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Intestinal bacterial colonisation in pre-term infants is delayed compared with full-term infants, leading to an increased risk of gastrointestinal disease. Modulation of colonisation through dietary supplementation with probiotics or prebiotics could decrease such a risk. The present study evaluated clinical tolerance, the effects on gut microbiota, and inflammatory and immunological mucosal responses to an infant formula adapted for pre-term infants that included in its manufacturing process a fermentation step with two probiotic strains, Bifidobacterium breve C50 and Streptococcus thermophilus 065, inactivated by heat at the end of the process. A total of fifty-eight infants (gestational age: 30–35 weeks), fed either the fermented pre-term formula or a standard pre-term formula, were followed up during their hospital stay. Clinical tolerance, faecal microbiota using a culture and a culture-independent method (temporal temperature gel electrophoresis), faecal calprotectin and secretory IgA were analysed weekly. No difference was observed regarding anthropometric data and digestive tolerance, except for abdominal distension, the incidence of which was lower in infants fed the fermented formula for 2 weeks. Bacterial colonisation was not modified by the type of feeding, particularly for bifidobacteria. Faecal calprotectin was significantly lower in infants fed the fermented formula for 2 weeks, and secretory IgA increased with both mother's milk and the fermented formula. The fermented formula was well tolerated and did not significantly modulate the bacterial colonisation but had benefits on inflammatory and immune markers, which might be related to some features of gastrointestinal tolerance.

Prenatal growth restraint, if followed by postnatal overweight, confers risk for adult disease including diabetes. The mechanisms whereby neonatal nutrition may modulate such risk are poorly understood. We studied the effects of nutrition (breast-feeding [BRF] vs. formula-feeding [FOF]) on weight partitioning and endocrine state (as judged by high-molecular-weight [HMW] adiponectin and IGF-I) of infants born small for gestational age (SGA). Body composition (by absorptiometry), HMW adiponectin, and IGF-I were assessed at birth and 4 months in BRF infants born appropriate for gestational age (AGA; n = 72) and SGA infants receiving BRF (n = 46) or FOF (n = 56), the latter being randomized to receive a standard (FOF1) or protein-rich formula (FOF2). Compared with AGA-BRF infants, the catchup growth of SGA infants was confined to lean mass, independently of nutrition. Compared with AGA-BRF infants, SGA-BRF infants had normal HMW adiponectin and IGF-I levels at 4 months, whereas SGA-FOF infants had elevated levels of HMW adiponectin (particularly SGA-FOF1) and IGF-I (particularly SGA-FOF2). In conclusion, neonatal nutrition seems to influence endocrinology more readily than body composition of SGA infants. Follow-up will disclose whether the endocrine abnormalities in SGA-FOF infants can serve as early markers of an unfavorable metabolic course and whether they may contribute to design early interventions that prevent subsequent disease, including diabetes.

Background/Objectives: To determine the impact of a not hydrolyzed fermented infant formula containing heat-killed Bifidobacterium breve C50 and Streptococcus thermophilus 065 (HKBBST) on the incidence of allergy-like events during the first 2 years of life in children at high risk of atopy. Subjects/Methods: This multicenter, randomized, double-blind, controlled study included infants at high risk of atopy. Infants used HKBBST or a standard infant formula (SIF) since birth until 1 year of age, and were followed at 4, 12 and 24 months after birth. Skin prick tests (SPTs) for six foods and six aeroallergens were systematically performed and adverse events (AEs) were recorded. In case of potentially allergic AE (PAAE), allergy could be further tested by SPT, patch tests and quantification of specific IgEs. If cow's milk allergy (CMA) was suspected, an oral challenge could also be performed. Results: The study included 129 children, 63 were randomized to SIF, 66 to HKBBST. The use of HKBBST milk did not alter the proportion of CMA but decreased the proportion of positive SPT to cow's milk (1.7 vs 12.5%, P=0.03), and the incidence of digestive (39 vs 63%, P=0.01) and respiratory potentially allergic AEs (7 vs 21%, P=0.03) at 12 months, and that of respiratory PAAEs at 24 months (13 vs 35%, P=0.01). Conclusions: HKBBST decreased the incidence of PAAEs in children with family history of atopy, during the first months of life and after the formula was stopped. Oral tolerance to cow's milk in infants at high risk of atopy may therefore be improved using not hydrolyzed fermented formulae.

