Evidence map›Paper›PMID 17387599›Full record

ArticlePharmaceutical research2007

Comparing the lipid membrane affinity and permeation of drug-like acids: the intriguing effects of cholesterol and charged lipids.

Anita V Thomae, Tamara Koch, Christian Panse, Heidi Wunderli-Allenspach, Stefanie D Krämer

Open access · bronzeAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

16 citing papers in PubMed, 55 citations in OpenAlex.

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  13. 110 years of the Meyer-Overton rule: predicting membrane permeability of gases and other small compounds.Chemphyschem : a European journal of chemical physics and physical chemistry · 2009
    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

5 authors at 1 institution in 1 country.

Anita V ThomaeInstitute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Wolfgang-Pauli-Strasse 10, CH-8093 Zurich, Switzerland.
Tamara Koch
Christian Panse
Heidi Wunderli-Allenspach
Stefanie D Krämer
ETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLipid bilayers regulate the passage of solutes into and between cellular compartments. A general prerequisite for this passage is the partitioning of the solute into the bilayer. We investigated the relationship between bilayer partitioning and permeation of three drug-like acids in liposomal systems consisting of phosphatidylcholine alone or mixed with cholesterol or charged lipids. MATERIALS AND

methodsBilayer partitioning was determined by equilibrium dialysis. Bilayer permeation was studied with a luminescence assay which is based on the energy transfer of the permeant to intraliposomal terbium(III).

resultsThe influence of the lipid composition on the pH-dependent membrane affinity was in accordance with the membrane rigidity and possible electrostatic interactions between the acids and the lipids. However, there was no direct relationship between membrane affinity and permeation. This seeming discrepancy was closer analyzed with numerical simulations of the permeation process based on the single rate constants for partitioning and translocation. The simulations were in line with our experimental findings.

conclusionsDepending on the single rate constants and on the geometry of the system, lipid bilayer permeation may positively, negatively or not correlate with the bilayer affinity of the permeant.

Indexed as

Acids, HeterocyclicAlgorithmsAminesBenzoatesChlorobenzoatesCholesterolComputer SimulationHydrogen BondingHydrogen-Ion ConcentrationLipid BilayersLipidsLiposomesNicotinic Acidsortho-AminobenzoatesPermeabilityPhosphatidylcholines2-hydroxynicotinic acidAcids, HeterocyclicAminesanthranilic acidBenzoatesChlorobenzoatesCholesterolLipid BilayersLipidsLiposomesNicotinic Acidsortho-AminobenzoatesPhosphatidylcholinesPhosphatidylinositolsSalicylic Acidstearylamine

Identifiers

PMID17387599
OpenAlexW2084323023

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.