Evidence map›Paper›PMID 20095832›Full record

ArticleThe Journal of infectious diseases2010

CCL3L1 copy number is a strong genetic determinant of HIV seropositivity in Caucasian intravenous drug users.

Kristi Huik, Maarja Sadam, Tõnis Karki, Radko Avi, Tõnu Krispin, Piret Paap, Kristi Rüütel, Anneli Uusküla, Ave Talu, Katri Abel-Ollo and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 22% 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, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Human T-lymphotropic virus types 1 and 2 are rare among intravenous drug users in Eastern Europe.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2016
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Association between TLR3 rs3775291 and resistance to HIV among highly exposed Caucasian intravenous drug users.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2013
    Article
  13. Article
  14. Article
  15. Article
  16. HEPATITIS C VIRUS GENOTYPES IN INJECTING DRUG USERS FROM ROMANIA.Central European journal of medicine · 2011
    Article
  17. Review
  18. Review
  19. 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 3 institutions in 1 country.

Kristi HuikDepartment of Microbiology, Faculty of Medicine, University of Tartu, 50411 Tartu, Estonia.
Maarja Sadam
Tõnis Karki
Radko Avi
Tõnu Krispin
Piret Paap
Kristi Rüütel
Anneli Uusküla
Ave Talu
Katri Abel-Ollo
Irja Lutsar
University of Tartu · EENational Institute for Health Development · EETartu University Hospital · EE

Funding

Risk Factors for HIV/AIDS in Drug UsersR01DA003574 · NIDA · NEW YORK UNIVERSITY · PI DES JARLAIS, DON C, MCKNIGHT, COURTNEY · 1986 to 2025
$16.2M
NIDA NIH HHS R01 DA003574NIDA NIH HHS R01DA03574
6 · The paper itself

Abstract

backgroundA high copy number of CCL3L1, the most potent human immunodeficiency virus (HIV)-suppressive chemokine, associates with reduced HIV susceptibility. Whether CCL3L1 influences acquisition of multiple blood-borne infections (eg, hepatitis C virus [HCV], HIV, and hepatitis B virus [HBV] infections), which occur commonly among injection drug users (IDUs), is unknown.

methodsWe determined CCL3L1 copy number by real-time polymerase chain reaction among 374 Caucasian IDUs from Estonia; 285 were HCV positive, 208 were HIV positive, 177 were HCV and HIV positive, and 57 were HCV and HIV negative.

resultsIn univariate and multivariate analyses, HCV and HBV seropositivity and duration of IDU each strongly predicted HIV seropositivity. A high CCL3L1 copy number (>2) was associated with an 80% reduced risk of acquiring HIV infection after adjusting for age, sex, HCV and HBV status, CCR5-Delta32 polymorphism, and IDU duration (odds ratio, 0.20; 95% confidence interval, 0.09-0.45). By contrast, CCL3L1 gene dose did not influence HCV seropositivity. Among HCV-positive IDUs, there was a 3.5-fold overrepresentation and 65% underrepresentation of a high CCL3L1 copy number among HCV-positive, HIV-negative subjects and HCV-positive, HIV-positive subjects, respectively.

conclusionAmong IDUs with extensive exposure to HCV and HIV, CCL3L1 copy number is a major determinant of HIV seropositivity but not of HCV seropositivity. The contrasting distribution of a protective high CCL3L1 copy number among HCV-positive, HIV-negative IDUs versus HCV-positive, HIV-positive IDUs may reflect that HIV preferentially selects for subjects with a low CCL3L1 gene dose.

Indexed as

Drug UsersGene DosageWhite PeopleAdultChemokines, CCEstoniaFemaleHepacivirusHepatitis CHIV SeropositivityHumansImmunity, InnateMalePolymerase Chain ReactionSubstance Abuse, IntravenousCCL3L1 protein, humanChemokines, CC

Identifiers

PMID20095832
PMCPMC2836481
OpenAlexW2163393417

What OpenQuestion holds

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Registered trials

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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.