1
|
Baeza I, Romera I, Fortuño JR. Massive hemoptysis due to Aspergillus-related pulmonary artery pseudoaneurysm in a patient with COVID-19 pneumonia. Med Intensiva 2023; 47:184-185. [PMID: 38620596 PMCID: PMC7881698 DOI: 10.1016/j.medin.2021.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 01/23/2021] [Indexed: 11/02/2022]
Affiliation(s)
- I Baeza
- Unidad de Cuidados Intensivos, SCIAS Hospital de Barcelona, Barcelona, Spain
| | - I Romera
- Unidad de Cuidados Intensivos, SCIAS Hospital de Barcelona, Barcelona, Spain
| | - J R Fortuño
- Departamento de Radiología, SCIAS Hospital de Barcelona, Barcelona, Spain
| |
Collapse
|
2
|
Arnaiz JA, Rodrigues-Silva C, Mezquida G, Amoretti S, Cuesta MJ, Fraguas D, Lobo A, González-Pinto A, Díaz-Caneja MC, Corripio I, Vieta E, Baeza I, Mané A, García-Rizo C, Bioque M, Saiz J, Bernardo M, Mas S. The usefulness of Olanzapine plasma concentrations in monitoring treatment efficacy and metabolic disturbances in first-episode psychosis. Psychopharmacology (Berl) 2021; 238:665-676. [PMID: 33230696 DOI: 10.1007/s00213-020-05715-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/10/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The role of Olanzapine therapeutic drug monitoring is controversial. The present study explores the associations of Olanzapine plasma concentrations with clinical response and metabolic side effects in first episode psychosis (FEP) after 2 months of treatment. METHODS Forty-seven patients were included. Improvement in clinical symptomatology was assessed using the PANSS. Metabolic assessment included weight, blood pressure, waist circumference, blood glucose, total cholesterol, high-density lipoprotein, low-density lipoprotein, and triglycerides. RESULTS The Olanzapine plasma concentrations after 2 months of treatment were positively correlated with weight gain (r = 0.49, p = 0.003), and a concentration > 23.28 ng/mL was identified as a positive predictor of weight gain (≥ 7%). The Olanzapine concentration to dose (C/D) ratio was positively correlated with the percentage of improvement in the total PANSS (r = 0.46, p = 0.004), and a C/D ratio > 2.12 was identified as a positive predictor of a good response (percentage of improvement > 30%) after 2 months of treatment. We also identified several factors that could alter Olanzapine pharmacokinetics: gender (p = 0.03), diagnosis (p = 0.05), smoking habit (p = 0.05), and co-medications such as valproic acid (p = 0.05) and anxiolytics (p = 0.01). DISCUSSION In conclusion, our results suggest that therapeutic drug monitoring of Olanzapine could be helpful to evaluate therapeutic efficacy and metabolic dysfunction in FEP patients treated with Olanzapine.
Collapse
Affiliation(s)
- J A Arnaiz
- Phase I Unit, Clinical Pharmacology Department, Hospital Clinic de Barcelona (HCB), Barcelona, Spain.,Department of Basic Clinical Practice, University of Barcelona (UB), Casanova 143, E-08036, Barcelona, Spain
| | - C Rodrigues-Silva
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - G Mezquida
- Department of Basic Clinical Practice, University of Barcelona (UB), Casanova 143, E-08036, Barcelona, Spain.,Barcelona Clínic Schizophrenia Unit, Neuroscience Institute, HCB, Barcelona, Catalunya, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
| | - S Amoretti
- Barcelona Clínic Schizophrenia Unit, Neuroscience Institute, HCB, Barcelona, Catalunya, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain
| | - M J Cuesta
- Departmentof Psychiatry, Complejo Hospitalario de Navarra, Instituto de Investigaciones Sanitarias de Navarra (IdiSNa), Pamplona, Spain
| | - D Fraguas
- Institute of Psychiatry and Mental Health, Hospital Clínico San Carlos, IdISSC, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - A Lobo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Department of Medicine and Psychiatry, Zaragoza University, Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
| | - A González-Pinto
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Hospital Universitario Araba, Servicio de Psiquiatria, UPV/EHU, Bioaraba, Spain
| | - M C Díaz-Caneja
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañon, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - I Corripio
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Psychiatry Department, Institut d'Investigació Biomèdica-Sant Pau (IIB-SANT PAU), Hospital de la Santa Creu i Sant Pau; Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - E Vieta
- Hospital Clinic, Institute of Neuroscience, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - I Baeza
- Department of Child and Adolescent Psychiatry and Psychology, Clínic Institute of Neurosciences, Hospital Clínic de Barcelona, 2017SGR881, University of Barcelona, CIBERSAM, IDIBAPS, Barcelona, Spain
| | - A Mané
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain.,Autonomous university of Barcelona (UAB), Barcelona, Spain
| | - C García-Rizo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain.,Barcelona Clínic Schizophrenia Unit, Neuroscience Institute, Hospital Clínic of Barcelona, Barcelona, Spain.,Department of Medicine, Barcelona, UB, Spain
| | - M Bioque
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain.,Barcelona Clínic Schizophrenia Unit, Neuroscience Institute, Hospital Clínic of Barcelona, Barcelona, Spain.,Department of Medicine, Barcelona, UB, Spain
| | - J Saiz
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Department of Psychiatry, Hospital Universitario Ramón y Cajal, IRYCIS, Universidad de Alcalá, Madrid, Spain
| | - M Bernardo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain.,Barcelona Clínic Schizophrenia Unit, Neuroscience Institute, Hospital Clínic of Barcelona, Barcelona, Spain.,Department of Medicine, Barcelona, UB, Spain
| | - S Mas
- Department of Basic Clinical Practice, University of Barcelona (UB), Casanova 143, E-08036, Barcelona, Spain. .,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain. .,Institut d'investigacions Biomèdiques August Pi i Sunyer (IDIBAPs), Barcelona, Spain.
| | | |
Collapse
|
3
|
Romera I, Núñez K, Calizaya M, Baeza I, Molina R, Morillas J. [SARS-CoV-2 reinfection]. Med Intensiva 2021; 45:375-376. [PMID: 34629586 PMCID: PMC7874941 DOI: 10.1016/j.medin.2021.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I Romera
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España.
| | - K Núñez
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - M Calizaya
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - I Baeza
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - R Molina
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - J Morillas
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| |
Collapse
|
4
|
De la Serna E, Ilzarbe D, Sugranyes G, Baeza I, Moreno D, Rodríguez-Toscano E, Espliego A, Ayora M, Romero S, Sánchez-Gistau V, Castro-Fornieles J. Lifetime psychopathology in child and adolescent offspring of parents diagnosed with schizophrenia or bipolar disorder: a 2-year follow-up study. Eur Child Adolesc Psychiatry 2021; 30:117-129. [PMID: 32146538 DOI: 10.1007/s00787-020-01500-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 02/21/2020] [Indexed: 10/24/2022]
Abstract
Having one parent diagnosed with a severe mental disorder is considered one of the main risk factors for developing that disorder in adulthood, and it also increases the risk of a wide range of mental disorders in the offspring. The aim of this study is to compare the prevalence of several psychopathological diagnoses, the presence of prodromal symptoms, and global functioning in offspring of parents with schizophrenia or bipolar disorder and in offspring of controls at baseline and 2-year follow-up. This study included 41 offspring of parents with schizophrenia, 90 offspring of parents with bipolar disorder, and 107 offspring of controls (mean age 11.7 ± 3.2 at baseline and 13.9 ± 3.2 at follow-up). The prevalence of psychopathology and comorbidity was higher in offspring of parents with schizophrenia and offspring of parents with bipolar disorder than in offspring of controls at baseline and at 2-year follow-up. Interestingly, mood disorders were more prevalent in offspring of parents with bipolar disorder and disruptive disorders were more prevalent in offspring of parents with schizophrenia. Prodromal symptoms were more frequent in offspring of parents with schizophrenia than in offspring of controls, while the offspring of parents with bipolar disorder showed an intermediate pattern. Finally, global functioning was lower in the offspring of parents with schizophrenia than the offspring of parents with bipolar disorder and the offspring of controls. Screening patients' children is clinically relevant, since, as a group, they have an elevated risk of developing a psychiatric disorder and of experiencing their first symptoms during childhood and adolescence.
