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1.
Commun Biol ; 7(1): 790, 2024 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-38951602

RESUMO

Neuroscience research has shown that specific brain patterns can relate to creativity during multiple tasks but also at rest. Nevertheless, the electrophysiological correlates of a highly creative brain remain largely unexplored. This study aims to uncover resting-state networks related to creative behavior using high-density electroencephalography (HD-EEG) and to test whether the strength of functional connectivity within these networks could predict individual creativity in novel subjects. We acquired resting state HD-EEG data from 90 healthy participants who completed a creative behavior inventory. We then employed connectome-based predictive modeling; a machine-learning technique that predicts behavioral measures from brain connectivity features. Using a support vector regression, our results reveal functional connectivity patterns related to high and low creativity, in the gamma frequency band (30-45 Hz). In leave-one-out cross-validation, the combined model of high and low networks predicts individual creativity with very good accuracy (r = 0.36, p = 0.00045). Furthermore, the model's predictive power is established through external validation on an independent dataset (N = 41), showing a statistically significant correlation between observed and predicted creativity scores (r = 0.35, p = 0.02). These findings reveal large-scale networks that could predict creative behavior at rest, providing a crucial foundation for developing HD-EEG-network-based markers of creativity.


Assuntos
Encéfalo , Criatividade , Eletroencefalografia , Descanso , Humanos , Eletroencefalografia/métodos , Masculino , Feminino , Adulto , Encéfalo/fisiologia , Adulto Jovem , Descanso/fisiologia , Conectoma/métodos
3.
Soins ; 69(883): 53-57, 2024 Mar.
Artigo em Francês | MEDLINE | ID: mdl-38453402

RESUMO

Multidimensional, chronic, progressive and incurable, Parkinson's disease is, by definition, a palliative disease, and this from the moment of diagnosis. This vision, relatively new to neurology, calls for a paradigm shift, as well as a dual medical-paramedical and home-hospital alliance. This approach allows us to better understand the specificities of Parkinson's disease and its treatments in terms of palliative issues.


Assuntos
Doença de Parkinson , Assistência Terminal , Humanos , Cuidados Paliativos , Doença de Parkinson/terapia
4.
J Parkinsons Dis ; 14(1): 209-219, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38217611

RESUMO

BACKGROUND: There are currently no recommendations on the therapeutic management of Parkinson's disease (PD) patients at the end of life. OBJECTIVE: To describe a cohort of patients with PD who benefited from continuous subcutaneous apomorphine infusion (CSAI) initiation at the end of their life as comfort care. METHODS: This real-life cohort includes 14 PD patients, who benefited from 24-h, low-dose CSAI (0.5-3 mg/h) in the context of terminal care. Patient's comfort (pain, rigidity, and/or ability to communicate) and occurrence of CSAI-related side-effects (nausea/vomiting, cutaneous and behavioral manifestations) were evaluated based on medical records. RESULTS: All patients (age 62-94 years, disease duration 2-32 years) presented with late-stage PD and a compromised oral route. Treatment lasted from a few hours to 39 days. CSAI led to substantial functional improvement, with a good safety profile. Overall clinical comfort was deemed improved by the medical team, the patient, and/or caregivers. CONCLUSIONS: CSAI might be a promising approach in PD terminal care, as it reduces motor symptoms and overall discomfort, with an apparent good safety profile. Use of the apomorphine pen, sublingual film or a classic syringe pump might be considered when apomorphine pumps are not available. Larger observational cohorts and randomized controlled trials are needed to establish the efficacy and tolerability of apomorphine in the context of terminal care and more broadly, in an advance care planning perspective.


