601. Epub 2011 Mar 8. PMID: 21401613

Abstract Author(s):

Benedetta Isacchi, Romina Iacopi, Maria Camilla Bergonzi, Carla Ghelardini, Nicoletta Galeotti, Monica Norcini, Elisa Vivoli, Franco Francesco Vincieri, Anna Rita Bilia

Article Affiliation:

Benedetta Isacchi


OBJECTIVES: This study reports on the rapid isolation of verbascoside from Lippia citriodora H.B.K. (Verbenaceae), an inexpensive and widespread source, and the evaluation of its antihyperalgesic activity.

METHODS: Isolation of verbascoside was achieved by size exclusion chromatography with Sephadex LH-20 eluting with 50% EtOH, which is proposed as a fast and efficient method of separation.

KEY FINDINGS: The antihyperalgesic activity of verbascoside was tested by in-vivo assay using the paw-pressure test in two animal models of neuropathic pain: a peripheral mononeuropathy produced either by a chronic constriction injury of the sciatic nerve (CCI) or by an intra-articular injection of sodium monoiodoacetate (MIA).

CONCLUSIONS: Verbascoside administered intraperitoneally at a dose of 100 mg/kg reverted the mechanical hyperalgesia in both CCI and MIA treated rats, as evaluated in the paw-pressure test. Verbascoside was also effective against mechanical hyperalgesia after oral administration at doses of 300 and 600 mg/kg.

Study Type : Animal Study

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