Evidence map›Paper›PMID 33438085›Full record

Trial reportInternational urology and nephrology2021

Can curcumin supplementation reduce plasma levels of gut-derived uremic toxins in hemodialysis patients? A pilot randomized, double-blind, controlled study.

Roberta T Salarolli, Livia Alvarenga, Ludmila F M F Cardozo, Karla T R Teixeira, Laís de S G Moreira, Jordana D Lima, Silvia D Rodrigues, Lia S Nakao, Denis Fouque, Denise Mafra

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International urology and nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
5.8field-weighted citation impact, top 3% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Antioxidants for adults with chronic kidney disease.The Cochrane database of systematic reviews · 2023
    Pooled it
  3. Renal failure · 2022
    Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Effects ofLife (Basel, Switzerland) · 2025
    Article
  16. Dietary Intake and Gut Microbiome in CKD.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Review
  17. Review
  18. Review
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Roberta T SalarolliGraduate Program in Nutrition Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil.
Livia AlvarengaGraduate Program in Medical Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil.
Ludmila F M F CardozoGraduate Program in Cardiovascular Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil.
Karla T R TeixeiraGraduate Program in Medical Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil.
Laís de S G MoreiraGraduate Program in Medical Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil.
Jordana D LimaDepartment of Basic Pathology, Federal University of Parana (UFPR), Curitiba, Brazil.
Silvia D RodriguesDepartment of Basic Pathology, Federal University of Parana (UFPR), Curitiba, Brazil.
Lia S NakaoDepartment of Basic Pathology, Federal University of Parana (UFPR), Curitiba, Brazil.
Denis FouqueDepartment of Nephrology, Hospital Lyon Sud, INSERM 1060, Université Claude Bernard, 69495, Lyon, France.
Denise MafraGraduate Program in Nutrition Sciences, Federal Fluminense University (UFF), Niterói, RJ, Brazil. dmafra30@gmail.com.ORCID http://orcid.org/0000-0001-6752-6056
Universidade Federal Fluminense · BRUniversidade Federal do Paraná · BRUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGut dysbiosis is common in patients with chronic kidney disease (CKD) and is closely related to inflammatory processes. Some nutritional strategies, such as bioactive compounds present in curcumin, have been proposed as an option to modulate the gut microbiota and decrease the production of uremic toxins such as indoxyl sulfate (IS), p-cresyl sulfate (pCS) and indole-3 acetic acid (IAA).

objectiveTo evaluate the effects of curcumin supplementation on uremic toxins plasma levels produced by gut microbiota in patients with CKD on hemodialysis (HD).

methodsRandomized, double-blind trial in 28 patients [53.6 ± 13.4 years, fourteen men, BMI 26.7 ± 3.7 kg/m

conclusionThe oral supplementation of curcumin for three months seems to reduce p-CS plasma levels in HD patients, suggesting a gut microbiota modulation.

Indexed as

Dietary SupplementsGastrointestinal MicrobiomeRenal DialysisAdultAgedCresolsCurcuminDouble-Blind MethodFemaleHumansIndicanIndoleacetic AcidsMaleMiddle AgedPilot ProjectsSulfuric Acid Esters4-cresol sulfateCresolsCurcuminIndicanindoleacetic acidIndoleacetic AcidsSulfuric Acid EstersToxins, BiologicalChronic kidney diseaseCurcuminGut microbiotaHemodialysisUremic toxins

Identifiers

PMID33438085
OpenAlexW3120324482

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 Socratic graph.