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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 11 (1984), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The effects of vasopressin infusion on hepatic artery flow was studied in rats.2. Hepatic artery ligation followed by the infusion of vasopressin (0.08 μU/g body weight per min) decreases portal venous flow and liver blood flow.3. Vasopressin infusion results in an increase in hepatic artery flow and liver blood flow both of which are abolished by subsequent hepatic artery ligation.4. The increase in hepatic artery flow and the decrease in portal venous flow following the infusion of vasopressin is discussed in relation to the management of patients presenting with bleeding oesophageal varices.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    World Patent Information 16 (1994), S. 140-149 
    ISSN: 0172-2190
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Social Science and Medicine 8 (1974), S. 153 
    ISSN: 0037-7856
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Polar biology 23 (2000), S. 329-337 
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Antarctic salps (Salpa thompsoni and Ihlea racovitzai) and their commensal hyperiid amphipods (Vibilia antarctica, Cyllopus lucasii and C. magellanicus) were collected near Elephant Island, in the South Shetland Islands, during 1997 and the salp-rich year 1998. The sterol composition of aggregate S. thompsoni and I. racovitzai (mostly 24-methyl-5,22E-dien-3β-ol, 24-nordehydrocholesterol, cholesterol and trans-dehydrocholesterol) was reflected in the sterol composition of the commensal amphipods and was consistent with a herbivorous planktonic diet. This was not the case for solitary S. thompsoni, with 24-methylenecholesterol as the major sterol. There was a greater abundance of aggregate salp stanols in 1997 (11.7% total sterols) than 1998 (5.2%) and these different stanol levels were reflected in the commensal amphipods. Eicosapentaenoic acid [20:5(n-3)] and docosahexaenoic acid [22:6(n-3)] were the major polyunsaturated fatty acids (PUFA) in all organisms. Octadecapentaenoic acid [18:5(n-3)] comprised 0.4–5.8% (of total fatty acids) in all 1998 salps and amphipods, but was absent in 1997 samples. This suggests a greater presence of dinoflagellates or other species rich in 18:5(n-3) in the “salp year” 1998. Very long chain PUFA (C24, C26, C28) were also only detected in 1998 samples (up to 5.3%), reflecting commensalism and greater presence of dinoflagellates or species containing very long chain PUFA. Examination of the biomarker lipids has provided an indication of trophic interactions for these Antarctic salps and their commensal hyperiid amphipods.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 752-753 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A plug of porous glass about 3 mm in diameter was sealed into 'Pyrex' tubing with 'Araldite' cement and ground flat by hand with water and corundum. The progress of the saturated potassium chloride solution through the dried porous glass plug could be seen as a sharply defined dark area which took ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 35 (1988), S. 685-685 
    ISSN: 1432-1041
    Keywords: morphine slow release tablets ; breast cancer ; respiratory depression ; case report
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1435-2451
    Keywords: Vasopressin ; Portaler Fluß ; Leberdurchblutung ; Ratte ; Cirrhose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Liver blood flow (xenon-133 clearance method) and portal venous flow were mesured in cirrhotic and non cirrhotic rats following the infusion of vasopressin at varying rates. At low rates of infusion, vasopressin had no significant effect on portal venous flow or liver blood flow in cirrhotic or noncirrhotic rats. Infusion of vasopressin at a rate of 0.08 μU/g body wt/min in non-cirrhotic rats and 0.04 and 0.08 μU/g body wt/min in cirrhotic rats decreased portal venous flow and increased liver blood flow. At higher rates of infusion (0.2 μU/g body wt/min in non-cirrhotic rats and 0.16 μU/g body wt/min in cirrhotic rats) these effects were reversed. Furthermore, an infusion of 0.08 μU/g body wt/min vasopressin significantly reduced portal pressure in the cirrhotic rat. However, portal pressure was not significantly altered following an infusion of 0.16 μU/g body wt vasopressin. The implications of these findings in relation to the possible deleterious effects of high rates of vasopressin infusion in the management of portal hypertension and bleeding oesophageal varices is discussed.
    Notes: Zusammenfassung Die Leberdurchblutung (Xenon133 clearance Methode) sowie der portale Fluß werden nach Vasopressin-Infusion verschiedener Geschwindigkeiten, an cirrhotischen und nicht cirrhotischen Ratten gemessen. Bei langsamer Infusion hatte Vasopressin keine signifikante Wirkung auf den portal-venösen oder auf den Leberblutfluß in cirrhotischen oder nicht cirrhotischen Ratten. Die Infusion von Vasopressin mit einer Geschwindigkeit von 0,08 μU/g KG/min in nicht cirrhotischen Ratten und mit 0,04 bzw. 0,08 μU/g KG/min in cirrhotischen Ratten reduziert den portal venösen aber steigert den Leberblutfluß. Bei höherer Infusionsrate (0,2 μ,U/g KG/min in nicht cirrhotischen Ratten und 0,16 μU/g KG/min in cirrhotischen Ratten) wurde dieser Effekt umgekehrt. Darüber hinaus konnte eine VasopressinInfusion von 0,08 μU/g KG/min den portalen Druck bei cirrhotischen Ratten signifikant senken. Dagegen wurde der portale Druck durch Infusion von 0,16 μU/g KG/min Vasopressin nicht signifikant beeinflußt. Die Bedeutung dieser Befunde für eine mögliche deletäre Wirkung hoher Raten von Vasopressin-Infusion in der Behandlung der portalen Hypertension mit blutenden Oesophagus-Varicen wird diskutiert.
    Type of Medium: Electronic Resource
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