Background Human milk provides necessary macronutrients (protein, carbohydrate, fat) required for infant nutrition. Lactoferrin (Lf), a multifunctional iron-binding protein predominant in human milk, shares similar protein sequence, structure, and bioactivity with bovine Lf (bLf). This large-scale pediatric nutrition study was designed to evaluate growth and tolerance in healthy infants who received study formulas with bLf at concentrations within the range of mature human milk. Methods In this multi-center, double-blind, parallel-designed, gender-stratified prospective study 480 infants were randomized to receive a marketed routine cow’s milk-based infant formula (Control; n  = 155) or one of two investigational formulas with bLf at 0.6 g/L (LF-0.6; n  = 165) or 1.0 g/L (LF-1.0; n  = 160) from 14–365 days of age. Investigational formulas also had a prebiotic blend of polydextrose (PDX) and galactooligosaccharides (GOS) and adjusted arachidonic acid (ARA). The primary outcome was weight growth rate from 14–120 days of age. Anthropometric measurements were taken at 14, 30, 60, 90, 120, 180, 275, and 365 days of age. Parental recall of formula intake, tolerance, and stool characteristics was collected at each time point. Medically-confirmed adverse events were collected throughout the study period. Results There were no group differences in growth rate (g/day) from 14–120 days of age; 353 infants completed the study through 365 days of age (Control: 110; LF-0.6: 127; LF-1.0: 116). Few differences in growth, formula intake, and infant fussiness or gassiness were observed through 365 day of age. Group discontinuation rates and the overall group incidence of medically-confirmed adverse events were not significantly different. From 30 through 180 days of age, group differences in stool consistency ( P  < 0.005) were detected with softer stools for infants in the LF-0.6 and LF-1.0 groups versus Control. Conclusion Compared to the Control, infants who received investigational formulas with bLf and the prebiotic blend of PDX and GOS experienced a softer stooling pattern similar to that reported in breastfed infants. This study demonstrated routine infant formulas with bLf, a blend of PDX and GOS, and adjusted ARA were safe, well-tolerated, and associated with normal growth when fed to healthy term infants through 365 days of age. Trial registration ClinicalTrials.gov NCT01122654 . Registered 10 May 2010.

Aims/hypothesis The Trial to Reduce IDDM in the Genetically at Risk (TRIGR) study was designed to establish whether weaning to a highly hydrolysed formula in infancy subsequently reduces the risk of type 1 diabetes. Methods The study population comprises newborn infants who have first-degree relatives with type 1 diabetes and meet the increased risk HLA inclusion, but not exclusion criteria. The study is being performed in 15 countries in three continents. First-degree relatives of patients with type 1 diabetes were identified from diabetes clinics, diabetes registries, and from other endocrinology or obstetrics offices and websites. HLA typing was performed at birth from cord or heel stick blood, and the results sent to the study's Data Management Unit within 2 weeks for communication of eligibility to the clinical study centre. All mothers recruited were encouraged to breastfeed. The intervention lasted for 6 to 8 months, and weaning formulas based on hydrolysed casein and standard cow's milk were compared. Results TRIGR recruited 5,606 infants, of whom 2,160 were enrolled as eligible participants, 6% more than the target of 2,032. Of those enrolled, 80% were exposed to the study formula. The overall retention rate over the first 5 years is 87%, with protocol compliance at 94%. The randomisation code will be opened when the last recruited child turns 10 years of age, i.e. in 2017. Conclusions/interpretation The TRIGR experience demonstrates the feasibility and successful implementation of an international dietary intervention study. TRIGR is the first ever primary prevention trial for type 1 diabetes and, if completed successfully, will provide a definite answer to the research question. Trial registration ClinicalTrials.gov NCT00179777 Funding The study was funded by the National Institute of Child Health and Development (NICHD) and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH) (grant numbers HD040364, HD042444 and HD051997), Canadian Institutes of Health Research, the Juvenile Diabetes Research Foundation International and the Commission of the European Communities (specific RTD programme ‘Quality of Life and Management of Living Resources', contract number QLK1-2002-00372 ‘Diabetes Prevention'. Other funding came from the EFSD/JDRF/Novo Nordisk Focused Research Grant, Academy of Finland, Dutch Diabetes Research Foundation and Finnish Diabetes Research Foundation).

