Department of Neurosciences, Università Cattolica, Lgo A. Gemelli 8, 00168 Rome, Italy.
Visit Original Article Website
Dileone, M; Zampino, G; Profice, P; Pilato, F; Leoni, C; Ranieri, F; Capone, F; Tartaglia, M; Brown, P; Di Lazzaro, V
Costello Syndrome is a rare multiple congenital anomaly disorder caused by de novo heterozygous mutations in the v-Ha-ras Harvey rat sarcoma viral oncogene homolog (HRAS) gene. Recent studies seem to support apparent autosomal dominant inheritance and somatic mosaicism and an association with advanced parental age. Abnormal hand posture has been reported as a typical feature of Costello Syndrome but the pathophysiology of this is unclear. We evaluated and described posture and movement in six consecutive subjects with genetically proven Costello Syndrome, in order to better characterize the phenomenology of the associated postural abnormalities and any related motor abnormalities. We also evaluated motor cortex plasticity by applying Paired Associative Stimulation. All the patients presented the typical postural abnormalities reported in Costello Syndrome, in particular the ulnar deviation of fingers. The latter was reducible and not fixed. In addition, patients exhibited more explicit dystonic features of the face, limbs and trunk and altered sensorimotor plasticity consistent with generalized dystonia. These findings suggest that dystonia may underlie the abnormal postures described in Costello Syndrome patients. Copyright © 2012 Elsevier Ltd. All rights reserved.
Biomedical Concepts and Procedures
Drug Discovery Context
Click on any component of the trees below to see articles for any topic that is a member of that