Evidence map›Paper›PMID 41957371›Full record

ArticleNature communications2026

Serpina1e mediates the exercise-induced enhancement of hippocampal memory in male mice.

Hyunyoung Kim, Sanghee Shin, Jeongho Han, Kangseok Yun, Jong-Seo Kim, Hyungju Park

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

6 authors.

Hyunyoung Kim *Research group for Neurovascular Unit, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea.
Sanghee Shin *Center for RNA Research, Institute of Basic Science, Seoul National University, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0002-8786-6995
Jeongho HanResearch group for Neurovascular Unit, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea.
Kangseok YunCenter for RNA Research, Institute of Basic Science, Seoul National University, Seoul, Republic of Korea.
Jong-Seo KimCenter for RNA Research, Institute of Basic Science, Seoul National University, Seoul, Republic of Korea. jongseokim@snu.ac.kr.ORCID http://orcid.org/0000-0002-8909-8440
Hyungju ParkResearch group for Neurovascular Unit, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea. phj2@kbri.re.kr.ORCID http://orcid.org/0000-0002-9010-9434

Funding

National Research Foundation of Korea (NRF) NRF-2021R1A2C109399112National Research Foundation of Korea (NRF) RS-2024-00440824
6 · The paper itself

Abstract

Exercise enhances learning and memory, not only through improved cardiometabolic but also through body-brain interactions mediated by secreted factors. Given the prominent role of skeletal muscle during exercise, muscle-derived factors, myokines, are believed to mediate the exercise-induced cognitive enhancements. Here, we demonstrate that intramuscular Serpina1e is upregulated following exercise in male mice. Systemic delivery of recombinant Serpina1e or intramuscular overexpression of Serpina1e reproduces exercise-induced memory enhancements in sedentary male mice. Conversely, muscle-specific depletion of Serpina1e abolishes hippocampal memory enhancement, indicating a requirement of muscle-derived Serpina1e for these cognitive benefits. Mechanistically, elevated plasma Serpina1e stimulates neurogenesis, brain-derived neurotrophic factor (BDNF) expression, and neurite growth in the hippocampus by crossing the blood-cerebrospinal fluid (CSF) and blood-brain barrier. Our findings identify Serpina1e as a key mediator of skeletal muscle-brain interaction that enables the beneficial effects of exercise on cognitive function.

Indexed as

alpha 1-AntitrypsinHippocampusMemoryPhysical Conditioning, AnimalAnimalsBlood-Brain BarrierBrain-Derived Neurotrophic FactorCognitionCognitive EnhancementMaleMiceMice, Inbred C57BLMuscle, SkeletalMyokinesNeurogenesisalpha 1-AntitrypsinBrain-Derived Neurotrophic FactorMyokinesSerpina1e protein, mouse

Identifiers

PMID41957371
PMCPMC13243488

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.