Gisela Sugranyes

Gisela Sugranyes
IDIBAPS August Pi i Sunyer Biomedical Research Institute | IDIBAPS · Division of Clinical and Experimental Neuroscience

About

92
Publications
4,006
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1,417
Citations
Citations since 2017
34 Research Items
856 Citations
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2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140

Publications

Publications (92)
Article
Background: Offspring of patients diagnosed with Bipolar Disorder and Schizophrenia (Off-BDSZ) have a high genetic risk of developing a mental illness. The aim of this project is to develop and investigate the efficacy of an intervention aimed at this population, based on the concept of cognitive reserve. Methods: This is a multicenter randomized t...
Article
Full-text available
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 sym...
Article
Full-text available
First‐degree relatives of patients diagnosed with schizophrenia (SZ‐FDRs) show similar patterns of brain abnormalities and cognitive alterations to patients, albeit with smaller effect sizes. First‐degree relatives of patients diagnosed with bipolar disorder (BD‐FDRs) show divergent patterns; on average, intracranial volume is larger compared to co...
Article
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 impl...
Article
Introduction Intrinsic functional connectivity (iFC) of resting-state networks has been reported to be altered in schizophrenia, especially in fronto-temporal networks [1]. Our team have recently observed reduced connectivity in the right middle/inferior frontal gyrus (rIFG) within a network functionally related to language, in adolescents sufferin...
Article
Introduction Identification of individuals at ultra-high risk for psychosis (UHR) has the potential to help prevent or delay the onset of disease [1]. Structural MRI studies have revealed that UHR are characterized by cortical thickness (CTH) reductions in temporal, frontal and cingulate cortices in both cross-sectional and longitudinal comparisons...
Article
Full-text available
The aim of this is to describe psychopathology, functioning and symptom dimensions accounting for subthreshold manifestations and developmental status in child and adolescent offspring of parents with bipolar disorder (“high-risk offspring”). The study population comprised 90 high-risk offspring (HR-offspring) and 107 offspring of community control...
Article
Full-text available
Introducción: A pesar de que diferentes déficits nutricionales como el de ácido fólico se han asociado a la esquizofrenia y a otros trastornos psiquiátricos, se sabe poco sobre los posibles déficits de ácido fólico y vitamina B12 en niños y adolescentes con trastornos psiquiátricos. Objetivo: Describir los valores y posibles déficits de ácido fólic...
Article
Full-text available
Adults with psychotic disorders have abnormal connectivity of fronto-temporal networks. However, whether these abnormalities are present in adolescents with early psychosis has not been fully assessed. One-hundred and thirty-nine adolescents aged 12–18 underwent resting-state functional magnetic resonance imaging and diffusion tensor imaging. Follo...
Article
Background: Studies in child and adolescent offspring of patients with schizophrenia or bipolar disorders may help understand the influence of neurodevelopmental factors on the premorbid phenotype of these disorders. Aims: To assess whether a combination of neurodevelopmental factors discriminates between young offspring of patients with schizop...
Article
Background: Schizophrenia (SZ) and bipolar disorder (BD) are considered neurobiological disorders which share some clinical, cognitive and neuroimaging characteristics. Studying child and adolescent offspring of patients diagnosed with bipolar disorder (BDoff) or schizophrenia (SZoff) is regarded as a reliable method for investigating early altera...
Article
Objective Cortical surface area and thickness abnormalities have been observed in patients with schizophrenia and bipolar disorders; however, no study thus far has examined cortical morphologic measurements in children and adolescents at genetic risk for the disorders comparatively. Method One hundred thirty-seven participants, including 36 offspr...
Article
Schizophrenia (SZ) and bipolar disorder (BD) are severe mental diseases associated with cognitive impairment, mood disturbance, and psychosis. Both disorders are highly heritable and share a common genetic background. The present study assesses, for the first time, differences in genotype frequencies of polymorphisms located in genes involved in ne...
Article
Full-text available
Schizophrenia (SZ) and bipolar disorder (BD) share clinical features, genetic risk factors and neuroimaging abnormalities. There is evidence of disrupted connectivity in resting state networks in patients with SZ and BD and their unaffected relatives. Resting state networks are known to undergo reorganization during youth coinciding with the period...
Article
Full-text available
There is limited evidence on the effects of age and sex on intrinsic connectivity of networks underlying cognition during childhood and adolescence. Independent Component Analysis was conducted in 113 subjects aged 7-18; the default mode, executive control, anterior salience, basal ganglia, language and visuospatial networks were identified. The ef...
Article
Background: Early clinical manifestations predating schizophrenia (SZ) and bipolar disorder (BP) have not been fully characterized. Child offspring studies are a valuable opportunity to study the natural history of the illness from its earliest stages. However, there is limited evidence assessing young offspring of SZ and BP simultaneously. We set...
Article
