Journal
MOLECULAR NUTRITION & FOOD RESEARCH
Volume 65, Issue 5, Pages -Publisher
WILEY
DOI: 10.1002/mnfr.201901270
Keywords
total parenteral nutrition; lipid emulsion; intestinal failure-associated liver disease; n-3 fatty acids; gut microbiome; metabolism; incretins
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Funding
- grant SINERGIA from Swiss National Science Foundation, Berne, Switzerland [177225]
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Total parenteral nutrition (TPN) is a life-saving therapy, but is associated with adverse effects like liver injury, infection risk, and metabolic derangements. This review discusses the underlying causes and mechanisms of these adverse effects, proposing novel approaches for the design of next generation lipid delivery systems.
Total parenteral nutrition (TPN) is a life-saving therapy administered to millions of patients. However, it is associated with significant adverse effects, namely liver injury, risk of infections, and metabolic derangements. In this review, the underlying causes of TPN-associated adverse effects, specifically gut atrophy, dysbiosis of the intestinal microbiome, leakage of the epithelial barrier with bacterial invasion, and inflammation are first described. The role of the bile acid receptors farnesoid X receptor and Takeda G protein-coupled receptor, of pleiotropic hormones, and growth factors is highlighted, and the mechanisms of insulin resistance, namely the lack of insulinotropic and insulinomimetic signaling of gut-originating incretins as well as the potentially toxicity of phytosterols and pro-inflammatory fatty acids mainly released from soybean oil-based lipid emulsions, are discussed. Finally, novel approaches in the design of next generation lipid delivery systems are proposed. Propositions include modifying the physicochemical properties of lipid emulsions, the use of lipid emulsions generated from sustainable oils with favorable ratios of anti-inflammatory n-3 to pro-inflammatory n-6 fatty acids, beneficial adjuncts to TPN, and concomitant pharmacotherapies to mitigate TPN-associated adverse effects.
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