Inborn defects of urea cycle often results in life-threatening hyperammonemia in neonates. The initial therapy of this disease comprises administration of benzoate sodium, arginine, lactulose, neomycin, and restrictive alimentation based on carbohydrates. Renal replacement therapy for ammonia removal should be considered for the most severe cases. We present a case report of two neonates with very rare inborn urea cycle disorders--deficiency of argininosuccinate lyase and carbamyl-phosphate synthetase, treated with spontaneous arterio-venous haemodiafiltration.
Download full-text PDF |
Source |
---|
Mol Ther
January 2025
Moderna, Inc., Cambridge, MA, USA 02142. Electronic address:
Ornithine transcarbamylase deficiency (OTCD) is the most common urea cycle disorder, characterized by hyperammonemia and accompanied by a high unmet patient need. mRNA therapies have been shown to be efficacious in hypomorphic Sparse-fur abnormal skin and hair (Spf-ash) mice, a model of late-onset disease. However, studying the efficacy of ornithine transcarbamylase (OTC) mRNA therapy in traditional knockout mice, a model for severe early-onset OTCD, is hampered by the rapid lethality of the model, and poor lipid nanoparticle (LNP) uptake into neonatal mouse liver.
View Article and Find Full Text PDFCureus
December 2024
Clinical Genetics, Aster Malabar Institute of Medical Sciences, Kozhikode, IND.
Neonatal hypoglycemia (NH) is a common abnormality in newborns, posing significant morbidity risks. Prompt diagnosis and treatment are vital to mitigate brain damage and enhance outcomes. Congenital hyperinsulinemia (CHI) is a leading cause of recurrent hypoglycemia in infants, often stemming from genetic mutations such as in the gene, manifesting as hyperinsulinism-hyperammonemia syndrome (HI/HA).
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
December 2024
Department of Genetics and Prenatal Diagnosis, Hainan Women and Children's Medical Center, Haikou, Hainan 570206, China.
Objective: To investigate the results of preimplantation genetic testing for monogenic diseases (PGT-M) in a Chinese pedigree affected with Primary carnitine deficiency (PCD).
Methods: A pedigree affected with PCD who visited Hainan Women and Children's Medical Center in April 2023 due to "SLC22A5 gene mutation found in offspring genetic testing and preparing for a second child" was selected as the study subject. Pathogenicity of the proband's variant sites was determined by referring to the Standards and Guidelines for the Interpretation of Sequence Variants established by the American College of Medical Genetics and Genomics (ACMG).
Mol Genet Metab Rep
December 2024
Department of Neuroscience of Disease, Brain Research Institute, Niigata University, Niigata 951-8585, Japan.
The gene encodes carnitine-acylcarnitine translocase (CACT), facilitating the transport of long-chain acylcarnitine required for energy production via β-oxidation into the mitochondria. Loss-of-function mutations in this gene lead to CACT deficiency, a rare autosomal recessive disorder of fatty acid metabolism characterized by severe symptoms including cardiomyopathy, hepatic dysfunction, rhabdomyolysis, hypoketotic hypoglycemia, and hyperammonemia, often resulting in neonatal mortality. Here, we utilized CRISPR/Cas9 gene editing to isolate mutant zebrafish.
View Article and Find Full Text PDFMCN Am J Matern Child Nurs
December 2024
Sharon Anderson is an Associate Professor, Division of Advanced Nursing Practice, Rutgers School of Nursing, Newark, NJ; and Advanced Practice Nurse, Medical Genetics, Rutgers Health, Rutgers Robert Wood Johnson Medical School, Child Health Institute of New Jersey, New Brunswick, NJ. Dr. Anderson can be reached at and
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!