Friedreich ataxia , the oxidative stress
نویسندگان
چکیده
1 Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS/INSERM/Université Louis Pasteur, 67404 Illkirch cedex, CU de Strasbourg, France. 2 Institut de Chimie des Substances Naturelles (ICSN), CNRS, avenue de la Terrasse, 91190 Gif-sur-Yvette, France. 3 Center for Molecular and Mitochondrial Medicine and Genetics (MAMMAG), University of California Irvine, Irvine, CA 92697, USA. 4 Department of Pharmaceutical Sciences, 4200 East Ninth Avenue, Box C238. University of Colorado Health Sciences Center. Denver CO 80262.
منابع مشابه
Insights into the role of oxidative stress in the pathology of Friedreich ataxia using peroxidation resistant polyunsaturated fatty acids
Friedreich ataxia is an autosomal recessive, inherited neuro- and cardio-degenerative disorder characterized by progressive ataxia of all four limbs, dysarthria, areflexia, sensory loss, skeletal deformities, and hypertrophic cardiomyopathy. Most disease alleles have a trinucleotide repeat expansion in the first intron of the FXN gene, which decreases expression of the encoded protein frataxin....
متن کاملMolecular pathogenesis of Friedreich ataxia.
Friedreich ataxia, the most common type of inherited ataxia, is itself caused in most cases by a large expansion of an intronic GAA repeat, resulting in decreased expression of the target frataxin gene. The autosomal recessive inheritance of the disease gives this triplet repeat mutation some unique features of natural history and evolution. Frataxin is a mitochondrial protein that has homologu...
متن کاملImpaired Nuclear Nrf2 Translocation Undermines the Oxidative Stress Response in Friedreich Ataxia
BACKGROUND Friedreich ataxia originates from a decrease in mitochondrial frataxin, which causes the death of a subset of neurons. The biochemical hallmarks of the disease include low activity of the iron sulfur cluster-containing proteins (ISP) and impairment of antioxidant defense mechanisms that may play a major role in disease progression. METHODOLOGY/PRINCIPAL FINDINGS We thus investigate...
متن کاملFriedreich ataxia: the oxidative stress paradox.
Friedreich ataxia (FRDA) results from a generalized deficiency of mitochondrial and cytosolic iron-sulfur protein activity initially ascribed to mitochondrial iron overload. Recent in vitro data suggest that frataxin is necessary for iron incorporation in Fe-S cluster (ISC) and heme biosynthesis. In addition, several reports suggest that continuous oxidative damage resulting from hampered super...
متن کاملMolecular 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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تاریخ انتشار 2004