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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 47 (1986), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Catecholamine turnover in brain areas innervated by dopaminergic neurons was examined 2, 6, and 12 days after bilateral, N-methyl-D-aspartate lesions confined to the rat medial prefrontal cortex. The lesion produced a significant regional increase in the concentration of 3,4-dihydroxyphenylethylamine (DA, dopamine) in both the medial prefrontal cortex and the ventral tegmental area. DA concentrations were increased in the nucleus accumbens on day 6 (128% of control), in the ventral tegmental area on day 2 (130% of control), and in the medial prefrontal cortex on days 2 (145% of control) and 6 (127% of control). The only significant changes in the concentration of 3,4-dihydroxyphenylacetic acid (DOPAC) (197% of control), and in the ratio DOPAC/DA (163% of control) were found in the medial prefrontal cortex on day 6 post-lesion. All parameters had returned to control levels by day 12. DA depletion after the administration of α-methyl-p-tyrosine (AMPT) was not significantly different between excitotoxin-lesioned and sham animals on day 6 in all brain regions. Noradrenaline (NA) and 3,4-dihydroxyphenylethyleneglycol concentrations and their ratios, and the depletion of noradrenaline after AMPT were also determined, and the lesion resulted in a significant regional increase in NA in both the nucleus accumbens and the ventral tegmental area. An elevation of NA (147% of control) in the nucleus accumbens was found on day 12. Since the excitotoxin lesion destroys corticofugal efferents from medial prefrontal cortex to the nucleus accumbens, the anterior corpus striatum and the ventral tegmental area, our results provide no evidence for a role of these cortical projections in the regulation of subcortical DA metabolism. Corticofugal efferents from the medial prefrontal cortex do appear to exert a modulatory effect over NA stores of the nucleus accumbens.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. A multicentre trial was conducted to compare the efficacy and side-effects of an intramuscularly administered PGE2 analogue and vacuum aspiration in women with a delay of up to 21 days in the expected onset of menses. A total of 473 such women were randomly allocated to treatment with either 16-phenoxy-W-17, 18, 19, 20-tetranor PGE2 methyl sulfonylamide (three intramuscular injections of 0.5 mg at 3-h intervals) or vacuum aspiration, and the outcome of therapy assessed 1, 2 and 6–8 weeks later. Retrospective analysis of hCG levels indicated that 419 (88.6%) women had been pregnant at the time of treatment. With few exceptions, administration of the PGE2 analogue induced vaginal bleeding in both pregnant and non-pregnant women but the duration and subjectively perceived amount of bleeding were greater than after vacuum aspiration. Both treatments were equally effective. In pregnant women the overall frequency of complete abortion was 91% for prostaglandin treatment and 94% for vacuum aspiration. If non-pregnant women were included, the respective success rates (i.e. percentages of women not pregnant 2 weeks after treatment) were 92% and 95%. Gastrointestinal side-effects and lower abdominal pain requiring intramuscular analgesia were more common after prostaglandin therapy than following vacuum aspiration in both pregnant and non-pregnant women.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 38 (1989), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In a series of growth room experiments, a determinate line of Vicia faba was shown to be more susceptible to infection by Ascochyta fabae than a conventional indeterminate line. On the determinate line, lesions developed more quickly on younger leaves. No evidence of systemic infection was found and disease transfer to the emerging seedling was probably by physical contact with the infected seed testa. Successful establishment of the disease required leaf wetness for periods of 4 h at 20–25° C to 12 h at 10 C. The rate of pycnidiospore germination on leaves decreased with temperature over this range, but did not differ between the determinate and indeterminate lines.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial and engineering chemistry 14 (1975), S. 281-281 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric nephrology 7 (1993), S. 232-232 
    ISSN: 1432-198X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 15 (1979), S. 193-197 
    ISSN: 1432-1041
