A novel mutation in the SCN9A gene associated with congenital insensitivity to pain, anhidrosis, and mild cognitive impairment
Copyright policy )A novel mutation in the SCN9A gene associated with congenital insensitivity to pain, anhidrosis, and mild cognitive impairment
AbstractCongenital insensitivity to pain (CIP) is a rare phenotype characterized by the inability to perceive pain stimuli with subsequent self‐injuries, whereas CIP associated with anhidrosis (CIPA) is an overlapping phenotype mainly characterized by insensitivity to noxious stimuli and anhidrosis. CIP is primarily associated with pathogenetic variants in the SCN9A gene while CIPA is associated with pathogenetic variants in NGF and NRTK genes. However, in recent years, a significant overlap between these two disorders has been observed highlighting the presence of anhidrosis in SCN9A variants. We report the cases of two siblings (age 4 and 6 years) born from consanguineous parents presenting with a previously undescribed phenotype due to a novel pathogenic variant in SCN9A clinically characterized by congenital insensitivity to pain, anhidrosis, and mild cognitive impairment.
Hypohidrosis, Indoles, Pain Insensitivity, Congenital, NAV1.7 Voltage-Gated Sodium Channel, Pain, Child, Preschool, Mutation, Humans, Cognitive Dysfunction, Channelopathies, Receptor, trkA, Hereditary Sensory and Autonomic Neuropathies, Propionates, Child
Hypohidrosis, Indoles, Pain Insensitivity, Congenital, NAV1.7 Voltage-Gated Sodium Channel, Pain, Child, Preschool, Mutation, Humans, Cognitive Dysfunction, Channelopathies, Receptor, trkA, Hereditary Sensory and Autonomic Neuropathies, Propionates, Child
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