Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-10-5
pubmed:abstractText
Adult male Wistar rats were trained in a step-down inhibitory avoidance learning task (3.0-s, 0.4-mA foot shock), received a 0.5-microl infusion of muscimol (0.02, 0.1, or 0.5 microg), AP5 (0.16, 0.34, 0. 5, 1.6, or 5.0 microg), SCH 23390 (0.05, 0.34, 0.5, or 1.75 microg), saline, or vehicle (DMSO 20%) into the anterior medial precentral area (Fr2) (CI) immediately after training, and were tested 24 h later. Muscimol (0.02, 0.1, or 0.5 microg), AP5 (0.34 or 0.5 microg), or SCH (0.5 or 1.75 microg) were amnesic. Then, animals were infused with muscimol (0.1 or 0.5 microg), AP5 (0.34, 0.5, or 5.0 microg), or SCH (0.5 microg) at other posttraining times and/or into the junction of Fr1-Fr2 (CII). Muscimol (0.1 and 0.5 microg) or SCH into CI were amnesic when given 90 or 180 min after training, but not when given 270 min after training. Muscimol (0.5 microg, but not 0.1 microg) or SCH into CII were amnesic when given 90 min after training, but not when given 0 or 180 min after training. AP5 (0.5, but not 5.0 microg) was amnesic when given into CI, but not into CII, at 0 or 180 min posttraining, and a trend toward an amnesic effect was seen at 90 min posttraining. The results suggest that 1) the glutamatergic, GABAergic, and dopaminergic systems in Fr2 are involved in the consolidation of memory for inhibitory avoidance learning, either directly or as parts of modulatory systems; and 2) timing of involvement of anterior Fr2 (CI) is different from that of posterior Fr2 (CII).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0091-3057
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
615-22
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10899379-2-Amino-5-phosphonovalerate, pubmed-meshheading:10899379-Animals, pubmed-meshheading:10899379-Avoidance Learning, pubmed-meshheading:10899379-Dopamine, pubmed-meshheading:10899379-Drug Administration Routes, pubmed-meshheading:10899379-Excitatory Amino Acid Antagonists, pubmed-meshheading:10899379-GABA Agonists, pubmed-meshheading:10899379-Male, pubmed-meshheading:10899379-Medial Forebrain Bundle, pubmed-meshheading:10899379-Memory, pubmed-meshheading:10899379-Muscimol, pubmed-meshheading:10899379-Prefrontal Cortex, pubmed-meshheading:10899379-Rats, pubmed-meshheading:10899379-Rats, Wistar, pubmed-meshheading:10899379-Receptors, AMPA, pubmed-meshheading:10899379-Receptors, N-Methyl-D-Aspartate, pubmed-meshheading:10899379-Teaching, pubmed-meshheading:10899379-gamma-Aminobutyric Acid
pubmed:year
2000
pubmed:articleTitle
Involvement of the medial precentral prefrontal cortex in memory consolidation for inhibitory avoidance learning in rats.
pubmed:affiliation
Centro de Memória, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Ramiro Barcelos 2600, 90035-003, RS, Porto Alegre, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't