This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator.
The aim of this study is to characterize in detail the clinical features of periventricular nodular heterotopia (PH), a malformation of cortical development. This disorder, which is most commonly inherited in an X-linked dominant manner and is associated with mutations in the filamin-1 gene, is characterized by the presence of heterotopic nodules of neurons lining the ventricles of the brain. Clinically, most patients appear to have normal intelligence but suffer from epilepsy. In addition, periventricular heterotopia patients described in an initial series appeared to have a disproportionately high rate of congenital cardiac defects and vascular disease. This study aims to perform a number of noninvasive investigations on patients with periventricular heterotopia.
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