Trial reportNutrients2019
Serum Uric Acid-Lowering Effects of Combined Glycine and Tryptophan Treatments in Subjects with Mild Hyperuricemia: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study.
Trial report in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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
13 citing papers in PubMed, 21 citations in OpenAlex.
- Combined metabolic activators therapy ameliorates liver fat in nonalcoholic fatty liver disease patients.Molecular systems biology · 2021Trial
- Trial
- Nutritional Intervention With Perennial Ryegrass Modulates UA Metabolism in Goslings via Gut Microbiota-Antioxidant Pathway Modulation.Food science & nutrition · 2026Article
- Regulatory mechanisms of programmed cell death in hyperuricaemia and their disease relevance.Frontiers in cell and developmental biology · 2026Review
- Modulators of urinary pH in the context of urinary stone disease: a literature review.Translational andrology and urology · 2025Review
- The effectiveness and safety of specific dietary supplements in modulating uric acid levels, oxidative stress, and lipid metabolism in patients: a network meta-analysis of 13 interventions.Nutrition & metabolism · 2025Article
- Article
- Increased prevalence of gout in patients with inflammatory bowel disease: A population-based study.JGH open : an open access journal of gastroenterology and hepatology · 2023Article
- Review
- The Management of Diabetes with Hyperuricemia: Can We Hit Two Birds with One Stone?Journal of inflammation research · 2023Review
- The Therapeutic Effect and the Potential Mechanism of Flavonoids and Phenolics ofMolecules (Basel, Switzerland) · 2022Article
- RNA-seq reveals insights into molecular mechanisms of metabolic restoration via tryptophan supplementation in low birth weight piglet model.Journal of animal science · 2022Article
- Comprehensive metabolomic profiling in early IgA nephropathy patients reveals urine glycine as a prognostic biomarker.Journal of cellular and molecular medicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We determined the serum uric acid-lowering effects of combined daily supplementation of glycine and tryptophan in patients with mild hyperuricemia using a randomized, double-blind, placebo-controlled, crossover clinical trial design. Japanese healthy adult males and females with mild hyperuricemia (fasting serum uric acid of 6.6⁻7.9 mg/dL) ingested a powder mixture containing 3.0 g of glycine and 0.2 g of tryptophan or a placebo powder once daily at bedtime for 6 weeks. Combined supplementation with glycine and tryptophan significantly decreased serum uric acid levels (from 7.1 mg/dL to 6.7 mg/dL,
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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.