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  • 1
    ISSN: 0196-9781
    Keywords: Cerebrospinal fluid ; Multiple sclerosis ; Neurologic disease ; Somatostatin ; Substance P
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1459
    Keywords: Huntington's disease ; Chorea ; Cerebrospinal fluid ; Somatostatin ; Substance P ; Cyclic nucleotides ; Family
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 12 Patienten mit Chorea Huntington und 7 Nachkommen aus Chorea-Familien wurden im lumbalen Liquor die Konzentrationen von Somatostatin, Substanz P, zyklischem Adenosinmonophosphat und zyklischem Guanosinmonophosphat radioimmunologisch bestimmt und mit Werten neurologischer Kontrollpatienten verglichen. Während die Konzentration von Substanz P sich in allen Gruppen nicht signifikant voneinander unterschieden, waren die Konzentrationen von Somatostatin bei Patienten mit manifester Chorea und bei den Nachkommen hochsignifikant vermindert. Zyklisches Adenosinmonophosphat war nur bei weit fortgeschrittener Chorea signifikant herabgesetzt. Mögliche Beziehungen der Somatostatin-Verminderung zur Pathophysiologie der Chorea und der Verminderung des zyklischen Nukleotids zur Hirnatrophie werden diskutiert.
    Notes: Summary Somatostatin, substance P, cyclic AMP and cyclic GMP were determined in the cerebrospinal fluid of patients with Huntington's disease, in first generation relatives of choreic patients and in neurological control patients. Substance P levels were not significantly altered, but somatostatin levels were markedly decreased both in affected patients and symptom-free offspring. Cyclic AMP was decreased only in patients with advanced stages of the disease while cyclic GMP was normal. Evidence is discussed which may support a role of somatostatin deficiency in the pathophysiology of chorea.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1459
    Keywords: Somatostatin ; Substance P ; Senile dementia, Alzheimer type ; Cerebrospinal fluid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The concentrations of somatostatin-like immunoreactivity (SLI) and substance-P-like immunoreactivity (SPLI) in lumbar spinal fluid of patients with senile dementia of the Alzheimer type (SDAT), multi-infarct syndrome, communicating hydrocephalus and control patients were determined by specific radio-immunoassay. Mean SLI and SPLI levels were significantly lower in an aged control patient group (mean age 83.5±5.6 years) than in an adult control patient group (mean age 30.8±10 years). In the latter group SPLI levels correlated negatively with age. Mean SLI levels decreased with deterioration in SDAT patients by up to 33% in late dementia. SPLI correlated with SLI in SDAT patients but was decreased significantly only in late dementia patients. Moderate and insignificant decreases of SLI were observed in patients with multi-infarct syndrome or communicating hydrocephalus. Analysis of SLI by gel-permeation chromatography revealed molecular heterogeneity of SLI. At least four peaks of SLI were eluted, two of which had apparent molecular weights of about 10,000 and 15,500, possibly representing somatostatin precursors. The ratio of SRIF to SLI of higher molecular weight was increased in patients with dementia compared to control patients.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1433-8491
    Keywords: Substance P ; Somatostatin ; Chronic pain ; Cerebrospinal fluid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Substance P-like and somatostatin-like immunoreactivities (SPLI and SLI) were determined in ventricular fluid of patients with chronic pain syndromes and in a comparison group with multiple sclerosis, essential tremor, epilepsy and postanoxic myoclonus. Concentrations of SPLI and SLI were non-significantly decreased by 40% and 33% in chronic pain patients as compared with control patients without pain. There were no differences apparent between subgroups of pain patients (deaferentation pain, neoplasia-induced pain, thalamic pain). High pressure liquid chromatography combined with radioimmunoassay showed marked heterogeneity of SPLI and SLI.
    Type of Medium: Electronic Resource
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