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Auteur I. BAEZA |
Documents disponibles écrits par cet auteur (2)
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Brain structural trajectories in youth at familial risk for schizophrenia or bipolar disorder according to development of psychosis spectrum symptoms / G. SUGRANYES in Journal of Child Psychology and Psychiatry, 62-6 (June 2021)
[article]
Titre : Brain structural trajectories in youth at familial risk for schizophrenia or bipolar disorder according to development of psychosis spectrum symptoms Type de document : Texte imprimé et/ou numérique Auteurs : G. SUGRANYES, Auteur ; E. DE LA SERNA, Auteur ; D. ILZARBE, Auteur ; J. C. PARIENTE, Auteur ; R. BORRAS, Auteur ; S. ROMERO, Auteur ; M. ROSA, Auteur ; I. BAEZA, Auteur ; M. D. MORENO, Auteur ; M. BERNARDO, Auteur ; E. VIETA, Auteur ; Josefina CASTRO-FORNIELES, Auteur Article en page(s) : p.780-789 Langues : Anglais (eng) Mots-clés : Adolescent Bipolar Disorder/diagnostic imaging Brain/diagnostic imaging Cross-Sectional Studies Genetic Predisposition to Disease Humans Magnetic Resonance Imaging Psychotic Disorders/diagnostic imaging Schizophrenia/diagnostic imaging/genetics High-risk studies bipolar psychosis schizophrenia structural MRI Index. décimale : PER Périodiques Résumé : BACKGROUND: The evaluation of child and adolescent offspring of patients with schizophrenia (SzO) or bipolar disorder (BpO) may help understand changes taking place in the brain in individuals at heightened risk for disease during a key developmental period. METHODS: One hundred twenty-eight individuals (33 SzO and 46 BpO, considered jointly as 'Familial High Risk' (FHR), and 49 controls) aged 6-17 years underwent clinical, cognitive and neuroimaging assessment at baseline, 2- and 4-year follow-up. Twenty FHR participants (11 SzO and 9 BpO) developed psychotic spectrum symptoms during follow-up, while 59 FHR participants did not. Magnetic resonance imaging was performed on a 3Tesla scanner; cortical surface reconstruction was applied to measure cortical thickness, surface area and grey matter volume. RESULTS: FHR participants who developed psychotic spectrum symptoms over time showed greater time-related mean cortical thinning than those who did not and than controls. By subgroups, this effect was present in both BpO and SzO in the occipital cortex. At baseline, FHR participants who developed psychotic spectrum symptoms over time had smaller total surface area and grey matter volume than those who did not and than controls. Over time, all FHR participants showed less longitudinal decrease in surface area than controls. In those who developed psychotic spectrum symptoms over time, this effect was driven by BpO, while in those who did not, this was due to SzO, who also showed less grey matter volume reduction. CONCLUSION: The emergence of psychotic spectrum symptoms in FHR was indexed by smaller cross-sectional surface area and progressive cortical thinning. Relative preservation of surface area over time may signal different processes according to familial risk. These findings lay the foundation for future studies aimed at stratification of FHR youth. En ligne : http://dx.doi.org/10.1111/jcpp.13321 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456
in Journal of Child Psychology and Psychiatry > 62-6 (June 2021) . - p.780-789[article] Brain structural trajectories in youth at familial risk for schizophrenia or bipolar disorder according to development of psychosis spectrum symptoms [Texte imprimé et/ou numérique] / G. SUGRANYES, Auteur ; E. DE LA SERNA, Auteur ; D. ILZARBE, Auteur ; J. C. PARIENTE, Auteur ; R. BORRAS, Auteur ; S. ROMERO, Auteur ; M. ROSA, Auteur ; I. BAEZA, Auteur ; M. D. MORENO, Auteur ; M. BERNARDO, Auteur ; E. VIETA, Auteur ; Josefina CASTRO-FORNIELES, Auteur . - p.780-789.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 62-6 (June 2021) . - p.780-789
