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Söder E, Clamor A, Kempkensteffen J, Moritz S, Lincoln TM. Stress levels in psychosis: Do body and mind diverge? Biol Psychol 2018; 138:156-164. [DOI: 10.1016/j.biopsycho.2018.08.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 12/15/2022]
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Vaessen T, Kasanova Z, Hernaus D, Lataster J, Collip D, van Nierop M, Myin-Germeys I. Overall cortisol, diurnal slope, and stress reactivity in psychosis: An experience sampling approach. Psychoneuroendocrinology 2018; 96:61-68. [PMID: 29906787 DOI: 10.1016/j.psyneuen.2018.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Results from experimental studies suggest that psychosis and psychosis liability are associated with increased cortisol levels and blunted cortisol reactivity, and that use of antipsychotics may reduce these aberrations. Here, we report on overall cortisol, diurnal slope, and cortisol stress reactivity in everyday life in psychosis and psychosis liability using the experience sampling method (ESM). METHODS Our sample consisted of individuals diagnosed with psychotic disorder currently on (MPD; n = 53) or off antipsychotic medication (NMPD; n = 20), first-degree relatives of psychotic patients (REL; n = 47), and healthy volunteers (HV; n = 67). Saliva samples were collected throughout the day on six consecutive days and analyzed for cortisol levels. Simultaneously, stressfulness of the current activity was assessed with ESM questionnaires. RESULTS We found no group differences in overall cortisol level between groups, but REL had a steeper diurnal slope than HV; in MPD a trend was found in the same direction. Regarding reactivity to stressful activities, results indicated attenuation of the cortisol response in both patient groups compared to HV. CONCLUSION These results do not confirm reports of increased cortisol levels in psychosis, but provide evidence of stress-related cortisol alterations in everyday life.
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Affiliation(s)
- Thomas Vaessen
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium; Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.
| | - Zuzana Kasanova
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium
| | - Dennis Hernaus
- Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Johan Lataster
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands; Faculty of Psychology and Educational Sciences, Open University, Heerlen, The Netherlands
| | - Dina Collip
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Martine van Nierop
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium
| | - Inez Myin-Germeys
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium
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Emotion regulation as a predictor of the endocrine, autonomic, affective, and symptomatic stress response and recovery. Psychoneuroendocrinology 2018; 94:112-120. [PMID: 29775874 DOI: 10.1016/j.psyneuen.2018.04.028] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 03/15/2018] [Accepted: 04/25/2018] [Indexed: 01/16/2023]
Abstract
Stress is associated with the development of mental disorders such as depression and psychosis. The ability to regulate emotions is likely to influence how individuals respond to and recover from acute stress, and may thus be relevant to symptom development. To test this, we investigated whether self-reported emotion regulation predicts the endocrine, autonomic, affective, and symptomatic response to and recovery from a stressor. Social-evaluative stress was induced by the Trier Social Stress Test (TSST) in N = 67 healthy individuals (53.7% female, Mage = 29.9). Self-reported habitual emotion regulation skills were assessed at baseline. We measured salivary cortisol, heart rate, negative affect, state depression and state paranoia at three time points: pre-TSST, post-TSST, and after a 10 min recovery phase. Repeated-measures ANOVA showed all indicators to significantly increase in response to the stressor (p < .001) and decrease during the recovery phase (p < .001), except for salivary cortisol, which showed a linear increase (p < .001). The habitual use of maladaptive emotion regulation (e.g., rumination, catastrophizing) significantly predicted an increased affective and reduced cortisol response. Adaptive emotion regulation (e.g., acceptance, reappraisal) was not predictive of the stress response for any of the indicators. Neither type of emotion regulation predicted response during the stress recovery phase. Individuals who habitually resort to maladaptive emotion regulation strategies show a stronger affective and a blunted endocrine stress response, which may make them vulnerable to mental health problems. However, further research is needed to identify the full scope of skills required for effective stress-regulation before this knowledge can be used to develop effective prevention programs.
