Linked Life Data

6713480

Source:http://linkedlifedata.com/resource/pubmed/id/6713480

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-6-18
pubmed:abstractText
To examine the selective permeability of the nephrons of lower vertebrates, the permeability of the glomerulus in the kidney of an arctic lamprey, Entosphenus japonicus (Martens), to native anionic ferritin or cationized ferritin was studied by observing the distribution of ionized anionic groups in renal tissues. The cationized ferritin molecules injected into the dorsal aorta penetrated rapidly into the glomerular basement membrane layer through fenestrae present in the capillary endothelium and were subsequently excreted into the urinary spaces via the interstices between foot processes of the visceral epithelial cells. Native anionic ferritin, on the other hand, passed only minimally through the capillary wall. Cytochemical staining of fixed tissue or perfusion of the kidney in situ with cationic cacodylate-iron colloid revealed that the ionized anionic groups of acid mucopolysaccharides were distributed on both the luminal and abluminal surfaces of endothelial cells, and in the thick fibrous lamina rara interna of the glomerular basement membrane; they were especially dense on the surfaces of visceral epithelial cells and their foot processes. These results suggest that the mesonephric glomerulus of the arctic lamprey possesses a functionally well developed anionic barrier system comparable to that of the mammalian metanephric glomerulus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
235
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
491-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
The anionic barrier system in the mesonephric renal glomerulus of the arctic lamprey, Entosphenus japonicus (Martens) (Cyclostomata).
pubmed:publicationType
Journal Article