GLORIA

GEOMAR Library Ocean Research Information Access

Language
Preferred search index
Number of Hits per Page
Default Sort Criterion
Default Sort Ordering
Size of Search History
Default Email Address
Default Export Format
Default Export Encoding
Facet list arrangement
Maximum number of values per filter
Auto Completion
Topics (search only within journals and journal articles that belong to one or more of the selected topics)
Feed Format
Maximum Number of Items per Feed
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Cushing's syndrome
  • Microperfusion
  • Springer  (2)
  • American Heart Association (AHA)
  • Nature Publishing Group (NPG)
  • Oxford University Press
  • 2010-2014
  • 1975-1979  (2)
Document type
Publisher
  • Springer  (2)
  • American Heart Association (AHA)
  • Nature Publishing Group (NPG)
  • Oxford University Press
Years
Year
  • 1
    ISSN: 1432-1440
    Keywords: Cushing-Syndrom ; Hypertonie ; Renin-Aktivität ; Aldosteronismus ; Cushing's syndrome ; Hypertension ; Renin activity ; Aldosteronism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary To investigate the role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome two patients with hypercorticism were infused with 20 mg saralasin (1-sar-8-alaangiotensin II) over a period of 30 minutes under constant blood pressure control. In addition, one patient with primary aldosteronism, an established form of mineralocorticoid hypertension, served as control. Neither in the two patients with Cushing's syndrome nor in the patient with primary aldosteronism could a blood pressure lowering effect of saralasin be observed. In the two patients with hypercorticism both renin activity and plasma aldosterone increased during saralasin infusion. The patient with primary aldosteronism only showed a weak increase in plasma aldosterone concentration. These results seem to exclude an important role of the renin angiotensin system in the pathogenesis of hypertension in Cushing's syndrome. The unresponsiveness of elevated blood pressure to saralasin in the two patients with hypercorticism and in the patient with primary aldosteronism indirectly supports the assumption that in patients with Cushing's syndrome increased mineralocorticoid activity may be the main factor in the pathogenesis of hypertension.
    Notes: Zusammenfassung Um die Bedeutung des Renin-Angiotensin Systems in der Pathogenese der Hypertonie bei Cushing-Syndrom zu untersuchen, wurden bei 2 Patienten mit Hyperkortizismus 20 mg Saralasin (1-Sar-8-Ala-Angiotensin II) über einen Zeitraum von 30 min unter ständiger Blutdruckkontrolle infundiert. Zusätzlich diente ein Patient mit primärem Aldosteronismus, einer etablierten Form von Mineralokortikoidhochdruck, als Kontrolle. Weder bei den 2 Patienten mit Cushing-Syndrom noch bei dem Patienten mit primärem Aldosteronismus ließ sich ein blutdrucksenkender Effekt des Saralasins nachweisen. Die beiden Patienten mit Hyperkortizismus zeigten unter Saralasin sowohl einen Anstieg der Renin-Aktivität als auch des Plasmaaldosterons. Bei dem Patienten mit primärem Aldosteronismus ließ sich nur ein geringgradiger Anstieg der Plasmaaldosteronkonzentration nachweisen. Diese Ergebnisse sprechen gegen eine wichtige Rolle des Renin-Angiotensin Systems in der Pathogenese der Hypertonie bei Cushing-Syndrom. Die Unbeeinflußbarkeit des Hochdrucks durch Saralasin bei den beiden Patienten mit Hyperkortizismus und dem Patienten mit primärem Aldosteronismus stützen indirekt die Annahme, daß bei Patienten mit Cushing-Syndrom eine erhöhte Mineralokortikoidaktivität der Hauptfaktor in der Pathogenese der Hypertonie ist.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Pflügers Archiv 371 (1977), S. 141-145 
    ISSN: 1432-2013
    Keywords: Renal tubule ; Disaccharide reabsorption ; Maltase ; Brush border enzymes ; Microperfusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Renal tubular reabsorption of maltose, sucose and lactose were studied in vivo et situ by continuous microperfusion of single proximal convolutions of rat kidney. The14C-label of maltose (2.5 mmol/l) was removed from the lumen of the proximal tubule at about the same rate as found for glucose. Maltose reabsorption was completely inhibited in presence of 30 mmol/l glucose or of 0.1 mmol/l phlorizin. Chemical analysis of the samples showed a complete conversion of maltose into glucose within a perfusion distance of 2 mm. It is concluded from these results that within the tubular lumen maltose is split very rapidly by a brush border glucosidase. The short half time of this process permits the breakdown product glucose to be almost completely reabsorbed subsequently within the proximal tubule. In contrast, sucrose and lactose were neither split nor reabsorbed by the tubule brush border.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...