Transient neonatal hyperglycinemia.
Two patients with neonatal seizures and subsequent normal neurological development were found to have nonketotic hyperglycinemia. In both patients, hyperglycinemia resolved at 6 weeks of age. After cerebrospinal fluid glycine levels were normalized, the seizures stopped completely in one child and were markedly improved in the other. The possible mechanisms for the hyperglycinemia are discussed.
Schiffmann
R
R
Division of Pediatric Neurology, Floating Hospital for Infants and Children, Tufts Medical School, Boston, MA 02111.
Kaye
E M
EM
Willis
J K
JK
Africk
D
D
Ampola
M
M
D000592:Amino Acid Metabolism, Inborn Errors / Q000175:diagnosis / Q000235:genetics*; D001786:Blood Glucose / Q000378:metabolism; D005260:Female; D005500:Follow-Up Studies; D005808:Genes, Recessive; D005998:Glycine / Q000097:blood*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D013036:Spasms, Infantile / Q000235:genetics*
D001786:Blood Glucose; D005998:Glycine