Evidence map›Paper›PMID 33660925›Full record

ArticlePharmacology research & perspectives2021

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

Christopher R Gibson, Alexa Gleason, Eric Messina

Open access · goldAbstract read
In one paragraph

Article in Pharmacology research & perspectives, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Pharmacokinetics of repeated, high-dose fentanyl administration in rats.Drug metabolism and disposition: the biological fate of chemicals · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Christopher R GibsonDepartments of Pharmacokinetics, Pharmacodynamics and Drug Metabolism (CRG), Translational Biomarkers (AG, EM), Merck & Co., Inc., West Point, PA, USA.ORCID 0000-0002-1719-8629
Alexa GleasonDepartments of Pharmacokinetics, Pharmacodynamics and Drug Metabolism (CRG), Translational Biomarkers (AG, EM), Merck & Co., Inc., West Point, PA, USA.
Eric MessinaDepartments of Pharmacokinetics, Pharmacodynamics and Drug Metabolism (CRG), Translational Biomarkers (AG, EM), Merck & Co., Inc., West Point, PA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Indexed as

AnimalsBody WeightDrug Evaluation, PreclinicalFemaleHepatobiliary EliminationLiverMaleRatsRats, Sprague-DawleyRats, WistarRegional Blood FlowUltrasonographyblood flowliverratultrasound

Identifiers

PMID33660925
PMCPMC7931129
OpenAlexW3134669936

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.