Evidence map›Paper›PMID 32228314›Full record

ArticleJCO global oncology2020

Biomass Smoke Exposure Is Associated With Gastric Cancer and Probably Mediated Via Oxidative Stress and DNA Damage: A Case-Control Study.

Violet Kayamba, Kanekwa Zyambo, Chola Mulenga, Simutanyi Mwakamui, Mizinga Jacqueline Tembo, Aaron Shibemba, Douglas Corbett Heimburger, Masharip Atadzhanov, Paul Kelly

Open access · goldAbstract read
In one paragraph

Article in JCO global oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.7field-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

19 citing papers in PubMed, 27 citations in OpenAlex.

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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

9 authors at 4 institutions in 3 countries.

Violet KayambaDepartment of Internal Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia.
Kanekwa ZyamboDepartment of Internal Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia.
Chola MulengaDepartment of Internal Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia.
Simutanyi MwakamuiDepartment of Internal Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia.
Mizinga Jacqueline TemboUniversity of Zambia School Health Sciences, Lusaka, Zambia.
Aaron ShibembaDepartment of Pathology, University Teaching Hospital, Lusaka, Zambia.
Douglas Corbett HeimburgerVanderbilt Institute for Global Health, Vanderbilt University Medical Center, Nashville, TN.
Masharip AtadzhanovDepartment of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia.
Paul KellyDepartment of Internal Medicine, Tropical Gastroenterology and Nutrition Group, Lusaka, Zambia.
Tropical Gastroenterology & Nutrition group · ZMUniversity of Zambia · ZMUniversity Teaching Hospital · ZMVanderbilt University Medical Center · US

Funding

Vanderbilt-Emory-Cornell-Duke Consortium for Global Health Fellows (VECDor)R25TW009337 · FIC · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HEIMBURGER, DOUGLAS CORBETT, VERMUND, STEN H. · 2012 to 2016
$6.3M
UNZA-Vanderbilt Training Partnership for HIV-NCD Research (UVP-2)D43TW009744 · FIC · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HEIMBURGER, DOUGLAS CORBETT, MUTALE, WILBROAD · 2015 to 2025
$3.2M
FIC NIH HHS D43 TW009744FIC NIH HHS R25 TW009337
6 · The paper itself

Abstract

purposeWe investigated the association between gastric cancer and environmental and dietary exposures. In addition, we explored probable mechanistic pathways for the influence of biomass smoke on gastric carcinogenesis. PATIENTS AND

methodsThe study was conducted in Lusaka, Zambia. Questionnaires were used to collect data on risk factors, whereas enzyme-linked immunosorbent assays and high-performance liquid chromatography were used to measure biologic exposures. Study data were analyzed using contingency tables and logistic regression.

resultsWe enrolled 72 patients with gastric adenocarcinoma and 244 controls. Gastric cancer was positively associated with rural residence (odds ratio [OR], 2.9; 95% CI, 1.5 to 5.3), poverty (OR, 4.2; 95% CI, 1.9 to 9.1), and daily consumption of processed meat (OR, 6.4; 95% CI, 1.3 to 32) and negatively associated with consumption of green vegetables (OR, 0.2; 95% CI, 0.1 to 0.5). Gastric cancer was also associated with biomass smoke exposure (OR, 3.5; 95% CI, 1.9 to 6.2;

conclusionIn Zambia, exposure to biomass smoke, daily consumption of processed meat, and poverty are risk factors for gastric cancer, whereas daily consumption of green vegetables is protective against gastric cancer. Exposure to biomass smoke was associated with evidence of oxidative stress and DNA damage, suggesting mechanistic plausibility for the observed association, and the association was restricted to intestinal-type gastric cancer.

Indexed as

Stomach NeoplasmsBiomassCase-Control StudiesDNA DamageHumansOxidative StressSmokeZambiaSmoke

Identifiers

PMID32228314
PMCPMC7113078
OpenAlexW3014066848

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.