Assuntos
Doença de Parkinson , Assistência Terminal , Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Apomorfina , Doença de Parkinson/tratamento farmacológico , Antiparkinsonianos/uso terapêutico , Conforto do Paciente
5.
Transl Psychiatry ; 14(1): 66, 2024 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-38280864

RESUMO

Anxiety is a common non-motor symptom in Parkinson's disease (PD) occurring in up to 31% of the patients and affecting their quality of life. Despite the high prevalence, anxiety symptoms in PD are often underdiagnosed and, therefore, undertreated. To date, functional and structural neuroimaging studies have contributed to our understanding of the motor and cognitive symptomatology of PD. Yet, the underlying pathophysiology of anxiety symptoms in PD remains largely unknown and studies on their neural correlates are missing. Here, we used resting-state electroencephalography (RS-EEG) of 68 non-demented PD patients with or without clinically-defined anxiety and 25 healthy controls (HC) to assess spectral and functional connectivity fingerprints characterizing the PD-related anxiety. When comparing the brain activity of the PD anxious group (PD-A, N = 18) to both PD non-anxious (PD-NA, N = 50) and HC groups (N = 25) at baseline, our results showed increased fronto-parietal delta power and decreased frontal beta power depicting the PD-A group. Results also revealed hyper-connectivity networks predominating in delta, theta and gamma bands against prominent hypo-connectivity networks in alpha and beta bands as network signatures of anxiety in PD where the frontal, temporal, limbic and insular lobes exhibited the majority of significant connections. Moreover, the revealed EEG-based electrophysiological signatures were strongly associated with the clinical scores of anxiety and followed their progression trend over the course of the disease. We believe that the identification of the electrophysiological correlates of anxiety in PD using EEG is conducive toward more accurate prognosis and can ultimately support personalized psychiatric follow-up and the development of new therapeutic strategies.


Assuntos
Doença de Parkinson , Humanos , Doença de Parkinson/complicações , Doença de Parkinson/psicologia , Qualidade de Vida , Eletroencefalografia , Ansiedade , Transtornos de Ansiedade , Encéfalo/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos
6.
J Neural Transm (Vienna) ; 130(11): 1411-1432, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37436446

RESUMO

Device-aided therapies (DAT), which include deep brain stimulation and pump-based continuous dopaminergic stimulation with either levodopa or apomorphine, are among the major advances in the clinical management of Parkinson's disease (PD). Although DAT are being increasingly offered earlier in the disease course, their classical indication remains advanced PD. Theoretically, every patient should be offered transition to DAT when faced with refractory motor and nonmotor fluctuations and functional decline. Worldwide clinical reality is far from these ideal, and, therefore, question the "real-world" equal opportunity of access to DAT for PD patients with advanced PD-even within a single health care system. Differences in access to care, referral pattern (timing and frequency), as well as physician biases (unconscious/implicit or conscious/explicit bias), and patients' preferences or health-seeking behaviour are to be considered. Compared to DBS, little information is available concerning infusion therapies, as well as neurologists' and patients' attitudes towards them. This viewpoint aims to be thought-provoking and to assist clinicians in moving through the process of DAT selection, by including in their decision algorithm their own biases, patient perspective, ethical concerns as well as the current unknowns surrounding PD prognosis and DAT-related long-term side effects for a given patient.


Assuntos
Estimulação Encefálica Profunda , Doença de Parkinson , Humanos , Doença de Parkinson/tratamento farmacológico , Antiparkinsonianos/uso terapêutico , Prognóstico , Preferência do Paciente , Incerteza , Levodopa/uso terapêutico
7.
Mov Disord ; 38(8): 1451-1460, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37310340

