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1.
Public Health ; 234: 16-23, 2024 Jun 25.
Artículo en Inglés | MEDLINE | ID: mdl-38924819

RESUMEN

OBJECTIVES: There have been concerns that the COVID-19 pandemic and the measures used to contain it impacted the cognitive health of older adults. We therefore examined the prevalence of subjective cognitive decline, and its associated risk factors and health consequencs, among dementia-free older adults 2 years into the pandemic in Switzerland. STUDY DESIGN: Population-based cohort study. METHODS: Prevalence of SCD was estimated using the cognitive complaint questionnaire administered to adults aged ≥65 years in June-September 2022 (Specchio-COVID19 cohort, N = 1414), and compared to prepandemic values from 2014 to 2018 (CoLaus|PsyCoLaus cohort, N = 1181). Associated risk factors and health consequences were assessed using logistic and/or linear regression. RESULTS: Prevalence of SCD in 2022 (18.9% [95% CI, 16.2-21.9]) was comparable to prepandemic levels in 2014-2018 (19.5% [17.2-22.1]). Risk factors included established risks for dementia-namely health issues, health behaviours, and depressive symptoms. Self-reported post-COVID, perceived worsening of mental health since the start of the pandemic, less frequent social club attendance, and increased loneliness were also risk factors for SCD. In turn, SCD was associated with poorer objective cognitive performance, difficulty performing instrumental activities of daily living, greater risk of falls, and lower well-being at one-year follow-up. CONCLUSIONS: While the overall prevalence of SCD in 2022 was comparable to prepandemic levels, we identified several pandemic-related risk factors for SCD, including perceived worsening of mental health and increased isolation since the start of the pandemic. These findings highlight the importance of mental health promotion strategies in reducing cognitive complaints and preventing cognitive decline.

2.
Mol Psychiatry ; 23(2): 400-412, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28070120

RESUMEN

Major mood disorders, which primarily include bipolar disorder and major depressive disorder, are the leading cause of disability worldwide and pose a major challenge in identifying robust risk genes. Here, we present data from independent large-scale clinical data sets (including 29 557 cases and 32 056 controls) revealing brain expressed protocadherin 17 (PCDH17) as a susceptibility gene for major mood disorders. Single-nucleotide polymorphisms (SNPs) spanning the PCDH17 region are significantly associated with major mood disorders; subjects carrying the risk allele showed impaired cognitive abilities, increased vulnerable personality features, decreased amygdala volume and altered amygdala function as compared with non-carriers. The risk allele predicted higher transcriptional levels of PCDH17 mRNA in postmortem brain samples, which is consistent with increased gene expression in patients with bipolar disorder compared with healthy subjects. Further, overexpression of PCDH17 in primary cortical neurons revealed significantly decreased spine density and abnormal dendritic morphology compared with control groups, which again is consistent with the clinical observations of reduced numbers of dendritic spines in the brains of patients with major mood disorders. Given that synaptic spines are dynamic structures which regulate neuronal plasticity and have crucial roles in myriad brain functions, this study reveals a potential underlying biological mechanism of a novel risk gene for major mood disorders involved in synaptic function and related intermediate phenotypes.


Asunto(s)
Cadherinas/genética , Trastornos del Humor/genética , Adulto , Amígdala del Cerebelo/fisiopatología , Trastorno Bipolar/genética , Encéfalo/fisiopatología , Cadherinas/metabolismo , Cognición/fisiología , Dendritas , Espinas Dendríticas , Trastorno Depresivo Mayor/genética , Femenino , Predisposición Genética a la Enfermedad/genética , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Plasticidad Neuronal , Neuronas , Personalidad/genética , Polimorfismo de Nucleótido Simple/genética , Factores de Riesgo , Sinapsis/genética , Sinapsis/metabolismo
3.
Psychol Med ; 48(6): 961-973, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-28929992

