RT Journal Article SR Electronic T1 Hair Amino Acids JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 678 OP 681 DO 10.1136/adc.45.243.678 VO 45 IS 243 A1 Marc Van Sande YR 1970 UL http://adc.bmj.com/content/45/243/678.abstract AB Hair amino acids have been studied in 10 controls and in 25 patients suffering from metabolic inborn errors. Abnormalities of hair amino acid pattern were found in several cases. In phenylketonuria (7 cases), the hair phenylalanine level was significantly higher than that of the normal subjects. Glutamic acid was decreased. In homocystinuria (5 cases), the phenylalanine level was increased. The results suggest that a detailed examination of the hair proteins could give further information.