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Posture and body image in individuals with major depressive disorder: a controlled study; Postura e imagem corporal em indivíduos com depressão: um estudo controle

CANALES, Janette Zamudio; CORDÁS, Táki Athanássios; FIQUER, Juliana Teixeira; CAVALCANTE, André Furtado; MORENO, Ricardo Alberto
Fonte: Associação Brasileira de Psiquiatria - ABP Publicador: Associação Brasileira de Psiquiatria - ABP
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.44%
OBJECTIVE: In this study, we aimed to quantify posture and body image in patients with major depressive disorder during episodes and after drug treatment, comparing the results with those obtained for healthy volunteers. METHOD: Over a 10-week period, we evaluated 34 individuals with depression and 37 healthy volunteers. Posture was assessed based on digital photos of the subjects; CorelDRAW software guidelines and body landmarks were employed. Body image was evaluated using the Body Shape Questionnaire. RESULTS: During depressive episodes (in comparison with the post-treatment period), patients showed increased head flexion (p < 0.001), increased thoracic kyphosis (p < 0.001), a trend toward left pelvic retroversion (p = 0.012) and abduction of the left scapula (p = 0.046). During remission, patient posture was similar to that of the controls. At week 1 (during the episode), there were significant differences between the patients and the controls in terms of head flexion (p < 0.001) and thoracic kyphosis (p < 0.001); at weeks 8-10 (after treatment), such differences were seen only for shoulder position. The mean score on the Body Shape Questionnaire was 90.03 during the depressive episode, compared with 75.82 during remission (p = 0.012) and 62.57 for the controls. CONCLUSION: During episodes of depression...

Reduced medial prefrontal N-Acetyl-Aspartate levels in pediatric major depressive disorder: A multi-voxel in vivo (1)H spectroscopy study

OLVERA, Rene Luis; CAETANO, Sheila C.; STANLEY, Jeffrey A.; CHEN, Hua-Hsuan; NICOLETTI, Mark; HATCH, John P.; FONSECA, Manoela; PLISZKA, Steven R.; SOARES, Jair C.
Fonte: ELSEVIER IRELAND LTD Publicador: ELSEVIER IRELAND LTD
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.31%
There is increasing evidence of a reciprocal fronto-limbic network in the pathogenesis of mood disorders. Prior in vivo proton ((1)H) spectroscopy studies provide evidence of abnormal neurochemical levels in the cingulate and dorsolateral prefrontal cortex (DLPFC) of adult subjects with major depressive disorder (MOD). We examined whether similar abnormalities occur in children and adolescents with MDD. We collected two-dimensional multi-voxel in vivo 1H spectroscopy data at 1.5 Tesla to quantify levels of N-acetyl-aspartate (NAA), glycerolphosphocholine plus phosphocholine (GPC + PC), and phosphocreatine plus creatine (PCr + Cr) in the DLPFC, medial prefrontal cortex (MPFC), and anterior cingulate (AC) of children and adolescents aged 8-17 years with MDD (n = 16) compared with healthy control subjects (n = 38). Analysis of covariance with age and gender as covariates was performed. MDD subjects showed significantly lower levels of NAA in the right MPFC and right AC than controls. MDD subjects also had significantly lower levels of GPC + PC in the right AC than control subjects. There were no significant differences in other metabolites in the studied regions. Pediatric patients with MDD exhibit neurochemical alterations in prefrontal cortex regions that are important in the monitoring and regulation of emotional states. (C) 2010 Elsevier Ireland Ltd. All rights reserved.; Krus Endowed Chair in Psychiatry (UTHSCSA); UTHSCSA GCRC[M01-RR-01346]; Capes Foundation (Brazil); [K23-MH068280]; [MH 69774]; [RR 020571]

Normal metabolite levels in the left dorsolateral prefrontal cortex of unmedicated major depressive disorder patients: A single voxel (1)H spectroscopy study