Background/Objectives: Protein concentration is lower in human milk (HM) than in infant formula. The objective of this study was to evaluate the effect of an α-lactalbumin-enriched formula with a lower protein concentration on infant growth, protein markers and biochemistries. Subjects/Methods: Healthy term formula-fed (FF) infants 5–14 days old were randomized in this controlled, double-blind trial to standard formula (SF: 14.1 g/l protein, 662 kcal/l) group (n=112) or experimental formula (EF: 12.8 g/l protein, 662 kcal/l) group (n=112) for 120 days; a HM reference group (n=112) was included. Primary outcome was weight gain (g/day) from D0 to D120. Secondary outcomes included serum albumin, plasma amino acids insulin and incidence of study events. Anthropometric measures were expressed as Z-scores using 2006 World Health Organization growth standards. Results: A total of 321 of the 336 infants (96%) who enrolled, completed the study. Mean age was 9.6 (±2.9) days; 50% were girls. Mean weight gain (g/day) did not significantly differ between SF vs EF (P=0.67) nor between EF vs HM (P=0.11); however weight gain (g/day) was significantly greater in the SF vs HM group (P=0.04). At day 120, mean weight-for-age Z-score (WAZ) and weight-for-length Z-score (WLZ) did not significantly differ between SF vs EF nor EF vs HM; however the WAZ was significantly greater in SF vs HM (P=0.025). Secondary outcomes were within normal ranges for all groups. Incidence of study events did not differ among groups. Conclusions: α-Lactalbumin-enriched formula containing12.8 g/l protein was safe and supported age-appropriate growth; weight gain with EF was intermediate between SF and HM groups and resulted in growth similar to HM-fed infants in terms of weight gain, WAZ and WLZ.

Objective To describe feeding and gastrointestinal outcomes in growth-restricted infants <29 weeks’ gestation and to determine the rate of feed advancement which they tolerate. Design Analysis of prospectively collected data from a randomised feeding trial, the Abnormal Doppler Enteral Prescription Trial (ADEPT). Setting 54 neonatal units in the UK and Ireland. Participants 404 preterm, growth-restricted infants with abnormal antenatal Doppler studies from ADEPT. 83 infants <29 weeks and 312 infants ≥29 weeks’ gestation were included in this analysis. Interventions In ADEPT, infants were randomised to start milk ‘early’ on day 2 after birth, or ‘late’ on day 6. Subsequent feed advancement followed a regimen, which should have achieved full feeds by day 16 in the early and day 20 in the late group. Main outcome measures Full feeds were achieved later in infants <29 weeks; median age 28 days {IQR 22–40} compared with 19 days {IQR 17–23} in infants ≥29 weeks (HR 0.35, 95% CI 0.3 to 0.5). The incidence of necrotising enterocolitis was also higher in this group; 32/83 (39%) compared to 32/312 (10%) in those ≥29 weeks (RR 3.7, 95% CI 2.4 to 5.7). Infants <29 weeks tolerated very little milk for the first 10 days of life and reached full feeds 9 days later than predicted from the trial regimen. Conclusions Growth-restricted infants born <29 weeks’ gestation with abnormal antenatal Doppler failed to tolerate even the careful feeding regimen of ADEPT. A slower advancement of feeds may be required for these infants. Trial registration number ISRCTN87351483.

