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1.
Article in English | MEDLINE | ID: mdl-37650992

ABSTRACT

Breastfeeding has been associated with several short- and long-term health benefits, including positive cognitive and behavioral outcomes. However, the impact of breastfeeding on structural brain development over time remains unclear. We aimed to assess the association between breastfeeding duration in childhood and the developmental trajectory of overall cortical thickness, cortical area, and total intracranial volume during the transition from childhood to early adulthood. Participants included 670 children and adolescents with 1326 MRI scans acquired over 8 years from the Brazilian High-Risk Cohort for Mental Conditions (BHRCS). Breastfeeding was assessed using a questionnaire answered by the parents. Brain measures were estimated using MRI T1-weighted images at three time points, with 3-year intervals. Data were evaluated using generalized additive models adjusted for multiple confounders. We found that a longer breastfeeding duration was directly associated with higher global cortical thickness in the left (edf = 1.0, F = 6.07, p = 0.01) and right (edf = 1.0, F = 4.70, p = 0.03) hemispheres. For the total intracranial volume, we found an interaction between duration of breastfeeding and developmental stage (edf = 1.0, F = 6.81, p = 0.009). No association was found between breastfeeding duration and brain area. Our study suggests that the duration of breastfeeding impacts overall cortical thickness and the development of total brain volume, but not area. This study adds to the evidence on the potential impact of breastfeeding on brain development and provides relevant insights into the mechanisms by which breastfeeding might confer cognitive and mental health benefits.

3.
Sci Rep ; 13(1): 6886, 2023 04 27.
Article in English | MEDLINE | ID: mdl-37106035

ABSTRACT

Recently, several studies have investigated the neurodevelopment of psychiatric disorders using brain data acquired via structural magnetic resonance imaging (sMRI). These analyses have shown the potential of sMRI data to provide a relatively precise characterization of brain structural biomarkers. Despite these advances, a relatively unexplored question is how reliable and consistent a model is when assessing subjects from other independent datasets. In this study, we investigate the performance and generalizability of the same model architecture trained from distinct datasets comprising youths in diverse stages of neurodevelopment and with different mental health conditions. We employed models with the same 3D convolutional neural network (CNN) architecture to assess autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), brain age, and a measure of dimensional psychopathology, the Child Behavior Checklist (CBCL) total score. The investigated datasets include the Autism Brain Imaging Data Exchange II (ABIDE-II, N = 580), Attention Deficit Hyperactivity Disorder (ADHD-200, N = 922), Brazilian High-Risk Cohort Study (BHRCS, N = 737), and Adolescent Brain Cognitive Development (ABCD, N = 11,031). Models' performance and interpretability were assessed within each dataset (for diagnosis tasks) and inter-datasets (for age estimation). Despite the demographic and phenotypic differences of the subjects, all models presented significant estimations for age (p value < 0.001) within and between datasets. In addition, most models showed a moderate to high correlation in age estimation. The results, including the models' brain regions of interest (ROI), were analyzed and discussed in light of the youth neurodevelopmental structural changes. Among other interesting discoveries, we found that less confounded training datasets produce models with higher generalization capacity.


Subject(s)
Attention Deficit Disorder with Hyperactivity , Autism Spectrum Disorder , Child , Humans , Adolescent , Autism Spectrum Disorder/psychology , Cohort Studies , Brain/diagnostic imaging , Brain/pathology , Magnetic Resonance Imaging/methods , Attention Deficit Disorder with Hyperactivity/diagnosis , Neural Networks, Computer
4.
Braz. J. Psychiatry (São Paulo, 1999, Impr.) ; 45(2): 182-195, Mar.-Apr. 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1439558

ABSTRACT

Objectives: Ketamine has a fast onset of action that may offer a paradigm change for depression management at the end of life. We aimed to synthesize evidence regarding the safety and efficacy of ketamine in depression treatment within a broad palliative care concept. Methods: We searched seven databases and included studies on the safety and efficacy of ketamine for depression treatment in patients diagnosed with any life-threatening disease. We also conducted a narrative review of the evidence. Results: Among 2,252 screened titles and abstracts, we included 32 studies in our final synthesis: 14 case reports, two case series, two quasi-experimental studies, and seven randomized clinical trials (RCTs), as well as data from three unpublished clinical trials and seven cases from four larger case series. Most case reports reported a robust effect; however, the larger studies reported conflicting findings. Five RCTs reported positive outcomes; however, four of them were focused on a perioperative setting. Two negative studies did not primarily focus on depression and did not apply severity cutoffs. Conclusion: Although ketamine is generally safe and potentially useful, its efficacy in palliative care settings remains unclear. It may be a reasonable alternative for perioperative depression in oncological patients.

