Linked Life Data

17142963

Source:http://linkedlifedata.com/resource/pubmed/id/17142963

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2006-12-4
pubmed:abstractText
This study investigated the protective effects of a group IIA secretory phospholipase A2 (sPLA2-IIA) inhibitor, ochnaflavone, on the progression of carbon tetrachloride (CCl4)-induced acute liver injury in rat liver microsomes in vitro. When rat liver was incubated at 37 degrees C in the presence of CCl4, the level of phosphatidylethanolamine (PE) degradation increased markedly compared with the control. The rat 14 kDa platelet PLA2 antibody, R377, suppressed the degradation of PE. Pretreating the microsome with ochnaflavone (2-16 microM) reduced the level of PE degradation in a dose dependent manner. In addition, p-bromophenacy bromide (p-BPB), which is a PLA2 inhibitor, also inhibited PE degradation. However, the inhibitory activity was weaker than that of ochnaflavone. Further investigation showed that ochnaflavone not only inhibited the purified rat platelet sPLA2 activity in a dose dependent manner with an IC50 value of 3.45 microM, when arachidonyl PE was used as a substrate, but also inhibited lipid peroxidation in a dose dependent manner with an IC50 value of 7.16 microM. This result suggests that ochnaflavone prevents the progression of CCl4-induced PE hydrolysis by inhibiting the endogenous sPLA2 activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0918-6158
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2359-61
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Ochnaflavone, naturally occurring biflavonoid, inhibits phospholipase A2 dependent phosphatidylethanolamine degradation in a CCl4-induced rat liver microsome.
pubmed:affiliation
College of Pharmacy, Yeungnam University, Gyeongsan, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't