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Abstract

Medicine

Transdermal Measurement of Glomerular Filtration Rate in Mice

Published: October 21st, 2018

DOI:

10.3791/58520

1Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, 2Department of Cellular and Molecular Physiology, University of Liverpool, 3MediBeacon GmbH, 4Department of Veterinary Pathology and Public Health, Institute of Veterinary Science, University of Liverpool

Abstract

Transdermal analysis of glomerular filtration rate (GFR) is an established technique that is used to assess renal function in mouse and rat models of acute kidney injury and chronic kidney disease. The measurement system consists of a miniaturized fluorescence detector that is directly attached to the skin on the back of conscious, freely moving animals, and measures the excretion kinetics of the exogenous GFR tracer, fluorescein-isothiocyanate (FITC) conjugated sinistrin (an inulin analog). This system has been described in detail in rats. However, because of their smaller size, measurement of transcutaneous GFR in mice presents additional technical challenges. In this paper we therefore provide the first detailed practical guide to the use of transdermal GFR monitors in mice based on the combined experience of three different investigators who have been performing this assay in mice over a number of years.

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Keywords Transdermal Measurement

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