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1.
J Psychiatr Res ; 172: 351-359, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38447356

RESUMEN

Cognitive Behavioral Therapy (CBT) is among the gold-standard psychotherapeutic interventions for the treatment of psychiatric disorders, including bipolar disorder (BD). While the clinical response of CBT in patients with BD has been widely investigated, its neural correlates remain poorly explored. Therefore, this scoping review aimed to discuss neuroimaging studies on CBT-based interventions in bipolar populations. Particular attention has been paid to similarities and differences between studies to inform future research. The literature search was conducted on PubMed, PsycINFO, and Web of Science databases in June 2023, identifying 307 de-duplicated records. Six studies fulfilled the inclusion criteria and were reviewed. All of them analyzed functional brain activity data. Four studies showed that the clinical response to CBT was associated with changes in the functional activity and/or connectivity of prefrontal and posterior cingulate cortices, temporal parietal junction, amygdala, precuneus, and insula. In two additional studies, a peculiar pattern of baseline activations in the prefrontal cortex, hippocampus, amygdala, and insula predicted post-treatment improvements in depressive symptoms, emotion dysregulation, and psychosocial functioning, although CBT-specific effects were not shown. These results suggest, at the very preliminary level, the potential of CBT-based interventions in modulating neural activity and connectivity of patients with BD, especially in regions ascribed to emotional processing. Nonetheless, the discrepancies between studies concerning aims, design, sample characteristics, and CBT and fMRI protocols do not allow conclusions to be drawn. Further research using multimodal imaging techniques, better-characterized BD samples, and standardized CBT-based interventions is needed.


Asunto(s)
Trastorno Bipolar , Terapia Cognitivo-Conductual , Humanos , Trastorno Bipolar/diagnóstico por imagen , Trastorno Bipolar/terapia , Terapia Cognitivo-Conductual/métodos , Emociones/fisiología , Corteza Prefrontal , Giro del Cíngulo , Imagen por Resonancia Magnética
2.
Epidemiol Psychiatr Sci ; 33: e8, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38356360

RESUMEN

AIMS: Patients with affective and non-affective psychoses show impairments in both the identification and discrimination of facial affect, which can significantly reduce their quality of life. The aim of this commentary is to present the strengths and weaknesses of the available instruments for a more careful evaluation of different stages of emotion processing in clinical and experimental studies on patients with non-affective and affective psychoses. METHODS: We reviewed the existing literature to identify different tests used to assess the ability to recognise (e.g. Ekman 60-Faces Test, Facial Emotion Identification Test and Penn Emotion Recognition Test) and to discriminate emotions (e.g. Face Emotion Discrimination Test and Emotion Differentiation Task). RESULTS: The current literature revealed that few studies combine instruments to differentiate between different levels of emotion processing disorders. The lack of comprehensive instruments that integrate emotion recognition and discrimination assessments prevents a full understanding of patients' conditions. CONCLUSIONS: This commentary underlines the need for a detailed evaluation of emotion processing ability in patients with non-affective and affective psychoses, to characterise the disorder at early phases from the onset of the disease and to design rehabilitation treatments.


Asunto(s)
Trastornos Psicóticos Afectivos , Calidad de Vida , Humanos , Expresión Facial , Emociones , Reconocimiento en Psicología
3.
Healthcare (Basel) ; 11(13)2023 Jun 25.
Artículo en Inglés | MEDLINE | ID: mdl-37444679

RESUMEN

There is growing evidence to support the potential benefit of e-Health interventions targeting psychosocial outcomes and/or pain-related psychological variables for chronic pain conditions, including fibromyalgia syndrome (FMS). This systematic review aims at providing an in-depth description of the available e-Health psychological and/or multicomponent interventions for patients with FMS. Searches were made in PubMed, Cochrane, Web of Science, and PsycINFO up to 15 May 2023, finally including twenty-six articles. The quality of the included articles was medium-high (average quality assessment score of 77.1%). 50% of studies were randomized controlled trials (RCTs) (n = 13), and the majority of them focused exclusively on adult patients with FMS (n = 23) who were predominantly female. Four categories of e-Health modalities were identified: web-based (n = 19), mobile application (m-Health) (n = 3), virtual reality (VR) (n = 2), and video consulting (n = 2). Interventions were mainly based on the cognitive behavioral therapy (CBT) approach (n = 14) and mostly involved contact with a healthcare professional through different digital tools. Overall, a growing number of psychological and multicomponent interventions have been created and delivered using digital tools in the context of FMS, showing their potentiality for improving psychosocial outcomes and pain-related psychological variables. However, some digital tools resulted as underrepresented, and the literature on this topic appears highly heterogeneous precluding robust conclusions.

