Evidence map›Paper›PMID 41329450›Full record

ArticleGeroScience2026

Mesenchymal cell-derived extracellular vesicles ameliorate age-related deficits in working memory and in vivo MRI measures of white matter structure and function in rhesus monkeys.

Evan C Mackie, Chia-Hsin Cheng, Maya N Alibrio, Christine Rutledge, Hongqi Xin, Michael Chopp, Ryan P McCann, Douglas L Rosene, Qiong Yang, Ella Zeldich and 3 more

Abstract read
In one paragraph

Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. 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

13 authors.

Evan C MackieDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA. emackie@bu.edu.ORCID http://orcid.org/0000-0002-2778-3485
Chia-Hsin ChengDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Maya N AlibrioDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Christine RutledgeDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Hongqi XinDepartment of Neurology, Henry Ford Health, 2799 W Grand Blvd, Detroit, MI, 48202, USA.
Michael ChoppDepartment of Neurology, Henry Ford Health, 2799 W Grand Blvd, Detroit, MI, 48202, USA.
Ryan P McCannGraduate Program in Neuroscience, Boston University, 610 Commonwealth Ave, Boston, MA, 02215, USA.
Douglas L RoseneDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Qiong YangDepartment of Biostatistics, School of Public Health, Boston University, 715 Albany St, Boston, MA, 02118, USA.
Ella ZeldichDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Maria MedallaDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Bang-Bon KooDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.
Tara L MooreDepartment of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, 72 E Concord St, Room L1004, Boston, MA, 02118, USA.

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
Extracellular Vesicle treatment and age-related neuropathology in non-human primatesR01AG068168 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI MOORE, TARA L · 2020 to 2024
$3.6M
Mechanisms underlying extracellular vesicle mediated changes in inflammation, neural circuitry and plasticity following cortical injury in aged monkeysR01AG078460 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI TARA L MOORE, Maria Medalla · 2022 to 2026
$3.2M
NIA NIH HHS R01 AG068168NIA NIH HHS R01 AG078460NIA NIH HHS RF1 AG043640NIA NIH HHS RF1 AG062831
6 · The paper itself

Abstract

Aging humans and non-human primates both exhibit a similar pattern of cognitive decline beginning in middle age that is characterized by progressive impairments in rule learning, executive function, and working and recognition memory-functions often associated with dysfunction of prefrontal and medial temporal lobe regions. The heterogeneity and inter-subject variability in aging and age-related cognitive impairments present challenges for developing effective therapeutics and can be attributed to differing degrees of cortical white matter (WM) damage and alterations to local and long-range prefrontal and temporal networks. A promising therapeutic that has been shown to be efficacious in mitigating WM damage and improving cognitive function in rodent models is mesenchymal cell-derived extracellular vesicles (MSC-EVs). In the present study, late middle-aged rhesus monkeys were systemically administered monkey-derived MSC-EVs every 2 weeks for 18 months. We demonstrate that MSC-EV treatment improves spatial working memory and decreases the frequency of perseverative responses with largely no effects on recognition memory. These cognitive improvements were associated with increases in MRI diffusion measures of WM structural integrity over time as well as preservation of inter-network functional connectivity as measured by resting-state functional MRI. These findings suggest that MSC-EV treatment can slow or reverse age-related cognitive decline while strengthening WM integrity and improving functional connectivity in late middle-aged rhesus monkeys.

Indexed as

AgingCognitive DysfunctionExtracellular VesiclesMemory, Short-TermMesenchymal Stem CellsWhite MatterAnimalsDisease Models, AnimalFemaleMacaca mulattaMagnetic Resonance ImagingMaleCognitionDiffusion MRIMesenchymal stromal cell-derived extracellular vesiclesNormal agingResting-state functional MRIRhesus monkey

Identifiers

PMID41329450
PMCPMC13601405

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.