Abstract
N-3 polyunsaturated fatty acids (PUFAs) include alpha-linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), among others. Alpha-linolenic acid is found in flaxseed oil. EPA and DHA are found in blueback fish oil. It has been suggested that n-3 PUFAs have nutritional benefits including suppression of inflammation and decreased total mortality. Therefore, we pose the question: are n-3 PUFAs effective in the treatment of critical care patients?
The following beneficial effects of n-3 PUFAs in critical care have been suggested: reduced postoperative atrial fibrillation (AF), protection against ischemia-reperfusion injury, prevention of some cancers, and decreased risk of developing sepsis. The underlying mechanisms might relate to the effect of n-3 PUFAs on immune system regulation.
The importance of n-3 PUFAs has been suggested by guidelines issued by the European Society for Clinical Nutrition and Metabolism (ESPEN). For example, diets containing n-3 PUFAs, often described as “immunonutrition,” aim at enhancing the immune function in surgical patients. However, there is limited evidence describing the criteria for the use of n-3 PUFAs in critical care; therefore, additional research is needed.
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Abbreviations
- AA:
-
Arachidonic acid
- AF:
-
Atrial fibrillation
- CABG:
-
Coronary artery bypass grafting
- CVD:
-
Cardiovascular disease
- DHA:
-
Docosahexaenoic acid
- EPA:
-
Eicosapentaenoic acid
- ESPEN:
-
European Society for Clinical Nutrition and Metabolism
- ICU:
-
Intensive care unit
- IPC:
-
Ischemic preconditioning
- LT:
-
Leukotriene
- PEG:
-
Percutaneous endoscopic gastrostomy
- PG:
-
Prostaglandin
- PN:
-
Parenteral nutrition
- PPAR:
-
Peroxisome proliferator-activated receptor
- PUFA:
-
Polyunsaturated fatty acid
- QOL:
-
Quality of life
- RBC:
-
Red blood cell
- SREBP:
-
Sterol regulatory element-binding protein
- TG:
-
Triacylglycerol
- TX:
-
Thromboxane
- UCP:
-
Uncoupling protein
- WBC:
-
White blood cell
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Watanabe, N. (2015). Importance of n-3 Polyunsaturated Fatty Acids in Critical Care. In: Rajendram, R., Preedy, V.R., Patel, V.B. (eds) Diet and Nutrition in Critical Care. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7836-2_118
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DOI: https://doi.org/10.1007/978-1-4614-7836-2_118
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