Evidence map›Paper›PMID 34209640›Full record

ArticleCells2021

Age-Dependent Decline in Neuron Growth Potential and Mitochondria Functions in Cortical Neurons.

Theresa C Sutherland, Arthur Sefiani, Darijana Horvat, Taylor E Huntington, Yuanjiu Lei, A Phillip West, Cédric G Geoffroy

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. APOE4 disrupts the central dogma by arresting neuronal proteome dynamics.bioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Human iPSC-Derived MSCs Induce Neurotrophic Effects and Improve Metabolic Activity in Acute Neuronal Injury Models.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  10. The aggregate proteome ofFrontiers in aging neuroscience · 2025
    Article
  11. Isolation of Primary Brain Cells: Challenges and Solutions.Archives of clinical and biomedical research · 2025
    Article
  12. Article
  13. Article
  14. Challenges in Translating Regenerative Therapies for Spinal Cord Injury.Topics in spinal cord injury rehabilitation · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. 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

7 authors at 1 institution in 1 country.

Theresa C SutherlandDepartment of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX 77807, USA.ORCID 0000-0002-2919-1504
Arthur SefianiDepartment of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX 77807, USA.ORCID 0000-0003-3226-8530
Darijana HorvatDepartment of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX 77807, USA.
Taylor E HuntingtonDepartment of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX 77807, USA.
Yuanjiu LeiDepartment of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807, USA.
A Phillip WestDepartment of Microbial Pathogenesis and Immunology, Texas A&M Health Science Center, Bryan, TX 77807, USA.ORCID 0000-0003-2884-6895
Cédric G GeoffroyDepartment of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center, Bryan, TX 77807, USA.
Texas A&M Health Science Center · US

Funding

Type I Interferon Responses in the Pathobiology of Anthracycline-induced CardiotoxicityR01HL148153 · NHLBI · TEXAS A&M UNIVERSITY · PI John Travis Hinson, Andrew Phillip West · 2020 to 2026
$2.8M
Craig H. Neilsen Foundation 650332NHLBI NIH HHS R01 HL148153
6 · The paper itself

Abstract

The age of incidence of spinal cord injury (SCI) and the average age of people living with SCI is continuously increasing. However, SCI is extensively modeled in young adult animals, hampering translation of research to clinical applications. While there has been significant progress in manipulating axon growth after injury, the impact of aging is still unknown. Mitochondria are essential to successful neurite and axon growth, while aging is associated with a decline in mitochondrial functions. Using isolation and culture of adult cortical neurons, we analyzed mitochondrial changes in 2-, 6-, 12- and 18-month-old mice. We observed reduced neurite growth in older neurons. Older neurons also showed dysfunctional respiration, reduced membrane potential, and altered mitochondrial membrane transport proteins; however, mitochondrial DNA (mtDNA) abundance and cellular ATP were increased. Taken together, these data suggest that dysfunctional mitochondria in older neurons may be associated with the age-dependent reduction in neurite growth. Both normal aging and traumatic injury are associated with mitochondrial dysfunction, posing a challenge for an aging SCI population as the two elements can combine to worsen injury outcomes. The results of this study highlight this as an area of great interest in CNS trauma.

Indexed as

Adenosine TriphosphateAgingAnimalsCell RespirationCells, CulturedCerebral CortexDNA Copy Number VariationsDNA, MitochondrialElectron TransportIntracellular SpaceMembrane Potential, MitochondrialMembrane ProteinsMiceMice, Inbred C57BLMitochondriaMitochondrial MembranesAdenosine TriphosphateDNA, MitochondrialMembrane ProteinsagingCNS Injurydysfunctionmitochondriamitochondrial respirationneurite growth

Identifiers

PMID34209640
PMCPMC8306398
OpenAlexW3174321787

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.