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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 10 (1982), S. 1-6 
    ISSN: 1434-0879
    Keywords: Kidney damage ; Haemoglobinuria ; Renal ischaemia ; Shock kidney ; Acute renal failure ; Rats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Male Wistar rats were used to study changes in ultrastructure of proximal renal tubular cells after an haemoglobin (Hb) load with or without temporary renal ischaemia. An i.v. injection of stroma-free Hb was given either 30 min before, immediately after, or 2 h after ischaemia. Appropirate control groups were used for comparison. Electron microscopic examination was performed on kidneys removed 48 h after treatment. Hb transport and degradation was markedly delayed by renal ischaemia. Hetero-ambi-and autolysosomer were found after Hb load, and the number of lysosomes was higher in animals with ischaemia than in sham-operated controls given Hb. Renal cellular damage was more pronounced in rats given Hb either 30 min before or 2 h after ischaemia than in those subjected to either Hb load or ischaemia alone. The findings show deleterious effects of haemoglobinuria in conjunction with renal ischaemia.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 164 (1974), S. 203-221 
    ISSN: 1433-8580
    Keywords: Acute renal failure ; Individual course ; Renal ischemia ; Rabbit ; Histology ; Function ; Plasma renin activity ; Experimentelles akutes Nierenversagen ; Individueller Verlauf ; Renale Ischämie ; Kaninchen ; Histologie ; Funktion ; Plasmareninaktivität
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An 26 Kaninchen wurde der individuelle Verlauf des experimentellen akuten Nierenversagens (ANV) verfolgt und Änderungen der Funktion und Plasmareninaktivität den lichtmikroskopischen morphologischen Schädigungen gegenübergestellt. Trotz identischer auslösender Noxe zeigte der Einzelverlauf starke Variationen der Funktionseinschränkung, der Plasmareninaktivität und histologischer Veränderungen. Zwischen überlebenden (Gruppe A,n = 10) und urämisch sterbenden Tieren (Gruppe B,n = 16) bestand schon vom 1. postischämischen Tag an ein signifikanter Unterschied der Plasmaharnstoffkonzentration und Plasmareninaktivität (P 〈 0,01). Beide Parameter zeigten im weiteren Verlauf trotz erheblicher individueller Streuung ein für jede Gruppe charakteristisches Verhalten. Dagegen waren die morphologischen Schädigungen außerordentlich variabel und erlaubten keine Korrelation zur Einschränkung der Nierenfunktion oder dem Ausmaß der Aktivitätssteigerung des systemischen Renins.
    Notes: Summary The individual course of experimental acute renal failure (ARF) was investigated in 26 rabbits with respect to changes of renal function, plasma renin activity (PRA), and morphology. Although the cause of ARF (i.e. renal ischemia) was identical in all animals the individual course was characterized by a great variability of functional disturbance, alterations of PRA, and the degree of histological impairment. However, already on the first postischemic day a significant difference of both plasma urea concentration and plasma renin activity between group A (surviving,n = 10) and group B (non-surviving animals,n = 16) could be found, a difference that increased in significance during subsequent days of observation. In contrast the morphology was quite variabel and the degree of histological impairment could not be correlated with chance of survival, renal function, and elevation of PRA, respectively.
    Type of Medium: Electronic Resource
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