Evidence map›Paper›PMID 12438370›Full record

ArticleInfection and immunity2002

Association between the tumor necrosis factor locus and the clinical outcome of Leishmania chagasi infection.

Theresa M Karplus, Selma M B Jeronimo, Haeok Chang, Bethany K Helms, Trudy L Burns, Jeffrey C Murray, Adele A Mitchell, Elizabeth W Pugh, Regina F S Braz, Fabiana L Bezerra and 1 more

Abstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 103 citations in OpenAlex.

  1. Pooled it
  2. Human visceral leishmaniasis and polymorphisms in interleukin-coding genes: a systematic review.The journal of venomous animals and toxins including tropical diseases · 2024
    Review
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  18. Identification of risk areas for visceral leishmaniasis in Teresina, Piaui State, Brazil.The American journal of tropical medicine and hygiene · 2011
    Article
  19. Role of the IFNG +874T/A polymorphism in Chagas disease in a Colombian population.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2010
    Article
  20. Canine leishmaniasis in North America: emerging or newly recognized?The Veterinary clinics of North America. Small animal practice · 2009
    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

11 authors at 5 institutions in 2 countries.

Theresa M KarplusDepartment of Internal Medicine, University of Iowa, Iowa City 52242, USA.
Selma M B Jeronimo
Haeok Chang
Bethany K Helms
Trudy L Burns
Jeffrey C Murray
Adele A Mitchell
Elizabeth W Pugh
Regina F S Braz
Fabiana L Bezerra
Mary E Wilson
Johns Hopkins University · USUniversidade Federal do Rio Grande do Norte · BRCancer Research And Biostatistics · USUniversity of Iowa · USVeterans Health Administration · US

Funding

The role of Leishmania braziliensis strain polymorphism on disease outcome and ..P50AI030639 · NIAID · FEDERAL UNIVERSITY OF BAHIA · PI CARVALHO, EDGAR M · 1991 to 2023
$9.1M
TRAINING IN MECHANISMS OF PARASITISMT32AI007511 · NIAID · UNIVERSITY OF IOWA · PI BUTLER, NOAH SULLIVAN, WEBER, MARY · 1996 to 2025
$8.1M
GENOTYPING FOR LOCATING HUMAN DISEASE GENESN01HG065403 · NHGRI · JOHNS HOPKINS UNIVERSITY · PI VALLE, DAVID L · 1996 to 2000
$1.7M
GP63 EXPRESSION IN LEISHMANIA DONOVANI CHAGASIR01AI032135 · NIAID · UNIVERSITY OF IOWA · PI WILSON, MARY EDYTHE · 1992 to 2001
$521k
REGULATION OF INTESTINAL BILE ACID BINDING PROTEINK08DK002550 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI HWANG, SANDY T · 1998 to 2002
$364k
The Major Surface Protease of Trypanosomatid ProtozoaR21AI032135 · NIAID · UNIVERSITY OF IOWA · PI WILSON, MARY EDYTHE · 2003 to 2003
$332k
GENETIC SUSCEPTIBILITY TO VISCERAL LEISHMANIASISR03TW001369 · FIC · UNIVERSITY OF IOWA · PI WILSON, MARY EDYTHE · 2000 to 2002
$120k
FIC NIH HHS R03 TW001369FIC NIH HHS TW01369-01NHGRI NIH HHS N01 HG065403NIAID NIH HHS AI-30639-08NIAID NIH HHS AI32135NIAID NIH HHS P50 AI030639NIAID NIH HHS R01 AI032135NIAID NIH HHS R21 AI032135NIAID NIH HHS T32 AI007511NIAID NIH HHS T32AI07511NIDDK NIH HHS DK/AI2550
6 · The paper itself

Abstract

A periurban outbreak of visceral leishmaniasis (VL) caused by the protozoan Leishmania chagasi is ongoing outside Natal, northeast Brazil. Manifestations range from asymptomatic infection to disseminated visceral disease. Literature reports suggest that both genetic and environmental factors influence the outcome of infection. Due to the association of the tumor necrosis factor (TNF) locus with other infectious diseases, we examined whether polymorphic alleles at this locus are associated with the outcome of L. chagasi infection. Neighborhoods with ongoing transmission were identified through patients admitted to local hospitals. Altogether, 1,024 individuals from 183 families were classified with the following disease phenotypes: (i) symptomatic VL, (ii) asymptomatic infection (positive delayed-type hypersensitivity [DTH+]), or (iii) no evidence of infection (DTH-). Genotypes were determined at a microsatellite marker (MSM) upstream of the TNFB gene encoding TNF-beta and at a restriction fragment length polymorphism (RFLP) at position -307 in the promoter of the TNFA gene encoding TNF-alpha. Analyses showed that the distribution of TNFA RFLP alleles (TNF1 and TNF2) and the TNF MSM alleles (TNFa1 to TNFa15) differed between individuals with VL and those with DTH+ phenotypes. TNF1 was transmitted more frequently than expected from heterozygous parents to DTH+ offspring (P = 0.0006), and haplotypes containing TNF2 were associated with symptomatic VL (P = 0.0265, transmission disequilibrium test). Resting serum TNF-alpha levels were higher in TNF1/2 heterozygotes than in TNF1/1 homozygotes (P < 0.05). These data led us to hypothesize that an individual's genotype at the TNF locus may be associated with whether he or she develops asymptomatic or symptomatic disease after L. chagasi infection. The results preliminarily suggest that this may be the case, and follow-up with larger populations is needed for verification.

Indexed as

Genetic Predisposition to DiseaseAdultAllelesAnimalsCase-Control StudiesChildChild, PreschoolFamilyFemaleGene FrequencyHumansHypersensitivity, DelayedLeishmania infantumLeishmaniasis, VisceralLymphotoxin-alphaMaleLymphotoxin-alphaTumor Necrosis Factor-alpha

Identifiers

PMID12438370
PMCPMC133071
OpenAlexW2116750495

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.