Abstract
In this study, the antipruritic effect of the methanol extract of Ganoderma lucidum (MEGL) was studied in mice. Oral administration of MEGL (10-1000mg/kg) produced a dose-dependent inhibition of scratching, an itch-related response, induced by intradermal 5-hydroxytryptamine (5-HT) (100nmol/site), α-methyl-5-HT (100nmol/site), and proteinase-activated receptor-2 (PAR2)-activating peptide SLIGRL-NH2 (50nmol/site). However, MEGL (100-1000mg/kg) did not inhibit the scratching induced by histamine (100nmol/site), substance P (100nmol/site), and compound 48/80 (10 μg/site). These results raise the possibility that MEGL is effective against pruritus mediated by proteinases and 5-HT and that primary afferents expressing PAR2 and 5-HT2A receptors are the sites of its action.
Original language | English |
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Pages (from-to) | 909-911 |
Number of pages | 3 |
Journal | Biological and Pharmaceutical Bulletin |
Volume | 33 |
Issue number | 5 |
DOIs | |
State | Published - 2010 |
Keywords
- Ganoderma lucidum
- Itch
- Proteinase-activated receptor
- Scratch
- Serotonin
ASJC Scopus subject areas
- Pharmacology
- Pharmaceutical Science