Evidence map›Paper›PMID 27217871›Full record

ArticleThe Pan African medical journal2016

Serological response to Epstein-Barr virus early antigen is associated with gastric cancer and human immunodeficiency virus infection in Zambian adults: a case-control study.

Violet Kayamba, Mwaka Monze, Akwi Wasi Asombang, Kanekwa Zyambo, Paul Kelly

Open access · goldAbstract read
In one paragraph

Article in The Pan African medical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Antibodies as biomarkers for cancer risk: a systematic review.Clinical and experimental immunology · 2022
    Pooled it
  3. Pooled it
  4. Review
  5. Sex-dependent different clinicopathological characterization of Epstein-Barr virus-associated gastric carcinoma: a large-scale study.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. 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

5 authors at 3 institutions in 3 countries.

Violet KayambaTropical Gastroenterology & Nutrition Group, University of Zambia School of Medicine, Nationalist Road, Lusaka, Zambia.
Mwaka MonzeUniversity Teaching Hospital, Nationalist Road, Lusaka, Zambia.
Akwi Wasi AsombangDivision of Gastroenterology and Hepatology, University of Missouri-Columbia School of Medicine, MO, USA.
Kanekwa ZyamboTropical Gastroenterology & Nutrition Group, University of Zambia School of Medicine, Nationalist Road, Lusaka, Zambia.
Paul KellyTropical Gastroenterology & Nutrition Group, University of Zambia School of Medicine, Nationalist Road, Lusaka, Zambia; Blizard Institute, Barts & The London School of Medicine and Dentistry, Turner Street, London, UK.
Tropical Gastroenterology & Nutrition group · ZMUniversity of Missouri · USUniversity Teaching Hospital · ZM

Funding

Wellcome TrustWellcome Trust WT087537MA
6 · The paper itself

Abstract

introductionGastric cancer is one of the major causes of cancer related deaths, but data from sub-Saharan Africa are very scanty. The cancer genome atlas (TCGA) initiative confirmed Epstein-Barr virus (EBV) related cancer as a distinct subtype, and we set out to look for serological evidence of its role in a sub-Saharan African patient group.

methodsWe used stored serum samples obtained from a gastric cancer case-control study conducted between 2010 and 2012 in Lusaka, Zambia. A total of 147 patients were included with 51 gastric adenocarcinoma cases and 96 age and sex matched controls. The presence of antibodies to EBV nuclear antigen-1 (EBNA-1) and early antigen (EA) was determined using commercially available ELISA kits. Data were analysed in STATA Stata Corp, College Station TX.

resultsOver 90% of all the samples analysed were positive for antibodies to EBNA-1. The presence of antibodies to EBV EA was significantly higher in gastric cancer cases than in controls, (OR 4.38; 95% CI 1.53-13.06, P = 0.0027), with an attributable risk of 23%. HIV infection was also associated with EBV EA seroprevalence (OR 10.97; 95% CI 2.26 -13.06, P = 0.001) but not EBNA-1 (OR 0.81; 95% CI 0.10 -38.75, P = 0.596). There was no association of EBV infection with age below 45 years, Helicobacter pylori infection, intestinal metaplasia, gastric atrophy or inflammation.

conclusionWe therefore conclude that EBV exposure is common among Zambian adults and that EBV EA seropositivity is associated with gastric cancer and HIV infection, but not premalignant lesions.

Indexed as

AdenocarcinomaAdultAntigens, ViralCase-Control StudiesEpstein-Barr Virus InfectionsEpstein-Barr Virus Nuclear AntigensFemaleHIV InfectionsHumansMaleMiddle AgedPrecancerous ConditionsRetrospective StudiesSeroepidemiologic StudiesStomach NeoplasmsZambiaAntigens, ViralEBV-encoded nuclear antigen 1Epstein-Barr virus early antigenEpstein-Barr Virus Nuclear AntigensEBNA-1EBV- EAEpstein-Barr virusGastric cancerHIV

Identifiers

PMID27217871
PMCPMC4862785
OpenAlexW2278162625

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.