RESUMO

BACKGROUND: Parkinson's disease (PD) patients present with a heterogeneous clinical phenotype, including motor, cognitive, sleep, and affective disruptions. However, this heterogeneity is often either ignored or assessed using only clinical assessments. OBJECTIVES: We aimed to identify different PD sub-phenotypes in a longitudinal follow-up analysis and their electrophysiological profile based on resting-state electroencephalography (RS-EEG) and to assess their clinical significance over the course of the disease. METHODS: Using electrophysiological features obtained from RS-EEG recordings and data-driven methods (similarity network fusion and source-space spectral analysis), we have performed a clustering analysis to identify disease sub-phenotypes and we examined whether their different patterns of disruption are predictive of disease outcome. RESULTS: We showed that PD patients (n = 44) can be sub-grouped into three phenotypes with distinct electrophysiological profiles. These clusters are characterized by different levels of disruptions in the somatomotor network (Δ and ß band), the frontotemporal network (α2 band) and the default mode network (α1 band), which consistently correlate with clinical profiles and disease courses. These clusters are classified into either moderate (only-motor) or mild-to-severe (diffuse) disease. We showed that EEG features can predict cognitive evolution of PD patients from baseline, when the cognitive clinical scores were overlapped. CONCLUSIONS: The identification of novel PD subtypes based on electrical brain activity signatures may provide a more accurate prognosis in individual patients in clinical practice and help to stratify subgroups in clinical trials. Innovative profiling in PD can also support new therapeutic strategies that are brain-based and designed to modulate brain activity disruption. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.


Assuntos
Doença de Parkinson , Humanos , Doença de Parkinson/diagnóstico , Doença de Parkinson/psicologia , Encéfalo , Eletroencefalografia , Mapeamento Encefálico , Prognóstico
8.
J Neural Transm (Vienna) ; 130(11): 1463-1474, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-36862190

RESUMO

Continuous subcutaneous apomorphine infusion (CSAI) is used to treat patients with Parkinson's disease (PD) who are experiencing motor fluctuations. However, the need to initiate this treatment during a hospital stay may restrict patients' access to it. To assess the feasibility and benefits of initiating CSAI in the patient's own home. A French prospective multicenter longitudinal observational study (APOKADO) among patients with PD who required subcutaneous apomorphine, comparing in-hospital versus home initiation. Clinical status was assessed according to the Hoehn and Yahr score), the Unified Parkinson's Disease Rating Scale Part III, and the Montreal Cognitive Assessment. We assessed patients' quality of life with the 8-item Parkinson's Disease Questionnaire, rated the improvement in their clinical status on the 7-point Clinical Global Impression-Improvement scale, recorded adverse events, and ran a cost-benefit analysis. 145 patients with motor fluctuations were included in 29 centers (office and hospital). Of these, 106 (74%) were initiated onto CSAI at home, and 38 (26%) in hospital. At inclusion, the two groups were comparable for all demographic and PD characteristics. After 6 months, quality of life, adverse events and early dropout rates were similarly rare-across the two groups. Patients in the home group improved more quickly their quality of life and became more autonomous in managing the device than those in the hospital group, and their care costed less. This study shows that home (versus in-hospital) initiation of CSAI is feasible, improves patients' quality of life more quickly, with the same level of tolerance. It is also less expensive. This finding should make it easier for patients to access this treatment in the future.


Assuntos
Apomorfina , Doença de Parkinson , Humanos , Doença de Parkinson/terapia , Antiparkinsonianos/uso terapêutico , Qualidade de Vida , Estudos Prospectivos , Estudos de Viabilidade , Resultado do Tratamento , Levodopa/uso terapêutico
9.
Arch Clin Neuropsychol ; 38(6): 904-912, 2023 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-36796803

RESUMO

INTRODUCTION: Risk factors (e.g., motor symptom asymmetry) for short- and long-term cognitive and neuropsychiatric symptoms following deep brain stimulation (DBS) of the subthalamic nucleus (STN) in patients with Parkinson's disease have yet to be fully identified. The objectives of the present study were to determine whether motor symptom asymmetry in Parkinson's disease is one such risk factor and to identify predictors of subnormal cognitive decline. METHODS: A total of 26 patients receiving STN-DBS (13 with left-sided motor symptoms and 13 with right-sided ones) underwent follow-up neuropsychological, depression and apathy assessments over a 5-year period. Nonparametric intergroup comparisons were performed on raw scores, as well as Cox regression analyses on standardized Mattis Dementia Rating Scale scores. RESULTS: Compared with patients who had predominantly left-sided symptoms, right-sided patients scored higher on both apathy (at 3 months and 36 months) and depressive symptoms (at 6 months and 12 months) and scored lower on global cognitive efficiency (at 36 months and 60 months). Survival analyses revealed that only right-sided patients had subnormal standardized dementia scores, which were negatively associated with the number of perseverations in the Wisconsin Card Scoring Test. CONCLUSION: Right-sided motor symptoms are a risk factor for more severe short- and long-term cognitive and neuropsychiatric symptoms following STN-DBS, confirming literature findings on left hemispheric vulnerability.


