Kidney Function
Kidney Function - Related Videos
08:53
Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
0 Views •
Cited by 43 •
2014
The zebrafish adult kidney is an excellent system for renal regeneration and disease studies. An essential aspect of such research is the assessment of nephron structure and function. This protocol describes several methodologies that can be implemented to assess nephron tubule composition and to evaluate renal reabsorption.
08:13
Evaluation of Zebrafish Kidney Function Using a Fluorescent Clearance Assay
0 Views •
Cited by 29 •
2015
The zebrafish is a popular tool to model chronic kidney disease (CKD). However, their small size makes it impossible to evaluate renal function using traditional methods. We describe a fluorescent dye kidney clearance assay1 that allows quantitative analysis of zebrafish kidney function in CKD.
08:19
The Mouse Isolated Perfused Kidney Technique
0 Views •
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.
08:50
Assessment of Vascular Function in Patients With Chronic Kidney Disease
0 Views •
Cited by 25 •
2014
The degree of vascular dysfunction and contributing physiological mechanisms can be assessed in patients with chronic kidney disease by measuring brachial artery flow-mediated dilation, aortic pulse-wave velocity, and vascular endothelial cell protein expression.
10:42
Normothermic Machine Perfusion of Rat Kidneys for Transplantation
0 Views •
2026
This protocol describes the ex vivo normothermic machine perfusion of a rat kidney for subsequent transplantation into a recipient rat.
FAQs
These nephron processes determine whether a drug or its metabolite remains in the circulation or reaches urine. Filtration moves water and small solutes from plasma into the nephron, whereas reabsorption returns selected substances to blood and secretion transfers selected substances into tubular fluid. Their combined activity therefore influences renal clearance and the duration of drug exposure.
When kidney function is reduced, the processes responsible for removing drugs and metabolites may become less effective. Substances can then remain in the body longer, which may extend drug action and alter the appropriate dose. Recognizing this relationship helps pharmacologists and clinicians develop safer treatment plans for patients with renal impairment.
Hormonal signals help regulate electrolytes, acid-base status, and fluid volume, maintaining internal conditions that accompany renal drug handling. These regulated variables provide important physiological context when kidney function is evaluated in pharmacology. Their relevance is greatest when a patient’s renal status may influence drug clearance, treatment duration, or overall safety.
Renal clearance affects how drugs and their metabolites leave the body, so altered kidney function can influence the behavior of more than one treatment. Evaluating renal status helps identify when changes in elimination may modify drug exposure, duration of action, or the consequences of combining medicines. This makes kidney function an important part of interaction assessment.
Assessment provides information about the kidneys’ capacity to remove drugs and metabolites and helps reveal renal impairment. That information supports decisions about dosing and treatment duration while highlighting situations that may require greater attention to safety. During therapy, evaluation can also help detect changes associated with possible nephrotoxicity.
Kidney function indicates whether drug elimination may be altered in a patient with renal impairment. Pharmacologic decisions can then account for the possibility that a medicine or its metabolites will persist longer than expected. Using this information to guide dosing and treatment duration helps reduce avoidable exposure and supports safer therapy.
Nephrotoxicity represents possible drug-related harm to the kidneys, making it distinct from the routine clearance of a drug or metabolite. Monitoring kidney function can help identify this problem while treatment is underway. Early recognition provides a basis for reconsidering pharmacologic management and selecting a safer approach for patients at risk.