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54
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Clinical correlates of hypothalamic-pituitary-adrenal axis measures in individuals at risk for psychosis and with first-episode psychosis. Psychiatry Res 2018; 265:284-291. [PMID: 29775885 DOI: 10.1016/j.psychres.2018.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/21/2018] [Accepted: 05/05/2018] [Indexed: 01/05/2023]
Abstract
Hypothalamic-pituitary-adrenal (HPA) axis alterations in at-risk mental states (ARMS) resemble those observed in established psychosis but are less consistent. We aimed to explore HPA axis abnormalities in both first-episode psychosis (FEP) and ARMS patients, while controlling for psychopathological symptoms. We studied 21 ARMS, 34 FEP patients and 34 healthy subjects. Clinical assessment included psychopathological symptoms (positive, negative, disorganized, excited and depressive symptoms) and stress measures. Saliva cortisol levels were determined at awakening, 30' and 60' post-awakening, 10:00 h, 23:00 h and 10:00 h on the day after the administration of 0.25 mg of dexamethasone, which occurred at 23:00 h. Three HPA axis measures were calculated: cortisol awakening response (CAR), cortisol diurnal slope and cortisol suppression ratio of the dexamethasone suppression test (DST). There were no significant differences between groups in HPA axis measures. However, when exploring the relationship between HPA axis measures and psychopathological symptoms, in ARMS subjects (but not FEP patients), a flatter cortisol slope was associated with more prominent negative symptoms, whereas a blunted CAR was associated with excited symptoms. Although no significant differences in HPA axis measures were found between diagnostic groups, subtle abnormalities in the CAR or circadian cortisol rhythmicity might be important for the phenotype of ARMS individuals.
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55
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In the eye of the beholder: Perceptions of neighborhood adversity and psychotic experiences in adolescence. Dev Psychopathol 2018; 29:1823-1837. [PMID: 29162184 DOI: 10.1017/s0954579417001420] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Adolescent psychotic experiences increase risk for schizophrenia and other severe psychopathology in adulthood. Converging evidence implicates urban and adverse neighborhood conditions in the etiology of adolescent psychotic experiences, but the role of young people's personal perceptions of disorder (i.e., physical and social signs of threat) in their neighborhood is unknown. This was examined using data from the Environmental Risk Longitudinal Twin Study, a nationally representative birth cohort of 2,232 British twins. Participants were interviewed at age 18 about psychotic phenomena and perceptions of disorder in the neighborhood. Multilevel, longitudinal, and genetically sensitive analyses investigated the association between perceptions of neighborhood disorder and adolescent psychotic experiences. Adolescents who perceived higher levels of neighborhood disorder were significantly more likely to have psychotic experiences, even after accounting for objectively/independently measured levels of crime and disorder, neighborhood- and family-level socioeconomic status, family psychiatric history, adolescent substance and mood problems, and childhood psychotic symptoms: odds ratio = 1.62, 95% confidence interval [1.27, 2.05], p < .001. The phenotypic overlap between adolescent psychotic experiences and perceptions of neighborhood disorder was explained by overlapping common environmental influences, rC = .88, 95% confidence interval [0.26, 1.00]. Findings suggest that early psychological interventions to prevent adolescent psychotic experiences should explore the role of young people's (potentially modifiable) perceptions of threatening neighborhood conditions.
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Myin-Germeys I, Kasanova Z, Vaessen T, Vachon H, Kirtley O, Viechtbauer W, Reininghaus U. Experience sampling methodology in mental health research: new insights and technical developments. World Psychiatry 2018; 17:123-132. [PMID: 29856567 PMCID: PMC5980621 DOI: 10.1002/wps.20513] [Citation(s) in RCA: 274] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In the mental health field, there is a growing awareness that the study of psychiatric symptoms in the context of everyday life, using experience sampling methodology (ESM), may provide a powerful and necessary addition to more conventional research approaches. ESM, a structured self-report diary technique, allows the investigation of experiences within, and in interaction with, the real-world context. This paper provides an overview of how zooming in on the micro-level of experience and behaviour using ESM adds new insights and additional perspectives to standard approaches. More specifically, it discusses how ESM: a) contributes to a deeper understanding of psychopathological phenomena, b) allows to capture variability over time, c) aids in identifying internal and situational determinants of variability in symptomatology, and d) enables a thorough investigation of the interaction between the person and his/her environment and of real-life social interactions. Next to improving assessment of psychopathology and its underlying mechanisms, ESM contributes to advancing and changing clinical practice by allowing a more fine-grained evaluation of treatment effects as well as by providing the opportunity for extending treatment beyond the clinical setting into real life with the development of ecological momentary interventions. Furthermore, this paper provides an overview of the technical details of setting up an ESM study in terms of design, questionnaire development and statistical approaches. Overall, although a number of considerations and challenges remain, ESM offers one of the best opportunities for personalized medicine in psychiatry, from both a research and a clinical perspective.
