[Use of screening for amino acid disorders in the study of the nutrition of the newborn infant: various milk formulas and changes in plasma amino acids].

A sample of 1326 new-born babies has been studied regarding the influence of the milk diet over some plasma-serum amino acids. The Authors have make use of the screening of the congenital errors of the protein metabolism. New-born babies were bled on the fifth or sixth day of life and their blood was analysed at first with the Guthrie test and then with automatic chromatographic determination.

[The newborn infant in the Aosta Valley: preliminary statistical analysis of various ethnic and geographic factors].

We have examined 976 new-born babies in Aosta Valley retrospectively, in order to determine which risk factors were significantly linked with the high incidence of: hospitalization and infants with below average neonatal and placental weight. The new-borns of native mothers have been compared with those of immigrant mothers, and also the new-borns of parents living in mountains have been compared with those of parents living in town. Results have shown new-born babies of native mother are at a disadvantage, especially regarding: the neonatal and placental average weight and the incidence of small for gestational age infants (SGA).