SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2023
Probiotic supplementation improved cognitive function in cognitively impaired and healthy older adults: a systematic review of recent trials.
Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 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
22 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Role of Probiotics in Management of Depressive Symptoms and Cognitive Impairment in Patients With Depression: An Updated Analysis of Trials.Brain and behavior · 2025Pooled it
- Probiotics supplementation or probiotic-fortified products on sarcopenic indices in older adults: systematic review and meta-analysis from recent randomized controlled trials.Frontiers in aging · 2024Pooled it
- Cognitive and Emotional Effect of a Multi-species Probiotic Containing Lactobacillus rhamnosus and Bifidobacterium lactis in Healthy Older Adults: A Double-Blind Randomized Placebo-Controlled Crossover Trial.Probiotics and antimicrobial proteins · 2025Trial
- Exploring the acute and chronic effects of a multistrain probiotic supplement on cognitive function and mood in healthy older adults: a randomized controlled trial.The American journal of clinical nutrition · 2025Trial
- Safety Evaluation of Weissella paramesenteroides MW-142 Isolated From Traditional Fermented Mulberry Wine.MicrobiologyOpen · 2026Article
- Obesity-induced cognitive impairment: Underlying mechanisms and therapeutic prospects.Metabolism open · 2026Review
- Exercise-based modulation of the gut-brain axis: a new direction for neurorehabilitation in Alzheimer's disease.Frontiers in aging neuroscience · 2026Review
- The microbiota-gut-brain axis in mild cognitive impairment and Alzheimer's disease: a scoping review of human studies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Aging and the microbiome: implications for health and disease.BMB reports · 2026Review
- Synbiotics in Alzheimer's disease: mechanisms, clinical evidence, and therapeutic prospects.Journal of translational medicine · 2025Review
- Microbial modulators of the mind: probiotic interventions in hippocampal neurogenesis and cognitive flexibility.Antonie van Leeuwenhoek · 2025Review
- Multimodal Interventions Targeting Gut Microbiota and Microbial Metabolites in Cognitive Impairment.Cureus · 2025Review
- Clinical significance of perioperative probiotic intervention on recovery following intestinal surgery.World journal of gastrointestinal surgery · 2025Article
- The Role of the Gut Microbiome and Probiotics in Sports Performance: A Narrative Review Update.Nutrients · 2025Review
- Gut-Brain Axis and Brain Microbiome Interactions from a Medical Perspective.Brain sciences · 2025Review
- Leveraging microbiome-based interventions to improve the management of neurodegenerative diseases: evidence for effects along the microbiota-gut-brain axis.Frontiers in nutrition · 2025Review
- What We Know About the Actual Role of Traditional Probiotics in Health and Disease.Probiotics and antimicrobial proteins · 2024Review
- The Influence of Cecal Microbiota Transplantation on Chicken Injurious Behavior: Perspective in Human Neuropsychiatric Research.Biomolecules · 2024Review
- Immune Remodeling during Aging and the Clinical Significance of Immunonutrition in Healthy Aging.Aging and disease · 2024Review
- Enterotype-Dependent Probiotic-Mediated Changes in the Male Rat Intestinal Microbiome In Vivo and In Vitro.International journal of molecular sciences · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionRecent evidence suggests that there is clear association between microbiota and cognitive functioning, which is known as microbiome-gut-brain axis. Probiotic bacteria consumption can alter human microbiota; therefore, probiotic supplementation might affect the gut microbiota dynamics and influence cognitive function.
methodsThree electronic databases including PubMed, ProQuest, and EBSCOHost databases were utilized. Manual hand search of article was also done. We selected randomized controlled trial articles that measure cognitive function (as the primary outcome) after intervention with probiotic supplementation on older adult population with AD, MCI, or healthy condition. The following terms and its variant were used: "probiotic," "cognitive function," "mild cognitive impairment," "dementia," and "Alzheimer's disease."
resultNine of 10 included studies (AD, MCI, or healthy cognition population) showed cognitive function was improved significantly after probiotic supplementation, compared to control group. One study that included severe AD did not show significant changes.
conclusionMost studies involving AD, MCI, or healthy older adults showed cognitive improvement in subjects treated with probiotics for 12-24 weeks.
Indexed as
Identifiers
36529793What OpenQuestion holds
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.