5.
Genes Brain Behav ; 22(2): e12838, 2023 04.
Article in English | MEDLINE | ID: mdl-36811275

ABSTRACT

Neuroimaging studies suggest that brain development mechanisms might explain at least some behavioural and cognitive attention-deficit/hyperactivity disorder (ADHD) symptoms. However, the putative mechanisms by which genetic susceptibility factors influence clinical features via alterations of brain development remain largely unknown. Here, we set out to integrate genomics and connectomics tools by investigating the associations between an ADHD polygenic risk score (ADHD-PRS) and functional segregation of large-scale brain networks. With this aim, ADHD symptoms score, genetic and rs-fMRI (resting-state functional magnetic resonance image) data obtained in a longitudinal community-based cohort of 227 children and adolescents were analysed. A follow-up was conducted approximately 3 years after the baseline, with rs-fMRI scanning and ADHD likelihood assessment in both stages. We hypothesised a negative correlation between probable ADHD and the segregation of networks involved in executive functions, and a positive correlation with the default-mode network (DMN). Our findings suggest that ADHD-PRS is correlated with ADHD at baseline, but not at follow-up. Despite not surviving for multiple comparison correction, we found significant correlations between ADHD-PRS and segregation of cingulo-opercular networks and DMN at baseline. ADHD-PRS was negatively correlated with the segregation level of cingulo-opercular networks but positively correlated with the DMN segregation. These directions of associations corroborate the proposed counter-balanced role of attentional networks and DMN in attentional processes. However, the association between ADHD-PRS and brain networks functional segregation was not found at follow-up. Our results provide evidence for specific influences of genetic factors on development of attentional networks and DMN. We found significant correlations between polygenic risk score for ADHD (ADHD-PRS) and segregation of cingulo-opercular networks and default-mode network (DMN) at baseline. ADHD-PRS was negatively correlated with the segregation level of cingulo-opercular networks but positively correlated with the DMN segregation.


Subject(s)
Attention Deficit Disorder with Hyperactivity , Connectome , Child , Adolescent , Humans , Attention Deficit Disorder with Hyperactivity/diagnostic imaging , Attention Deficit Disorder with Hyperactivity/genetics , Neural Pathways/diagnostic imaging , Brain/diagnostic imaging , Risk Factors , Magnetic Resonance Imaging/methods
6.
Braz J Psychiatry ; 45(2): 182-195, 2023 May 11.
Article in English | MEDLINE | ID: mdl-36574497

ABSTRACT

OBJECTIVES: Ketamine has a fast onset of action that may offer a paradigm change for depression management at the end of life. We aimed to synthesize evidence regarding the safety and efficacy of ketamine in depression treatment within a broad palliative care concept. METHODS: We searched seven databases and included studies on the safety and efficacy of ketamine for depression treatment in patients diagnosed with any life-threatening disease. We also conducted a narrative review of the evidence. RESULTS: Among 2,252 screened titles and abstracts, we included 32 studies in our final synthesis: 14 case reports, two case series, two quasi-experimental studies, and seven randomized clinical trials (RCTs), as well as data from three unpublished clinical trials and seven cases from four larger case series. Most case reports reported a robust effect; however, the larger studies reported conflicting findings. Five RCTs reported positive outcomes; however, four of them were focused on a perioperative setting. Two negative studies did not primarily focus on depression and did not apply severity cutoffs. CONCLUSIONS: Although ketamine is generally safe and potentially useful, its efficacy in palliative care settings remains unclear. It may be a reasonable alternative for perioperative depression in oncological patients.


