Evidence map›Paper›PMID 34666345›Full record

ArticleJournal of analytical toxicology2022

Thermal Degradants Identified from the Vaping of Vitamin E Acetate.

Alexander L Kovach, Randi R Carter, Jonathan W Thornburg, Robert Wiethe, Timothy R Fennell, Jenny L Wiley

Open access · greenAbstract read
In one paragraph

Article in Journal of analytical toxicology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 36% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Cannabis concentrate vaping chemistry.Frontiers in toxicology · 2025
    Review
  3. Article
  4. Review
  5. 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

6 authors at 1 institution in 1 country.

Alexander L KovachDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.ORCID 0000-0002-8254-3492
Randi R CarterDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
Jonathan W ThornburgDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
Robert WietheDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
Timothy R FennellDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
Jenny L WileyDiscovery Sciences, RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA.
RTI International · US

Funding

Investigation of Synthetic Cannabinoid Exposures and Pharmacological ConsequencesR01DA040460 · NIDA · RESEARCH TRIANGLE INSTITUTE · PI RANGAN MAITRA, Yanan Zhang · 2016 to 2026
$4.5M
Co-Abuse Cannabis and TobaccoR33DA044377 · NIDA · RESEARCH TRIANGLE INSTITUTE · PI MARUSICH, JULIE A · 2019 to 2021
$2.7M
Comparative Pharmacology of Cannabinoids in Rodent ModelsR01DA045003 · NIDA · RESEARCH TRIANGLE INSTITUTE · PI MARUSICH, JULIE A · 2018 to 2022
$2.3M
Co-Abuse Cannabis and TobaccoR21DA044377 · NIDA · RESEARCH TRIANGLE INSTITUTE · PI WILEY, JENNY L. · 2017 to 2018
$412k
NIDA NIH HHS DA-040460NIDA NIH HHS DA-044377NIDA NIH HHS R01 DA040460NIDA NIH HHS R01 DA045003NIDA NIH HHS R21 DA044377NIDA NIH HHS R33 DA044377
6 · The paper itself

Abstract

Studies have suggested that vitamin E acetate (VEA), when used in an electronic vaping device, undergoes thermal degradation and is considered one of the main contributors in e-cigarette or vaping product use-associated lung injury (EVALI). Using a Borgwaldt 5.1 linear smoker, a SVS250 Electronic Vaporizer and two types of tank systems, VEA was analyzed for degradation products produced via the Cooperation Centre for Scientific Research Relative to Tobacco method 81 when the filter containing vaporized VEA was extracted using acetonitrile. Two of the major products identified were 2,3,5,6-tetramethyl-1,4-benzoquinone and 2,6,10,14-tetramethyl-1-pentadecene, which were confirmed using analytical standards and gas chromatography-high-resolution mass spectrometry (GC-HRMS). Additional synthesis of 4-acetoxy-2,3,5,6-tetramethyl-2,4-cyclohexadienone and subsequent characterization using nuclear magnetic resonance and GC-HRMS suggested that this is not one of the products produced. Identification of these degradants will allow future studies to quantify and examine the degradants in vivo and in vitro as biomarkers for exposure and toxicity assessment.

Indexed as

Electronic Nicotine Delivery SystemsVapingAcetatesDronabinolVitamin EAcetatesDronabinolVitamin E

Identifiers

PMID34666345
PMCPMC9375236
OpenAlexW3206732647

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.