Evidence map›Paper›PMID 41162864›Full record

Trial reportBMC cardiovascular disorders2025

Impact of astaxanthin on oxidative markers, uric acid, and clinical symptoms in heart failure: a randomized clinical trial.

Shirin Ghotboddin Mohammadi, Davood Shafie, Awat Feizi, Mohammad Bagherniya, Ali-Reza Ahmadi, Marzieh Kafeshani

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC cardiovascular disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Astaxanthin fromMarine drugs · 2025
    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

6 authors.

Shirin Ghotboddin MohammadiDepartment of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Davood ShafieHeart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
Awat FeiziEpidemiology and Biostatistics Department, Health School, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad BagherniyaDepartment of Community Nutrition, Food Security Research Center, School of Nutrition and Food Science Isfahan University of Medical Sciences, Isfahan, Iran.
Ali-Reza AhmadiDepartment of Biomedical Sciences, Women Research Center, Alzahra University, Tehran, Iran.
Marzieh KafeshaniNutrition and Food Security Research Center and Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran. kafeshani_nut@yahoo.com.

Funding

Isfahan University of Medical Sciences 3402807
6 · The paper itself

Abstract

BACKGROUND AND

aimsChronic heart failure (HF) is often linked to increased oxidative stress and metabolic issues like high uric acid, which can worsen outcomes. Astaxanthin (ASX), a strong antioxidant, may help reduce these harmful effects. This study aimed to investigate the effects of ASX supplementation on oxidative stress markers as the primary outcome and clinical symptoms in patients with HF.

methodsIn this randomized, double-blind, placebo-controlled clinical trial, 80 patients with HF were enrolled and randomly assigned to receive either ASX (20 mg/day) or a placebo (20 mg/day of maltodextrin) for 8 weeks. Biomarkers including total antioxidant capacity (TAC), malondialdehyde (MDA), superoxide dismutase (SOD), serum UA, and clinical symptoms (dyspnea, fatigue, appetite) were assessed pre-and post-intervention.

resultsAfter eight weeks, compared to the placebo group, participants receiving ASX supplementation showed a significant increase in TAC (0.12 vs. -0.04 mmol/L, P = 0.002) and SOD levels (156.92 vs. 36.14 U/mL, P < 0.001). In contrast, the ASX group demonstrated significantly greater reductions in MDA (-2.19 vs. -0.68 nmol/L, P < 0.001) and serum UA levels (-1.82 vs. -0.63 mg/dl, P = 0.003) compared to placebo. Furthermore, among ASX treated patients, improvements in dyspnea and fatigue were statistically significant (P < 0.001), while the increase in appetite was only marginally significant (P = 0.071).

conclusionThese findings suggest that ASX supplementation may be effective in improving oxidative stress biomarkers and clinical status in patients with HF.

trial registrationIranian Registry of Clinical Trials IRCT20200429047235N3. Registered on 26 March 2024, prior to the enrollment of the first participant. http://irct.behdasht.gov.ir/trial/75913 .

Indexed as

AntioxidantsDietary SupplementsHeart FailureOxidative StressUric AcidAgedBiomarkersDouble-Blind MethodFemaleHumansMaleMiddle AgedTime FactorsTreatment OutcomeXanthophyllsAntioxidantsastaxanthineBiomarkersUric AcidXanthophyllsAstaxanthinDyspneaFatigueHeart FailureOxidative StressUric Acid

Identifiers

PMID41162864
PMCPMC12574148

What OpenQuestion holds

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Registered trials

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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.