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1.
Int J Mol Sci ; 22(12)2021 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-34204780

RESUMO

The risk of accidental bromine (Br2) exposure to the public has increased due to its enhanced industrial use. Inhaled Br2 damages the lungs and the heart; however, adverse effects on the brain are unknown. In this study, we examined the neurological effects of inhaled Br2 in Sprague Dawley rats. Rats were exposed to Br2 (600 ppm for 45 min) and transferred to room air and cage behavior, and levels of glial fibrillary acidic protein (GFAP) in plasma were examined at various time intervals. Bromine exposure resulted in abnormal cage behavior such as head hitting, biting and aggression, hypervigilance, and hyperactivity. An increase in plasma GFAP and brain 4-hydroxynonenal (4-HNE) content also was observed in the exposed animals. Acute and delayed sympathetic nervous system activation was also evaluated by assessing the expression of catecholamine biosynthesizing enzymes, tryptophan hydroxylase (TrpH1 and TrpH2), and tyrosine hydroxylase (TyrH), along with an assessment of catecholamines and their metabolites. TyrH was found to be increased in a time-dependent manner. TrpH1 and TrpH2 were significantly decreased upon Br2 exposure in the brainstem. The neurotransmitter content evaluation indicated an increase in 5-HT and dopamine at early timepoints after exposure; however, other metabolites were not significantly altered. Taken together, our results predict brain damage and autonomic dysfunction upon Br2 exposure.


Assuntos
Comportamento Animal , Tronco Encefálico/patologia , Bromo/administração & dosagem , Bromo/efeitos adversos , Neurônios/patologia , Estresse Oxidativo , Administração por Inalação , Animais , Biomarcadores/metabolismo , Lesões Encefálicas/patologia , Catecolaminas/metabolismo , Feminino , Proteína Glial Fibrilar Ácida/metabolismo , Metaboloma , Neurônios/efeitos dos fármacos , Neurotransmissores/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ratos Sprague-Dawley , Triptofano Hidroxilase/metabolismo , Tirosina 3-Mono-Oxigenase/metabolismo
2.
Psychiatr Q ; 90(2): 385-394, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30796694

RESUMO

Insight is greatly impaired in Bipolar Disorder (BD), especially during mania. Cognitive impairment is also present in BD. Despite that, few studies have investigated a possible association between these two aspects. The main goal of the current study is to compare BD affective states regarding performance in cognitive testing and investigate clinical and cognitive predictors for insight loss in BD. The study investigated a sample of 65 patients who were evaluated in one of the BD phases (mania, euthymia or depression). All the subjects underwent neuropsychological evaluation and completed the Insight Scale for Affective Disorders (ISAD). The relationship between level of insight and clinical/cognitive variables was analyzed through multiple regression models. No significant differences were found among BD phases regarding performance on cognitive testing. Insight was more impaired in mania then in depression or euthymia. Predictors for loss of insight were: severity of manic symptoms and impairments in selective attention (Symbol search test), divided attention (Trail making test) and inhibition (Stroop test). The sample size is a potential limitation of the current study. Nevertheless, the results suggest this had limited impact, with group differences being detected for a number of variables. The results found have important clinical importance, suggesting, for example, that rehabilitation of specific cognitive skills may improve insight in BD.


Assuntos
Conscientização/fisiologia , Transtorno Bipolar/fisiopatologia , Disfunção Cognitiva/fisiopatologia , Autoavaliação Diagnóstica , Adulto , Atenção/fisiologia , Transtorno Bipolar/complicações , Disfunção Cognitiva/etiologia , Função Executiva/fisiologia , Feminino , Humanos , Inibição Psicológica , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
3.
Psychiatr Q ; 88(1): 47-53, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27012230

