0000000000336505
AUTHOR
Angela Fazzolari-nesci
Tryptophan Fortification of Adapted Formula Increases Plasma Tryptophan Concentrations to Levels Not Different from Those Found in Breast-Fed Infants
Several recent studies have demonstrated significantly lower plasma total tryptophan concentrations in formula-fed than in breast-fed infants. We have measured preprandial plasma amino acid concentrations in infants breast-fed or fed a formula with a protein concentration of 1.57 g/dl and with a whey/casein ratio of 60:40 or a formula with a protein concentration of 1.37 g/dl and a whey/casein ratio of 40:60 and fortified with 10 mg/dl (15 mg/100 kcal) of tryptophan. Healthy term infants (10 per group) were either breast-fed from birth or randomly assigned to one of the two study formulas. At 4 and 12 weeks of age, anthropometric measurements were performed and blood samples were obtained. …
A whey-predominant formula induces fecal microbiota similar to that found in breast-fed infants
To compare the effects of a whey-predominant infant formula and breast milk on the gut microbiota, growth, and tolerance of infants, we conducted an open, prospective, parallel-group study in healthy newborn infants. A total of 60 infants were enrolled, and 55 completed the study. Of the 55 infants, 21 were breast-fed and 34 were fed a whey-predominant study formula that had low phosphate concentration (31 mg/100 kcal), was reduced in protein (1.8 g/100 kcal or 0.43 g/kJ), had lactose as the sole carbohydrate source, and had an amino acid profile and buffering capacity similar to that of human milk. At 30 and 60 days of age, fecal bacterial counts were determined using fluorescence in situ …
TAURINE SUPPLEMENTATION PREVENTS HYPERAMINOACIDEMIA IN GROWING TERM INFANTS FED HIGH PROTEIN COW'S MILK FORMULA. † 1891
Blood urea nitrogen (BUN) and plasma and urine amino acid concentrations were compared between three cohorts of healthy term infants who were breast-fed (BF) or randomly assigned to one of two formulas either taurine non-supplemented (FF) or taurine supplemented (FF+T). The formulas had a protein concentration of 2 g/dl (2.9 g/100 kcal) and a whey/casein ratio of 20/80. The infants were studied from 2 to 12 weeks of age. Weight gain and growth in length was normal and similar in all three feeding groups during the study interval. At 12 weeks BUN was significantly higher in the FF group than in the BF and FF+T groups of infants, 16.5 mg/dl vs 7.0 and 7.3 mg/dl respectively. Total plasma amin…