Why the study?
Does intravenous angiotensin-II alter local renal blood flow differently in experimental renal neoplasms compared to intact renal tissue in rats?
Does intravenous angiotensin-II alter local renal blood flow differently in experimental renal neoplasms compared to intact renal tissue in rats?
In a rat model, angiotensin-II infusion reduces blood flow less in renal tumors than in normal kidney tissue.
Angiotensin-II effects on renal tumor perfusion remain experimental; leaves open selective vasoconstriction hypotheses for future oncology research.
The effect of angiotensin-II on the local renal blood flow and arterial blood pressure was investigated in the rat with the H2 gas washout technique. Increasing intravenous infusion rates gave a decreasing blood flow and increasing blood pressure, renal vascular resistance being close to proportional to the log of infusion rate. In kidneys with experimental neoplasm, the flow reduction was proportionally less in the tumor than in intact renal tissue. The respective flow levels were maintained for 10 to 45 min without tendency to change.
No takes yet. Share an insight, caveat, or question.
Tvete et al. (1981) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: