From gut to glee: Is butyrate a promising antidepressant? A systematic review and mechanistic insights
Notice bibliographique
Résumé
INTRODUCTION: Despite available therapies for depression, many patients do not achieve adequate improvement, illustrating the need for innovative treatment strategies. Nutritional psychiatry is an emerging area, with increasing evidence that microbially derived butyrate contributes to the beneficial effects of dietary, pre-, pro- and synbiotics interventions - raising the exciting possibility that direct butyrate administration might alleviate depressive symptoms. The main objective was to systematically review the effects of butyrate on depressive symptoms in humans and depressive-like behavior in animals (PROSPERO; CRD42023g0739). METHODS: A search was conducted in MEDLINE, Embase, PsycINFO, and Web of Science, ICTPR and ClinicalTrials.gov up to October 2025. Studies were included if they examined depressive symptoms in humans or relevant behaviors in animal models of depression/anxiety, involved treatment with butyrate formulations, included a control or pre-post comparison, and reported behavioral or clinical outcomes. Eligible designs included case-control, cohort, (randomized) controlled trials, experimental, or in vivo studies published in English or Dutch. Studies were excluded if depression was not the primary focus or if butyrate was combined with another treatment. Risk of bias was assessed with SYRCLE for animal studies and RoB 2 for the human studies. RESULTS: Of the two randomized controlled trials, one found no measurable effect of 1-week oral butyrate in healthy males, whereas the other found reductions in depressive and anxiety symptoms in patients with ulcerative colitis after 12-weeks oral butyrate. Thirty-two animal studies showed that butyrate generally modulated depressive- and anxiety-like phenotypes in rodents, potentially via anti-inflammatory, neuroplastic, epigenetic and gut-mediated mechanisms. DISCUSSION: Preclinical findings support the therapeutic promise of butyrate as a novel intervention for depression, warranting further clinical investigation. ABBREVIATIONS: BDNF, Brain-derived neurotrophic factor; CRS, Chronic restraint stress; CSD, Chronic social defeat; CUMS, Chronic unpredictable mild stress; DASS, Depression, anxiety, Stress Scales; EPM, Elevated plus maze; FMT, Fecal microbiota transplant; FST, Forced swim test; HDAC, Histone deacetylase; HFD, High-fat diet; HPA, Hypothalamic-pituitary-adrenal; ICTRP International Clinical Trials Registry Platform; IL, Interleukin; LDB, Light-dark box; LEIDS-R, Leiden Index of Depression Severity-Revised; LPS, Lipopolysaccharide; MD, Maternal deprivation; MDD, Major depressive disorder; MGBA, Microbiota-gut-brain axis; NORT, Novel object recognition test; OFT, Open field test; PFC, Prefrontal cortex; PRISMA Preferred reporting items for systematic reviews and meta-analyses; SCFA, Short-chain fatty acid; SPT, Sucrose preference test; SYRCLE, Systematic Review Centre for Laboratory Animal Experimentation; TCA, Tricarboxylic acid; TNF, Tumor necrosis factor; TST, Tail suspension test; ZO-1, Zonulin-1.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».