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Affiliation(s)
- Inez Myin-Germeys
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Zuzana Kasanova
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Thomas Vaessen
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Hugo Vachon
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Olivia Kirtley
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Wolfgang Viechtbauer
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium
- School for Mental Health & Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Ulrich Reininghaus
- School for Mental Health & Neuroscience, Maastricht University, Maastricht, The Netherlands
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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Klippel A, Viechtbauer W, Reininghaus U, Wigman J, van Borkulo C, Myin-Germeys I, Wichers M. The Cascade of Stress: A Network Approach to Explore Differential Dynamics in Populations Varying in Risk for Psychosis. Schizophr Bull 2018; 44:328-337. [PMID: 28338969 PMCID: PMC5815145 DOI: 10.1093/schbul/sbx037] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Stress plays a central role in the development and persistence of psychosis. Network analysis may help to reveal mechanisms at the level of the micro-dynamic effects between stress, other daily experiences and symptomatology. This is the first study to examine time-lagged networks of the relations between minor daily stress, momentary affect/thoughts, psychotic experiences, and other potentially relevant daily life contexts in individuals varying in risk for psychosis. Intensive longitudinal data were obtained through 6 studies. The combined sample consisted of 654 individuals varying in risk for psychosis: healthy control subjects (n = 244), first-degree relatives of psychotic patients (n = 165), and psychotic patients (n = 245). Using multilevel models combined with permutation testing, group-specific time-lagged network connections between daily experiences were compared between groups. Specifically, the role of stress was examined. Risk for psychosis was related to a higher number of significant network connections. In all populations, stress had a central position in the network and showed direct and significant connections with subsequent psychotic experiences. Furthermore, the higher the risk for psychosis, the more variables "loss of control" and "suspicious" were susceptible to influences by other network nodes. These findings support the idea that minor daily stress may play an important role in inducing a cascade of effects that may lead to psychotic experiences.
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Affiliation(s)
- Annelie Klippel
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
- Department of Neurosciences, Center for Contextual Psychiatry (CCP), KU Leuven, Leuven, Belgium
| | - Wolfgang Viechtbauer
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Ulrich Reininghaus
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Johanna Wigman
- University of Groningen, University Medical Center Groningen (UMCG), University Center Psychiatry (UCP), Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Groningen, The Netherlands
| | - Claudia van Borkulo
- University of Groningen, University Medical Center Groningen (UMCG), University Center Psychiatry (UCP), Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Groningen, The Netherlands
- Department of Psychology, Psychological Methods, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Inez Myin-Germeys
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
- Department of Neurosciences, Center for Contextual Psychiatry (CCP), KU Leuven, Leuven, Belgium
| | - Marieke Wichers
- University of Groningen, University Medical Center Groningen (UMCG), University Center Psychiatry (UCP), Interdisciplinary Center Psychopathology and Emotion Regulation (ICPE), Groningen, The Netherlands
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58
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Udachina A, Bentall RP, Varese F, Rowse G. Stress sensitivity in paranoia: poor-me paranoia protects against the unpleasant effects of social stress. Psychol Med 2017; 47:2834-2843. [PMID: 28578719 DOI: 10.1017/s0033291717001362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The attributional theory of paranoia suggests that paranoid beliefs may protect individuals from low self-esteem and distress (Bentall et al. 2001). The current study tested this theory by investigating a hypothesis that paranoid beliefs in combination with low perceived deservedness of persecution (poor-me beliefs) confer protection against the distress caused by social but not activity related stress. METHODS Paranoid symptoms, perceived deservedness of persecution, self-esteem, mood, and stress levels of individuals diagnosed with schizophrenia spectrum disorders (N = 91) and healthy controls (N = 52) were assessed in the context of daily life using the experience sampling method. RESULTS Individuals holding poor-me beliefs (poor-me individuals) showed blunted sensitivity to social but not activity stress. In contrast, individuals holding paranoid beliefs in combination with high perceived deservedness of persecution (bad-me individuals) showed heightened sensitivity to social stress. No consistent differences in reactions to activity stress emerged. Although both poor-me and bad-me individuals reported low self-esteem, this disturbance was particularly characteristic of bad-me individuals. CONCLUSIONS The results suggest that poor-me paranoid beliefs may protect individuals against the distress associated with unpleasant social situations. The specificity of reactions to social stress is discussed in the context of wider literature. Future directions for research are suggested.