Background Beta-palmitate (sn-2 palmitate) mimics human milk fat, enabling easier digestion. Therefore, we hypothesized that infants consuming high beta-palmitate formula would have more frequent, softer stools and reduced crying compared to infants consuming low beta-palmitate formula. Methods Formula-fed infants were randomly assigned to receive either (1) formula with high beta-palmitate (HBP, n = 21) or (2) regular formula with a standard vegetable oil mix (LBP, n = 21). A matched group of breastfed infants served as a reference (BF, n = 21). Crying and stool characteristics data were recorded by the parents for 3 days before the 6- and 12-week visits. Results We found no significant differences in the stool frequency or consistency between the two formula groups. The percentage of crying infants in the LBP group was significantly higher than that in the HBP and BF groups during the evening at 6 weeks (88.2% vs. 56.3% and 55.6%, p < 0.05) and during the afternoon at 12 weeks (91.7% vs. 50.0% and 40%, p < 0.05). The infants fed HBP had significantly shorter crying durations when compared with infants fed LBP formula (14.90 ± 3.85 vs.63.96 ± 21.76 min/day, respectively; p = 0.047). Conclusions Our study indicates that consumption of a high beta-palmitate formula affects infant crying patterns during the first weeks of life. Comparable to breastfeeding, it reduced crying duration and frequency, primarily during the afternoon and evening hours, thereby improving the well-being of formula-fed infants and their parents. Trial registration NCT00874068 . Registration date March 31, 2009

Background To ensure the suitability of an infant formula as the sole source of nutrition or provide benefits similar to outcomes in breastfed infants, advancements in formula composition are warranted as more research detailing the nutrient composition of human milk becomes available. This study was designed to evaluate growth and tolerance in healthy infants who received one of two investigational cow’s milk-based formulas with adjustments in carbohydrate, fat, and calcium content and supplemented with a prebiotic blend of polydextrose (PDX) and galactooligosaccharides (GOS) or GOS alone. Methods In this multi-center, double-blind, parallel-designed, gender-stratified prospective study 419 infants were randomized and consumed either a marketed routine cow’s milk-based infant formula (Control; Enfamil® LIPIL®, Mead Johnson Nutrition, Evansville, IN) (n = 142) or one of two investigational formulas from 14 to 120 days of age. Investigational formulas were supplemented with 4 g/L (1:1 ratio) of a prebiotic blend of PDX and GOS (PDX/GOS; n = 139) or 4 g/L of GOS alone (GOS; n = 138). Anthropometric measurements were taken at 14, 30, 60, 90, and 120 days of age. Daily recall of formula intake, tolerance, and stool characteristics was collected during study weeks 1 and 2 and 24-h recall was collected at 60, 90, and 120 days of age. Medically-confirmed adverse events were recorded throughout the study. Results There were no group differences in growth rate from 14 to 120 days of age. Discontinuation rates were not significantly different among study groups. No differences in formula intake or infant fussiness or gassiness were observed. During study weeks 1 and 2 and at 60 days of age stool consistency ratings were higher (i.e. softer stools) for infants in the PDX/GOS and GOS groups versus Control and remained higher at 120 days for the PDX/GOS group (all P  < 0.05). The overall incidence of medically-confirmed adverse events was similar among groups. Conclusions Investigational routine infant formulas supplemented with 4 g/L of either a prebiotic blend of PDX and GOS or GOS alone were well-tolerated and supported normal growth. Compared to infants who received the unsupplemented control formula, infants who received prebiotic supplementation experienced a softer stooling pattern similar to that reported in breastfed infants. Trial registration ClinicalTrials.gov Identifier: NCT00712608

Cow's milk allergy (CMA) is treated in formula-fed infants with an extensive protein hydrolysate. This study aimed to evaluate the nutritional safety of a non-thickened and thickened extensively casein hydrolyzed protein formula (NT- and T-eCHF) in infants with CMA. Infants younger than 6 mo old with a positive cow milk challenge test, positive IgE, or skin prick test for cow milk were selected. Weight and length were followed during the 6 mo intervention with the NT-eCHF and T-eCHF. A challenge was performed in 50/71 infants with suspected CMA and was positive in 34/50. All children with confirmed CMA tolerated the eCHF. The T-eCHF leads to a significant improvement of the stool consistency in the whole population and in the subpopulation of infants with proven CMA. Height and weight evolution was satisfactory throughout the 6 mo study. The eCHF fulfills the criteria of a hypoallergenic formula and the NT- and T-eCHF reduced CMA symptoms. Growth was within normal range. •The evolution of anthropometric parameters with extensive hydrolysate is excellent.•This extensive casein hydrolysate fulfils the required criteria for a hypo-allergenic formula•The thickened extensive hydrolysate alleviates regurgitation in non-allergic infants.