Evidence map›Paper›PMID 31870645›Full record

ArticleNeurobiology of aging2020

Characterization of age-related microstructural changes in locus coeruleus and substantia nigra pars compacta.

Jason Langley, Sana Hussain, Justino J Flores, Ilana J Bennett, Xiaoping Hu

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
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  3. Locus coeruleus degeneration is associated with orthostatic hypotension in Parkinson's disease and multiple system atrophy.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
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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

5 authors at 1 institution in 1 country.

Jason LangleyCenter for Advanced Neuroimaging, University of California Riverside, Riverside, CA, USA.
Sana HussainDepartment of Bioengineering, University of California Riverside, Riverside, CA, USA.
Justino J FloresDepartment of Psychology, University of California Riverside, Riverside, CA, USA.
Ilana J BennettDepartment of Psychology, University of California Riverside, Riverside, CA, USA.
Xiaoping HuCenter for Advanced Neuroimaging, University of California Riverside, Riverside, CA, USA; Department of Bioengineering, University of California Riverside, Riverside, CA, USA. Electronic address: xhu@engr.ucr.edu.
University of California, Riverside · US

Funding

High-resolution multimodal imaging of episodic memory networks in aging.R00AG047334 · NIA · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI BENNETT, ILANA JACQUELINE · 2016 to 2018
$737k
Multi-compartment diffusion imaging of hippocampal white and gray matter in agingR21AG054804 · NIA · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI BENNETT, ILANA JACQUELINE · 2017 to 2018
$427k
NIA NIH HHS R00 AG047334NIA NIH HHS R21 AG054804
6 · The paper itself

Abstract

Locus coeruleus (LC) and substantia nigra pars compacta (SNpc) degrade with normal aging, but not much is known regarding how these changes manifest in MRI images, or whether these markers predict aspects of cognition. Here, we use high-resolution diffusion-weighted MRI to investigate microstructural and compositional changes in LC and SNpc in young and older adult cohorts, as well as their relationship with cognition. In LC, the older cohort exhibited a significant reduction in mean and radial diffusivity, but a significant increase in fractional anisotropy compared with the young cohort. We observed a significant correlation between the decrease in LC mean, axial, and radial diffusivities and measures examining cognition (Rey Auditory Verbal Learning Test delayed recall) in the older adult cohort. This observation suggests that LC is involved in retaining cognitive abilities. In addition, we observed that iron deposition in SNpc occurs early in life and continues during normal aging.

Indexed as

AdultAgedAged, 80 and overAgingCognitionDiffusion Tensor ImagingFemaleHumansIronLocus CoeruleusMalePars CompactaYoung AdultIronAgingDTIIron depositionLocus coeruleusSubstantia nigra

Identifiers

PMID31870645
PMCPMC7064384
OpenAlexW2990298546

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.