Collapse
Affiliation(s)
- E De la Serna
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.
| | - D Ilzarbe
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, C/ Villarroel, 170, 08036, Barcelona, Spain
| | - G Sugranyes
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, C/ Villarroel, 170, 08036, Barcelona, Spain.,Institut D´Investigació Biomèdica August Pi I Sunyer, IDIBAPS, Barcelona, Spain
| | - I Baeza
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, C/ Villarroel, 170, 08036, Barcelona, Spain.,Institut D´Investigació Biomèdica August Pi I Sunyer, IDIBAPS, Barcelona, Spain.,Department of Psychiatry and Clinical Psychology, University of Barcelona, Barcelona, Spain
| | - D Moreno
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - E Rodríguez-Toscano
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - A Espliego
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - M Ayora
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - S Romero
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, C/ Villarroel, 170, 08036, Barcelona, Spain.,Institut D´Investigació Biomèdica August Pi I Sunyer, IDIBAPS, Barcelona, Spain
| | - V Sánchez-Gistau
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Early Intervention Psychosis Service, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira I Virgili, Reus, Spain
| | - J Castro-Fornieles
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain.,Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, C/ Villarroel, 170, 08036, Barcelona, Spain.,Institut D´Investigació Biomèdica August Pi I Sunyer, IDIBAPS, Barcelona, Spain.,Department of Psychiatry and Clinical Psychology, University of Barcelona, Barcelona, Spain
| |
Collapse
|
5
|
De la Serna E, Camprodon-Boadas P, Ilzarbe D, Sugranyes G, Baeza I, Moreno D, Díaz-Caneja CM, Rosa-Justicia M, Llorente C, Ayora M, Borras R, Torrent C, Bernardo M, Castro-Fornieles J. Neuropsychological development in the child and adolescent offspring of patients diagnosed with schizophrenia or bipolar disorder: A two-year follow-up comparative study. Prog Neuropsychopharmacol Biol Psychiatry 2020; 103:109972. [PMID: 32454164 DOI: 10.1016/j.pnpbp.2020.109972] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
UNLABELLED There has been growing scientific evidence in recent years that schizophrenia and bipolar disorder share clinical, cognitive, neuroimaging and genetic characteristics. This overlap might also be present in their offspring, who have an increased risk of developing both disorders. Comparing the characteristics of these samples may have important implications for understanding etiological processes. This study aimed to assess the development of cognitive functions over two years in a sample of child and adolescent offspring of patients diagnosed with schizophrenia (SZoff) or bipolar disorder (BDoff), comparing them with a community control group (CCoff). METHODS 90 BDoff, 41 SZoff and 107 CCoff aged between 6 and 17 years were included at baseline. At the two-year follow-up, 84.9% of the sample was re-assessed (78 BDoff, 32 SZoff and 92 CCoff). All subjects were assessed with a comprehensive neuropsychological test battery at baseline and at the two-year follow-up to evaluate: intelligence quotient, working memory, processing speed, verbal memory and learning, visual memory, executive functions and sustained attention. RESULTS Processing speed, verbal memory and executive functions showed different developmental patterns among the SZoff, BDoff and CCoff groups. The SZoff group maintained baseline performances in the three variables over time, while the BDoff group presented improved processing speed and executive functioning and the CCoff group showed improvements in verbal memory and executive functions at follow-up. CONCLUSIONS These findings suggest that the development of some cognitive functions might differ between child and adolescent SZoff and BDoff, indicating different trajectories during neurodevelopment.
Collapse
Affiliation(s)
- E De la Serna
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain.
| | - P Camprodon-Boadas
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Fundació Clínic per a la Recerca Biomèdica, Barcelona, Spain
| | - D Ilzarbe
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Department of Child Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Department of Psychiatry, Universitair Medisch Centrum Utrecht, Utrecht, the Netherlands; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain
| | - G Sugranyes
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain
| | - I Baeza
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain; Department of Medicine, University of Barcelona, Spain
| | - D Moreno
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - C M Díaz-Caneja
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - M Rosa-Justicia
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain
| | - C Llorente
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - M Ayora
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - R Borras
- Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain
| | - C Torrent
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain; Department of Medicine, University of Barcelona, Spain; Bipolar and Depressive Disorders Unit, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona, Spain
| | - M Bernardo
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain; Department of Medicine, University of Barcelona, Spain; Barcelona Clínic Schizophrenia Unit, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona, Spain
| | - J Castro-Fornieles
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Department of Child and Adolescent Psychiatry and Psychology, Institut Clinic de Neurociències, Hospital Clínic Universitari, Barcelona 2017SGR881, Spain; Institut d'Investigació Biomèdica August Pi i Sunyer, IDIBAPS, Barcelona, Spain; Department of Medicine, University of Barcelona, Spain
| |
Collapse
|
6
|
González-Ortega I, González-Pinto A, Alberich S, Echeburúa E, Bernardo M, Cabrera B, Amoretti S, Lobo A, Arango C, Corripio I, Vieta E, de la Serna E, Rodriguez-Jimenez R, Segarra R, López-Ilundain JM, Sánchez-Torres AM, Cuesta MJ, Zorrilla I, López P, Bioque M, Mezquida G, Barcones F, De-la-Cámara C, Parellada M, Espliego A, Alonso-Solís A, Grasa EM, Varo C, Montejo L, Castro-Fornieles J, Baeza I, Dompablo M, Torio I, Zabala A, Eguiluz JI, Moreno-Izco L, Sanjuan J, Guirado R, Cáceres I, Garnier P, Contreras F, Bobes J, Al-Halabí S, Usall J, Butjosa A, Sarró S, Landin-Romero R, Ibáñez A, Selva G. Influence of social cognition as a mediator between cognitive reserve and psychosocial functioning in patients with first episode psychosis. Psychol Med 2020; 50:2702-2710. [PMID: 31637990 DOI: 10.1017/s0033291719002794] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Social cognition has been associated with functional outcome in patients with first episode psychosis (FEP). Social cognition has also been associated with neurocognition and cognitive reserve. Although cognitive reserve, neurocognitive functioning, social cognition, and functional outcome are related, the direction of their associations is not clear. Therefore, the main aim of this study was to analyze the influence of social cognition as a mediator between cognitive reserve and cognitive domains on functioning in FEP both at baseline and at 2 years. METHODS The sample of the study was composed of 282 FEP patients followed up for 2 years. To analyze whether social cognition mediates the influence of cognitive reserve and cognitive domains on functioning, a path analysis was performed. The statistical significance of any mediation effects was evaluated by bootstrap analysis. RESULTS At baseline, as neither cognitive reserve nor the cognitive domains studied were related to functioning, the conditions for mediation were not satisfied. Nevertheless, at 2 years of follow-up, social cognition acted as a mediator between cognitive reserve and functioning. Likewise, social cognition was a mediator between verbal memory and functional outcome. The results of the bootstrap analysis confirmed these significant mediations (95% bootstrapped CI (-10.215 to -0.337) and (-4.731 to -0.605) respectively). CONCLUSIONS Cognitive reserve and neurocognition are related to functioning, and social cognition mediates in this relationship.