Subject(s)
Ketamine , Humans , Ketamine/therapeutic use , Depression/etiology , Antidepressive Agents/therapeutic use , Palliative Care
7.
Neurobiol Stress ; 17: 100441, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35257017

ABSTRACT

Objective: Improved understanding of the time course of neural changes associated with adolescent PTSD would elucidate the development of the disorder and could inform approaches to treatment. We compared hippocampal volumes and resting state functional connectivity (RSFC) in adolescent girls with post-traumatic stress disorder (PTSD) secondary to sexual assault, within six months of onset and age- and gender-matched, non-trauma exposed healthy controls (HCs) in São Paulo, Brazil. We also examined the relationship between pre- and post-treatment PTSD symptoms and RSFC. Method: We collected brain structure, RSFC, and PTSD symptoms in 30 adolescents with PTSD (mean age: 15.7 ± 1.04 years) and 21 HCs (mean age: 16.2 ± 1.21 years) at baseline. We collected repeated measures in 21 participants with PTSD following treatment; 9 participants dropped out. Hippocampal volume and RSFC from hippocampal and default mode network (DMN) seeds were compared between participants with PTSD and HCs. We examined associations between within-subject changes in RSFC and PTSD symptoms following treatment. Results: No hippocampal volumetric differences between groups were found. Compared to HCs, adolescents with recent PTSD had reduced RSFC between hippocampus and the lateral parietal node of the DMN, encompassing the angular gyrus, peak coordinates: -38, -54, 16; 116 voxels; peak F 1,47 = 31.76; FDR corrected p = 0.038. Improvements in PTSD symptoms were associated with increased RSFC between hippocampus and part of the lateral parietal node of the DMN, peak coordinates: -38, -84, 38; 316 voxels; peak F 1,47 = 40.28; FDR corrected p < 0.001. Conclusion: Adolescents with recent PTSD had reduced hippocampal-DMN RSFC, while no group differences in hippocampal volume were found, suggesting that hippocampal function, but not structure, is altered early in the course of PSTD. Following treatment, hippocampal-DMN RSFC increased with symptom improvement and may indicate an important neural mechanism related to successful PTSD treatment.

8.
Rev Psiquiatr Salud Ment (Engl Ed) ; 14(4): 212-217, 2021.
Article in English | MEDLINE | ID: mdl-34861929

ABSTRACT

INTRODUCTION: The administration of multiple esketamine doses has shown efficacy for unipolar and bipolar treatment-resistant depression (TRD). Nevertheless, the probability of responding or not after each dose in the real-world remains unknown. This study aimed to estimate it throughout four doses of esketamine, administrated via subcutaneous (SC). MATERIAL AND METHODS: We conducted a retrospective analysis of a case series of 70 patients with TRD who received treatment from the esketamine assistance program at Federal University of Sao Paulo, between April 2017 and December 2018. The SC injections were administrated weekly at a dose of 0.5-1.0mg/kg, in conjunction with patients' psychotropic drugs. Response was defined as a decrease of at least 50% in the Montgomery-Åsberg Depression Rating Scale between baseline and 24h after dose. We used hidden Markov modeling in order to estimate de probability of response after each esketamine injection. RESULTS: The probability of a patient that was a "non-responder" to become a "responder" following a SC injection of esketamine was 17.30% and the probability that this patient remains a "non-responder" was 82.70%. The probability of a patient that was a "responder" to remain as a "responder" was 95%. CONCLUSIONS: Patients with TRD who had not responded after the first dose of esketamine, still had a chance of responding after the subsequent dose administrated via SC.


Subject(s)
Antidepressive Agents , Depression , Antidepressive Agents/therapeutic use , Depression/drug therapy , Humans , Injections, Subcutaneous , Ketamine , Probability , Retrospective Studies
9.
Rev. psiquiatr. salud ment. (Barc., Ed. impr.) ; 14(4): 212-217, Oct.-Dic. 2021. tab, graf
Article in English | IBECS | ID: ibc-230639