RESUMO

Suicide is a relatively common outcome along the course of bipolar disorder. Studies have shown a positive correlation between ideation or attempts of suicide and higher insight in schizophrenic patients. Nevertheless there are still few studies that evaluate the relationship between suicide and insight in mood disorders. Evaluate the relationship between insight and suicidal ideation or behavior in bipolar depression. A group of 165 bipolar patients were followed up along 1 year. Each patient's mood was assessed in every consultation according to DSM-IV-TR criteria. Suicidal ideation and behavior were prospectively assessed through item 3 of HAM-D whenever a major depressive episode was diagnosed. Insight was evaluated through the Insight Scale for Affective Disorders. A history of suicidal attempts was associated with worse insight in 60 patients with one episode of bipolar depression. The difference remained even when the supposed effect of depression over insight was controlled. No correlation between current suicidal ideation and insight level was found though. Our results suggest that a history of suicide attempts may correlate with higher impairment of insight in bipolar depression. No relationship was found between current suicidal ideation and insight.


Assuntos
Transtorno Bipolar/psicologia , Depressão/psicologia , Ideação Suicida , Tentativa de Suicídio/psicologia , Adulto , Brasil , Estudos de Coortes , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Tentativa de Suicídio/estatística & dados numéricos
4.
Psychiatr Q ; 88(1): 55-63, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27021904

RESUMO

Several studies on cognition in bipolar disorder (BD) have been developed on the last decade. Neuropsychological evaluation of attention in BD patients is fundamental since alterations in attention affect other cognitive functions. Evaluate if performance of BD patients in attention tests varies according to each phase of the disease and verify if there are differences in attention when comparing BD patients with normal controls. The study included 101 BD patients, with ages between 18 and 65 years, being 52 euthymic, 22 manic and 27 depressive, besides 30 normal controls. All subjects were evaluated though Hamilton Depression Scale, Young Mania Rating Scale and Global Assessment of Functioning, bipolar version (CGI-BP). Attention was evaluated through a neuropsychological battery. Normal controls had a better performance in selective attention tests than BD patients. No differences were found among manic, depressive and euthymic phases. Attention is markedly impaired in BD. Nevertheless, the results of this study do not imply that the severity of the attention deficit in BD patients varies according to decease phase.


Assuntos
Atenção , Transtorno Bipolar/psicologia , Cognição , Depressão/psicologia , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Adulto Jovem
5.
Int J Psychiatry Clin Pract ; 21(4): 266-270, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28554235

RESUMO

BACKGROUND: Although many studies have explored the effect of current affective episodes on insight into bipolar disorder, the potential interaction between current mood state and previous affective episodes has not been consistently investigated. OBJECTIVE: To explore the influence of dominant polarity, number of previous affective episodes and current affective state on insight in bipolar disorder patients in euthymia or mania. METHODS: A total of 101 patients with bipolar disorder were recruited for the study, including 58 patients in euthymia (30 with no defined predominant polarity and 28 with manic predominant polarity) and 43 in mania (26 with no defined predominant polarity and 17 with manic predominant polarity). Patients underwent a clinical assessment and insight was evaluated through the Insight Scale for Affective Disorders. RESULTS: Bipolar disorder patients in mania had worse insight than those in euthymia, with no effect of dominant polarity. In addition, positive psychotic symptoms showed a significant effect on insight and its inclusion as a covariate eliminated differences related to mood state. Finally, the number of previous manic or depressive episodes did not correlate with insight level. CONCLUSIONS: Mania is a predictor of loss of insight into bipolar disorder. However, it is possible that its contribution is linked to the more frequent presence of psychotic symptoms in this state. Dominant polarity and number/type of previous affective episodes have a limited impact on insight.


