6 results on '"Booij, Linda"'
Search Results
2. Looking beyond the DNA sequence: the relevance of DNA methylation processes for the stress -- diathesis model of depression.
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Booij, Linda, Dongsha Wang, Lévesque, Mélissa L., Tremblay, Richard E., and Szyf, Moshe
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DNA methylation , *MENTAL depression , *SEROTONIN , *HYPOTHALAMIC-pituitary-adrenal axis , *AFFECTIVE disorders , *SEROTONINERGIC mechanisms , *GENOMES , *SEROTONIN transporters , *PSYCHOLOGY - Abstract
The functioning of the hypothalamic-pituitary-adrenal (HPA) axis and serotonergic (5-HT) system are known to be intertwined with mood. Alterations in these systems are often associated with depression. However, neither are sufficient to cause depression in and of themselves. It is now becoming increasingly clear that the environment plays a crucial role, particularly, the perinatal environment. In this review, we posit that early environmental stress triggers a series of epigenetic mechanisms that adapt the genome and programme the HPA axis and 5-HT system for survival in a harsh environment. We focus on DNA methylation as it is the most stable epigenetic mark. Given that DNA methylation patterns are in large part set within the perinatal period, long-term gene expression programming by DNA methylation is especially vulnerable to environmental insults during this period. We discuss specific examples of genes in the 5-HT system (serotonin transporter) and HPA axis (glucocorticoid receptor and arginine vasopressin enhancer) whose DNA methylation state is associated with early life experience and may potentially lead to depression vulnerability. We conclude with a discussion on the relevance of studying epigenetic mechanisms in peripheral tissue as a proxy for those occurring in the human brain and suggest avenues for future research. [ABSTRACT FROM AUTHOR]
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- 2013
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3. The neuroscience of sadness: A multidisciplinary synthesis and collaborative review.
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Arias, Juan A., Williams, Claire, Raghvani, Rashmi, Aghajani, Moji, Baez, Sandra, Belzung, Catherine, Booij, Linda, Busatto, Geraldo, Chiarella, Julian, Fu, Cynthia HY, Ibanez, Agustin, Liddell, Belinda J., Lowe, Leroy, Penninx, Brenda W.J.H., Rosa, Pedro, and Kemp, Andrew H.
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SADNESS , *WALKING speed , *PREFRONTAL cortex , *RESPONSE inhibition , *NEUROSCIENCES , *AFFECTIVE disorders - Abstract
• Sadness involves reduction of cortical control over evolutionarily ancient brain systems. • Basic emotion theorists have identified a SADNESS circuit, based on animal research. • Psychological constructionists have identified patterns of activity that dependent on context. • Competing models may relate to different levels on a phylogenetic hierarchy. • Dedicated funding to facilitate collaborative and transdisciplinary opportunities is needed. Sadness is typically characterized by raised inner eyebrows, lowered corners of the mouth, reduced walking speed, and slumped posture. Ancient subcortical circuitry provides a neuroanatomical foundation, extending from dorsal periaqueductal grey to subgenual anterior cingulate, the latter of which is now a treatment target in disorders of sadness. Electrophysiological studies further emphasize a role for reduced left relative to right frontal asymmetry in sadness, underpinning interest in the transcranial stimulation of left dorsolateral prefrontal cortex as an antidepressant target. Neuroimaging studies – including meta-analyses – indicate that sadness is associated with reduced cortical activation, which may contribute to reduced parasympathetic inhibitory control over medullary cardioacceleratory circuits. Reduced cardiac control may – in part – contribute to epidemiological reports of reduced life expectancy in affective disorders, effects equivalent to heavy smoking. We suggest that the field may be moving toward a theoretical consensus, in which different models relating to basic emotion theory and psychological constructionism may be considered as complementary, working at different levels of the phylogenetic hierarchy. [ABSTRACT FROM AUTHOR]
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- 2020
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4. TPH2 polymorphisms across the spectrum of psychiatric morbidity: A systematic review and meta-analysis.
