Evidence map›Paper›PMID 27296455›Full record

ArticleBMC complementary and alternative medicine2016

Mucosal and blood-brain barrier transport kinetics of the plant N-alkylamide spilanthol using in vitro and in vivo models.

Lieselotte Veryser, Lien Taevernier, Tanmayee Joshi, Pratima Tatke, Evelien Wynendaele, Nathalie Bracke, Sofie Stalmans, Kathelijne Peremans, Christian Burvenich, Martijn Risseeuw and 1 more

Abstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–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

12 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. Pharmacological Characteristics of the Hydroethanolic Extract ofEvidence-based complementary and alternative medicine : eCAM · 2023
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Evidence-based complementary and alternative medicine : eCAM · 2019
    Article
  10. Review
  11. Article
  12. 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

11 authors.

Lieselotte VeryserDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Lien TaevernierDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Tanmayee JoshiC.U. Shah College of Pharmacy, S.N.D.T. Women's University, Santacruz (W), Mumbai, 400 049, India.
Pratima TatkeC.U. Shah College of Pharmacy, S.N.D.T. Women's University, Santacruz (W), Mumbai, 400 049, India.
Evelien WynendaeleDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Nathalie BrackeDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Sofie StalmansDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Kathelijne PeremansDepartment of Medical Imaging and Small Animal Orthopedics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium.
Christian BurvenichDepartment of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium.
Martijn RisseeuwLaboratory of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium.
Bart De SpiegeleerDrug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, B-9000, Ghent, Belgium. Bart.DeSpiegeleer@UGent.be.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundN-alkylamides (NAAs) are a large group of secondary metabolites occurring in more than 25 plant families which are often used in traditional medicine. A prominent active NAA is spilanthol. The general goal was to quantitatively investigate the gut mucosa and blood-brain barrier (BBB) permeability pharmacokinetic properties of spilanthol.

methodsSpilanthes acmella (L.) L. extracts, as well as purified spilanthol were used to investigate (1) the permeation of spilanthol through a Caco-2 cell monolayer in vitro, (2) the absorption from the intestinal lumen after oral administration to rats, and (3) the permeation through the BBB in mice after intravenous injection. Quantification of spilanthol was performed using a validated bio-analytical UPLC-MS(2) method.

resultsSpilanthol was able to cross the Caco-2 cell monolayer in vitro from the apical-to-basolateral side and from the basolateral-to-apical side with apparent permeability coefficients Papp between 5.2 · 10(-5) and 10.2 · 10(-5) cm/h. This in vitro permeability was confirmed by the in vivo intestinal absorption in rats after oral administration, where an elimination rate constant ke of 0.6 h(-1) was obtained. Furthermore, once present in the systemic circulation, spilanthol rapidly penetrated the blood-brain barrier: a highly significant influx of spilanthol into the brains was observed with a unidirectional influx rate constant K1 of 796 μl/(g · min).

conclusionsSpilanthol shows a high intestinal absorption from the gut into the systemic circulation, as well as a high BBB permeation rate from the blood into the brain.

Indexed as

Administration, OralAmidesAnimalsAsteraceaeBiological TransportBlood-Brain BarrierBrainCaco-2 CellsCapillariesEndothelial CellsFemaleHumansIntestinal MucosaMice, Inbred ICRPermeabilityPlant ExtractsAmidesN-isobutyl-2E-decenamidePlant ExtractsPolyunsaturated AlkamidesBlood-brain barrierCaco-2 cellsOral absorptionPlant N-alkylamide spilanthol

Identifiers

PMID27296455
PMCPMC4907212

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Registered trials

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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.