Archives of Pharmacal Research

, 30:1599

Anti-asthmatic action of quercetin and rutin in conscious guinea-pigs challenged with aerosolized ovalbumin

Authors

  • Chan Hun Jung
    • Department: Division of Pathophysiology and Pharmacology, College of PharmacyChung-Ang University
  • Ji Yun Lee
    • Department: Division of Pathophysiology and Pharmacology, College of PharmacyChung-Ang University
  • Chul Hyung Cho
    • Department: Division of Pathophysiology and Pharmacology, College of PharmacyChung-Ang University
    • Department: Division of Pathophysiology and Pharmacology, College of PharmacyChung-Ang University
Article Drug efficacy and safety

DOI: 10.1007/BF02977330

Cite this article as:
Jung, C.H., Lee, J.Y., Cho, C.H. et al. Arch Pharm Res (2007) 30: 1599. doi:10.1007/BF02977330

Abstract

The effects of quercetin and rutin on the asthmatic responses were studied in ovalbumin (OA)-sensitized conscious guinea pigs challenged with aerosolized-OA. We measured the specific airway resistance (sRaw) in the double-chambered plethysmograph during the immediate-phase response (IAR) and late-phase response (LAR) at 3~10 min and 24 hr after OA challenge, respectively. We counted leukocytes in bronchoalveolar lavage fluid (BALF) using Wright’s stain, as well as in lung tissue fixed with 10% formalin and stained with H & E stain. Quercetin and rutin (7.5 mg/kg, p.o.) significantly and dose-dependently inhibited both sRaw on IAR (31.60 and 26.44%) and LAR (29.87 and 28.69%) but with less efficacy than dexam-ethasone (3 mg/kg) and salbutamol (0.3 mg/kg), which inhibited IAR by 36.71 and 69.45%, and LAR by 67.23 and 0%, respectively, Quercetin and rutin (15 mg/kg) also inhibited production of histamine, PLA2, and EPO, and recruitment of leukocytes, particularly neutrophils and eosinophils, during LAR. respectively. Dexamethasone (3 mg/kg) also significantly reduced the recruitment of neutrophils, eosinophils, and lymphocytes in BALF, and salbutamol (0.3 mg/kg) reduced neutrophils and eosinophils with lower activity than dexamethasone. These results indicate that quercetin and rutin may be useful in the treatment of IAR and LAR in asthma via inhibition of histamine release, PLA2, and EPO, and reduced recruitment of neutrophils and eosinophils into the lung.

Key words

QuercetinRutinAnti-asthmatic actionDouble-chambered plethysmographSpecific airway resistanceRecruitment of neutrophil and eosinophil

Abbreviations

BALF

Bronchoalveolar lavage fluid

BSA

Bovine serum albumin

BSS

Balanced salt solution

EOS

Eosinophils

H & E

Hematoxylin and eosin

HEPES, 4-(2-hydroxy-ethyl)-1-piperazineethanesulfonic acid

IAR

Immediate-phase asthmatic response

IgE, Immunoglobulin E

LAR

late-phase asthmatic response

LLAR

Late late-phase asthmatic responses

OA

Ovalbumin

PLA2

Phospholipase A2

PMN

Polymorphonuclear leukocytes

10-Pyrene PC

Pyrene-labeled phospholipids

sRaw

Specific airway resistance

Download to read the full article text

Copyright information

© The Pharmaceutical Society of Korea 2007