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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-3-8
pubmed:abstractText
Beacon gene has been recently identified in the rat hypothalamus, and reported to be overexpressed in obese animals. This pattern of expression suggests that beacon may be involved in the functional regulation of neuroendocrine axes. Hence, we have investigated the expression of beacon in the endocrine system of the rat. Reverse transcription-polymerase chain reaction showed the expression of beacon mRNA in the hypothalamus, adenohypophysis, thyroid gland, adrenal gland, testis, ovary and pancreatic islets. Immunocytochemistry demonstrated the presence of the beacon immunoreactivity in all tissues studied, the staining being very intense in the neurons of paraventricular and supraoptic nuclei, the basophils of adenohypophysis, the parathyroid gland, adrenocortical cells, testis Leydig cells, ovary thecal, granulosa and lutein cells, and pancreatic islets. Due the fact that beacon has been included in the ubiquitin-like protein family, its widespread expression in rat endocrine tissues is not astonishing. The in vivo administration of beacon[47-73] (3.5 nmol/100 body weight) elicited within 60 min a marked decrease in the plasma concentration of ACTH, aldosterone and corticosterone, and a moderate lowering of the blood levels of testosterone and estradiol. This finding suggests that beacon exerts a negative modulatory action on the pituitary-adrenal axis and gonad secretory activity, whose physiological relevance remains, however, to be established.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
133-7
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Expression of the beacon gene in endocrine glands of the rat.
pubmed:affiliation
Department of Histology and Embryology, School of Medicine, PL-60781 Poznan, Poland.
pubmed:publicationType
Journal Article