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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6 Pt 2
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pubmed:dateCreated |
1993-7-2
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pubmed:abstractText |
Calcitonin gene-related peptide, a product of the calcitonin gene, is a potent vasodilator neuropeptide. We have demonstrated that dietary calcium deficiency decreased the neuronal (laminae I/II of the dorsal horn of the spinal cord) content of immunoreactive calcitonin gene-related peptide in the normal rat. Neuronal calcitonin gene-related peptide levels are also reduced in the spontaneously hypertensive rat, a model characterized by calcium deficiency. However, the mechanism of this reduction in neuronal calcitonin gene-related peptide could be due to decreased synthesis or increased release. To determine if neuronal calcitonin gene-related peptide messenger RNA (mRNA) levels are also decreased in the spontaneously hypertensive rat, we measured relative calcitonin gene-related peptide mRNA levels (using a genomic hybridization probe specific for alpha- and beta-calcitonin gene-related peptide mRNA) in dorsal root ganglia from spontaneously hypertensive and Wistar-Kyoto control rats. Dorsal root ganglia neuronal cell bodies are a prominent site of calcitonin gene-related peptide synthesis and send axons to peripheral blood vessels and central spinal cord sites (laminae I/II). After normalization of calcitonin gene-related peptide mRNA levels of 18S RNA, the calcitonin gene-related peptide mRNA/18S RNA ratio was significantly decreased approximately threefold in the spontaneously hypertensive rats compared with controls. This alteration in calcitonin gene-related peptide mRNA levels is specific for dorsal root ganglia, because no strain differences in calcitonin gene-related peptide mRNA content were detected in heart or brain.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0194-911X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1010-4
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8505084-Animals,
pubmed-meshheading:8505084-Blotting, Northern,
pubmed-meshheading:8505084-Calcitonin Gene-Related Peptide,
pubmed-meshheading:8505084-Ganglia, Spinal,
pubmed-meshheading:8505084-Gene Expression,
pubmed-meshheading:8505084-Male,
pubmed-meshheading:8505084-RNA, Messenger,
pubmed-meshheading:8505084-RNA, Ribosomal, 18S,
pubmed-meshheading:8505084-Rats,
pubmed-meshheading:8505084-Rats, Inbred SHR,
pubmed-meshheading:8505084-Rats, Inbred WKY,
pubmed-meshheading:8505084-Reference Values
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pubmed:year |
1993
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pubmed:articleTitle |
Calcitonin gene-related peptide gene expression in the spontaneously hypertensive rat.
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pubmed:affiliation |
Department of Internal Medicine, University of Texas Medical Branch, Galveston 77555-0645.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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