rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
8
|
pubmed:dateCreated |
2008-5-8
|
pubmed:abstractText |
The Alzheimer's disease related peptide amyloid beta (Abeta) might have a physiological role in upregulating K channel currents in neurones. Earlier studies used the human form of Abeta1-40 on rat neurones. We sought to confirm our hypothesis by use of rat Abeta, which has no Alzheimer's association. In rat cerebellar granule neurones and HEK293 cells expressing Kv4.2 subunits, whole-cell patch clamp of K currents revealed that preincubation of cells with recombinant human or rat Abeta1-40 (10 nM for 24 h) significantly increased K channel current density. This was accompanied by increased mRNA levels for Kv4.2. These data indicate that rodent and human Abeta are effective in modulating K currents. The effectiveness of nonaggregating rat Abeta also strongly supports a physiological role for the peptide.
|
pubmed:grant |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
May
|
pubmed:issn |
0959-4965
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
28
|
pubmed:volume |
19
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
839-43
|
pubmed:dateRevised |
2010-11-18
|
pubmed:meshHeading |
pubmed-meshheading:18463498-Amyloid beta-Peptides,
pubmed-meshheading:18463498-Animals,
pubmed-meshheading:18463498-Cell Line,
pubmed-meshheading:18463498-Cerebellum,
pubmed-meshheading:18463498-Humans,
pubmed-meshheading:18463498-Ion Channel Gating,
pubmed-meshheading:18463498-Kidney,
pubmed-meshheading:18463498-Neurons,
pubmed-meshheading:18463498-Patch-Clamp Techniques,
pubmed-meshheading:18463498-Peptide Fragments,
pubmed-meshheading:18463498-Potassium,
pubmed-meshheading:18463498-RNA, Messenger,
pubmed-meshheading:18463498-Rats,
pubmed-meshheading:18463498-Recombinant Proteins,
pubmed-meshheading:18463498-Shal Potassium Channels
|
pubmed:year |
2008
|
pubmed:articleTitle |
Modulation of 'A'-type K+ current by rodent and human forms of amyloid beta protein.
|
pubmed:affiliation |
Institutes of aMembrane and Systems Biology bCardiovascular Research, University of Leeds, Leeds, UK.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|