0000000000356971

AUTHOR

Lucía Gutiérrez

showing 2 related works from this author

Metal homeostasis regulators suppress FRDA phenotypes in a drosophila model of the disease

2016

Friedreich's ataxia (FRDA), the most commonly inherited ataxia in populations of European origin, is a neurodegenerative disorder caused by a decrease in frataxin levels. One of the hallmarks of the disease is the accumulation of iron in several tissues including the brain, and frataxin has been proposed to play a key role in iron homeostasis. We found that the levels of zinc, copper, manganese and aluminum were also increased in a Drosophila model of FRDA, and that copper and zinc chelation improve their impaired motor performance. By means of a candidate genetic screen, we identified that genes implicated in iron, zinc and copper transport and metal detoxification can restore frataxin def…

0301 basic medicinePhysiologyGene Expressionlcsh:MedicineMitochondrionmedicine.disease_causeAntioxidantsIron-Binding ProteinsMedicine and Health SciencesHomeostasislcsh:ScienceGeneticsMultidisciplinarybiologyDrosophila MelanogasterIron-binding proteinsAnimal ModelsPhenotypeMitochondria3. Good healthInsectsDNA-Binding ProteinsChemistryZincPhenotypesPhysical SciencesDrosophilaAnatomymedicine.symptomDrosophila melanogasterResearch ArticleChemical ElementsAtaxiaArthropodaIronResearch and Analysis Methods03 medical and health sciencesModel OrganismsOcular SystemmedicineGeneticsAnimalsHumansGenetikManganeselcsh:ROrganismsBiology and Life SciencesCell Biologybiology.organism_classificationInvertebratesOxidative StressDisease Models Animal030104 developmental biologyFriedreich AtaxiaFrataxinbiology.proteinEyeslcsh:QPhysiological ProcessesCarrier ProteinsHeadCopperOxidative stressAluminumTranscription FactorsGenetic screen
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Deferiprone and idebenone rescue frataxin depletion phenotypes in a Drosophila model of Friedreich's ataxia

2013

Friedreich's ataxia (FRDA), the most common inherited ataxia, is a neurodegenerative disease caused by a reduction in the levels of the mitochondrial protein frataxin, the function of which remains a controversial matter. Several therapeutic approaches are being developed to increase frataxin expression and reduce the intramitochondrial iron aggregates and oxidative damage found in this disease. In this study, we tested separately the response of a Drosophila RNAi model of FRDA ( Llorens et al., 2007) to treatment with the iron chelator deferiprone (DFP) and the antioxidant idebenone (IDE), which are both in clinical trials. The FRDA flies have a shortened life span and impaired motor coord…

AtaxiaPyridonesUbiquinoneIronLife spanHyperoxiaBiologyPharmacologyMitochondrionmedicine.disease_causeAconitaseAntioxidantsAconitasechemistry.chemical_compoundIron-Binding ProteinsGeneticsmedicineAnimalsIdebenoneDeferiproneAconitate HydrataseHyperoxiaFrataxinClimbing capabilityGeneral MedicineMitochondriaDisease Models AnimalOxidative StressPhenotypechemistryFriedreich AtaxiaOxidative stressMutationFrataxinbiology.proteinDrosophilamedicine.symptomDeferiproneOxidative stressmedicine.drugGene
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