Trial reportNutrients2022
Probiotic
Trial report in Nutrients, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 8 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
62 citing papers in PubMed, 8 syntheses or guidelines pooled it, 79 citations in OpenAlex.
- Gut microbiome modulation can improve cognitive function in older adults: a systematic review and meta-analysis.Age and ageing · 2026Pooled it
- Effect of probiotic supplementation on the gut microbiota diversity in healthy populations: a systematic review and meta-analysis of randomised controlled trials.BMC medicine · 2026Pooled it
- Mediterranean diet and gut microbiota: impact on memory and other cognitive functions: a systematic review.Frontiers in molecular neuroscience · 2026Pooled it
- Can live microbial interventions support healthy aging? A systematic review and meta-analysis of cognitive and muscle outcomes in aging adults.Frontiers in nutrition · 2026Pooled it
- Efficacy and safety of probiotic supplements on cognitive function: a systematic review and meta-analysis of randomized clinical trials.BMC complementary medicine and therapies · 2025Pooled it
- Effects of probiotics, prebiotics, and synbiotics on gut microbiota in older adults: a systematic review and meta-analysis of randomized controlled trials.Nutrition journal · 2025Pooled it
- The Effect of Prebiotics and Probiotics on Levels of Depression, Anxiety, and Cognitive Function: A Meta-Analysis of Randomized Clinical Trials.Brain and behavior · 2025Pooled it
- Pooled it
- Synbiotic Supplementation With Heyndrickxia coagulans TBC169 Improves Chronic Constipation in Middle-Aged and Elderly.Biotechnology journal · 2026Trial
- Efficacy and Safety ofNutrients · 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
- Co-administration of probiotic and vitamin D significantly improves cognitive function in schizophrenic patients: A double-blinded randomized controlled trial.Neuropsychopharmacology reports · 2024Trial
- Trial
- Trial
- Evaluation of a multi-component dietary supplement combined with probiotic and omega-3 in individuals with self-reported symptoms of brain fog: an 8-week exploratory study.Future science OA · 2026Article
- Bifidobacteria: biogeography, host adaptation and ecological functions.Nature reviews. Microbiology · 2026Review
- From Identification to Enzymatic Activity Profiling: Comprehensive Characterization of BloCAβ, a Probiotic β-Carbonic Anhydrase From Bifidobacterium longum.Archiv der Pharmazie · 2026Article
- Gastrointestinal symptoms, faecal short-chain fatty acids and dietary intake in older adults: the Hordaland Health Study 3.European journal of nutrition · 2026Article
- Oxidative Stress in Alzheimer's Disease: Can Dietary Interventions Provide Neuroprotection?Nutrients · 2026Review
- Exploring the Gut-Brain Connection: Are Probiotics the Next Frontier in Alzheimer's Disease Treatment?Probiotics and antimicrobial proteins · 2026Review
2 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Probiotics could improve cognitive functions in patients with neurological disorders such as Alzheimer’s disease, but the effects on cognitive function in healthy older adults without cognitive impairment need further study. The purpose of this study was to investigate the effect of Bifidobacterium longum BB68S (BB68S) on cognitive functions among healthy older adults without cognitive impairment. A randomized, double-blind, placebo-controlled trial was conducted with 60 healthy older adults without cognitive impairment who were divided into probiotic or placebo groups and required to consume either a sachet of probiotic (BB68S, 5 × 1010 CFU/sachet) or placebo once daily for 8 weeks. The Montreal Cognitive Assessment (MoCA) was used as an inclusion screening tool to screen elderly participants with healthy cognitive function in our study, and the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) was used to assess cognitive function in subjects before and after intervention as an assessment tool. BB68S significantly improved subjects’ cognitive functions (total RBANS score increased by 18.89 points after intervention, p < 0.0001), especially immediate memory, visuospatial/constructional, attention, and delayed memory domains. BB68S intervention increased the relative abundances of beneficial bacteria Lachnospira, Bifidobacterium, Dorea, and Cellulosilyticum, while decreasing those of bacteria related to cognition impairment, such as Collinsella, Parabacteroides, Tyzzerella, Bilophila, unclassified_c_Negativicutes, Epulopiscium, Porphyromonas, and Granulicatella. In conclusion, BB68S could improve cognitive functions in healthy elderly adults without cognitive impairment, along with having beneficial regulatory effects on their gut microbiota. This study supports probiotics as a strategy to promote healthy aging and advances cognitive aging research.
Indexed as
Identifiers
What 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.