ABSTRACT

Introduction The administration of multiple esketamine doses has shown efficacy for unipolar and bipolar treatment-resistant depression (TRD). Nevertheless, the probability of responding or not after each dose in the real-world remains unknown. This study aimed to estimate it throughout four doses of esketamine, administrated via subcutaneous (SC). Material and methods We conducted a retrospective analysis of a case series of 70 patients with TRD who received treatment from the esketamine assistance program at Federal University of Sao Paulo, between April 2017 and December 2018. The SC injections were administrated weekly at a dose of 0.5–1.0mg/kg, in conjunction with patients’ psychotropic drugs. Response was defined as a decrease of at least 50% in the Montgomery-Åsberg Depression Rating Scale between baseline and 24h after dose. We used hidden Markov modeling in order to estimate de probability of response after each esketamine injection. Results The probability of a patient that was a “non-responder” to become a “responder” following a SC injection of esketamine was 17.30% and the probability that this patient remains a “non-responder” was 82.70%. The probability of a patient that was a “responder” to remain as a “responder” was 95%. Conclusions Patients with TRD who had not responded after the first dose of esketamine, still had a chance of responding after the subsequent dose administrated via SC. (AU)


Introducción La administración de dosis múltiples de esketamina ha demostrado su eficacia para el tratamiento de la depresión unipolar y bipolar resistente al tratamiento (TRD). Sin embargo, sigue siendo una incógnita la probabilidad de responder o no tras cada dosis en el mundo real. El objetivo de este estudio fue calcular dicha probabilidad durante la administración vía subcutánea (SC) de cuatro dosis de esketamina. Material y métodos Realizamos un análisis retrospectivo de una serie de casos de 70 pacientes con TRD, que recibieron tratamiento a través del programa de asistencia con esketamina en la Universidad Federal University de Sao Paulo, entre abril de 2017 y diciembre de 2018. Las inyecciones SC se administraron semanalmente, a dosis de 0,5-1mg/kg, junto con los medicamentos psicotrópicos de los pacientes. Se definió la respuesta como una reducción de al menos el 50% en la Escala de Calificación de la Depresión de Montgomery-Åsberg entre el valor basal y las 24 horas posteriores a la administración de la dosis. Utilizamos el modelo oculto de Markov para calcular la probabilidad de respuesta tras cada inyección de esketamina. Resultados La probabilidad de que un paciente que fuera «no respondedor» se convirtiera en «respondedor», tras una inyección SC de esketamina fue del 17,3%, y la probabilidad de que este paciente siguiera siendo «no respondedor» fue del 82,7%. La probabilidad de que un paciente que fuera «respondedor» lo siguiera siendo fue del 95%. Conclusiones Los pacientes con TRD que no han respondido a la primera dosis de esketamina, tienen probabilidad de respuesta tras la administración de las siguientes dosis por vía SC. (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Ketamine/analogs & derivatives , Ketamine/administration & dosage , Ketamine/therapeutic use , Injections, Subcutaneous , Depressive Disorder, Treatment-Resistant/drug therapy , Depressive Disorder, Treatment-Resistant/therapy , Bipolar Disorder/drug therapy , Bipolar Disorder/therapy , Depressive Disorder/drug therapy , Depressive Disorder/therapy , Brazil
10.
Schizophr Res ; 236: 104-114, 2021 10.
Article in English | MEDLINE | ID: mdl-34481405

ABSTRACT

BACKGROUND: Brain magnetic resonance imaging studies have not investigated the cortical surface comprehensively in schizophrenia subjects by assessing thickness, surface area and gyrification separately during the first-episode of psychosis (FEP) or chronic schizophrenia (ChSch). METHODS: We investigated cortical surface abnormalities in 137 FEP patients and 240 ChSch subjects compared to 297 Healthy Controls (HC) contributed by five cohorts. Maps showing results of vertexwise between-group comparisons of cortical thickness, area, and gyrification were produced using T1-weighted datasets processed using FreeSurfer 5.3, followed by validated quality control protocols. RESULTS: FEP subjects showed large clusters of increased area and gyrification relative to HC in prefrontal and insuli cortices (Cohen's d: 0.049 to 0.28). These between-group differences occurred partially beyond the effect of sample. ChSch subjects displayed reduced cortical thickness relative to HC in smaller fronto-temporal foci (d: -0.73 to -0.35), but not beyond the effect of sample. Differences between FEP and HC subjects were associated with male gender, younger age, and earlier illness onset, while differences between ChSch and HC were associated with treatment-resistance and first-generation antipsychotic (FGA) intake independently of sample effect. CONCLUSIONS: Separate assessments of FEP and ChSch revealed abnormalities that differed in regional distribution, phenotypes affected and effect size. In FEP, associations of greater cortical area and gyrification abnormalities with earlier age of onset suggest an origin on anomalous neurodevelopment, while thickness reductions in ChSch are at least partially explained by treatment-resistance and FGA intake. Associations of between-group differences with clinical variables retained statistical significance beyond the effect of sample.


