A randomized phase III double-blind clinical trial (S1600) evaluating the effect of immune-enhancing nutrition on radical cystectomy outcomes.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. TPS529-TPS529
Author(s):  
Jill Hamilton-Reeves ◽  
Jeffrey M. Holzbeierlein ◽  
Joseph M. Unger ◽  
Danika L Lew ◽  
Michael Jordan Fisch ◽  
...  

TPS529 Background: This phase III trial will compare the impact of consuming Specialized IMmunonutrition (SIM) to oral nutritional support on postoperative complications after radical cystectomy. Specialized IMmunonutrition is fortified with nutrients (L-arginine, omega-3 fatty acids, dietary nucleotides, and vitamin A) that have immediate effects on immune and inflammatory responses, muscle sparing, and wound healing after surgery. Methods: Two hundred patients will be randomized in a 1:1 fashion to one of two arms. Subjects will be stratified by diversion type (neobladder vs. ileal conduit) and whether the patient had neoadjuvant chemotherapy (any vs. none) to balance the intervention assignment according to important prognostic factors. Nutrition drinks are given three times a day for 5 days before and 5 days after surgery. The primary endpoint is 30 day overall complication rate. Two hundred patients gives 80% power to detect an absolute reduction of 23% in the 30 day overall complication rate (from 65% down to 42%). Secondary endpoints will assess infections, muscle mass, readmissions, quality of life, recurrence, DFS, OS, immune response, cytokines, amino acids, and fatty acids. The trial is testing a high yield, low-risk, low-cost strategy to improve the outcome of patients with bladder cancer who undergo cystectomy. Funding: NIH/NCI/DCP grant award UG1CA189974. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Author(s):  
Timothy D. Mickleborough

Increased muscle oxidative stress and inflammatory responses among athletes have been reported consistently. In addition, it is well known that exhaustive or unaccustomed exercise can lead to muscle fatigue, delayed-onset muscle soreness, and a decrement in performance. Omega-3 polyunsaturated fatty acids (PUFAs) have been shown to decrease the production of inflammatory eicosanoids, cytokines, and reactive oxygen species; have immunomodulatory effects; and attenuate inflammatory diseases. While a number of studies have assessed the efficacy of omega-3 PUFA supplementation on red blood cell deformability, muscle damage, inflammation, and metabolism during exercise, only a few have evaluated the impact of omega-3 PUFA supplementation on exercise performance. It has been suggested that the ingestion of EPA and DHA of approximately 1–2 g/d, at a ratio of EPA to DHA of 2:1, may be beneficial in counteracting exercise-induced inflammation and for the overall athlete health. However, the human data are inconclusive as to whether omega-3 PUFA supplementation at this dosage is effective in attenuating the inflammatory and immunomodulatory response to exercise and improving exercise performance. Thus, attempts should be made to establish an optimal omega-3 fatty-acid dosage to maximize the risk-to-reward ratio of supplementation. It should be noted that high omega-3 PUFA consumption may lead to immunosuppression and prolong bleeding time. Future studies investigating the efficacy of omega-3 PUFA supplementation in exercise-trained individuals should consider using an exercise protocol of sufficient duration and intensity to produce a more robust oxidative and inflammatory response.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 895-895
Author(s):  
Lynne Bell ◽  
Georgina Dodd ◽  
Adrian Whyte ◽  
Barbara Shukitt-Hale ◽  
Claire Williams

