Abstract:
:Acute lung injury (ALI) is characterized by alveolar edema and uncontrolled neutrophil migration to the lung, and no specific therapy is still available. Ellagic acid, a compound present in several fruits and medicinal plants, has shown anti-inflammatory activity in several experimental disease models. We used the nonlethal acid aspiration model of ALI in mice to determine whether preventive or therapeutic administration of ellagic acid (10 mg/kg; oral route) could interfere with the development or establishment of ALI inflammation. Dexamethasone (1 mg/kg; subcutaneous route) was used as a positive control. In both preventive and therapeutic treatments, ellagic acid reduced the vascular permeability changes and neutrophil recruitment to the bronchoalveolar lavage fluid (BALF) and to lung compared to the vehicle. In addition, the ellagic acid accelerated the resolution for lung neutrophilia. Moreover, ellagic acid reduced the COX-2-induced exacerbation of inflammation. These results were similar to the dexamethasone. However, while the anti-inflammatory effects of dexamethasone treatment were due to the reduced activation of NF- κ B and AP-1, the ellagic acid treatment led to reduced BALF levels of IL-6 and increased levels of IL-10. In addition, dexamethasone treatment reduced IL-1 β. Together, these findings identify ellagic acid as a potential therapeutic agent for ALI-associated inflammation.
journal_name
Mediators Inflammjournal_title
Mediators of inflammationauthors
Cornélio Favarin D,Martins Teixeira M,Lemos de Andrade E,de Freitas Alves C,Lazo Chica JE,Artério Sorgi C,Faccioli LH,Paula Rogerio Adoi
10.1155/2013/164202subject
Has Abstractpub_date
2013-01-01 00:00:00pages
164202eissn
0962-9351issn
1466-1861journal_volume
2013pub_type
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