Morphofunctional characteristics of the lumbar enlargement of the spinal cord in rats |
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| Authors: | E. G. Gilerovich T. R. Moshonkina E. A. Fedorova T. T. Shishko N. V. Pavlova Yu. P. Gerasimenko V. A. Otellin |
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| Affiliation: | (1) Department of Morphology (Director: Corresponding Member of the Russian Academy of Medical Sciences Professor V. A. Otellin), Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia;(2) Laboratory of Movement Physiology (Director: Professor Yu. P. Gerasimenko), Institute of Physiology, Russian Academy of Sciences, St. Petersburg, Russia |
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| Abstract: | The topography of the lumbar enlargement of the spinal cord in rats was studied; an immunohistochemical method was used to determine the distribution of synaptophysin — a membrane protein of synaptic vesicles. Synaptophysin-immunoreactive structures were detected in the gray matter of all Rexed laminae, around most neurons and in the neuropil. Previously undescribed subpial synaptic contacts were detected immunohistochemically in the white matter and confirmed by electron microscopy. A non-myelinated component of the corticospinal tract, including axonal varicosities and synaptic contacts, was observed in the dorsal part of the white matter of the lumbar enlargement of the spinal cord. __________ Translated from Morfologiya, Vol. 132, No. 5, pp. 33–37, September–October, 2007. |
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| Keywords: | spinal cord subpial synaptic contacts synaptophysin rats |
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