Subject(s)
Antipsychotic Agents , Psychotic Disorders , Schizophrenia , Antipsychotic Agents/therapeutic use , Cerebral Cortex/diagnostic imaging , Cross-Sectional Studies , Humans , Magnetic Resonance Imaging , Male , Psychotic Disorders/diagnostic imaging , Psychotic Disorders/drug therapy , Schizophrenia/diagnostic imaging , Schizophrenia/drug therapy
11.
Eur J Neurosci ; 54(6): 6187-6201, 2021 09.
Article in English | MEDLINE | ID: mdl-34460993

ABSTRACT

There is compelling evidence showing that between-subject variability in several functional and structural brain features is sufficient for unique identification in adults. However, individuation of brain functional connectomes depends on the stabilization of neurodevelopmental processes during childhood and adolescence. Here, we aimed to (1) evaluate the intra-subject functional connectome stability over time for the whole brain and for large scale functional networks and (2) determine the long-term identification accuracy or 'fingerprinting' for the cortical volumetric profile and the functional connectome. For these purposes, we analysed a longitudinal cohort of 239 children and adolescents scanned in two sessions with an interval of approximately 3 years (age range 6-15 years at baseline and 9-18 years at follow-up). Corroborating previous results using short between-scan intervals in children and adolescents, we observed a moderate identification accuracy (38%) for the whole functional profile. In contrast, identification accuracy using cortical volumetric profile was 95%. Among the large-scale networks, the default-mode (26.8%), the frontoparietal (23.4%) and the dorsal-attention (27.6%) networks were the most discriminative. Our results provide further evidence for a protracted development of specific individual structural and functional connectivity profiles.


Subject(s)
Connectome , Adolescent , Adult , Attention , Brain/diagnostic imaging , Child , Humans , Magnetic Resonance Imaging , Nerve Net/diagnostic imaging
12.
Front Psychiatry ; 12: 673595, 2021.
Article in English | MEDLINE | ID: mdl-34163385

ABSTRACT

Background: Thalamic volume measures have been linked to obsessive-compulsive disorder (OCD) in children and adolescents. However, it is unclear if alterations in thalamic volumes occur before or after symptom onset and if there is a relation to the presence of sub-clinical obsessive-compulsive symptoms (OCS). Here, we explore the relationship between OCS and the rate of thalamic volume change in a cohort of children and youth at high risk to develop a mental disorder. A secondary aim was to determine if there is a relationship between OCS and the individual's OCD polygenic risk score (OCD-PRS) and between the rate of thalamic volume change and the OCD-PRS. Methods: The sample included 378 children enrolled in the longitudinal Brazilian High-Risk Cohort for Mental Conditions. Participants were assessed for OCS and the symmetrized percent change (SPC) of thalamic volume across two time-points separated by 3 years, along with the OCD-PRS. Zero-altered negative binomial models were used to analyze the relationship between OCS and thalamic SPC. Multiple linear regressions were used to examine the relationship between thalamic SPC and OCD-PRS. Results: A significant relationship between OCS and the right thalamus SPC (p = 0.042) was found. There was no significant relationship between changes in thalamic volume SPC and OCD-PRS. Conclusions: The findings suggest that changes in the right thalamic volume over the course of 3 years in children may be associated to OCS. Future studies are needed to confirm these results and further characterize the specific nature of OCS symptoms associated with thalamic volumes.

