Document Detail


Steroid treatment in Ataxia-Telangiectasia induces alterations of functional magnetic resonance imaging during prono-supination task.
MedLine Citation:
PMID:  22763152     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Ataxia-Teleangiectasia (A-T) is a rare neurodegenerative disorder characterized by progressive cerebellar degeneration. Till few years ago only supportive care was available to improve the neurological function in A-T patients. Even though A-T remains an incurable disease, we recently demonstrated a drug dependent amelioration of neurological signs in A-T patients during a short-term treatment with oral betamethasone. AIMS: The aim of this study is to evaluate whether the steroid induced motor performance changes in A-T are associated with functional magnetic resonance imaging (fMRI) modifications. This represents a preliminary pilot study, which requires a validation on a larger cohort of patients. METHODS: Six A-T patients received a 10-days cycle of oral betamethasone at 0.03 mg/kg/day. fMRI studies were carried out at T0 and at the end of the cycle. The neurological evaluation was performed through the Scale for the Assessment and Rating of Ataxia (SARA) quantification. The fMRI protocol was a block design with alternating epochs of rest and prono-supination of the dominant (right) hand. RESULTS: The voxel-based comparison showed a remarkable increase in the number of activated voxels within the motor cortex under the on-therapy condition as compared with the cortical activity under baseline condition in the 2 patients who completed the study protocol. CONCLUSIONS: Changes in motor performance in A-T patients treated with betamethasone are coupled with an increase in the activation in relevant cortical areas, thus suggesting that in A-T patients steroid treatment could improve motor performance facilitating cortical compensatory mechanisms.
Authors:
Mario Quarantelli; Giuliana Giardino; Anna Prinster; Giuseppina Aloj; Barbara Carotenuto; Emilia Cirillo; Angela Marsili; Elena Salvatore; Ennio Del Giudice; Claudio Pignata
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-2
Journal Detail:
Title:  European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society     Volume:  -     ISSN:  1532-2130     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9715169     Medline TA:  Eur J Paediatr Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 European Paediatric Neurology Society. All rights reserved.
Affiliation:
Biostructure and Bioimaging Institute, National Research Council, Naples, Italy.
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