Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1996-3-1
pubmed:abstractText
Renal enlargement is a characteristic feature of diabetes in humans and experimental animals that may predict subsequent renal disease. The biological processes involved in diabetes-related kidney growth are complex and involve changes in extracellular matrix, cell hypertrophy and hyperplasia. Secreted protein acidic and rich in cysteine (SPARC) is an extracellular matrix protein with anti-adhesive, antiproliferative and matrix remodeling properties. We examined kidney SPARC gene expression and protein content in early experimental diabetes. By Northern blot analysis, kidney SPARC mRNA fell in diabetic animals at day 1 to 40 +/- 15% of controls levels (mean +/- SEM, P < 0.01) to 42% +/- 11% on day 3 (P < 0.01) with a further decrease at day 7 to 29 +/- 7% (P < 0.001). In situ hybridization demonstrated SPARC mRNA within glomeruli renal interstitial cells and in blood vessels but not in tubular epithelial cells. SPARC mRNA was decreased in diabetic rats within a change in the pattern of distribution. By immunofluorescence, SPARC protein was detected in glomeruli and tubular basement membrane. Diabetes was associated with a decrease in SPARC protein at both sites. These data demonstrate that the onset of diabetes-related kidney growth is associated with a reduction in SPARC mRNA and protein. In the context of the known biological actions of SPARC, the findings in the present study implicate this matrix protein in the pathogenesis of diabetes related kidney growth.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0085-2538
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1216-25
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
SPARC gene expression is reduced in early diabetes-related kidney growth.
pubmed:affiliation
Endocrinology Unit, Austin Hospital, Victoria, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't