Linked Life Data

21566246

Source:http://linkedlifedata.com/resource/pubmed/id/21566246

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2011-5-13
pubmed:abstractText
The aim of this study was to investigate the effects of wild ginger (Costus speciosus (Koen) Smith, Costaceae) rhizome extract on uterine contractility. We particularly examined the effects on spontaneous phasic contractions and the mechanisms whereby it exerts its effects. Wild ginger rhizomes were ethanolic extracted and their constituents analyzed. Isometric force was measured in strips of longitudinal myometrium and the effects of the extract studied. The extract (10 mg/100 mL) increased spontaneous contractions. The amplitude and frequency of the phasic contraction were significantly increased along with basal tension. Force produced in the presence of the extract was abolished by inhibition of l-type calcium channels or myosin light chain kinase (MLCK). The actions of the extract were not blocked by the estrogen receptor blocker, fulvestrant. Although significant amounts of diosgenin were present in the extract, we found that, depending upon its concentration, diosgenin had either no effect or was inhibitory on force. Interestingly, the extract induced significant amounts of force in the absence of extracellular calcium, which could be blocked by inhibition of the sarcoplasmic reticulum calcium-ATPase (SERCA), but not fulvestrant. We conclude that wild ginger rhizome extract stimulates phasic activity in rat uterus. Our data suggest that the uterotonic effect is due to nonestrogenic effects and not those of diosgenin. Wild ginger was able to increase contraction via calcium entry on l-type calcium channels and sarcoplasmic reticulum (SR) calcium release. We suggest that wild ginger rhizome extract may be a useful uterine stimulant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1933-7205
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
516-24
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
The effects of wild ginger (Costus speciosus (Koen) Smith) rhizome extract and diosgenin on rat uterine contractions.
pubmed:affiliation
Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't