4.
J Affect Disord ; 338: 358-364, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37331381

RESUMEN

BACKGROUND: Cognitive deficits are a core feature of bipolar disorder (BD) that persist during the euthymic phase and affect global functioning. However, nowadays, there is no consensus on the optimal tool to capture cognitive deficits in BD. Therefore, this review aims to examine the psychometric properties of tools commonly used to assess cognitive functioning in BD. METHODS: Literature search was conducted on PubMed and Web of Science databases on August 1, 2022 and on April 20, 2023, yielding 1758 de-duplicated records. Thirteen studies fulfilled the inclusion criteria and were included in the review. RESULTS: All tools examined showed acceptable-to-good psychometric properties suggesting that both brief cognitive screeners and comprehensive batteries may be appropriate for detecting or monitoring cognitive changes in BD. LIMITATIONS: Methodological differences between the included studies precluded a direct comparison of the results. Further research is needed to investigate the psychometric properties of cognitive tools that assess also affective and social cognition. CONCLUSIONS: The tools examined appear sensitive enough to distinguish between BD patients with versus without cognitive deficits, however, an optimal tool has not yet been identified. The applicability and clinical utility of the tools may depend on multiple factors such as available resources. That said, web-based instruments are expected to become the first-choice instrument for cognitive screening as they can be applied on a large scale and at an affordable cost. As for second-level assessment instruments, the BACA shows robust psychometric properties and tests both affective and non-affective cognition.


Asunto(s)
Trastorno Bipolar , Disfunción Cognitiva , Humanos , Trastorno Bipolar/diagnóstico , Trastorno Bipolar/psicología , Psicometría , Pruebas Neuropsicológicas , Cognición , Disfunción Cognitiva/diagnóstico
5.
Artículo en Inglés | MEDLINE | ID: mdl-36900982

RESUMEN

Fibromyalgia (FM) is a chronic disease characterized by a heterogeneous set of physical and psychological conditions. The chronic experience of disability felt by patients and the impact on quality of life (QoL) of the disease may worsen the cognitive reappraisal ability and contribute to maintaining an altered pain modulation mechanism. This paper presents the study protocol of an INTEGRated psychotherapeutic interventiOn on the management of chronic pain in patients with fibromyalgia (INTEGRO). The aim of the study is to investigate the efficacy of an integrated psychotherapeutic intervention focused on pain management on QoL and pain perception, in a pilot sample of 45 FM patients with idiopathic chronic pain. The contribution of perceived therapeutic relationship (alliance) and physiological attunement, in both the patient and therapist, will be considered as possible mediators of intervention efficacy. Attachment dimensions, traumatic experiences, difficulties in emotion regulation, mindfulness attitude and psychophysiological profile will also be considered as covariates. The objectives are to evaluate longitudinally if patients will experience an increase in QoL perception (primary endpoint), pain-managing self-efficacy and emotion-regulation abilities as well as a reduction in pain intensity (secondary endpoints), considering the mediating role of perceived therapeutic alliance and physiological attunement in both the patient and therapist.


Asunto(s)
Dolor Crónico , Fibromialgia , Humanos , Fibromialgia/terapia , Dolor Crónico/complicaciones , Calidad de Vida/psicología , Manejo del Dolor/métodos , Cognición
6.
Mol Psychiatry ; 28(3): 1190-1200, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36604602