Collapse
Affiliation(s)
- I González-Ortega
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Araba University Hospital, Bioaraba Research Institute, Vitoria, Spain
- Department of Neurosciences, University of the Basque Country, Bizkaia, Spain
- The National Distance Education University (UNED), Vitoria, Spain
| | - A González-Pinto
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Araba University Hospital, Bioaraba Research Institute, Vitoria, Spain
- Department of Neurosciences, University of the Basque Country, Bizkaia, Spain
| | - S Alberich
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Araba University Hospital, Bioaraba Research Institute, Vitoria, Spain
- Department of Neurosciences, University of the Basque Country, Bizkaia, Spain
- The National Distance Education University (UNED), Vitoria, Spain
| | - E Echeburúa
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Personality, Assessment and Psychological Treatment, University of the Basque Country, San Sebastián, Spain
| | - M Bernardo
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain
| | - B Cabrera
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain
| | - S Amoretti
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain
| | - A Lobo
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Medicine and Psychiatry, University of Zaragoza, Aragon Institute for Health Sciences (IIS Aragón), Zaragoza, Spain
| | - C Arango
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Department, Gregorio Marañón General University Hospital, School of Medicine, Universidad Complutense, IiSGM, Madrid, Spain
| | - I Corripio
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Institut d'Investigació Biomèdica-Sant Pau (IIB-SANT PAU), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - E Vieta
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Bipolar Disorders Unit, Hospital Clinic, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - E de la Serna
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Service, Hospital Clinic of Barcelona, Barcelona, Spain
| | - R Rodriguez-Jimenez
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- 12 de Octubre Hospital Research Institute (i+12), Madrid, Spain
| | - R Segarra
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Neurosciences, University of the Basque Country, Cruces University Hospital, Biocruces Bizkaia Health Research Institute, Vizcaya, Spain
| | - J M López-Ilundain
- Department of Psychiatry, Navarre Hospital Complex, IdiSNA, Navarre Institute for Health Research, Pamplona, Spain
| | - A M Sánchez-Torres
- Department of Psychiatry, Navarre Hospital Complex, IdiSNA, Navarre Institute for Health Research, Pamplona, Spain
| | - M J Cuesta
- Department of Psychiatry, Navarre Hospital Complex, IdiSNA, Navarre Institute for Health Research, Pamplona, Spain
| | - I Zorrilla
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Araba University Hospital, Bioaraba Research Institute, Vitoria, Spain
- Department of Neurosciences, University of the Basque Country, Bizkaia, Spain
| | - P López
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Araba University Hospital, Bioaraba Research Institute, Vitoria, Spain
- Department of Neurosciences, University of the Basque Country, Bizkaia, Spain
| | - M Bioque
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain
| | - G Mezquida
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain
| | - F Barcones
- Department of Medicine and Psychiatry, University of Zaragoza, Aragon Institute for Health Sciences (IIS Aragón), Zaragoza, Spain
- Department of Family Medicine, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - C De-la-Cámara
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Medicine and Psychiatry, University of Zaragoza, Aragon Institute for Health Sciences (IIS Aragón), Zaragoza, Spain
| | - M Parellada
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Department, Gregorio Marañón General University Hospital, School of Medicine, Universidad Complutense, IiSGM, Madrid, Spain
| | - A Espliego
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Department, Gregorio Marañón General University Hospital, School of Medicine, Universidad Complutense, IiSGM, Madrid, Spain
| | - A Alonso-Solís
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Institut d'Investigació Biomèdica-Sant Pau (IIB-SANT PAU), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - E M Grasa
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Psychiatry, Institut d'Investigació Biomèdica-Sant Pau (IIB-SANT PAU), Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - C Varo
- Bipolar Disorders Unit, Hospital Clinic, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - L Montejo
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Bipolar Disorders Unit, Hospital Clinic, University of Barcelona, IDIBAPS, Barcelona, Spain
| | - J Castro-Fornieles
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Service, Hospital Clinic of Barcelona, Barcelona, Spain
| | - I Baeza
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Child and Adolescent Psychiatry Service, Hospital Clinic of Barcelona, Barcelona, Spain
| | - M Dompablo
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- 12 de Octubre Hospital Research Institute (i+12), Madrid, Spain
| | - I Torio
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- 12 de Octubre Hospital Research Institute (i+12), Madrid, Spain
| | - A Zabala
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Neurosciences, University of the Basque Country, Cruces University Hospital, Biocruces Bizkaia Health Research Institute, Vizcaya, Spain
| | - J I Eguiluz
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Department of Neurosciences, University of the Basque Country, Cruces University Hospital, Biocruces Bizkaia Health Research Institute, Vizcaya, Spain
| | - L Moreno-Izco
- Department of Psychiatry, Navarre Hospital Complex, IdiSNA, Navarre Institute for Health Research, Pamplona, Spain
| | - J Sanjuan
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- INCLIVA, University of Valencia, Hospital Clinico Universitario of Valencia, Spain
| | - R Guirado
- Neurobiology Unit, Department of Cell Biology, Interdisciplinary Research Structure for Biotechnology and Biomedicine (BIOTECMED), University of Valencia, Valencia, Spain
| | - I Cáceres
- Department of Psychiatry, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - P Garnier
- Department of Psychiatry, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - F Contreras
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Psychiatry Department, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
- Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - J Bobes
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Psychiatry Department, University of Oviedo, Oviedo, Spain
| | - S Al-Halabí
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Psychiatry Department, University of Oviedo, Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias, INEUROPA, Oviedo, Spain
| | - J Usall
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Research Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona (UB), Sant Boi de Llobregat, Barcelona, Spain
| | - A Butjosa
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Research Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona (UB), Sant Boi de Llobregat, Barcelona, Spain
| | - S Sarró
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- FIDMAG Hermanas Hospitalarias Research Foundation, Barcelona, Spain
| | - R Landin-Romero
- FIDMAG Hermanas Hospitalarias Research Foundation, Barcelona, Spain
| | - A Ibáñez
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Psychiatry Department, Ramón y Cajal University Hospital, Ramón y Cajal Health Research Institute (IRyCIS), University of Alcalá, Madrid, Spain
| | - G Selva
- Centre for Biomedical Research in the Mental Health Network (CIBERSAM), Madrid, Spain
- Teaching Unit of Psychiatry and Psychological Medicine, Department of Medicine, University of Valencia, INCLIVA Health Research Institute, Valencia, Spain
| |
Collapse
|
7
|
Carrasco G, Morillas J, Calizaya M, Baeza I, Molina R, Meije Y. ICU decision making based on Living Systematic Review strategy during SARS-CoV-2 pandemic. Results of a prospective case serie. Medicina Intensiva (English Edition) 2020. [PMCID: PMC7519393 DOI: 10.1016/j.medine.2020.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
8
|
Carrasco G, Morillas J, Calizaya M, Baeza I, Molina R, Meije Y. [ICU decision making based on Living Systematic Review strategy during SARS-CoV-2 pandemic. Results of a prospective case serie]. Med Intensiva 2020; 44:516-519. [PMID: 32653236 PMCID: PMC7287417 DOI: 10.1016/j.medin.2020.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 05/31/2020] [Accepted: 06/01/2020] [Indexed: 12/11/2022]
Affiliation(s)
- G Carrasco
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España.
