Cauda equina syndrome and nitric oxide synthase immunoreactivity in the spinal cord of the dog

Title:

Cauda equina syndrome and nitric oxide synthase immunoreactivity in the spinal cord of the dog

Creator:

Jozef Maršala, Kafka, J., Naděžda Lukáčová, Dáša Čížková, Martin Maršala, and Katsube, N.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:0093a140-52a2-4031-b3f5-4c94efd74520
uuid:0093a140-52a2-4031-b3f5-4c94efd74520
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, mícha, psi, spinal cord, dogs, cauda equina syndrome, nitric oxide synthase, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The development of the cauda equina syndrome in the dog and the involvement of spinal nitric oxide synthase immunoreactivity (NOS-IR) and catalytic nitric oxide synthase (cNOS) activity were studied in a pain model caused by multiple cauda equina constrictions. Increased NOS-IR was found two days post-constriction in neurons of the deep dorsal horn and in large, mostly bipolar neurons located in the internal basal nucleus of Cajal seen along the medial border of the dorsal horn. Concomitantly, NOS-IR was detected in small neurons close to the medioventral border of the ventral horn. High NOS-IR appeared in a dense sacral vascular body close to the Lissauer tract in S1-S3 segments. Somatic and fiber-like NOS-IR appeared at five days post-constriction in the Lissauer tract and in the lateral and medial collateral pathways arising from the Lissauer tract. Both pathways were accompanied by a dense punctate NOS immunopositive staining. Simultaneously, the internal basal nucleus of Cajal and neuropil of this nucleus exhibited high NOS-IR. A significant decrease in the number of small NOS immunoreactive somata was noted in laminae I-II of L6-S2 segments at five days post-constriction while, at the same time, the number of NOS immunoreactive neurons located in laminae VIII and IX was significantly increased. Moreover, high immunopositivity in the sacral vascular body persisted along with a highly expressed NOS-IR staining of vessels supplying the dorsal sacral gray commissure and dorsal horn in S1-S3 segments. cNOS activity, based on a radioassay of compartmentalized gray and white matter regions of lower lumbar segments and non-compartmentalized gray and white matter of S1-S3 segments, proved to be highly variable for both post-constriction periods., J. Maršala, J. Kafka, N. Lukáčová, D. Čížková, M. Maršala, N. Katsube., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2003 Volume:52 | Number:4

Harvested from:

CDK

Metadata only:

false