RESUMEN

Psychosis onset is a transdiagnostic event that leads to a range of psychiatric disorders, which are currently diagnosed through clinical observation. The integration of multimodal biological data could reveal different subtypes of psychosis onset to target for the personalization of care. In this study, we tested the existence of subgroups of patients affected by first-episode psychosis (FEP) with a possible immunopathogenic basis. To do this, we designed a data-driven unsupervised machine learning model to cluster a sample of 127 FEP patients and 117 healthy controls (HC), based on the peripheral blood expression levels of 12 psychosis-related immune gene transcripts. To validate the model, we applied a resampling strategy based on the half-splitting of the total sample with random allocation of the cases. Further, we performed a post-hoc univariate analysis to verify the clinical, cognitive, and structural brain correlates of the subgroups identified. The model identified and validated two distinct clusters: 1) a FEP cluster characterized by the high expression of inflammatory and immune-activating genes (IL1B, CCR7, IL12A and CXCR3); 2) a cluster consisting of an equal number of FEP and HC subjects, which did not show a relative over or under expression of any immune marker (balanced subgroup). None of the subgroups was related to specific symptoms dimensions or longitudinal diagnosis of affective vs non-affective psychosis. FEP patients included in the balanced immune subgroup showed a thinning of the left supramarginal and superiorfrontal cortex (FDR-adjusted p-values < 0.05). Our results demonstrated the existence of a FEP patients' subgroup identified by a multivariate pattern of immunomarkers involved in inflammatory activation. This evidence may pave the way to sample stratification in clinical studies aiming to develop diagnostic tools and therapies targeting specific immunopathogenic pathways of psychosis.


Asunto(s)
Encéfalo , Trastornos Psicóticos , Humanos , Encéfalo/metabolismo , Inflamación , Trastornos Psicóticos/patología , Biomarcadores , Aprendizaje Automático
7.
J Affect Disord ; 323: 171-175, 2023 02 15.
Artículo en Inglés | MEDLINE | ID: mdl-36435402

RESUMEN

BACKGROUND: Bipolar disorder (BD) is a psychiatric condition characterized by alternating episodes of mania and depression frequently associated with cognitive impairments. BD is associated with brain alterations in fronto-temporal and limbic networks. Recent conceptualizations view BD as a neurodegenerative disorder characterized by progressive deterioration of grey and white matter (GM, WM) volumes and accelerated brain ageing. Therefore, we conducted a review gathering neuroimaging evidence about neurodegenerative processes in BD. METHODS: A literature search was conducted on the PubMed, Scopus and Web of Science databases in September 2021. After title and abstract screening of the retrieved records, 19 studies that met our inclusion criteria were included in the review. RESULTS: The available evidence suggests the presence of a progressive reduction of GM volumes at the whole-brain level and in the amygdala, prefrontal regions and the anterior cingulate cortex. Conversely, WM lesions and alterations seem to emerge only in the early phases of the condition masking the effects of normal ageing. Lastly, machine learning models indicate that the gap between predicted and chronological brain age differs considerably between healthy controls and BD patients, as the latter are characterized by larger gaps. LIMITATIONS: The included studies had cross-sectional study design, small sample sizes and heterogeneous methodology, and lack of control for pharmacological treatment. CONCLUSIONS: BD seems to be associated with generalized age-related structural GM volumes reductions and functional brain alterations thus suggesting the presence of neurodegenerative processes. Future systematic reviews and meta-analyses should be conducted to quantify the magnitude of brain ageing-related effects in BD.


Asunto(s)
Trastorno Bipolar , Humanos , Trastorno Bipolar/complicaciones , Estudios Transversales , Imagen por Resonancia Magnética/métodos , Encéfalo , Envejecimiento
8.
Artículo en Inglés | MEDLINE | ID: mdl-36554275

RESUMEN

BACKGROUND: Fibromyalgia Syndrome (FMS) is characterized by chronic widespread pain, fatigue, unrefreshing sleep and cognitive dysfunction. Depressive and manic symptoms are often reported in FMS patients' history. The aim of this study was to evaluate the prevalence of bipolar spectrum symptoms (BSS) and to correlate these with quality of life (QoL) scores and antidepressant treatment. METHODS: From October 2017 to July 2018, a battery of QoL questionnaires (FIQ, PSQI and SF-12) was administered to 120 FMS patients after a clinical examination. The MOODS-SR lifetime questionnaire was then remotely administered to the patients included in the study. RESULTS: The presence of depressive and manic lifetime symptoms was found, in line with the results of the available literature. A correlation was found between the history of depressive symptoms and the severity of FIQ and SF-12 scores. Despite a low statistical strength, a trend toward a correlation between a history of manic symptoms and SNRI treatment was detected. CONCLUSIONS: The correlation between the MOOD-depressive domains and poor QoL is in line with the available literature. Further studies are needed to corroborate these findings and to elucidate the relationship between manic symptoms and SNRI treatment.


