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dc.contributor.authorLópez, Ana
dc.contributor.authorOrtiz, Francisco
dc.contributor.authorDoerrier, Carolina
dc.contributor.authorVenegas, Carmen
dc.contributor.authorAranda, Paula
dc.contributor.authorDíaz Casado, María Elena 
dc.contributor.authorFernandez-Gil, Beatriz
dc.contributor.authorBarriocanal Casado, Eliana 
dc.contributor.authorEscames, Germaine
dc.contributor.authorLópez, Luis Carlos
dc.contributor.authorAcuña Castroviejo, Darío 
dc.contributor.authorFernández-Ortiz, Marisol
dc.date.accessioned2025-01-29T13:02:05Z
dc.date.available2025-01-29T13:02:05Z
dc.date.issued2017
dc.identifier.urihttps://hdl.handle.net/10481/100989
dc.description.abstractMPTP-mouse model constitutes a well-known model of neuroinflammation and mitochondrial failure occurring in Parkinson's disease (PD). Although it has been extensively reported that nitric oxide (NO●) plays a key role in the pathogenesis of PD, the relative roles of nitric oxide synthase isoforms iNOS and nNOS in the nigrostriatal pathway remains, however, unclear. Here, the participation of iNOS/nNOS isoforms in the mitochondrial dysfunction was analyzed in iNOS and nNOS deficient mice. Our results showed that MPTP increased iNOS activity in substantia nigra and striatum, whereas it sharply reduced complex I activity and mitochondrial bioenergetics in all strains. In the presence of MPTP, mice lacking iNOS showed similar restricted mitochondrial function than wild type or mice lacking nNOS. These results suggest that iNOS-dependent elevated nitric oxide, a major pathological hallmark of neuroinflammation in PD, does not contribute to mitochondrial impairment. Therefore, neuroinflammation and mitochondrial dysregulation seem to act in parallel in the MPTP model of PD. Melatonin administration, with well-reported neuroprotective properties, counteracted these effects, preventing from the drastic changes in mitochondrial oxygen consumption, increased NOS activity and prevented reduced locomotor activity induced by MPTP. The protective effects of melatonin on mitochondria are also independent of its anti-inflammatory properties, but both effects are required for an effective anti-parkinsonian activity of the indoleamine as reported in this study.es_ES
dc.language.isoenges_ES
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs 3.0 Licensees_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es_ES
dc.titleMitochondrial impairment and melatonin protection in parkinsonian mice do not depend of inducible or neuronal nitric oxide synthaseses_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1371/journal.pone.0183090
dc.type.hasVersionAMes_ES


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