NERY, Fabiano G.; STANLEY, Jeffrey A.; CHEN, Hua-Hsuan; HATCH, John P.; NICOLETTI, Mark A.; MONKUL, Emel Serap; MATSUO, Koji; CAETANO, Sheila C.; PELUSO, Marco A.; NAJT, Pablo; SOARES, Jair C.
Fonte: ELSEVIER IRELAND LTD Publicador: ELSEVIER IRELAND LTD
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.27%
Few proton magnetic resonance spectroscopy ((1)H spectroscopy) studies have investigated the dorsolateral prefrontal cortex (DLPFC), a key region in the pathophysiology of major depressive disorder (MDD). We used (1)H spectroscopy to verify whether MDD patients differ from healthy controls (HQ in metabolite levels in this brain area. Thirty-seven unmedicated DSM-IV MDD patients were compared with 40 HC. Subjects underwent a short echo-time (1)H spectroscopy examination at 1.5 T, with an 8-cm(3) single voxel placed in the left DLPFC. Reliable absolute metabolite levels of N-acetyl aspartate (NAA), phosphocreatine plus creatine (PCr+Cr), choline-containing compounds (GPC+PC), myo-inositol, glutamate plus glutamine (Glu+Gln), and glutamate were obtained using the unsuppressed water signal as an internal reference. Metabolite levels in the left DLPFC did not statistically differ between MDD patients and HC. We found an interaction between gender and diagnosis on PCr+Cr levels. Male MDD patients presented lower levels of PCr+Cr than male HC, and female MDD patients presented higher levels of PCr+Cr than female HC. Moreover, length of illness was inversely correlated with NAA levels. These findings suggest that there is not an effect of diagnosis on the left DLPFC neurochemistry. Possible effects of gender on PCr+Cr levels of MDD patients need to be further investigated. (C) 2009 Elsevier Ireland Ltd. All rights reserved.; UTHSCSA GCRC[M01-RR-01346]; Krus Endowed Chair in Psychiatry (UTHSCSA); Veterans Administration (VA Merit Review); CAPES Foundation (Brazil); CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico...

TEMPERAMENT AND CHARACTER TRAITS IN MAJOR DEPRESSIVE DISORDER: INFLUENCE OF MOOD STATE AND RECURRENCE OF EPISODES

NERY, Fabiano G.; HATCH, John P.; NICOLETTI, Mark A.; MONKUL, E. Serap; NAJT, Pablo; MATSUO, Koji; CLONINGER, C. Robert; SOARES, Jair C.
Fonte: WILEY-LISS Publicador: WILEY-LISS
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
66.42%
Background: The objective of this study was to compare personality traits between major depressive disorder (MDD) patients and healthy comparison subjects (HC) and examine if personality traits in patients are associated with specific clinical characteristics of the disorder. Methods: Sixty MDD patients (45 depressed, 15 remitted) were compared to 60 HC using the Temperament and Character Inventory. Analysis of covariance, with age and gender as covariates, was used to compare the mean Temperament and Character Inventory scores among the subject groups. Results: Depressed MDD patients scored significantly higher than HC on novelty seeking, harm avoidance, and self-transcendence and lower on reward dependence, self-directedness, and cooperativeness. Remitted MDD patients scored significantly lower than HC only on self-directedness. Comorbidity with anxiety disorder had a main effect only on harm avoidance. Harm avoidance was positively correlated with depression intensity and with number of episodes. Self-directedness bad an inverse correlation with depression intensity. Conclusions: MDD patients present a different personality profile from HC, and these differences are influenced by mood state and comorbid anxiety disorders. When considering patients who have been in remission for some time...

"Avaliação volumétrica e neuroquímica do córtex pré-frontal dorsolateral esquerdo de pacientes pediátricos com transtorno depressivo maior: um estudo utilizando espectroscopia por ressonância magnética de próton" ; Volumetric and neurochemical evaluation of the left dorsolateral prefrontal cortex in pediatric patients with major depressive disorder: a study using Proton Magnetic Resonance Spectroscopy