Assuntos
Conscientização/fisiologia , Transtorno Bipolar/fisiopatologia , Autoavaliação Diagnóstica , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
6.
Biomed Chromatogr ; 29(3): 353-6, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25056775

RESUMO

A dispersive liquid-liquid micellar microextraction (DLLMME) method coupled with ultra-high-performance liquid chromatography (UHPLC) using Diode Array Detector (DAD) detector was developed for the analysis of five pharmaceutical compounds of different nature in wastewaters. A micellar solution of a surfactant, polidocanol, as extraction solvent (100 µL) and chloroform as dispersive solvent (200 µL) were used to extract and preconcentrate the target analytes. Samples were heated above critical temperature and the cloudy solution was centrifuged. After removing the chloroform, the reduced volume of surfactant was then injected in the UHPLC system. In order to obtain high extraction efficiency, the parameters affecting the liquid-phase microextraction, such as time and temperature extraction, ionic strength and surfactant and organic solvent volume, were optimized using an experimental design. Under the optimized conditions, this procedure allows enrichment factors of up to 47-fold. The detection limit of the method ranged from 0.1 to 2.0 µg/L for the different pharmaceuticals. Relative standard deviations were <26% for all compounds. The procedure was applied to samples from final effluent collected from wastewater treatment plants in Las Palmas de Gran Canaria (Spain), and two compounds were measured at 67 and 113 µg/L in one of them.


Assuntos
Cromatografia Líquida de Alta Pressão/métodos , Microextração em Fase Líquida/métodos , Preparações Farmacêuticas/análise , Águas Residuárias/análise , Cafeína/análise , Carbamazepina/análise , Clorofórmio/química , Cetoprofeno/análise , Micelas , Naproxeno/análise , Ornidazol/análise , Concentração Osmolar , Polidocanol , Polietilenoglicóis/química , Solventes/química , Espanha , Temperatura , Poluentes Químicos da Água/análise
7.
Toxicol Sci ; 2023 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-36882182

RESUMO

Acute exposure to high concentrations of hydrogen sulfide (H2S) leads to sudden death and, if survived, lingering neurological disorders. Clinical signs include seizures, loss of consciousness, and dyspnea. The proximate mechanisms underlying H2S-induced acute toxicity and death have not been clearly elucidated. We investigated electrocerebral, cardiac and respiratory activity during H2S exposure using electroencephalogram (EEG), electrocardiogram (EKG) and plethysmography. H2S suppressed electrocerebral activity and disrupted breathing. Cardiac activity was comparatively less affected. To test whether Ca2+ dysregulation contributes to H2S-induced EEG suppression, we developed an in vitro real-time rapid throughput assay measuring patterns of spontaneous synchronized Ca2+ oscillations in cultured primary cortical neuronal networks loaded with the indicator Fluo-4 using the fluorescent imaging plate reader (FLIPR-Tetra®). Sulfide >5 ppm dysregulated synchronous calcium oscillation (SCO) patterns in a dose-dependent manner. Inhibitors of NMDA and AMPA receptors magnified H2S-induced SCO suppression. Inhibitors of L-type voltage gated Ca2+ channels and transient receptor potential channels prevented H2S-induced SCO suppression. Inhibitors of T-type voltage gated Ca2+ channels, ryanodine receptors, and sodium channels had no measurable influence on H2S-induced SCO suppression. Exposures to > 5 ppm sulfide also suppressed neuronal electrical activity in primary cortical neurons measured by multi-electrode array (MEA), an effect alleviated by pretreatment with the nonselective transient receptor potential channel inhibitor, 2-APB. 2-APB also reduced primary cortical neuronal cell death from sulfide exposure. These results improve our understanding of the role of different Ca2+ channels in acute H2S-induced neurotoxicity and identify transient receptor potential channel modulators as novel structures with potential therapeutic benefits.

8.
Genes (Basel) ; 14(12)2023 11 23.
Artigo em Inglês | MEDLINE | ID: mdl-38136941

RESUMO

Insulin is a powerful pleiotropic hormone that affects processes such as cell growth, energy expenditure, and carbohydrate, lipid, and protein metabolism. The molecular mechanisms by which insulin regulates muscle metabolism and the underlying defects that cause insulin resistance have not been fully elucidated. This study aimed to perform a microarray data analysis to find differentially expressed genes. The analysis has been based on the data of a study deposited in Gene Expression Omnibus (GEO) with the identifier "GSE22309". The selected data contain samples from three types of patients after taking insulin treatment: patients with diabetes (DB), patients with insulin sensitivity (IS), and patients with insulin resistance (IR). Through an analysis of omics data, 20 genes were found to be differentially expressed (DEG) between the three possible comparisons obtained (DB vs. IS, DB vs. IR, and IS vs. IR); these data sets have been used to develop predictive models through machine learning (ML) techniques to classify patients with respect to the three categories mentioned previously. All the ML techniques present an accuracy superior to 80%, reaching almost 90% when unifying IR and DB categories.