Asunto(s)
Trastorno Bipolar , Fibromialgia , Inhibidores de Captación de Serotonina y Norepinefrina , Humanos , Calidad de Vida/psicología , Trastorno Bipolar/complicaciones , Trastorno Bipolar/epidemiología , Psicometría , Encuestas y Cuestionarios
9.
Transl Psychiatry ; 12(1): 449, 2022 10 16.
Artículo en Inglés | MEDLINE | ID: mdl-36244980

RESUMEN

Intensive cognitive tasks induce inefficient regional and network responses in schizophrenia (SCZ). fMRI-based studies have naturally focused on gray matter, but appropriately titrated visuo-motor integration tasks reliably activate inter- and intra-hemispheric white matter pathways. Such tasks can assess network inefficiency without demanding intensive cognitive effort. Here, we provide the first application of this framework to the study of white matter functional responses in SCZ. Event-related fMRI data were acquired from 28 patients (nine females, mean age 43.3, ±11.7) and 28 age- and gender-comparable controls (nine females, mean age 42.1 ± 10.1), using the Poffenberger paradigm, a rapid visual detection task used to induce intra- (ipsi-lateral visual and motor cortex) or inter-hemispheric (contra-lateral visual and motor cortex) transfer. fMRI data were pre- and post-processed to reliably isolate activations in white matter, using probabilistic tractography-based white matter tracts. For intra- and inter-hemispheric transfer conditions, SCZ evinced hyper-activations in longitudinal and transverse white matter tracts, with hyper-activation in sub-regions of the corpus callosum primarily observed during inter-hemispheric transfer. Evidence for the functional inefficiency of white matter was observed in conjunction with small (~50 ms) but significant increases in response times. Functional inefficiencies in SCZ are (1) observable in white matter, with the degree of inefficiency contextually related to task-conditions, and (2) are evoked by simple detection tasks without intense cognitive processing. These cumulative results while expanding our understanding of this dys-connection syndrome, also extend the search of biomarkers beyond the traditional realm of fMRI studies of gray matter.


Asunto(s)
Esquizofrenia , Sustancia Blanca , Adulto , Encéfalo/fisiología , Comunicación , Cuerpo Calloso/diagnóstico por imagen , Femenino , Humanos , Imagen por Resonancia Magnética/métodos , Persona de Mediana Edad , Esquizofrenia/diagnóstico por imagen , Sustancia Blanca/diagnóstico por imagen
10.
Epidemiol Psychiatr Sci ; 31: e70, 2022 Oct 03.
Artículo en Inglés | MEDLINE | ID: mdl-36189787

RESUMEN

Cognitive deficits are prevalent in bipolar disorder even during the euthymic phase, having a negative impact on global functioning and quality of life. As such, more and more mental health professionals agree that neuropsychological assessment should be considered an essential component of the clinical management of bipolar patients. However, no gold standard tool has been established so far. According to bipolar disorder experts targeting cognition, appropriate cognitive tools should be brief, easy to administer, cost-effective and validated in the target population. In this commentary, we critically appraised the strengths and limitations of the tools most commonly used to assess cognitive functioning in bipolar patients, both for screening and diagnostic purposes.


Asunto(s)
Trastorno Bipolar , Trastornos del Conocimiento , Trastorno Bipolar/epidemiología , Cognición , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/epidemiología , Trastornos del Conocimiento/etiología , Humanos , Pruebas Neuropsicológicas , Calidad de Vida
11.
PLoS One ; 17(8): e0272873, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35951619