13.
Psychiatry Res Neuroimaging ; 311: 111281, 2021 05 30.
Article in English | MEDLINE | ID: mdl-33836383

ABSTRACT

Depression is the most frequent psychiatric comorbidity in patients with mesial temporal lobe epilepsy (MTLE) and hippocampal sclerosis (HS). This study aimed to confirm whether patients with comorbid depression have different volumetric patterns on magnetic resonance imaging, analysing the influence of HS sides. Psychiatrists conducted semi-structured interviews with 75 patients, who were divided into non-depression group (NDG, n = 52) and depression group (DG, n = 23), and compared with 98 controls. The FreeSurfer software was used in the volumetric analysis of the estimated total intracranial volume (eTIV), bilateral cortical and subcortical regions of interest (ROIs), and for presence of left (L-, n = 41) or right (R-, n = 34) MTLE-HS. Twenty-three (30.7%) patients had depression, of whom 14 (34.1%) had l-MTLE-HS and 9 (26.5%) had R-MTLE-HS. No difference was observed between DG and NDG vs. controls in terms of eTIV and cortical ROIs, regardless of the severity of depression. In patients with l-MTLE-HS, the eTIV in the DG was reduced in comparison with that in the NDG and control group, with a small effect size. Hippocampal reduction occurred ipsilateral to HS in the l-MTLE-HS and R-MTLE-HS subgroups when DG and NDG were compared with controls, as expected according to Enhancing Neuro Imaging Genetics through Meta-Analysis (2018).


Subject(s)
Epilepsy, Temporal Lobe , Depression/diagnostic imaging , Depression/epidemiology , Epilepsy, Temporal Lobe/complications , Epilepsy, Temporal Lobe/diagnostic imaging , Epilepsy, Temporal Lobe/epidemiology , Hippocampus/diagnostic imaging , Hippocampus/pathology , Humans , Magnetic Resonance Imaging , Sclerosis/diagnostic imaging , Sclerosis/epidemiology , Sclerosis/pathology
14.
Arch. Clin. Psychiatry (Impr.) ; 47(6): 187-191, Nov.Dec. 2020. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1248763

ABSTRACT

ABSTRACT Background: Patients with Bipolar Disorder (BD) have the highest lifetime risk for suicidal behavior (SB) compared to other psychiatric disorders. Neuroimaging research provides evidence of some structural and functional abnormalities in the brain of BD suicide attempters (SA), but interpretation of these findings may represent a number of features. Objective: The purpose of this study was to evaluate the volume of the prefrontal cortex in euthymic BD type I outpatients, with and without history of SA. Methods: 36 euthymic BD I outpatients (18 with and 18 without suicide attempt history) were underwent structural MRI and total and regional gray matter volumes were assessed and compared with 22 healthy controls (HC). Results: We did not found any differences in all areas between suicidal and non-suicidal BD I patients and BD patients as a group compared to HC as well. Discussion: our findings suggest that can be a different subgroups of patients in relation to prefrontal cortex volumes according to some clinical and socio-demographic caractheristics, such as number of previous episodes and continuous use of medical psychotropic drugs that may induce neuroplasticity phenomena, which restore cerebral volume and possibly can lead to long-term euthymia state.

