ArticlePsychopharmacology2021
Effect of Bifidobacterium on olanzapine-induced body weight and appetite changes in patients with psychosis.
Article in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 5 of them syntheses that pooled it.
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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.
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Who cites it
18 citing papers in PubMed, 5 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- Unravelling the role of the gut microbiome in antipsychotic-induced weight gain and metabolic dysfunction in humans and rodents: A systematic review.Dialogues in clinical neuroscience · 2026Pooled it
- The efficacy of Lactobacillus and Bifidobacterium in patients with schizophrenia: a meta-analysis.European archives of psychiatry and clinical neuroscience · 2025Pooled it
- Effects of gut microbiota interventions on patients with schizophrenia: a systematic review and meta-analysis.Frontiers in microbiology · 2025Pooled it
- The impacts of antipsychotic medications on eating-related outcomes: A mixed methods systematic review.PloS one · 2025Pooled it
- Systematic review of probiotics as an adjuvant treatment for psychiatric disorders.Frontiers in behavioral neuroscience · 2023Pooled it
- Availability and effectiveness of multicomponent interventions for early psychosis in 20 low-income and middle-income countries: a systematic review.EClinicalMedicine · 2026Article
- Nutritional Management of Schizophrenia: Gut-Brain Axis Mechanisms and Dietary Interventions.Molecular neurobiology · 2026Review
- Gut microbiota dysbiosis at the interface of neuropsychiatric disorders and their dermatological comorbidities.Gut microbes · 2025Review
- Should we consider microbiota-based interventions as a novel therapeutic strategy for schizophrenia? A systematic review and meta-analysis.Brain, behavior, & immunity - health · 2025Article
- Improved Gut Health May Be a Potential Therapeutic Approach for Managing Prediabetes: A Literature Review.Biomedicines · 2024Review
- A Possible Role of Akkermansia muciniphila in the Treatment of Olanzapine-Induced Weight Gain.Cureus · 2024Review
- Are probiotics effective in reducing the metabolic side effects of psychiatric medication? A scoping review of evidence from clinical studies.Translational psychiatry · 2024Article
- Longitudinal Gut Microbiota Dysbiosis Underlies Olanzapine-Induced Weight Gain.Microbiology spectrum · 2023Article
- Clinical significance of microbiota changes under the influence of psychotropic drugs. An updated narrative review.Frontiers in microbiology · 2023Review
- The regulatory effects of second-generation antipsychotics on lipid metabolism: Potential mechanisms mediated by the gut microbiota and therapeutic implications.Frontiers in pharmacology · 2023Review
- Reviewing the Potential Therapeutic Approaches Targeting the Modulation of Gastrointestinal Microflora in Schizophrenia.International journal of molecular sciences · 2022Review
- Olanzapine-associated dose-dependent alterations for weight and metabolic parameters in a prospective cohort.Basic & clinical pharmacology & toxicology · 2022Article
- Gut microbiome in schizophrenia and antipsychotic-induced metabolic alterations: a scoping review.Therapeutic advances in psychopharmacology · 2022Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
rationaleGut microbiota plays an important role in host metabolism. Antipsychotic drugs can result in metabolic abnormalities. Probiotics may ameliorate the antipsychotic drug-induced metabolic abnormalities by regulating gut microbiota.
objectiveTo determine whether Bifidobacterium intervention can ameliorate olanzapine-induced weight increase.
methodsEnrolled patients were assigned to either the olanzapine or olanzapine plus Bifidobacterium group. The following were assessed: body weight, body mass index (BMI), appetite, latency to increased appetite, and baseline weight increase of more than 7%. All assessments were conducted at baseline and at 4, 8, and 12 weeks of treatment.
resultsWe enrolled 70 patients with schizophrenia or schizophrenic affective disorder, and 67 completed the study. Treatment for 4 weeks led to between-group differences in weight change (2.4 vs. 1.1 kg, p < 0.05) and BMI (0.9 vs. 0.4, p < 0.05). However, this difference disappeared at 8 and 12 weeks of treatment (both p > 0.05). The two groups did not differ in appetite increase at any time point (p > 0.05). The mean time from olanzapine initiation to appetite increase was also not significantly different between the two groups (t = 1.243, p = 0.220).
conclusionsProbiotics may mitigate olanzapine-induced weight gain in the early stage of treatment and delay olanzapine-induced appetite increase.
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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.