Results 181 to 190 of about 13,268 (215)
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GABAergic projection from the arcuate nucleus to the supraoptic nucleus in the rat
Neuroscience Letters, 2000Electrical stimulation of the neurones in the hypothalamic arcuate nucleus results in a transient inhibition followed by a marked post-stimulus excitation of magnocellular neurones of the supraoptic nucleus. Microdialysis administration of the gamma-aminobutyric acid agonist (GABA(A)), muscimol, directly into the supraoptic nucleus inhibited both ...
M, Ludwig, G, Leng
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Dendritic trees of neurones in the rat supraoptic nucleus
Neuroscience, 1982The cytoarchitecture of the rat supraoptic nucleus was studied using the Golgi-Cox method with a neutral red or Cresyl violet counterstain to allow the limits of the nucleus to be determined accurately. A small number of stained neurones were seen in each of the brains sectioned but they were unevenly distributed in the supraoptic nucleus.
R E, Dyball, S K, Kemplay
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Somatic spines in the supraoptic nucleus of the rat hypothalamus
Cell and Tissue Research, 1974Electron microscopic studies of ultrathin serial sections of the perikarya and adjacent neuropil of neurons of the supraoptic nucleus (SON) of the adult male rat revealed varying forms of two types of somatic spines. One type forms synapses with axons passing the cell, the other, without synapses, appears to serve as a buttress or clasp for adjacent ...
J D, Ifft, L, McCarthy
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Glial Limitans Elasticity Subjacent to the Supraoptic Nucleus
Journal of Neuroendocrinology, 2004AbstractTwo previous studies from our laboratory have indicated that the ventral glial limitans subjacent to the hypothalamic supraoptic nucleus (SON‐VGL) undergoes a reversible thinning upon chronic activation of the magnocellular neuroendocrine cells (MNCs) of the supraoptic nucleus (SON). Numerous other studies have shown that MNC somata hypertrophy
A K, Salm, N, Hawrylak
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Cardiovascular Regulation of Vasopressin Neurons in the Supraoptic Nucleus
Experimental Neurology, 2001This paper reviews the regulation of hypothalamic vasopressin and oxytocin neurosecretory cells in the neural response to plasma volume expansion. Many questions remain unanswered regarding how an increase in volume affects neurohypophysial hormone secretion, what receptors are important in mediating this response, and which neural pathways are ...
R R, Grindstaff, J T, Cunningham
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Neurosecretory activity in supraoptic nucleus of normal rats
Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1966The secretory rhythm of neurosecretory cells was studied in supraoptic nuclei of normally drinking rats. Both nuclei were divided in five zones, and in each one, the nuclear and nucleolar volumes of 50 neurons were measured. Parallel observations were made on the Nissl material and neurosecretory granules.
D, Zambrano, J, Mordoh
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Neuron–glia interactions in the rat supraoptic nucleus
2008The adult hypothalamo-neurohypophysial system undergoes a striking activity-dependent morphological remodelling that modifies the glial enwrapping of its magnocellular neurons. Although the functional consequences of such remodelling remain hypothetical, recent evidence has provided new insights into the repercussions of glial environment modifications
Stéphane H R, Oliet +5 more
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Maturation of the supraoptic nucleus: A multidisciplinary analysis
Peptides, 1980Abstract The ontogeny of the rat supraoptic nucleus (SON) has been studied with several different techniques: Microscopic and ultrastructural evaluation of cytodifferentiation of the nucleus, radioimmunoassay of vasopressin (VP) and oxytocin (OT) content of the hypothalamo-neurohypophyseal system, immunocytochemical evaluation of neurophysin (NP ...
Celia D. Sladek +4 more
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Daily Rhythms of Spike Coding in the Rat Supraoptic Nucleus
Journal of Neuroendocrinology, 2009Novel measures of coding based on interspike intervals were used to characterise the rhythms of single unit activity in the supraoptic nucleus during the day/night cycle in urethane‐anaesthetised rats in vivo. Both continuously firing and phasic cells showed significant (P < 0.001) diurnal rhythms of spike frequency and in the irregularity of firing,
G S, Bhumbra +4 more
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The influence of age on supraoptic nucleus glial cells of the mouse
Mechanisms of Ageing and Development, 1994In 2-year-old mice, astrocytes of the supraoptic nucleus (SON) of the hypothalamus, placed in close contact with the meningeal covering contained concentric arrangements of cisterns in their cytoplasm called glial concentric bodies (GCBs). They are formed by a variable number of flattened cisterns without pores, and no anastomosis was observed between ...
D, Crespo +5 more
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