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  • 1
    Electronic Resource
    Electronic Resource
    Effect of posture and sleep on pharmacokinetics (1980)
    Springer
    European journal of clinical pharmacology 18 (1980), S. 175-183 
    Details
    ISSN: 1432-1041
    Keywords: amoxycillin ; pharmacokinetics ; bedrest ; sleep ; ambulation ; renal clearance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The pharmacokinetics of amoxycillin in normal male volunteers was studied during the states of bedrest, sleep and ambulation. The absorption and disposition of amoxycillin in ambulatory subjects was found to be comparable to that reported previously by other workers. Serum amoxycillin concentrations were found to be significantly greater during ambulation than during bedrest and sleep. The difference in serum levels resulted from an increased apparent total serum clearance and amoxycillin renal clearance during bedrest and sleep compared to ambulation. No significant differences in the clearance was found between the states of bedrest and sleep. The change in renal clearance of amoxycillin during ambulation was attributed to a diminished renal blood flow. Although the terminal half-life of amoxycillin did not differ significantly, the apparent volume of distribution appears to be much greater during bedrest and sleep than during ambulation. This difference could be explained pharmacokinetically using a two compartment model. No significant difference was found between the rates of absorption of amoxycillin as reflected by the lag time and time to peak serum amoxycillin. The actual values for these parameters would suggest, however, that the absorption of amoxycillin is faster during ambulation than in bedrest and that the absorption rate during sleep is slowest. The clinical implications of the effect of posture and sleep on the pharmacokinetics of amoxycillin are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00561587
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    Paper (German National Licenses)
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  • 2
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    Sodium appetite in sheep induced by cerebral ventricular infusion of angiotensin: comparison with sodium deficiency (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-09
    Description: Intraventricular administration of supraphysiological amounts of renin, nerve growth factor preparation, or angiotensin II greatly increased the consumption of water and hypertonic sodium bicarbonate solution by sheep. These effects were antagonized by intraventricular administration of drugs that prevent the formation of angiotensin II or block its receptors. The fact that these angiotensin-blocking drugs did not change the sodium intake of sodium-deficient sheep challenges the idea that central angiotensin action is involved in sodium appetite due to a deficiency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coghlan, J P -- Considine, P J -- Denton, D A -- Fei, D T -- Leksell, L G -- McKinley, M J -- Muller, A F -- Tarjan, E -- Weisinger, R S -- Bradshaw, R A -- New York, N.Y. -- Science. 1981 Oct 9;214(4517):195-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6169149" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin II/*pharmacology ; Animals ; Appetite/*drug effects ; Drinking Behavior/drug effects ; Injections, Intraventricular ; Nerve Growth Factors/pharmacology ; Renin/pharmacology ; Saralasin/pharmacology ; Sheep ; Sodium/deficiency/*metabolism ; Teprotide/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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