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Gallego-Villar L, Rivera-Barahona A, Cuevas-Martín C, Guenzel A, Pérez B, Barry MA, Murphy MP, Logan A, Gonzalez-Quintana A, Martín MA, Medina S, Gil-Izquierdo A, Cuezva JM, Richard E, Desviat LR. In vivo evidence of mitochondrial dysfunction and altered redox homeostasis in a genetic mouse model of propionic acidemia: Implications for the pathophysiology of this disorder. Free Radic Biol Med 2016; 96:1-12. [PMID: 27083476 DOI: 10.1016/j.freeradbiomed.2016.04.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/01/2016] [Accepted: 04/02/2016] [Indexed: 12/16/2022]
Abstract
Accumulation of toxic metabolites has been described to inhibit mitochondrial enzymes, thereby inducing oxidative stress in propionic acidemia (PA), an autosomal recessive metabolic disorder caused by the deficiency of mitochondrial propionyl-CoA carboxylase. PA patients exhibit neurological deficits and multiorgan complications including cardiomyopathy. To investigate the role of mitochondrial dysfunction in the development of these alterations we have used a hypomorphic mouse model of PA that mimics the biochemical and clinical hallmarks of the disease. We have studied the tissue-specific bioenergetic signature by Reverse Phase Protein Microarrays and analysed OXPHOS complex activities, mtDNA copy number, oxidative damage, superoxide anion and hydrogen peroxide levels. The results show decreased levels and/or activity of several OXPHOS complexes in different tissues of PA mice. An increase in mitochondrial mass and OXPHOS complexes was observed in brain, possibly reflecting a compensatory mechanism including metabolic reprogramming. mtDNA depletion was present in most tissues analysed. Antioxidant enzymes were also found altered. Lipid peroxidation was present along with an increase in hydrogen peroxide and superoxide anion production. These data support the hypothesis that oxidative damage may contribute to the pathophysiology of PA, opening new avenues in the identification of therapeutic targets and paving the way for in vivo evaluation of compounds targeting mitochondrial biogenesis or reactive oxygen species production.
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Affiliation(s)
- L Gallego-Villar
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - A Rivera-Barahona
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - C Cuevas-Martín
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | | | - B Pérez
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | | | - M P Murphy
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Logan
- Medical Research Council, Mitochondrial Biology Unit, Cambridge, UK
| | - A Gonzalez-Quintana
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - M A Martín
- CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
| | - S Medina
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - A Gil-Izquierdo
- Department of Food Science and Technology, CEBAS-CSIC, Campus de Espinardo 25, 30100 Espinardo, Murcia, Spain
| | - J M Cuezva
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
| | - E Richard
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain
| | - L R Desviat
- Centro de Biología Molecular Severo Ochoa UAM-CSIC, Universidad Autónoma, Madrid, Spain; CIBER de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain; Centro de Diagnóstico de Enfermedades Moleculares (CEDEM), Madrid, Spain.
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Parés-Pollán L, Gonzalez-Quintana A, Docampo-Cordeiro J, Vargas-Gallego C, García-Álvarez G, Ramos-Rodríguez V, Diaz Rubio-García MP. [Modal failure analysis and effects in the detection of errors in the transport of samples to the clinical laboratory]. ACTA ACUST UNITED AC 2014; 29:197-203. [PMID: 24725518 DOI: 10.1016/j.cali.2014.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 03/04/2014] [Accepted: 03/05/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Owing to the decrease in values of biochemical glucose parameter in some samples from external extraction centres, and the risk this implies to patient safety; it was decided to apply an adaptation of the «Health Services Failure Mode and Effects Analysis» (HFMEA) to manage risk during the pre-analytical phase of sample transportation from external centres to clinical laboratories. MATERIALS AND METHODS A retrospective study of glucose parameter was conducted during two consecutive months. The analysis was performed in its different phases: to define the HFMEA topic, assemble the team, graphically describe the process, conduct a hazard analysis, design the intervention and indicators, and identify a person to be responsible for ensuring completion of each action. RESULTS The results of glucose parameter in one of the transport routes, were significantly lower (P=.006). The errors and potential causes of this problem were analysed, and criteria of criticality and detectability were applied (score≥8) in the decision tree. It was decided to: develop a document management system; reorganise extractions and transport routes in some centres; quality control of the sample container ice-packs, and the time and temperature during transportation. CONCLUSIONS This work proposes quality indicators for controlling time and temperature of transported samples in the pre-analytical phase. Periodic review of certain laboratory parameters can help to detect problems in transporting samples. The HFMEA technique is useful for the clinical laboratory.
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Affiliation(s)
- L Parés-Pollán
- Servicio de Análisis Clínicos/Bioquímica, Hospital universitario 12 de Octubre, Madrid, España.
| | - A Gonzalez-Quintana
- Servicio de Análisis Clínicos/Bioquímica, Hospital universitario 12 de Octubre, Madrid, España
| | - J Docampo-Cordeiro
- Servicio de Análisis Clínicos/Bioquímica, Hospital universitario 12 de Octubre, Madrid, España
| | - C Vargas-Gallego
- Servicio de Análisis Clínicos/Bioquímica, Hospital universitario 12 de Octubre, Madrid, España
| | - G García-Álvarez
- Dirección Médica de Continuidad Asistencial, Hospital universitario 12 de Octubre, Madrid, España
| | - V Ramos-Rodríguez
- Subdirección Médica de Servicios Centrales, Hospital universitario 12 de Octubre, Madrid, España
| | - M P Diaz Rubio-García
- Servicio de Análisis Clínicos/Bioquímica, Hospital universitario 12 de Octubre, Madrid, España
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