Evidence map›Paper›PMID 19412669›Full record

ArticleThe AAPS journal2009

Role of physiological intestinal water in oral absorption.

Steven C Sutton

Open access · bronzeAbstract read
In one paragraph

Article in The AAPS journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

  1. Pooled it
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  6. Transforming Treatment: The Impact of Bariatric Surgery on Oral Drug Absorption.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
    Review
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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

1 author at 1 institution in 1 country.

Steven C SuttonCollege of Pharmacy, University of New England, 716 Stevens Ave., Portland, ME 04103, USA. ssutton1@une.edu
New England College · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Water volume has impact when the compound has low aqueous solubility. For example, the absorption of compounds with a Biopharmaceutics Classification System class 2 or 4 is likely to be solubility-limited. Provided the formulation does not contribute to a dissolution-limited condition (e.g., particle size, Waterman and Sutton, J Control Release 86:293-304, 2003) and permeability is rapid, any impact on solubility factors in the gastrointestinal (GI) tract will directly impact the fraction absorbed These factors are in situ solubility, precipitation, and volume of water. Using GastroPlus, models were developed with literature values of water volume in the small (SIWV) and large (LIWV) intestines for several solubility limited compounds. One or more models were developed for the mean plasma concentration-time profile of each compound. The consistency of the models with known literature and experimental data for the compounds' solubility and precipitation was determined. The SIWV associated with best fits of solubility limited compounds averaged about 130 ml, with a range of 10-150 ml in the fasted state. The average LIWV in the fasted state was about 10 ml and ranged as large as 125 ml. The wide range of individual LIWV values is likely due to variability in pharmacokinetics, permeability, GI transit, and the observation that data set was collected during a "snapshot in time". The preferred values of 10% organ volume for small intestine and 1-10% organ volume for large intestine are recommended in lieu of the GastroPlus default values of 40% and 10%, respectively.

Indexed as

AnimalsBiopharmaceuticsBody WaterHumansIntestinal AbsorptionIntestinal MucosaIntestine, LargeIntestinesIntestine, SmallModels, BiologicalPermeabilityPharmaceutical PreparationsPharmacokineticsSolubilityPharmaceutical Preparations

Identifiers

PMID19412669
PMCPMC2691455
OpenAlexW2037829106

What OpenQuestion holds

Textmetadata
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.