Linked Life Data

20503424

Source:http://linkedlifedata.com/resource/pubmed/id/20503424

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2010-5-26
pubmed:abstractText
The annual sexual cycle of Clarias batrachus is divisible into resting (December-January), preparatory (February-April), prespawning (May-June), spawning (July- August), and postspawning (September-November) phases. The gonosomatic indices rose steadily through the preparatory and prespawning phases, peaked in the spawning phase, and were greatly reduced during the postspawning and resting phases. A clear pattern of change was also identified in the immunocytochemical profile of the luteinizing hormone (LH) cells in the pituitary. These changes were correlated with the cocaine- and amphetamine-regulated transcript (CART)-immunoreactive system in the forebrain and pituitary. In the olfactory bulb, CART immunoreactivity in the terminal fields of the mitral cell layer, granule cells, and medial olfactory tracts gradually decreased during the resting through prespawning phases. However, it was considerably augmented during spawning (P < 0.001) and showed highest activity in the postspawning phase (P < 0.001). A different pattern was noticed in the fibers and/or neurons of the lateral part of ventral telencephalic area, the entopeduncular nucleus, and the dorsal part of the nucleus preopticus periventricularis. In these areas, intense immunoreactivity seen in preparatory phase, declined during prespawning (P < 0.01) then through spawning, and was partially augmented during the postspawning and resting phases (P < 0.05). A similar pattern was also seen in the nucleus preglomerulosus lateralis and medialis, nucleus dorsalis posterioris of thalamus, lobobulbar nucleus, and the nucleus of posterior recess. CART was transiently expressed in LH cells in the pituitary during the preparatory period. We suggest that the CART system may play a role in triggering the brain-pituitary-ovary axis at the onset of the preparatory phase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1096-9861
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
518
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2503-24
pubmed:meshHeading
pubmed-meshheading:20503424-Animals, pubmed-meshheading:20503424-Brain, pubmed-meshheading:20503424-Catfishes, pubmed-meshheading:20503424-Female, pubmed-meshheading:20503424-Fish Proteins, pubmed-meshheading:20503424-Fluorescent Antibody Technique, pubmed-meshheading:20503424-Immunohistochemistry, pubmed-meshheading:20503424-Luteinizing Hormone, pubmed-meshheading:20503424-Nerve Tissue Proteins, pubmed-meshheading:20503424-Neurons, pubmed-meshheading:20503424-Neuropeptide Y, pubmed-meshheading:20503424-Olfactory Bulb, pubmed-meshheading:20503424-Olfactory Pathways, pubmed-meshheading:20503424-Periodicity, pubmed-meshheading:20503424-Photomicrography, pubmed-meshheading:20503424-Pituitary Gland, pubmed-meshheading:20503424-Prosencephalon, pubmed-meshheading:20503424-Reproduction, pubmed-meshheading:20503424-Seasons
pubmed:year
2010
pubmed:articleTitle
Reproductive phase-related variations in cocaine- and amphetamine-regulated transcript (CART) in the olfactory system, forebrain, and pituitary of the female catfish, Clarias batrachus (Linn.).
pubmed:affiliation
Department of Pharmaceutical Sciences, R.T.M. Nagpur University Campus, Nagpur 440 033, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't