RESUMEN

Language production has often been described as impaired in psychiatric diseases such as in psychosis. Nevertheless, little is known about the characteristics of linguistic difficulties and their relation with other cognitive domains in patients with a first episode of psychosis (FEP), either affective or non-affective. To deepen our comprehension of linguistic profile in FEP, 133 patients with FEP (95 non-affective, FEP-NA; 38 affective, FEP-A) and 133 healthy controls (HC) were assessed with a narrative discourse task. Speech samples were systematically analyzed with a well-established multilevel procedure investigating both micro- (lexicon, morphology, syntax) and macro-linguistic (discourse coherence, pragmatics) levels of linguistic processing. Executive functioning and IQ were also evaluated. Both linguistic and neuropsychological measures were secondarily implemented with a machine learning approach in order to explore their predictive accuracy in classifying participants as FEP or HC. Compared to HC, FEP patients showed language production difficulty at both micro- and macro-linguistic levels. As for the former, FEP produced shorter and simpler sentences and fewer words per minute, along with a reduced number of lexical fillers, compared to HC. At the macro-linguistic level, FEP performance was impaired in local coherence, which was paired with a higher percentage of utterances with semantic errors. Linguistic measures were not correlated with any neuropsychological variables. No significant differences emerged between FEP-NA and FEP-A (p≥0.02, after Bonferroni correction). Machine learning analysis showed an accuracy of group prediction of 76.36% using language features only, with semantic variables being the most impactful. Such a percentage was enhanced when paired with clinical and neuropsychological variables. Results confirm the presence of language production deficits already at the first episode of the illness, being such impairment not related to other cognitive domains. The high accuracy obtained by the linguistic set of features in classifying groups support the use of machine learning methods in neuroscience investigations.


Asunto(s)
Trastornos del Lenguaje , Trastornos Psicóticos , Comprensión , Humanos , Lenguaje , Pruebas Neuropsicológicas , Trastornos Psicóticos/psicología
12.
Psychiatry Res Neuroimaging ; 326: 111518, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36037703

RESUMEN

Brain incidental findings (IFs) are unexpected brain abnormalities detected by a structural magnetic resonance (MRI) examination. We conducted a study to assess whether brain IFs are associated with first-episode psychosis (FEP) and chronic psychosis (affective vs. non-affective) compared to healthy controls (HC). Chi-squared analyses were run to compare the frequency of several IFs across groups. Logistic regression analyses were run to explore the association between group and IFs, accounting for sex, age, MRI field strength. We observed a higher frequency of most IFs in both FEP and chronic psychosis groups compared to HC, however most of the chi-squared tests did not reach significance. Patients with FEP and chronic psychosis were 3-4 times more likely to show deep white matter hyperintensities (WMH) than HC. Patients with FEP and affective chronic psychosis were 3-4 times more likely to show ventricular asymmetries than HC. All chronic patients were more likely to show periventricular WMH, liquoral spaces enlargements and ventricular system enlargements respectively. Our results suggest that deep WMH and ventricular asymmetries are associated with both the early and the chronic stages of psychosis, thus representing potential vulnerability factors already present before the onset of the symptoms, possibly due to neurodevelopmental insults.

13.
Compr Psychiatry ; 117: 152335, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35841657

RESUMEN

OBJECTIVES: Cognitive deficits in Bipolar Disorder (BD) are significant enough to have an impact on daily functioning. Therefore, appropriate tools must be used to improve our understanding of the nature and severity of cognitive deficits in BD. In this study, we aimed to compare the cognitive profiles of patients with BD and healthy controls (HC) applying the Italian version of the Brief Assessment of Cognition in Affective Disorders (BAC-A). METHODS: This cross-sectional study included 127 patients with BD and 134 HC. The participants' cognitive profiles were evaluated using the Italian version of the BAC-A, which assesses verbal memory, working memory, motor speed, verbal fluency, attention & processing speed, executive functions, and two new measures of affective processing. The BAC-A raw scores were corrected using the normative data for the Italian population. In addition, we explored whether intelligence quotient (IQ) and specific clinical variables would predict the BAC-A affective, non-affective, and total composite scores of patients with BD and HC. RESULTS: HC performed better than patients with BD in all BAC-A subtests (all p < .001), except for subtests of the Affective Interference Test. (p ≥ .05). The effect sizes varied in magnitude and ranged between d = 0.02 and d = 1.27. In patients with BD, lower BAC-A composite scores were predicted by a higher number of hospitalizations. There was a significant association between IQ and BAC-A composite scores in both bipolar patients and HC. CONCLUSIONS: The Italian BAC-A is sensitive to the cognitive impairments of patients with BD in both affective and non-affective cognitive domains.


