title: Cerebrospinal fluid immunoreactive substance P and somatostatin in neurological patients with peripheral and spinal cord disease.
abstract: We have measured substance P-like (SPLI) and somatostatin-like (SLI) immunoreactivities in cerebrospinal fluid of 49 patients with peripheral (polyneuropathy, lumboischialgia) and spinal cord disease and in 16 control patients. The patient groups showed significantly higher CSF SPLI levels than controls while the mean SLI levels were unchanged. Fractionated sampling of CSF (total volume 30 ml) in 20 patients with various neurological diseases showed no significant differences between early and late fractions for SLI. In contrast, lumbar-cisternal concentration gradients were negative for SPLI, total protein and IgG, and positive for the dopamine metabolite homovanillic acid and the serotonin metabolite 5-hydroxyindolacetic acid. This suggests that SPLI may be released into the lumbar CSF from lower levels of the neuraxis, presumably the spinal cord and spinal ganglia, whereas SLI stems from diffuse CSF secretion without spinal preponderance.
authors: Department of Neurology, University of Freiburg, F.R.G.
authors: H
authors: H
authors: Cramer
authors: N
authors: N
authors: Rösler
authors: K
authors: K
authors: Rissler
authors: M C
authors: MC
authors: Gagnieu
authors: B
authors: B
authors: Renaud
mesh_terms: D000328:Adult; D002556:Cerebrospinal Fluid Proteins / Q000032:analysis; D005260:Female; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid; D006801:Humans; D006897:Hydroxyindoleacetic Acid / Q000134:cerebrospinal fluid; D007074:Immunoglobulin G / Q000134:cerebrospinal fluid; D008297:Male; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000134:cerebrospinal fluid*; D012016:Reference Values; D013004:Somatostatin / Q000134:cerebrospinal fluid* / Q000276:immunology; D013118:Spinal Cord Diseases / Q000134:cerebrospinal fluid*; D013373:Substance P / Q000134:cerebrospinal fluid* / Q000276:immunology
chemical_list: D002556:Cerebrospinal Fluid Proteins; D007074:Immunoglobulin G; D013373:Substance P; D013004:Somatostatin; D006897:Hydroxyindoleacetic Acid; D006719:Homovanillic Acid