Assuntos
Estimulação Encefálica Profunda , Doença de Parkinson , Núcleo Subtalâmico , Humanos , Doença de Parkinson/complicações , Doença de Parkinson/terapia , Doença de Parkinson/psicologia , Núcleo Subtalâmico/fisiologia , Estudos Longitudinais , Estimulação Encefálica Profunda/efeitos adversos , Testes Neuropsicológicos , Cognição , Resultado do Tratamento
11.
Neuroimage ; 258: 119331, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35660459

RESUMO

Among the cognitive symptoms that are associated with Parkinson's disease (PD), alterations in cognitive action control (CAC) are commonly reported in patients. CAC enables the suppression of an automatic action, in favor of a goal-directed one. The implementation of CAC is time-resolved and arguably associated with dynamic changes in functional brain networks. However, the electrophysiological functional networks involved, their dynamic changes, and how these changes are affected by PD, still remain unknown. In this study, to address this gap of knowledge, 10 PD patients and 10 healthy controls (HC) underwent a Simon task while high-density electroencephalography (HD-EEG) was recorded. Source-level dynamic connectivity matrices were estimated using the phase-locking value in the beta (12-25 Hz) and gamma (30-45 Hz) frequency bands. Temporal independent component analyses were used as a dimension reduction tool to isolate the task-related brain network states. Typical microstate metrics were quantified to investigate the presence of these states at the subject-level. Our results first confirmed that PD patients experienced difficulties in inhibiting automatic responses during the task. At the group-level, we found three functional network states in the beta band that involved fronto-temporal, temporo-cingulate and fronto-frontal connections with typical CAC-related prefrontal and cingulate nodes (e.g., inferior frontal cortex). The presence of these networks did not differ between PD patients and HC when analyzing microstates metrics, and no robust correlations with behavior were found. In the gamma band, five networks were found, including one fronto-temporal network that was identical to the one found in the beta band. These networks also included CAC-related nodes previously identified in different neuroimaging modalities. Similarly to the beta networks, no subject-level differences were found between PD patients and HC. Interestingly, in both frequency bands, the dominant network at the subject-level was never the one that was the most durably modulated by the task. Altogether, this study identified the dynamic functional brain networks observed during CAC, but did not highlight PD-related changes in these networks that might explain behavioral changes. Although other new methods might be needed to investigate the presence of task-related networks at the subject-level, this study still highlights that task-based dynamic functional connectivity is a promising approach in understanding the cognitive dysfunctions observed in PD and beyond.


Assuntos
Disfunção Cognitiva , Doença de Parkinson , Encéfalo/fisiologia , Cognição , Eletroencefalografia/métodos , Humanos , Imageamento por Ressonância Magnética/métodos
12.
Sci Rep ; 12(1): 6816, 2022 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-35473962

