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  • 1
    Electronic Resource
    Electronic Resource
    Lowered Serum dipeptidyl peptidase IV activity in patients with anorexia and bulimia nervosa (2000)
    Springer
    European archives of psychiatry and clinical neuroscience 250 (2000), S. 86-92 
    Details
    ISSN: 1433-8491
    Keywords: Key words Anorexia ; Bulimia ; Peptidases ; Dipeptidyl ¶peptidase IV ; Neuropeptides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study was to examine whether anorexia nervosa and bulimia nervosa are accompanied by lower serum activity of dipeptidyl peptidase IV (DPP IV, EC 3.4.14.5), a membrane-bound serine protease that catalyses the cleavage of dipeptides from the amino-terminus of oligo- and polypeptides. Substrates of DPP IV are, amongst others, neuroactive eptides, such as substance P, growth hormone releasing hormone, neuropeptide Y, and peptide YY. DPP IV activity was measured in the serum of 21 women with anorexia nervosa, 21 women with bulimia nervosa and 18 normal women. Serum ¶DPP IV activity was significantly lower in patients with anorexia nervosa and bulimia nervosa than in the normal controls. In the total study group, there were significant and inverse relationships between serum DPP IV activity and the total scores on the Bulimic Investigatory Test, Edinburgh, the Eating Disorder Inventory (EDI) and the Hamilton Depression Rating Scale. In the total study group no significant correlations between DPP IV and age, body weight or body mass index could be found. It is concluded that lowered serum DPP IV activity takes part in the pathophysiology of anorexia and bulimia nervosa. It is hypothesised that a combined dysregulation of DPP IV and neuroactive peptides, which are substrates of DPP IV, e.g. neuropeptide Y and peptide YY, could be an integral component of eating disorders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004060070040
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  • 2
    Electronic Resource
    Electronic Resource
    Growth of ornamental plants irrigated with nutrient or polyethylene glycol solutions of different osmotic potentials (1980)
    Springer
    Plant and soil 56 (1980), S. 99-111 
    Details
    ISSN: 1573-5036
    Keywords: Aster ; Bedding plants ; Celosia ; Coleus ; Growth effects ; Marigold ; NPK solutions ; Osmotic stress ; Petunia ; Polyethylene glycol ; Salinity ; Snapdragon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Six ornamental species (Petunia hybrida, Callistephus hortensis, Coleus blumei, Celosia pyramidalis, Antirrhinum majus andTagetes erecta) were grown in solutions containing high concentrations of polyethylene glycol (MW 4000) or of Nitrogen: Phosphorus: Potassium. At equal osmotic potentials, top dry weight, leaf area and leaf elongation rate were all reduced more by polyethylene glycol than by NPK. Polyethylene glycol also produced some leaf damage which did not occur with NPK solutions. Osmotic potentials of −600 kPa due to NPK reduced growth of the six species by at least 25% compared with growth of control plants (at −20 kPa). Tolerance ranking to high fertilizer in the irrigation solution increased from Snapdragon (most sensitive), Marigold Coleus, Aster, Celosia and Petunia (most tolerant).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02197957
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of temperature on salt uptake by tomato plants with diurnal and noctural waterlogging of salinized rootzones (1980)
    Springer
    Plant and soil 56 (1980), S. 113-121 
    Details
    ISSN: 1573-5036
    Keywords: Drainage ; Lycopersicon esculentum ; Salinity ; Temperature ; Tomato
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Tomato plants were grown at three constant temperatures (10, 20 and 28°C) with drained or waterlogged rootzones and were irrigated with saline solution (0.09M NaCl). Each increase in temperature resulted in an increase in leaf Na-ion and Cl-ion concentrations in plants grown with drained rootzones. However, with plants grown with waterlogged rootzones, maximum leaf concentrations of Na-ions and Cl-ions occurred at 20°C. At 10°C there were no differences between Na-ion and Cl-ion concentrations for drained or waterlogged treatments. At 20 and 28°C, waterlogging of the rootzone resulted in significantly higher concentrations of Na-ions and Cl-ions in leaf and stem tissues than occurred with drained rootzones. There were no differences in Na-ions and Cl-ions and Cl-ions in plant tops if plants were waterlogged with saline solution during the day or night. Transpiration increased significantly with each increase in temperature but showed no other treatment dependent responses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02197958
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Germination and growth of cultivars ofTrifolium subterraneum L. in the presence of sodium chloride salinity (1981)
    Springer
    Plant and soil 62 (1981), S. 221-230 
    Details
    ISSN: 1573-5036
    Keywords: Germination ; Salinity ; Subterranean clover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Germination and growth responses of 15 early to midseason cultivars ofTrifolium subterraneum L. were determined at a range of irrigation water salinities (NaCl). There were significant cultivar differences in seed germination under standard conditions in the presence of pure solutions of NaCl from −10 to −330 kPa osmotic potential range. There were also significant cultivar differences in growth on a clay loam soil with increasing NaCl over the same range of osmotic potentials as used to test germination. There was a generally poor correlation between salt tolerance at germination and at later stages of growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374086
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    Paper (German National Licenses)
    Fulltext
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