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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-4-14
pubmed:abstractText
Proanthocyanidins are naturally occurring compounds that are widely found in fruits, vegetables, nuts, seeds, flowers, and bark. We evaluated the immunomodulatory effects of proanthocyanidin-rich extract (PAE) from Pinus radiata bark in specific-pathogen-free White Leghorn chickens. Proliferation of peripheral blood mononuclear cells was significantly enhanced in chickens treated for 2 wk with 20 mg/kg of PAE. Proliferation of splenocytes and bursal cells was significantly enhanced in chickens treated for 5 wk with 5, 10, and 20 mg/kg of PAE. Thymocyte proliferation was significantly enhanced in chickens treated for 5 wk with 5 and 10 mg/kg of PAE. These effects were markedly enhanced by the presence of lipopolysaccharide, which acted on B cells responsible for humoral immunity, and concanavalin A, which acted directly on T cells involved in cell-mediated immunity. The PAE significantly promoted the expression of T helper 1 cytokine (interferon-?) and decreased the expression of T helper 2 cytokine (IL-6). Thus, P. radiata PAE has immunomodulatory effects in specific-pathogen-free White Leghorn chickens.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0032-5791
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
977-82
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Effect of proanthocyanidin-rich extract from Pinus radiata bark on immune response of specific-pathogen-free White Leghorn chickens.
pubmed:affiliation
Department of Veterinary Infectious Diseases, Chonbuk National University, Jeonju, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't