Evidence map›Paper›PMID 28447976›Full record

ArticleJournal of visualized experiments : JoVE2017

Method of Direct Segmental Intra-hepatic Delivery Using a Rat Liver Hilar Clamp Model.

Eliza W Beal, Curtis Dumond, Jung-Lye Kim, Khalid Mumtaz, Don Hayes, Ken Washburn, Bryan A Whitson, Sylvester M Black

Open access · greenAbstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 42% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. Article
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

8 authors at 1 institution in 1 country.

Eliza W BealCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Curtis DumondCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Jung-Lye KimCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Khalid MumtazCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Don HayesCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Ken WashburnCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Bryan A WhitsonCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center.
Sylvester M BlackCollaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Lab, Division of Transplant, Department of Surgery, Comprehensive Transplant Center, The Ohio State University Wexner Medical Center; Sylvester.Black@osumc.edu.
The Ohio State University Wexner Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major hepatic surgery with inflow occlusion, and liver transplantation, necessitate a period of warm ischemia, and a period of reperfusion leading to ischemia/reperfusion (I/R) injury with myriad negative consequences. Potential I/R injury in marginal organs destined for liver transplantation contributes to the current donor shortage secondary to a decreased organ utilization rate. A significant need exists to explore hepatic I/R injury in order to mediate its impact on graft function in transplantation. Rat liver hilar clamp models are used to investigate the impact of different molecules on hepatic I/R injury. Depending on the model, these molecules have been delivered using inhalation, epidural infusion, intraperitoneal injection, intravenous administration or injection into the peripheral superior mesenteric vein. A rat liver hilar clamp model has been developed for use in studying the impact of pharmacologic molecules in ameliorating I/R injury. The described model for rat liver hilar clamp includes direct cannulation of the portal supply to the ischemic hepatic segment via a side branch of the portal vein, allowing for direct segmental hepatic delivery. Our approach is to induce ischemia in the left lateral and median lobes for 60 min, during which time the substance under study is infused. In this case, pegylated-superoxide dismutase (PEG-SOD), a free radical scavenger, is infused directly into the ischemic segment. This series of experiments demonstrates that infusion of PEG-SOD is protective against hepatic I/R injury. Advantages of this approach include direct injection of the molecule into the ischemic segment with consequent decrease in volume of distribution and reduction in systemic side effects.

Indexed as

Reperfusion InjuryAnimalsLiverLiver DiseasesMaleModels, AnimalPolyethylene GlycolsRatsRats, Sprague-DawleySuperoxide DismutasePolyethylene Glycolspolyethylene glycol-superoxide dismutaseSuperoxide Dismutase

Identifiers

PMID28447976
PMCPMC5564457
OpenAlexW2600837705

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.