Trial reportDiabetologia2018
Plasma branched chain/aromatic amino acids, enriched Mediterranean diet and risk of type 2 diabetes: case-cohort study within the PREDIMED Trial.
Trial report in Diabetologia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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
80 citing papers in PubMed, 1 synthesis or guideline pooled it, 132 citations in OpenAlex.
- Dietary intervention improves metabolic levels in patients with type 2 diabetes through the gut microbiota: a systematic review and meta-analysis.Frontiers in nutrition · 2023Pooled it
- Impact of comprehensive lifestyle interventions on plasma branched-chain amino acid concentrations: a randomized trial.The American journal of clinical nutrition · 2025Trial
- Trial
- A legume-enriched diet improves metabolic health in prediabetes mediated through gut microbiome: a randomized controlled trial.Nature communications · 2025Trial
- Plasma metabolite profiles associated with the World Cancer Research Fund/American Institute for Cancer Research lifestyle score and future risk of cardiovascular disease and type 2 diabetes.Cardiovascular diabetology · 2023Trial
- Dietary Strawberries Improve Serum Metabolites of Cardiometabolic Risks in Adults with Features of the Metabolic Syndrome in a Randomized Controlled Crossover Trial.International journal of molecular sciences · 2023Trial
- Plasma acylcarnitines and risk of incident heart failure and atrial fibrillation: the Prevención con dieta mediterránea study.Revista espanola de cardiologia (English ed.) · 2022Trial
- Association of Modifiable Lifestyle Factors with Plasma Branched-Chain Amino Acid Metabolites in Women.The Journal of nutrition · 2022Trial
- Trial
- Changes of Branched-Chain Amino Acids and Ectopic Fat in Response to Weight-loss Diets: the POUNDS Lost Trial.The Journal of clinical endocrinology and metabolism · 2020Trial
- Preliminary evidence of effects of potassium chloride on a metabolomic path to diabetes and cardiovascular disease.Metabolomics : Official journal of the Metabolomic Society · 2020Trial
- Glycolysis/gluconeogenesis- and tricarboxylic acid cycle-related metabolites, Mediterranean diet, and type 2 diabetes.The American journal of clinical nutrition · 2020Trial
- Gut microbiota translocation contributes to early islet apoptosis in streptozotocin-induced diabetes.mSystems · 2026Article
- Gut Mycobiota-Associated Tryptophan Catabolites Protect Against Metabolic Dysfunction-Associated Steatotic Liver Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Article
- Mediterranean Dietary Pattern in Type 2 Diabetes Management: Pathways and Clinical Evidence.Biomedicines · 2026Review
- Dietary Pattern-Induced Gut Microbiota Differences Are Associated with White Matter Volume Changes in Middle-Aged Female Macaques.Nutrients · 2026Article
- Ancestry-specific genetics of amino acids and microbiota-related metabolites reveal causal effects on cardiometabolic disease in Chinese populations.Cardiovascular diabetology · 2026Article
- Identifying the Ratio of Circulating Cinnamoylglycine to Isoleucine as a Biomarker Linking Diet Quality, Microbial Metabolism, and Type 2 Diabetes Risk in the Coronary Artery Risk Development in Young Adults (CARDIA) Cohorts.The Journal of nutrition · 2026Article
- Adherence to the Mediterranean Diet and Metabolic Gene Expression in Smokers: An Integrative Transcriptomic Approach.Nutrients · 2026Article
20 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
25 authors at 8 institutions in 2 countries.
Funding
Abstract
aims/hypothesisBranched-chain amino acids (BCAAs) and aromatic amino acids (AAAs) are associated with type 2 diabetes. However, repeated measurements of BCAA/AAA and their interactions with dietary interventions have not been evaluated. We investigated the associations between baseline and changes at 1 year in BCAA/AAA with type 2 diabetes in the context of a Mediterranean diet (MedDiet) trial.
methodsWe included 251 participants with incident type 2 diabetes and a random sample of 694 participants (641 participants without type 2 diabetes and 53 overlapping cases) in a case-cohort study nested within the PREvención con DIeta MEDiterránea (PREDIMED) trial. Participants were randomised to a MedDiet+extra-virgin olive oil (n = 273), a MedDiet+nuts (n = 324) or a control diet (n = 295). We used LC-MS/MS to measure plasma levels of amino acids. Type 2 diabetes was a pre-specified secondary outcome of the PREDIMED trial.
resultsElevated plasma levels of individual BCAAs/AAAs were associated with higher type 2 diabetes risk after a median follow-up of 3.8 years: multivariable HR for the highest vs lowest quartile ranged from 1.32 for phenylalanine ([95% CI 0.90, 1.92], p for trend = 0.015) to 3.29 for leucine ([95% CI 2.03, 5.34], p for trend<0.001). Increases in BCAA score at 1 year were associated with higher type 2 diabetes risk in the control group with HR per SD = 1.61 (95% CI 1.02, 2.54), but not in the MedDiet groups (p for interaction <0.001). The MedDiet+extra-virgin olive oil significantly reduced BCAA levels after 1 year of intervention (p = 0.005 vs the control group). CONCLUSIONS/
interpretationOur results support that higher baseline BCAAs and their increases at 1 year were associated with higher type 2 diabetes risk. A Mediterranean diet rich in extra-virgin olive oil significantly reduced the levels of BCAA and attenuated the positive association between plasma BCAA levels and type 2 diabetes incidence. Clinical trial number: SRCTN35739639 ( www.controlled-trials.com ).
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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.