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Affiliation(s)
- A Udachina
- Greater Manchester Mental Health NHS Foundation Trust,UK
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59
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Mareckova K, Holsen L, Admon R, Whitfield-Gabrieli S, Seidman LJ, Buka SL, Klibanski A, Goldstein J. Neural - hormonal responses to negative affective stimuli: Impact of dysphoric mood and sex. J Affect Disord 2017; 222:88-97. [PMID: 28688266 PMCID: PMC5560420 DOI: 10.1016/j.jad.2017.06.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/07/2017] [Accepted: 06/22/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND Maladaptive responses to negative affective stimuli are pervasive, including clinically ill and healthy people, and men and women respond differently at neural and hormonal levels. Inspired by the Research Domain Criteria initiative, we used a transdiagnostic approach to investigate the impact of sex and dysphoric mood on neural-hormonal responses to negative affective stimuli. METHODS Participants included 99 individuals with major depressive disorder, psychosis and healthy controls. Functional magnetic resonance imaging (fMRI) was complemented with real-time acquisition of hypothalamo-pituitary-adrenal (HPA) and -gonadal (HPG) hormones. fMRI data were analyzed in SPM8 and task-related connectivity was assessed using generalized psychophysiological interaction. RESULTS Across all participants, elevated cortisol response predicted lower brain activity in orbitofrontal cortex and hypothalamus-amygdala connectivity. In those with worse dysphoric mood, elevated cortisol response predicted lower activity in hypothalamus and hippocampus. In women, elevated cortisol response was associated with lower activity in medial prefrontal cortex and low hypothalamo-hippocampal connectivity. In women with high dysphoric mood, elevated cortisol response was associated with low hypothalamo-hippocampal connectivity. There were no interactions with diagnosis or medication. LIMITATIONS There was limited power to correct for multiple comparisons across total number of ROIs and connectivity targets; cortisol responses were relatively low. CONCLUSIONS We conclude that the pathophysiology in neural-hormonal responses to negative affective stimuli is shared across healthy and clinical populations and varies as a function of sex and dysphoric mood. Our findings may contribute to the development of hormonal adjunctive therapeutics that are sex-dependent, underscoring the importance of one's sex to precision medicine.
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Affiliation(s)
- K. Mareckova
- Connors Center for Women’s Health and Gender Biology, Department of Medicine, Brigham and Women’s Hospital; Department of Psychiatry, Harvard Medical School (HMS), Boston, MA, USA,CEITEC, Masaryk University, Brno, Czech Republic
| | - L. Holsen
- Connors Center for Women’s Health and Gender Biology, Department of Medicine, Brigham and Women’s Hospital; Department of Psychiatry, Harvard Medical School (HMS), Boston, MA, USA
| | - R. Admon
- McLean Hospital, Department of Psychiatry, HMS, Boston, MA USA
| | - S. Whitfield-Gabrieli
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA
| | - LJ Seidman
- Beth Israel Deaconess Medical Center, Division of Public Psychiatry, Massachusetts Mental Health Center; Department of Psychiatry, HMS, Boston, MA, USA
| | - SL Buka
- Department of Community Health, Brown University, Providence, RI, USA
| | - A. Klibanski
- Massachusetts General Hospital, Department of Medicine, Neuroendocrine Unit; HMS, Department of Medicine, Boston, MA, USA
| | - J.M. Goldstein
- Connors Center for Women’s Health and Gender Biology, Department of Medicine, Brigham and Women’s Hospital; Department of Psychiatry, Harvard Medical School (HMS), Boston, MA, USA,Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA
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60
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Westermann S, Grezellschak S, Oravecz Z, Moritz S, Lüdtke T, Jansen A. Untangling the complex relationships between symptoms of schizophrenia and emotion dynamics in daily life: Findings from an experience sampling pilot study. Psychiatry Res 2017; 257:514-518. [PMID: 28843871 DOI: 10.1016/j.psychres.2017.08.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 07/11/2017] [Accepted: 08/12/2017] [Indexed: 12/19/2022]
Abstract
The unfolding of emotions over time (i.e., emotion dynamics) has been characterized by baseline, intraindividual variability and regulatory tendency (return time to baseline after deflection). Mounting evidence suggests that compared to healthy individuals, individuals with schizophrenia are characterized by a more negatively valenced baseline and a higher intraindividual variability. However, the regulatory tendency has not been investigated in schizophrenia so far. We hypothesize that the severity of positive symptoms is linked to increased emotional variability and that the severity of negative symptoms is associated with an increased regulatory tendency. Fifteen individuals diagnosed with schizophrenia took part in this pilot experience sampling study and reported their emotional state ten times a day. The dynamics of valence and arousal and their relationship with symptomatology were estimated with the DynAffect model. Regulatory tendency in valence and arousal was positively associated with negative symptom severity and negatively associated with positive symptom severity. However, the severity of positive symptoms was not credibly associated with the variability of valence. The study only partly corroborates findings on increased stress reactivity in schizophrenia, which might be due to the small sample size. However, results suggest that negative symptoms could stem from over-regulated emotion dynamics, which may impede goal-directed behavior.
