OCULAR DISTURBANCES ASSOCIATED WITH EXPERIMENTAL LESIONS OF THE MESENCEPHALIC CENTRAL GRAY MATTER

1937 ◽  
Vol 18 (4) ◽  
pp. 614 ◽  
Author(s):  
ERNEST A. SPIEGEL
Keyword(s):  
Gray Matter ◽  
Central Gray Matter ◽  
Central Gray

Effects of Glycine Administration on Canine Experimental Spinal Spasticity and the Levels of Glycine, Glutamate, and Aspartate in the Lumbar Spinal Cord

Neurosurgery ◽  
1979 ◽  
Vol 4 (2) ◽  
pp. 152-156 ◽  
Author(s):  
J. E. Smith ◽  
P. V. Hall ◽  
M. R. Galvin ◽  
A. R. Jones ◽  
R. L. Campbell
Keyword(s):  
Spinal Cord ◽  
White Matter ◽  
Gray Matter ◽  
Clinical Signs ◽  
Spinal Cord Transection ◽  
Lumbar Spinal Cord ◽  
Central Gray Matter ◽  
Central Gray ◽  
Lumbar Spinal

Abstract Twelve female mongrel dogs were made paraplegic by midthoracic spinal cord transection. Beginning at 9 weeks posttransection, either glycine (50 mg/kg) or saline was injected intramuscularly each day and the signs of spinal spasticity were assessed clinically. After treating the dogs for 3 weeks, we removed the lumbar enlargement of each dog and microdissected it into gray and white areas which we assayed for glycine, glutamate, and aspartate content. Some of the clinical signs of spasticity improved in the animals injected with glycine compared to the saline-injected controls. The content of glycine was significantly elevated in the central gray matter and ventral medial white matter of the glycinetreated dogs. The levels of glutamate were also significantly elevated in the central, lateral ventral, and medial ventral gray matter and in the dorsal lateral and ventral medial white matter of the glycine-treated dogs. The possible role of these segmental putative neurotransmitters in spinal spasticity is discussed.

Effect of electroacupuncture on neuronal activity of the central gray matter of the midbrain

1987 ◽  
Vol 104 (5) ◽  
pp. 1509-1512 ◽  
Author(s):  
Yu. D. Ignatov ◽  
Yu. N. Vasil'ev ◽  
M. S. Butkhuzi ◽  
Z. A. Sakvarelidze ◽  
E. V. Abzianidze ◽  
...  
Keyword(s):  
Neuronal Activity ◽  
Gray Matter ◽  
Central Gray Matter ◽  
Central Gray

Histopathology of transistory traumatic paraplegia in the monkey

1971 ◽  
Vol 35 (3) ◽  
pp. 272-276 ◽  
Author(s):  
Franklin C. Wagner ◽  
George J. Dohrmann ◽  
Paul C. Bucy
Keyword(s):  
Spinal Cord ◽  
Gray Matter ◽  
Internal Layers ◽  
Central Gray Matter ◽  
Microscopic Appearance ◽  
Content Type ◽  
Injured Area ◽  
Hemorrhagic Lesion ◽  
Central Gray ◽  
Fine Print

✓ The microscopic appearance of the primate spinal cord within a 4-hour interval following the delivery of a direct force sufficient to produce a transitory paraplegia was investigated by light microscopy. The resulting hemorrhagic lesion involved primarily the central gray matter and was attributed to the direct effect of the trauma on the vessels in the gray matter with a consequent impairment of blood supply to the injured area. Chromatolysis, vacuolation, and alterations in cytoplasmic density and stainability were observed within the neurons. The edematous changes in the white matter, which were more marked in the internal layers relative to the external layers, appeared minimal and explain in part why the paraplegia was transient.

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