Renal Perfusion
Renal Perfusion - Related Videos
10:42
Normothermic Machine Perfusion of Rat Kidneys for Transplantation
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2026
This protocol describes the ex vivo normothermic machine perfusion of a rat kidney for subsequent transplantation into a recipient rat.
18:48
Murine Renal Transplantation Procedure
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Cited by 20 •
2009
Renal transplantation in mice is a technically challenging procedure that requires careful post-operative care and treatment for success.
08:19
The Mouse Isolated Perfused Kidney Technique
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Cited by 24 •
2016
The mouse isolated perfused kidney (MIPK) is a technique for keeping a mouse kidney under ex vivo conditions perfused and functional for 1 hr. The buffers and surgical technique are described in detail.
06:38
Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats
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Cited by 14 •
2016
Early stage hemodynamic dysfunction is critical to the development of kidney disease. Yet, detection methodologies are limited. Recent advances in sonography provide a noninvasive, accurate option for early detection of kidney injury. This study outlines a step-by-step, sonographic methodology for detecting kidney dysfunction using a drug-induced nephrotoxicity rat model.
08:12
Normothermic Ex Vivo Kidney Perfusion for the Preservation of Kidney Grafts prior to Transplantation
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Cited by 43 •
2015
The severe organ shortage has resulted in increased use of marginal kidney grafts for transplantation. This has triggered interest in alternative storage methods, since marginal grafts especially tolerate cold storage poorly. The technique of normothermic ex vivo kidney perfusion (NEVKP) represents a novel preservation method for kidney grafts prior to transplantation.
FAQs
Stability depends on coordinated changes in afferent and efferent arteriole tone. These vascular adjustments alter renal vascular resistance and help preserve relatively consistent renal blood flow and glomerular filtration when arterial pressure changes. Their interaction provides the hemodynamic basis for examining how pharmacological interventions modify kidney function rather than treating filtration as independent of vascular conditions.
Autoregulation helps maintain renal blood flow and filtration across varying arterial pressures, so drug effects must be interpreted against this built-in control system. A vasoactive compound may influence vascular tone, while the kidney may adjust arteriolar resistance in response. Understanding that interaction helps distinguish direct pharmacological effects from changes arising through the kidney’s normal hemodynamic compensation.
Renal vascular resistance links vascular tone with the amount of blood available for filtration. When resistance changes, renal blood flow and filtration may also change, influencing electrolyte handling, waste removal, and renal clearance. Pharmacological studies therefore assess hemodynamics alongside kidney function to determine whether an observed outcome reflects altered perfusion, filtration, or a related renal process.
Assessment focuses on how renal blood flow, vascular resistance, autoregulatory behavior, and filtration respond under defined conditions. Measurement or modeling can compare kidney function before and after pharmacological influences and examine responses to changing arterial pressure. These approaches provide a framework for connecting hemodynamic changes with filtration, electrolyte balance, waste removal, and blood pressure regulation.
Studies may examine vasoactive drugs, diuretics, nonsteroidal anti-inflammatory drugs, and renin-angiotensin system inhibitors. The purpose is not simply to list drug classes, but to evaluate how each influences kidney function through relationships involving renal hemodynamics and filtration. Such comparisons support assessment of therapeutic effects and recognition of potential drug-induced kidney injury.
Renal perfusion provides essential hemodynamic context for renal clearance because filtration depends on blood delivery and the regulation of vascular resistance. Changes in perfusion can therefore alter how kidney function is interpreted when studying drug handling. Pharmacological models use this relationship to connect vascular effects with filtration and to inform therapeutic decisions involving renal function.