Assuntos
Diabetes Mellitus , Resistência à Insulina , Humanos , Resistência à Insulina/genética , Inteligência Artificial , Diabetes Mellitus/genética , Insulina/genética , Análise em Microsséries
9.
Arch Environ Occup Health ; 76(8): 526-538, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33750267

RESUMO

Hydrogen sulfide (H2S) is common in concentrated pig feed operations from the decomposition of manure. Ambient H2S is a respiratory tract irritant and an environmental stressor for caretakers and pigs. Influenza A virus (IAV), a zoonotic pathogen, has caused prior pandemics. The effects of H2S or IAV alone on the respiratory system have been investigated, but their interaction has not. We hypothesized that exposure to environmentally-relevant H2S concentrations increases the pathogenicity of IAV infection in swine. Thirty-five, three-week old pigs of mixed sex were exposed to breathing air or H2S via inhalation 6 hours daily for 12 days. After 7 days, pigs were inoculated with H3N2 IAV (or a placebo). Results showed that ambient H2S increased the severity of respiratory distress and lung pathology. H2S also suppressed IL-IL-1ß, IL-6 and IL-8 cytokine response in BALF and increased viral loads and nasal shedding.


Assuntos
Sulfeto de Hidrogênio/efeitos adversos , Vírus da Influenza A Subtipo H3N2/patogenicidade , Exposição por Inalação/efeitos adversos , Infecções por Orthomyxoviridae/patologia , Animais , Antígenos Virais/metabolismo , Citocinas/metabolismo , Modelos Animais de Doenças , Feminino , Pulmão/metabolismo , Pulmão/patologia , Masculino , Infecções por Orthomyxoviridae/metabolismo , Infecções por Orthomyxoviridae/virologia , Espécies Reativas de Nitrogênio/metabolismo , Índice de Gravidade de Doença , Suínos , Carga Viral
10.
Front Psychiatry ; 12: 641221, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34025473

RESUMO

Autobiographical memory is essential to ground a sense of self-identity, contributing to social functioning and the development of future plans, and being an essential source for the psychiatric interview. Previous studies have suggested loss of autobiographical episodic specificity in unipolar depression, but relatively fewer investigations have been conducted in bipolar disorder (BD) patients, particularly across different mood states. Similarly, there is a scarcity of systematic investigations about mood-congruent and mood-dependent memory in relation to autobiographical memory in BD. Considering this, a total of 74 patients with BD (24 in euthymia, 26 in mania, and 24 in depression) responded with autobiographical memories to cue words belonging to four categories: mania, depression, BD, and neutral. Episodic specificity was scored according to the Autobiographical Interview, with high intra- and inter-rater reliability. Results indicated that patients in mania generally re-experience more episodic details than those in depression. Depressed bipolar patients reported fewer details of perception and less time integration of memories than those in euthymia or mania. Words linked to depression and BD induced greater episodic re-experiencing than neutral words, just as words about BD provided greater episodic re-experiencing and more details of emotion/thoughts than words about mania. Words linked to depression provoked more time details about the recalled episodes than words on BD or neutral themes. No mood-congruent or mood-dependent effects were observed. Current findings may improve the ability of clinicians to conduct psychiatric interviews and the diagnosis of BD, with special attention to how memory details are generated across different mood states of the condition. Additionally, interventions to foster autobiographical recollection in BD may be developed, similar to what has already been done in the context of schizophrenia.

