Evidence map›Paper›PMID 31825984›Full record

ArticlePloS one2019

Classification of flavors in cigarillos and little cigars and their variable cellular and acellular oxidative and cytotoxic responses.

Gina R Lawyer, Monica Jackson, Melanie Prinz, Thomas Lamb, Qixin Wang, Thivanka Muthumalage, Irfan Rahman

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

15 citing papers in PubMed, 17 citations in OpenAlex.

  1. Mapping the flavoring landscape: a comparative analysis of tobacco and related products.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  2. Article
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  5. What Is (Un)Flavored? A Scoping Review of the Conceptualization of Flavored Cigarillos.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Dissonance in Young Adult Cigarillo Users' Categorization of Concept Flavored and Unflavored Products.International journal of environmental research and public health · 2022
    Article
  10. Article
  11. Article
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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

7 authors at 1 institution in 1 country.

Gina R LawyerDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Monica JacksonDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Melanie PrinzDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Thomas LambDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Qixin WangDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Thivanka MuthumalageDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.
Irfan RahmanDepartment of Environmental Medicine, School of Medicine & Dentistry, University of Rochester Medical Center, Rochester, NY, United States of America.ORCID 0000-0003-2274-2454
University of Rochester Medical Center · US

Funding

Training in Environment ToxicologyT32ES007026 · NIEHS · UNIVERSITY OF ROCHESTER · PI Alison Elder, Marissa Sobolewski Terry · 1985 to 2026
$20.2M
WNY Center for Research on Flavored Tobacco Products (CRoFT)U54CA228110 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI GONIEWICZ, MACIEJ LUKASZ, O'CONNOR, RICHARD J · 2018 to 2022
$19.8M
MECHANISMS OF CIGARETTE SMOKE-INDUCED LUNG CELLULAR SENESCENCER01HL085613 · NHLBI · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2007 to 2017
$4.0M
Inflammatory and Dysregulated Repair Responses to Inhaled NicotineR01HL135613 · NHLBI · UNIVERSITY OF ROCHESTER · PI RAHMAN, IRFAN · 2017 to 2021
$2.7M
NCI NIH HHS U54 CA228110NHLBI NIH HHS R01 HL085613NHLBI NIH HHS R01 HL135613NIEHS NIH HHS T32 ES007026
6 · The paper itself

Abstract

Flavored tobacco products are increasing in popularity but remain unregulated, with the exception of the ban on flavored conventional cigarettes. Lack of regulation of cigarillos and little cigars allows vendors to have their own version of popular flavors, each with different chemical components. A new classification system was created for flavored cigars in order to easily communicate our results with the scientific community. To understand the physicochemical characteristics of flavored little cigars and cigarillo smoke, size distribution and concentration of particulate matter in smoke were determined. Acellular reactive oxygen species generation was measured as an indirect measurement of the potential to cause oxidative stress in cells. In addition, cigarillo smoke extract treatment on bronchial epithelial (Beas-2b) cells were assessed to determine the flavor-induced cellular toxicity. Flavored cigars/cigarillos showed significant variability in the tested parameters between flavors as well as brands of the same flavor, but most of the cigars showed higher potential of generating oxidative stress, than research grade cigarettes. Flavored cigars produced maximum particle concentrations at 1.0μm and 4.0 μm compared with 3R4F reference research cigarettes. A differential cytotoxic response was observed with cigarillo smoke extract treatments, with "fruits/candy" and "drinks" being the most toxic, but were not more cytotoxic than smoke from cigarettes. These cigarillos with flavors must be well characterized for toxicity in order to prevent adverse effects caused by exposure to flavor chemicals. Our study provides insight into understanding the potential health effects of flavor-infused cigars/cigarillos and the need for the regulation of those flavoring chemicals in these products. Future research is directed to determine the flavoring toxicity of little cigars and cigarillos in vivo studies.

Indexed as

Cell LineCell SurvivalEpithelial CellsFlavoring AgentsHumansParticulate MatterReactive Oxygen SpeciesSmokeTobacco ProductsFlavoring AgentsParticulate MatterReactive Oxygen SpeciesSmoke

Identifiers

PMID31825984
PMCPMC6905550
OpenAlexW2995977978

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.