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  • 1
    ISSN: 1432-1440
    Keywords: Volume depletion ; Renovascular hypertension ; Renin-angiotensin-system ; Blood pressure ; Prostaglandins ; Extrazelluläre Volumenrestriktion ; Renovasculäre Hypertonie ; Renin-Angiotensin-System ; Blutdruck ; Prostaglandine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei normotensiven und renal hypertensiven Ratten, die kochsalzarm oder kochsalznormal ernährt wurden, wurde der Effekt des Cyclooxygenasehemmers Indomethacin (3,4 mg/kg/24 h) auf den systolischen Blutdruck und die Plasma-Renin-Aktivität untersucht. Indometacin reduzierte die Plasma-Renin-Aktivität in kochsalzarm und kochsalznormal ernährten, normotensiven und hypertensiven Tieren. Darüberhinaus erniedrigte Indomethacin den systolischen Blutdruck in salz-arm ernährten Ratten, erhöhte jedoch den Blutdruck in salz-normal ernährten Tieren. Diese Befunde lassen vermuten, daß der Effekt von Indomethacin auf den Blutdruck von Ratten vom Extrazellulärvolumen und der Plasma-Renin-Aktivität abhängt.
    Notes: Summary The effect of the cyclooxygenase inhibitor indomethacin (3.4 mg/kg/24 hr) on systolic blood pressure (PB) and plasma-renin-activity (PRA) was evaluated in normotensive and renovascular hypertensive rats receiving either a normal or low salt diet. Indomethacin reduced PRA in normal and hypertensive animals on both low and normal salt intake. Indomethacin furthermore, decreased BP in animals on low sodium diet but increased PB in sodium repleted rats. These data suggest that the effect of indomethacin on rat BP may depend on the state of extracellular volume and PRA.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-0879
    Keywords: Renal ischemia ; Renal protection and preservation ; Cardioplegic solution HTK
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The cardioplegic solution HTK of Bretschneider was used for canine kidney protection. The kidneys were perfused with this solution for 6–10 min prior to the induction of ischemia. The kidneys were left in-situ for 60, 90, 120 and 135 min ischemia time at a temperature of 25–34°C (n=13). As a control group we used unilateral nephrectomized dogs (n=9). After unilateral nephrectomy an elevated plasma creatinine in comparison to preoperative values was observed. After 60 and 90 min under HTK-protection the postoperative plasma creatinine was not elevated compared to the control group. After 120 min of ischemia creatinine level was slightly increased to an average of 2.1 mg% on the first and second postoperative day. These experiments indicate the protective effect of the cardioplegic solution for canine kidney preservation in situ.
    Type of Medium: Electronic Resource
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