Neuronal systems immunologically related to the somatostatin system in the garden dormouse

Cell and Tissue Research
J P Richoux, M P Dubois

Abstract

Cells and fibers containing somatostain (SRIF) or SRIF-like peptides were detected immunocytochemically in the brain of the garden dormouse (Eliomys quercinus L.). The periventricular preoptic nucleus and the paraventricular nucleus encompass a component of the SRIF-immunoreactive hypothalamo-infundibular and hypothalamo-neurohypophyseal systems. The suprachiastmatic, ventromedial and arcuate nuclei contain a number of SRIF-positive cells and receive a rich SRIF innervation. The extrahypothalamic systems containing SRIF can be subdivided into the following groups: (1) Afferents, the cellular origin of which is not always clearly evident, i.e., fibers of the septum, the lateral preoptic area, the thalamus, the superior olivary nucleus, the mesencephalic gray matter, and the subfornical organ; (2) dispersed cells with short projections (neocortex, caudate nucleus, putamen); (3) scattered cells with short projections (nucleus accumbens) or innervating remote territories (nucleaus interpeduncularis); (4) vascular organ of the lamina terminalis, a neurohemal area comparable to the median eminence. These observations lead to a theory of a functional bipotentiality of the somatostatin molecule. Immunocytological results depend on the ...Continue Reading

Citations

Aug 7, 1981·Neuroscience Letters·S ShiosakaM Tohyama
Jan 1, 1986·General and Comparative Endocrinology·P Langhorne
Aug 22, 1989·The Journal of Comparative Neurology·J R Alonso, M Frotscher

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