Caetano, Sheila Cavalcante
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 12/01/2006 PT
Relevância na Pesquisa
66.27%
A Ressonância Magnética e a Espectroscopia por Ressonância Magnética de Hidrogênio têm sido empregadas em estudos anatômicos e neuroquímicos do Transtorno Depressivo Maior (TDM). Dezenove crianças com TDM e 24 controles saudáveis foram avaliados em um magneto de 1,5 Tesla (Philips Intera 8.1.1.). Em comparação aos controles saudáveis, crianças com TDM apresentaram: menores volumes de hipocampo esquerdo; e no voxel único em CPFDL esquerdo: menores níveis dos compostos de colina, e maiores níveis de mio-inositol em CPFDL esquerdo. Menores níveis dos compostos de colina podem refletir uma diminuição da renovação de membranas. Maiores níveis de mio-inositol podem representar uma alteração no sistema de segundos mensageiros intracelulares ; Magnetic resonance imaging and proton magnetic resonance spectroscopy have been applied to anatomical and neurochemical studies of Major Depressive Disorder (MDD). Nineteen children with MDD and 24 healthy controls were evaluated on a 1.5 Tesla (Philips Intera 8.1.1.) MRI. Compared to healthy controls, children with MDD presented: smaller left hippocampal volumes; and lower levels of choline-containing-compounds and higher myo-inositol levels in the left DLPFC. Lower levels of choline-containing-compounds in pediatric patients with MDD may reflect lower cell membrane turn-over. Higher myo-inositol levels in MDD may represent a disturbed secondary messengers system

Cognitive impairment and major depressive disorder in HIV infection and cerebrospinal fluid biomarkers

Almeida,Sergio Monteiro de
Fonte: Academia Brasileira de Neurologia - ABNEURO Publicador: Academia Brasileira de Neurologia - ABNEURO
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2013 EN
Relevância na Pesquisa
66.27%
Cognitive impairment and major depressive disorder (MDD) are common HIV-1 central nervous system (CNS) complications. Their frequencies in AIDS patients are 36% and 45%, respectively. The diagnoses of HIV cognitive impairment are made by clinical criteria, no single laboratory test or biomarker establishes the diagnosis. Factors of indirect neuronal injury related with the pathophysiology of the HIV infection in the CNS, are the factors studied as biomarkers. In the present no biomarker is established to the diagnosis of HIV cognitive impairment, much still needs to be done. We review in this paper some biomarkers in cerebrospinal fluid that could be valuable to the diagnosis of HIV cognitive impairment. Diagnosing depression in the context of HIV can be challenging, to identify a biomarker that could help in the diagnosis would be very important, although MDD risks and neurobiology are still poorly understood.

Novel neurotherapeutics in psychiatry: use and rationale of transcranial direct current stimulation in major depressive disorder

Moffa,Adriano H.; Valiengo,Leandro; Shiozawa,Pedro; Brunoni,André Russowsky
Fonte: Faculdade de Medicina da Universidade de São Paulo Publicador: Faculdade de Medicina da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2014 EN
Relevância na Pesquisa
66.33%
Background : Transcranial direct current stimulation (tDCS) is a novel non-pharmacological intervention being investigated for the treatment of major depressive disorder (MDD). Objective : To perform an updated review of tDCS for MDD. Method : Systematic review in Medline/PubMed and other databases of all clinical studies evaluating the clinical efficacy of tDCS in MDD, from the first date available to December/2013. Results : Out of 55 articles, 24 were included, being 6 open-label studies; 8 randomized, double-blind, sham-controlled trials; 2 follow-up studies; 2 meta-analyses and 6 case reports. We observed an improvement of 20-40% in depressive symptoms, being slightly better in open studies. Five randomized clinical trials displayed positive results. The meta-analyses presented mixed results; although none included the study of Brunoni et al. (2013) that represents almost 50% of the evaluated sample. Open-label studies and case reports also investigated tDCS in bipolar depression, post-stroke depression and employed different parameters of stimulation. Discussion : TDCS is a novel, promising treatment for MDD. Definite evidence from large, ongoing clinical trials will be available in the next years.

