Abstract
Products of inflammatory phagocytes are potential contributors to secondary pathology following spinal cord trauma. In the present study we quantified the levels of the neurotoxin and product of activated macrophages, quinolinic acid (QUIN), in the lower thoracic spinal cord of adult guinea pigs 5 days after brief compression injury. At the injured site (T13), elevations in tissue QUIN levels (> 10-fold) accompanied proportional increases in the activity of indoleamine-2,3 dioxygenase (> 2-fold) and the concentrations of l-kynurenine (> 2.5-fold). In contrast, no significant changes occured in two uninjured regions examined compared to controls, namely cervical spinal cord (C2) and the somatosensory cortex. Further studies of QUIN as a potential contributor to spinal cord injury are warranted.
| Original language | English |
|---|---|
| Pages (from-to) | 314-316 |
| Number of pages | 3 |
| Journal | Brain Research |
| Volume | 632 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 31-12-1993 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Neuroscience(all)
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Increased levels of the excitotoxin quinolinic acid in spinal cord following contusion injury. / Blight, Andrew R.; Saito, Kuniaki; Heyes, Melvyn P.
In: Brain Research, Vol. 632, No. 1-2, 31.12.1993, p. 314-316.Research output: Contribution to journal › Article
TY - JOUR
T1 - Increased levels of the excitotoxin quinolinic acid in spinal cord following contusion injury
AU - Blight, Andrew R.
AU - Saito, Kuniaki
AU - Heyes, Melvyn P.
PY - 1993/12/31
Y1 - 1993/12/31
N2 - Products of inflammatory phagocytes are potential contributors to secondary pathology following spinal cord trauma. In the present study we quantified the levels of the neurotoxin and product of activated macrophages, quinolinic acid (QUIN), in the lower thoracic spinal cord of adult guinea pigs 5 days after brief compression injury. At the injured site (T13), elevations in tissue QUIN levels (> 10-fold) accompanied proportional increases in the activity of indoleamine-2,3 dioxygenase (> 2-fold) and the concentrations of l-kynurenine (> 2.5-fold). In contrast, no significant changes occured in two uninjured regions examined compared to controls, namely cervical spinal cord (C2) and the somatosensory cortex. Further studies of QUIN as a potential contributor to spinal cord injury are warranted.
AB - Products of inflammatory phagocytes are potential contributors to secondary pathology following spinal cord trauma. In the present study we quantified the levels of the neurotoxin and product of activated macrophages, quinolinic acid (QUIN), in the lower thoracic spinal cord of adult guinea pigs 5 days after brief compression injury. At the injured site (T13), elevations in tissue QUIN levels (> 10-fold) accompanied proportional increases in the activity of indoleamine-2,3 dioxygenase (> 2-fold) and the concentrations of l-kynurenine (> 2.5-fold). In contrast, no significant changes occured in two uninjured regions examined compared to controls, namely cervical spinal cord (C2) and the somatosensory cortex. Further studies of QUIN as a potential contributor to spinal cord injury are warranted.
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U2 - 10.1016/0006-8993(93)91167-Q
DO - 10.1016/0006-8993(93)91167-Q
M3 - Article
VL - 632
SP - 314
EP - 316
JO - Brain Research
JF - Brain Research
SN - 0006-8993
IS - 1-2
ER -