Evidence map›Paper›PMID 27403663›Full record

ArticlePloS one2016

Time Varying Apparent Volume of Distribution and Drug Half-Lives Following Intravenous Bolus Injections.

Carl A Wesolowski, Michal J Wesolowski, Paul S Babyn, Surajith N Wanasundara

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. PET imaging of alpha-synuclein: from radiotracer design through in vitro and in vivo translation.European journal of nuclear medicine and molecular imaging · 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

4 authors.

Carl A WesolowskiDepartment of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Michal J WesolowskiDepartment of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Paul S BabynDepartment of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Surajith N WanasundaraDepartment of Medical Imaging, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.ORCID http://orcid.org/0000-0003-0939-1039

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present a model that generalizes the apparent volume of distribution and half-life as functions of time following intravenous bolus injection. This generalized model defines a time varying apparent volume of drug distribution. The half-lives of drug remaining in the body vary in time and become longer as time elapses, eventually converging to the terminal half-life. Two example fit models were substituted into the general model: biexponential models from the least relative concentration error, and gamma variate models using adaptive regularization for least relative error of clearance. Using adult population parameters from 41 studies of the renal glomerular filtration marker 169Yb-DTPA, simulations of extracellular fluid volumes of 5, 10, 15 and 20 litres and plasma clearances of 40 and 100 ml/min were obtained. Of these models, the adaptively obtained gamma variate models had longer times to 95% of terminal volume and longer half-lives.

Indexed as

Models, BiologicalAdultGlomerular Filtration RateHalf-LifeHumansInjections, IntravenousMetabolic Clearance RateTechnetium Tc 99m PentetateTechnetium Tc 99m Pentetate

Identifiers

PMID27403663
PMCPMC4942076

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.