RESUMEN

BACKGROUND: There has been increasing evidence that chronic low-grade inflammation is associated with mood disorders. However, the findings have been inconsistent because of heterogeneity across studies and methodological limitations. Our aim is to prospectively evaluate the bi-directional associations between inflammatory markers including interleukin (IL)-6, tumor necrosis factor (TNF)-α and high sensitivity C-reactive protein (hsCRP) with mood disorders. METHODS: The sample consisted of 3118 participants (53.7% women; mean age: 51.0, s.d. 8.8 years), randomly selected from the general population, who underwent comprehensive somatic and psychiatric evaluations at baseline and follow-up (mean follow-up duration = 5.5 years, s.d. 0.6). Current and remitted mood disorders including bipolar and major depressive disorders (MDD) and its subtypes (atypical, melancholic, combined atypical and melancholic, and unspecified) were based on semi-structured diagnostic interviews. Inflammatory biomarkers were analyzed in fasting blood samples. Associations were tested by multiple linear and logistic regression models. RESULTS: Current combined MDD [ß = 0.29, 95% confidence interval (CI) 0.03-0.55] and current atypical MDD (ß = 0.32, 95% CI 0.10-0.55) at baseline were associated with increased levels of hsCRP at follow-up. There was little evidence for inflammation markers at baseline predicting mood disorders at follow-up. CONCLUSIONS: The prospective unidirectional association between current MDD subtype with atypical features and hsCRP levels at follow-up suggests that inflammation may be a consequence of this condition. The role of inflammation, particularly hsCRP that is critically involved in cardiovascular diseases, warrants further study. Future research that examines potential influences of medications on inflammatory processes is indicated.


Asunto(s)
Biomarcadores/sangre , Trastorno Depresivo Mayor/sangre , Trastorno Depresivo Mayor/epidemiología , Inflamación/sangre , Adulto , Anciano , Proteína C-Reactiva/análisis , Femenino , Humanos , Interleucina-6/sangre , Modelos Lineales , Modelos Logísticos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Suiza/epidemiología , Factor de Necrosis Tumoral alfa/sangre
4.
Mol Psychiatry ; 22(7): 1026-1034, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-27725658

RESUMEN

The mechanisms and temporal sequence underlying the association between major depressive disorder (MDD) and cardio-metabolic diseases are still poorly understood. Recent research suggests subtyping depression to study the mechanisms underlying its association with biological correlates. Accordingly, our aims were to (1) assess the prospective associations of the atypical, melancholic and unspecified subtypes of MDD with changes of fasting glucose, high-density lipoprotein-cholesterol, triglycerides, systolic blood pressure and the incidence of the metabolic syndrome, (2) determine the potential mediating role of inflammatory marker or adipokine concentrations, eating behaviors and changes in waist circumference during follow-up. Data stemmed from CoLaus|PsyCoLaus, a prospective cohort study including 35-66-year-old randomly selected residents of an urban area. Among the Caucasian participants who underwent the physical and psychiatric baseline evaluations, 2813 (87% participation rate) also accepted the physical follow-up exam (mean follow-up duration=5.5 years). Symptoms of mental disorders were elicited using a semi-structured interview. The atypical MDD subtype, and only this subtype, was prospectively associated with a higher incidence of the metabolic syndrome (OR=2.49; 95% CI 1.30-4.77), a steeper increase of waist circumference (ß=2.41; 95% CI 1.19-3.63) and independently of this, with a steeper increase of the fasting glucose level (ß=131; 95% CI 38-225) during follow-up. These associations were not attributable to or mediated by inflammatory marker or adipokine concentrations, eating behaviors, comorbid psychiatric disorders or lifestyle factors. Accordingly, our results further support the subtyping of MDD and highlight the particular need for prevention and treatment of metabolic consequences in patients with atypical MDD.


Asunto(s)
Trastorno Depresivo Mayor/complicaciones , Trastorno Depresivo Mayor/metabolismo , Adulto , Glucemia/metabolismo , HDL-Colesterol/sangre , Comorbilidad , Depresión/complicaciones , Trastorno Depresivo Mayor/clasificación , Trastorno Depresivo Mayor/diagnóstico , Femenino , Cardiopatías/genética , Cardiopatías/metabolismo , Humanos , Incidencia , Estilo de Vida , Masculino , Enfermedades Metabólicas/genética , Enfermedades Metabólicas/metabolismo , Síndrome Metabólico/epidemiología , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Suiza , Triglicéridos/sangre , Circunferencia de la Cintura
5.
Mol Psychiatry ; 21(10): 1391-9, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-26754954