11.
JMIR Serious Games ; 8(3): e17979, 2020 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-32924950

RESUMO

BACKGROUND: Adolescents with chronic kidney disease have a hard time adhering to hemodialysis as a therapy, indicating a need to establish new alternatives for motivation and adherence to treatment. OBJECTIVE: The objective of this study was to develop and evaluate a serious game to stimulate and motivate adolescents undergoing hemodialysis. METHODS: We describe the technological production followed by a qualitative analysis. We invited 8 adolescents undergoing hemodialysis in the city Goiânia, located in the midwest of Brazil, to participate. The final convenience sample included 7 (87.5% of the target population) adolescents. The process was conducted in 3 phases: creation of a serious game, evaluation of its use, and observation of its motivating effect on behavioral modification with a focus on acquiring the necessary competence for self-care. RESULTS: An app (Bim) in the modality of a serious game was developed to be used during hemodialysis; the player was encouraged to take care of a character with daily actions during his or her treatment. The game was made available to adolescents aged 10-14 years. Mobile devices were offered during the hemodialysis treatment for a period of 30-40 minutes, 3 times a week for 60 days. The usage definitions of the game were freely chosen by the participants. The qualitative evaluation of the use of the Bim app showed that it encompasses scenarios and activities that enable the exercise of daily actions for the treatment of patients. The behavioral evaluation showed that the Bim app worked as a motivating stimulus for behavioral adherence to hemodialysis requirements. CONCLUSIONS: The easy-to-access app interface showed good operability for its users. The description of the character and proposed activities contributed to motivation and ability to cope with hemodialysis care.

12.
Molecules ; 14(1): 298-320, 2009 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-19136918

RESUMO

Phenolic derivatives are among the most important contaminants present in the environment. These compounds are used in several industrial processes to manufacture chemicals such as pesticides, explosives, drugs and dyes. They also are used in the bleaching process of paper manufacturing. Apart from these sources, phenolic compounds have substantial applications in agriculture as herbicides, insecticides and fungicides. However, phenolic compounds are not only generated by human activity, but they are also formed naturally, e.g., during the decomposition of leaves or wood. As a result of these applications, they are found in soils and sediments and this often leads to wastewater and ground water contamination. Owing to their high toxicity and persistence in the environment, both, the US Environmental Protection Agency (EPA) and the European Union have included some of them in their lists of priority pollutants. Current standard methods of phenolic compounds analysis in water samples are based on liquid-liquid extraction (LLE) while Soxhlet extraction is the most used technique for isolating phenols from solid matrices. However, these techniques require extensive cleanup procedures that are time-intensive and involve expensive and hazardous organic solvents, which are undesirable for health and disposal reasons. In the last years, the use of news methodologies such as solid-phase extraction (SPE) and solid-phase microextraction (SPME) have increased for the extraction of phenolic compounds from liquid samples. In the case of solid samples, microwave assisted extraction (MAE) is demonstrated to be an efficient technique for the extraction of these compounds. In this work we review the developed methods in the extraction and determination of phenolic derivatives in different types of environmental matrices such as water, sediments and soils. Moreover, we present the new approach in the use of micellar media coupled with SPME process for the extraction of phenolic compounds. The advantages of micellar media over conventional extractants are reduction of organic solvent, low cost, easy handling and shorter time procedures.


Assuntos
Poluentes Ambientais/isolamento & purificação , Fenóis/isolamento & purificação , Microextração em Fase Sólida/métodos , Poluentes Ambientais/análise , Micro-Ondas , Fenóis/análise
13.
Trends Psychiatry Psychother ; 41(2): 191-200, 2019 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-31291413

