Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging

Abstract This short report describes the measurement of total liver blood flow in commonly used laboratory rats using the relatively non‐invasive approach of ultrasound imaging. A total of 29 rats (n = 26 Wistar‐Han, n = 3 Sprague–Dawley) were imaged and both male and female rats were included. The...

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Main Authors: Christopher R. Gibson, Alexa Gleason, Eric Messina
Format: Article
Language:English
Published: Wiley 2021-04-01
Series:Pharmacology Research & Perspectives
Subjects:
Online Access:https://doi.org/10.1002/prp2.731
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author Christopher R. Gibson
Alexa Gleason
Eric Messina
author_facet Christopher R. Gibson
Alexa Gleason
Eric Messina
author_sort Christopher R. Gibson
collection DOAJ
description Abstract This short report describes the measurement of total liver blood flow in commonly used laboratory rats using the relatively non‐invasive approach of ultrasound imaging. A total of 29 rats (n = 26 Wistar‐Han, n = 3 Sprague–Dawley) were imaged and both male and female rats were included. The mean (SD) total liver blood flow of all animals combined was 33.3 ± 7.8 mL/min, or 104.3 ± 17.1 mL/min/kg when normalized to observed body weight at the time of imaging. There was a trend for higher unnormalized total liver blood flow as body weight increased and the female rats had, in general, the lowest body weight and total liver blood flow of the animals studied. There were no major differences in total liver blood flow between the small number of Sprague–Dawley rats used in the study and the larger Wistar‐Han group. Further research would be needed to accurately characterize any subtle differences in body weight between rats of different strains, sexes, and body weight.
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spelling doaj.art-99f9c6df3f204338ada0d02e4d6796ff2022-12-21T19:59:15ZengWileyPharmacology Research & Perspectives2052-17072021-04-0192n/an/a10.1002/prp2.731Measurement of total liver blood flow in intact anesthetized rats using ultrasound imagingChristopher R. Gibson0Alexa Gleason1Eric Messina2Departments of Pharmacokinetics Pharmacodynamics and Drug Metabolism (CRG) Translational Biomarkers (AG, EM)Merck & Co., Inc. West Point PA USADepartments of Pharmacokinetics Pharmacodynamics and Drug Metabolism (CRG) Translational Biomarkers (AG, EM)Merck & Co., Inc. West Point PA USADepartments of Pharmacokinetics Pharmacodynamics and Drug Metabolism (CRG) Translational Biomarkers (AG, EM)Merck & Co., Inc. West Point PA USAAbstract This short report describes the measurement of total liver blood flow in commonly used laboratory rats using the relatively non‐invasive approach of ultrasound imaging. A total of 29 rats (n = 26 Wistar‐Han, n = 3 Sprague–Dawley) were imaged and both male and female rats were included. The mean (SD) total liver blood flow of all animals combined was 33.3 ± 7.8 mL/min, or 104.3 ± 17.1 mL/min/kg when normalized to observed body weight at the time of imaging. There was a trend for higher unnormalized total liver blood flow as body weight increased and the female rats had, in general, the lowest body weight and total liver blood flow of the animals studied. There were no major differences in total liver blood flow between the small number of Sprague–Dawley rats used in the study and the larger Wistar‐Han group. Further research would be needed to accurately characterize any subtle differences in body weight between rats of different strains, sexes, and body weight.https://doi.org/10.1002/prp2.731blood flowliverratultrasound
spellingShingle Christopher R. Gibson
Alexa Gleason
Eric Messina
Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
Pharmacology Research & Perspectives
blood flow
liver
rat
ultrasound
title Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
title_full Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
title_fullStr Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
title_full_unstemmed Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
title_short Measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
title_sort measurement of total liver blood flow in intact anesthetized rats using ultrasound imaging
topic blood flow
liver
rat
ultrasound
url https://doi.org/10.1002/prp2.731
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AT alexagleason measurementoftotalliverbloodflowinintactanesthetizedratsusingultrasoundimaging
AT ericmessina measurementoftotalliverbloodflowinintactanesthetizedratsusingultrasoundimaging