Paliperidone palmitate long-acting injection (PPLAI) is an atypical antipsychotic agent currently approved by the European Medicine Agency for the acute and maintenance treatment of schizophrenia in adults. However, there is no information so far on safety and effectiveness in patients under 18 years of age. We report on two clinical cases of adole...
Article
To analyse the underlying structure of the negative syndrome of schizophrenia as it is represented in the Brief Negative Symptom Scale. Cross-sectional, multicentre study, employing data from 190 evaluations. Exploratory factor analysis using the principal component analysis method. The three-component solution explained 77.4% of the total variance...
Article
There is increasing support toward the notion that schizophrenia and bipolar disorder share neurodevelopmental underpinnings, although areas of divergence remain. We set out to examine gray matter volume characteristics of child and adolescent offspring of patients with schizophrenia or bipolar disorder comparatively. In this 2-center study, magnet...
Article
Shared psychotic disorder is a clinical condition in which people in close association share delusions of similar content. While the most common cases of shared psychotic disorder involve 2 people, in some rare cases a larger number of individuals are affected, with few reports in children. We present a case of a child involved in a folie à trois,...
Article
Negative symptoms prevalent in schizophrenia are associated with poor outcome. Developing new instruments to identify new treatments was highlighted at the NIMH-MATRICS Consensus Development Conference on Negative Symptoms. The new Brief Negative Symptoms scale (BNSS) demonstrated strong psychometric properties, but there is a need for validating i...
Conference Paper
Background: Bipolar disorder (BD) is a severe mental disorder with a strong genetic component. The assessment of child and adolescent offspring of patients diagnosed with BD (BDoff) provides an opportunity to investigate vulnerability factors and the first abnormalities associated with the disorder. Previous literature in child and adolescent BDoff...
Article
Increased basal cortisol secretion has been associated with heightened clinical risk for psychosis, and among at-risk individuals, has been variably related to positive and mood symptoms, as well as clinical outcome. Basal salivary cortisol secretion was assessed in 33 patients at clinical high risk (CHR) for psychosis (21 medication-free and 12 ta...
Article
Background: Schizophrenia (SZ) and bipolar disorder (BD) may overlap in etiology and phenomenology but differ with regard to emotional processing. We used facial affect as a probe for emotional processing to determine whether there are diagnosis-related differences between SZ and BD in the function of the underlying neural circuitry. Method: Fun...
Article
Dysconnectivity between brain regions is thought to underlie the cognitive abnormalities that characterise schizophrenia (SZ). Consistent with this notion functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) studies in SZ have reliably provided evidence of abnormalities in functional integration and in white matter connec...
Article
Whether a specific lesion such as mesial temporal sclerosis (MTS) increases the risk for a mood disorder in epilepsy remains subject to debate. Despite evidence of limbic system involvement in the genesis of emotional symptoms, recent studies fail to support an association between depression and MTS. We aimed to clarify this controversial issue by...
Article
Full-text available
Impaired social cognition is a cardinal feature of Autism Spectrum Disorders (ASD) and Schizophrenia (SZ). However, the functional neuroanatomy of social cognition in either disorder remains unclear due to variability in primary literature. Additionally, it is not known whether deficits in ASD and SZ arise from similar or disease-specific disruptio...
Article
Early cannabis use has consistently been associated with an increased risk for the later development of psychosis. Studies suggest that Conduct Disorder (CD) is more common amongst young people who later go on to develop psychosis. CD has been associated with greater and earlier cannabis use in general population samples. Based on this evidence, we...
Article
We aim to investigate whether temporal origin of epilepsy increases the risk of developing a psychiatric disorder and more specifically a major depressive disorder. The lack of standardized diagnostic instruments and the methodologic differences between studies highlight the fact that this issue warrants further, systematic, study. Three-hundred ei...
Article
Despite the additional complications associated with alcohol misuse in bipolar populations, it is generally the case that studies exploring neurocognitive aspects of bipolar disorder specifically exclude patients with alcohol abuse or dependence. Given the role of cognitive dysfunctions in overall illness outcome, this study addressed the neurocogn...
Article
Observational studies have reported earlier onset of psychosis in schizophrenic patients with a history of cannabis use. Earlier age of onset of schizophrenia has been associated with a poorer outcome. We aimed to examine whether cannabis use determined an earlier onset of schizophrenia in a sample of first episode patients, in an area with one of...
Article
Human amygdalar activation has been reported during facial emotion recognition (FER) studies, mostly using fast temporal resolution techniques (fMRI, H(2)(15)O PET or MEG). The (18)FDG PET technique has never been previously applied to FER studies. We decided to test whether amygdala response during FER tasks could be assessed with this technique....
Article
There is a dearth of research focusing on factors associated with suicide attempts. High rates of atypical depression have been reported in studies including unipolar and bipolar II patients. In this study, the association between suicide attempt and atypical depression, in addition to other major risk factors, was evaluated in 390 bipolar I and II...