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Affiliation(s)
- Stefan Westermann
- University of Bern, Institute of Psychology, Fabrikstrasse 8, 3012 Bern, Switzerland.
| | - Sarah Grezellschak
- Laboratory of Multimodal Neuroimaging and Core-Unit Brainimaging, Faculty of Medicine, Philipps-University Marburg, Marburg, Germany
| | - Zita Oravecz
- Human Development and Family Studies, The Pennsylvania State University, State College, PA, United States
| | - Steffen Moritz
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thies Lüdtke
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Jansen
- Laboratory of Multimodal Neuroimaging and Core-Unit Brainimaging, Faculty of Medicine, Philipps-University Marburg, Marburg, Germany; Core-Unit Brainimaging, Faculty of Medicine, Philipps-University Marburg, Marburg, Germany
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61
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Is sensitivity to daily stress predictive of onset or persistence of psychopathology? Eur Psychiatry 2017; 45:167-173. [PMID: 28957783 DOI: 10.1016/j.eurpsy.2017.07.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/03/2017] [Accepted: 07/08/2017] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The aim of the current study was to replicate findings in adults indicating that higher sensitivity to stressful events is predictive of both onset and persistence of psychopathological symptoms in a sample of adolescents and young adults. In addition, we tested the hypothesis that sensitivity to mild stressors in particular is predictive of the developmental course of psychopathology. METHODS We analyzed experience sampling and questionnaire data collected at baseline and one-year follow-up of 445 adolescent and young adult twins and non-twin siblings (age range: 15-34). Linear multilevel regression was used for the replication analyses. To test if affective sensitivity to mild stressors in particular was associated with follow-up symptoms, we used a categorical approach adding variables on affective sensitivity to mild, moderate and severe daily stressors to the model. RESULTS Linear analyses showed that emotional stress reactivity was not associated with onset (β=.02; P=.56) or persistence (β=-.01; P=.78) of symptoms. There was a significant effect of baseline symptom score (β=.53; P<.001) and average negative affect (NA: β=.19; P<.001) on follow-up symptoms. Using the categorical approach, we found that affective sensitivity to mild (β=.25; P<.001), but not moderate (β=-.03; P=.65) or severe (β=-.06; P=.42), stressors was associated with symptom persistence one year later. DISCUSSION We were unable to replicate previous findings relating stress sensitivity linearly to symptom onset or persistence in a younger sample. Whereas sensitivity to more severe stressors may reflect adaptive coping, high sensitivity to the mildest of daily stressors may indicate an increased risk for psychopathology.
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Menne-Lothmann C, Decoster J, van Winkel R, Collip D, Rutten BPF, Delespaul P, De Hert M, Derom C, Thiery E, Jacobs N, van Os J, Wichers M. Psychological and Biological Validation of a Novel Digital Social Peer Evaluation Experiment (digi-SPEE). Noro Psikiyatr Ars 2017; 54:3-10. [PMID: 28566951 DOI: 10.5152/npa.2017.19318] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/07/2016] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Negative social evaluation is associated with psychopathology. Given the frequency of evaluation through increasingly prevalent virtual social networks, increased understanding of the effects of this social evaluation is urgently required. METHODS A new digital social peer evaluation experiment (digi-SPEE) was developed to mimic everyday online social interactions between peers. Participants received mildly negative feedback on their appearance, intelligence, and congeniality. Two hundred and forty-one young people [58.9% female, aged 18.9 years (15 to 34)] from an ongoing novel general population twin study participated in this study. Positive affect (PA), negative affect (NA), implicit self-esteem, and cortisol were assessed before and after exposure to the social evaluation experiment. RESULTS The social evaluation experiment decreased PA (B=-5.25, p<.001) and implicit self-esteem (B=-.19; p<.001), whereas it increased NA (B=5.99; p<.001) and cortisol levels (B=.07; p<.001). Females (PA: B=-7.62; p<.001; NA: B=8.28; p<.001) and participants with higher levels of general psychological distress (PA: B=-.04, p=.035; NA: B=.06; p=.028) showed stronger affective responses. Stressor-induced cortisol increase was stronger in adolescents under the age of 18 than in participants 18 years and older (B=-.06, p=.002). CONCLUSION The digi-SPEE represents a social evaluation stressor that elicits biological and implicit and explicit mental changes that are relevant to mechanisms of psychopathology.
