Fronto-cerebellar dysfunction and dysconnectivity underlying cognition in friedreich ataxia: The IMAGE-FRDA study
نویسندگان
چکیده
منابع مشابه
Tissue atrophy and elevated iron concentration in the extrapyramidal motor system in Friedreich ataxia: the IMAGE-FRDA study.
INTRODUCTION Friedreich ataxia (FRDA) is an autosomal recessive disorder defined by progressive motor incoordination. FRDA results from reduced expression of the protein, frataxin, which is involved in cellular iron homeostasis and metabolism, antioxidant protection, and iron-sulfur cluster biogenesis. Disruption of one or more of these processes putatively underpins the pathophysiology of FRDA...
متن کاملcase report of friedreich ataxia (frda)
index case is 17 years old girl with ataxia of gait since 3 years ago. she has been walking normally in past. sensory is normal in her legs. ocular movements are normal. she has mild scoliosis. her electrocardiogram shows t-wave inversions. her parents are cousins& asymptomatic. she has 5 brothers & 3 sisters. one of her brothers & one of her sisters are wheelchair dependent. their history is s...
متن کاملHepatic mitochondrial dysfunction in Friedreich Ataxia
BACKGROUND Mitochondrial dysfunction due to respiratory chain impairment is a key feature in pathogenesis of Friedreich ataxia. Friedreich ataxia affects the nervous system, heart and pancreas. METHODS We assessed hepatic mitochondrial function by (13)C-methionine-breath-test in 16 Friedreich ataxia patients and matched healthy controls. RESULTS Patients exhaled significantly smaller amount...
متن کاملIntrafamilial phenotypic variability in Friedreich ataxia associated with a G130V mutation in the FRDA gene.
BACKGROUND Most patients with Friedreich ataxia (FA) have a GAA trinucleotide repeat expansion in intron 1 of the FA gene (FRDA) on both arms of chromosome 9. However, some patients are compound heterozygotes and harbor a GAA expansion on one allele and a point mutation on the other. Compound heterozygous patients with FA who have a GAA expansion and a G130V mutation have been reported to have ...
متن کاملGene Expression Profiling of Mitochondrial Oxidative Phosphorylation (OXPHOS) Complex I in Friedreich Ataxia (FRDA) Patients
Friedreich ataxia (FRDA) is the most frequent progressive autosomal recessive disorder associated with unstable expansion of GAA trinucleotide repeats in the first intron of the FXN gene, which encodes for the mitochondrial frataxin protein. The number of repeats correlates with disease severity, where impaired transcription of the FXN gene results in reduced expression of the frataxin protein....
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2015
ISSN: 1065-9471
DOI: 10.1002/hbm.23034