Sialylated galacto-oligosaccharides and 2-fucosyllactose reduce necrotising enterocolitis in neonatal rats

被引:88
作者
Autran, Chloe A. [1 ,2 ]
Schoterman, Margriet H. C. [3 ]
Jantscher-Krenn, Evelyn [1 ,2 ]
Kamerling, Johannis P. [4 ]
Bode, Lars [1 ,2 ]
机构
[1] Univ Calif San Diego, Dept Pediat, Div Neonatol, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Dept Pediat, Div Gastroenterol Hepatol & Nutr, La Jolla, CA 92093 USA
[3] FrieslandCampina, NL-3818 LE Amersfoort, Netherlands
[4] Univ Groningen, Groningen Biomol Sci & Biotechnol Inst, Microbial Physiol, NL-9747 AG Groningen, Netherlands
关键词
Human milk oligosaccharides; Galacto-oligosaccharides; 2-Fucosyllactose; Necrotising enterocolitis; Premature infants; Infant formula; CRUZI-TRANS-SIALIDASE; HUMAN-MILK; INFANTS; FORMULA; GROWTH;
D O I
10.1017/S0007114516002038
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
Necrotising enterocolitis (NEC) is one of the most frequent and fatal intestinal disorders in preterm infants and has very limited treatment options. Breast-fed infants are at a 6-10-fold lower NEC risk than formula-fed infants, and we have previously shown that human milk oligosaccharides (HMO) improved survival and reduced pathology in a rat NEC model. The HMO disialyllacto-N-tetraose (DSLNT) was most effective, and sialylation was shown to be essential for its protective effect. Galacto-oligosaccharides (GOS), currently added to some infant formula, but not containing sialic acid, had no effect. In addition to DSLNT, our previous work also showed that the neutral HMO fraction, which contains high concentrations of 2-fucosyllactose (2FL), slightly improved pathology scores. Here, we assessed the in vivo efficacy of 2FL, as well as of GOS that we enzymatically sialylated (Sia-GOS). Neonatal rats were randomised into the following study groups - dam-fed (DF), formula-fed (FF), FF containing pooled HMO (10 mg/ml), GOS (8 mg/ml), Sia-GOS (500 mu m) or 2FL (2 mg/ml) - and subjected to the established NEC protocol. The DF and HMO groups had the lowest pathology scores with mean values of 067 (sd 034) and 090 (sd 047), respectively. The FF group had significantly elevated pathology scores of 202 (sd 063). Although the addition of GOS to the formula had no protective effect and generated scores of 200 (sd 063), the addition of Sia-GOS or 2FL significantly lowered pathology scores to 132 (sd 056) (P<00034) and 143 (sd 051) (P<00040), respectively. The results warrant further studies to investigate the underlying mechanisms and to assess safety and efficacy in human neonates.
引用
收藏
页码:294 / 299
页数:6
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