Evidence map›Paper›PMID 29230855›Full record

ArticleJournal of neuroscience research2018

A role for autophagy in long-term spatial memory formation in male rodents.

Michael J Hylin, Jing Zhao, Karthikeyan Tangavelou, Natalia S Rozas, Kimberly N Hood, Jacalyn S MacGowan, Anthony N Moore, Pramod K Dash

Open access · greenAbstract read
In one paragraph

Article in Journal of neuroscience research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Turning garbage into gold: Autophagy in synaptic function.Current opinion in neurobiology · 2025
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Organization of the autophagy pathway in neurons.Current opinion in neurobiology · 2022
    Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
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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

8 authors at 1 institution in 1 country.

Michael J HylinDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Jing ZhaoDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Karthikeyan TangavelouDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Natalia S RozasDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Kimberly N HoodDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Jacalyn S MacGowanDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Anthony N MooreDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.
Pramod K DashDepartment of Neurobiology and Anatomy, the University of Texas McGovern Medical School, Houston, Texas, USA.ORCID 0000-0002-0426-7242
The University of Texas Health Science Center · US

Funding

Reducing Memory Dysfunction Following Brain InjuryR01NS087149 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI DASH, PRAMOD K · 2014 to 2018
$2.3M
Reducing Neuronal Loss After Traumatic Brain InjuryR01NS090935 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI DASH, PRAMOD K · 2015 to 2019
$2.1M
NINDS NIH HHS R01 NS087149NINDS NIH HHS R01 NS090935
6 · The paper itself

Abstract

A hallmark of long-term memory formation is the requirement for protein synthesis. Administration of protein synthesis inhibitors impairs long-term memory formation without influencing short-term memory. Rapamycin is a specific inhibitor of target of rapamycin complex 1 (TORC1) that has been shown to block protein synthesis and impair long-term memory. In addition to regulating protein synthesis, TORC1 also phosphorylates Unc-51-like autophagy activating kinase-1 (Ulk-1) to suppress autophagy. As autophagy can be activated by rapamycin (and rapamycin inhibits long-term memory), our aim was to test the hypothesis that autophagy inhibitors would enhance long-term memory. To examine if learning alters autophagosome number, we used male reporter mice carrying the GFP-LC3 transgene. Using these mice, we observed that training in the Morris water maze task increases the number of autophagosomes, a finding contrary to our expectations. For learning and memory studies, male Long Evans rats were used due to their relatively larger size (compared to mice), making it easier to perform intrahippocampal infusions in awake, moving animals. When the autophagy inhibitors 3-methyladenine (3-MA) or Spautin-1 were administered bilaterally into the hippocampii prior to training in the Morris water maze task, the drugs did not alter learning. In contrast, when memory was tested 24 hours later by a probe trial, significant impairments were observed. In addition, intrahippocampal infusion of an autophagy activator peptide (TAT-Beclin-1) improved long-term memory. These results indicate that autophagy is not necessary for learning, but is required for long-term memory formation.

Indexed as

AdenineAnimalsAntigens, NuclearAutophagyBeclin-1BenzylaminesGlial Fibrillary Acidic ProteinHippocampusMaleMaze LearningMemory, Long-TermMemory, Short-TermMiceMicrotubule-Associated ProteinsNerve Tissue ProteinsPhosphatidylinositol 3-Kinase3-methyladenineAdenineAntigens, NuclearAnxa3 protein, ratBeclin-1Becn1 protein, ratBenzylaminesGfap protein, ratGlial Fibrillary Acidic ProteinMicrotubule-Associated ProteinsNerve Tissue ProteinsPhosphatidylinositol 3-KinaseQuinazolinesRbfox3 protein, ratspautin-1autophagyhippocampuslong-term memorywater maze

Identifiers

PMID29230855
PMCPMC6425965
OpenAlexW2773659009

What Socratic 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 Socratic graph.