RESUMO

INTRODUCTION: The objective of this study was to identify whether mixed states in bipolar disorder (BD) are associated with more frequent suicidal behavior when compared to manic/hypomanic and depressive episodes. METHOD: We performed a systematic search of the scientific literature on the subject using the PubMed, ISI Web Of Science, PsycINFO and SciELO databases. The terms chosen for the search were (bipolar) AND (suicid*) AND (mixed). We selected original studies comparing suicidal behavior of patients in mixed states and suicidal behavior of patients in other BD phases. RESULTS: Sixteen papers fit the selection criteria. Twelve of the original 16 studies compared suicidal behavior in mixed states and pure mania, and the majority of these studies (n = 11) revealed that suicidal behavior was more frequent among individuals in mixed states. Five of the papers compared suicidal behavior between depressive and mixed phases of BD. One of these five papers reported more severe suicidal behavior in patients in mixed states and another described more frequent suicidal behavior in patients with pure depression. There were no significant statistical differences between groups in the remaining three of these five studies. CONCLUSION: During acute BD episodes, suicidal behavior is more strongly associated with mixed states than with pure mania or hypomania. However, it was not possible to demonstrate that the association between suicidal behavior and mixed states is stronger than the association between suicidal behavior and depressive phases. The results hereby presented are worth considering in clinical practice to better evaluate suicide risk and to prevent suicide.


Assuntos
Transtorno Bipolar/psicologia , Ideação Suicida , Tentativa de Suicídio/psicologia , Humanos
14.
Trends Psychiatry Psychother ; 41(4): 401-408, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31967199

RESUMO

INTRODUCTION: Although bipolar disorder (BD) is traditionally included among mood disorders, some authors believe that changes in energy and motor activity, rather than mood changes, represent the true cardinal symptoms in mania and depression. The aim of the current study was to identify which cluster of the Hamilton Depression Rating Scale (HAM-D) better distinguishes between mania, depression and euthymia. METHOD: A group of 106 patients with BD were followed for 13 years and repeatedly assessed with the HAM-D as well as with other clinical scales. To perform a comparison, HAM-D items were classified according to clinical criteria into three clusters: energy/activity symptoms, mood symptoms, and other symptoms. Item response theory (IRT) analyses were performed to provide a test information curve for those three clusters. We measured the prevalence of one cluster of symptoms over the other two throughout the latent trait. RESULTS: Considering HAM-D items individually, the IRT analysis revealed that there was a mixture of mood and energy/activity symptoms among the most discriminative items, both in depression and in euthymia. However, in mania, only energy/activity symptoms - i.e., general somatic symptoms and retardation - were among the most informative items. Considering the classification of items, both in depression as in mania, the energy/activity cluster was more informative than the mood cluster according to the IRT analysis. CONCLUSION: Our data reinforce the view of hyperactivity and motor retardation as cardinal changes of mania and depression, respectively.


Assuntos
Afeto , Transtorno Bipolar/diagnóstico , Depressão/diagnóstico , Escalas de Graduação Psiquiátrica , Agitação Psicomotora/diagnóstico , Transtorno Bipolar/psicologia , Depressão/psicologia , Feminino , Humanos , Entrevista Psicológica , Masculino , Pessoa de Meia-Idade , Atividade Motora , Agitação Psicomotora/psicologia
15.
Anal Bioanal Chem ; 391(3): 725-33, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18224471

RESUMO

The establishment of new analytical methods which improve quality and sensitivity in the determination of environmental pollutants in liquid and solid samples is demanded. The use of micellar systems have become an advantageous tool for the extraction of pollutant compounds, due to their easy handling, biodegradability, and the one-step procedure, and they are compatible with the hydroalcoholic mobile phases used in HPLC. The focus of this review is to present recently developed methods and the main trends in the use of micellar media combined with solid-phase microextraction and solid-phase extraction in the chromatographic analysis of organic compounds in different types of environmental matrix, including water, sediments, and biological samples. Selected samples illustrate the benefits of these systems in the whole of analytical process. The advantages of micellar media over conventional extractants are reduction of solvent usage, low cost, easy handling, and non-toxic procedure.


