Intracranial hypertension in a patient with Hutchinson-Gilford progeria syndrome.

Hutchinson-Gilford syndrome, also known as progeria, is a rare genetic disorder that causes premature and accelerated ageing from the neonatal period. The disease is caused by de novo mutations in the LMNA gene. Patients present with a range of symptoms, including skin, bone, joint and cardiac disorders, as well as characteristic facial dysmorphia.

Gain-of-function variants in the ion channel gene underlie a spectrum of neurodevelopmental disorders.

TRPM3 is a temperature- and neurosteroid-sensitive plasma membrane cation channel expressed in a variety of neuronal and non-neuronal cells. Recently, rare de novo variants in were identified in individuals with developmental and epileptic encephalopathy, but the link between TRPM3 activity and neuronal disease remains poorly understood. We previously reported that two disease-associated variants in TRPM3 lead to a gain of channel function .