Plasma valine and urinary C-peptide in breast-fed and artificially fed infants up to 6 months of age. 1984

B E Ginsburg, and B S Lindblad, and A Lundsjö, and B Persson, and R Zetterström

Plasma branched-chain amino acids and urinary C-peptide-creatinine excretion was determined at 3, 4 1/2 and 6 months of age in a group of 50 infants who were either breast-fed or artificially fed and selected at random. The average concentrations of valine in plasma and C-peptide in urine as well as the ratio between C-peptide and creatinine in urine were 2-3 times higher (p less than 0.01) in artificially fed as compared to breast-fed infants at all the ages studied. Plasma valine values correlated significantly with the urinary C-peptide/creatinine ratio (r = 0.76, p less than 0.01), which suggests that the enhanced insulin response induced by the artificial formula is related to its protein content.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007225 Infant Food Food processed and manufactured for the nutritional health of children in their first year of life. Food, Infant,Foods, Infant,Infant Foods
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D001903 Bottle Feeding Use of nursing bottles for feeding. Applies to humans and animals. Bottlefed,Bottlefeeding
D001942 Breast Feeding The nursing of an infant at the breast. Breast Fed,Breastfed,Milk Sharing,Wet Nursing,Breast Feeding, Exclusive,Breastfeeding,Breastfeeding, Exclusive,Exclusive Breast Feeding,Exclusive Breastfeeding,Sharing, Milk
D002096 C-Peptide The middle segment of proinsulin that is between the N-terminal B-chain and the C-terminal A-chain. It is a pancreatic peptide of about 31 residues, depending on the species. Upon proteolytic cleavage of proinsulin, equimolar INSULIN and C-peptide are released. C-peptide immunoassay has been used to assess pancreatic beta cell function in diabetic patients with circulating insulin antibodies or exogenous insulin. Half-life of C-peptide is 30 min, almost 8 times that of insulin. Proinsulin C-Peptide,C-Peptide, Proinsulin,Connecting Peptide,C Peptide,C Peptide, Proinsulin,Proinsulin C Peptide
D003404 Creatinine Creatinine Sulfate Salt,Krebiozen,Salt, Creatinine Sulfate,Sulfate Salt, Creatinine
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000597 Amino Acids, Branched-Chain Amino acids which have a branched carbon chain. Branched-Chain Amino Acid,Amino Acids, Branched Chain,Acid, Branched-Chain Amino,Acids, Branched-Chain Amino,Amino Acid, Branched-Chain,Branched Chain Amino Acid,Branched-Chain Amino Acids

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