RESUMO

Emerging evidence showed that major depressive disorder (MDD) is associated with disruptions of brain structural and functional networks, rather than impairment of isolated brain region. Thus, connectome-based models capable of predicting the depression severity at the individual level can be clinically useful. Here, we applied a machine-learning approach to predict the severity of depression using resting-state networks derived from source-reconstructed Electroencephalography (EEG) signals. Using regression models and three independent EEG datasets (N = 328), we tested whether resting state functional connectivity could predict individual depression score. On the first dataset, results showed that individuals scores could be reasonably predicted (r = 0.6, p = 4 × 10-18) using intrinsic functional connectivity in the EEG alpha band (8-13 Hz). In particular, the brain regions which contributed the most to the predictive network belong to the default mode network. We further tested the predictive potential of the established model by conducting two external validations on (N1 = 53, N2 = 154). Results showed statistically significant correlations between the predicted and the measured depression scale scores (r1 = 0.52, r2 = 0.44, p < 0.001). These findings lay the foundation for developing a generalizable and scientifically interpretable EEG network-based markers that can ultimately support clinicians in a biologically-based characterization of MDD.


Assuntos
Conectoma , Transtorno Depressivo Maior , Encéfalo/diagnóstico por imagem , Transtorno Depressivo Maior/diagnóstico por imagem , Eletroencefalografia , Humanos , Aprendizado de Máquina
13.
Cogn Affect Behav Neurosci ; 22(5): 1030-1043, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35474566

RESUMO

There is growing evidence that both the basal ganglia and the cerebellum play functional roles in emotion processing, either directly or indirectly, through their connections with cortical and subcortical structures. However, the lateralization of this complex processing in emotion recognition remains unclear. To address this issue, we investigated emotional prosody recognition in individuals with Parkinson's disease (model of basal ganglia dysfunction) or cerebellar stroke patients, as well as in matched healthy controls (n = 24 in each group). We analysed performances according to the lateralization of the predominant brain degeneration/lesion. Results showed that a right (basal ganglia and cerebellar) hemispheric dysfunction was likely to induce greater deficits than a left one. Moreover, deficits following left hemispheric dysfunction were only observed in cerebellar stroke patients, and these deficits resembled those observed after degeneration of the right basal ganglia. Additional analyses taking disease duration / time since stroke into consideration revealed a worsening of performances in patients with predominantly right-sided lesions over time. These results point to the differential, but complementary, involvement of the cerebellum and basal ganglia in emotional prosody decoding, with a probable hemispheric specialization according to the level of cognitive integration.


Assuntos
Doença de Parkinson , Acidente Vascular Cerebral , Gânglios da Base , Cerebelo , Emoções , Humanos , Acidente Vascular Cerebral/complicações
14.
Mov Disord ; 37(7): 1444-1453, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35420713

RESUMO

BACKGROUND: Tracking longitudinal functional brain dysconnectivity in Parkinson's disease (PD) is a key element to decoding the underlying physiopathology and understanding PD progression. OBJECTIVES: The objectives of this follow-up study were to explore, for the first time, the longitudinal changes in the functional brain networks of PD patients over 5 years and to associate them with their cognitive performance and the lateralization of motor symptoms. METHODS: We used a 5-year longitudinal cohort of PD patients (n = 35) who completed motor and non-motor assessments and sequent resting state (RS) high-density electroencephalography (HD-EEG) recordings at three timepoints: baseline (BL), 3 years follow-up (3YFU) and 5 years follow-up (5YFU). We assessed disruptions in frequency-dependent functional networks over the course of the disease and explored their relation to clinical symptomatology. RESULTS: In contrast with HC (n = 32), PD patients showed a gradual connectivity impairment in α2 (10-13 Hz) and ß (13-30 Hz) frequency bands. The deterioration in the global cognitive assessment was strongly correlated with the disconnected networks. These disconnected networks were also associated with the lateralization of motor symptoms, revealing a dominance of the right hemisphere in terms of impaired connections in the left-affected PD patients in contrast to dominance of the left hemisphere in the right-affected PD patients. CONCLUSIONS: Taken together, our findings suggest that with disease progression, dysconnectivity in the brain networks in PD can reflect the deterioration of global cognitive deficits and the lateralization of motor symptoms. RS HD-EEG may be an early biomarker of PD motor and non-motor progression. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.


