Evidence map›Paper›PMID 35930094›Full record

ArticleGeroScience2023

Aging compromises oligodendrocyte precursor cell maturation and efficient remyelination in the monkey brain.

Christina Dimovasili, Ashley E Fair, Isabella R Garza, Katelyn V Batterman, Farzad Mortazavi, Tara L Moore, Douglas L Rosene

Open access · greenAbstract read
In one paragraph

Article in GeroScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 2% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Christina DimovasiliLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA. cdimovasili@gmail.com.ORCID 0000-0003-1364-6161
Ashley E FairLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Isabella R GarzaLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Katelyn V BattermanLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Farzad MortazaviLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Tara L MooreLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Douglas L RoseneLaboratory for Cognitive Neurobiology, Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA, USA.
Boston University · US

Funding

Age-related cognitive decline and myelin pathology: A comprehensive study of oligodendroglia, microglia and myelin homeostasis in the normal aging monkeyRF1AG062831 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ROSENE, DOUGLAS L · 2019 to 2019
$3.7M
Mechanisms of myelin damage and cognitive impairment in the aging monkey: Gene Expression, Neurophysiology, Inflammation and Effects of Calorie RestrictionRF1AG043640 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ROSENE, DOUGLAS L · 2019 to 2019
$3.7M
NIA NIH HHS RF1 AG043640NIA NIH HHS RF1 AG062831
6 · The paper itself

Abstract

Age-associated cognitive decline is common among otherwise healthy elderly people, even in the absence of Alzheimer's disease and neuron loss. Instead, white matter loss and myelin damage are strongly associated with cognitive decline. Myelin is subject to lifelong oxidative stress that damages the myelin sheath, which is repaired by cells of the oligodendrocyte lineage. This process is mediated by oligodendrocyte precursor cells (OPCs) that sense the damage and respond by proliferating locally and migrating to the region, where they differentiate into mature myelinating oligodendrocytes. In aging, extensive myelin damage, in combination with inefficient remyelination, leads to chronically damaged myelin and loss of efficient neuronal conduction. This study used the rhesus monkey model of normal aging to examine how myelin regeneration capacity is affected by age. Results show that older subjects have reduced numbers of new BCAS1 + myelinating oligodendrocytes, which are newly formed cells, and that this reduction is associated with poorer cognitive performance. Interestingly, this does not result from limited proliferation of progenitor OPCs. Instead, the transcription factor NKX2.2, which regulates OPCs differentiation, is significantly decreased in aged OPCs. This suggests that these OPCs have a diminished potential for differentiation into mature oligodendrocytes. In addition, mature oligodendrocytes have reduced RNA expression of two essential myelin protein markers, MBP and PLP. These data collectively suggest that in the normal aging brain, there is a reduction in regenerative OPCs as well as myelin production that impairs the capacity for remyelination.

Indexed as

Oligodendrocyte Precursor CellsRemyelinationBrainMyelin SheathAgingMyelinationOligodendrocyteRNAscope

Identifiers

PMID35930094
PMCPMC9886778
OpenAlexW4289860685

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.