Titia Hompes

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BACKGROUND Reduced reward learning might contribute to the onset and maintenance of major depressive disorder (MDD). In particular, the inability to utilize rewards to guide behavior is hypothesized to be associated with anhedonia, a core feature and potential trait marker of MDD. Few studies have investigated whether reduced reward learning normalizes with(More)
BACKGROUND The methylation status of the human glucocorticoid receptor gene NR3C1 in newborns has been reported to be sensitive to prenatal maternal mood. This study investigates both the association between maternal cortisol and emotional state during pregnancy and the methylation state of the promoter region of NR3C1 gene. METHODS We examined 83(More)
Involvement of the type 1 cannabinoid receptor (CB1R) in the effects of alcohol on the brain is supported by animal experiments, but how in vivo CB1R levels are altered in alcoholic patients is still unclear. To assess the short-time effects of a binge drinking episode on CB1R availability, 20 healthy social drinkers underwent [(18)F]MK-9470-positron(More)
Epigenetic regulation of imprinted genes during embryonic development is influenced by the prenatal environment. Our aim was to examine the effect of maternal emotional stress and cortisol levels during pregnancy on methylation of imprinted genes, insulin-like growth factor 2 (IGF2) and guanine nucleotide-binding protein, alpha stimulating extra-large(More)
Stress Test (TSST) was administered to induce an endocrine stress response. Both tests were administered at study inclusion, after 8 weeks, and 1-year follow up. Relations between stress hormone responses and reward learningwere separately probed inMDDand control subjects. Further, we evaluated whether HPA axis dysregulation predicted reward responsiveness(More)
OBJECTIVES Chronic fatigue syndrome (CFS) has been associated with hypothalamic-pituitary-adrenal axis hypofunction and enhanced glucocorticoid receptor (GR) sensitivity. In addition, childhood trauma is considered a major risk factor for the syndrome. This study examines DNA methylation of the GR gene (NR3C1) in CFS and associations with childhood sexual(More)
BACKGROUND This exploratory study investigates the influence of maternal cortisol and emotional state during pregnancy on fetal intrauterine growth (IUG). We expected higher basal cortisol levels, or more depressive and anxious complaints during pregnancy, to be associated with slower IUG and lower birth weight. METHODS A total of 91 pregnant women were(More)
BACKGROUND Major depressive disorder (MDD) is a heterogeneous disease. More homogeneous psycho(patho)logical dimensions would facilitate MDD research as well as clinical practice. The first aim of this study was to find potential dimensions within a broad psychopathological assessment in depressed patients. Second, we aimed at examining how these dimensions(More)
In a sample of adults diagnosed with major depressive disorder (N = 77), we examined the relationship between overgeneral autobiographical memory and childhood physical and sexual abuse. We hypothesised that childhood abuse would be related to retrieving fewer specific autobiographical memories, even after statistically covarying psychopathology-related(More)
There is increasing evidence for the role of prenatal stress in shaping offspring DNA methylation and disease susceptibility. In the current study, we aimed to identify genes and pathways associated with pregnancy anxiety using a genome-wide DNA methylation approach. We selected 22 versus 23 newborns from our Prenatal Early Life Stress (PELS) cohort,(More)