Evidence map›Paper›PMID 24786847›Full record

ArticleMolecules (Basel, Switzerland)2014

Effects of piperine on the intestinal permeability and pharmacokinetics of linarin in rats.

Xinchi Feng, Youping Liu, Xin Wang, Xin Di

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
  2. Evaluation ofJMIR research protocols · 2026
    Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. 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

4 authors at 1 institution in 1 country.

Xinchi FengSchool of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China. fengxinchi19880211@163.com.
Youping LiuSchool of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China. yp-liu@163.com.
Xin WangSchool of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China. wangxin68k@163.com.
Xin DiSchool of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China. dixin63@hotmail.com.
Shenyang Pharmaceutical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although linarin possesses diverse pharmacological activities, its poor oral bioavailability has been a concern for further development. The present study aimed to demonstrate the feasibility of improving the oral absorption of linarin in rats with a bioenhancer‒piperine. First, the intestinal permeability of linarin in the presence and absence of verapamil or piperine was investigated using an in situ single-pass rat intestinal perfusion method. A significant increase in the Peff when co-perfused with verapamil or piperine indicated that piperine effectively inhibited P-glycoprotein mediated efflux of linarin. Then, the pharmacokinetic profiles of linarin in rats after oral administration of linarin (50 mg/kg) alone and in combination with piperine (20 mg/kg) were determined using a validated LC-MS/MS method. The results showed that piperine increased the plasma exposure (AUC) of linarin by 381% along with an increase in the Cmax by 346% and the Tmax from 0.05 h to 0.2 h. The present study revealed that piperine significantly enhanced the oral absorption of linarin in rats by inhibiting P-glycoprotein mediated cellular efflux during the intestinal absorption and likely simultaneously by inhibiting the metabolism of linarin.

Indexed as

Biological AvailabilityAdministration, OralAlkaloidsAnimalsBenzodioxolesGlycosidesHumansIntestinal AbsorptionPermeabilityPiperidinesPolyunsaturated AlkamidesRatsTandem Mass SpectrometryAlkaloidsBenzodioxolesGlycosideslinarinPiperidinespiperinePolyunsaturated Alkamides

Identifiers

PMID24786847
PMCPMC6271293
OpenAlexW2092727908

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.