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  • 2005-2009  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Influence of psychiatric comorbidity in alcohol-dependent subjects in a representative population survey on treatment utilization and natural recovery (2005)
    Oxford, UK : Blackwell Science Ltd
    Addiction 100 (2005), S. 0 
    Details
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Background  It is well known that only a minority of alcohol-dependent subjects seek help and that the majority of alcohol-dependent individuals recover without utilization of formal help. Psychiatric comorbidity is highly prevalent among alcohol-dependent individuals. However, no data are available on the impact of psychiatric comorbidity on natural recovery.Aims  To analyse the impact of non-psychotic psychiatric comorbid Axis I disorders on remission rate and utilization of formal help in alcohol-dependent individuals drawn from a representative general population sample in northern Germany (response rate: 70.2%, n = 4075). Psychiatric diagnoses and utilization of help were assessed in a personal interview using standardized instruments. One hundred and fifty-three life-time alcohol-dependent individuals were assessed, among whom 98 fulfilled the criteria for sustained long-term remission according to the Diagnostic and Statistical Manual version II (DSM-IV) criteria. Any coincidence of DSM-IV non-psychotic Axis I disorders with alcohol dependence was counted as comorbidity. Comorbidity rate in the whole sample was 36.1%.Results  The rate of individuals who remitted from alcohol dependence without formal help was 36.9% in the non-comorbid and 42.6% in the comorbid group. Utilization of formal help was unrelated to comorbidity. Dually diagnosed subjects without a history of help-seeking showed minor differences concerning reasons for not seeking help. Seeking help was not related to schooling, severity of dependence and gender.Conclusion  Data reveal that remission without formal help is equally prevalent among non-comorbid as among comorbid alcohol-dependent individuals. Axis I comorbidity is not related directly to utilization of alcohol-related help. Negative prognoses for untreated comorbid alcohol-dependent individuals are not justified from an epidemiological point of view.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1360-0443.2005.01008.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nitrate, a signal relieving seed dormancy in Arabidopsis (2005)
    Oxford, UK : Blackwell Science Ltd
    Plant, cell & environment 28 (2005), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Nitrate is an important nitrogen source for plants, but also a signal molecule that controls various aspects of plant development. In the present study the role of nitrate on seed dormancy in Arabidopsis was investigated. The effects of either mutations affecting the Arabidopsis nitrate reductase genes or of different nitrate regimes of mother plants on the dormancy of the seeds produced were analysed. Altogether, data show that conditions favouring nitrate accumulation in mother plants and in seeds lead to a lower dormancy of seeds with little other morphological or biochemical differences. Analysis of germination during seed development indicated that nitrate does not prevent the onset of dormancy but rather its maintenance. The effect of an exogenous supply of nitrate on seed germination was tested: nitrate in contrast to glutamine or potassium chloride clearly stimulated the germination of dormant seeds. Data show, moreover, that the Arabidopsis dual affinity nitrate transporter NRT1.1 (CHL1) may be involved in conveying the nitrate signal into seeds. Thus, nitrate provided exogenously or by mother plants to the produced seeds, acts as a signal molecule favouring germination in Arabidopsis. This signalling may involve interaction with the abscisic acid or gibberellin pathway.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.2005.01292.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Polymorphisms of transporter associated with antigen processing type 1 (TAP1), proteasome subunit beta type 9 (PSMB9) and their common promoter in African children with different manifestations of malaria (2005)
    Oxford, UK : Blackwell Science Ltd
    International journal of immunogenetics 32 (2005), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The distribution of gene variants of the antigen processing proteins transporter associated with antigen processing type 1 (TAP1) and proteasome subunit beta type 9 (PSMB9) and of their shared bidirectional promoter was assessed in children with either mild or severe malaria. The genetic study was performed on samples collected during a longitudinal study on malariometric indices in an area hyperendemic for Plasmodium falciparum malaria in Gabon. The allele frequencies of the genes did not differ between the mild and the severe malaria groups. The distributions of alleles among children with distinct phenotypes of severe malaria were similar. A negative association of hypoglycaemia with the PSMB9 promoter variant PSMB9-R was found (odds ratio 0.01; χ2 = 12.1; P 〈 0.0005; Pc 〈 0.03). The promoter allele TAP1−446G was associated with hyperparasitaemia and absence of hypoglycaemia. TAP1, PSMB9, and TAP1/PSMB9 promoter alleles were in strong linkage disequilibrium. DNA sequencing of the TAP1/PSMB9 promoter region revealed a previously unrecognized single nucleotide polymorphism 455 bp upstream of the TAP1 transcription start site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.2005.00484.x
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    Paper (German National Licenses)
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