نتایج جستجو برای: friedreich

تعداد نتایج: 2912  

2013
Agathi-Vasiliki Goula Karine Merienne

More than fifteen genetic diseases, including Huntington's disease, myotonic dystrophy 1, fragile X syndrome and Friedreich ataxia, are caused by the aberrant expansion of a trinucleotide repeat. The mutation is unstable and further expands in specific cells or tissues with time, which can accelerate disease progression. DNA damage and base excision repair (BER) are involved in repeat instabili...

Journal: :The Journal of biological chemistry 2010
Timothy L Stemmler Emmanuel Lesuisse Debkumar Pain Andrew Dancis

Friedreich ataxia is an inherited neurodegenerative disease caused by frataxin deficiency. Frataxin is a conserved mitochondrial protein that plays a role in FeS cluster assembly in mitochondria. FeS clusters are modular cofactors that perform essential functions throughout the cell. They are synthesized by a multistep and multisubunit mitochondrial machinery that includes the scaffold protein ...

Journal: :Arquivos de neuro-psiquiatria 2009
Emília Katiane Embiruçu Marcília Lima Martyn David Schlesinger Fernando Kok

More than 140 years after the first description of Friedreich ataxia, autosomal recessive ataxias have become one of the more complex fields in neurogenetics. Currently this group of diseases contains more than 20 clinical entities and an even larger number of associated genes. Some disorders are very rare, restricted to isolated populations, and others are found worldwide. An expressive number...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2004
L Pianese M Turano M S Lo Casale I De Biase M Giacchetti A Monticelli C Criscuolo A Filla S Cocozza

The most common causative mutation of Friedreich ataxia (FRDA) is the unstable hyperexpansion of an intronic GAA triplet repeat that impairs frataxin transcription. Using real time quantitative PCR, we showed that FRDA patients had residual levels of frataxin mRNA ranging between 13% and 30% and that FRDA carriers had about 40% of that of controls. Asymptomatic carriers also showed reduced frat...

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