15.
JMIR Res Protoc ; 9(11): e19162, 2020 Nov 18.
Article in English | MEDLINE | ID: mdl-33206061

ABSTRACT

BACKGROUND: Posttraumatic stress disorder (PTSD) is a prevalent, chronic, and severe disorder related to traumatic events. Women are disproportionately affected by PTSD than men and are more at risk in the occurrence of sexual assault victimization. Estimates suggest that 50% of women develop PTSD following sexual assault and successful clinical management can be challenging. Growing evidence has implicated neural, immune, and endocrine alterations underpinning PTSD, but only few studies have assessed the evolution of acute PTSD in women. OBJECTIVE: This study aims to measure whether the onset of PTSD is associated with accelerated aging in women following sexual assault. We hypothesize that the increase of allostatic load caused by PTSD leads to neuroprogression. We will implement a randomized clinical trial to compare responses to treatment with either interpersonal psychotherapy adapted for PTSD (IPT-PTSD) or the selective serotonin reuptake inhibitor sertraline. METHODS: We will include women between 18 and 45 years of age, who experienced sexual assault from 1 to 6 months before the initial evaluation, and present with a Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) diagnosis of PTSD. Baseline evaluation will comprise clinical and psychometric assessments, structural and functional magnetic resonance imaging, neuropsychological testing, polysomnography, evaluation of immune and endocrine parameters, and genetic analyses. Age-matched female healthy controls will be included and subjected to the same evaluation. Patients will be randomized for treatment in 1 of the 2 arms of the study for 14 weeks; follow-up will continue until 1 year after inclusion via treatment as usual. The researchers will collect clinical and laboratory data during periodic clinical assessments up to 1-year follow-up. RESULTS: Data collection started in early 2016 and will be completed by the end of the first semester of 2020. Analyses will be performed soon afterward, followed by the elaboration of several articles. Articles will be submitted in early 2021. This research project has obtained a grant from the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP 2014/12559-5). CONCLUSIONS: We expect to provide insight into the consequences of recent sexual assault exposure in women by investigating the degree of neuroprogression developing from an early stage of PTSD. We also expect to provide important evidence on the efficacy of a non-exposure psychotherapy (IPT-PTSD) to mitigate PTSD symptoms in recently sexually assaulted women. Further, we aim to obtain evidence on how treatment outcomes are associated with neuroprogression measures. TRIAL REGISTRATION: Brazilian Clinical Trials Registry RBR-3z474z; http://www.ensaiosclinicos.gov.br/rg/RBR-3z474z/. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/19162.

16.
Article in English, Spanish | MEDLINE | ID: mdl-33075541

ABSTRACT

INTRODUCTION: The administration of multiple esketamine doses has shown efficacy for unipolar and bipolar treatment-resistant depression (TRD). Nevertheless, the probability of responding or not after each dose in the real-world remains unknown. This study aimed to estimate it throughout four doses of esketamine, administrated via subcutaneous (SC). MATERIAL AND METHODS: We conducted a retrospective analysis of a case series of 70 patients with TRD who received treatment from the esketamine assistance program at Federal University of Sao Paulo, between April 2017 and December 2018. The SC injections were administrated weekly at a dose of 0.5-1.0mg/kg, in conjunction with patients' psychotropic drugs. Response was defined as a decrease of at least 50% in the Montgomery-Åsberg Depression Rating Scale between baseline and 24h after dose. We used hidden Markov modeling in order to estimate de probability of response after each esketamine injection. RESULTS: The probability of a patient that was a "non-responder" to become a "responder" following a SC injection of esketamine was 17.30% and the probability that this patient remains a "non-responder" was 82.70%. The probability of a patient that was a "responder" to remain as a "responder" was 95%. CONCLUSIONS: Patients with TRD who had not responded after the first dose of esketamine, still had a chance of responding after the subsequent dose administrated via SC.

17.
Palliat Med ; 34(6): 822-825, 2020 06.
Article in English | MEDLINE | ID: mdl-32186250

ABSTRACT

BACKGROUND: Depressive disorders are common among cancer patients. Ketamine can quickly relieve depression, and its subcutaneous administration appears to be as effective as and probably safer than its standard intravenous administration. Herein, we report a case verifying the antidepressant effect of a subcutaneous esketamine formulation. CASE PRESENTATION: A 65-year-old male with metastatic abdominal tumor reported sadness, weight loss, fatigue, hopelessness, insomnia, inattention, and reduced motivation. His scores on the visual analogical scale for pain and Montgomery-Asberg depression rating scale were 8/10 and 30/60, respectively. POSSIBLE COURSES OF ACTION: Monoaminergic antidepressants are effective, but their response is slow for end-of-life care. FORMULATION OF A PLAN: Esketamine was preferred because it possibly contributes to pain relief. It can repeatedly be infused intravenously, but was subcutaneously administered twice a week for safety reasons. OUTCOME: The patient showed continuous mood improvement, achieving depression remission on day 7. Pain relief was observed but without stability. His vital signs remained stable, and he remained calm, without major complaints. LESSONS FROM THE CASE: Repeated subcutaneous esketamine injections are possibly safe and effective in pain and depression relief in palliative care cancer patients. VIEW ON RESEARCH PROBLEMS, OBJECTIVES, OR QUESTIONS GENERATED BY THE CASE: Placebo-controlled studies with similar cases are needed to establish efficacy and safety.