Asunto(s)
Trastorno Bipolar , Humanos , Trastorno Bipolar/complicaciones , Trastorno Bipolar/diagnóstico , Trastorno Bipolar/psicología , Estudios Transversales , Cognición , Pruebas Neuropsicológicas , Trastornos del Humor/diagnóstico , Trastornos del Humor/psicología , Memoria a Corto Plazo , Italia
14.
Patient Educ Couns ; 105(9): 2871-2879, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35715300

RESUMEN

OBJECTIVE: To describe the Emoty-Com training, its impact on medical students' attitudes towards doctors' emotions and to explore the association between students' empathy, emotional intelligence (EI), and attachment style (AS) with post-training performance scores. METHODS: The 16-hour Emoty-Com training was delivered to all second-year medical students of Verona and Milan (Italy) Universities. At pre-training, students filled out three questionnaires assessing empathy, AS and EI and responded to three questions on attitudes towards doctors' emotions in the doctor-patient encounter. The same three questions and a final evaluation test were proposed at post-training. RESULTS: 264 students participated in the study. The training reduced students' worry about managing emotions during doctor-patient relationships. Gender was associated with specific subscales of empathy, EI, and AS. Final performance scores were associated with students' attitudes towards emotions but not with empathy, EI, and AS. CONCLUSION: The Emoty-Com training increased students' self-efficacy in handling their own emotions during consultations. Students' performance scores were related to their attitude towards doctors' emotions in clinical encounters. PRACTICE IMPLICATIONS: The Emoty-Com training suggests ways to teach and evaluate emotion-handling skills for medical students. Possible links between empathy, EI, AS, and the attitudes towards doctors' emotions during the years of education are highlighted.


Asunto(s)
Empatía , Estudiantes de Medicina , Comunicación , Inteligencia Emocional , Emociones , Humanos , Facultades de Medicina , Estudiantes de Medicina/psicología , Encuestas y Cuestionarios
15.
Patient Educ Couns ; 105(9): 2880-2887, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35393226

RESUMEN

OBJECTIVE: To explore the association of emotional intelligence (EI) and attachment security (AS) with empathy dimensions in medical students by examining the mediating role of EI. METHODS: In a cross-sectional design, the Interpersonal Reactivity Index (IRI), the Emotional Quotient Inventory (EQ-i), the Attachment Style Questionnaire (ASQ), and demographic questions were administrated to second-year medical students of two medical schools in Northern Italy. RESULTS: 253 medical students (56.13% female), aged 19-29, participated in this study. AS positively correlated to Empathic Concern (r = 0.17, p = 0.008) and Perspective Taking (r = 0.24, p < 0.001), and negatively to Personal Distress (r = -0.33, p < 0.001). Individuals with the same level of AS and a higher score on EQ-i had a higher score (ß = 0.072, p = 0.033) on empathy latent factor (at the basis of Empathic Concern and Perspective Taking) and a lower score (ß = -0.290, p < 0.001) on Personal Distress than those with a lower EQ-i score. CONCLUSION: This study shows that EI completely mediated the relationship between AS and empathy dimensions among medical students. PRACTICE IMPLICATIONS: EI training and workshop should be considered when designing educational interventions and programs to enhance empathy and decrease interpersonal distress in medical students.


Asunto(s)
Empatía , Estudiantes de Medicina , Estudios Transversales , Inteligencia Emocional , Femenino , Humanos , Masculino , Estudiantes de Medicina/psicología , Encuestas y Cuestionarios
16.
Genes (Basel) ; 13(3)2022 03 09.
Artículo en Inglés | MEDLINE | ID: mdl-35328036

