Cited by 49Tryptophan and brain disordersTreatment of Major DepressionStress Responses and Cortisol

Prefrontal cortex infusion of beta-hydroxybutyrate, an endogenous NLRP3 inflammasome inhibitor, produces antidepressant-like effects in a rodent model of depression

Open access
Kajitani, Naofumi, Iwata, Masaaki, Miura, Akihiko, Tsunetomi, Kyohei, Yamanashi, Takehiko, Matsuo, Ryoichi, Nishiguchi, Tsuyoshi, Fukuda, Saki +7 more·2020·Neuropsychopharmacology Reports

Abstract

AIMS: Neuroinflammation is deeply related to the pathophysiology of depression. Beta-hydroxybutyrate (BHB), which is an endogenous ketone body, exerts anti-inflammatory effects, and peripheral administration of BHB induces antidepressant effects in an animal model of depression; however, it is unclear whether BHB specifically mediates these actions in the brain. Thus, we administered BHB directly into the brain in a rodent model of depression using a chronic unpredictable stress (CUS) paradigm. METHODS: BHB was continuously microinjected into the prefrontal cortex (PFC) using osmotic pumps for 21 days. Behavioral testing included the forced swim test (FST) and the open field test (OFT); the levels of pro-inflammatory cytokines, such as interleukin 1β (IL-1β) and tumor necrosis factor α (TNF-α), were quantified in the PFC, and the concentration of corticosterone in blood serum was measured. RESULTS: BHB administration into the PFC significantly decreased immobility time in the FST, without significantly altering locomotor activity assessed in the OFT. Also, CUS significantly increased the levels of TNF-α in the PFC and decreased serum corticosterone levels; these changes were attenuated by BHB administration. These findings suggest that a small amount of BHB administered into the PFC directly produces antidepressant effects, possibly through anti-inflammatory mechanisms, and can improve hypothalamus-pituitary-adrenal axis responses. CONCLUSION: BHB may be a novel therapeutic candidate for the treatment of depression based on the neuro-inflammatory hypothesis, and the PFC is a region implicated in the antidepressant action of BHB.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/npr2.12099

Cites

56 of 56 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Inflammasome activation has an essential role in the progression of several neurological disorders like MS, AD, PPD, and NPS.

    “In the CNS, inflammasome activation has been mainly linked to neuroinflammatory conditions. As example, it has an essential role in the progression of several neurological disorders like MS, AD, PPD, and NPS (132, 193–197).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Kajitani, N., Iwata, M., Miura, A., Tsunetomi, K., Yamanashi, T., Matsuo, R., Nishiguchi, T., Fukuda, S., Nagata, M., Shibushita, M., Yamauchi, T., Pu, S., Shirayama, Y., Watanabe, K., & Kaneko, K.
Affiliations
  • Tottori University (JP)
  • Nara Medical University (JP)
  • Teikyo University Chiba Medical Center (JP)
  • Watanabe Hospital Tottori Japan
Corresponding author
Iwata, Masaaki
Venue
Neuropsychopharmacology Reports
Publisher
Wiley
Published
2020-03-03
Volume
40
Issue
2
Pages
157-165
ISSN
2574-173X (ISSN-L)
OpenAlex
W3009937427
Cited by
49
References
56
Citations by year
2026: 5 · 2025: 6 · 2024: 7 · 2023: 7 · 2022: 7 · 2021: 11 · 2020: 6
FWCI
2.31
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Tottori University research result repository (Tottori University) (submittedVersion)
Funders
  • GlaxoSmithKline foundation
  • SENSHIN Medical Research Foundation
  • Japan Society for the Promotion of Science (JP15K19729, JP17K10273)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
beta-hydroxybutyrate, depression, prefrontal cortex, neuroinflammation, NLRP3 inflammasome, chronic unpredictable mild stress, antidepressant effects, IL-1β, TNF-α, corticosterone, hypothalamic-pituitary-adrenal axis, ketone bodies, forced swim test
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Animals, Antidepressive Agents, Corticosterone, Depression, Disease Models, Animal, Infusion Pumps, Male, Microinjections, Rodentia, Rats, Sprague-Dawley, Prefrontal Cortex, 3-Hydroxybutyric Acid, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review