Steroid Treatment In Ataxia-Telangiectasia Induces Alterations Of Functional Magnetic Resonance Imaging During Prono-Supination Task(438 views) Quarantelli M, Giardino G, Prinster A, Aloj G, Carotenuto B, Cirillo E, Marsili A, Salvatore E, Del Giudice E, Pignata C
Keywords: Ataxia-Teleangiectasia, Betamethasone, Fmri, Adolescent, Article, Ataxia Telangiectasia, Body Posture, Case Report, Child, Cohort Analysis, Controlled Study, Female, Functional Magnetic Resonance Imaging, Human, Motor Cortex, Motor Performance, Multiple Cycle Treatment, Nuclear Magnetic Resonance Scanner, Pilot Study, Priority Journal, Rating Scale, Scale For The Assessment And Rating Of Ataxia, School Child, Validation Process, Voxel Based Morphometry, Glucocorticoids, Pilot Projects, Psychomotor Performance, Ataxia Telangiectasia Drug Therapy, Betamethasone Therapeutic Use, Glucocorticoids Therapeutic Use, Motor Cortex Drug Effects, Psychomotor Performance Drug Effects,
Affiliations: *** IBB - CNR ***
Biostructure and Bioimaging Institute, National Research Council, Naples, Italy
Department of Pediatrics, Unit of Immunology Federico II University, Via S. Pansini, 5-80131, Naples, Italy
SDN Foundation, Naples, Italy
Department of Biomorphological and Functional Sciences, Naples, Italy
Department of Neurosciences, University Federico II, Naples, Italy
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Steroid Treatment In Ataxia-Telangiectasia Induces Alterations Of Functional Magnetic Resonance Imaging During Prono-Supination Task
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 TO 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. (C) 2012 European Paediatric Neurology Society. Published by Elsevier Ltd. All rights reserved
Steroid Treatment In Ataxia-Telangiectasia Induces Alterations Of Functional Magnetic Resonance Imaging During Prono-Supination Task
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Steroid Treatment In Ataxia-Telangiectasia Induces Alterations Of Functional Magnetic Resonance Imaging During Prono-Supination Task
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