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Study aim
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To assess the impact of astaxanthin supplementation on inflammatory markers, oxidative stress indices, lipid profile, uric acid level, blood pressure, endothelial function, quality of life, and disease symptoms in individuals with heart failure.
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Design
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A clinical trial with a control group, with parallel groups, double-blind, randomized, on 80 patients, will be used for randomization by permutation block method with a block size of 4.
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Settings and conduct
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Samples will be taken from heart failure patients referred to Shahid Chamran Hospital of Isfahan. Blinding of participants and intervention providers will be conducted.
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Participants/Inclusion and exclusion criteria
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The inclusion criteria: age 18 years and above, known heart failure in stage C, D, willing to participate in the study and complete the consent form before starting the intervention. The exclusion criteria: pregnancy and breastfeeding, consumption of alcoholic beverages, drug addiction, suffering from uncontrolled diabetes, use of herbal and medicinal supplements three months before starting the study, Warfarin drug use, following a special diet or exercise program, suffering from chronic liver, kidney and lung diseases, suffering from chronic inflammatory diseases such as Crohn's and ulcerative colitis, suffering from cancer, suffering from acute coronary heart syndrome or heart surgery in the last 4 weeks.
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Intervention groups
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The intervention group will receive a daily 20mg Astaxanthin capsule from "Life Technology of Life", while the control group will receive a daily 20mg Maltodextrin placebo capsule from Foodchem, with similar characteristics to the Astaxanthin supplement, for 60 days.
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Main outcome variables
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Inflammatory markers; oxidative stress indices; lipid profile; blood pressure; uric acid; endothelial function; quality of life; fatigue intensity; shortness of breath intensity; appetite level