PMID: 9181491May 1, 1997Paper

Projection sites of medial preoptic area and ventral bed nucleus of the stria terminalis neurons that express Fos during maternal behavior in female rats

Journal of Neuroendocrinology
M Numan, M J Numan

Abstract

Medial preoptic area (MPOA) and ventral bed nucleus of the stria terminalis (VBST) neurons are involved in maternal behavior, but the neural sites to which the maternally relevant neurons project have not been determined. Since MPOA and VBST neurons express Fos during maternal behavior, we used a double-labeling immunocytochemical procedure to detect both Fos and a retrograde tracer, wheat germ agglutinin (WGA), in order to determine where these Fos neurons project. On Day 4 postpartum, fully maternal females were separated from their litters. On Day 5, WGA was iontophoretically injected into one of the following regions known to receive MPOA and/or VBST input: Lateral septum, medial hypothalamus at the level of the ventromedial nucleus, lateral habenula, ventral tegmental area, retrorubral field, or periaqueductal gray. On Day 7, females received a 2-h test with either pups or candy, after which they were perfused and their brains were processed for the detection of Fos and WGA. As expected, females tested with pups had more Fos-containing neurons in the MPOA and VBST than did females tested with candy. After WGA injections into several brain sites, the number of double-labeled cells observed in the MPOA and VBST was greater f...Continue Reading

Citations

Sep 13, 2006·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Cheng-Shu Li, Young K Cho
Mar 16, 2007·Journal of Child Psychology and Psychiatry, and Allied Disciplines·James E SwainLane Strathearn
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Nov 14, 2006·Behavioral and Cognitive Neuroscience Reviews·Michael Numan
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