Linked Life Data

15612368

Source:http://linkedlifedata.com/resource/pubmed/id/15612368

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-12-22
pubmed:abstractText
Prostaglandins of the E series have been shown to be effective inducers of bone formation in vivo. In this study, the effects of PGE2 were evaluated in vivo using subcutaneous administration (3 mg/kg/d for 25 days) to ovariectomized rats or local application in the marrow cavity of tibiae of rats using biodegradable implants (0.13, 1.4 and 32 microg released over 8 days). Systemic treatment of rats with PGE2 stimulated cancellous bone formation in the metaphysis of the proximal tibiae as well as endocortical bone formation and de novo trabecular bone formation in the marrow cavity. Local delivery of PGE2 increased cancellous bone volume in the secondary spongiosa and cortical thickness (at 32 microg). Comparisons of prostanoid effects in vitro, in a bone-derived cell line, showed that PGF2alpha was a better stimulator of DNA synthesis than PGE2. PGF2alpha increased the steady state levels of IGF-I receptor mRNA while PGE2 increased IGF-I expression. Although the mechanism of bone formation by PGE2 is not known at this time, it is clear that PGE2 has powerful local anabolic effects on bone formation in vivo possibly by mediating responses to signals such as changes in mechanical force.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-8207
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
279-82
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
The role of prostaglandins in bone formation.
pubmed:affiliation
Department of Bone Biology and Osteoporosis Research, Merck Research Laboratories, West Point, Pennsylvania 19486, USA.
pubmed:publicationType
Journal Article