scholarly journals Impact of Parenteral Lipid Emulsion Components on Cholestatic Liver Disease in Neonates

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 508
Author(s):  
Gregory Guthrie ◽  
Douglas Burrin

Total parenteral nutrition (TPN) is a life-saving intervention for infants that are unable to feed by mouth. Infants that remain on TPN for extended periods of time are at risk for the development of liver injury in the form of parenteral nutrition associated cholestasis (PNAC). Current research suggests the lipid component of TPN is a factor in the development of PNAC. Most notably, the fatty acid composition, vitamin E concentration, and presence of phytosterols are believed key mediators of lipid emulsion driven PNAC development. New emulsions comprised of fish oil and medium chain triglycerides show promise for reducing the incidence of PNAC in infants. In this review we will cover the current clinical studies on the benefit of fish oil and medium chain triglyceride containing lipid emulsions on the development of PNAC, the current constituents of lipid emulsions that may modulate the prevalence of PNAC, and potential new supplements to TPN to further reduce the incidence of PNAC.

2019 ◽  
Vol 109 (4) ◽  
pp. 1038-1050 ◽  
Author(s):  
Meredith A Baker ◽  
Bennet S Cho ◽  
Lorenzo Anez-Bustillos ◽  
Duy T Dao ◽  
Amy Pan ◽  
...  

ABSTRACT Background Fish oil (FO) intravenous lipid emulsions (ILEs) are used as a monotherapy to treat parenteral nutrition (PN)-associated liver disease and provide essential fatty acids (EFAs) needed to sustain growth and prevent EFA deficiency (EFAD). Studies have suggested that medium-chain triglycerides (MCTs) and α-tocopherol have anti-inflammatory properties. Objective The purpose of this study was to test whether FO-ILEs containing MCTs and/or additional α-tocopherol decrease the inflammatory response to an endotoxin challenge compared with FO-ILE alone and preserve the ability to prevent PN-induced liver injury in mice. Methods A murine model of PN-induced hepatosteatosis was used to compare the effects of ILEs formulated in the laboratory containing varying ratios of FO and MCTs, and subsequently FO- and 50:50 FO:MCT-ILE plus 500 mg/L α-tocopherol (FO + AT and 50:50 + AT, respectively). C57BL/6 mice receiving unpurified diet (UPD), PN-equivalent diet (PN) + saline, and PN + soybean oil (SO)-ILE served as controls. After 19 d, mice received an intraperitoneal saline or endotoxin challenge 4 h before being killed. Serum and livers were harvested for histologic analysis, fatty acid profiling, and measurement of systemic inflammatory markers (tumor necrosis factor-α, interleukin-6). Results All ILEs were well tolerated and prevented biochemical EFAD. Livers of mice that received saline and SO developed steatosis. Mice that received 30:70 FO:MCT developed mild hepatosteatosis. All other FO-containing ILEs preserved normal hepatic architecture. Mice that received FO- or SO-ILE had significantly elevated systemic inflammatory markers after endotoxin challenge compared with UPD-fed controls, whereas 50:50 FO:MCT, 30:70 FO:MCT, FO + AT, and 50:50 + AT groups had significantly lower inflammatory markers similar to those seen in UPD-fed controls. Conclusions Mixed FO/MCT and the addition of α-tocopherol to FO improved the inflammatory response to endotoxin challenge compared with FO-ILE alone while still preventing PN-induced liver injury and EFAD in mice. There was no synergistic relation between α-tocopherol and MCTs.


2019 ◽  
Author(s):  
YI-LING WANG ◽  
Lih-Ju Chen ◽  
Lon-Yen Tsao ◽  
Hsiao-Neng Chen ◽  
Cheng-Han Lee ◽  
...  

Abstract Background Preterm infants received long-term parenteral nutrition (PN) due to gastrointestinal immaturity. Mixed lipid emulsions composed of soybean oil, medium chain triglycerides (MCTs), olive oil, and fish oil, which have a relatively low ω-6: ω-3 ratio, may decrease the incidence of PN-associated cholestasis by reducing oxidative stress and providing an anti-inflammatory effect.Methods The retrospective cohort study enrolled a total 399 very low birth weight (VLBW) premature infants between January 2009 and November 2017 at a single neonatal intensive care unit. Preterm infants received total parenteral nutrition with either mixed lipid emulsion (SMOFlipid, n = 195) or soybean oil-based lipid emulsion (Lipovenoes, n = 204) for at least seven days. We compared the outcomes of PN-associated cholestasis, co-morbidities and mortality.Results The incidence of PN-associated cholestasis was significantly lower in the SMOFlipid group than the Lipovenoes group (10.3% vs 20.1%, P = 0.006). The related clinical laboratory findings, including levels of γ- GT (P = 0.019), triglyceride (P < 0.001), and cholesterol (P = 0.023), were significantly lower in the SMOFlipid group. The duration to full feeding days shortened in the SMOFlipid group compared with the Lipovenoes group (25 ± 10.33 vs 33 ± 16.22, P < 0.001). Relevant complications, such as severe retinopathy of prematurity (ROP, 3.6% vs 14.3%, P < 0.001) and bronchopulmonary dysplasia (BPD, 36.9% vs 46.7%, P = 0.046) were also reduced in the SMOFlipid group versus the Lipovenoes group, but there was no significant effect on severe intraventricular hemorrhage (IVH), necrotizing enterocolitis (NEC), or mortality in both groups.Conclusions In very premature infants, PN with fish oil-based lipid emulsions is associated with a lower incidence of PN-associated cholestasis compared with soybean oil-based lipid emulsions.


2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110118
Author(s):  
Yi-Ling Wang ◽  
Lih-Ju Chen ◽  
Lon-Yen Tsao ◽  
Hsiao-Neng Chen ◽  
Cheng-Han Lee ◽  
...  

Objective Preterm infants receive long-term parenteral nutrition (PN) for gastrointestinal immaturity. This study aimed to determine if mixed lipid emulsions containing fish oil decrease the incidence of PN-associated cholestasis by reducing oxidative stress and providing an anti-inflammatory effect. Methods This retrospective cohort study enrolled 399 very low birth weight premature infants (gestational age ≤32 weeks) between January 2009 and November 2017 at a single neonatal intensive care unit. Preterm infants received total PN with either mixed lipid emulsion including fish oil (SMOFlipid®, n = 195) or soybean oil-based lipid emulsion (Lipovenoes®, n = 204) for at least 7 days. We compared the outcomes of PN-associated cholestasis, comorbidities, and mortality between the groups. Results The incidence of PN-associated cholestasis was significantly lower in the SMOFlipid group than in the Lipovenoes group. The duration to full feeding days was significantly shorter in the SMOFlipid group compared with the Lipovenoes group. Relevant complications, such as severe retinopathy of prematurity and bronchopulmonary dysplasia, were also significantly reduced in the SMOFlipid group compared with the Lipovenoes group. Conclusion In premature infants, PN with fish oil-based lipid emulsions is associated with a lower incidence of PN-associated cholestasis compared with soybean oil-based lipid emulsions.


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