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Affiliation(s)
- Claudia Menne-Lothmann
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jeroen Decoster
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands.,University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Ruud van Winkel
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands.,University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Dina Collip
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Bart P F Rutten
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Philippe Delespaul
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Marc De Hert
- University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Catherine Derom
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium.,Department of Human Genetics, KU Leuven, Belgium
| | - Evert Thiery
- Department of Neurology, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Nele Jacobs
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands.,Faculty of Psychology, Open University of the Netherlands, Heerlen, The Netherlands
| | - Jim van Os
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands.,Department of Psychosis Studies, Institute of Psychiatry, King's College London, King's Health Partners, London, United Kingdom
| | - Marieke Wichers
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands.,Department of Psychiatry, University Medical Centre of Groningen, Groningen University, Groningen, The Netherlands
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Altered circadian patterns of salivary cortisol in individuals with schizophrenia: A critical literature review. ACTA ACUST UNITED AC 2017; 110:439-447. [PMID: 28506881 DOI: 10.1016/j.jphysparis.2017.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/10/2017] [Indexed: 12/25/2022]
Abstract
This article focuses on stress vulnerability in schizophrenia through an integrated clinical and biological approach. The objective of this article is to better understand the relationships between vulnerability, stress and schizophrenia. First, the concept of vulnerability is defined and several models of vulnerability in schizophrenia are reviewed. Second, a section is developed on the biology of stress, and more specifically on the stress responses of the hypothalamo-pitutary adrenal (HPA) axis. Then, studies of cortisol circadian rhythms are summarized, suggesting hyper-reactivity of the HPA axis in patients with schizophrenia and high risk individuals for schizophrenia. The results support the models of stress vulnerability in schizophrenia and the hypothesis of high cortisol levels as an endophenotype in this disorder. In conclusion, this article highlights the interest of studying the cortisol circadian rhythms in schizophrenia and opens the perspective to identify high risk individuals for schizophrenia by measuring circadian patterns of salivary cortisol.
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Krkovic K, Moritz S, Lincoln TM. Neurocognitive deficits or stress overload: Why do individuals with schizophrenia show poor performance in neurocognitive tests? Schizophr Res 2017; 183:151-156. [PMID: 27838097 DOI: 10.1016/j.schres.2016.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 10/14/2016] [Accepted: 11/02/2016] [Indexed: 11/17/2022]
Abstract
Poor performance in neurocognitive tasks is consistently found across studies in all stages of schizophrenia spectrum disorders and is interpreted as an underlying, brain function-related, neurocognitive deficit. However, neurocognitive test performance in schizophrenia might be compromised by patients' increased stress level. We investigated group-differences in neurocognitive performance while accounting for psychophysiological (salivary cortisol, heart rate, skin conductance level) and self-reported stress. We included 35 patients with schizophrenia, 29 participants with attenuated psychotic symptoms, 26 first-degree relatives of individuals with schizophrenia and 28 healthy controls. Participants completed a neurocognitive test battery that assessed processing speed, task switching, attention, working memory, verbal episodic memory, and verbal comprehension. Multivariate analyses of covariance (MANCOVA) were calculated to test for main effects of group on neurocognitive performance thereby not accounting versus accounting for confounding effects of stress. As expected, patients with schizophrenia scored lower than the other groups in all neurocognitive domains. Participants with attenuated psychotic symptoms, first-degree relatives and healthy individuals did not differ from each other in their performance. After accounting for heart rate and self-reported stress, the multivariate effect of group on neurocognition remained significant, but was rendered non-significant for specific domains - working memory capacity, episodic memory, and long-term memory. The findings imply that stress is relevant to neurocognitive performance and this should be taken into account when interpreting the origin of performance deficits in schizophrenia patients.
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Affiliation(s)
- Katarina Krkovic
- Department of Clinical Psychology and Psychotherapy, University of Hamburg, Germany.
| | - Steffen Moritz
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Germany
| | - Tania M Lincoln
- Department of Clinical Psychology and Psychotherapy, University of Hamburg, Germany
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Klippel A, Myin-Germeys I, Chavez-Baldini U, Preacher KJ, Kempton M, Valmaggia L, Calem M, So S, Beards S, Hubbard K, Gayer-Anderson C, Onyejiaka A, Wichers M, McGuire P, Murray R, Garety P, van Os J, Wykes T, Morgan C, Reininghaus U. Modeling the Interplay Between Psychological Processes and Adverse, Stressful Contexts and Experiences in Pathways to Psychosis: An Experience Sampling Study. Schizophr Bull 2017; 43:302-315. [PMID: 28204708 PMCID: PMC5605264 DOI: 10.1093/schbul/sbw185] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Several integrated models of psychosis have implicated adverse, stressful contexts and experiences, and affective and cognitive processes in the onset of psychosis. In these models, the effects of stress are posited to contribute to the development of psychotic experiences via pathways through affective disturbance, cognitive biases, and anomalous experiences. However, attempts to systematically test comprehensive models of these pathways remain sparse. Using the Experience Sampling Method in 51 individuals with first-episode psychosis (FEP), 46 individuals with an at-risk mental state (ARMS) for psychosis, and 53 controls, we investigated how stress, enhanced threat anticipation, and experiences of aberrant salience combine to increase the intensity of psychotic experiences. We fitted multilevel moderated mediation models to investigate indirect effects across these groups. We found that the effects of stress on psychotic experiences were mediated via pathways through affective disturbance in all 3 groups. The effect of stress on psychotic experiences was mediated by threat anticipation in FEP individuals and controls but not in ARMS individuals. There was only weak evidence of mediation via aberrant salience. However, aberrant salience retained a substantial direct effect on psychotic experiences, independently of stress, in all 3 groups. Our findings provide novel insights on the role of affective disturbance and threat anticipation in pathways through which stress impacts on the formation of psychotic experiences across different stages of early psychosis in daily life.