Morning and nocturnal serum melatonin rhythm levels in patients with major depressive disorder: an analytical cross-sectional study

Khaleghipour,Shahnaz; Masjedi,Mohsen; Ahade,Hassan; Enayate,Meersalahodin; Pasha,Gholamreza; Nadery,Farah; Ahmadzade,Gholamhossein
Fonte: Associação Paulista de Medicina - APM Publicador: Associação Paulista de Medicina - APM
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2012 EN
Relevância na Pesquisa
66.37%
CONTEXT AND OBJECTIVE: The pineal gland is an adaptive organ that precisely regulates the biological rhythms of melatonin brain hemostasis. Variation in the regulation of melatonin rhythms is a likely cause of depressive disorder. The purpose of this study was to measure serum melatonin levels in patients with major depressive disorder (MDD) and normal control subjects. DESIGN AND SETTING: Analytical cross-sectional study at the industrial medical unit of the Iron Smelting Company of Isfahan, Iran. METHODS: The morning and nocturnal serum melatonin levels of patients and controls were measured using the enzyme-linked immunosorbent assay (ELISA) method. All data were assessed using variance analysis. RESULTS: The morning and nocturnal serum melatonin levels of depressed and healthy subjects differed (P < 0.05). The nocturnal serum melatonin levels of depressed women were lower than those of depressed men (P < 0.05). CONCLUSIONS: The findings of this study showed that the nocturnal serum melatonin levels in the depressed patients were lower than in the controls. Thus, the peak melatonin phase in the depressed patients was reached with delay. CLINICAL TRIAL REGISTRATION NUMBER: NCT01357083

Psychodramatic psychotherapy combined with pharmacotherapy in major depressive disorder: an open and naturalistic study

Costa,Elisabeth Maria Sene; Antonio,Rosilda; Soares,Márcia Britto de Macedo; Moreno,Ricardo Alberto
Fonte: Associação Brasileira de Psiquiatria - ABP Publicador: Associação Brasileira de Psiquiatria - ABP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2006 EN
Relevância na Pesquisa
66.54%
OBJETIVE: Recent literature has highlighted the role of psychotherapy in the treatment of major depressive disorder. Combined therapies comprising both psychotherapy and pharmacotherapy have presented the best results. Although several kinds of psychotherapies have been studied in the treatment of depressive disorders, there remains a lack of data on psychodramatic psychotherapy in the treatment of major depressive disorder. The objective of this study was to evaluate the impact of psychodramatic psychotherapy (in a sample of major depressive disorder patients. METHOD: This is an open, naturalistic, controlled, non-randomized study. Twenty major depressive disorder patients (according to the DSM-IV criteria), under pharmacological treatment for depression, with Hamilton Depression Scale total scores between 7 and 20 (mild to moderate depression), were divided into two groups. Patients in the psychotherapeutic group took part in 4 individual and 24 structured psychodramatic group sessions, whilst subjects in the control group did not participate in this psychodramatic psychotherapy. Both groups were evaluated with the Social Adjustment Scale - Self Report and the Hamilton Depression Scale. RESULTS: Psychotherapeutic group patients showed a significant improvement according to the Social Adjustment Scale - Self Report and the Hamilton Depression Scale scores at endpoint...

Posture and body image in individuals with major depressive disorder: a controlled study

Canales,Janette Zamudio; Cordás,Táki Athanássios; Fiquer,Juliana Teixeira; Cavalcante,André Furtado; Moreno,Ricardo Alberto
Fonte: Associação Brasileira de Psiquiatria - ABP Publicador: Associação Brasileira de Psiquiatria - ABP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2010 EN
Relevância na Pesquisa
66.44%
OBJECTIVE: In this study, we aimed to quantify posture and body image in patients with major depressive disorder during episodes and after drug treatment, comparing the results with those obtained for healthy volunteers. METHOD: Over a 10-week period, we evaluated 34 individuals with depression and 37 healthy volunteers. Posture was assessed based on digital photos of the subjects; CorelDRAW software guidelines and body landmarks were employed. Body image was evaluated using the Body Shape Questionnaire. RESULTS: During depressive episodes (in comparison with the post-treatment period), patients showed increased head flexion (p < 0.001), increased thoracic kyphosis (p < 0.001), a trend toward left pelvic retroversion (p = 0.012) and abduction of the left scapula (p = 0.046). During remission, patient posture was similar to that of the controls. At week 1 (during the episode), there were significant differences between the patients and the controls in terms of head flexion (p < 0.001) and thoracic kyphosis (p < 0.001); at weeks 8-10 (after treatment), such differences were seen only for shoulder position. The mean score on the Body Shape Questionnaire was 90.03 during the depressive episode, compared with 75.82 during remission (p = 0.012) and 62.57 for the controls. CONCLUSION: During episodes of depression...