| | - J Morillas
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - M Calizaya
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - I Baeza
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - R Molina
- Servicio de Medicina Intensiva, SCIAS Hospital de Barcelona, Barcelona, España
| | - Y Meije
- Grupo UCI-Covidem, SCIAS Hospital de Barcelona, Barcelona, España
| |
Collapse
|
9
|
Saieh C, Cordero IT, Baeza I, Rodriguez E, Hernandez C. Manual Intermittent Peritoneal Dialysis: A Successful Alternative to CAPD in Developing Countries. Perit Dial Int 2020. [DOI: 10.1177/089686088500500319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- C.A. Saieh
- ICU Nurse Renal and Intensive Care Units Luis Calvo Mac Kenna Children's Hosp. Antonio Varas 360 Santiago 9, Chile
| | - I. T. Cordero
- ICU Nurse Renal and Intensive Care Units Luis Calvo Mac Kenna Children's Hosp. Antonio Varas 360 Santiago 9, Chile
| | - I. Baeza
- ICU Nurse Renal and Intensive Care Units Luis Calvo Mac Kenna Children's Hosp. Antonio Varas 360 Santiago 9, Chile
| | - E. Rodriguez
- ICU Nurse Renal and Intensive Care Units Luis Calvo Mac Kenna Children's Hosp. Antonio Varas 360 Santiago 9, Chile
| | - C. Hernandez
- ICU Nurse Renal and Intensive Care Units Luis Calvo Mac Kenna Children's Hosp. Antonio Varas 360 Santiago 9, Chile
| |
Collapse
|
10
|
Badia M, Montserrat N, Serviá L, Baeza I, Bello G, Vilanova J, Rodríguez-Ruiz S, Trujillano J. Complicaciones graves en la intubación orotraqueal en cuidados intensivos: estudio observacional y análisis de factores de riesgo. Med Intensiva 2015; 39:26-33. [DOI: 10.1016/j.medin.2014.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 12/12/2013] [Accepted: 01/02/2014] [Indexed: 11/28/2022]
|
11
|
Pina-Camacho L, Diaz-Caneja C, Garcia-Prieto J, Parellada M, Castro-Fornieles J, Gonzalez-Pinto A, Bombin I, Graell M, Otero S, Rapado-Castro M, Janssen J, Baeza I, Del Pozo F, Desco M, Arango C. EPA-0882 - Prediction of diagnosis of early-onset schizophrenia spectrum disorders using support vector machines. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78212-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
12
|
Martínez Díaz-Caneja C, Piqueras R, Nieto I, Pina-Camacho L, Janssen J, Merchán-Naranjo J, Fraguas D, De la Serna E, Baeza I, Castro-Fornieles J, Arango C. EPA-0863 - Progression of changes in brain structure and executive functions in children and adolescents with first-episode psychosis. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78194-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
13
|
Puig O, Penadés R, Baeza I, De la Serna E, Sánchez-Gistau V, Lázaro L, Bernardo M, Castro-Fornieles J. Assessment of real-world daily-living skills in early-onset schizophrenia trough the Life Skills Profile scale. Schizophr Res 2013; 145:95-100. [PMID: 23384737 DOI: 10.1016/j.schres.2012.12.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 12/21/2012] [Accepted: 12/26/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Adolescents with early-onset schizophrenia (EOS) have marked deficits in their functional outcome. However, few short and reliable instruments for assessing real-world functioning have been specifically validated in EOS. The Life Skills Profile (LSP) is a brief scale widely used in schizophrenia and considered one of the optimal instruments for assessing real-world daily living skills. The purpose of this study was to examine the usefulness and the feasibility of the LSP to assess daily living skills in EOS. METHODS The sample included 53 clinically and pharmacologically stabilized adolescent patients with EOS and 53 healthy adolescents. Content review of the scale and internal consistency analysis were conducted in the EOS group. A subgroup of 30 patients was re-assessed over a 10-day interval to establish the test-retest reliability. Measures of functional outcome were used to assess convergent validity, and measures of intelligence and symptoms were used to assess divergent validity. Discriminant validity was analyzed through logistic analysis and the receiver-operating characteristic curve. RESULTS The LSP and its subscales showed high reliability, adequate internal consistency and adequate convergent and divergent validity. The LSP was also found to be a sensitive instrument for detecting differences between patients and healthy adolescents, correctly classifying 84% of the sample. The estimated area under the curve was 0.925 (95% CI 0.875-0.976). CONCLUSIONS The LSP showed adequate psychometric characteristics in adolescents with EOS and appeared to be a valid, reliable and time-efficient instrument for use in clinical practice and research settings to assess real-world daily-living skills in EOS.
Collapse
Affiliation(s)
- O Puig
- Department of Child and Adolescent Psychiatry and Psychology, SGR 1119, Hospital Clínic Universitari, Barcelona, Spain.
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Bombin I, Mayoral M, Castro-Fornieles J, Gonzalez-Pinto A, de la Serna E, Rapado-Castro M, Barbeito S, Parellada M, Baeza I, Graell M, Payá B, Arango C. Neuropsychological evidence for abnormal neurodevelopment associated with early-onset psychoses. Psychol Med 2013; 43:757-768. [PMID: 22831788 DOI: 10.1017/s0033291712001535] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The longitudinal neuropsychological study of first-episode early-onset psychosis (EOP) patients, whose brain maturation is still in progress at the time of illness onset, provides a unique opportunity to compare their cognitive development with that of healthy subjects, in search of specific patterns resulting from the interaction between neurodevelopmental processes and the presence of psychotic disorders. Method Seventy-five first-episode EOP patients (schizophrenia n = 35; bipolar disorder n = 17; other forms of psychosis n = 23) with a mean age of 15.53 years were assessed with a neuropsychological battery that included measures of attention, working memory, memory and executive functions within 6 months following the onset of the first psychotic symptom (baseline) and 2 years later. Psychotic symptoms were assessed at both times with the Positive and Negative Symptom Scale (PANSS). Seventy-nine healthy subjects matched for age and education served as controls. RESULTS EOP patients showed significant cognitive impairment at both baseline and the 2-year follow-up, with no significant differences between diagnostic groups at either time. Both healthy controls and EOP patients improved in all cognitive measures, except for patient working memory. Improvement in patient attention lost significance after controlling for psychotic symptom reduction. No significant time/diagnosis interaction was found among patients (p > 0.405). CONCLUSIONS Cognitive impairment in EOP is already present at the first episode, and cognitive development seems to be arrested early in EOP patients compared to their healthy peers, at least for some cognitive functions. These and previous similar results support the neurodevelopmental hypothesis of psychosis.
Collapse
Affiliation(s)
- I Bombin
- Department of Psychology, Universidad de Oviedo, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Oviedo, Spain.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Mayoral M, Bombín I, Castro-Fornieles J, González-Pinto A, Otero S, Parellada M, Moreno D, Baeza I, Graell M, Rapado M, Arango C. Longitudinal study of neurological soft signs in first-episode early-onset psychosis. J Child Psychol Psychiatry 2012; 53:323-31. [PMID: 22023091 DOI: 10.1111/j.1469-7610.2011.02475.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND In recent decades, the assessment of neurological soft signs (NSS) in patients with psychosis has become a subject of special interest. The study of the progression of NSS during adolescence will provide valuable information about the role of NSS as endophenotypes or biomarkers and about brain development at a stage in which brain maturation has not yet been completed. METHODS Neurological soft signs were assessed in a sample of 110 first episodes of early-onset psychosis (EOP) and 98 healthy children and adolescents at two different times in a 2-year follow-up period. RESULTS Patients with EOP showed more NSS than controls both at baseline (p < .001) and the 2-year follow-up (p < .001). No differences were found in the number of signs among the different diagnostic subgroups (schizophrenia, bipolar disorder, and other psychoses). When we examined the changes in NSS over the follow-up, the reduction of NSS in the patients was greater than the controls for 'Motor coordination' (p = .032), 'Others' (p < .001), and 'Total score' (p < .001) of the NES. CONCLUSION Despite the greater reduction of NSS in patients than in controls along the follow-up, patients still have more neurological signs than healthy controls; therefore, these signs may be considered a trait marker. NSS do not seem to be specific to schizophrenia as they are present in different EOPs.
Collapse
Affiliation(s)
- M Mayoral
- Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Baeza I, De Castro NM, Giménez-Llort L, De la Fuente M. Ovariectomy, a model of menopause in rodents, causes a premature aging of the nervous and immune systems. J Neuroimmunol 2010; 219:90-9. [PMID: 20096467 DOI: 10.1016/j.jneuroim.2009.12.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Revised: 12/16/2009] [Accepted: 12/18/2009] [Indexed: 11/17/2022]
Abstract
Ovariectomy in rodents is a good model for mimicking human ovarian hormone loss. This work studies the consequences of ovariectomy on the nervous and immune systems in the context of biological aging. Ovariectomy accelerates the process of aging by impairing the sensorimotor abilities (with loss of muscular vigor and impaired equilibrium and traction capacities) and the exploratory capacities (with reduction of vertical exploratory activity). It also leads to a premature immunosenescence with regard to chemotaxis index, lymphoproliferative response and natural killer activity, parameters investigated in the spleen and axillary nodes. Therefore, ovariectomy deteriorates homeostasis and may be a model of premature aging.
