Evidence map›Paper›PMID 17063398›Full record

ArticlePharmaceutical research2006

Mechanisms responsible for poor oral bioavailability of paeoniflorin: Role of intestinal disposition and interactions with sinomenine.

Zhong Qiu Liu, Zhi Hong Jiang, Liang Liu, Ming Hu

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
0.9field-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

42 citing papers in PubMed, 114 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

4 authors at 2 institutions in 2 countries.

Zhong Qiu LiuDepartment of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas 77030, USA.
Zhi Hong Jiang
Liang Liu
Ming Hu
Hong Kong Baptist University · HKUniversity of Houston · US

Funding

Absorption and Metabolism of IsoflavonesR01CA087779 · NCI · WASHINGTON STATE UNIVERSITY · PI HU, MING · 2002 to 2005
$860k
NCI NIH HHS CA-87779
6 · The paper itself

Abstract

purposeTo determine the intestinal disposition mechanisms of paeoniflorin, a bioactive glucoside, and to investigate the mechanisms by which sinomenine increases paeoniflorin bioavailability. MATERIALS AND

methodsA single-pass "four-site" rat intestinal perfusion model and a cultured Caco-2 cell model were employed.

resultsIn both model systems, paeoniflorin permeability was poor. In the perfusion model, maximal absorption and metabolism of paeoniflorin occurred in duodenum and jejunum, which were significantly decreased by a glucosidase inhibitor gluconolactone (20 mM). On the other hand, paeoniflorin absorption in terminal ileum increased significantly but its metabolism did not in the presence of sinomenine and cyclosporine A. In the Caco-2 cell model, paeoniflorin was transported 48-fold slower than its aglycone (paeoniflorigenin). Absorptive transport of paeoniflorin was significantly (p < 0.05) increased by sinomenine (38%), verapamil (27%), and cyclosporine A (41%), whereas its secretory transport was significantly (p < 0.01) decreased by sinomenine (50%), verapamil (35%) and cyclosporine A (37%). In contrast, MRP inhibitors MK-571 and leukotriene C4 did not affect transport of paeoniflorin. Lastly, sinomenine was also shown to significantly increase the absorptive transport of digoxin (a prototypical p-glycoprotein substrate) and to significantly decrease its secretory transport.

conclusionsPoor permeation, p-gp-mediated efflux, and hydrolysis via a glucosidase contributed to the poor bioavailability of paeoniflorin. Sinomenine (an inhibitor of the p-gp-mediated digoxin efflux) increased paeoniflorin's bioavailability via the inhibition of p-gp-mediated paeoniflorin efflux in the intestine.

Indexed as

AnimalsAnti-Inflammatory Agents, Non-SteroidalATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1BenzoatesBiological AvailabilityBiological TransportBridged-Ring CompoundsCaco-2 CellsCells, CulturedChromatography, High Pressure LiquidDigoxinDrug InteractionsGlucosidesGlycosidesHumansAnti-Inflammatory Agents, Non-SteroidalATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1BenzoatesBridged-Ring CompoundsDigoxinGlucosidesGlycosidesMonoterpenesMorphinanspeoniflorinsinomenine

Identifiers

PMID17063398
OpenAlexW2049328486

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.