Assuntos
Monitoramento Ambiental/métodos , Poluentes Ambientais/análise , Compostos Orgânicos/análise , Extração em Fase Sólida/métodos , Animais , Cromatografia Líquida de Alta Pressão/métodos , Monitoramento Ambiental/instrumentação , Humanos , Micelas , Sensibilidade e Especificidade
16.
Clin Schizophr Relat Psychoses ; 12(3): 142-144, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-27454215

RESUMO

Although a variety of metabolic, toxic, psychiatric, and neurologic conditions can produce catatonic syndromes, it is less widely recognized that this state may be caused by epilepsy. We present the case of a woman with catatonic behavior, which she could not recall. She also exhibited olfactory, auditory and visual hallucinations. An EEG demonstrated diffuse abnormal electrical activity, mainly on left temporal and frontal areas. Treatment with anticonvulsant drugs yielded excellent response.


Assuntos
Catatonia/diagnóstico , Epilepsia/diagnóstico , Transtornos Psicóticos/diagnóstico , Catatonia/etiologia , Eletroencefalografia , Epilepsia/complicações , Epilepsia/tratamento farmacológico , Feminino , Humanos , Pessoa de Meia-Idade , Transtornos Psicóticos/etiologia
17.
Braz J Psychiatry ; 40(3): 233-237, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29160338

RESUMO

OBJECTIVE: To evaluate how well symptom rating scales differentiate bipolar disorder (BD) episode types. METHODS: One hundred and six patients with BD were followed for 13 years. At each visit, the following clinical scales were administered: Young Mania Rating Scale (YMRS), Hamilton Depression Scale (HAM-D) and Clinical Global Impressions scale for use in bipolar illness (CGI-BP). To perform a comparison between the affective states of BP, three time points in each patient's follow-up period were chosen for evaluation: the most severe manic episode, the most severe depressive episode, and the euthymic period with least symptoms. Canonical discriminant analyses (CDA) were performed to identify which symptoms best discriminated episodes. RESULTS: CDA revealed HAM-D was worse than YMRS and CGI-BP to discriminate mood states. The items evaluating increased motor activity in YMRS (2, increased motor activity/energy) and HAM-D (9, agitation) were the best to distinguish mania, depression, and euthymia. In contrast, HAM-D item 8 (retardation) and the HAM-D and YMRS items related to mood symptoms were less important and precise. CONCLUSION: Higher levels of energy or activity should be considered a core symptom of mania. However, our results do not confirm the association between a decrease in energy or activity and depression. HAM-D probably does not assess motor activity adequately.


Assuntos
Transtorno Bipolar/psicologia , Transtorno Depressivo/psicologia , Atividade Motora/fisiologia , Escalas de Graduação Psiquiátrica , Adolescente , Adulto , Instituições de Assistência Ambulatorial , Antipsicóticos/uso terapêutico , Transtorno Bipolar/diagnóstico , Transtorno Depressivo/tratamento farmacológico , Análise Discriminante , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
18.
Trends Psychiatry Psychother ; 40(3): 210-215, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30304117

RESUMO

INTRODUCTION: In recent years, the association between temperament and clinical characteristics of mood disorders has been studied. Most bipolar patients show deficits in their awareness of signs and symptoms. The relationship between affective temperament and insight in bipolar patients has not been carried out in the literature so far. OBJECTIVE: To evaluate the relationship between affective temperament and insight in bipolar disorder. METHOD: A group of 65 bipolar patients were followed during a year. Patients underwent a clinical assessment and were diagnosed using criteria from the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5). Insight was evaluated through the Insight Scale for Affective Disorders (ISAD), and affective temperament, through the TEMPS-Rio de Janeiro. The relationship between affective temperament and insight was explored with Spearman rho correlations between scores on each item of the ISAD and on the TEMPS-Rio de Janeiro subscales. RESULTS: In euthymic phases, bipolars with depressive temperament were associated with a higher level of insight about the consequences of the disorder; when in mania, patients showed better insight about having an affective disorder, presenting psychomotor alterations, and suffering from guilt or grandiosity. Similarly, bipolar patients with higher scores of anxious temperament, when in mania, had better insight on alterations in attention. Bipolar patients with higher scores of hyperthymic temperament, when in mania, showed the worst insight about thought disorder. CONCLUSION: In addition to being determined by the phase of the disease and several varying symptoms, the level of insight in bipolar patients is also influenced by affective temperament.