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Ottenhof, Koen Willem, Sild, Mari, Lévesque, Mélissa Luce, Ruhé, Henricus Gerardus, and Booij, Linda
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TRYPTOPHAN hydroxylase , *SEROTONIN , *PATHOLOGICAL psychology , *AFFECTIVE disorders , *META-analysis , *SYSTEMATIC reviews - Abstract
Tryptophan hydroxylase 2 (TPH2) is the rate-limiting enzyme in brain serotonin synthesis. The TPH2 gene has frequently been investigated in relation to psychiatric morbidity. The aim of the present review is to integrate results from association studies between TPH2 single nucleotide polymorphisms (SNPs) and various psychiatric disorders, which we furthermore quantified with meta-analysis. We reviewed 166 studies investigating 69 TPH2 SNPs in a broad range of psychiatric disorders, including over 30,000 patients. According to our meta-analysis, TPH2 polymorphisms show strongest associations with mood disorders, suicide (attempt) and schizophrenia. Despite small effect sizes, we conclude that TPH2 SNPs in the coding and non-coding areas (rs4570625, rs11178997, rs11178998, rs10748185, rs1843809, rs4290270, rs17110747) are each associated with one or more psychopathological conditions. Our findings highlight the possible common serotonergic mechanisms of the investigated psychiatric disorders. Yet, the functional relevance of most TPH2 polymorphisms is unclear. Characterizing how exactly the different TPH2 variants influence the serotonergic neurotransmission is a next necessary step in understanding the psychiatric disorders where serotonin is implicated. [ABSTRACT FROM AUTHOR]
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- 2018
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5. Altered patterns of brain activity during transient sadness in children at familial risk for major depression
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Lévesque, Mélissa L., Beauregard, Mario, Ottenhof, Koen W., Fortier, Émilie, Tremblay, Richard E., Brendgen, Mara, Pérusse, Daniel, Dionne, Ginette, Robaey, Philippe, Vitaro, Frank, Boivin, Michel, and Booij, Linda
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SADNESS in children , *MENTAL depression , *MAGNETIC resonance imaging of the brain , *AFFECTIVE disorders , *SYMPTOMS , *LONGITUDINAL method - Abstract
Abstract: Introduction: We used functional magnetic resonance imaging (fMRI) to investigate the neural correlates of sadness, the prevailing mood in major depression (MD), in a prospective, well-documented community sample followed since birth. Methods: The children, comprising 136 children (65 boys and 71 girls) of mothers with varying levels of depressive symptomatology, were scanned – using a 1.5-Tesla system – while they watched 5 blocks of both sad and neutral film excerpts. Following scanning, they rated the emotions they experienced, and if they identified sadness, they were also asked to rate its intensity. Results: In children whose mothers exhibited higher depressive symptomatology, compared to children whose mothers displayed lower depressive symptomatology, altered neural responses to sad film excerpts were noted in brain regions known to be involved in sadness and MD, notably the insula, anterior cingulate cortex and caudate nucleus, even though the children did not differ in current mood. Limitations: Whether this represents genetic vulnerability or a consequence of exposure to maternal depressive symptoms at a young age is unknown. Discussion: The results are consistent with the results of studies in healthy adults and MD patients. The present study suggests that an altered pattern of regional brain responses to sad stimuli, is already present in childhood and might represent vulnerability for MD later in life. [Copyright &y& Elsevier]
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- 2011
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6. Fonctionnement émotionnel et social des adolescents dépressifs, de leur fratrie et d’un groupe témoin : étude transversale
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Bossé-Chartier, Gabrielle, Booij, Linda, Herba, Catherine, and Garel, Patricia
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Reconnaissance d'expression faciale ,Adolescent ,Depression ,Siblings ,Dépression ,Fratrie ,Cognition sociale ,MASC ,Facial recognition ,Social cognition ,Maladie affective ,Affective disorders ,Adolescence - Abstract
Contexte : la présence d’un biais cognitif négatif chez les individus qui souffrent de dépression majeure (DM) et ceux qui y sont à haut risque (e.g. enfants de mères qui souffrent de DM) est maintenant établie. Aucune étude portant sur la vulnérabilité cognitive (VC) des membres de la fratrie n’est rapportée. Objectifs : la présente étude a pour but de vérifier si la fratrie des adolescents qui souffrent de DM présentent une VC qui les prédisposent à la DM. Méthode : cette étude porte sur 49 adolescents (18 participants traités pour une DM, 16 membres de la fratrie et 15 participants témoin), âgés entre 12 et 20 ans. La VC de chaque participant est quantifiée via un questionnaire qui mesure la réactivité cognitive (RC), soit le LEIDS-R, et une tâche de reconnaissance des expressions faciale (REF). La cognition sociale des participants est mesurée par le MASC, un outil qui évalue la cognition sociale par médium vidéo et que notre équipe a traduit de l’allemand au français. Résultats : les résultats préliminaires de la présente étude indiquent qu’une différence de réactivité cognitive est présente entre les adolescents traités pour une DM et les participants du groupe témoin (p < 0,001). L’analyse préliminaire tend à indiquer qu’une différence est présente entre la fratrie et le groupe contrôle. Conclusion : plusieurs de nos résultats tendent en faveur de la présence d’une VC prédisposant à la DM chez la fratrie des adolescents souffrant de DM. Ces résultats préliminaires doivent être confirmés par des études longitudinales., Background: a negative cognitive bias is present among individuals who suffers from major depression. This bias is also reported among individuals at high risk of major depression (e.g. child of depressed mother). No study to date aimed to evaluate cognitive vulnerability of siblings of depressed individuals. Objectives: the present study aim to verify if siblings of depressed adolescents present a cognitive vulnerability that would predispose them to develop a major depression. Method: This study evaluates 49 adolescents (18 participants treated for depression, 16 siblings and 15 controls), aged between 12 and 20 years old. The cognitive vulnerability of every participant has been assessed using an auto-report questionnaire of symptoms (LEIDS-R) that evaluates cognitive reactivity and a task of facial recognition. Social cognition of participants is measured using the Movie for Assessment of Social Cognition (MASC) that we translated from german to french. Results: the preliminary analyses of this study concludes that a significant difference of cognitive reactivity is present between adolescents treated for depression and controls (p < 0.001). Conclusion: some of our results tend to confirm the presence of a cognitive vulnerability to depression among siblings of depressed adolescents. Those results are still preliminary and need to be confirmed by longitudinal studies., Réalisé sous la co-direction de Linda Booij, Catherine Herba et Patricia Garel
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- 2014
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