Subject(s)
Abdominal Neoplasms , Depression , Ketamine , Pain , Abdominal Neoplasms/complications , Aged , Antidepressive Agents/therapeutic use , Depression/drug therapy , Depression/etiology , Humans , Ketamine/administration & dosage , Male , Pain/drug therapy , Pain/etiology , Terminally Ill , Treatment Outcome
19.
Brain Imaging Behav ; 14(4): 961-970, 2020 Aug.
Article in English | MEDLINE | ID: mdl-30868400

ABSTRACT

Socioeconomic status (SES) during childhood is a well-documented life-course health determinant. Despite recent advances on characterizing brain structural variance associated with SES during development, how it influences brain's functional organization remains elusive. Associations between SES, an fMRI feature of regional spontaneous activity (fractional amplitude of low frequencies fluctuation, fALFF), and behavioral/emotional problems were investigated in a school-based sample of 655 Brazilian children. A voxel-by-voxel approach was applied in order to map brain regions where fALFF was correlated with SES. Based on compelling previous evidence, we hypothesized that fALFF should be associated with SES in areas involved in language processing or cognitive control. Further, we tested if the spontaneous activity in these mapped areas would also correlated with general, internalizing and externalizing problems. SES of children was found to be positively correlated with spontaneous activity in right superior temporal gyrus. In the exploratory analysis, the fALFF of this area was negatively correlated with the expression of internalizing problems. Extending previous behavioral and structural neuroimaging findings, we report an association between SES and the spontaneous activity of a brain area enrolled in the extended language network. This finding is consistent with the hypothesis that the variability on linguistic environment according to SES lead to different developmental trajectories of functional networks instantiating language.


Subject(s)
Brain Mapping , Magnetic Resonance Imaging , Brain/diagnostic imaging , Child , Humans , Social Class , Temporal Lobe/diagnostic imaging
20.
Epilepsy Behav ; 100(Pt A): 106512, 2019 11.
Article in English | MEDLINE | ID: mdl-31574426

ABSTRACT

Seizure recurrence (SR) after epilepsy surgery in patients with medically resistant temporal lobe epilepsy and mesial temporal sclerosis (TLE-MTS) can compromise medical treatment and quality of life (QOL). However, there is a scarcity of interventions specifically addressing this issue in the literature. We aimed to evaluate the impact of a four-week psychotherapeutic intervention on the levels of resilience, behavioral symptoms, and QOL of patients with drug-resistant TLE-MTS who underwent corticoamygdalohippocampectomy (CAH) and who presented with late SR. Fifty patients who had been diagnosed with TLE-TMS, undergone CAH, and presented with late SR were included. The study instruments included a clinical and sociodemographic questionnaire and the Brazilian versions of the Connor-Davidson Resilience Scale (CD-RISC-10), the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E), the Interictal Dysphoric Disorder Inventory (IDDI), and the Quality of Life in Epilepsy Inventory (QOLIE-31). Significant reductions in the IDDI (p < 0.001) and NDDI-E (p < 0.001) scores, improvements in the CD-RISC-10 (p < 0.001) and QOLIE-31 (p < 0.001) scores, and positive correlations between resilience levels and QOL (p < 0.01), as well as a negative correlation between depressive symptoms and resilience (p < 0.01) and QOL (p < 0.01), were observed after the psychotherapeutic intervention. Improvements in the resilience levels and QOL, with concomitant reductions in depressive symptoms, were observed in patients with TLE-MTS and late SR after a brief psychotherapeutic intervention. Since there is a lack of studies that measured the impact of interventions in this patient subpopulation, these results may support the development of treatment strategies for this specific group.


Subject(s)
Drug Resistant Epilepsy/therapy , Epilepsy, Temporal Lobe/therapy , Psychotherapy/methods , Resilience, Psychological , Adult , Analysis of Variance , Brazil , Depression/psychology , Depressive Disorder/complications , Drug Resistant Epilepsy/psychology , Epilepsy, Temporal Lobe/psychology , Female , Humans , Male , Middle Aged , Quality of Life , Seizures/therapy , Surveys and Questionnaires , Young Adult
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