Phytochemical screening, antinociceptive and anti-inflammatory activities of Chrysopogon zizanioides essential oil
Rev. bras. farmacogn
; 22(2): 443-450, Mar.-Apr. 2012. graf, tab
Article
in En
| LILACS
| ID: lil-624674
Responsible library:
BR1.1
ABSTRACT
Chrysopogon zizanioides (L.) Roberty, Poaceae, is a plant widely used in northeast Brazil in folk medicine for the treatment of various pathological conditions, including inflammatory pain. The present study evaluated the antinociceptive and anti-inflammatory effects of C. zizanioides essential oil (EO) in rodents. EO was further characterized by GC/MS. The major components of EO were identified as khusimol (19.57%), E-isovalencenol (13.24%), α-vetivone (5.25%), β-vetivone (4.87%) and hydroxy-valencene (4.64%). Following intraperitoneal injection (i.p.), EO at 50 and 100 mg/kg significantly reduced the number of writhes (51.9 and 64.9%, respectively) and the number of paw licks during phase 2 (56.7 and 86.2%, respectively) of a formalin model when compared to control group animals. However, EO-treated mice were ineffective at all doses in hot-plate and rota-rod tests. The EO inhibited the carrageenan-induced leukocyte migration to the peritoneal cavity in a dose-dependent manner (34.7, 35.4, and 62.5% at doses of 25, 50 and 100 mg/kg, respectively). In the paw edema test, the EO (100 mg/kg) inhibited all three phases of the edema equally well, suggesting that the EO has a non-selective inhibitory effect on the release or actions of these mediators. Our results suggest possible antinociceptive and anti-inflammatory effects of the EO.
Full text:
1
Database:
LILACS
Type of study:
Diagnostic_studies
/
Screening_studies
Language:
En
Journal:
Braz. j. pharmacogn.
/
Brazilian journal of pharmacognosy
/
Rev. bras. farmacogn
/
Rev. bras. farmacogn. (Online)
/
Revista brasileira de farmacognosia (Impresso)
Year:
2012
Type:
Article
Affiliation country:
Brazil