Linked Life Data

15964665

Source:http://linkedlifedata.com/resource/pubmed/id/15964665

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-7-11
pubmed:abstractText
A combined real-time PCR/immunohistochemistry study was carried out to investigate whether P2X(7) receptors, known to induce apoptosis and necrosis, may be causally related to the process of retinal degeneration in BALBCrds mice. In the retinae of BALBCrds mice, P2X(7) receptor-mRNA was the highest at an age of 20-40 days, and declined afterwards. At the same time, the P2X(7) receptor-message was constantly low in the retina of control BALBC mice until postnatal day 100. The receptor-mRNA in total brain tissue of both strains of mice was comparable with that of BALBCrds retinae. Double immunofluorescence in combination with laser scanning microscopy was used to study the distribution of P2X(7) receptor-immunoreactivity (IR) on neurons and different glial cell types of the retina. An exclusively neuronal localization of P2X(7)-IR in the ganglion cell layer was found by using either anti-neuronal nuclei or microtubule associated protein-2 as neuronal markers. There was a slight age-dependent decrease in the abundance of neuronal P2X(7)-IR both in BALBCrds or BALBC mice. P2X(7)-IR failed to co-localize with any of the non-neuronal markers used to stain microglial or Müller glial cells. No P2X(7) receptor-IR was found in the retinal ganglion cell layer of P2X(7)(-/-) animals, when compared with the control littermates. Hence, we suggest that, in BALBCrds mice, an early up-regulation of neuronal P2X(7) receptors may cause injury of retinal neurons and thereby functionally contribute to the retinal damage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0197-0186
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
235-42
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:15964665-Aging, pubmed-meshheading:15964665-Animals, pubmed-meshheading:15964665-Biological Markers, pubmed-meshheading:15964665-Disease Models, Animal, pubmed-meshheading:15964665-Down-Regulation, pubmed-meshheading:15964665-Female, pubmed-meshheading:15964665-Male, pubmed-meshheading:15964665-Mice, pubmed-meshheading:15964665-Mice, Inbred BALB C, pubmed-meshheading:15964665-Mice, Neurologic Mutants, pubmed-meshheading:15964665-Microtubule-Associated Proteins, pubmed-meshheading:15964665-Nerve Degeneration, pubmed-meshheading:15964665-Nerve Tissue Proteins, pubmed-meshheading:15964665-Neuroglia, pubmed-meshheading:15964665-Nuclear Proteins, pubmed-meshheading:15964665-RNA, Messenger, pubmed-meshheading:15964665-Receptors, Purinergic P2, pubmed-meshheading:15964665-Receptors, Purinergic P2X7, pubmed-meshheading:15964665-Retina, pubmed-meshheading:15964665-Retinal Degeneration, pubmed-meshheading:15964665-Retinal Ganglion Cells, pubmed-meshheading:15964665-Up-Regulation
pubmed:year
2005
pubmed:articleTitle
P2X(7) receptor-mRNA and -protein in the mouse retina; changes during retinal degeneration in BALBCrds mice.
pubmed:affiliation
Rudolf-Boehm-lnstitute of Pharmacology and Toxicology, University of Leipzig, D-04107 Leipzig, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't