Trial reportMediators of inflammation2020
Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1
Trial report in Mediators of inflammation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 7 of them syntheses that pooled 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.
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.
Who cites it
28 citing papers in PubMed, 7 syntheses or guidelines pooled it, 56 citations in OpenAlex.
- Psychobiotic, nutritional, and behavioral interventions targeting the microbiome-gut-brain axis in depression, anxiety, and stress: a scoping review.Frontiers in nutrition · 2026Pooled it
- The Health Benefits of Probiotic Lactiplantibacillus plantarum: A Systematic Review and Meta-Analysis.Probiotics and antimicrobial proteins · 2025Pooled it
- Pooled it
- Can We Modulate Our Second Brain and Its Metabolites to Change Our Mood? A Systematic Review on Efficacy, Mechanisms, and Future Directions of "Psychobiotics".International journal of molecular sciences · 2025Pooled it
- Effectiveness of Psychobiotics in the Treatment of Psychiatric and Cognitive Disorders: A Systematic Review of Randomized Clinical Trials.Nutrients · 2024Pooled it
- The current state of research for psychobiotics use in the management of psychiatric disorders-A systematic literature review.Frontiers in psychiatry · 2023Pooled it
- Pooled it
- The effect of probiotic supplementation on perceived stress and bowel function in healthy young adults: evidence from a randomized controlled trial in Makkah.Frontiers in nutrition · 2025Trial
- The Pediatric Microbiota-Gut-Brain Axis: Implications for Neuropsychiatric Development and Intervention.Children (Basel, Switzerland) · 2025Review
- Probiotics in colorectal cancer prevention and therapy: mechanisms, benefits, and challenges.Discover oncology · 2025Review
- Unraveling the Complex Interplay Between Neuroinflammation and Depression: A Comprehensive Review.International journal of molecular sciences · 2025Review
- Precision Psychobiotics for Gut-Brain Axis Health: Advancing the Discovery Pipelines to Deliver Mechanistic Pathways and Proven Health Efficacy.Microbial biotechnology · 2025Review
- Chronic unpredictable mild stress induces anxiety-like behavior in female C57BL/6N mice, accompanied by alterations in inflammation and the kynurenine pathway of tryptophan metabolism.Frontiers in neuroscience · 2025Article
- Inflammatory state moderates response to cannabis on negative affect and sleep quality in individuals with anxiety.Frontiers in behavioral neuroscience · 2025Article
- Human Gut Microbiota for Diagnosis and Treatment of Depression.International journal of molecular sciences · 2024Review
- The effect of psychoactive bacteria, Bifidobacterium longum Rosell®-175 and Lactobacillus rhamnosus JB-1, on brain proteome profiles in mice.Psychopharmacology · 2024Article
- Potential causal association between gut microbiome and posttraumatic stress disorder.Translational psychiatry · 2024Article
- Gut-Brain Axis Impact on Canine Anxiety Disorders: New Challenges for Behavioral Veterinary Medicine.Veterinary medicine international · 2024Review
- The modulatory role of gut microbiota on host behavior: exploring the interaction between the brain-gut axis and the neuroendocrine system.AIMS neuroscience · 2024Review
- The Gut-Brain Axis and the Microbiome in Anxiety Disorders, Post-Traumatic Stress Disorder and Obsessive-Compulsive Disorder.Current neuropharmacology · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundProbiotic oral intake, via modulation of the microbiota-gut-brain axis, can impact brain activity, mood, and behavior; therefore, it may be beneficial against psychological distress and anxiety disorders. Inflammatory cytokines can influence the onset and progression of several neurodegenerative mood disorders, and the IL-1
methods150 subjects were randomized into two different groups, probiotic oral suspension group (POSG) and placebo control group (PCG), and received the relative treatment for 12 weeks. Psychological profile assessment by Hamilton Anxiety Rating Scale (HAM-A), Body Uneasiness Test (BUT), and Symptom Checklist 90-Revised (SCL90R) was administered to all volunteers. Genotyping was performed on DNA extracted from salivary samples.
resultsAfter 12 weeks of intervention, a significant reduction of HAM-A total score was detected in the POSG (
conclusionsConsumption of probiotics mitigates anxiety symptoms, especially in healthy adults with the minor A allele of rs16944 as a risk factor. Our results encourage the use of probiotics in anxiety disorders and suggest genetic association studies for psychobiotic-personalized therapy.
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Registered trials
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.