Evidence map›Paper›PMID 19738032›Full record

ArticleBlood2009

A protective role for early oral exposures in the etiology of young adult Hodgkin lymphoma.

Wendy Cozen, Ann S Hamilton, Peng Zhao, Muhammad T Salam, Dennis M Deapen, Bharat N Nathwani, Lawrence M Weiss, Thomas M Mack

Abstract readTwin Study
In one paragraph

Article in Blood, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Review
  7. Review
  8. Article
  9. Article
  10. Emerging Roles for the Gut Microbiome in Lymphoid Neoplasms.Clinical Medicine Insights. Oncology · 2021
    Review
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  12. Review
  13. 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

8 authors.

Wendy CozenDepartment of Preventive Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA. wcozen@usc.edu
Ann S Hamilton
Peng Zhao
Muhammad T Salam
Dennis M Deapen
Bharat N Nathwani
Lawrence M Weiss
Thomas M Mack

Funding

Cytokine Polymorphisms and Hodgkin Lymphoma RiskR03CA110836 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI COZEN, WENDY · 2005 to 2006
$161k
RISK FACTORS FOR YOUNG ADULT HODGKIN'S DISEASE IN TWINSR03CA108336 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI COZEN, WENDY · 2004 to 2004
$81k
EPIDEMIOLOGY OF HD IN TWINS--INFECTIONS/T-CELL FUNCTIONR01CA058839 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI MACK, THOMAS MCCULLOCH · 1995 to 1997
–
NCI NIH HHS 1R01CA58839NCI NIH HHS 1R03CA110836-01A2NCI NIH HHS R03 CA108336NCI NIH HHS R03 CA110836NCI NIH HHS R03CA110836-01A2
6 · The paper itself

Abstract

The pattern of adolescent/young adult Hodgkin lymphoma (YAHL) suggests causation by a relatively late infection with a common childhood virus, but no causal virus has been found. Susceptibility is heritable and linked to lower interleukin 12 (IL12) levels, which can also result from fewer fecal-oral microbial exposures early in life. We studied twin pairs discordant for YAHL to examine exposures capable of altering the IL12 response and T-helper type 1 (Th1)-Th2 balance. One hundred eighty-eight YAHL-discordant twin pairs from the International Twin Study returned questionnaires (70% response). Exposure history of YAHL case-twins was compared with that of their unaffected control-twins using conditional logistic regression for matched pairs to calculate odds ratios (ORs). Behaviors likely to produce oral exposure to microbes conveyed decreases in risk (univariable OR range = 0.2-0.5, P = .003-.11). Significant adjusted ORs were seen for appendectomy (OR = 4.3, P = .001), eczema (OR = 4.2, P = .025), smoking (OR = 2.2, P = .054), and relatively more frequent behaviors associated with oral exposures (OR = 0.1; P = .004). Kappa statistics for intrapair agreement were higher than 0.8 for each significant finding. Our observations support a protective role for increased early oral exposure to the microbiome, suggesting that factors associated with increased Th2 and decreased Th1 cytokines are etiologically relevant to YAHL.

Indexed as

AdultAge of OnsetCase-Control StudiesDiseases in TwinsFemaleHodgkin DiseaseHumansInterleukin-12Interleukin-6MaleMetagenomeMiddle AgedModels, BiologicalRisk FactorsSurveys and QuestionnairesTh1 CellsIL6 protein, humanInterleukin-12Interleukin-6

Identifiers

PMID19738032
PMCPMC2774542

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.