Genome-Wide Association Study of Major Depressive Disorder: New Results, Meta-Analysis, and Lessons Learned

Wray, N R; Pergadia, M L; Blackwood, D H R; Penninx, B W J H; Nyholt, D R; MacIntyre, D J; McGhee, K A; Maclean, A W; Smit, J H; Hottenga, J J; Willemsen, G; Middeldorp, C M; de Geus, E J C; McGuffin, P; Hickie, I B; van den Oord, E J C G; Macgregor, S; M
Fonte: Nature Publishing Group Publicador: Nature Publishing Group
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
66.36%
Major depressive disorder (MDD) is a common complex disorder with a partly genetic etiology. We conducted a genome-wide association study of the MDD2000+ sample (2431 cases, 3673 screened controls and >1 M imputed single-nucleotide polymorphisms (SNPs)). No SNPs achieved genome-wide significance either in the MDD2000+ study, or in meta-analysis with two other studies totaling 5763 cases and 6901 controls. These results imply that common variants of intermediate or large effect do not have main effects in the genetic architecture of MDD. Suggestive but notable results were (a) gene-based tests suggesting roles for adenylate cyclase 3 (ADCY3, 2p23.3) and galanin (GAL, 11q13.3); published functional evidence relates both of these to MDD and serotonergic signaling; (b) support for the bipolar disorder risk variant SNP rs1006737 in CACNA1C (P=0.020, odds ratio=1.10); and (c) lack of support for rs2251219, a SNP identified in a meta-analysis of affective disorder studies (P=0.51). We estimate that sample sizes 1.8- to 2.4-fold greater are needed for association studies of MDD compared with those for schizophrenia to detect variants that explain the same proportion of total variance in liability. Larger study cohorts characterized for genetic and environmental risk factors accumulated prospectively are likely to be needed to dissect more fully the etiology of MDD.

Data-Driven Subtypes of Major Depressive Disorder: A Systematic Review

van Loo, Hanna Maria; de Jonge, Peter; Romeijn, Jan-Willem; Kessler, Ronald; Schoevers, Robert A
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
66.37%
Background: According to current classification systems, patients with major depressive disorder (MDD) may have very different combinations of symptoms. This symptomatic diversity hinders the progress of research into the causal mechanisms and treatment allocation. Theoretically founded subtypes of depression such as atypical, psychotic, and melancholic depression have limited clinical applicability. Data-driven analyses of symptom dimensions or subtypes of depression are scarce. In this systematic review, we examine the evidence for the existence of data-driven symptomatic subtypes of depression. Methods: We undertook a systematic literature search of MEDLINE, PsycINFO and Embase in May 2012. We included studies analyzing the depression criteria of the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) of adults with MDD in latent variable analyses. Results: In total, 1176 articles were retrieved, of which 20 satisfied the inclusion criteria. These reports described a total of 34 latent variable analyses: 6 confirmatory factor analyses, 6 exploratory factor analyses, 12 principal component analyses, and 10 latent class analyses. The latent class techniques distinguished 2 to 5 classes, which mainly reflected subgroups with different overall severity: 62 of 71 significant differences on symptom level were congruent with a latent class solution reflecting severity. The latent class techniques did not consistently identify specific symptom clusters. Latent factor techniques mostly found a factor explaining the variance in the symptoms depressed mood and interest loss (11 of 13 analyses)...

Distúrbios do sono em pacientes com transtorno depressivo; Evaluation of sleep disorders complaints in outpatients with depressive disorder

