Cardiomyopathy in Friedreich ataxia: exemplifying the challenges faced by cardiologists in the management of rare diseases.

نویسندگان

  • Morten Kvistholm Jensen
  • Henning Bundgaard
چکیده

Friedreich ataxia (FA) is an autosomal recessively inherited neurodegenerative disease that most often presents in childhood or in young adulthood. A substantial proportion of patients with FA also develop a cardiomyopathy that usually presents as left ventricular hypertrophy (FA-CM). The mean life expectancy is significantly reduced to 40 years, and 60% of patients with FA die from cardiac causes.1,2 The prevalence of FA is 0.1 to 4.7:100 000, and an estimated 9000 Americans are affected.3 The potential ability to reduce disease progression or even to reverse FA-CM by antioxidants underscores the importance of early identification of the disease and the development of clinically identifiable markers of cardiac involvement. In the current issue of Circulation, the Mitochondrial Protection With Idebenone in Cardiac or Neurological Outcome (MICONOS) study group investigated such markers.4

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منابع مشابه

Molecular and Clinical Investigation of Iranian Patients with Friedreich Ataxia

Background: Friedreich ataxia (FRDA) is an autosomal recessive disorder caused by guanine-adenine-adenine (GAA) triplet expansions in the FXN gene. Its product, frataxin, which severely reduces in FRDA patients, leads to oxidative damage in mitochondria. The purpose of this study was to evaluate the triple nucleotide repeated expansions in Iranian FRDA patients and to elucidate distinguishable ...

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Introduction: The mitochondrial defects in Friedreich ataxia (FRDA) have been reported in many researches. Friedreich ataxia is an autosomal recessive neurodegenerative disorder caused by decreased expression of the Frataxin protein. Frataxin deficiency leads to excessive free radical production and dysfunction of respiratory chain complexes. Mitochondrial DNA (mtDNA) could be considered as a c...

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Anaesthetic management of vaginal delivery in a woman with Friedreich's ataxia complicated by cardiomyopathy and scoliosis.

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Cardiomyopathy in Friedreich ataxia: clinical findings and research.

Friedreich ataxia is the most common human ataxia and results from inadequate production of the frataxin protein, most often the result of a triplet expansion in the nuclear FXN gene. The gene cannot be transcribed to generate the messenger ribonucleic acid for frataxin. Frataxin is an iron-binding protein targeted to the mitochondrial matrix. In its absence, multiple iron-sulfur-dependent prot...

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عنوان ژورنال:
  • Circulation

دوره 125 13  شماره 

صفحات  -

تاریخ انتشار 2012