Linked Life Data

10674755

Source:http://linkedlifedata.com/resource/pubmed/id/10674755

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-3-9
pubmed:abstractText
The aim of this study was to evaluate the efficacy, optimal dose, and optimal time-window of gacyclidine, a novel N-methyl-D-aspartate (NMDA) receptor antagonist, in terms of its functional, histopathological, and electrophysiological effects after experimental spinal cord injury. The spinal cord of rats was damaged by a photochemical method and the animals were treated by saline or gacyclidine at doses of 1, 2.5, or 5 mg/kg 10 min after injury or gacyclidine 1 mg/kg 10, 30, 60, and 120 min after injury. The time-course of the motor score (walking and inclined-plane stability) was evaluated until day 18, and somatosensory evoked potentials were determined on day 18. The animals were then sacrificed, and the cross-sectional area of the spinal cord (at the epicenter of the injury, above and below the injury) was measured. Walking recovery was better in most of the groups treated after injury than in the untreated injured animals. Motor performances were related to preservation of a larger undamaged area of spinal cord at the level of the injury and, interestingly, with prevention of extension of the anatomical lesion above the level of the injury. Somatosensory evoked potential amplitudes were often higher in treated groups. These results confirm that gacyclidine induces dose-dependent and time-dependent attenuation of spinal cord damage after an experimental vascular lesion. Although all three doses induced neuroprotective effects, recovery was greater and very homogeneous in the group treated with 1 mg/kg. Moreover, recovery was slightly better and more homogeneous within the groups treated 10 and 30 min after injury compared to the other groups. It appears that, according to the existing evidence, NMDA antagonists are an essential component in the elaboration of a neuroprotective strategy after spinal cord trauma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0897-7151
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
19-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10674755-Animals, pubmed-meshheading:10674755-Cyclohexanes, pubmed-meshheading:10674755-Cyclohexenes, pubmed-meshheading:10674755-Disease Progression, pubmed-meshheading:10674755-Dose-Response Relationship, Drug, pubmed-meshheading:10674755-Evoked Potentials, Somatosensory, pubmed-meshheading:10674755-Excitatory Amino Acid Antagonists, pubmed-meshheading:10674755-Light Coagulation, pubmed-meshheading:10674755-Male, pubmed-meshheading:10674755-Motor Activity, pubmed-meshheading:10674755-Neuroprotective Agents, pubmed-meshheading:10674755-Piperidines, pubmed-meshheading:10674755-Rats, pubmed-meshheading:10674755-Rats, Sprague-Dawley, pubmed-meshheading:10674755-Reaction Time, pubmed-meshheading:10674755-Receptors, N-Methyl-D-Aspartate, pubmed-meshheading:10674755-Spinal Cord, pubmed-meshheading:10674755-Spinal Cord Injuries, pubmed-meshheading:10674755-Spinal Cord Ischemia
pubmed:year
2000
pubmed:articleTitle
Neuroprotective effects of gacyclidine after experimental photochemical spinal cord lesion in adult rats: dose-window and time-window effects.
pubmed:affiliation
Laboratoire de Neurophysiologie Clinique, Centre PROPARA-SEREP, Montpellier, France. manuelgaviria@hotmail.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't