Article
Homozygosity for disease-causing variants in AMT and GLDC in a patient with severe nonketotic hyperglycinemia.
American journal of medical genetics. Part A - 1 Aug 2024
Drackley Andy, Peter Merlene, Rathbun Pamela, Ing Alexander, Prada Carlos E, Yap Kai Lee
Abstract excerpt
Nonketotic hyperglycinemia (NKH) is a relatively well-characterized inborn error of metabolism that results in a combination of lethargy, hypotonia, seizures, developmental arrest, and, in severe cases, death early in life. Three genes encoding components of the glycine cleavage enzyme system-GLDC, AMT, and GCSH-are independently associated with NKH. We report on a patient with severe NKH in whom the homozygous...
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