Collapse
Affiliation(s)
- I Baeza
- Department of Physiology, Faculty of Biology, Complutense University of Madrid, Madrid, Spain
| | | | | | | |
Collapse
|
17
|
Baeza I, Verdoy JA, Villanueva-Oller J, Villanueva RJ. ROI-based procedures for progressive transmission of digital images: A comparison. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.mcm.2009.05.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Parellada M, Fraguas D, Bombín I, Otero S, Castro-Fornieles J, Baeza I, Gonzalez-Pinto A, Graell M, Soutullo C, Paya B, Arango C. Insight correlates in child- and adolescent-onset first episodes of psychosis: results from the CAFEPS study. Psychol Med 2009; 39:1433-1445. [PMID: 19091160 DOI: 10.1017/s0033291708004868] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The correlates of insight in early-onset psychosis have received little previous attention. METHOD We studied clinical correlates of insight in a sample of 110 adolescent recent-onset psychosis patients (mean age 15.53 years; psychotic symptoms present for <6 months). Insight was measured with the Scale to Assess Unawareness of Mental Disorder (SUMD) at baseline, 6 months and 12 months follow-up. RESULTS Insight improved over the early phases of the illness, in parallel with psychopathological improvement. Poor insight at baseline and 6 months correlated with poor functioning at 6 and 12 months respectively. Schizophrenia patients had poorer insight than patients with bipolar disorder at 6 and 12 months but not at baseline. Logistic and linear regressions were used to predict 12-month diagnoses and functioning based on insight measurements. Baseline awareness of illness was a significant predictor for diagnosis [odds ratio (OR) 1.4, 95% confidence interval (CI) 1.05-1.97]. Treatment compliance at 6 months did not correlate with baseline SUMD subscores, but correlated with insight into having a disorder (Spearman's rho=0.21, p=0.039), its consequences (Spearman's rho=0.28, p=0.006) and the need for treatment (Spearman's rho=0.26, p=0.012) at 6 months. The 'attribution of symptoms' dimension of insight is poorly correlated with other insight dimensions and with other clinical variables. CONCLUSIONS Poor insight correlates with symptom severity and global functioning but also has some trait value for schizophrenia, which is apparent once acute psychotic symptomatology is not prominent. A multi-dimensional approach to the assessment of insight is necessary, as different dimensions are influenced by different factors.
Collapse
Affiliation(s)
- M Parellada
- Adolescent Unit, Department of Psychiatry, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
|
20
|
Fraguas D, Reig S, Desco M, Rojas-Corrales O, Gibert-Rahola J, Parellada M, Moreno D, Castro-Fornieles J, Graell M, Baeza I, Gonzalez-Pinto A, Otero S, Arango C. Oxidative cell damage is related to the enlargement of the lateral ventricles in children and adolescents with first episode schizophrenia. Eur Psychiatry 2008. [DOI: 10.1016/j.eurpsy.2008.01.787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
21
|
Salgado-Pineda P, Caclin A, Baeza I, Junqué C, Bernardo M, Blin O, Fonlupt P. Schizophrenia and frontal cortex: where does it fail? Schizophr Res 2007; 91:73-81. [PMID: 17303390 DOI: 10.1016/j.schres.2006.12.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2006] [Revised: 12/20/2006] [Accepted: 12/21/2006] [Indexed: 10/23/2022]
Abstract
Schizophrenia is characterized by cognitive, social, and emotional impairments and by psychotic symptoms. Neuroimaging studies have reported abnormalities within the prefrontal cortex and it has been hypothesized that schizophrenia results from poor or miswired anatomical/functional connections. We have compared the functional connectivity within the frontal cortex in control and schizophrenic subjects during the realization of a Continuous Performance Task. The connectivity pattern within the frontal cortex was uncovered by the analysis of the correlation matrix computed from the fMRI time series in frontal areas for 14 schizophrenic patients and 14 control subjects. In control subjects, the right dorsolateral prefrontal cortex (DLFCr) activity correlated i) positively with the left dorsolateral prefrontal cortex and the posterior part of the supplementary motor area, ii) negatively with the medial and anterior/inferior part of the frontal cortex. In the schizophrenic group, these relations were abolished or strongly lowered. The negative relation between the DLFCr and the medial frontal cortex has been proposed to play a key role in setting a harmonious balance between the direction of attention to the external world and the expression of the individual believes and self-referential activities, and therefore, the impaired relation of right DLFCr with other frontal areas could explain a distorted perception of external world in relation with internal motivations.
Collapse
Affiliation(s)
- P Salgado-Pineda
- Institut des Neurosciences Cognitives de la Méditerranée, Faculté de Médecine, Université de la Méditerranée, UMR 6193 CNRS, Marseille, F-13385, France
| | | | | | | | | | | | | |
Collapse
|
22
|
Campos B, Chames M, Lantry JM, Bill JP, Eis A, Brockman D, Neil J, Tischner E, Barton J, Wong C, Schwemberger S, Cornelius J, Myatt L, Baeza I, Hnat M. Determination of Non-bilayer Phospholipid Arrangements and their Antibodies in Placentae and Sera of Patients with Hypertensive Disorders of Pregnancy. Placenta 2006; 27:215-24. [PMID: 16338467 DOI: 10.1016/j.placenta.2005.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2004] [Revised: 01/14/2005] [Accepted: 01/14/2005] [Indexed: 11/26/2022]
Abstract
Studies suggest that preeclampsia (PE) originates in the placenta and is associated with deficient trophoblast invasion of spiral arteries. The direct cause remains unknown, but preeclampsia is often associated with circulating factors that can induce generalized endothelial dysfunction. Antiphospholipid antibodies (APA) in circulation are also associated with vascular diseases. Although the quantification of APA is not currently used as a prognostic of the risk of PE, studies suggest that thrombophilias play a role in PE pathogenesis. In fact, the pathology of placentae from PE and Antiphospholipid syndrome patients is similar; atherosis, thrombosis and infarction, and endothelium activation represent the pathological mechanisms. We identified a new antibody which recognizes non-bilayer phospholipid arrangements (NPA) in membrane models and in cell membranes in vivo, and which triggered an autoimmune-like disease in mice. We evaluated the presence of NPA in the placentae and in sera, and whether NPA induced NPA antibodies in patients with hypertensive disorders of pregnancy (HDP). Results showed increased levels of NPA in the syncytiotrophoblast, extravillous cytotrophoblast, syncytial knots and the amnion epithelial cell membranes of the placenta, as well as increases in NPA and NPA antibodies in sera from HDP patients, when compared with controls. This suggests that NPA derived from placenta could be one of multiple factors associated with pregnancy pathologies.