Assuntos
Doença de Parkinson , Encéfalo/diagnóstico por imagem , Eletroencefalografia , Seguimentos , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Doença de Parkinson/complicações
15.
Sci Rep ; 12(1): 3007, 2022 02 22.
Artigo em Inglês | MEDLINE | ID: mdl-35194127

RESUMO

Risk factors for long-term non-motor symptoms and quality of life following subthalamic nucleus deep brain stimulation (STN DBS) have not yet been fully identified. In the present study, we investigated the impact of motor symptom asymmetry in Parkinson's disease. Data were extracted for 52 patients with Parkinson's disease (half with predominantly left-sided motor symptoms and half with predominantly right-sided ones) who underwent bilateral STN and a matched healthy control group. Performances for cognitive tests, apathy and depression symptoms, as well as quality-of-life questionnaires at 12 months post-DBS were compared with a pre-DBS baseline. Results indicated a deterioration in cognitive performance post-DBS in patients with predominantly left-sided motor symptoms. Performances of patients with predominantly right-sided motor symptoms were maintained, except for a verbal executive task. These differential effects had an impact on patients' quality of life. The results highlight the existence of two distinct cognitive profiles of Parkinson's disease, depending on motor symptom asymmetry. This asymmetry is a potential risk factor for non-motor adverse effects following STN DBS.


Assuntos
Estimulação Encefálica Profunda/efeitos adversos , Estimulação Encefálica Profunda/métodos , Transtornos Motores/etiologia , Transtornos Motores/terapia , Doença de Parkinson/psicologia , Doença de Parkinson/terapia , Qualidade de Vida , Núcleo Subtalâmico/fisiologia , Apatia , Cognição , Feminino , Lateralidade Funcional , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Doença de Parkinson/complicações , Doença de Parkinson/fisiopatologia , Fatores de Risco , Inquéritos e Questionários , Fatores de Tempo , Comportamento Verbal
16.
J Parkinsons Dis ; 11(4): 1507-1535, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34250950

RESUMO

Despite clinical evidence of poor oral health and hygiene in Parkinson's disease (PD) patients, the mouth is often overlooked by both patients and the medical community, who generally focus on motor or psychiatric disorders considered more burdensome. Yet, oral health is in a two-way relationship with overall health-a weakened status triggering a decline in the quality of life. Here, we aim at giving a comprehensive overview of oral health disorders in PD, while identifying their etiologies and consequences. The physical (abnormal posture, muscle tone, tremor, and dyskinesia), behavioral (cognitive and neuropsychiatric disorders), and iatrogenic patterns associated with PD have an overall detrimental effect on patients' oral health, putting them at risk for other disorders (infections, aspiration, pain, malnutrition), reducing their quality of life and increasing their isolation (anxiety, depression, communication issues). Interdisciplinary cooperation for prevention, management and follow-up strategies need to be implemented at an early stage to maintain and improve patients' overall comfort and condition. Recommendations for practice, including (non-)pharmacological management strategies are discussed, with an emphasis on the neurologists' role. Of interest, the oral cavity may become a valuable tool for diagnosis and prognosis in the near future (biomarkers). This overlooked but critical issue requires further attention and interdisciplinary research.


Assuntos
Doença de Parkinson , Ansiedade/psicologia , Humanos , Saúde Bucal , Doença de Parkinson/complicações , Qualidade de Vida , Tremor/fisiopatologia
17.
Mov Disord ; 36(7): 1704-1711, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33792958

