Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-8-27
pubmed:abstractText
Hyperforin, the major active constituent of St. John Wort (SJW) extract, affects several neurotransmitter systems in the brain putatively by modulation of the physical state of neuronal membranes. Accordingly, we tested the effects of SJW extract and of hyperforin on the properties of murine brain membrane fluidity. Oral administration of SJW extract and of hyperforin sodium salt results in significant hyperforin brain levels. Treatment of mice with hyperforin leads to decreased annular- and bulk fluidity and increased acyl-chain flexibility of brain membranes. All hyperforin related changes of membrane properties were significantly correlated with the corresponding hyperforin brain levels. Our data emphasises a membrane interaction of hyperforin that possibly contributes to its pharmacological effects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
367
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
139-43
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15331138-Administration, Oral, pubmed-meshheading:15331138-Animals, pubmed-meshheading:15331138-Anisotropy, pubmed-meshheading:15331138-Bicyclo Compounds, pubmed-meshheading:15331138-Brain, pubmed-meshheading:15331138-Brain Chemistry, pubmed-meshheading:15331138-Cell Membrane, pubmed-meshheading:15331138-Chromatography, Liquid, pubmed-meshheading:15331138-Diphenylhexatriene, pubmed-meshheading:15331138-Dose-Response Relationship, Drug, pubmed-meshheading:15331138-Female, pubmed-meshheading:15331138-Hypericum, pubmed-meshheading:15331138-Membrane Fluidity, pubmed-meshheading:15331138-Mice, pubmed-meshheading:15331138-Neurons, pubmed-meshheading:15331138-Phloroglucinol, pubmed-meshheading:15331138-Plant Extracts, pubmed-meshheading:15331138-Pyrenes, pubmed-meshheading:15331138-Terpenes
pubmed:year
2004
pubmed:articleTitle
Hyperforin modifies neuronal membrane properties in vivo.
pubmed:affiliation
Institute of Pharmacology, J.W. Goethe-University, Biocenter N260, Marie-Curie-Strasse 9, 60439 Frankfurt, Germany. g.p.eckert@em.uni-frankfurt.de
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't