Evidence map›Paper›PMID 30883547›Full record

ArticlePLoS biology2019

Serotonin receptor HTR6-mediated mTORC1 signaling regulates dietary restriction-induced memory enhancement.

Ling-Ling Teng, Guan-Ling Lu, Lih-Chu Chiou, Wei-Sheng Lin, Ya-Yun Cheng, Tai-En Hsueh, Yi-Ching Huang, Nai-Hsuan Hwang, Jin-Wei Yeh, Ruey-Ming Liao and 6 more

Abstract read
In one paragraph

Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Serotonin neuromodulation directs optic nerve regeneration.Development (Cambridge, England) · 2025
    Article
  4. Gut microbiome and host TOR pathway interact to regulate predator-induced aversive memory inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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  17. Review
  18. Blockade of Serotonin 5-HTInternational journal of molecular sciences · 2021
    Article
  19. Article
  20. 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

16 authors.

Ling-Ling TengGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Guan-Ling LuGraduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, Taiwan.
Lih-Chu ChiouGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Wei-Sheng LinGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ya-Yun ChengGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Tai-En HsuehGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Yi-Ching HuangGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Nai-Hsuan HwangGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Jin-Wei YehGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
Ruey-Ming LiaoInstitute of Neuroscience, National Cheng-Chi University, Taipei, Taiwan.
Shou-Zen FanDepartment of Anesthesiology, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan.
Jui-Hung YenDepartment of Microbiology and Immunology, Indiana University School of Medicine, Fort Wayne, Indiana, United States of America.
Tsai-Feng FuDepartment of Applied Chemistry, National Chi Nan University, Nantou, Taiwan.
Ting-Fen TsaiDepartment of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan.
Ming-Shiang WuDepartment of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan.
Pei-Yu WangGraduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.ORCID 0000-0002-1792-8935

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dietary restriction (DR; sometimes called calorie restriction) has profound beneficial effects on physiological, psychological, and behavioral outcomes in animals and in humans. We have explored the molecular mechanism of DR-induced memory enhancement and demonstrate that dietary tryptophan-a precursor amino acid for serotonin biosynthesis in the brain-and serotonin receptor 5-hydroxytryptamine receptor 6 (HTR6) are crucial in mediating this process. We show that HTR6 inactivation diminishes DR-induced neurological alterations, including reduced dendritic complexity, increased spine density, and enhanced long-term potentiation (LTP) in hippocampal neurons. Moreover, we find that HTR6-mediated mechanistic target of rapamycin complex 1 (mTORC1) signaling is involved in DR-induced memory improvement. Our results suggest that the HTR6-mediated mTORC1 pathway may function as a nutrient sensor in hippocampal neurons to couple memory performance to dietary intake.

Indexed as

3-Hydroxybutyric AcidAnimalsBlotting, WesternCorticosteroneElectrophysiologyGlucose Tolerance TestHippocampusLong-Term PotentiationMaleMechanistic Target of Rapamycin Complex 1MemoryMiceMice, Inbred C57BLNeuronsReceptors, SerotoninRNA, Messenger3-Hydroxybutyric AcidCorticosteroneMechanistic Target of Rapamycin Complex 1Receptors, SerotoninRNA, MessengerSerotoninserotonin 6 receptor

Identifiers

PMID30883547
PMCPMC6438579

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.