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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 43 (1965), S. 1318-1324 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary An intravenous infusion of angiotensin, following its aldosterone-mobilising, pressor and tubular action was used as a test of mineralocorticoid reserve capacity in a similar way as ACTH in the glucocorticoid reserve capacity testing. In 13 patients suffering from Addison's disease and 13 control persons aldosterone and 17-hydroxycorticosteroids (and in some of them vanilmandelic-acid and homovanilicacid) were estimated in urine before and after angiotensin in a drop infusion and the results confronted with the ACTH stimulation test. The aldosterone output was very low in all patients with Addison's disease and was unchanged after angiotensin. In 2 patients there was a dissociation of the response to ACTH and angiotensin, once as a selective hypoaldosteronism, in another case there was an elevation of aldosterone in response to angiotensin but no elevation of the 17-hydroxycorticosteroids after ACTH. The pressor hyporeactivity to angiotensin in Addison's disease and no change in the urinary sodium potassium ratio during the infusion were of diagnostic value too. There is indirect evidence that the pressor reactivity to angiotensin reflects the andogenous renin and angiotensin. A rapid screening test with angiotensin for this purpose is proposed but only in normotensive persons without major risk. The diuretic action of intravenous angiotensin in ascitic cirrhosis of the liver in 8 patients when all diuretics, including spironolactone and triamterene, had failed, was demonstrated. In a further 4 patients who did not respond to angiotensin or spironolactone separately, a profound diuretic response on giving both together was observed. There was no similar diuretic effect in nephrotic oedema. These results were discussed in the light of the newest knowledge about the renin-angiotensin system.
    Notes: Zusammenfassung Angiotensin II ist bei intravenöser Infusion als dynamischer Test der mineralotropen NNR-Funktionskapazität geeignet, ähnlich wie ACTH zur Bestimmung der Glucokortikoid-Bildungskapazität. Bei 13 Addison-Kranken und bei 13 Kontrollpersonen wurde die Anwendbarkeit dieses Testes mit Untersuchung von Aldosteron, 17-OH-Kortikoiden geprüft, z.T. auch der Vanillinmandelsäure und Homovanillinsäure im Harn. Bei 2 Kranken wurde eine Dissoziation des ACTH- und des Angiotensin-Testes gefunden, einmal im Sinne eines selektiven Hypoaldosteronismus, das zweitemal mit erhaltener Aldosteronstimulierung, jedoch ohne Reaktion der 17-OH-Kortikoide auf ACTH. Diagnostisch wertvoll ist ferner der Befund einer pressorischen Hyporeaktivität auf Angiotensin beim Hypokortizismus und einer abweichenden Natriumausscheidung im Vergleich zu Kontrollpersonen. Es wurde die Frage der Eignung dieses Testes für eine schnelle Orientierung über das endogene Angiotensin in der Praxis — allerdings nur bei Normotonikern — diskutiert. Weiter wurden günstige Ergebnisse bei der Behandlung aszitischer Lebercirrhosen mit Angiotensin II berichtet, die gegenüber einer diuretischen Therapie resistent waren. Bei Unwirksamkeit dieser Behandlung (ungefähr in 1/3 der Kranken) ließ sich eine deutliche Diurese durch gleichzeitige Applikation von Angiotensin II und Aldactone A erreichen, die beide allein wirkungslos waren. Diese Ergebnisse wurden im Zusammenhang mit der Rolle des Renin-Angiotensin-systems besprochen.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 2 (1970), S. 138-142 
    ISSN: 1432-1041
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary A new inhibitor of adrenocortical secretion, amino-glutethimide (Elipten, CIBA) was used to treat 37 patients with secondary hyperaldosteronism and oedema due to congestive heart failure, cirrhosis of the liver and idiopathic oedema. 32 of the 37 patients responded with a significant sodium diuresis secondary to decreased tubular reabsorption of sodium. Their aldosterone excretion fell significantly after Elipten, and the plasma renin activity showed a significant rise. In 2 of the 5 patients resistant to a combination of Elipten with Lasix, a sodium diuresis followed additional treatment with triamcinolone. A skin rash occurred after Elipten in 1 of the 37 patients. — Elipten may be used with advantage for the treatment of selected patients with secondary hyperaldosteronism and oedema. In some ways it is better than the alternative treatment with spironolactones.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 125 (1984), S. 315-323 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 125 (1984), S. 315-323 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography B: Biomedical Sciences and Applications 145 (1978), S. 131-136 
    ISSN: 0378-4347
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 129 (1985), S. 651-657 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography A 200 (1980), S. 221-223 
    ISSN: 0021-9673
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 6 (1973), S. 145-149 
