Evaluation of anti-inflammatory potential of aqueous extract and polysaccharide fraction of Thuja occidentalis Linn. in mice.
Int J Biol Macromol
; 105(Pt 1): 1105-1116, 2017 Dec.
Article
en En
| MEDLINE
| ID: mdl-28751047
ABSTRACT
Inflammation is a protective reaction of the microcirculation. However, sustained inflammation can lead to undesired effects. Thuja occidentalis Linn has many pharmacological properties but has no anti-inflammatory activity described. Thus, this study aims evaluating the anti-inflammatory activity of the aqueous extract (AE) and the polysaccharide fraction (PLS) of T. occidentalis L. in mice. The results of our evaluations in various experimental models indicated that AE and PLS (3, 10, and 30mg/kg, i.p.) reduced (pË0.05) paw edema induced by carrageenan, dextran sulfate (DEX), compound 48/80, serotonin (5-HT), bradykinin (BK), histamine (HIST), and prostaglandin E2 (PGE2). Furthermore, it inhibited neutrophils recruitment; decreased MPO activity, tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels, vascular permeability, nitrite concentration, and MDA concentration; and maintained the GSH levels in the peritoneal exudate. The AE and PLS reduced neutrophil infiltration and cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) immunostaining in paw tissue. Treatment with the AE and PLS (300mg/kg) did not induce gastric toxicity. In conclusion, these results show that the AE and PLS reduced the inflammatory response by inhibiting vascular and cellular events, inhibiting pro-inflammatory cytokine production, and reducing oxidative stress. Furthermore, they did not induce gastric toxicity at high doses.
Palabras clave
Bradykinin (PubChem CID: 439201); Captopril (PubChem CID: 44093); Compound 48/80 (PubChem CID: 118797323); Cupressaceae; Cytokines; Dextran sulfate (PubChem CID: 4125253); Heparin (PubChem CID: 92044406); Histamine (PubChem CID: 4125253); Indomethacin (PubChem CID: 3715); Inflammation; Oxidative stress; Polysaccharide; Prostaglandin E2 (PGE2) (PubChem CID: 5280360); Serotonin (PubChem CID: 5202); λ-Carrageenan (PubChem CID: 91972149)
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Polisacáridos
/
Agua
/
Thuja
/
Antiinflamatorios
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Int J Biol Macromol
Año:
2017
Tipo del documento:
Article
País de afiliación:
Brasil