Evidence map›Paper›PMID 27119638›Full record

ArticleBiophysical journal2016

Membrane Cholesterol Modulates Superwarfarin Toxicity.

M Natalia Marangoni, Michael W Martynowycz, Ivan Kuzmenko, David Braun, Paul E Polak, Guy Weinberg, Israel Rubinstein, David Gidalevitz, Douglas L Feinstein

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.4field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
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  8. Article
  9. The Bile Sequestrant Cholestyramine Increases Survival in a Rabbit Model of Brodifacoum Poisoning.Toxicological sciences : an official journal of the Society of Toxicology · 2018
    Article
  10. Article
  11. Article
  12. The Long-Lasting Rodenticide Brodifacoum Induces Neuropathology in Adult Male Rats.Toxicological sciences : an official journal of the Society of Toxicology · 2017
    Article
  13. Review
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

9 authors at 4 institutions in 1 country.

M Natalia MarangoniDepartment of Anesthesiology, University of Illinois-Chicago, Chicago, Illinois.
Michael W MartynowyczDepartment of Physics and the Center for the Molecular Study of Condensed Soft Matter, Illinois Institute of Technology, Chicago, Illinois; X-ray Science Division, Argonne National Laboratory, Lemont, Illinois.
Ivan KuzmenkoX-ray Science Division, Argonne National Laboratory, Lemont, Illinois.
David BraunDepartment of Anesthesiology, University of Illinois-Chicago, Chicago, Illinois.
Paul E PolakDepartment of Anesthesiology, University of Illinois-Chicago, Chicago, Illinois.
Guy WeinbergDepartment of Anesthesiology, University of Illinois-Chicago, Chicago, Illinois; Jesse Brown VA Medical Center, Chicago, Illinois.
Israel RubinsteinJesse Brown VA Medical Center, Chicago, Illinois; Department of Medicine, University of Illinois-Chicago, Chicago, Illinois.
David GidalevitzDepartment of Physics and the Center for the Molecular Study of Condensed Soft Matter, Illinois Institute of Technology, Chicago, Illinois.
Douglas L FeinsteinDepartment of Anesthesiology, University of Illinois-Chicago, Chicago, Illinois; Jesse Brown VA Medical Center, Chicago, Illinois. Electronic address: dlfeins@uic.edu.
University of Illinois Chicago · USArgonne National Laboratory · USIllinois Institute of Technology · USJesse Brown VA Medical Center · US

Funding

Intralipid: A novel frontline countermeasure for brodifacoum poisoningU01NS083457 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FEINSTEIN, DOUGLAS L. · 2013 to 2018
$3.6M
Optimization of Bile Sequestrants to Treat Superwarfarin PoisoningU01NS127746 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI Douglas L. Feinstein · 2022 to 2026
$3.3M
BLRD VA IK6 BX004852NINDS NIH HHS U01 NS083457NINDS NIH HHS U01 NS127746
6 · The paper itself

Abstract

Superwarfarins are modified analogs of warfarin with additional lipophilic aromatic rings, up to 100-fold greater potency, and longer biological half-lives. We hypothesized that increased hydrophobicity allowed interactions with amphiphilic membranes and modulation of biological responses. We find that superwarfarins brodifacoum and difenacoum increase lactate production and cell death in neuroblastoma cells. In contrast, neither causes changes in glioma cells that have higher cholesterol content. After choleterol depletion, lactate production was increased and cell viability was reduced. Drug-membrane interactions were examined by surface X-ray scattering using Langmuir monolayers of dipalmitoylphosphatidylcholine and/or cholesterol. Specular X-ray reflectivity data revealed that superwarfarins, but not warfarin, intercalate between dipalmitoylphosphatidylcholine molecules, whereas grazing incidence X-ray diffraction demonstrated changes in lateral crystalline order of the film. Neither agent showed significant interactions with monolayers containing >20% cholesterol. These findings demonstrate an affinity of superwarfarins to biomembranes and suggest that cellular responses to these agents are regulated by cholesterol content.

Indexed as

1,2-Dipalmitoylphosphatidylcholine4-HydroxycoumarinsAnimalsCell Line, TumorCell MembraneCholesterolDose-Response Relationship, DrugHumansRats1,2-Dipalmitoylphosphatidylcholine4-HydroxycoumarinsbromfenacoumCholesterol

Identifiers

PMID27119638
PMCPMC4850322
OpenAlexW2344345617

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.