학술논문
Cerebral and portal vein thrombosis, macrocephaly and atypical absence seizures in Glycosylphosphatidyl inositol deficiency due to a PIGM promoter mutation.
Document Type
Article
Author
Pode-Shakked, Ben; Heimer, Gali; Vilboux, Thierry; Marek-Yagel, Dina; Ben-Zeev, Bruria; Davids, Mariska; Ferreira, Carlos R.; Philosoph, Amit Mary; Veber, Alvit; Pode-Shakked, Naomi; Kenet, Gili; Soudack, Michalle; Hoffmann, Chen; Vernitsky, Helly; Safaniev, Marina; Lodzki, Maya; Lahad, Avishay; Shouval, Dror S.; Levinkopf, Dana; Weiss, Batia
Source
Subject
*PORTAL vein
*CEREBRAL veins
*SEIZURES (Medicine)
*CONGENITAL disorders
*THROMBOSIS
*KOUNIS syndrome
*
*
*
*
*
Language
ISSN
1096-7192
Abstract
Defects of the glycosylphosphatidylinositol (GPI) biosynthesis pathway constitute an emerging subgroup of congenital disorders of glycosylation with heterogeneous phenotypes. A mutation in the promoter of PIGM , resulting in a syndrome with portal vein thrombosis and persistent absence seizures, was previously described in three patients. We now report four additional patients in two unrelated families, with further clinical, biochemical and molecular delineation of this unique entity. We also describe the first prenatal diagnosis of PIGM deficiency, allowing characterization of the natural history of the disease from birth. The patients described herein expand the phenotypic spectrum of PIGM deficiency to include macrocephaly and infantile-onset cerebrovascular thrombotic events. Finally, we offer insights regarding targeted treatment of this rare disorder with sodium phenylbutyrate. [ABSTRACT FROM AUTHOR]