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  • 2000-2004  (2)
  • 1995-1999  (1)
  • Glucose  (2)
  • Key words Carbon budget
  • 1
    Electronic Resource
    Electronic Resource
    Terrestrial influences on the Shiraho fringing reef, Ishigaki Island, Japan: high carbon input relative to phosphate (2000)
    Springer
    Coral reefs 19 (2000), S. 172-178 
    Details
    ISSN: 1432-0975
    Keywords: Key words Carbon budget ; Nutrients ; Total carbon dioxide ; Fringing reef ; Ground water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Measurements of CO2 system parameters and nutrients showed the potential influence of terrestrial inputs on the carbon budget of a fringing coral reef on Ishigaki Island, Japan. Land-derived freshwaters, including river and ground water, make a relatively large contribution (0.5–1.2% by volume) to the water circulation of the reef. These terrestrial waters exhibit extremely high fugacity of CO2 (fCO2 up to 6400 μatm), reflecting enrichments in total alkalinity and dissolved inorganic carbon. Since the dissolved inorganic C:P ratio is anomalously high in terrestrial waters compared with the mean C:P ratios of primary production, excess carbon could be released into the atmosphere. Terrestrial inputs deliver a large quantity of C relative to P. The study site was a source of CO2 at the time of measurement. Such a situation is likely to prevail all year round, and it may occur elsewhere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003380000093
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Glucose dilution can detect fluid redistribution following phentolamine infusion in dogs (2000)
    Springer
    Intensive care medicine 26 (2000), S. 1131-1138 
    Details
    ISSN: 1432-1238
    Keywords: Key words Phentolamine ; Measurement techniques ; Glucose ; Indocyanine green ; Fluid redistribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: We have recently reported that the initial distribution volume of glucose (IDVG) reliably measures the central extracellular fluid (ECF) volume in the presence of fluid gain or loss. However, it is not clear if IDVG consistently reflects central-ECF volume when redistribution of fluid occurs in the absence of fluid gain or loss. This study was designed to investigate changes in fluid volumes during phentolamine infusion in dogs. Design: Prospective animal study. Setting: Institutional animal research laboratory. Subjects: Fourteen anesthetized and ventilated mongrel dogs. Interventions: Anesthetized animals were mechanically ventilated and received infusions of normal saline (n = 7) or phentolamine (10 μg kg min) (n = 7). Plasma volume was estimated using the indocyanine green (ICG) dilution method (PV-ICG) and IDVG was calculated using a one-compartment model by simultaneous administration of ICG 0.5 mg/kg and glucose 100 mg/kg before, during, and after infusion of either drug. Measurements and results: PV-ICG during infusion was not different between groups. However, IDVG significantly decreased (P 〈 0.05) following phentolamine infusion when compared with normal saline infusion. Conclusion: Our results suggest that IDVG rather than PV-ICG consistently measures central extracellular fluid volume, even when redistribution of fluid occurs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340051328
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Detection of histamine-induced capillary protein leakage and hypovolaemia by determination of indocyanine green and glucose dilution method in dogs (1999)
    Springer
    Intensive care medicine 25 (1999), S. 304-310 
    Details
    ISSN: 1432-1238
    Keywords: Key words Histamine ; Protein permeability ; Measurements technique ; Indocyanine green ; Glucose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: The plasma volume of histamine-induced protein capillary leakage may be overestimated when this is determined using the indocyanine green (ICG) dilution method (Vd-ICG), since this dye binds to plasma proteins. The initial distribution volume of glucose (IDVG) has been shown to indicate the central extracellular fluid volume including plasma. Accordingly, the overestimation would be detected by a higher Vd-ICG/IDVG ratio. Our study was intended to examine whether the simultaneous measurement of these two variables can evaluate histamine-induced protein leakage and associated hypovolaemia. Design: Prospective animal study. Setting: Institutional animal research laboratory. Subjects: Twenty-four anaesthetized and ventilated mongrel dogs. Interventions: Anaesthetized animals were mechanically ventilated and received infusions of normal saline (n = 8), histamine 50 μg/kg per h (n = 8), or histamine 100 μg/kg per h. The Vd-ICG and IDVG were calculated using a one-compartment model by simultaneous administration of ICG 0.5 mg/kg, and glucose 100 mg/kg followed by serial arterial blood sampling. Measurements and results: In both histamine groups, a significant elevation of haematocrit and a decrease of plasma albumin concentration were found (p 〈 0.05). Although the IDVG decreased following histamine administration (p 〈 0.05), the Vd-ICG remained unchanged. The Vd-ICG/IDVG ratio increased in a dose-dependent manner after histamine administration (p 〈 0.05), but remained unchanged following normal saline administration. Conclusion: The results suggest that the Vd-ICG/IDVG ratio and the IDVG are useful in evaluating the magnitude of the leakage and hypovolaemia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340050840
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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