Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1992-9-21
pubmed:abstractText
The temporal and spatial distribution of the basement membrane component laminin was examined in vivo in developing rat hearts at 11.5 and 15 days of embryonic development (ED), and in neonates and adults, by pre-embedding ultrastructural immunocytochemistry. In addition, the patterns observed at 11.5 days ED were compared to the distribution of laminin in embryos maintained in whole-embryo culture. At 11.5 days ED laminin was localized in punctate patches on the surface of the plasma membrane, with large gaps between areas of staining. The development of myocytes and localization of laminin in the whole embryo-cultured embryos was similar to that found in the in vivo embryos. At 15 days ED, laminin localization was limited to distinct patches of developing extracellular matrix material associated with the sarcolemma. Gaps between areas of localization were shorter than in the 11.5-day hearts. In neonates, distribution of laminin localization was more extensive with fewer gaps and was associated with the developing basement membrane. In adult hearts, laminin was localized along the entire length of the basement membrane and was heaviest in areas of morphological specialization, such as Z-bands, where collagen bundles contacted the sarcolemma.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0022-1554
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1373-81
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Ultrastructural localization of laminin on in vivo embryonic, neonatal, and adult rat cardiac myocytes and in early rat embryos raised in whole-embryo culture.
pubmed:affiliation
Department of Developmental Biology and Anatomy, School of Medicine, University of South Carolina, Columbia 29208.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.