Absence of Cystathionase in Human Fetal Liver: Is Cystine Essential?
- 3 July 1970
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 169 (3940) , 74-76
- https://doi.org/10.1126/science.169.3940.74
Abstract
Cystathionase activity is not measurable in the livers of 24 human fetuses and 3 premature infants, and the concentration of cystathionine in the liver is higher than that of the brain. The placenta does not subserve the trans-sulfuration function. Cystine (or cysteine) thus may be an essential amino acid in the immature human.Keywords
This publication has 11 references indexed in Scilit:
- Biochemical Observations on So-called Hereditary TyrosinemiaPediatric Research, 1970
- Enzymatic and Metabolic Studies of Homocystinuria: Effects of PyridoxineNeuropediatrics, 1969
- The protein requirement of the premature infant. I. The effect of protein intake on the retention of nitrogenThe Journal of Pediatrics, 1969
- Plasma amino acid disturbance in infancy. I: Hypermethioninaemia and transient tyrosinaemia.Archives of Disease in Childhood, 1969
- Protein intake for low-birth-weight infantsThe Journal of Pediatrics, 1969
- Hypermethioninemia With Other HyperaminoacidemiasAmerican Journal of Diseases of Children, 1969
- Purification and properties of cystathionine synthetase from rat liver: Separation of cystathionine synthetase from serine dehydrataseBiochemical and Biophysical Research Communications, 1968
- Free Amino Acids in Milk.Experimental Biology and Medicine, 1963
- Automatic Recording Apparatus for Use in Chromatography of Amino AcidsAnalytical Chemistry, 1958
- THE AMINO ACID REQUIREMENTS OF MANPublished by Elsevier ,1955