RESUMEN

Anxiety disorders (ADs), namely generalized AD, panic disorder and phobias, are common, etiologically complex conditions with a partially genetic basis. Despite differing on diagnostic definitions based on clinical presentation, ADs likely represent various expressions of an underlying common diathesis of abnormal regulation of basic threat-response systems. We conducted genome-wide association analyses in nine samples of European ancestry from seven large, independent studies. To identify genetic variants contributing to genetic susceptibility shared across interview-generated DSM-based ADs, we applied two phenotypic approaches: (1) comparisons between categorical AD cases and supernormal controls, and (2) quantitative phenotypic factor scores (FS) derived from a multivariate analysis combining information across the clinical phenotypes. We used logistic and linear regression, respectively, to analyze the association between these phenotypes and genome-wide single nucleotide polymorphisms. Meta-analysis for each phenotype combined results across the nine samples for over 18 000 unrelated individuals. Each meta-analysis identified a different genome-wide significant region, with the following markers showing the strongest association: for case-control contrasts, rs1709393 located in an uncharacterized non-coding RNA locus on chromosomal band 3q12.3 (P=1.65 × 10(-8)); for FS, rs1067327 within CAMKMT encoding the calmodulin-lysine N-methyltransferase on chromosomal band 2p21 (P=2.86 × 10(-9)). Independent replication and further exploration of these findings are needed to more fully understand the role of these variants in risk and expression of ADs.


Asunto(s)
Trastornos de Ansiedad/genética , Estudios de Casos y Controles , Estudios de Asociación Genética/métodos , Predisposición Genética a la Enfermedad , Variación Genética , Estudio de Asociación del Genoma Completo/métodos , Genotipo , Humanos , Polimorfismo de Nucleótido Simple , Factores de Riesgo , Población Blanca/genética
6.
Acta Psychiatr Scand ; 135(6): 539-547, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28281293

RESUMEN

OBJECTIVE: Self-reports such as Hypomania Checklist (HCL-32) can be used to enhance recognition of bipolar disorders, but they are often too long and only validated in clinical samples. The objectives of this study are therefore to test whether (i) the HCL-32 can be used for screening in the community and (ii) whether two previously suggested shorter versions would do as well. METHOD: Data stemmed from the CoLaus|PsyColaus, a prospective cohort study which included randomly selected residents aged 35-66 years from an urban area. Participants underwent semistructured interviews to assess DSM-IV disorders and 1712 of them completed the HCL-32. RESULTS: Forty individuals (2.3%) were diagnosed as having BD. Compared to others, participants with BD scored significantly higher on the HCL-32. The HCL-32 had a sensitivity of 0.78 and specificity of 0.68. Very similar figures were found for two previously proposed shorter versions with 16 and 20 items. The results of confirmatory factor analysis and item response theory (IRT) models supported the postulated two-factor structure for the three HCL versions. CONCLUSION: Despite the low base rate of BD in this sample, the screening properties of the HCL-32 remained almost as good. Importantly, two previously proposed shorter versions performed as well, suggesting that those could be used without losing essential information.


Asunto(s)
Trastorno Bipolar/diagnóstico , Lista de Verificación , Adulto , Trastorno Bipolar/psicología , Análisis Factorial , Femenino , Humanos , Entrevista Psicológica , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Escalas de Valoración Psiquiátrica , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
7.
Soc Psychiatry Psychiatr Epidemiol ; 52(9): 1169-1182, 2017 09.
Artículo en Inglés | MEDLINE | ID: mdl-28748306

RESUMEN

PURPOSE: Given the broad range of biopsychosocial difficulties resulting from major depressive disorder (MDD), reliable evidence for predictors of improved mental health is essential, particularly from unbiased prospective community samples. Consequently, a broad spectrum of potential clinical and non-clinical predictors of improved mental health, defined as an absence of current major depressive episode (MDE) at follow-up, were examined over a 5-year period in an adult community sample. METHODS: The longitudinal population-based PsyCoLaus study from the city of Lausanne, Switzerland, was used. Subjects having a lifetime MDD with a current MDE at baseline assessment were selected, resulting in a subsample of 210 subjects. Logistic regressions were applied to the data. RESULTS: Coping styles were the most important predictive factors in the present study. More specifically, low emotion-oriented coping and informal help-seeking behaviour at baseline were associated with the absence of an MDD diagnosis at follow-up. Surprisingly, neither formal help-seeking behaviour, nor psychopharmacological treatment, nor childhood adversities, nor depression subtypes turned out to be relevant predictors in the current study. CONCLUSIONS: The paramount role of coping styles as predictors of improvement in depression found in the present study might be a valuable target for resource-oriented therapeutic models. On the one hand, the positive impact of low emotion-oriented coping highlights the utility of clinical interventions interrupting excessive mental ruminations during MDE. On the other hand, the importance of informal social networks raises questions regarding how to enlarge the personal network of affected subjects and on how to best support informal caregivers.


