Evidence map›Paper›PMID 35435913›Full record

ArticleJournal of visualized experiments : JoVE2022

Intraventricular Drug Delivery and Sampling for Pharmacokinetics and Pharmacodynamics Study.

Sara Oberrauch, Jing Lu, Linda Cornthwaite-Duncan, Maytham Hussein, Jian Li, Gauri Rao, Tony Velkov

Open access · greenAbstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. 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

7 authors at 4 institutions in 2 countries.

Sara OberrauchDepartment of Biochemistry & Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne.
Jing LuDepartment of Biochemistry & Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne.
Linda Cornthwaite-DuncanDepartment of Biochemistry & Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne.
Maytham HusseinDepartment of Biochemistry & Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne.
Jian LiDepartment of Microbiology, Biomedicine Discovery Institute, Monash University.
Gauri RaoUNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill; raurirao@live.unc.edu.
Tony VelkovDepartment of Biochemistry & Pharmacology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne; tony.velkov@unimelb.edu.au.
RMIT University · AUUniversity of Melbourne · AUDiscovery Institute · USUniversity of North Carolina at Chapel Hill · US

Funding

Pharmacology of intrathecal/intraventricular polymyxins: A systems-based approachR01AI146241 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI RAO, GAURI G, VELKOV, TONY · 2019 to 2023
$3.0M
NIAID NIH HHS R01 AI146241
6 · The paper itself

Abstract

Although the blood-brain barrier (BBB) protects the brain from foreign entities, it also prevents some therapeutics from crossing into the central nervous system (CNS) to ameliorate diseases or infections. Drugs are administered directly into the CNS in animals and humans to circumvent the BBB. The present protocol describes a unique way of treating brain infections through intraventricular delivery of antibiotics, i.e., polymyxins, the last-line antibiotics to treat multi-drug resistant Gram-negative bacteria. A straightforward stereotaxic surgery protocol was developed to implant a guide cannula reaching into the lateral ventricle in rats. After a recovery period of 24 h, rats can be injected consciously and repeatedly through a cannula that is fitted to the guide. Injections can be delivered manually as a bolus or infusion using a microinjection pump to obtain a slow and controlled flow rate. The intraventricular injection was successfully confirmed with Evans Blue dye. Cerebrospinal fluid (CSF) can be drained, and the brain and other organs can be collected. This approach is highly amenable for studies involving drug delivery to the CNS and subsequent assessment of pharmacokinetic and pharmacodynamic activity.

Indexed as

Blood-Brain BarrierCentral Nervous SystemAnimalsAnti-Bacterial AgentsBrainDrug Delivery SystemsInjections, IntraventricularRatsAnti-Bacterial Agents

Identifiers

PMID35435913
PMCPMC10400305
OpenAlexW4221092868

What OpenQuestion holds

Textmetadata
LicenceTDM
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.