Chellappa, Sarah Laxhmi
Fonte: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências da Saúde; Ciências da Saúde Publicador: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências da Saúde; Ciências da Saúde
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
66.53%
To evaluate sleep disorder complaints in outpatients with depressive disorder from a general hospital. Methods: An observational, cross-sectional study was carried out with a study sample composed of 70 patients (44 women and 26 men) with diagnosis of depressive disorder, according to the DSM-IV criteria. The patients were interviewed and evaluated by the Identification Questionnaire, the Sleep Habits Questionnaire and the Beck Depression Inventory (BDI). Results: In this study, 50 (71.3%) patients had recurrence of sleep disorder complaints. Mean BDI score was 35.83+8.85, with significant differences between patients with (38.50+8.70) and without (29.60+7.80) recurrence (p<0.05) and among patients with 1, 2, 3 and >3 episodes (p<0.05). In this study, 49 (70%) patients had insomnia and 21 (30%) had subjective excessive sleepiness. Significant differences were observed between the mean duration in months of the sleep disorders (7.16+2.10) and the depressive disorder (6.12+1.90) (p<0.05). Discussion: In the study sample, recurrence of sleep disorder complaints was high and significantly associated with severe depression. Insomnia was prevalent and the mean duration of sleep disorders was higher in relation to depressive disorder; Identificar e avaliar os transtornos do sono presentes em pacientes ambulatoriais com transtorno depressivo do Hospital Universitário Onofre Lopes...

Social factors associated with Major Depressive Disorder in homosexually active, gay men attending general practices in urban Australia

Mao, L.; Kidd, M.; Rogers, G.; Andrews, G.; Newman, C.; Booth, A.; Saltman, D.; Kippax, S.
Fonte: Public Health Assoc Australia Inc Publicador: Public Health Assoc Australia Inc
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
66.33%
OBJECTIVES: Social factors associated with Major Depressive Disorder (MDD) were identified among gay men attending high HIV caseload general practices in Sydney and Adelaide. METHODS: Men who visited four participating practices were invited to self-complete a survey. A self-screening tool (PHQ-9), based on the Diagnostic and Statistical Manual of Mental Disorders, version four (DSM-IV), was used to measure depressive disorders. RESULTS: The rate of MDD (PHQ-9 score 10 or above) among the 195 HIV-positive gay men was significantly higher than that among the 314 non-HIV-positive gay men (31.8% vs 20.1%, p=0.002). Current MDD was independently associated with younger age, lower income, recent major adverse life events, adopting denial and isolation as coping strategies, less social support, less gay community involvement and recent sexual problems. HIV-status, however, was not independently associated with MDD. CONCLUSION: Socio-economic hardship, interpersonal isolation and personal withdrawal were significantly and independently associated with major depression in this population of gay men. IMPLICATIONS: The study provides further evidence of health inequity affecting gay men in Australia. Structural health promotion approaches focused on homophobia and discrimination...

Putative transcriptomic biomarkers in the inflammatory cytokine pathway differentiate major depressive disorder patients from control subjects and bipolar disorder patients

Powell, T.R.; McGuffin, P.; D'Souza, U.M.; Cohen-Woods, S.; Hosang, G.M.; Martin, C.; Matthews, K.; Day, R.K.; Farmer, A.E.; Tansey, K.E.; Schalkwyk, L.C.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em //2014 EN
Relevância na Pesquisa
66.37%
Mood disorders consist of two etiologically related, but distinctly treated illnesses, major depressive disorder (MDD) and bipolar disorder (BPD). These disorders share similarities in their clinical presentation, and thus show high rates of misdiagnosis. Recent research has revealed significant transcriptional differences within the inflammatory cytokine pathway between MDD patients and controls, and between BPD patients and controls, suggesting this pathway may possess important biomarker properties. This exploratory study attempts to identify disorder-specific transcriptional biomarkers within the inflammatory cytokine pathway, which can distinguish between control subjects, MDD patients and BPD patients. This is achieved using RNA extracted from subject blood and applying synthesized complementary DNA to quantitative PCR arrays containing primers for 87 inflammation-related genes. Initially, we use ANOVA to test for transcriptional differences in a 'discovery cohort' (total n = 90) and then we use t-tests to assess the reliability of any identified transcriptional differences in a 'validation cohort' (total n = 35). The two most robust and reliable biomarkers identified across both the discovery and validation cohort were Chemokine (C-C motif) ligand 24 (CCL24) which was consistently transcribed higher amongst MDD patients relative to controls and BPD patients...

Neurotoxicity of major depressive disorder: a neuroimaging and neuropsychological study.