Asunto(s)
Adaptación Psicológica , Trastorno Depresivo Mayor/psicología , Trastorno Depresivo Mayor/terapia , Emociones , Conducta de Búsqueda de Ayuda , Adulto , Anciano , Trastorno Depresivo Mayor/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Suiza/epidemiología , Resultado del Tratamiento
8.
Acta Psychiatr Scand ; 133(3): 205-13, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26252157

RESUMEN

OBJECTIVE: It is suggested that age at onset (AAO) of bipolar I disorder (BP-I) is decreasing. We tested for a birth-cohort effect on AAO using admixture analysis. METHOD: A clinical sample of 3896 BP-I cases was analysed using two approaches: (i) in a subsample with untruncated AAO × birth year distribution (n = 1865), we compared the best-fitting model for the observed AAO in patients born ≤1960 and >1960, (ii) to control for potential confounders, two separate subsamples born ≤1960 and >1960 were matched for age at interview (n = 250), and a further admixture analysis was undertaken. RESULTS: The two approaches indicated that the proportion of cases in the early AAO category was significantly greater in cases born >1960; manic onsets were also more frequent in the early onset BP-I cases born >1960. CONCLUSION: The decrease in AAO of BP-I in recent birth-cohorts appears to be associated with an increase in the proportion of cases in the early onset subgroup; not with a decrease in the mean AAO in each putative subgroup. This could indicate temporal changes in exposure to risk factors for mania.


Asunto(s)
Trastorno Bipolar/epidemiología , Adulto , Edad de Inicio , Trastorno Bipolar/diagnóstico , Efecto de Cohortes , Femenino , Francia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo
9.
Psychol Med ; 45(10): 2215-25, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25698070

RESUMEN

BACKGROUND: Strategies to dissect phenotypic and genetic heterogeneity of major depressive disorder (MDD) have mainly relied on subphenotypes, such as age at onset (AAO) and recurrence/episodicity. Yet, evidence on whether these subphenotypes are familial or heritable is scarce. The aims of this study are to investigate the familiality of AAO and episode frequency in MDD and to assess the proportion of their variance explained by common single nucleotide polymorphisms (SNP heritability). METHOD: For investigating familiality, we used 691 families with 2-5 full siblings with recurrent MDD from the DeNt study. We fitted (square root) AAO and episode count in a linear and a negative binomial mixed model, respectively, with family as random effect and adjusting for sex, age and center. The strength of familiality was assessed with intraclass correlation coefficients (ICC). For estimating SNP heritabilities, we used 3468 unrelated MDD cases from the RADIANT and GSK Munich studies. After similarly adjusting for covariates, derived residuals were used with the GREML method in GCTA (genome-wide complex trait analysis) software. RESULTS: Significant familial clustering was found for both AAO (ICC = 0.28) and episodicity (ICC = 0.07). We calculated from respective ICC estimates the maximal additive heritability of AAO (0.56) and episodicity (0.15). SNP heritability of AAO was 0.17 (p = 0.04); analysis was underpowered for calculating SNP heritability of episodicity. CONCLUSIONS: AAO and episodicity aggregate in families to a moderate and small degree, respectively. AAO is under stronger additive genetic control than episodicity. Larger samples are needed to calculate the SNP heritability of episodicity. The described statistical framework could be useful in future analyses.


