Results 181 to 190 of about 459,381 (230)

The Supraoptic Nucleus as an Osmoreceptor

Neuroendocrinology, 1982
The "Progress' review is written to challenge the prevalent belief that neurones of the supraoptic nucleus are not involved in the reception of osmotic stimuli. Evidence is presented that these neurones are depolarised by physiological increases in the osmotic pressure of the extracellular fluid.
W. T. Mason, Gareth Leng, R. G. Dyer
openaire   +4 more sources

Cytoarchitecture of the Supraoptic Nucleus

Neuroendocrinology, 1979
A Golgi-Cox study of the supraoptic nucleus of the adult rabbit has revealed the presence of three major cell types: (1) large multipolar neurons; (2) large bipolar neurons, and (3) small interneurons. The multipolar and bipolar neurons demonstrated regional variation in the rostral and caudal aspects of this nucleus, while the interneurons appeared ...
David L. Felten, Kathryn A. Cashner
openaire   +3 more sources

Cytoarchitecture of the rat's supraoptic nucleus [PDF]

Anatomy and Embryology, 1984
There have been few Golgi studies dealing with the cytoarchitecture of the supraoptic nucleus (SON). This is due in part to resistance of supraoptic neurons to impregnation by Golgi methods. In this study, the structure of the SON was examined in normal S/D rats by using both Nissl and Golgi-silver methods.
J. E. Bruni, P. M. Perumal
openaire   +2 more sources

Gene expression in the supraoptic nucleus

Microscopy Research and Technique, 2002
AbstractThe magnocellular neurosecretory cells (MNCs) in the supraoptic nucleus (SON) express multiple kinds of genes, including not only the classical hormones arginine vasopressin (AVP) and oxytocin (OXT), but also other physiologically active substances including neuropeptides, their receptors, and nitric oxide (NO) synthase, the rate‐limiting ...
Ueta, Y, Levy, A, Lightman, SL
openaire   +3 more sources

Assessment of Spike Activity in the Supraoptic Nucleus

Journal of Neuroendocrinology, 2004
AbstractNovel approaches to the characterization of coding carried by spike trains are discussed. Measuring firing frequency alone may only partially reflect spike patterning, and can only quantify changes of the most obvious kind. We have devised a method that combines probabilistic and information approaches to quantify the variability of the ...
Richard E.J. Dyball, G. S. Bhumbra, A. N. Inyushkin   +2 more
openaire   +2 more sources

Peripartum interneuronal coupling in the supraoptic nucleus

Brain Research, 2002
In the supraoptic nucleus (SON), the incidence of conducting gap junctions (gjs), as indicated by dye coupling, is low in cycling females, but dramatically elevated in nursing mothers. Functionally, this is consistent with the well-established presence of synchronous milk ejection bursts among oxytocin neurons only in the lactating rat.
Qin Zhao Yang, Glenn I. Hatton
openaire   +3 more sources

Afferent connections of the rat's supraoptic nucleus

Brain Research Bulletin, 1990
Neurons projecting to the supraoptic nucleus (SON) have been identified following stereotaxic injections of either horseradish peroxidase or fast blue into the SON region of adult rats. The subfornical organ, median preoptic nucleus, organum vasculosum of the lamina terminalis and medial septal nucleus were the source of the largest numbers of ...
Anthony M. Kaufmann, J.E. Bruni, W.A. Anderson   +2 more
openaire   +3 more sources

ANTIDIURETIC MATERIAL IN THE SUPRAOPTIC NUCLEUS

Endocrinology, 1945
Two FUNCTIONS have been attributed to the supraoptic nuclei of the hypothalamus: trophic innervation of the neurohypophysis and secretion. The first is well established, and according to Magoun and Ranson (1939) “few connections in the nervous system rest upon the volume of supporting evidence which has been brought forward for that between the ...
Eleanor V. Melville, Kendrick Hare
openaire   +2 more sources

Somatic spines in the supraoptic nucleus of the rat hypothalamus

Cell and Tissue Research, 1974
Electron 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 ...
John D. Ifft, Lawrence McCarthy
openaire   +3 more sources

Cardiovascular Regulation of Vasopressin Neurons in the Supraoptic Nucleus

Experimental Neurology, 2001
This 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 ...
Regina R. Grindstaff, J. Thomas Cunningham   +1 more
openaire   +3 more sources