Collapse
Affiliation(s)
- B Campos
- Department of Obstetrics and Gynecology, College of Medicine, University of Cincinnati, 231 Albert Sabin, Cincinnati, OH 45267-0526, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Mané A, Baeza I, Morer A, Lázaro ML, Bernardo M. Neuroleptic malignant syndrome associated with risperidone in a male with early-onset schizophrenia. J Child Adolesc Psychopharmacol 2005; 15:844-5. [PMID: 16379503 DOI: 10.1089/cap.2005.15.844] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
24
|
Zazueta C, Ramírez J, García N, Baeza I. Cardiolipin regulates the activity of the reconstituted mitochondrial calcium uniporter by modifying the structure of the liposome bilayer. J Membr Biol 2003; 191:113-22. [PMID: 12533778 DOI: 10.1007/s00232-002-1047-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2002] [Indexed: 10/27/2022]
Abstract
Reconstitution of mitochondrial calcium transport activity requires the incorporation of membrane proteins into a lipidic ambient. Calcium uptake has been measured previously using Cytochrome oxidase vesicles. The enrichment of these vesicles with cardiolipin, an acidic phospholipid that is found only in the inner mitochondrial membrane of eukaryotic cells, strongly inhibits calcium transport, in remarkable contrast with the activation effect that cardiolipin exerts upon other mitochondrial transporters and enzymes. The relation of the inactivation of calcium transport to the physical state of the bilayer was studied by following the polarization changes of 1,6-diphenyl-1,3,5-hexatriene (DPH) and by flow cytometry in the cardiolipin-enriched liposomes with incorporated mitochondrial solubilized proteins. Non-bilayer molecular arrangements in the cardiolipin-supplemented liposomes, detected by flow cytometry, may produce the fluidity changes observed by fluorescence polarization of DPH. Fluidity changes correlate with the abolition of calcium uptake, but have no effect on the establishment of a membrane potential in the vesicles required for calcium transport activity. Changes in the membrane structure and uniporter function are observed in the combined presence of cardiolipin and calcium leading to a modified lipid configuration.
Collapse
Affiliation(s)
- C Zazueta
- Departamento de Bioquímica, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No.1, México 04080, D.F., México.
| | | | | | | |
Collapse
|
25
|
Rodríguez-Páez L, Juárez-Sanchez M, Antúnez-Solís J, Baeza I, Wong C. Alpha-asarone inhibits HMG-CoA reductase, lowers serum LDL-cholesterol levels and reduces biliary CSI in hypercholesterolemic rats. Phytomedicine 2003; 10:397-404. [PMID: 12834005 DOI: 10.1078/0944-7113-00274] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Our results showed that alpha-asarone was an inhibitor of hepatic HMG-CoA reductase and that the administration of alpha-asarone at 80 mg/kg body wt. for 8 days decreased serum cholesterol by 38% (p < 0.001) in hypercholesterolemic rats. This alpha-asarone treatment affected mainly the serum LDL-cholesterol levels, leaving serum HDL-cholesterol lipoproteins unaffected, with a consequent decrease of 74% in the LDL/HDL ratio. In addition, alpha-asarone especially stimulated bile flow in hypercholesterolemic rats (60%), increasing the secretion of bile salts, phospholipids and bile cholesterol. The drug also reduced the cholesterol levels of gallbladder bile, whereas the concentration of phospholipids and bile salts increased only slightly, leading to a decrease in the cholesterol saturation index (CSI) of bile in the hypercholesterolemic rats. This CSI decrease and the increase in bile flow induced by alpha-asarone may account for the cholelitholytic effect of alpha-asarone. It seems that alpha-asarone induced clearance of cholesterol from the bloodstream and that the excess of hepatic cholesterol provided by LDL-cholesterol is diverted to bile sterol secretion via a bile choleresis process. The inhibition of HMG-CoA reductase and the increase in bile flow induced by alpha-asarone, as well as the decrease in the CSI, could then explain the hypocholesterolemic and cholelitholytic effects of alpha-asarone.
Collapse
Affiliation(s)
- L Rodríguez-Páez
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México City, México
| | | | | | | | | |
Collapse
|
26
|
Abstract
The synthesis of putrescine was accomplished by decarboxylation of L-ornithine when this amino acid was heated in aqueous solution and in the absence of oxygen. Chromatographic, radioisotopic, and enzymatic techniques were used to demonstrate that one mole of non-radioactive putrescine and one mole of 14CO2 was formed during the heating of L-(l-14C)-ornithine. This work indicates that the synthesis of putrescine can occur starting with ornithine and in conditions that are presumed could have existed on the primitive Earth. The possible significance of these results in the prebiotic molecular evolution is briefly discussed.
Collapse
Affiliation(s)
- C Wong
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, México DF
| | | | | | | | | | | |
Collapse
|
27
|
Baeza I, Salvà J, Bernardo M. Cotard's syndrome in a young male bipolar patient. J Neuropsychiatry Clin Neurosci 2000; 12:119-20. [PMID: 10678525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
|
28
|
Abstract
Some authors have described the combined use of ECT and psychotropic drugs, emphasizing possible interactions and synergisms of this combined therapy. We are unaware of reports of the concurrent use of the new antidepressant venlafaxine with ECT. The goals of our study were to assess the possible effects of venlafaxine on seizure length during ECT and the possible cardiovascular effects of this combined treatment. Nine severely ill, depressed patients were treated simultaneously with bilateral ECT and venlafaxine 150 mg/day and were compared with nine control, depressed subjects taking tricyclic antidepressants (TCA) and ECT. No patients had prolonged seizures and no spontaneous/tardive seizures outside ECT were observed. With regard to mean seizure length, no statistically significant differences were observed between the control group and the venlafaxine group. Neither significant increases in arterial blood pressure nor electrocardiographic recording abnormalities were found in venlafaxine patients when compared with the tricyclic group. Even though the small number of patients used is a significant limitation of this study, we found that combined venlafaxine and ECT appears to be safe when used in depression.
Collapse
Affiliation(s)
- M Bernardo
- Psychiatry Department, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Hospital Clínic i Provincial, Universitat de Barcelona, Spain
| | | | | | | | | |
Collapse
|
29
|
Aguilar L, Ortega-Pierres G, Campos B, Fonseca R, Ibáñez M, Wong C, Farfán N, Naciff JM, Kaetzel MA, Dedman JR, Baeza I. Phospholipid membranes form specific nonbilayer molecular arrangements that are antigenic. J Biol Chem 1999; 274:25193-6. [PMID: 10464237 DOI: 10.1074/jbc.274.36.25193] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hexagonal phase (H(II))-preferring lipids such as phosphatidate, cardiolipin, and phosphatidylserine form nonbilayer molecular arrangements in lipid bilayers. While their presence in biological membranes has not been established, in vitro studies suggest that alterations in membrane properties modify their function. In this study, antiphospholipid monoclonal antibodies were developed against nonbilayer structures. One of the monoclonal antibodies identifies nonplanar surfaces in liposomes and in membranes of cultured cells. These results are the first evidence that natural membranes maintain a fragile balance between bilayer and nonbilayer lipid arrangements. Therefore, these antibodies can be used to evaluate the role of H(II)-preferring lipids in the modulation of membrane activities. Our studies demonstrated that nonplanar surfaces are highly immunogenic. Although these structures are normally transient, their formation can be stabilized by temperature variations, drugs, antibiotics, apolar peptides, and divalent cations. Our studies demonstrated that abnormal exposure of nonbilayer arrangements may induce autoimmune responses as found in the antiphospholipid syndrome.
Collapse
Affiliation(s)
- L Aguilar
- Department of Biochemistry, National School of Biological Science, Instituto Politécnico Nacional, Apartado Postal 4-897, Admon. 4, México City 06401, México
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Wong C, Rodríguez-Páez L, Nogueda B, Pérez A, Baeza I. Selective inhibition of the sperm-specific lactate dehydrogenase isozyme-C4 by N-isopropyl oxamate. Biochim Biophys Acta 1997; 1343:16-22. [PMID: 9428654 DOI: 10.1016/s0167-4838(97)00090-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In the present study, we demonstrated that the attachment of the nonpolar isopropylic carbon chain in the nitrogen of oxamate, converted this competitive inhibitor of LDH isozymes into a powerful selective inhibitor of mouse LDH-C4. The comparative study of the inhibitory effect of oxamate and N-isopropyl oxamate on mouse LDH isozymes pointed out that the isopropylic carbon chain conferred upon N-isopropyl oxamate a high affinity for LDH-C4 and a marked decrease in the affinity for the other isozymes since oxamate showed more inhibitory effect on LDH-1 (Ki = 0.06 mM) and LDH-5 (Ki = 0.08 mM), and less inhibitory effect on LDH-C4 (Ki = 0.25 mM). On the other hand, N-isopropyl oxamate showed the highest inhibitory effect on LDH-C4 (Ki = 0.014 mM) and poor inhibitory effect on LDH-1 (Ki = 0.4 mM) and LDH-5 (Ki = 0.8 mM). Apparently, the enzymatic inactivation proceeded through a reversible binding of N-isopropyl oxamate, facilitated by nonpolar interactions with a hydrophobic region present only in the active site of mouse LDH-C4, resulting in a selective inhibition of this isozyme in comparison with the other LDH isozymes. N-isopropyl oxamate was also a powerful competitive inhibitor of LDH-C4 (Ki = 0.015 mM) compared with oxamate (Ki = 0.35 mM), using alpha-ketoisocaproate as a substrate.