Asunto(s)
Trastorno Depresivo Mayor/genética , Predisposición Genética a la Enfermedad , Adolescente , Adulto , Edad de Inicio , Anciano , Anciano de 80 o más Años , Femenino , Genotipo , Alemania , Humanos , Entrevistas como Asunto , Modelos Lineales , Masculino , Persona de Mediana Edad , Fenotipo , Polimorfismo Genético , Hermanos , Reino Unido , Adulto Joven
10.
Mol Psychiatry ; 19(2): 209-13, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24126925

RESUMEN

There has been increasing attention to the subgroups of mood disorders and their boundaries with other mental disorders, particularly psychoses. The goals of the present paper were (1) to assess the familial aggregation and co-aggregation patterns of the full spectrum of mood disorders (that is, bipolar, schizoaffective (SAF), major depression) based on contemporary diagnostic criteria; and (2) to evaluate the familial specificity of the major subgroups of mood disorders, including psychotic, manic and major depressive episodes (MDEs). The sample included 293 patients with a lifetime diagnosis of SAF disorder, bipolar disorder and major depressive disorder (MDD), 110 orthopedic controls, and 1734 adult first-degree relatives. The diagnostic assignment was based on all available information, including direct diagnostic interviews, family history reports and medical records. Our findings revealed specificity of the familial aggregation of psychosis (odds ratio (OR)=2.9, confidence interval (CI): 1.1-7.7), mania (OR=6.4, CI: 2.2-18.7) and MDEs (OR=2.0, CI: 1.5-2.7) but not hypomania (OR=1.3, CI: 0.5-3.6). There was no evidence for cross-transmission of mania and MDEs (OR=.7, CI:.5-1.1), psychosis and mania (OR=1.0, CI:.4-2.7) or psychosis and MDEs (OR=1.0, CI:.7-1.4). The strong familial specificity of psychotic, manic and MDEs in this largest controlled contemporary family study challenges the growing assertion that the major types of mood disorders are manifestations of a common underlying diathesis.


Asunto(s)
Trastorno Bipolar/epidemiología , Trastorno Depresivo Mayor/epidemiología , Trastornos Psicóticos/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Trastorno Bipolar/diagnóstico , Trastorno Depresivo Mayor/diagnóstico , Susceptibilidad a Enfermedades , Salud de la Familia , Femenino , Humanos , Entrevista Psicológica , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Trastornos Psicóticos/diagnóstico , Adulto Joven
11.
Mol Psychiatry ; 18(2): 183-9, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22042228

RESUMEN

Large, rare copy number variants (CNVs) have been implicated in a variety of psychiatric disorders, but the role of CNVs in recurrent depression is unclear. We performed a genome-wide analysis of large, rare CNVs in 3106 cases of recurrent depression, 459 controls screened for lifetime-absence of psychiatric disorder and 5619 unscreened controls from phase 2 of the Wellcome Trust Case Control Consortium (WTCCC2). We compared the frequency of cases with CNVs against the frequency observed in each control group, analysing CNVs over the whole genome, genic, intergenic, intronic and exonic regions. We found that deletion CNVs were associated with recurrent depression, whereas duplications were not. The effect was significant when comparing cases with WTCCC2 controls (P=7.7 × 10(-6), odds ratio (OR) =1.25 (95% confidence interval (CI) 1.13-1.37)) and to screened controls (P=5.6 × 10(-4), OR=1.52 (95% CI 1.20-1.93). Further analysis showed that CNVs deleting protein coding regions were largely responsible for the association. Within an analysis of regions previously implicated in schizophrenia, we found an overall enrichment of CNVs in our cases when compared with screened controls (P=0.019). We observe an ordered increase of samples with deletion CNVs, with the lowest proportion seen in screened controls, the next highest in unscreened controls and the highest in cases. This may suggest that the absence of deletion CNVs, especially in genes, is associated with resilience to recurrent depression.


Asunto(s)
Variaciones en el Número de Copia de ADN/genética , Trastorno Depresivo/genética , Predisposición Genética a la Enfermedad , Distribución de Chi-Cuadrado , Estudios de Cohortes , Femenino , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Masculino , Recurrencia
12.
Mol Psychiatry ; 18(12): 1281-6, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23164817

RESUMEN

Candidate gene and genome-wide association studies have not identified common variants, which are reliably associated with depression. The recent identification of obesity predisposing genes that are highly expressed in the brain raises the possibility of their genetic contribution to depression. As variation in the intron 1 of the fat mass- and obesity-associated (FTO) gene contributes to polygenic obesity, we assessed the possibility that FTO gene may contribute to depression in a cross-sectional multi-ethnic sample of 6561 depression cases and 21,932 controls selected from the EpiDREAM, INTERHEART, DeCC (depression case-control study) and Cohorte Lausannoise (CoLaus) studies. Major depression was defined according to DSM IV diagnostic criteria. Association analyses were performed under the additive genetic model. A meta-analysis of the four studies showed a significant inverse association between the obesity risk FTO rs9939609 A variant and depression (odds ratio=0.92 (0.89, 0.97), P=3 × 10(-4)) adjusted for age, sex, ethnicity/population structure and body-mass index (BMI) with no significant between-study heterogeneity (I(2)=0%, P=0.63). The FTO rs9939609 A variant was also associated with increased BMI in the four studies (ß 0.30 (0.08, 0.51), P=0.0064) adjusted for age, sex and ethnicity/population structure. In conclusion, we provide the first evidence that the FTO rs9939609 A variant may be associated with a lower risk of depression independently of its effect on BMI. This study highlights the potential importance of obesity predisposing genes on depression.


