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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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The interpeduncular nucleus regulates nicotineʼs effects on free-field activity
NeuroReport, 1995Partial lesions were made with kainic acid in the interpeduncular nucleus of the ventral midbrain of the rat. Compared with sham-operated controls, lesions significantly (p < 0.25) blunted the early (
I D, Hentall, L, Gollapudi
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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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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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Subthalamic Nucleus Targeting Using Interpeduncular Cistern as an Internal Landmark
Operative Neurosurgery, 2011Internal landmarks for the subthalamic nucleus (STN) have been used in past. This study uses a yet-unused internal landmark to refine STN targeting.To determine the effect of the width of the interpeduncular cistern (IPC) on STN targeting during placement of deep brain stimulation (DBS) for Parkinson disease.Fifty consecutive patients with Parkinson ...
Milind, Deogaonkar +3 more
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1986
Publisher Summary The interpeduncular nucleus (IPN) is a phylogenetically conserved area of the brain. Anatomically, the IPN is unique in that it is primarily an unpaired structure, but receives a significant input from a paired structure, the habenula (Hb).
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Publisher Summary The interpeduncular nucleus (IPN) is a phylogenetically conserved area of the brain. Anatomically, the IPN is unique in that it is primarily an unpaired structure, but receives a significant input from a paired structure, the habenula (Hb).
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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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Interpeduncular nucleus organization in the rat: Cytoarchitecture and histochemical analysis
Brain Research Bulletin, 1984The organization of the interpeduncular nucleus (IPN) in the adult rat was analyzed using cytoarchitectonic, histochemical and immunohistochemical methods. Four paired and four unpaired subnuclei can be distinguished in the IPN on the basis of neuronal size, morphology, staining characteristics and packing density.
L M, Hemmendinger, R Y, Moore
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Lesion-induced catecholaminergic sprouting in the interpeduncular nucleus
Neurochemical Research, 1984This work examined the capacity of intact catecholaminergic axon terminals to sprout in the partially deafferented interpeduncular nucleus (IPN). The results show that norepinephrine and dopamine levels were markedly increased in the IPN 6 weeks after bilateral habenula (Hb) lesions.
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The interpeduncular nucleus (ITP)
Cell and Tissue Research, 1977Special types of cells of the interpeduncular nucleus (ITP) in the fog, Rana esculenta, are described after three typed of fixation: osmium tetroxide, aldehydes and potassium permanganate. Large granules with a sub-unit structure occurring together with bundles of filaments and elongated mitochondria are illustrated in the processes of cells, the ...
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