Protective effects of ethyl gallate and pentagalloylglucose, the active components of Qingwen Baidu Decoction, against lipopolysaccharide-induced acute lung injury in rats
| Autor: | Qi Zhang, Jing Nie, Qiang Li, Su Juan Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Lipopolysaccharides
Male 0301 basic medicine Lipopolysaccharide ethyl gallate Acute Lung Injury Active components Pharmaceutical Science Pulmonary Edema Ethyl gallate Decoction Qingwen baidu Pharmacology Lung injury Capillary Permeability Rats Sprague-Dawley 03 medical and health sciences chemistry.chemical_compound Gallic Acid Drug Discovery medicine Animals LUNG EDEMA Lung Original Research pentagalloylglucose Drug Design Development and Therapy medicine.diagnostic_test Chemistry Hydrolyzable Tannins Disease Models Animal 030104 developmental biology Bronchoalveolar lavage Neutrophil Infiltration Qingwen Baidu Decoction Drugs Chinese Herbal |
| Zdroj: | Drug Design, Development and Therapy |
| ISSN: | 1177-8881 |
| Popis: | Qi Zhang,1 Jing Nie,2 Su-Juan Chen,2 Qiang Li2 1Department of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350122, China; 2School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China Background: The aim of this study was to investigate the bioactive constituents of Qingwen Baidu Decoction (QBD) in a rat model of acute lung injury (ALI) induced by lipopolysaccharide (LPS). Our previous studies showed that ethyl gallate (EG) and pentagalloylglucose (PGG) were the active components of QBD for the treatment of ALI. Materials and methods: We isolated two compounds and identified the structures of them by nuclear magnetic resonance and mass spectrometer. Lung injury was induced by intratracheal instillation with LPS (5 mg/kg). Rats were randomly divided into six groups: Control group; LPS group; 5 mL/kg DEX + LPS group; 6.6 g/kg QBD extract + LPS group; 17.16 mg/kg PGG + LPS group; 7.26 mg/kg EG + LPS group. The effects of compounds on LPS-induced the number of total cells, neutrophils influx, protein leakage, W/D weight ratio and pulmonary histological changes were examined. Results: The results demonstrated that pretreatment with EG and PGG could notably inhibit lung edema and attenuate the pulmonary histological changes (P |
| Databáze: | OpenAIRE |
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