Asunto(s)
Depresión/genética , Obesidad/genética , Polimorfismo de Nucleótido Simple/genética , Proteínas/genética , Dioxigenasa FTO Dependiente de Alfa-Cetoglutarato , Trastorno Depresivo Mayor/genética , Femenino , Predisposición Genética a la Enfermedad/genética , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Fenotipo
13.
Eur J Neurol ; 21(5): 700-7, e44-5, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24118249

RESUMEN

BACKGROUND AND PURPOSE: Recent evidence suggests that there may be more than one Gilles de la Tourette syndrome (GTS)/tic disorder phenotype. However, little is known about the common patterns of these GTS/tic disorder-related comorbidities. In addition, sex-specific phenomenological data of GTS/tic disorder-affected adults are rare. Therefore, this community-based study used latent class analyses (LCA) to investigate sex-related and non-sex-related subtypes of GTS/tic disorders and their most common comorbidities. METHODS: The data were drawn from the PsyCoLaus study (n = 3691), a population-based survey conducted in Lausanne, Switzerland. LCA were performed on the data of 80 subjects manifesting motor/vocal tics during their childhood/adolescence. Comorbid attention-deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder, depressive, phobia and panic symptoms/syndromes comprised the selected indicators. The resultant classes were characterized by psychosocial correlates. RESULTS: In LCA, four latent classes provided the best fit to the data. We identified two male-related classes. The first class exhibited both ADHD and depression. The second class comprised males with only depression. Class three was a female-related class depicting obsessive thoughts/compulsive acts, phobias and panic attacks. This class manifested high psychosocial impairment. Class four had a balanced sex proportion and comorbid symptoms/syndromes such as phobias and panic attacks. The complementary occurrence of comorbid obsessive thoughts/compulsive acts and ADHD impulsivity was remarkable. CONCLUSIONS: To the best of our knowledge, this is the first study applying LCA to community data of GTS symptoms/tic disorder-affected persons. Our findings support the utility of differentiating GTS/tic disorder subphenotypes on the basis of comorbid syndromes.


Asunto(s)
Caracteres Sexuales , Trastornos de Tic/clasificación , Trastornos de Tic/epidemiología , Adulto , Distribución por Edad , Anciano , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Depresión/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastorno Obsesivo Compulsivo/epidemiología , Fenotipo , Escalas de Valoración Psiquiátrica , Índice de Severidad de la Enfermedad , Suiza/epidemiología , Trastornos de Tic/psicología
14.
Mol Psychiatry ; 17(6): 604-11, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21502950

RESUMEN

There is evidence that obesity-related disorders are increased among people with depression. Variation in the FTO (fat mass and obesity associated) gene has been shown to contribute to common forms of human obesity. This study aimed to investigate the genetic influence of polymorphisms in FTO in relation to body mass index (BMI) in two independent samples of major depressive disorder (MDD) cases and controls. We analysed 88 polymorphisms in the FTO gene in a clinically ascertained sample of 2442 MDD cases and 809 controls (Radiant Study). In all, 8 of the top 10 single-nucleotide polymorphisms (SNPs) showing the strongest associations with BMI were followed-up in a population-based cohort (PsyCoLaus Study) consisting of 1292 depression cases and 1690 controls. Linear regression analyses of the FTO variants and BMI yielded 10 SNPs significantly associated with increased BMI in the depressive group but not the control group in the Radiant sample. The same pattern was found in the PsyCoLaus sample. We found a significant interaction between genotype and affected status in relation to BMI for seven SNPs in Radiant (P<0.0057), with PsyCoLaus giving supportive evidence for five SNPs (P-values between 0.03 and 0.06), which increased in significance when the data were combined in a meta-analysis. This is the first study investigating FTO and BMI within the context of MDD, and the results indicate that having a history of depression moderates the effect of FTO on BMI. This finding suggests that FTO is involved in the mechanism underlying the association between mood disorders and obesity.