    ISSN: 1432-1041
    Keywords: borderline hypertension ; plasma renin ; betaadrenergic blockade ; sympathetic nervous control of renin secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The influence of beta-adrenergic blockade on plasma renin activity (PRA) was studied in normotensive young men with a hyperkinetic circulation (Group A) and in young men with labile borderline hypertension (Group B). PRA in both groups, when supine and after standing upright for twenty minutes, was significantly lower after intravenous propranolol. The postural increase in PRA was significantly smaller during beta-adrenergic blockade, but the difference between supine and upright levels remained significant. Urinary excretion of adrenaline and noradrenaline was elevated in both groups. In borderline hypertensives, the excretion of noradrenaline did not decrease at night as in Group A subjects. The similarity of the response of PRA to beta-adrenergic blockade in both groups suggests that the quantitative contribution of the sympathetic nervous system to the control of renin secretion does not differ in normotensive and hypertensive subjects with a hyperkinetic circulation.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    International urology and nephrology 12 (1980), S. 83-90 
    ISSN: 1573-2584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Plasma renin activity and plasma aldosterone were determined by radioimmunoassay methods in 20 patients in oliguric phase, in 11 patients in polyuric phase and in 7 patients in convalescent phase of acute renal failure of various origin. The oliguric phase of acute renal failure was characterized by significant increase of plasma renin activity and plasma aldosterone. There was no direct dependence between them. Direct dependence was found between plasma aldosterone and serum potassium in the oliguric phase of acute renal failure, indirect dependence between plasma aldosterone and serum sodium was found before as well as after haemodialysis. These findings prove a direct influence of hyperkalemia and depletion hyponatremia upon aldosterone secretion in the oliguric phase of acute renal failure. Haemodialysis led to a further increase of plasma renin activity caused by ultrafiltration as well as successive dehydration and application of some drugs. The mean value of plasma aldosterone was not significantly changed after haemodialysis. Plasma renin activity decreased very slowly in the polyuric and convalescence phase of acute renal failure, while plasma aldosterone concentration was already in polyuric phase non-significantly different from the control group. There was no direct dependence in the various phases of acute renal failure between plasma renin activity, plasma aldosterone, systolic and diastolic pressure. The renin-angiotensin-aldosterone system significantly participates in the pathogenesis of acute renal failure in man, but various causes of acute renal failure, different drugs, as well as therapeutic procedures do not make it possible to quantify it in detail. Charcoal haemoperfusion in acute poisonings led only to non-significant increase of plasma renin activity and decrease of plasma aldosterone.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1439-6327
    Keywords: Cold exposure/acclimation ; Sympathetic activity ; Cardiovascular functions ; Aldosterone Plasma renin activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this study was to determine whether or not repeated short-term cold water immersions can induce a change in the activity of the sympathetic nervous system and, consequently, in cardiovascular functions in healthy young athletes. Changes in some plasma hormone concentrations were also followed. A single cold water immersion (head-out, at 14°C, for 1 h) increased sympathetic nervous system activity, as evidenced by a four-fold increase (P 〈 0.05) in plasma noradrenaline concentration. Plasma adrenaline and dopamine concentrations were not increased significantly. Plasma renin-angiotensin activity was reduced by half (P 〈 0.05) during immersion but plasma aldosterone concentration was unchanged. Stimulation of the sympathetic nervous system during immersion did not induce significant changes in heart rate, but induced peripheral vasoconstriction (as judged from a decrease in skin temperature) and a small increase (by 10%) in systolic and diastolic blood pressures. No clear change in reactivity of the sympathetic nervous system was observed due to repeated cold water immersions (three times a week, for 6 weeks). Neither the plasma renin-angiotensin activity, aldosterone concentration nor cardiovascular parameters were significantly influenced by repeated cold water immersions. A lowered diastolic pressure and an increase in peripheral vasoconstriction were observed after cold acclimation, however. Evidently, the repeated cold stimuli were not sufficient to induce significant adaptational changes in sympathetic activity and hormone production.
    Type of Medium: Electronic Resource
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