Cited by 41Genetics, Aging, and Longevity in Model OrganismsAntioxidants, Aging, Portulaca oleraceaBiochemical effects in animals

L-Arginine Exerts Excellent Anti-Stress Effects on Stress-Induced Shortened Lifespan, Cognitive Decline and Depression

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Pervin, Monira, Unno, Keiko, Konishi, Tomokazu, Nakamura, Yoriyuki·2021·International Journal of Molecular Sciences

Abstract

The anti-stress potential of dietary L-arginine (Arg) was assessed in psychosocially stress-loaded senescence-accelerated (SAMP10) mice. Although this strain of mouse is sensitive to stress, daily administration of Arg at 3 mg/kg significantly suppressed aging-related cognitive decline and behavioral depression at nine months of age and counteracted stress-induced shortened lifespan. To investigate the mechanism of the anti-stress effect of Arg in the brain, early changes in oxidative damage and gene expression levels were measured using SAMP10 mice that were stress-loaded for three days. Increased lipid peroxidation in the brains of stressed mice was significantly lowered by Arg intake. Several genes associated with oxidative stress response and neuronal excitotoxic cell death, including Nr4a1, Arc, and Cyr61, remarkably increased in response to psychosocial stress; however, their expression was significantly suppressed in mice that ingested Arg even under stress conditions. In contrast, the genes that maintain mitochondrial functions and neuronal survival, including Hba-a2 and Hbb-b2, were significantly increased in mice that ingested Arg. These results indicate that Arg reduces oxidative damage and enhances mitochondrial functions in the brain. We suggest that the daily intake of Arg plays important roles in reducing stress-induced brain damage and slowing aging.

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Authors
Pervin, M., Unno, K., Konishi, T., & Nakamura, Y.
Affiliations
  • Shizuoka University (JP)
  • Akita Prefectural University (JP)
Corresponding author
  • Pervin, Monira
  • Unno, Keiko
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2021-01-06
Volume
22
Issue
2
Pages
508
ISSN
1422-0067 (ISSN-L)
OpenAlex
W3118741184
Cited by
41
References
62
Citations by year
2026: 8 · 2025: 9 · 2024: 10 · 2023: 8 · 2022: 5 · 2021: 1
FWCI
2.15
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Kobayashi International Scholarship Foundation (6)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Antioxidants, Aging, Portulaca oleracea
  • Health Sciences › Medicine › Physiology › Biochemical effects in animals
Keywords
L-arginine, anti-stress effects, psychosocial stress, accelerated aging, cognitive decline, depression, lifespan reduction, oxidative stress, lipid peroxidation, mitochondrial function, Nur77, Arc, CYR61, excitotoxicity, dietary supplementation
MeSH terms
Animals, Arginine, Depression, Gene Expression Regulation, Hippocampus, Learning, Longevity, Male, Mice, Inbred C57BL, Stress, Physiological, Survival Analysis, Oxidative Stress, Gene Expression Profiling, Mice, Cysteine-Rich Protein 61, Nuclear Receptor Subfamily 4, Group A, Member 1, Cognitive Dysfunction

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