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Distribution and morphology of the NOS-immunoreactive neurons in the thoracolumbar and sacral spinal cord of the pig

100%

Calka J., Zalecki M., Wasowicz K., Lakomy M.

Medycyna Weterynaryjna

2006

tom 62

nr 10

1134-1138

The study investigated the distribution and morphology of nitric oxide synthesis-immunoreactive neuronal cell bodies and processes in the thoracolumbar and sacral spinal cord of sexually immature gilts. Investigations revealed the following: NOS-immunoreactive fibers and singular cell bodies in regions of the dorsal horn including superficial laminae I and II and deeper laminae III and IV; prominent NOS-immunolabeled perikarya in intermediolateral nucleus of the thoracolumbar spinal segments; NOS-positive perikarya in lamina X along the thoracic, lumbar and sacral divisions of the cord; NOS-positive perikarya and fibers in the area near to the location of the intermediomedial and intermediolateral nuclei in the sacral segments of the cord. The obtained morphological results indicate that the general distribution pattern of NOS-positive neurons in the spinal cord of pigs resembles that of other species. The concentration of NO-ergic neurons in the autonomic nuclei, dorsal horn laminae I, II, III, IV and lamina X suggests a prominent role of NO-ergic neurons in visceral and sensory functions.

Evidence for coexistence of choline acetyltransferase (ChAT)- and calcitonin gene-related peptide (CGRP)-immunoreactivity in the thoracolumbar and sacral spinal cord neurons of the pig

84%

Calka J., Franke-Radowiecka A., Zalecki M., Lakomy M.

Polish Journal of Veterinary Sciences

2009

tom 12

nr 1

Previous immunocytochemical studies provided conflicting data concerning occurrence of the CGRP-immunoreactive neuronal cell bodies in the porcine spinal cord. In the present study, we have investigated expression of the CGRP and its possible coexpression with ChAT in the gray matter of the thoracic, lumbar and sacral spinal cord of the pig. Our study revealed a large number of CGRP-immunoreactive cells in the motor nucleus of the ventral horn, and less and singe perikarya intermediolateral and intermediomedial nuclei, respectively. Double staining immunocytochemistry, depending on the cross-section level, disclosed the highest ChAT/CGRP colocalization subsequently in the motor nucleus of the ventral horn, then in the intermediolateral and intermediomedial nucleus. Our data provide morphological evidence confirming expression of CGRP in the porcine spinal nuclei while its coexpression in cholinergic neurons suggests that CGRP may play a role in modulation of the spinal cholinergic transmission.

Ograniczanie wyników

1 Medycyna Weterynaryjna

1 Polish Journal of Veterinary Sciences

2 Calka J.

2 Lakomy M.

2 Zalecki M.

1 Franke-Radowiecka A.

1 Wasowicz K.

1 2009

1 2006

Wyniki wyszukiwania

Distribution and morphology of the NOS-immunoreactive neurons in the thoracolumbar and sacral spinal cord of the pig

Evidence for coexistence of choline acetyltransferase (ChAT)- and calcitonin gene-related peptide (CGRP)-immunoreactivity in the thoracolumbar and sacral spinal cord neurons of the pig