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Affiliation(s)
- Annelie Klippel
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Inez Myin-Germeys
- Department of Neurosciences, Psychiatry Research Group, Center for Contextual Psychiatry, KU Leuven, Belgium
| | - UnYoung Chavez-Baldini
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | | | - Matthew Kempton
- Psychosis Studies Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
| | - Lucia Valmaggia
- Psychology Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Maria Calem
- Psychosis Studies Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
| | - Suzanne So
- Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
| | - Stephanie Beards
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Kathryn Hubbard
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Charlotte Gayer-Anderson
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Adanna Onyejiaka
- Psychology Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
| | - Marieke Wichers
- University of Groningen, University Medical Centre Groningen (UMCG), University Center Psychiatry (UCP), Interdisciplinary Center Psychopathology and Emotion regulation (ICPE), Groningen, The Netherlands
| | - Philip McGuire
- Psychosis Studies Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Robin Murray
- Psychosis Studies Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Philippa Garety
- Psychology Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Jim van Os
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
- Psychosis Studies Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
| | - Til Wykes
- Psychology Department, Institute of Psychiatry, Psychology & Neuroscience, King's College, London, UK
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Craig Morgan
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Ulrich Reininghaus
- Department of Psychiatry and Psychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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Pruessner M, Cullen AE, Aas M, Walker EF. The neural diathesis-stress model of schizophrenia revisited: An update on recent findings considering illness stage and neurobiological and methodological complexities. Neurosci Biobehav Rev 2017; 73:191-218. [DOI: 10.1016/j.neubiorev.2016.12.013] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 12/09/2016] [Accepted: 12/12/2016] [Indexed: 01/29/2023]
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Childhood trauma and HPA axis functionality in offspring of bipolar parents. Psychoneuroendocrinology 2016; 74:316-323. [PMID: 27710902 DOI: 10.1016/j.psyneuen.2016.09.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/25/2016] [Accepted: 09/23/2016] [Indexed: 11/20/2022]
Abstract
Children of a parent with bipolar disorder (bipolar offspring) have an increased risk for mood disorders. While genetic factors play a significant role in this population, susceptibility to environmental stress may also significantly contribute to this vulnerability for mood disorders. Childhood trauma has consistently been found to increase the risk for mood disorders, with persisting consequences for hypothalamic-pituitary-adrenal (HPA) axis functionality. However, it is currently unknown whether childhood trauma specifically affects HPA axis activity in individuals with a familial risk for bipolar disorder. Therefore, we investigated the effects of childhood trauma on daytime and evening cortisol levels and dexamethasone suppression in bipolar offspring (N=70) and healthy controls (N=44). In our study we found no significant differences in daytime and evening cortisol levels as well as dexamethasone suppression between bipolar offspring and healthy controls (all p-values>0.43). In contrast, childhood trauma differentially affected daytime cortisol levels in the bipolar offspring compared to healthy controls (childhood trauma X bipolar offspring interaction, β=-7.310, p=0.0414) with an effect of childhood trauma on daytime cortisol in bipolar offspring at trend level (p=0.058). In the bipolar offspring group, lifetime or current psychiatric diagnoses, and stressful life events separately did not affect cortisol levels or dexamethasone suppression (all p-values>p=0.50). These findings were independent of current or lifetime psychiatric diagnosis. In conclusion, trauma-related changes in daytime HPA axis activity appear to be a specific trait in bipolar offspring who have increased risk for mood disorders compared to healthy individuals.
