Evidence map›Paper›PMID 25182974›Full record

ArticlePharmaceutical research2015

In vivo and in vitro evaluations of intestinal gabapentin absorption: effect of dose and inhibitors on carrier-mediated transport.

Malte Selch Larsen, Sidsel Frølund, Martha Kampp Nøhr, Carsten Uhd Nielsen, Mats Garmer, Mads Kreilgaard, René Holm

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Article in Pharmaceutical research, 2015. 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
1.2field-weighted citation impact, top 23% 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, 15 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Malte Selch LarsenBiologics and Pharmaceutical Science, H. Lundbeck A/S, Ottiliavej 9, 2500, Valby, Denmark.
Sidsel Frølund
Martha Kampp Nøhr
Carsten Uhd Nielsen
Mats Garmer
Mads Kreilgaard
René Holm
University of Copenhagen · DKLundbeck (Denmark) · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeGabapentin exhibits saturable absorption kinetics, however, it remains unclear which transporters that are involved in the intestinal transport of gabapentin. Thus, the aim of the current study was to explore the mechanistic influence of transporters on the intestinal absorption of gabapentin by both in vivo and in vitro investigations

methodsPharmacokinetic parameters were determined following a range of intravenous (5-100 mg/kg) and oral doses (10-200 mg/kg) in rats. Transepithelial transport (50 μM-50 mM) and apical uptake of gabapentin (0.01-50 mM) were investigated in Caco-2 cells. The effect of co-application of the LAT-inhibitor, BCH, and the b(0,+)-substrate, L-lysine, on intestinal transport of gabapentin was evaluated in vivo and in vitro.

resultsGabapentin showed dose-dependent oral absorption kinetics and dose-independent disposition kinetics. Co-application of BCH inhibited intestinal absorption in vivo and apical uptake in vitro, whereas no effect was observed following co-application of L-lysine.

conclusionsThe present study shows for the first time that BCH was capable of inhibiting intestinal absorption of gabapentin in vivo. Furthermore, in Caco-2 cell experiments BCH inhibited apical uptake of gabapentin. These findings may imply that a BCH-sensitive transport-system was involved in the apical and possibly the basolateral transport of gabapentin across the intestinal wall.

Indexed as

Administration, OralAminesAmino Acids, CyclicAnimalsCaco-2 CellsCyclohexanecarboxylic AcidsDose-Response Relationship, DrugGabapentingamma-Aminobutyric AcidHumansInjections, IntravenousIntestinal AbsorptionIntestinal MucosaMaleMembrane Transport ModulatorsMembrane Transport Proteins2-aminobicyclo(2,2,1)heptane-2-carboxylic acidAminesAmino Acids, CyclicCyclohexanecarboxylic AcidsGabapentingamma-Aminobutyric AcidMembrane Transport ModulatorsMembrane Transport Proteins

Identifiers

PMID25182974
OpenAlexW1973454232

What OpenQuestion holds

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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.