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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1995-3-15
pubmed:abstractText
We studied DNA synthesis in rats with nephrotoxic serum nephritis (NTSN), a model of a glomerular disease, using in vivo labelling with 5-bromo-2'-deoxyuridine (BrdUrd). NTSN was induced by intravenous injection of subnephritogenic doses of rabbit anti-rat GBM antiserum into male Sprague-Dawley rats. Each rat received a single injection of the DNA precursor, 3H-thymidine analog (BrdUrd), ten min before the tissues were removed. For immunocytochemical detection of DNA synthesis, semithin sections were prepared at various intervals (4 h up to 84 days) after pulse labelling. Using a monoclonal anti-BrdUrd antibody, BrdUrd-incorporated DNA-synthesizing cells were noted in the proliferative zone of the gastric mucosa at all times. In NTSN, BrdUd incorporated DNA-synthesizing cells were detected in the glomeruli from 4h through 28 days after inoculation, with the peak occurring at days 2 to 4. On those days, up to half of the glomeruli showed BrdUrd-incorporated cells, with 8 cells per glomerulus as a maximum. From days 7 to 28, few glomerular cells incorporated BrdUrd, and none did so after day 28. The majority of the BrdUrd-incorporated cells were endothelial. These results suggest that active DNA synthesis by glomerular endothelial cells occurs during a short period of the heterologous phase in this model, and that the lack of mesangial cell proliferation might explain the self-limiting nature of this model. By using in vivo labelling with BrdUrd, we were also able to easily and accurately detect active DNA synthesis without consideration of the normal cell renewal.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0385-2385
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1221-7
pubmed:dateRevised
2011-8-1
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Immunocytochemical detection of active DNA synthesis by in vivo labelling with anti-bromodeoxyuridine antibodies in glomeruli of rats with nephrotoxic serum nephritis.
pubmed:affiliation
Department of Medicine (II), National Defense Medical College, Saitama, Japan.
pubmed:publicationType
Journal Article