Evidence map›Paper›PMID 26423806›Full record

ArticleBMC research notes2015

White matter deficits assessed by diffusion tensor imaging and cognitive dysfunction in psychostimulant users with comorbid human immunodeficiency virus infection.

Victor M Tang, Donna J Lang, Chantelle J Giesbrecht, William J Panenka, Taylor Willi, Ric M Procyshyn, Fidel Vila-Rodriguez, Willough Jenkins, Tania Lecomte, Heidi N Boyda and 4 more

Abstract read
In one paragraph

Article in BMC research notes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. HIV Infection and Neurocognitive Disorders in the Context of Chronic Drug Abuse: Evidence for Divergent Findings Dependent upon Prior Drug History.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2020
    Review
  7. Observational
  8. Article
  9. Cognitive Trajectory Phenotypes in Human Immunodeficiency Virus-Infected Patients.Journal of acquired immune deficiency syndromes (1999) · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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

14 authors.

Victor M TangDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. victormtang@gmail.com.
Donna J LangDepartment of Radiology, University of British Columbia, 3350-950 W 10th Avenue, Vancouver, V5Z1M9, Canada. donna.lang@ubc.ca.
Chantelle J GiesbrechtDepartment of Psychology, Simon Fraser University, 8888 University Drive, Burnaby, V5A1S6, Canada. cjgiesbr@sfu.ca.
William J PanenkaDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. wpanenka@mail.ubc.ca.
Taylor WilliDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. taywilli12@gmail.com.
Ric M ProcyshynDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. RProcyshyn@bcmhs.bc.ca.
Fidel Vila-RodriguezDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. fidel.vilarodriguez@ubc.ca.
Willough JenkinsDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. willoughjenkins@gmail.com.
Tania LecomteDépartement de Psychologie, Université de Montréal, Montreal, QC, Canada. tania.lecomte@umontreal.ca.
Heidi N BoydaBritish Columbia Mental Health & Addictions Research Institute, 938 W 28th Avenue, Vancouver, V5Z4H4, Canada. hnboyda@gmail.com.
Ana AleksicBritish Columbia Mental Health & Addictions Research Institute, 938 W 28th Avenue, Vancouver, V5Z4H4, Canada. ana.aleksic.aa@gmail.com.
G William MacEwanDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. Bill.MacEwan@fraserhealth.ca.
William G HonerDepartment of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, V6T2A1, Canada. bill.honer@ubc.ca.
Alasdair M BarrBritish Columbia Mental Health & Addictions Research Institute, 938 W 28th Avenue, Vancouver, V5Z4H4, Canada. al.barr@ubc.ca.

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundPsychostimulant drug use is commonly associated with drug-related infection, including the human immunodeficiency virus (HIV). Both psychostimulant use and HIV infection are known to damage brain white matter and impair cognition. To date, no study has examined white matter integrity using magnetic resonance imaging (MRI) diffusion tensor imaging (DTI) in chronic psychostimulant users with comorbid HIV infection, and determined the relationship of white matter integrity to cognitive function.

methodsTwenty-one subjects (mean age 37.5 ± 9.0 years) with a history of heavy psychostimulant use and HIV infection (8.7 ± 4.3 years) and 22 matched controls were scanned on a 3T MRI. Fractional anisotropy (FA) values were calculated with DTI software. Four regions of interest were manually segmented, including the genu of the corpus callosum, left and right anterior limbs of the internal capsule, and the anterior commissure. Subjects also completed a neurocognitive battery and questionnaires about physical and mental health.

resultsThe psychostimulant using, HIV positive group displayed decreased white matter integrity, with significantly lower FA values for all white matter tracts (p < 0.05). This group also exhibited decreased cognitive performance on tasks that assessed cognitive set-shifting, fine motor speed and verbal memory. FA values for the white matter tracts correlated with cognitive performance on many of the neurocognitive tests.

conclusionsWhite matter integrity was thus impaired in subjects with psychostimulant use and comorbid HIV infection, which predicted worsened cognitive performance on a range of tests. Further study on this medical comorbidity is required.

Indexed as

AdultAmphetaminesAnisotropyCase-Control StudiesCentral Nervous System StimulantsCocaineCognitionCognition DisordersCorpus CallosumCrack CocaineDiffusion Magnetic Resonance ImagingDiffusion Tensor ImagingFemaleHIV InfectionsHumansInternal CapsuleAmphetaminesCentral Nervous System StimulantsCocaineCrack Cocaine

Identifiers

PMID26423806
PMCPMC4590729

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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.