Mots-clés : Adolescent Bipolar Disorder/diagnostic imaging Brain/diagnostic imaging Cross-Sectional Studies Genetic Predisposition to Disease Humans Magnetic Resonance Imaging Psychotic Disorders/diagnostic imaging Schizophrenia/diagnostic imaging/genetics High-risk studies bipolar psychosis schizophrenia structural MRI Index. décimale : PER Périodiques Résumé : BACKGROUND: The evaluation of child and adolescent offspring of patients with schizophrenia (SzO) or bipolar disorder (BpO) may help understand changes taking place in the brain in individuals at heightened risk for disease during a key developmental period. METHODS: One hundred twenty-eight individuals (33 SzO and 46 BpO, considered jointly as 'Familial High Risk' (FHR), and 49 controls) aged 6-17 years underwent clinical, cognitive and neuroimaging assessment at baseline, 2- and 4-year follow-up. Twenty FHR participants (11 SzO and 9 BpO) developed psychotic spectrum symptoms during follow-up, while 59 FHR participants did not. Magnetic resonance imaging was performed on a 3Tesla scanner; cortical surface reconstruction was applied to measure cortical thickness, surface area and grey matter volume. RESULTS: FHR participants who developed psychotic spectrum symptoms over time showed greater time-related mean cortical thinning than those who did not and than controls. By subgroups, this effect was present in both BpO and SzO in the occipital cortex. At baseline, FHR participants who developed psychotic spectrum symptoms over time had smaller total surface area and grey matter volume than those who did not and than controls. Over time, all FHR participants showed less longitudinal decrease in surface area than controls. In those who developed psychotic spectrum symptoms over time, this effect was driven by BpO, while in those who did not, this was due to SzO, who also showed less grey matter volume reduction. CONCLUSION: The emergence of psychotic spectrum symptoms in FHR was indexed by smaller cross-sectional surface area and progressive cortical thinning. Relative preservation of surface area over time may signal different processes according to familial risk. These findings lay the foundation for future studies aimed at stratification of FHR youth. En ligne : http://dx.doi.org/10.1111/jcpp.13321 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 Longitudinal study of neurological soft signs in first-episode early-onset psychosis / María MAYORAL in Journal of Child Psychology and Psychiatry, 53-3 (March 2012)
[article]
Titre : Longitudinal study of neurological soft signs in first-episode early-onset psychosis Type de document : Texte imprimé et/ou numérique Auteurs : María MAYORAL, Auteur ; I. BOMBIN, Auteur ; Josefina CASTRO-FORNIELES, Auteur ; Ana GONZALEZ-PINTO, Auteur ; Soraya OTERO, Auteur ; Mara PARELLADA, Auteur ; Dolores MORENO, Auteur ; I. BAEZA, Auteur ; Montserrat GRAELL, Auteur ; Marta RAPADO, Auteur ; Celso ARANGO, Auteur Année de publication : 2012 Article en page(s) : p.323-331 Langues : Anglais (eng) Mots-clés : Neurological soft signs children and adolescents psychosis neurodevelopment Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02475.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152
in Journal of Child Psychology and Psychiatry > 53-3 (March 2012) . - p.323-331[article] Longitudinal study of neurological soft signs in first-episode early-onset psychosis [Texte imprimé et/ou numérique] / María MAYORAL, Auteur ; I. BOMBIN, Auteur ; Josefina CASTRO-FORNIELES, Auteur ; Ana GONZALEZ-PINTO, Auteur ; Soraya OTERO, Auteur ; Mara PARELLADA, Auteur ; Dolores MORENO, Auteur ; I. BAEZA, Auteur ; Montserrat GRAELL, Auteur ; Marta RAPADO, Auteur ; Celso ARANGO, Auteur . - 2012 . - p.323-331.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 53-3 (March 2012) . - p.323-331
Mots-clés : Neurological soft signs children and adolescents psychosis neurodevelopment Index. décimale : PER Périodiques Résumé : 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. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02475.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152