RESUMO

BACKGROUND: There are no effective treatments for multiple system atrophy (MSA). OBJECTIVE: The objective of this study was to assess the efficacy and safety of the serotonin reuptake inhibitor fluoxetine (40 mg/d) for the symptomatic treatment of MSA. METHODS: This was a double-blind, parallel-group, placebo-controlled, randomized trial in patients with "probable" MSA. The primary outcome was the change from baseline to week 12 in the mean total score of the Unified MSA Rating Scale (UMSARS Parts I + II). Secondary outcomes included change from baseline to week 6 in total UMSARS, and change from baseline to week 12 in the Scales for Outcomes in Parkinson Disease-Autonomic Dysfunction, Beck Depression Inventory, and different domains of the MSA-Quality of Life Questionnaire. Exploratory outcomes included change from baseline to week 12 in the UMSARS Parts I and II separately and change from baseline to week 24 in the total UMSARS score. RESULTS: A total of 81 patients were randomly assigned, with no significant difference in the primary outcome (-2.13 units [95% confidence interval, CI, -4.55 to 0.29]; P = 0.08). There was a greater reduction on fluoxetine in the change from baseline to 12-week in UMSARS Part II (exploratory outcome: -1.41 units [95% CI, -2.84; 0.03]; p = 0.05) and in MSA-QoL emotional/social dimension (secondary outcome: -6.99 units [95% CI, -13.40; -0.56]; p < 0.03). A total of 5 deaths occurred (3 on fluoxetine and 2 on placebo). CONCLUSION: The MSA-FLUO failed to demonstrate fluoxetine superiority over placebo on the total UMSARS score, whereas trends in motor and emotional secondary/exploratory outcomes deserve further investigation. © 2021 International Parkinson and Movement Disorder Society.


Assuntos
Atrofia de Múltiplos Sistemas , Doença de Parkinson , Método Duplo-Cego , Fluoxetina/uso terapêutico , Humanos , Atrofia de Múltiplos Sistemas/tratamento farmacológico , Qualidade de Vida , Inquéritos e Questionários , Resultado do Tratamento
18.
Neurology ; 96(23): e2874-e2884, 2021 06 08.
Artigo em Inglês | MEDLINE | ID: mdl-33910940

RESUMO

OBJECTIVES: To test for cerebellar involvement in motor and nonmotor impairments in Parkinson disease (PD) and to determine patterns of metabolic correlations with supratentorial brain structures, we correlated clinical motor, cognitive, and psychiatric scales with cerebellar metabolism. METHODS: We included 90 patients with PD. Motor, cognitive, and psychiatric domains were assessed, and resting-state 18FDG-PET metabolic imaging was performed. The motor, cognitive, and psychiatric scores were entered separately into a principal component analysis. We looked for correlations between these 3 principal components and cerebellar metabolism. Furthermore, we extracted the mean glucose metabolism value for each significant cerebellar cluster and looked for patterns of cerebrum-cerebellum metabolic correlations. RESULTS: Severity of impairment was correlated with increased metabolism in the anterior lobes and vermis (motor domain); the right crus I, crus II, and declive (cognitive domain); and the right crus I and crus II (psychiatric domain). No results survived multiple testing corrections regarding the psychiatric domain. Moreover, we found distributed and overlapping, but not identical, patterns of metabolic correlations for motor and cognitive domains. Specific supratentorial structures (cortical structures, basal ganglia, and thalamus) were strongly correlated with each of the cerebellar clusters. CONCLUSIONS: These results confirm the role of the cerebellum in nonmotor domains of PD, with differential but overlapping patterns of metabolic correlations suggesting the involvement of cerebello-thalamo-striatal-cortical loops.


Assuntos
Sintomas Comportamentais , Cerebelo , Disfunção Cognitiva , Rede Nervosa , Doença de Parkinson , Adulto , Idoso , Gânglios da Base/diagnóstico por imagem , Gânglios da Base/metabolismo , Gânglios da Base/fisiopatologia , Sintomas Comportamentais/diagnóstico por imagem , Sintomas Comportamentais/etiologia , Sintomas Comportamentais/metabolismo , Sintomas Comportamentais/fisiopatologia , Cerebelo/diagnóstico por imagem , Cerebelo/metabolismo , Cerebelo/fisiopatologia , Córtex Cerebral/diagnóstico por imagem , Córtex Cerebral/metabolismo , Córtex Cerebral/fisiopatologia , Disfunção Cognitiva/diagnóstico por imagem , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/metabolismo , Disfunção Cognitiva/fisiopatologia , Feminino , Fluordesoxiglucose F18 , Humanos , Masculino , Pessoa de Meia-Idade , Rede Nervosa/diagnóstico por imagem , Rede Nervosa/metabolismo , Rede Nervosa/fisiopatologia , Doença de Parkinson/complicações , Doença de Parkinson/diagnóstico por imagem , Doença de Parkinson/metabolismo , Doença de Parkinson/fisiopatologia , Tomografia por Emissão de Pósitrons , Análise de Componente Principal , Tálamo/diagnóstico por imagem , Tálamo/metabolismo , Tálamo/fisiopatologia
19.
J Neurol Sci ; 421: 117320, 2021 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-33518377