Abstract Objectives A healthy diet is essential for optimal brain health. A number of food bioactives have been linked to cognitive benefits, including phytonutrients and essential fatty acids. Here we investigated the benefits of a walnut-rich breakfast, which contained flavonoids and omega-3s, to see whether consumption of these bioactives might lead to significant cognitive improvements throughout the day. Methods A double-blind, crossover intervention study compared the effects of a breakfast containing 50g walnuts, with a nut-free, macronutrient-matched control. Participants were 32 healthy, young adults aged 18 to 30. Cognition, mood, blood, and EEG measures were recorded at baseline and 2, 4, and 6 hours postprandially. Only the cognitive data are reported here. All cognitive data were analyzed using linear mixed modeling (LMM) with baseline performance included as a covariate. Bonferroni corrected pairwise comparisons were used to investigate significant treatment effects. Results Compared to the control breakfast, the walnuts elicited significantly faster reaction times throughout the day on tasks measuring inhibition and task switching aspects of executive function. Memory recall results were mixed; slightly worse performance was observed at 2 hours following the walnut breakfast, but this was later reversed with walnuts outperforming control at 6 hours. Conclusions The findings provide evidence for reaction time benefits following a walnut-rich breakfast, with effects lasting throughout the day. The results concur with previous literature that suggests executive function effects are commonly observed in young adults following flavonoid supplementation. The memory recall effect at the final time point is consistent with previously observed benefits for both omega-3 fatty acids and flavonoids and may indicate that walnuts offer neuroprotection following long periods of cognitive demand, or that memory benefits depend upon the slower absorption of omega-3s or the delayed appearance of flavonoid metabolites. Walnuts are therefore beneficial to cognitive function in young adults after only a single, acute intake, but further investigation of precise mechanisms is needed. Funding Sources The study was funded by the California Walnut Commission, USA and pre-registered at clinicaltrials.gov.


Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 205
Author(s):  
William Yakah ◽  
David Ramiro-Cortijo ◽  
Pratibha Singh ◽  
Joanne Brown ◽  
Barbara Stoll ◽  
...  

Multicomponent lipid emulsions are available for critical care of preterm infants. We sought to determine the impact of different lipid emulsions on early priming of the host and its response to an acute stimulus. Pigs delivered 7d preterm (n = 59) were randomized to receive different lipid emulsions for 11 days: 100% soybean oil (SO), mixed oil emulsion (SO, medium chain olive oil and fish oil) including 15% fish oil (MO15), or 100% fish oil (FO100). On day 11, pigs received an 8-h continuous intravenous infusion of either lipopolysaccharide (LPS—lyophilized Escherichia coli) or saline. Plasma was collected for fatty acid, oxylipin, metabolomic, and cytokine analyses. At day 11, plasma omega-3 fatty acid levels in the FO100 groups showed the highest increase in eicosapentaenoic acid, EPA (0.1 ± 0.0 to 9.7 ± 1.9, p < 0.001), docosahexaenoic acid, DHA (day 0 = 2.5 ± 0.7 to 13.6 ± 2.9, p < 0.001), EPA and DHA-derived oxylipins, and sphingomyelin metabolites. In the SO group, levels of cytokine IL1β increased at the first hour of LPS infusion (296.6 ± 308 pg/mL) but was undetectable in MO15, FO100, or in the animals receiving saline instead of LPS. Pigs in the SO group showed a significant increase in arachidonic acid (AA)-derived prostaglandins and thromboxanes in the first hour (p < 0.05). No significant changes in oxylipins were observed with either fish-oil containing group during LPS infusion. Host priming with soybean oil in the early postnatal period preserves a higher AA:DHA ratio and the ability to acutely respond to an external stimulus. In contrast, fish-oil containing lipid emulsions increase DHA, exacerbate a deficit in AA, and limit the initial LPS-induced inflammatory responses in preterm pigs.


Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1111
Author(s):  
Maria P. Mollica ◽  
Giovanna Trinchese ◽  
Fabiano Cimmino ◽  
Eduardo Penna ◽  
Gina Cavaliere ◽  
...  

Milk contains several important nutrients that are beneficial for human health. This review considers the nutritional qualities of essential fatty acids (FAs), especially omega-3 (ω-3) and omega-6 (ω-6) polyunsaturated fatty acids (PUFAs) present in milk from ruminant and non-ruminant species. In particular, the impact of milk fatty acids on metabolism is discussed, including its effects on the central nervous system. In addition, we presented data indicating how animal feeding—the main way to modify milk fat composition—may have a potential impact on human health, and how rearing and feeding systems strongly affect milk quality within the same animal species. Finally, we have presented the results of in vivo studies aimed at supporting the beneficial effects of milk FA intake in animal models, and the factors limiting their transferability to humans were discussed.


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Alexandra Schättin ◽  
Corinne Baier ◽  
Domenique Mai ◽  
Verena Klamroth-Marganska ◽  
Isabelle Herter-Aeberli ◽  
...  

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