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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 5 (1926), S. 190-191 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Medical microbiology and immunology 150 (1964), S. 108-113 
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Am Beispiel des durch Immunisierung vom Kaninchen künstlich hergestellten Leptospiren-Antikörpers wird ein fluorescenzserologisches Verfahren demonstriert, das bei Verwendung eines fonnolisierten Leptospiren-Antigens Angaben über den Antikörpergehalt des Serums erlaubt. Die Resultate der geschilderten Methode stehen in guter übereinstimmung zu den Ergebnissen der herkömmlichen Agglutinations-Lysis-Reaktion. Die Mitreaktionen anderer Leptospirenarten können, wie bei der Agglutinations-Lysis-Reaktion, durch Verdünnung ausgeschaltet werden. Das Verfahren eröffnet die Möglichkeit, ein über mehrere Monate haltbares „Tot-Antigen“ zur Antikörperbestimmung gegenüber Leptospiren heranzuziehen.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 183 (1953), S. 518-520 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 186 (1955), S. 363-367 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1106
    Keywords: Adenylate cyclase ; Caudate-putamen ; Cortical ablation ; Dopamine ; Somatostatin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Dopamine and somatostatin-14 (SRIF) were incubated with a membrane fraction of rat caudate-putamen (CP) tissue in an adenylate cyclase assay in order to examine the D-1-receptor coupled adenylate cyclase activity 5 days and 3 weeks after unilateral ablation of the left frontal and lateral cortex. Five days after decortication the ipsilateral basal and dopamine stimulated adenylate cyclase activity was increased by about 30% compared to that of the contralateral side. Three weeks after decortication no significant difference could be seen. On either side basal and dopamine stimulated adenylate cyclase activity was not significantly decreased compared to sham operated controls. Somatostatin (10-7 mol/l) reduced basal adenylate cyclase activity of the ipsilateral CP five days following lesioning and reduced the maximal stimulation induced by dopamine. The effects of somatostatin were most marked in the absence and at low concentrations of dopamine (10-7–10-6 mol/l). The effects of somatostatin in the lesioned CP were no longer apparent three weeks following surgery. These results do not favour a presynaptic localization of D-1-receptors on cortico-striate projection fibers and suggest that somatostatin is involved in the interaction of the cortico-striate and nigro-striatal projection systems and may play a role in the regulation of D-1-receptor linked adenylate cyclase.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1106
    Keywords: Adenylate cyclase ; Caudate-putamen ; Dopamine ; Somatostatin ; 6-hydroxydopamine ; Kainic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of somatostatin-14 (SRIF) on dopamine-sensitive adenylate cyclase in caudateputamen pellets was studied in naive female rats, and in rats with chemical lesions of the nigrostriatal dopaminergic tract produced by injecion of 6-hydroxydopamine, or of the caudate-putamen itself produced by injection of kainic acid 3 week earlier. In unlesioned rats somatostatin at a concentration of 10−7 moles/1 inhibited adenylate cyclase activation by submaximal concentrations of dopamine, increasing the apparent Km but not altering Emax. In 6-hydroxydopamine lesioned rats somatostatin no longer influenced adenylate cyclase activity, whereas in kainic acid lesioned rats somatostatin still increased the apparent Km for dopamine activation. The effect of somatostatin in untreated and lesioned rats is compatible with a partial competitive antagonism to dopamine. Although the data from the lesioned rats present preliminary results, the dose response characteristics and the effects in lesioned animals suggest a more complex interaction, possibly by binding of somatostatin to an inhibitory subunit of regulatory adenylate cyclase components.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 18 (1980), S. 429-432 
    ISSN: 1432-1041
    Keywords: glucaric acid excretion ; smokers ; control subjects ; glucaric acid assay ; glucarolactone ; enzyme induction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Glucaric acid (GA) excretion in urine from cigarette smokers and non-smoking control subjects was determined enzymatically. There was no difference between GA 41.0±3.2 µmol/g creatinine (Cn; mean ± SEM) in smokers and GA 43.1±3.4 µmol/g Cn in the controls. Gas chromatographic analysis of the GA-glucarolactone equilibrium was carried out in an attempt to elucidate the striking discrepancies in previous results.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 9 (1960), S. 139-151 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary On the basis of a review of the literature and two individual cases, the recognition and diagnosis of the rare Meningocele sacralis-ventralis is discussed. The “dysraphic” pathogenesis can be accepted as certain. The hitherto unfavourable prognosis is the result of misdiagnosis and exploration through the abdomen. Tumours with a smoothly outlined anterior sacral bone defect, incomplete closure and further signs of dysraphia are pathognomonic. Myelography confirms the diagnosis. Early diagnosis (before pregnancy in the female) and a transacral approach with closure of the neck of the meningocele result in cure.
    Abstract: Résumé D'après les données de la littérature et de deux cas le diagnostic de l'exceptionnel méningocèle sacré antérieur est discuté. La pathogénie dysraphique peut être acceptée comme certaine. Le pronostic peu favorable est la conséquence d'une erreur de diagnostic et d'un abord par l'abdomen. Une tumeur molle qui passe à travers une brèche sacrée antérieure est caractéristique. La myélographie confirme le diagnostic. Un diagnostic précoce et une approche par voie transsacrée avec fermeture du collet du méningocèle permet d'obtenir la guérison.
    Notes: Zusammenfassung An Hand einer Literaturübersicht und zweier eigener Fälle werden Diagnose und Differentialdiagnose der seltenen Meningocele sacralis ventralis besprochen. Die dysraphische Genese konnte gesichert werden. Die bisher ungünstige Prognose ist Folge von Fehldiagnosen und abdominellem Zugang. Tumor mit glattbegrenztem vorderem Kreuzbeindefekt, Spaltbildung und weiteren Zeichen der Dysraphie sind pathognomonisch. Die Myelographie sichert die Diagnose. Frühdiagnose, bei Frauen vor einer Schwangerschaft, und transsacraler Zugang mit Verschluß des Meningocelenstieles führen zur Heilung.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 65 (1975), S. 731-739 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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