Asunto(s)
Índice de Masa Corporal , Trastorno Depresivo Mayor/genética , Obesidad/genética , Polimorfismo de Nucleótido Simple/fisiología , Proteínas/genética , Proteínas/fisiología , Adulto , Anciano , Dioxigenasa FTO Dependiente de Alfa-Cetoglutarato , Estudios de Casos y Controles , Trastorno Depresivo Mayor/complicaciones , Trastorno Depresivo Mayor/fisiopatología , Femenino , Predisposición Genética a la Enfermedad/genética , Predisposición Genética a la Enfermedad/psicología , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Obesidad/complicaciones , Obesidad/fisiopatología
15.
Acta Psychiatr Scand ; 128(4): 282-93, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23216242

RESUMEN

OBJECTIVE: The aims of the present study were to assess the associations between mood, anxiety and substance use disorders, including their subtypes, and the prevalence of cardiovascular risk factors (CVRFs). METHOD: Thorough physical investigations, biological measures and standardized interview techniques were used to assess 3716 subjects of an urban area, aged 35-66 years. RESULTS: Atypical depression was associated with increased prevalence of overweight, diabetes and the metabolic syndrome (OR = 1.5, 95% C.I. 1.1-2.0; OR = 2.0, 95% C.I. 1.1-3.5, OR = 1.6, 95% C.I. 1.0-2.4 respectively), whereas decreased prevalence of overweight was found in melancholic (OR = 0.7, 95% C.I. 0.6-0.9) and unspecified depression (OR = 0.8, 95% C.I. 0.7-1.0). Alcohol abuse was associated with diabetes (OR = 1.8, 95% C.I. 1.1-2.9) and dyslipidemia (OR = 1.3, 95% C.I. 1.0-1.8), alcohol dependence with dyslipidemia only (OR = 1.4, 95% C.I. 1.0-2.0). Almost all mental disorders were associated with a lifetime history of regular cigarette smoking, and atypical depression, alcohol misuse and drug dependence were associated with inactivity. CONCLUSION: To conclude results emphasize the need to subtype depression and to pay particular attention to the atypical subtype. Comorbid alcohol misuse may further increase the cardiovascular risk. Efforts to diminish smoking in subjects with mental disorders could be crucial measures to reduce their high incidence of cardiovascular disease.


Asunto(s)
Alcoholismo/epidemiología , Enfermedades Cardiovasculares/epidemiología , Trastorno Depresivo/epidemiología , Adulto , Anciano , Comorbilidad , Trastorno Depresivo/clasificación , Diabetes Mellitus/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Riesgo , Conducta Sedentaria , Fumar/epidemiología , Suiza/epidemiología
17.
Pharmacogenomics J ; 11(4): 258-66, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20514076

RESUMEN

ß-Arrestin2 (ARRB2) is a component of the G-protein-coupled receptor complex and is involved in µ-opioid and dopamine D(2) receptor signaling, two central processes in methadone signal transduction. We analyzed 238 patients in methadone maintenance treatment (MMT) and identified a haplotype block (rs34230287, rs3786047, rs1045280 and rs2036657) spanning almost the entire ARRB2 locus. Although none of these single nucleotide polymorphisms (SNPs) leads to a change in amino-acid sequence, we found that for all the SNPs analyzed, with exception of rs34230287, homozygosity for the variant allele confers a nonresponding phenotype (n=73; rs1045280C and rs2036657G: OR=3.1, 95% CI=1.5-6.3, P=0.004; rs3786047A: OR=2.5, 95% CI=1.2-5.1, P=0.02) also illustrated by a 12-fold shorter period of negative urine screening (P=0.01). The ARRB2 genotype may thus contribute to the interindividual variability in the response to MMT and help to predict response to treatment.


