Linked Life Data

17316165

Source:http://linkedlifedata.com/resource/pubmed/id/17316165

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-2-23
pubmed:abstractText
The pineal and retinal melatonin regulates endogenous circadian rhythms, and has various physiological functions including neuromodulatory and vasoactive actions, antioxidative and neuroprotective properties. We have previously demonstrated that the melatonin 1a-receptor (MT(1)) is localized in human retinal cells and that the expression of MT(1) is increased in Alzheimer's disease (AD) patients. We now present the first immunohistochemical evidence for the cellular distribution of the second melatonin receptor, MT(2), in the human retina and in AD patients. In elderly controls, MT(2) was localized to ganglion and bipolar cells in the inner nuclear layer, and to the inner segments of the photoreceptor cells. In addition, cellular processes in inner and outer plexiform layers were strongly positive for MT(2). In AD patients the overall intensity of MT(2)-staining was distinctly decreased in all observed cellular localizations. Our results indicate that MT(2) in the humans, similar to MT(1), may indeed be involved in transmitting melatonin's effects in the retina, and AD pathology may impair MT(2) expression. Since our previous results showed an increase in MT(1) expression in AD retina, the two melatonin receptor subtypes appear to be differentially affected by the course of the neurodegenerative disorder.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1567-2050
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
47-51
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
The MT2 melatonin receptor subtype is present in human retina and decreases in Alzheimer's disease.
pubmed:affiliation
Psychiatric University Clinic, Basel, Switzerland. egemen.savaskan@upkbs.ch
pubmed:publicationType
Journal Article