Changes in the ultrastructure of synapses and neurons of the ventral horns of the spinal cord in cats with tetany as a result of the removal of the parathyroid glands

An electron microscopic investigation on ultrastructure of synapses and ventral horns of the lumbar thickening in the spinal cord of cats with parathyroprival tetany has been performed. When motor disorders are clearly seen on the 2d - 4th days after removal of the parathyroid glands, together with...

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Bibliographic Details
Published inArkhiv anatomii, gistologii i embriologii Vol. 86; no. 6; p. 15
Main Authors Avakian, L A, Khudaverdian, D N
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.06.1984
Subjects
Animals
Cats
Hypoparathyroidism - complications
Hypoparathyroidism - pathology
Microscopy, Electron
Motor Neurons - ultrastructure
Parathyroid Glands - surgery
Spinal Cord - ultrastructure
Synapses - ultrastructure
Tetany - etiology
Tetany - pathology
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Summary:An electron microscopic investigation on ultrastructure of synapses and ventral horns of the lumbar thickening in the spinal cord of cats with parathyroprival tetany has been performed. When motor disorders are clearly seen on the 2d - 4th days after removal of the parathyroid glands, together with the changes demonstrating functional activity of the synapses, certain irreversible degenerative changes of the "dark" type are seen in the axodendritic and axosomatic synapses. A complex of structural-metabolic changes has been revealed in the motor neurons, they have both functional-compensatory and degenerative character. It is possible to suggest that the changes revealed at parathyroprival tetany result from a disturbed metabolism and increased afferent influences.
ISSN:0004-1947