Asunto(s)
Analgésicos Opioides/uso terapéutico , Arrestinas/genética , Metadona/uso terapéutico , Tratamiento de Sustitución de Opiáceos , Trastornos Relacionados con Opioides/genética , Trastornos Relacionados con Opioides/rehabilitación , Polimorfismo de Nucleótido Simple , Adolescente , Adulto , Anciano , Distribución de Chi-Cuadrado , Estudios Transversales , Femenino , Frecuencia de los Genes , Genotipo , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Farmacogenética , Fenotipo , Medicina de Precisión , Estudios Retrospectivos , Suiza , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven , Arrestina beta 2 , beta-Arrestinas
18.
Mol Psychiatry ; 15(6): 589-601, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-19107115

RESUMEN

Major depressive disorder (MDD) is a highly prevalent disorder with substantial heritability. Heritability has been shown to be substantial and higher in the variant of MDD characterized by recurrent episodes of depression. Genetic studies have thus far failed to identify clear and consistent evidence of genetic risk factors for MDD. We conducted a genome-wide association study (GWAS) in two independent datasets. The first GWAS was performed on 1022 recurrent MDD patients and 1000 controls genotyped on the Illumina 550 platform. The second was conducted on 492 recurrent MDD patients and 1052 controls selected from a population-based collection, genotyped on the Affymetrix 5.0 platform. Neither GWAS identified any SNP that achieved GWAS significance. We obtained imputed genotypes at the Illumina loci for the individuals genotyped on the Affymetrix platform, and performed a meta-analysis of the two GWASs for this common set of approximately half a million SNPs. The meta-analysis did not yield genome-wide significant results either. The results from our study suggest that SNPs with substantial odds ratio are unlikely to exist for MDD, at least in our datasets and among the relatively common SNPs genotyped or tagged by the half-million-loci arrays. Meta-analysis of larger datasets is warranted to identify SNPs with smaller effects or with rarer allele frequencies that contribute to the risk of MDD.


Asunto(s)
Trastorno Depresivo Mayor/genética , Estudio de Asociación del Genoma Completo , Población Blanca/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Europa (Continente) , Femenino , Genotipo , Humanos , Masculino , Metaanálisis como Asunto , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Recurrencia
19.
Rev Med Suisse ; 7(315): 2127-9, 2011 Nov 02.
Artículo en Francés | MEDLINE | ID: mdl-22187781

RESUMEN

Cardio-vascular diseases (CVD), their well established risk factors (CVRF) and mental disorders are common and co-occur more frequently than would be expected by chance. However, the mechanisms underlying this association are still poorly understood. The main study questions of PsyCoLaus, the psychiatric arm of CoLaus, are: 1) Do mental disorders increase vulnerability to CVRF and CVD? 2) Do CVRF and CVD promote the development of mental disorders? 3) Do CVRF/ CVD and mental disorders share common pathogenetic processes? The longitudinal project adds a comprehensive psychiatric evaluation to the CoLaus investigation. A better understanding of the psychological, physiological and behavioral links underlying CVD/ CVRF and mental disorders will result in the development of more specific and efficient strategies of prevention and treatment for both psychiatric and CVD/CVRF, two major elements of burden of disease.


Asunto(s)
Enfermedades Cardiovasculares/complicaciones , Enfermedades Cardiovasculares/epidemiología , Trastornos Mentales/complicaciones , Trastornos Mentales/epidemiología , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/psicología , Estudios de Cohortes , Comorbilidad , Humanos , Trastornos Mentales/etiología , Trastornos Mentales/fisiopatología , Prevalencia , Factores de Riesgo , Suiza/epidemiología
20.
Rev Med Suisse ; 6(263): 1760-2, 1764, 2010 Sep 22.
Artículo en Francés | MEDLINE | ID: mdl-20963958

RESUMEN

The question of the place of psychotherapy in psychiatric public care is posed in this article. We will address this question first by presenting two clinical and research programmes which were implemented in a clinical psychiatric unit, section Karl Jaspers (Service of General Psychiatry) of the Department of Psychiatry CHUV, in Lausanne with the collaboration of the University Institute of Psychotherapy. The first one puts forward psychodynamic psychotherapy of depressed inpatients; the clinical programme and the research questions on efficacy of this treatment are discussed. The second focuses on the early treatment of patients with Borderline Personality Disorder, in particular in its research question on the effect of the motive-oriented therapeutic relationship in this process. We conclude by underlining the convergences of the two programmes.


Asunto(s)
Hospitales Psiquiátricos , Hospitales Públicos , Psicoterapia , Humanos , Servicios de Salud Mental , Suiza
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