Evidence map›Paper›PMID 23216060›Full record

ArticleThe Biochemical journal2013

Catalytic detoxification of nerve agent and pesticide organophosphates by butyrylcholinesterase assisted with non-pyridinium oximes.

Zoran Radić, Trevor Dale, Zrinka Kovarik, Suzana Berend, Edzna Garcia, Limin Zhang, Gabriel Amitai, Carol Green, Božica Radić, Brendan M Duggan and 3 more

Abstract read
In one paragraph

Article in The Biochemical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Counteracting poisoning with chemical warfare nerve agents.Arhiv za higijenu rada i toksikologiju · 2020
    Review
  9. Review
  10. Resurrection and Reactivation of Acetylcholinesterase and Butyrylcholinesterase.Chemistry (Weinheim an der Bergstrasse, Germany) · 2019
    Review
  11. Article
  12. Crystal structures and Hirshfeld surfaces of four meth-oxy-benzaldehyde oxime derivatives, 2-MeO-Acta crystallographica. Section E, Crystallographic communications · 2018
    Article
  13. Different classical hydrogen-bonding patterns in three salicylaldoxime derivatives, 2-HO-4-Acta crystallographica. Section E, Crystallographic communications · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

13 authors.

Zoran RadićSkaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, CA 92093, USA. zradic@ucsd.edu
Trevor Dale
Zrinka Kovarik
Suzana Berend
Edzna Garcia
Limin Zhang
Gabriel Amitai
Carol Green
Božica Radić
Brendan M Duggan
Dariush Ajami
Julius Rebek
Palmer Taylor

Funding

Oxime-Assisted Catalysis of Organophosphates and Reactivation of AChEU01NS058046 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TAYLOR, PALMER WILLIAM · 2006 to 2011
$4.0M
Optimization of nonpyridinium oximes for BChE hydrolysis of OPs in plasmaR21NS072086 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI RADIC, ZORAN, TAYLOR, PALMER WILLIAM · 2010 to 2012
$907k
NINDS NIH HHS R21 NS072086NINDS NIH HHS R21NS072086NINDS NIH HHS U01 NS058046
6 · The paper itself

Abstract

In the present paper we show a comprehensive in vitro, ex vivo and in vivo study on hydrolytic detoxification of nerve agent and pesticide OPs (organophosphates) catalysed by purified hBChE (human butyrylcholinesterase) in combination with novel non-pyridinium oxime reactivators. We identified TAB2OH (2-trimethylammonio-6-hydroxybenzaldehyde oxime) as an efficient reactivator of OP-hBChE conjugates formed by the nerve agents VX and cyclosarin, and the pesticide paraoxon. It was also functional in reactivation of sarin- and tabun-inhibited hBChE. A 3-5-fold enhancement of in vitro reactivation of VX-, cyclosarin- and paraoxon-inhibited hBChE was observed when compared with the commonly used N-methylpyridinium aldoxime reactivator, 2PAM (2-pyridinealdoxime methiodide). Kinetic analysis showed that the enhancement resulted from improved molecular recognition of corresponding OP-hBChE conjugates by TAB2OH. The unique features of TAB2OH stem from an exocyclic quaternary nitrogen and a hydroxy group, both ortho to an oxime group on a benzene ring. pH-dependences reveal participation of the hydroxy group (pKa=7.6) forming an additional ionizing nucleophile to potentiate the oxime (pKa=10) at physiological pH. The TAB2OH protective indices in therapy of sarin- and paraoxon-exposed mice were enhanced by 30-60% when they were treated with a combination of TAB2OH and sub-stoichiometric hBChE. The results of the present study establish that oxime-assisted catalysis is feasible for OP bioscavenging.

Indexed as

AnimalsButyrylcholinesteraseCatalysisChemical Warfare AgentsFemaleHumansHydrogen-Ion ConcentrationInactivation, MetabolicKineticsMiceMice, Inbred StrainsOrganophosphatesOximesParaoxonSarinButyrylcholinesteraseChemical Warfare AgentsOrganophosphatesOximesParaoxonSarin

Identifiers

PMID23216060
PMCPMC4772673

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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.