RESUMO

BACKGROUND: Neurophobia is a chronic disease of medical students and junior doctors. Early detection is needed to facilitate prevention and management as this fear can negatively impact patient care. METHODS: We conducted a two-part mono-centric study at the faculty of Medicine, Sorbonne University, in Paris. Part one: a cross-sectional study to validate a newly constructed neurophobia scale, NeuroQ. Part two: a prospective longitudinal study to assess the impact of The Move on student neurophobia using NeuroQ. A population-based sample of second-year medical students of the 2019 and 2020 class of the Faculty of Medicine of Sorbonne University were invited to participate. RESULTS: NeuroQ incorporates the main themes of the neurophobia definition and demonstrates uni-dimensionality. Three hundred and ninety-five medical students participated in the study (mean age was 20.0 years, SD: 2.1 years) assessing the effect of The Move teaching on neurophobia. Two hundred and eighty-eight (72.9%) students were female. After the Move teaching the mean NeuroQ score was significantly lower compared to the baseline NeuroQ score (mean [SD] variation, -1.1 [2.6], p < 0.001). There was a 22.3% relative reduction in the number of neurophobic students after The Move teaching. CONCLUSION: Our results highlight the utility of NeuroQ in assessing (i) baseline neurophobia and (ii) the impact of pre-clinical educational interventions on neurophobia. Furthermore, we have shown the importance of pre-clinical educational interventions, such as The Move, in tackling neurophobia.


Assuntos
Neurologia , Estudantes de Medicina , Adulto , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Estudos Prospectivos , Adulto Jovem
20.
Alcohol Alcohol ; 56(3): 251-257, 2021 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-33089320

RESUMO

AIM: To validate a French translation of the Alcohol Urge Questionnaire (AUQ) that measures craving in patients with alcohol dependence. METHOD: All patients aged > 18 years who were hospitalized for alcohol detoxification from February to May 2019 in the alcohol unit of the Rennes university hospital were eligible. A back-translated version of the AUQ was completed at admission. Patients were interviewed at the end of the 7-day detoxification program by a trained addiction psychiatrist (MS), using tablet computed-based questionnaires assessing state craving (visual analog scale), alcohol dependence severity, drinking behavior, psychological distress and physical/mental health. The same investigator assessed relapse 1 month after discharge. RESULTS: A total of 80 inpatients were recruited and completed questionnaires. The single factor structure of the French version of the AUQ was similar to the original questionnaire, and was supported by strong internal reliability and item-scale validity. The AUQ score correlated highly acute craving measure, but moderately scales assessing the severity of alcohol dependence, drinking behavior and mental health. Relapse 1 month after discharge was significantly related to AUQ score assessed either at baseline, or with better estimate at the end of the 7-day detoxification period. CONCLUSION: The French version of the AUQ provides a reliable measure of phasic craving, which is best described as a context-dependent single-factor variable, related to but distinct from tonic craving, dependence severity and drinking behavior. The ease of administration makes the AUQ a useful tool for French-speaking patients with alcohol dependence.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Alcoolismo/psicologia , Inquéritos e Questionários , Adulto , Fissura , Feminino , França , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Recidiva , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Estresse Psicológico , Traduções
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