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  • 1990-1994
  • 1975-1979  (4)
  • 1977  (4)
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Material
Years
  • 1990-1994
  • 1975-1979  (4)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Migration Inhibition Produced by Sodium Periodate Oxidation of the Macrophage Membrane, and Reversal by Sodium Borohydride (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 6 (1977), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Guinea pig peritoneal exudate cells were harvested 3 to 4 days after the intra-peritoneal injection of Marcol oil. The washed cells were exposed to various concentrations of sodium periodate in phosphate-buffered saline (PBS) at pH 7.4 for 10 min at +4°C. The cells were then used in the in vitro migration assay, and migration was consistently inhibited at concentrations from 10−3 to 10−5M. The viability of the macrophages was not affected by this treatment. Sodium borohydride (10−3 to 10−5M) in PBS for 10 min at pH 7.4 reversed the periodate effect. Experiments with purified macrophages showed that sodium periodate has a direct effect on macrophage function rather than an indirect effect via the potentiation of migration inhibition factor. In support of this, the in vitro spreading of macrophages on glass substrate foe 1 h has been shown to be inhibited. This spreading inhibition can also be reversed by treatment with sodium borohydride. These results provide a new approach to understanding the biological significance and role of macrophage migration inhibition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1977.tb00354.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A study of lung-specific, cell-mediated immunity in chronic pulmonary diseases (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 7 (1977), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Lung-specific, cellular hypersensitivity was studied in patients with chronic pulmonary diseases. To do this, a leucocyte migration inhibition assay was performed using patient and control leucocytes incubated in the presence and absence of a soluble lung extract. Control antigens consisted of liver and kidney extracts. The immunological reactivity of these control antigens was tested by measuring migration, subsequent to incubation of leucocytes from patients with hepatic or renal disease with the liver and kidney extracts, respectively. As a second in vitro test of cell-mediated immunity, a lymphocyte cytotoxicity assay was performed, using as target cells normal chromium-labelled human lung cells.Leucocyte migration inhibition was produced by the lung extract in four out of six patients with chronic bronchitis, five out of seven patients with tuberculosis, one out of five patients with sarcoidosis and in the single patient studied with rheumatoid lung disease. Inhibition did not occur with the leucocytes from control subjects. Neither was migration inhibited when leucocytes from the patients with lung disease were incubated with the control antigens. The reactivity of these control antigens was confirmed by the fact that leucocyte inhibition occurred in two out of three patients with hepatic disease, studied using the liver extract, and in two out of three patients with renal disease, studied with the kidney extract. The cytotoxic potential of anti-lung lymphocytes was demonstrated by the fact that significant target cell cytotoxicity occurred using lymphocytes from two out of four patients with chronic bronchitis, four out of five patients with tuberculosis and in two out of four patients with sarcoidosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1977.tb01484.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative lime requirements of tropical and temperate legumes (1977)
    Springer
    Plant and soil 46 (1977), S. 533-548 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In a field trial using a continuous function design, calcium carbonate was applied to a nitrogen deficient Hawaiian Oxisol at rates which increased along the plant row from 0 to 22 tons/ha, producing a gradient in soil pH from 4.7 to 7.1. Inoculated legumes representing 18 species were grown. Lime response curves showed no distinct general difference between tropical and temperate legumes. Within each group, individual species varied. Responsiveness rankings of species varied depending on criterion of response. The species ranked as follows according to the amount of lime needed for 90% of the maximum attained yield: Coronilla varia (16 tons/ha) 〉 Leucaena leucocephala (11) 〉 Phaseolus vulgaris, Medicago sativa (9–10) 〉 Glycine max var. Kanrich (7) 〉 Glycine wightii var. Cooper, Lotus corniculatus (6) 〉 Glycine wightii var. Tinaroo, Trifolium repens, Trifolium subterraneum (5) 〉 Desmodium canum, Dolichos axillaris, Glycine max var. Kahala (4) 〉 Arachis hypogea, Desmodium intortum, Vigna sinensis (1–2) 〉 Stylosanthes fruticosa, Stylosanthes guyanensis (0.1). The species ranked as follows according to the magnitude of yield increase due to lime: C. varia (20-fold increase) 〉 T. repens (9-fold) 〉 L. leucocephala, D. axillaris, M. sativa (6-fold) 〉 G. wightii var. Tinaroo (5-fold) 〉 P. vulgaris (4-fold) 〉 G. wightii var. Cooper, L. corniculatus (3-fold) 〉 D. canum, D. intortum, T. subterraneum (2-fold) 〉 A. hypogea, G. max, S. fruticosa, S. guyanensis, V. sinensis (30–50%). Improved calcium availability could account for plant responses to lime rates over 3 to 4 tons/ha. Only 4 tons CaCO3 sufficed to raise soil pH to 6 and depress solution aluminum and manganese to low concentrations, but 6 tons were needed to raise soluble calcium to 1 meq/l and 20 tons to raise it to 3 meq/l.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015912
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of lime on nitrogen fixation by tropical and temperate legumes (1977)
    Springer
    Plant and soil 46 (1977), S. 591-601 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A nitrogen deficient Oxisol which had been fertilized with P, K, Zn and Mo received CaCO3 at rates which increased continuously from zero to 22 tons/ha. Liming produced a range of pH in the saturation paste from 4.7 to 7.1; a range of calcium in the saturation extract from 0.3 to 3 meq/l; and a significant decline in available manganese. Responses of 9 tropical and 7 temperate legumes were compared across the pH variable. For Stylosanthes spp. nodule numbers and weight and plant yield declined above pH 5.5. Arachis hypogaea and Vigna sinensis, whose yield increased by only 30%, showed no clear improvement in nodulation or nodule effectiveness (acetylene reduction rate per unit nodule weight). Increased nodule effectiveness could account for most of the growth increase in Dolichos axillaris and Glycine max var. Kahala. Both the number and effectiveness of nodules increased for Desmodium intortum, Glycine wightii, Medicago sativa, and Trifolium subterraneum. Nodule size and effectiveness increased for G. max var. Kanrich. Only in one species, Coronilla varia, could increase in nodule numbers alone account for the increased growth associated with liming, although increased numbers of nodules probably accounted for much of the response by Lotus corniculatus, and by Desmodium canum and D. intortum up to pH 5.3. Increased nodulation and plant N contents were consistent with the conclusion that for most species improved N2-fixation was the cause of growth improvement associated with liming. However, percent N was high in leaves of Vigna and Phaseolus vulgaris at all lime levels. In Phaseolus, variation in nodulation and growth were unrelated. The growth improvement was associated with decline in leaf N, suggesting that something other than N nutrition was limiting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015918
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    Paper (German National Licenses)
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