Linked Life Data

12951092

Source:http://linkedlifedata.com/resource/pubmed/id/12951092

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
19
pubmed:dateCreated
2003-9-2
pubmed:abstractText
The 80% aqueous acetone extract of the rhizomes of Alpinia galanga was found to inhibit release of beta-hexosaminidase, as a marker of antigen-IgE-mediated degranulation in RBL-2H3 cells. Nine known phenylpropanoids and p-hydroxybenzaldehyde were isolated from the extract. Among them, 1'S-1'-acetoxychavicol acetate and 1'S-1'-acetoxyeugenol acetate exhibited potent inhibitory activity with IC(50) values of 15 and 19 microM. From the effects of various related compounds, both the 1'- and 4-acetoxyl groups of 1'S-1'-acetoxychavicol acetate and 1'S-1'-acetoxyeugenol acetate were essential for their strong activity, and the 2'-3' double bond enhanced the activity. In addition, 1'S-1'-acetoxychavicol acetate and 1'S-1'-acetoxyeugenol acetate inhibited ear passive cutaneous anaphylaxis reactions in mice and the antigen-IgE-mediated TNF-alpha and IL-4 production, both of which participate in the late phase of type I allergic reactions, in RBL-2H3 cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0960-894X
pubmed:author
pubmed:issnType
Print
pubmed:day
6
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3197-202
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Antiallergic principles from Alpinia galanga: structural requirements of phenylpropanoids for inhibition of degranulation and release of TNF-alpha and IL-4 in RBL-2H3 cells.
pubmed:affiliation
Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't