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  • Articles: DFG German National Licenses  (3)
  • Free tryptophan  (2)
  • Abscisic acid  (1)
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  • Articles: DFG German National Licenses  (3)
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Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Effects of amitriptyline on serum glutamate and free tryptophan in rats (1982)
    Springer
    European archives of psychiatry and clinical neuroscience 232 (1982), S. 391-394 
    Details
    ISSN: 1433-8491
    Keywords: Serum glutamate ; Free tryptophan ; Amitriptyline ; Depression ; Serum-Glutamat ; freies Tryptophan ; Amitriptylin ; Depression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die chronische Gabe von Amitriptylin (2 Wochen, 10 mg/ kg, i.p.) führte zu einer signifikanten Zunahme von Glutamat und freiem Tryptophan im Serum von Ratten. Dagegen hatte Amitriptylin eine Wirkung weder auf das Gesamttryptophan im Serum noch auf den Glutamatgehalt des Liquors. Diese Ergebnisse bestätigen die Hypothese, daß Antidepressiva für die Zunahme des Serumglutamats bei Depressiven verantwortlich sind.
    Notes: Summary In rats, chronic amitriptyline (14 days, 10 mg/kg, IP) administration resulted in a significant increase in the serum glutamate concentration and concomitant increase in the serum free tryptophan. In contrast, amitriptyline had no effect on the total serum tryptophan or CSF glutamate level. The data confirmed that antidepressant drugs may induce an increase of the serum glutamate concentration in depressive patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00345595
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Levels of total and free tryptophan in the plasma of endogenous and neurotic depressives (1981)
    Springer
    European archives of psychiatry and clinical neuroscience 231 (1981), S. 35-39 
    Details
    ISSN: 1433-8491
    Keywords: Total tryptophan ; Free tryptophan ; Endogenous depression ; Neurotic depression ; Gesamt- und freies Tryptophan ; Endogene Depression ; Neurotische Depression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Gesamt- und freies Tryptophan wurde im Plasma von 34 endogen Depressiven, 20 neurotisch Depressiven und 25 gesunden Kontrollpersonen bestimmt. Während beim Gesamttryptophan kein Unterschied zwischen den drei Gruppen festgestellt werden konnte, war das freie Tryptophan bei endogen Depressiven und neurotisch Depressiven signifikant erniedrigt. Zwischen endogen und neurotisch Depressiven fand sich kein Unterschied.
    Notes: Summary The levels of total and free tryptophan were determined in the plasma of 34 endogenous depressives, 20 neurotic depressives and 25 healthy volunteers. Whilst the levels of total tryptophan were not different in the three groups, the level of free tryptophan was reduced in both endogenous and neurotic depressives. No difference could be found between endogenous and neurotic depressives.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00342828
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Differential expression of two functional serine/threonine protein kinases from soyabean that have an unusual acidic domain at the carboxy terminus (1997)
    Springer
    Molecular genetics and genomics 255 (1997), S. 359-371 
    Details
    ISSN: 1617-4623
    Keywords: Key words Protein phosphorylation ; Osmotic stress Serine protein kinase ; Abscisic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two soybean cDNA clones, SPK-3 and SPK-4, encoding putative protein kinases were isolated and characterized. Both cDNAs encoded approximately 40-kDa serine/threonine kinases with unusual stretches of acidic amino acids in their carboxy-terminal regions, which are highly homologous to PKABA1 from wheat and ASKs from Arabidopsis. These kinases are encoded by one- or two-copy genes in the soybean genome. Notably, SPK-3 and -4 showed different patterns of expression in various soybean tissues. SPK-3 is highly expressed in dividing and elongating tissues of young seedlings but relatively weakly in tissues of mature plants. In contrast, SPK-4 showed relatively high and constitutive expression in all the tissues examined except for leaf tissues of mature plants. Although various stressors, such as dehydration and high salinity, increased the expression of both genes, the induction kinetics were different. The two genes also differed in their response to abscisic acid (ABA). SPK-3 was induced but SPK-4 was not affected by exogenously supplied abscisic acid. In accordance with these expression data analysis of the activity of a chimeric SPK-3 promoter::β-glucuronidase (GUS) reporter gene by transient expression in tobacco leaves confirmed the inducibility of SPK-3 by salt and ABA. Polyclonal antibodies raised against a recombinant SPK-4 protein produced in Escherichia coli specifically recognized both recombinant SPK-3 and -4 proteins. Kinase assays using affinity-purified SPK-4/antibody complexes with crude soybean extracts as substrate identified specific phosphorylation of two 41 and 170 kDa soybean proteins that were phosphorylated on serine residues. Taken together, our results suggest that SPK-3, and/or SPK-4 are functional serine protein kinase(s). Furthermore, SPK-3 and -4 may play different roles in the transduction of various environmental stresses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380050507
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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