RESUMEN

Impulsivity has been proposed as an endophenotype for bipolar disorder (BD); moreover, impulsivity levels have been shown to carry prognostic significance and to be quality-of-life predictors. To date, reports about the genetic determinants of impulsivity in mood disorders are limited, with no studies on BD individuals. Individuals with BD and healthy controls (HC) were recruited in the context of an observational, multisite study (GECOBIP). Subjects were genotyped for three candidate single-nucleotide polymorphisms (SNPs) (5-HTTLPR, COMT rs4680, BDNF rs6265); impulsivity was measured through the Italian version of the Barratt Impulsiveness Scale (BIS-11). A mixed-effects regression model was built, with BIS scores as dependent variables, genotypes of the three polymorphisms as fixed effects, and centers of enrollment as random effect. Compared to HC, scores for all BIS factors were higher among subjects with euthymic BD (adjusted ß for Total BIS score: 5.35, p < 0.001). No significant interaction effect was evident between disease status (HC vs. BD) and SNP status for any polymorphism. Considering the whole sample, BDNF Met/Met homozygosis was associated with lower BIS scores across all three factors (adjusted ß for Total BIS score: −10.2, p < 0.001). A significant 5-HTTLPR x gender interaction was found for the SS genotype, associated with higher BIS scores in females only (adjusted ß for Total BIS score: 12.0, p = 0.001). Finally, COMT polymorphism status was not significantly associated with BIS scores. In conclusion, BD diagnosis did not influence the effect on impulsivity scores for any of the three SNPs considered. Only one SNP­the BDNF rs6265 Met/Met homozygosis­was independently associated with lower impulsivity scores. The 5-HTTLPR SS genotype was associated with higher impulsivity scores in females only. Further studies adopting genome-wide screening in larger samples are needed to define the genetic basis of impulsivity in BD.


Asunto(s)
Trastorno Bipolar , Trastorno Bipolar/genética , Factor Neurotrófico Derivado del Encéfalo/genética , Catecol O-Metiltransferasa/genética , Femenino , Humanos , Conducta Impulsiva , Polimorfismo de Nucleótido Simple/genética , Proteínas de Transporte de Serotonina en la Membrana Plasmática
17.
Epidemiol Psychiatr Sci ; 31: e12, 2022 Feb 03.
Artículo en Inglés | MEDLINE | ID: mdl-35109957

RESUMEN

Early-life adverse events or childhood adversities (CAs) are stressors and harmful experiences severely impacting on a child's wellbeing and development. Examples of CAs include parental neglect, emotional and physical abuse and bullying. Even though the prevalence of CAs and their psychological effects in both healthy and psychiatric populations is established, only a paucity of studies have investigated the neurobiological firms associated with CAs in bipolar disorder (BD). In particular, the exact neural mechanisms and trajectories of biopsychosocial models integrating both environmental and genetic effects are still debated. Considering the potential impact of CAs on BD, including its clinical manifestations, we reviewed existing literature discussing the association between CAs and brain alterations in BD patients. Results showed that CAs are associated with volume alterations of several grey matter regions including the hippocampus, thalamus, amygdala and frontal cortex. A handful of studies suggest the presence of alterations in the corpus callosum and the pre-fronto-limbic connectivity at rest. Alterations in these regions of the brain of patients with BD are possibly due to the effect of stress produced by CAs, being hippocampus part of the hypothalamus-pituitary-adrenal axis and thalamus together with amygdala filtering sensory information and regulating emotional responses. However, results are mixed possibly due to the heterogeneity of methods and study design. Future neuroimaging studies disentangling between different types of CAs or differentiating between BD sub-types are needed in order to understand the link between CAs and BD.


Asunto(s)
Trastorno Bipolar , Trastorno Bipolar/diagnóstico por imagen , Encéfalo/diagnóstico por imagen , Niño , Sustancia Gris , Hipocampo , Humanos , Neuroimagen
18.
Schizophr Res ; 241: 14-23, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-35074528

RESUMEN

BACKGROUND: Alterations in insular grey matter (GM) volume has been consistently reported for affective and non-affective psychoses both in chronic and first-episode patients, ultimately suggesting that the insula might represent a good region to study in order to assess the longitudinal course of psychotic disorders. Therefore, in this longitudinal Magnetic Resonance Imaging (MRI) study, we aimed at further investigating the key role of insular volumes in psychosis. MATERIAL AND METHODS: 68 First-Episode Psychosis (FEP) patients, 68 patients with Schizophrenia (SCZ), 47 Bipolar Disorder (BD) patients, and 94 Healthy Controls (HC) were enrolled and underwent a 1.5 T MRI evaluation. A subsample of 99 subjects (10 HC, 23 BD, 29 SCZ, 37 FEP) was rescanned after 2,53 ± 1,68 years. The insular cortex was manually traced and then divided into an anterior and posterior portion. Group and correlation analyses were then performed both at baseline and at follow-up. RESULTS: At baseline, greater anterior and lower posterior insular GM volumes were observed in chronic patients. At follow-up, we found that FEP patients had a significant GM volume increase from baseline to follow-up, especially in the posterior insula whereas chronic patients showed a relative stability. Finally, significant negative correlations between illness severity and pharmacological treatment and insular GM volumes were observed in the whole group of psychotic patients. CONCLUSIONS: The longitudinal assessment of both chronic and first-episode patients allowed us to detect a complex pattern of GM abnormalities in selective sub-portions of insular volumes, ultimately suggesting that this structure could represent a key biological marker of psychotic disorders.