Serra Blasco, Maria
Fonte: [Barcelona] : Universitat Autònoma de Barcelona, Publicador: [Barcelona] : Universitat Autònoma de Barcelona,
Tipo: Tesis i dissertacions electròniques; info:eu-repo/semantics/doctoralThesis; info:eu-repo/semantics/publishedVersion Formato: application/pdf
Publicado em //2015 ENG
Relevância na Pesquisa
66.37%
Introducció El trastorn depressiu major (TDM), caracteritzat per sentiments de tristesa i/o apatia, malestar físic i dèficits cognitius, presenta un 50% de recaigudes i un 20% de cronificació. Les teories etiològiques més integradores postulen que les alteracions de matèria gris i els dèficits cognitius facilitarien la recurrència/cronifiació del episodi. No obstant, les àrees afectades són inconsistents entre els estudis, complicant la millora dels tractaments. A més, les estratègies terapèutiques per als pacients resistents als tractaments (DRT) són escasos, afetcant generalment la cognició, i dificultant una complerta recuperació. Així, es requereixen noves vies d'estudi centrades en la prevenció de la recurrència/cronificació dels pacients a través de la detecció de variables predictores individuals que optimitzin les opcions terapèutiques. Objectius E1: Investigar l'afectació de matèria gris cerebral en diferents estadis de la malaltia depressiva i determinar l'efecte de les carcateristiques clíniques en el seu volum. E2: Determinar els canvis metabòlics cerebrals que ocorren al aturar l'estimulació cerebral profunda (ECP) del cortex cingulat anterior subgenual (CASg) en pacients amb DRT. E3: Evaluar les funcions cognitives en pacients amb DRT abans i després de l'ECP del còrtex CASg). E4: Examinar el potencial predictiu de les dades cliniques i de neuroimatge estructural en el curs del TDM. Mètodes Es compara el volum de matèria gris (VMG) entre pacients amb TDM en diferents estadis de la malaltia amb controls sans a través de la tècnia de morfometria basada en el voxel (E1). Els pacients ressonats es contacten als 5 anys i es divideixen en 4 grups segons l'evolució clínica que han tingut. Es fa un anàlisi de regressió amb les dades cliniques i de neuroimatge basals com a variables predictores del curs observat (E3). Finalment s'administra una bateria neuropicològica abans i després de l'ECP del CAsg en pacients amb DRT...

Bisphenol A alters transcript levels of biomarker genes for major depressive disorder

Ribeiro-Varandas, Edna; Pereira, H. Sofia; Viegas, Wanda; Delgado, Margarida
Fonte: Instituto Politécnico de Lisboa Publicador: Instituto Politécnico de Lisboa
Tipo: Conferência ou Objeto de Conferência
Publicado em /11/2015 ENG
Relevância na Pesquisa
66.37%
Major depressive disorder is a moderately heritable disorder characterized by one or more major depressive episodes. Laboratory tests to suport MDD diagnosis are not available. Diagnosis and treatment are based on various signs and symptoms not always fitting into strict diagnostic categories. Research for biological markers of neuropsychiatric disorders has been a challenge.

Transtornos do sono em pacientes ambulatoriais com depressão; Sleep disorders in outpatients with depressive disorder

Chellappa, Sarah Laxhmi; Araújo, John Fontenele
Fonte: Universidade de São Paulo. Faculdade de Medicina. Instituto de Psiquiatria Publicador: Universidade de São Paulo. Faculdade de Medicina. Instituto de Psiquiatria
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf
Publicado em 01/01/2006 POR
Relevância na Pesquisa
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CONTEXTO: Os transtornos do sono são uma característica marcante do transtorno depressivo e podem ocorrer nos primeiros estágios da depressão, antecipá-la ou ser um sintoma residual. OBJETIVO: Avaliar as queixas de transtornos do sono em pacientes ambulatoriais com transtorno depressivo de um hospital geral. MÉTODOS: Foi realizado um estudo observacional, transversal, com uma amostra de 70 pacientes (44 mulheres e 26 homens) com diagnóstico de transtorno depressivo, segundo os critérios da DSM-IV. Os pacientes foram entrevistados e avaliados por meio da ficha de identificação do questionário de hábitos de sono e do Inventário de Depressão de Beck (IDB). RESULTADOS: Neste estudo, 50 (71,3%) pacientes apresentaram recorrência das queixas de transtornos do sono. A média dos escores obtida no IDB foi 35,83±8,85, com diferenças significativas entre os pacientes com (38,50±8,70) e sem (29,60±7,80) recorrência (p < 0,05) e entre pacientes com 1, 2, 3 e >; 3 episódios (p < 0,05) de transtornos do sono. Neste estudo, 49 (70%) pacientes apresentaram insônia e 21 (30%), sonolência excessiva subjetiva. Houve diferença significativa entre a duração média em meses dos transtornos do sono (7,16±2,10) e do transtorno depressivo (6...

