Results 141 to 150 of about 3,585 (189)
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The development of cholecystokinin in the interpeduncular nucleus of rats
Developmental Brain Research, 1992This study describes the development and late disappearance of cholecystokinin-like immunoreactivity (CCK-LI) in the interpeduncular nucleus (IPN) of rats. Between one and 7 days of age, CCK-positive fiber labeling was sparse and restricted to the lateral subnuclei of the caudal IPN.
M P, Joyce, G A, Barr
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Subdivisions of the interpeduncular nucleus: A proposed nomenclature
Brain Research Bulletin, 1984A compromise terminology for subdivisions is proposed which integrates the two previous standard and two recent and more detailed subnuclear schemes. The unpaired median subnuclei are called rostral, central and apical. The paired subnuclei are called rostral lateral, dorsal lateral, intermediate and lateral.
N J, Lenn, G S, Hamill
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Developmental Biology, 2012 The interpeduncular nucleus (IP) is a key limbic structure, highly conserved evolutionarily among vertebrates. The IP receives indirect input from limbic areas of the telencephalon, relayed by the habenula via the fasciculus retroflexus.
FRANCISCO Marin +2 more
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A study of afferent projections to the rat interpeduncular nucleus
Brain Research Bulletin, 1984Forebrain and brainstem afferents projecting to the interpeduncular nucleus (IPN) have been demonstrated in male rats by retrograde transport of fluorescent dye, "fast blue," microinjected in IPN, followed by intraventricular colchicine 48 hr prior to perfusion.
G S, Hamill, D M, Jacobowitz
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Transitory behavioral effects of interpeduncular nucleus damage
Experimental Neurology, 1961Abstract Previous research on rats has shown that the interpeduncular nucleus is implicated in retention of various learned habits. The present study tested whether the deficit in retention resulting from lesions in it is subject to diminution by lengthening the postoperative recovery period from 1 week to 3 weeks. Prolongation of the recovery period
R, THOMPSON, I, RICH
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Presynaptic GABAB sites in the interpeduncular nucleus
Neuropharmacology, 1984Abstract GABAB sites are highly concentrated in the interpeduncular nucleus (IPN). In an attempt to determine the cellular location of these sites we have examined the effect of lesions on the binding of 3H-GABA. The intrinsic neurones of the IPN were lesioned with kainate or ibotenate injections and the major afferent pathway from the habenula ...
G.W. Price +3 more
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Postnatal synaptogenesis in the rat interpeduncular nucleus
Journal of Comparative Neurology, 1978AbstractThe rat interpeduncular nucleus (IPN) was studied by electron microscopy from the day of birth to 33 days of age. The habenulointerpeduncular (H‐IPN) axons, the principal afferents to IPN, were prominent at birth, occuring in large groups. They formed occasional S synapses en passant at this time. S synapses subsequently increased progressively
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Neurogenesis in subnuclei of the rat interpeduncular nucleus and medial habenula
Brain Research Bulletin, 1986Development of the rat habenulo-interpeduncular system is of interest because of its highly ordered adult structure, including seven subnuclei within the interpeduncular nucleus (IPN), localization of synapses of different types and medial habenular (MH) sites of origin within the subnuclei, and differential localization of neurochemicals amongst the ...
N J, Lenn, S A, Bayer
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Interpeduncular Nucleus and Avoidance Conditioning in the Rat
Science, 1960Rats trained to make a jumping response to the onset of a visual stimulus lost the habit after damage to the interpeduncular nucleus of the midbrain. It was noted, however, that the majority of the operated animals showed perfect retention of the "fear" response to the conditioned stimulus.
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The ultrastructure of enkephalin‐immunoreactive neurons in the interpeduncular nucleus of the rat
Journal of Comparative Neurology, 1986AbstractThe interpeduncular nucleus of the rat is a complex structure, displaying diverse immunocytochemical and ultrastructural features. This nucleus contains opiate receptors, enkephalin‐positive cell bodies and enkephalin‐positive fibers. The ultrastructure of rat interpeduncular enkephalinergic neurons has not been described, nor has the role that
T J, Mahalik, T E, Finger
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