Asunto(s)
Trastornos Psicóticos , Esquizofrenia , Corteza Cerebral/diagnóstico por imagen , Sustancia Gris/diagnóstico por imagen , Humanos , Imagen por Resonancia Magnética/métodos , Trastornos Psicóticos/diagnóstico por imagen , Esquizofrenia/diagnóstico por imagen
19.
J Affect Disord ; 289: 66-73, 2021 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-33945916

RESUMEN

BACKGROUND: Psychopathological symptoms during euthymia in Bipolar Disorder (BD) affect quality of life and predispose to the occurrence of new acute episodes, however only few studies investigated potential risk-factors. This study aims to explore the association between childhood trauma (CT), lifetime stressful events (SLEs) and psychopathological symptoms in BD patients during euthymia and controls (HC). METHODS: A total of 261 participants (93 euthymic patients with BD, 168 HC) were enrolled. Generalized linear models and multiple logistic models were used to assess the association among the Symptom Check List-90-R (SCL-90-R), the Infancy Trauma Interview, the Paykel Life Events Scale. RESULTS: The rate of participants reporting CT was higher in BD (n=47; 53%) than HC (n=43; 30%) (p=0.001). The experience of neglect was strongly related to BD (OR 6.5; p=0.003). CT was associated to higher scores on the SCL-90-R subscales (all the subscales except Phobia). No effects of the interaction between CT and diagnosis were found on SCL-90-R. Finally, there was a main effect of CT on lifetime SLEs (p<.001), that was not associated with diagnosis (p=0.833), nor with the interaction between CT and diagnosis (p=0.624). LIMITATIONS: The cross-sectional design does not allow causal inferences; the exclusion of subjects reporting medical or psychiatric comorbidity limits generalizability. CONCLUSIONS: CT was associated both to psychopathological symptoms during euthymia and the lifetime SLEs, thus it may represent a vulnerability factor influencing the course of BD. Overall, these data contribute to overcome the limited evidences documenting the influence of environmental factors on euthymic phase in BD.


Asunto(s)
Trastorno Bipolar , Trastorno Bipolar/epidemiología , Estudios Transversales , Trastorno Ciclotímico , Voluntarios Sanos , Humanos , Calidad de Vida
20.
Front Psychol ; 12: 632999, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33897540

RESUMEN

Objective: To assess the psychological distress of healthcare providers (HCPs) working in the field of obstetrics during the coronavirus disease 2019 (COVID-19) pandemic and to identify factors associated with psychological distress at the individual, interpersonal, and organizational level. Design: Cross-sectional survey study. Setting: Four University hospitals in Italy. Participants: HCPs working in obstetrics, including gynecologists, residents in gynecology and obstetrics, and midwives. Methods: The 104-item survey Impatto PSIcologico COVID-19 in Ostetricia (IPSICO) was created by a multidisciplinary expert panel and administered to HCPs in obstetrics in May 2020 via a web-based platform. Main Outcome Measures: Psychological distress assessed by the General Health Questionnaire-12 (GHQ-12) included in the IPSICO survey. Results: The response rate to the IPSICO survey was 88.2% (503/570), and that for GHQ-12 was 84.4% (481/570). Just over half (51.1%; 246/481) of the GHQ-12 respondents reported a clinically significant level of psychological distress (GHQ-12 ≥3). Psychological distress was associated with either individual (i.e., female gender, stressful experience related to COVID-19, exhaustion, and the use of dysfunctional coping strategies), interpersonal (i.e., lower family support, limitations in interactions with colleagues), and organizational (i.e., reduced perception of protection by personal protective equipment, perceived delays on updates and gaps in information on the pandemic) factors in dealing with the pandemic. Conclusions: Results confirm the need for monitoring and assessing the psychological distress for HCPs in obstetrics. Interventions at the individual, interpersonal, and organizational level may relieve the psychological distress during the COVID-19 pandemic and foster resilience skills in facing emotional distress.

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