Journal
NEUROLOGICAL SCIENCES
Volume 42, Issue 11, Pages 4759-4765Publisher
SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s10072-021-05480-z
Keywords
JAM3; Seizures; Cerebral hemorrhages; Cataracts; Neonate; Infant
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Mutations in the JAM3 gene are associated with HDBSCC and DEE, with implications for perinatal and postnatal management and genetic counseling. This study also reports the first case of a child with a JAM3 variant in Italy, from a different ethnic background.
Background JAM3 gene, located on human chromosome 11q25, encodes a member of the junctional adhesion molecule (JAM) family. Mutations of this gene are associated with hemorrhagic destruction of the brain, subependymal calcification, and congenital cataracts (HDBSCC). Case report Herein, we present a newborn male with a prenatal suspicion of bilateral cataracts but without fetal ultrasound findings of cortical malformations. He was postnatally diagnosed with a clinical picture of HDBSCC and Early-onset Developmental and Epileptic Encephalopathy (DEE), associated to a homozygous variant of JAM3 gene. Conclusion Identification of this variant in affected individuals has implications for perinatal and postnatal management and genetic counseling. To the best of our knowledge, this is the first case reported of a child with a JAM3 variant in Italy, from a different ethnic background than the other reported children until now (Saudi Arabian, Turkish, Afghani, and Moroccan origin). JAM3 screening could be requested in prenatal diagnosis of fetal congenital cataracts and included in Next-Generation DNA Sequencing panels.
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