Diretrizes da World Federation of Societies of Biological Psychiatry (WFSBP) para tratamento biológico de transtornos depressivos unipolares, 2ª parte: tratamento de manutenção do transtorno depressivo maior e tratamento dos transtornos depressivos crônicos e das depressões subliminares; World Federation of Societies of Biological Psychiatry (WFSBP) Guidelines for biological treatment of unipolar depressive disorders, part 2: maintenance treatment of major depressive disorder and treatment of chronic depressive disorders and subthreshold depressions

Bauer, Michael; Whybrow, Peter C.; Angst, Jules; Versiani, Marcio; Möller, Hans-Jürgen
Fonte: Universidade de São Paulo. Faculdade de Medicina. Instituto de Psiquiatria Publicador: Universidade de São Paulo. Faculdade de Medicina. Instituto de Psiquiatria
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 01/01/2009 POR
Relevância na Pesquisa
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Estas diretrizes práticas para o tratamento biológico de transtornos depressivos unipolares foram desenvolvidas por uma Força-Tarefa internacional da Federação Mundial de Sociedades de Psiquiatria Biológica (WFSBP). O objetivo ao desenvolver tais diretrizes foi rever sistematicamente todas as evidências existentes referentes ao tratamento de transtornos depressivos unipolares e produzir uma série de recomendações práticas com significado clínico e científico, baseadas nas evidências existentes. Têm como objetivo seu uso por todos os médicos que atendam e tratem pacientes com essas afecções. Os dados usados para o desenvolvimento das diretrizes foram extraídos primariamente de várias diretrizes e painéis nacionais de tratamento para transtornos depressivos, bem como de metanálises e revisões sobre a eficácia dos antidepressivos e outras intervenções de tratamento biológico identificadas por uma busca no banco de dados MEDLINE e Cochrane Library. A literatura identificada foi avaliada quanto à força das evidências sobre sua eficácia e, então, categorizada em quatro níveis de evidências (A a D). Esta primeira parte das diretrizes abrange definição, classificação, epidemiologia e evolução dos transtornos depressivos unipolares...

Clinical and electrophysiological effect of right and left repetitive transcranial magnetic stimulation in patients with major depressive disorder

García-Anaya,María; González-Olvera,Jorge; Ricardo-Garcell,Josefina; Armas,Gabriela; Miranda,Edgar; Reyes,Ernesto; Otero,Gloria Adelina
Fonte: Instituto Mexicano de Psiquiatría Ramón de la Fuente Publicador: Instituto Mexicano de Psiquiatría Ramón de la Fuente
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2011 EN
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Major Depressive Disorder (MDD) is a common psychiatric disorder that represents one of the main public health problems worldwide. It has been projected that for 2020 it will be the second cause of disability-adjusted life years just below ischemic heart disease. Quantitative electroencephalogram provides the opportunity to study cortical oscillatory activity across the different frequency bands. It constitutes an accessible tool to explore the clinical and neurophysiologic correlates underlying psychiatric disorders as well as the effect of diverse therapeutic options and the performance through cognitive tasks. Repetitive transcranial magnetic stimulation is a technique that allows the stimulation of the cerebral cortex noninvasively, relatively painlessly and with fairly few side effects. The vast majority of rTMS studies target left dorsolateral prefrontal cortex (DLPFC) based on imaging studies showing that left prefrontal cortex dysfunction is pathophysiologically linked to depression. However, there is some evidence implicating right PFC in the pathophysiology of depression. Comparison of antidepressant efficacy of diverse stimulation frequencies is relevant since a main concern around rTMS is its potential to induce seizures; hence we consider that frequency of stimulation is an important aspect to be studied. For this study we aimed to elucidate the clinical efficacy of rTMS comparing two groups of depressed patients stimulated over DLPFC...