Linked Life Data

7699305

Source:http://linkedlifedata.com/resource/pubmed/id/7699305

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-4-28
pubmed:abstractText
The distribution of central nerve fibers in the rat pineal complex was studied by means of fluorescence- and immunohistochemistry and electron microscopy. At 7 days after bilateral superior cervical ganglionectomy (SCG-X), blue-green fluorescent (catecholaminergic) fibers and tyrosine hydroxylase- and serotonin-immunoreactive fibers originating from the brainstem were detected in the deep pineal and the pineal stalk. These fibers were not observed in the superficial pineal. In some animals, a few oxytocin-immunopositive fibers were found in the proximal portion of the superficial pineal. The nerve fibers were submicroscopically counted in transverse sections at 6 levels with an interval of about 200 microns each in the pineal stalk. The number of nerve fibers showed 3 peaks, at the proximal-most, the intermediate and the distal-most levels. On the other hand, various types of synapses, axo-dendritic, axo-axonic and axo-pinealocytic, and many free terminals, were observed in the stalk. In these synapses, the majority of presynaptic swellings contained only clear vesicles, but some of them possessed aminergic (5-hydroxydopamine- or 5,6-dihidroxytriptamine-positive) vesicles or elementary granules. The reduction in the number of nerve fibers was most conspicuous in the distal-most level after the SCG-X. Based on these results, it is supposed that the proximal peak is formed by the central fibers going further to the stalk and turning back to the brain, the intermediate peak is formed by the terminal arborizations of the central fibers, and the distal peak shows penetration of the sympathetic fibers.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-0744
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
255-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Nerve fibers originating from the brain in the rat pineal complex.
pubmed:affiliation
Department of Anatomy, Meiji College of Oriental Medicine, Kyoto, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't