Effects of Supplementation with Neptune Krill Oil (Euphasia Superba) on Selected Redox Parameters and Pro- Inflammatory Markers in Athletes during Exhaustive Exercise

Skarpańska-Stejnborn, Anna; Basta, Piotr; Foriasz, Justyna; Arlet, J

doi:10.1515/hukin-2015-0056

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…There has been one study investigating the effects of krill oil supplementation on markers of oxidative stress and inflammation which, contrary to the current findings, demonstrated that in the recovery period after a bout of exercise, TBARS levels were lower in the krill oil group, compared to placebo [ 34 ]. No differences in tumor-necrosis factor-alpha (TNF-α) or the activity of superoxide dismutase, glutathione peroxidase and creatine kinase were observed between groups.…”

Section: Discussioncontrasting

confidence: 73%

The Effect of Krill Oil Supplementation on Exercise Performance and Markers of Immune Function

et al. 2015

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BackgroundKrill oil is a rich source of the long-chain n-3 polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which may alter immune function after exercise. The aim of the study was to determine the effects of krill oil supplementation on post exercise immune function and performance.MethodsNineteen males and 18 females (age: 25.8 ± 5.3 years; mean ± S.D.) were randomly assigned to 2 g/day of krill oil (n = 18) or placebo (n = 19) supplementation for 6 weeks. A maximal incremental exercise test and cycling time trial (time to complete set amount of work) were performed pre-supplementation with the time trial repeated post-supplementation. Blood samples collected pre- and post- supplementation at rest, and immediately, 1 and 3h post-exercise. Plasma IL-6 and thiobarbituric acid reactive substances (TBARS) concentrations and, erythrocyte fatty acid composition were measured. Natural killer (NK) cell cytotoxic activity and peripheral blood mononuclear cell (PBMC) IL-2, IL-4, IL-10, IL-17 and IFNγ production were also measured.ResultsNo effects of gender were noted for any variable. PBMC IL-2 and NK cell cytotoxic activity were greater (P < 0.05) 3h post exercise in the krill oil compared to the control group. Plasma IL-6 and TBARS, PBMC IL-4, IL-10, IL-17 and IFNγ production, along with performance and physiological measures during exercise, were not different between groups.ConclusionSix weeks of krill oil supplementation can increase PBMC IL-2 production and NK cell cytotoxic activity 3h post-exercise in both healthy young males and females. Krill oil does not modify exercise performance.

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Section: Discussioncontrasting

confidence: 73%

The Effect of Krill Oil Supplementation on Exercise Performance and Markers of Immune Function

et al. 2015

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“…Nutritional interventions can therefore be of interest to reduce oxidative stress, decrease muscle soreness and improve sports performance. So far it has been shown that 1 g/d of krill oil supplementation for six weeks reduced oxidative stress in professional rowers submitted to exhaustive exercise [52]. In a study with coronary heart disease patients that received 2 g/d krill oil for three months, it was proposed that antioxidant capacities were increased via the Kelch-like ECH-associated protein 1-NF-E2-related factor 2 (KEAP1-NRF2) signaling pathway [53].…”

Section: Introductionmentioning

confidence: 99%

Krill-Oil-Dependent Increases in HS-Omega-3 Index, Plasma Choline and Antioxidant Capacity in Well-Conditioned Power Training Athletes

et al. 2021

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There is evidence that both omega-3 polyunsaturated fatty acids (n-3 PUFAs) and choline can influence sports performance, but information establishing their combined effects when given in the form of krill oil during power training protocols is missing. The purpose of this study was therefore to characterize n-3 PUFA and choline profiles after a one-hour period of high-intensity physical workout after 12 weeks of supplementation. Thirty-five healthy power training athletes received either 2.5 g/day of Neptune krill oilTM (550 mg EPA/DHA and 150 mg choline) or olive oil (placebo) in a randomized double-blind design. After 12 weeks, only the krill oil group showed a significant HS-Omega-3 Index increase from 4.82 to 6.77% and a reduction in the ARA/EPA ratio (from 50.72 to 13.61%) (p < 0.001). The krill oil group showed significantly higher recovery of choline concentrations relative to the placebo group from the end of the first to the beginning of the second exercise test (p = 0.04) and an 8% decrease in total antioxidant capacity post-exercise versus 21% in the placebo group (p = 0.35). In conclusion, krill oil can be used as a nutritional strategy for increasing the HS-Omega-3 Index, recover choline concentrations and address oxidative stress after intense power trainings.

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“…Given that prolonged periods of high-intensity long-duration exercise may also negatively impact immune function and inflammation, there is considerable interest in marine-based n-3 PUFA supplementation as a means to improve athletic recovery ( 8 ). To this end, studies that have investigated the benefits of krill oil in sports settings to date have focused on post-exercise immune function ( 9 ), post-exercise oxidative stress ( 10 ), and mTOR signaling ( 11 ). However, while krill oil is an acknowledged dietary supplement to provide n-3 PUFAs, no sports nutrition studies have looked at the lesser known aspect of krill oil being a rich source of the essential nutrient choline.…”

Section: Introductionmentioning

confidence: 99%

Effects of Krill Oil and Race Distance on Serum Choline and Choline Metabolites in Triathletes: A Field Study

et al. 2020

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Effects of Supplementation with Neptune Krill Oil (Euphasia Superba) on Selected Redox Parameters and Pro- Inflammatory Markers in Athletes during Exhaustive Exercise

Cited by 8 publications

References 23 publications

The Effect of Krill Oil Supplementation on Exercise Performance and Markers of Immune Function

The Effect of Krill Oil Supplementation on Exercise Performance and Markers of Immune Function

Krill-Oil-Dependent Increases in HS-Omega-3 Index, Plasma Choline and Antioxidant Capacity in Well-Conditioned Power Training Athletes

Effects of Krill Oil and Race Distance on Serum Choline and Choline Metabolites in Triathletes: A Field Study

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