Assuntos
Afeto , Transtorno Bipolar/psicologia , Autoimagem , Adulto , Idoso , Depressão , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Metacrilatos , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Adulto Jovem
19.
Ann N Y Acad Sci ; 1408(1): 61-78, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29239480

RESUMO

Hydrogen sulfide (H2 S) is a highly neurotoxic gas. Acute exposure can lead to neurological sequelae among survivors. A drug for treating neurological sequelae in survivors of acute H2 S intoxication is needed. Using a novel mouse model we evaluated the efficacy of cobinamide (Cob) for increasing survival of, and reducing neurological sequalae in, mice exposed to sublethal doses of H2 S. There were two objectives: (1) to determine the dose-response efficacy of Cob and (2) to determine the effective therapeutic time window of Cob. To explore objective 1, mice were injected intramuscularly with Cob at 0, 50, or 100 mg/kg at 2 min after H2 S exposure. For objective 2, mice were injected intramuscularly with 100 mg/kg Cob at 2, 15, and 30 min after H2 S exposure. For both objectives, mice were exposed to 765 ppm of H2 S gas. Cob significantly reduced H2 S-induced lethality in a dose-dependent manner (P < 0.05). Cob-treated mice exhibited significantly fewer seizures and knockdowns compared with the H2 S-exposed group. Cob also reversed H2 S-induced weight loss, behavioral deficits, neurochemical changes, cytochrome c oxidase enzyme inhibition, and neurodegeneration in a dose- and time-dependent manner (P < 0.01). Overall, these findings show that Cob increases survival and is neuroprotective in a mouse model of H2 S-induced neurological sequelae.


Assuntos
Cobamidas/farmacologia , Transtornos Mentais/prevenção & controle , Convulsões/prevenção & controle , Redução de Peso/efeitos dos fármacos , Animais , Relação Dose-Resposta a Droga , Sulfeto de Hidrogênio/toxicidade , Masculino , Transtornos Mentais/induzido quimicamente , Camundongos Endogâmicos C57BL , Modelos Neurológicos , Convulsões/induzido quimicamente , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Complexo Vitamínico B/farmacologia
20.
Trends Psychiatry Psychother ; 39(4): 264-269, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29267509

RESUMO

INTRODUCTION: Affective state may influence insight, especially regarding mania. Nevertheless, studies have so far suggested that depression seems not to significantly impair insight. To the best of our knowledge, this study pioneers the evaluation of how insight variations in bipolar depression correlate with clinical variables. METHOD: A group of 165 bipolar patients, 52 of whom had depressive episodes according to DSM-5 criteria, were followed during a year. All patients underwent clinical assessment, and insight was evaluated through the Insight Scale for Affective Disorders (ISAD). Repeated-measures ANOVA was calculated comparing scores on the four ISAD factors (insight into symptoms, the condition itself, self-esteem and social relationships) in order to investigate differences in insight according to different objects. Correlational analysis explored which clinical symptoms were linked to reduced insight. RESULTS: Worse total insight correlated with suicide attempt/ideation and fewer subsyndromal manic symptoms such as mood elevation, increased energy and sexual interest. Worse self-esteem insight was associated with not only suicide ideation/attempt but also with activity reduction and psychomotor retardation. Worse symptom insight also correlated with psychomotor retardation. Better insight into having an affective disorder was associated with more intense hypochondria symptoms. Finally, worse insight into having an illness was associated with psychotic episodes. CONCLUSION: Our study found that symptoms other than psychosis - suicide ideation, psychomotor retardation and reduction of activity and work - correlate with insight impairment in bipolar depression.


Assuntos
Transtorno Bipolar/psicologia , Autoimagem , Adulto , Afeto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Exercício Físico , Feminino , Humanos , Relações Interpessoais , Masculino , Pessoa de Meia-Idade , Motivação , Testes Psicológicos , Comportamento Sexual , Comportamento Social , Suicídio , Adulto Jovem
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