Evidence map›Paper›PMID 32980769›Full record

ArticleJournal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)2020

Evaluation of chronic lead effects in the blood brain barrier system by DCE-CT.

Huiying Gu, Paul R Territo, Scott A Persohn, Amanda A Bedwell, Kierra Eldridge, Rachael Speedy, Zhe Chen, Wei Zheng, Yansheng Du

Open access · greenAbstract read
In one paragraph

Article in Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.3field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Molecular and cellular mechanisms of lead-induced neurotoxicity: comparative insights from rodent and zebrafish models.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Review
  3. Perinatal lead (Pb) exposure and alterations to amyloid beta and metabolic profiles in the brain.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Demyelination and impaired oligodendrogenesis in the corpus callosum following lead exposure.Toxicological sciences : an official journal of the Society of Toxicology · 2024
    Article
  10. Review
  11. Article
  12. Metals in Alzheimer's Disease.Biomedicines · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

9 authors at 2 institutions in 1 country.

Huiying GuDepartment of Neurology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Paul R TerritoDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Scott A PersohnDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Amanda A BedwellDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Kierra EldridgeDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Rachael SpeedyDepartment of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Zhe ChenDepartment of Neurology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
Wei ZhengSchool of Health Sciences, Purdue University, West Lafayette, IN, 47907, United States.
Yansheng DuDepartment of Neurology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States. Electronic address: ydu@iupui.edu.
Indiana University School of MedicinePurdue University West Lafayette · US

Funding

Lead Exposure and Beta-Amyloid Transport by Brain BarriersR01ES027078 · NIEHS · PURDUE UNIVERSITY · PI DU, YANSHENG, ZHENG, WEI · 2017 to 2021
$2.2M
The Pathogenic Role of Pb in Cerebral Amyloid Angiopathy and AD SupplementR21AG067923 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI DU, YANSHENG, TERRITO, PAUL RICHARD · 2020 to 2022
$642k
NIA NIH HHS R21 AG067923NIEHS NIH HHS R01 ES027078
6 · The paper itself

Abstract

backgroundLead (Pb) is an environmental factor has been suspected of contributing to the dementia including Alzheimer's disease (AD). Our previous studies have shown that Pb exposure at the subtoxic dose increased brain levels of beta-amyloid (Aβ) and amyloid plaques, a pathological hallmark for AD, in amyloid precursor protein (APP) transgenic mice, and is hypothesized to inhibit Aβ clearance in the blood- cerebrospinal fluid (CSF) barrier. However, it remains unclear how different levels of Pb affect Aβ clearance in the whole blood-brain barrier system. This study was designed to investigate whether chronic exposure of Pb affected the permeability of the blood-brain barrier system by using the Dynamic Contrast-Enhanced Computerized Tomography (DCE-CT) method.

methodsDEC-CT was used to investigate whether chronic exposure of toxic Pb affected the permeability of the real-time blood brain barrier system.

resultsData showed that Pb exposure increased permeability surface area product, and also significantly induced brain perfusion. However, Pb exposure did not alter extracellular volumes or fractional blood volumes of mouse brain.

conclusionOur data suggest that Pb exposure at subtoxic and toxic levels directly targets the brain vasculature and damages the blood brain barrier system.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAnimalsBlood-Brain BarrierBrainLeadMiceMice, TransgenicAmyloid beta-PeptidesAmyloid beta-Protein PrecursorLeadAlzheimer’s diseaseAPP transgenic miceBeta amyloidDCE-CTLeadPermeability

Identifiers

PMID32980769
PMCPMC7655551
OpenAlexW3087491300

What OpenQuestion holds

Textmetadata
LicenceTDM
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.