Collapse
Affiliation(s)
- C Wong
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México DF, Mexico
| | | | | | | | | |
Collapse
|
31
|
Baeza I, Aguilar L, Santiago R, Ibáñez M, Wong C. Electron microscopy and biological properties of pBR322 DNA condensed with the trivalent cations spermidine and hexammine cobalt (III). Rev Latinoam Microbiol 1997; 39:47-56. [PMID: 10932714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Electron microscopy and the biological properties of susceptibility to DNase I, genetic transcription, and transformation of pBR322 DNA compacted with spermidine or hexammine cobalt (III), were analyzed in order to characterize the association of DNA in its compacted form with these two different trivalent cations. Spermidine and hexammine cobalt (III) produced an average 4-fold reduction of the DNA perimeter in compact DNA forms, which were doughnut-shaped toroids and cylinders. Both compacted DNAs were resistant to the hydrolytic activity of DNase I. However, spermidine-condensed pBR322 DNA was 10-fold and 4 to 6-fold more active in transcription and transformation, respectively, than naked pBR322. I. Hexammine cobalt (III)-condensed pBR322 was inactive in both biological properties. An inhibitory effect of hexammine cobalt (III) on RNA polymerase and genetic transformation activities was discarded because at higher ionic strength, in which DNA is not compacted by hexammine cobalt (III), transcription and transformation were similar to those observed with naked DNA. This information showed that the interaction of hexammine cobalt (III) with the DNA converted the pBR322 DNA into an inert molecule. In contrast, pBR322 did not loose its biological properties after its interaction with the polyamine spermidine; i.e., experimental condensation of pBR322 DNA by spermidine produced compacted DNA that is more similar to compact native genomes than relaxed DNA. These experiments led us to conclude that spermidine-condensed DNA can be used to study the roll of the native supercoiling of DNA in the regulation of genetic replication and transcription, as well as to study the mechanisms that allow the accessibility of the supercoiled or condensed DNA substrate for enzymes.
Collapse
MESH Headings
- Cations/pharmacology
- Cobalt/pharmacology
- DNA, Bacterial/drug effects
- DNA, Bacterial/genetics
- DNA, Bacterial/ultrastructure
- DNA, Circular/drug effects
- DNA, Circular/genetics
- DNA, Circular/ultrastructure
- DNA, Recombinant/drug effects
- DNA, Recombinant/genetics
- DNA, Recombinant/ultrastructure
- Escherichia coli/genetics
- Genetic Vectors/drug effects
- Genetic Vectors/genetics
- Genetic Vectors/ultrastructure
- Microscopy, Electron
- Nucleic Acid Conformation/drug effects
- Osmolar Concentration
- Spermidine/pharmacology
- Transcription, Genetic
- Transformation, Genetic
Collapse
Affiliation(s)
- I Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas del IPN, México, D.F
| | | | | | | | | |
Collapse
|
32
|
Ibáñez M, Gariglio P, Chávez P, Santiago R, Wong C, Baeza I. Spermidine-condensed DNA and cone-shaped lipids improve delivery and expression of exogenous DNA transfer by liposomes. Biochem Cell Biol 1996; 74:633-43. [PMID: 9018370 DOI: 10.1139/o96-068] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A new liposome system containing spermidine-condensed DNA and negative cone-forming lipids designed to improve gene delivery and expression is described. The compacted nature of condensed DNA forms permitted a higher extent of encapsulation of DNA in liposomes. These vesicles contained fusogenic cone-shaped lipids to increase fusion between liposomes and membranes to enhance the amount of DNA delivery into the cells. In addition, the insensitivity of condensed DNA forms to endonucleases and restriction enzymes, as well as their higher activity in both replication and transcription, improve foreign DNA expression. These improvements in condensed DNA encapsulation in liposomes, transfer into the cells, and DNA expression increase the number of transfected cells and produce a higher level of gene expression in most transfected cells. This is reflected in the 60-fold cell culture transfection increase compared with traditional liposome transfection systems. This liposome system does not cause any apparent damage to the transfected cells; furthermore, the liposomes are small, 400-500 nm, and have negative surface charges that can prolong their circulation half-lives in vivo, permitting their use for in vivo gene therapy applications.
Collapse
Affiliation(s)
- M Ibáñez
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas del IPN, México, D.F
| | | | | | | | | | | |
Collapse
|
33
|
Baeza I, Aguilar L, Alvarado-Alemán F, Soto C, Escobar-Gutiérrez A, Mondragón R, González S, Ibáñez M, Wong C. Identification of phosphatidate nonlamellar phases on liposomes by flow cytometry. Biochem Cell Biol 1995; 73:289-97. [PMID: 8829376 DOI: 10.1139/o95-036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
This study is the first report that demonstrates nonlamellar arrangements, or lipidic particles, of phosphatidate inserted in the lipid bilayer of liposomes using polyclonal antibodies from mice and flow cytometry. Sera immunoreactivity was analyzed using liposomes that displayed smooth bilayers of phosphatidate particles, as shown by electron microscopy. This cytofluorimetric analysis showed that immune mice sera have a specific immunoreactivity with the phosphatide particles formed by Mn2+, which also cross-reacted with those formed by Ca2+ and with cardiolipin particles formed by Mn2+. In addition, these immune sera hardly reacted with smooth bilayered liposomes, independently of the lipid composition studied. Thus, this new methodology can be applied to demonstrate nonlamellar molecular arrangements in biological membranes.
Collapse
Affiliation(s)
- I Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas del IPN, México, D.F
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Baeza I, Wong C, Mondragón R, González S, Ibáñez M, Farfán N, Argüello C. Transbilayer diffusion of divalent cations into liposomes mediated by lipidic particles of phosphatidate. J Mol Evol 1994; 39:560-8. [PMID: 7807545 DOI: 10.1007/bf00160401] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Liposomes formed from egg-yolk phosphatidylcholine:egg-yolk phosphatidate (molar ratio 2:1) containing pBR322 DNA and DNase I were induced to form, with divalent cations, bilayer/nonbilayer phase transitions of phosphatidate which allowed cation diffusion into liposomes; then cation diffusion was measured by the activation of the hydrolysis of DNase I on DNA. The formation of phosphatidate transitions on liposomes was demonstrated by freeze-fracture and 31P NMR, and a direct correlation between the formation of phosphatidate transitions and the transbilayer diffusion of cations was found: only Ca2+ and Mn2+, which induce phase transitions, were able to penetrate liposomes and triggered the DNase I activity; in addition, Ca2+ at higher concentrations (10 mM) caused fusion of liposomes, whereas Mn2+ did not, suggesting that transitions induced by Mn2+ participated only in the diffusion of this ion; furthermore, Mg2+ neither formed phase transitions nor triggered the enzymatic activity. The liposomes studied represent more dynamic structures that can form phosphatidate structures involved in both (1) the interchange of divalent cations with the surroundings, thereby modulating encapsulated enzymes, and (2) the fusion of lipid vesicles probably implicated in the enrichment of liposomal content in the early Precambian Earth.
