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Antunes MS, Waitzberg DL, Tesser A, Gutierres FA, Tamanaha EM, Oliveira R, Sampaio G, Torres EA, Garla PC, Calder PC, Torrinhas RS. Infusion time for fish oil-containing parenteral emulsions in surgery: A study on ω-3 fatty acid dynamics in rats. Nutrition 2020; 83:111066. [PMID: 33360792 DOI: 10.1016/j.nut.2020.111066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The aim of this study was to contribute to the design of specialized parenteral nutrition protocols in surgery by evaluating the dynamics of polyunsaturated fatty acid (PUFA) concentrations in different body pools after the infusion of fish oil-containing lipid emulsion (FOLE) in rats that had undergone surgical central venous catheterization (CVC). METHODS After 5-d adaptation in metabolic cages, 78 male Lewis rats (300-450 g) fed a standard diet were sacrificed (baseline control) or had only CVC (surgical control) or also received a 72-h infusion of a parenteral lipid emulsion with or without fish oil. The catheterized animals were sacrificed 0 (T0), 2 (T2), 6 (T6), and 12 h (T12) after the infusion ended. Gas chromatography was used to determine the concentrations of eicosapentaenoic (EPA), docosahexaenoic (DHA), and arachidonic (ARA) acids and the ω-3 to ω-6 ratio in plasma, liver, and blood leukocytes. Kruskal-Wallis and Wilcoxon tests were applied to plasma and liver data and descriptive analysis to leukocyte data. RESULTS Plasma, liver, and leukocytes exhibited almost undetectable EPA and DHA and detectable ARA concentrations at baseline. Immediately after FOLE infusion (T0), these PUFAs changed in all pools, resulting in a higher ratio of ω-3 to ω-6 compared with rats with no FOLE infusion (P < 0.05). All these changes decreased over time, with residual effects remaining until T6 in plasma, T12 in liver, and only until T2 in leukocytes. CONCLUSION Data from this study suggest that ω-3 PUFAs are cleared early after the end of FOLE infusion, mainly in leukocytes. This should be considered when FOLEs are applied for immunomodulatory purposes in surgery.
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Affiliation(s)
- Marcia S Antunes
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Dan L Waitzberg
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35.
| | - Alweyd Tesser
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Felipe A Gutierres
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Erika M Tamanaha
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Ronaldo Oliveira
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Geni Sampaio
- Laboratory of Bromatology, Department of Nutrition, Faculty of Public Health, University of São Paulo, São Paulo, Brazil
| | - Elizabeth A Torres
- Laboratory of Bromatology, Department of Nutrition, Faculty of Public Health, University of São Paulo, São Paulo, Brazil
| | - Priscilla C Garla
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
| | - Phillip C Calder
- Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Raquel S Torrinhas
- Laboratory of Nutrition and Metabolic Surgery, Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil, LIM 35
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