    Keywords: norethisterone ; rifampicin ; enzyme induction ; antipyrine ; 6 beta-hydroxycortisol ; gamma-glutamyltranspeptidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of norethisterone have been studied in 8 women during and one month after treatment with rifampicin (450–600 mg/day). Rifampicin caused a significant reduction in the A. U. C. of a single dose of 1 mg norethisterone from 37.8±13.1 to 21.9±5.9 ng/ml X h (p〈0.01). The plasma norethisterone half life (β-phase) was also reduced from 6.2±1.7 to 3.2±1.0 h (p〈0.0025). In one additional woman on long term oral contraceptive therapy the 12 hour plasma norethisterone concentration was reduced by rifampicin from 12.3 ng/ml to 2.3 ng/ml. Rifampicin caused a significant increase in antipyrine clearance, 6β-hydroxycortisol excretion and plasma gamma-glutamyltranspeptidase activity but there were no significant correlations between changes in these indices of liver microsomal enzyme induction. There was a significant correlation between the percentage increase in antipyrine clearance and the percentage decrease in norethisterone A. U. C. during rifampicin. The changes in norethisterone pharmacokinetics during rifampicin therapy are compatible with the known enzyme inducing effect of rifampicin.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Environmental management 1 (1977), S. 213-226 
    ISSN: 1432-1009
    Keywords: Environmental Impact Quantification ; Environmental Studies ; Land Use Environmental Assessment ; Texas ; U.S. of A. ; Environmental Indices ; Environmental Methodology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A method is presented which combines environmental indices and estimates of inputs from various land uses to aid in environmental impact assessments. Unweighted pair/group cluster analyses are used to obtain relationships between easily observable environmental indices, such as vegetation types, soils, and geology, based on their mutual recurrence. These relationships are shown by using an ordination technique which shows the nature of complex impacts on a natural system. Results are used to develop anenvironmental effects sequence diagram based on known scientific and engineering principles and observed natural relationships. The diagram may be used in conjunction with land use data to estimate the possible magnitude of impacts on the pre-existing system which may result from such land use. Several examples are developed which quantify inputs from various land uses and which compare them with environmental inputs including point source and non-point source liquid and atmospheric emmissions, land modifications, and resource consumption. Known average values are used and a separate comparison is made in describing the vast differences between the project phases of construction versus longterm operation. A hypothetical environmental impact assessment is given for a small residential development in Chambers County, Texas, U.S. of A.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Environmental management 1 (1977), S. 295-295 
    ISSN: 1432-1009
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have screened fourteen kindreds with X-linked hypophosphataemic rickets with four microsatellite markers, viz. AFM163yh2, DXS999 (AFM234yf12), DXS443 and DXS365, in order to refine the genetic map flanking the gene, and to define a close flanking interval for the construction of a yeast artificial chromosome (YAC) and cosmid contig. The genetic data were enhanced after the isolation of a large 1.2-megabase YAC derived from AFM163yh2, in which marker DXS274 was present but not DXS365 or DXS443. Against HYP, DXS365, AFM163yh2 and DXS443 showed no recombinants (Z max = 18.1, Z max = 9.9, and Z max = 16.0 respectively). DXS999 gave Z max = 9.6 at 4% recombination and lies distal to HYP but proximal to DXS197 and DXS43. The disease gene and markers AFM163yh2 and DXS365 are flanked by DXS443 and DXS274. Combining the genetic and physical data, we are able to propose the following gene marker order: Xptel-DXS43-DXS197-DXS999-DXS443-[(DXS365-AFM163yh2), HYP]-DXS274-DXS41-Xcen.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Three polymorphic markers have been used to improve the genetic map of the region Xp22.1-p22.2, which contains the HYP (hypophosphataemic rickets) locus. DXS365 gave no recombinants with HYP, with a peak Lod score of 5.4 at θ = 0.0. A microsatellite marker mPA274 was derived for the DXS274 locus; it detects five alleles with a polymorphism information content of 0.55. Combining information from this microsatellite and the original DXS274 marker, probe CRI-L1391, the peak Lod score for DXS274 against HYP was 9.6 at θ = 0.02. A microsatellite associated with the DXS207 locus (mPA207) gave a peak lod score against HYP of 4.7 at θ = 0.14. A consideration of key recombinants and multilocus analysis suggests the gene order: Xpter-DXS207-DXS43-DXS197-(DXS365, HYP)-DXS274-DXS41-Xcen.
    Type of Medium: Electronic Resource
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