Collapse
Affiliation(s)
- I Baeza
- Departmento de Bioquímica, Escuela Nacional de Ciencias Biológicas del IPN, Mexico, D.F
| | | | | | | | | | | | | |
Collapse
|
35
|
Baeza I, Ibáñez M, Wong C, Chávez P, Gariglio P, Oró J. Possible prebiotic significance of polyamines in the condensation, protection, encapsulation, and biological properties of DNA. ORIGINS LIFE EVOL B 1992; 21:225-42. [PMID: 1668678 DOI: 10.1007/bf01809858] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Some properties of DNA condensed with spermidine have been compared with the properties of DNA condensed with Co3+(NH3)6 to determine whether condensation of DNA with these trivalent cations protects DNA against the action of DNase I and increases transcription and encapsulation of DNA into liposomes. It was shown that DNA condensed with Co3+(NH3)6 was resistant to the action of the endonuclease DNase I such as DNA condensed with spermidine was. However, DNA condensed with Co3+(NH3)6 was significantly less active in transcription with the E. coli RNA polymerase than DNA-spermidine condensed forms. In addition, it was demonstrated that both compacted forms of DNA were more efficiently encapsulated into neutral liposomes; however, negatively, charged liposomes were scarcely formed in the presence of DNA condensed with Co3+(NH3)6. These experiments and the well documented properties of polyamines increasing the resistance to radiations and hydrolysis of nucleic acids, as well as their biological activities, such as replication, transcription, and translation, together with the low concentration of Co3+ in the environment, lead us to propose spermidine as a plausible prebiotic DNA condensing agent rather than Co3+ and the basic proteins proposed by other authors. Then, we consider the possible role and relevance of the polyamine-nucleic acids complexes in the evolution of life.
Collapse
Affiliation(s)
- I Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, México, D.F
| | | | | | | | | | | |
Collapse
|
36
|
Baeza I, Ibáñez M, Santiago JC, Argüello C, Wong C, Oró J. Diffusion of Mn2+ ions into liposomes mediated by phosphatidate and monitored by the activation of an encapsulated enzymatic system. J Mol Evol 1990; 31:453-61. [PMID: 2125320 DOI: 10.1007/bf02102071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Transbilayer diffusion of Mn2+ ions occurred in liposomes formed from dipalmitoyl-phosphatidylcholine or egg-yolk phosphatidylcholine and egg-yolk phosphatidate (molar ratio 2:1) containing DNA and DNase I within their aqueous compartments. Cation diffusion was demonstrated by the hydrolytic activity of DNase I, activated by the Mn2+ ions that diffused into the vesicles, and this was confirmed by light scattering. Phosphatidate, a cone-shaped lipid which has been synthesized under simulated prebiotic conditions, was necessary for cation diffusion across the liposome membranes. Such liposomes represent a simple precellular system that interchanges cations with the surroundings and provides a microenvironment for enzymatic reactions, as evidenced by the hydrolysis of DNA by DNase I inside these closed lipid compartments.
Collapse
Affiliation(s)
- I Baeza
- Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, México, D.F. México
| | | | | | | | | | | |
Collapse
|
37
|
Baeza I, Gariglio P, Rangel LM, Chavez P, Cervantes L, Arguello C, Wong C, Montañez C. Electron microscopy and biochemical properties of polyamine-compacted DNA. Biochemistry 1987; 26:6387-92. [PMID: 3322379 DOI: 10.1021/bi00394a012] [Citation(s) in RCA: 105] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We have obtained polyamine-compacted DNA and analyzed it by electron microscopy employing the method described by Dubochet, suitable for the study of complexes in which the main interactions are of ionic character. In addition, we have developed a simple biochemical method, based on the action of pancreatic DNase I, to demonstrate the condensation of DNA with spermidine. DNA-spermidine complexes are resistant to the action of DNase I, and there is a strong correlation between the presence of condensed DNA forms, both as toroids and as cylinders, and the insensitivity to DNase I activity. We have also shown that pBR322 DNA-spermidine complexes are transcriptionally active in the presence of Escherichia coli RNA polymerase. This supports the data concerning the biological activity of spermidine-condensed DNA.
Collapse
Affiliation(s)
- I Baeza
- Department of Biochemistry, Escuela Nacional de Ciencias Biologicas del IPN, Mexico, DF
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Baeza I, Ibañez M, Lazcano A, Santiago C, Arguello C, Wong C, Oró J. Liposomes with polyribonucleotides as model of precellular systems. ORIGINS LIFE EVOL B 1987; 17:321-31. [PMID: 3627767 DOI: 10.1007/bf02386471] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A study of the encapsulation of poly(U) and poly(C) within liposomes made from dipalmitoylphosphatidyl choline (DPPC), from egg yolk phosphatidyl choline (PC), and from PC with cholesterol (CHOL) was made. The liposomes were prepared under anoxic conditions following the reverse-phase evaporation method. Determinations showed that 36 to 70% of the available lipids form liposomes and 2 to 5% of the polyribonucleotides can be entrapped by liposomes. The encapsulation of polyribonucleotides has also been measured in the presence of urea, cyanamide and Zn++, condensing agents in prebiotic polymerization reactions. DPPC and PC:CHOL liposomes were formed in the presence of 1.0 M urea, although no PC liposomes were formed. The three types of liposomes were readily formed at 0.01 M urea, but in no case an enhancement of encapsulation efficiency of poly(U) was observed due to the presence of urea. Similar results were obtained with cyanamide. An enhanced encapsulation of poly(U) by the three types of liposomes was observed when Zn++ was in the range of 0.001 to 0.01 M. Poly(U) encapsulation was 15 to 25 times higher when liposomes were prepared from DPPC at 0.01 M Zn++. Similar results were obtained with poly(C). The advantages of DPPC-polyribonucleotide liposomes as precellular systems are discussed.
Collapse
|
39
|
Baeza I, Giono S, Santiago JC, Martínez F, Aquino C, Wong C. [Membrane protein profiles of different species of Haemophilus]. Rev Latinoam Microbiol 1987; 29:157-63. [PMID: 3438605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
40
|
Baeza I, Ibañez M, Santiago JC, Wong C, Lazcano A, Oró J. Studies on precellular evolution: the encapsulation of polyribonucleotides by liposomes. Adv Space Res 1986; 6:39-43. [PMID: 11537243 DOI: 10.1016/0273-1177(86)90273-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Liposomes are 5 to 50 micron vesicles with an internal aqueous environment, whose amphiphilic lipidic components self-assemble into systems with at least one double-layered membrane. Liposomes have been suggested as possible models of precellular systems formed in the early Archean Earth from lipids of non-enzymatic origin. Since it is generally accepted that RNA molecules preceded double-stranded DNA molecules as genetic material, we have studied the encapsulation of polyribonucleotides within liposomes made from dipalmitoyl phosphatidylcholine, and from egg yolk phosphatidylcholine to which cholesterol was added in some cases. The liposomes were prepared under anoxic conditions following the reverse phase evaporation method described by Szoka and Papahadjopoulos. Quantitative determinations show that approximately 50% of the available lipids form liposomes, and that up to 5% of the polyribonucleotides can be entrapped by them. We have also studied the encapsulation of polyribonucleotides in the presence of 1) urea and cyanamide, two non-electrolytes that have been used as prebiotic condensing agents, and 2) of Zn++ and Pb++, two cations employed in the non-enzymatic template-directed synthesis of polyribonucleotides from activated nucleotides.
Collapse
Affiliation(s)
- I Baeza
- Departamento de Bioquimica, Escuela Nacional de Ciencias Biologicas, Mexico DF
| | | | | | | | | | | |
Collapse
|
41
|
Baeza I, Carvajal EJ, Carvajal G. Virus-like particles of DNA-IgG designed to be used in genetic engineering. Rev Latinoam Microbiol 1974; 16:147-51. [PMID: 4610683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
42
|
Carvajal G, Baeza I, Carvajal EJ. Preparation of virus-like particles of DNA-IgG. Experientia 1973; 29:1299-301. [PMID: 4586179 DOI: 10.1007/bf01935128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|