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Butjosa A, Gómez-Benito J, Huerta-Ramos E, Del Cacho N, Barajas A, Baños I, Usall J, Dolz M, Sánchez B, Carlson J, Maria Haro J, Ochoa S. Incidence of stressful life events and influence of sociodemographic and clinical variables on the onset of first-episode psychosis. Psychiatry Res 2016; 245:108-115. [PMID: 27541345 DOI: 10.1016/j.psychres.2016.08.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 08/04/2016] [Accepted: 08/08/2016] [Indexed: 01/01/2023]
Abstract
This study presents a quantitative analysis of the incidence of stressful life events (SLEs) and the variables gender, age at onset, family history and psychotic symptoms in patients with first-episode psychosis (FEP). A descriptive, cross-sectional methodology was used to interview 68 patients with FEP between 13 and 47 years of age. The Psychiatric Epidemiology Research Interview Life Events Scale collected one-year period prior to onset of FEP - used to analyse the subcategories academic, work, love and marriage, children, residence, legal affairs, finances and social activities-, Positive and Negative Syndrome Scale, and Clinical Global Impression-Schizophrenia scale were used to assess the relevance of certain SLEs during adolescence. Age at onset showed a significant negative correlation with the categories academic and social activities. By contrast, it showed a positive correlation with work and children. A significant relationship was found between paternal family history and social activities and between maternal family history and academic and love and marriage. Finally, an inverse relationship was observed between negative symptoms and the categories children and finance. Depressive symptoms were significantly correlated with the category academic. Our results show the importance of SLEs during adolescence and suggest that there is a clear need to develop preventive actions that promote effective strategies for dealing with the accumulation of psychosocial stress.
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Affiliation(s)
- Anna Butjosa
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain; Department of Personality, Evaluation and Psychological Treatment, Faculty of Psychology, University of Barcelona, Spain.
| | - Juana Gómez-Benito
- Department of Personality, Evaluation and Psychological Treatment, Faculty of Psychology, University of Barcelona, Spain; Institute for Brain, Cognition, and Behaviour (IR3C), University of Barcelona, Spain
| | - Elena Huerta-Ramos
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Núria Del Cacho
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Ana Barajas
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain; Hospital Sant Joan de Déu, Acute Unit, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain; Centro de Higiene Mental de Les Corts Research Unit, Barcelona, Spain
| | - Iris Baños
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Judith Usall
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Montserrat Dolz
- Hospital Sant Joan de Déu, Acute Unit, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Bernardo Sánchez
- Hospital Sant Joan de Déu, Acute Unit, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Janina Carlson
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain; Sant Joan de Déu Research Foundation, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain; Hospital Sant Joan de Déu, Acute Unit, CIBERSAM, Esplugues de Llobregat, Barcelona, Spain
| | - Josep Maria Haro
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | | | - Susana Ochoa
- Parc Sanitari Sant Joan de Déu, Teaching, Research & Innovation Unit, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
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The Very Low-Dose Dexamethasone Suppression Test in the General Population: A Cross-Sectional Study. PLoS One 2016; 11:e0164348. [PMID: 27736954 PMCID: PMC5063373 DOI: 10.1371/journal.pone.0164348] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 09/24/2016] [Indexed: 11/19/2022] Open
Abstract
Determinants of the hypothalamic-pituitary-adrenal (HPA) axis functioning are increasingly explored in population-based studies. However, functional tests measuring the negative feedback of the HPA axis cannot easily be implemented into large observational studies. Furthermore, high doses of dexamethasone often completely suppress the HPA axis in healthy persons. This study aimed to detect the effects of the health, lifestyle and sociodemographic factors, psychiatric problems and cognitive functions on the negative feedback of the HPA axis using a very low-dose (0.25 mg) dexamethasone suppression test (DST).We evaluated the associations of several determinants with the saliva cortisol concentrations after dexamethasone intake in a confounder-adjusted model also corrected for baseline saliva cortisol concentrations in the Rotterdam Study, a large population-based study (N = 1822). We found that female sex, low income, lack of exercise, instrumental disability and smoking were all independently associated with stronger suppression of the HPA axis. Even though there were no linear associations between psychiatric measures and cortisol suppression, we found that depressive symptoms and anxiety disorders were more common in persons with non-suppression of cortisol. Conversely, psychotropic medication use was related to enhanced suppression of cortisol after DST. In this large study, we found that female gender, low socioeconomic status and poor health were all related to suppression of the HPA axis. Non-linear associations were detected between the suppression of the HPA axis and common psychiatric disorders in community-dwelling persons.
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Carol EE, Spencer RL, Mittal VA. Sex differences in morning cortisol in youth at ultra-high-risk for psychosis. Psychoneuroendocrinology 2016; 72:87-93. [PMID: 27388688 PMCID: PMC4996727 DOI: 10.1016/j.psyneuen.2016.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 06/14/2016] [Accepted: 06/20/2016] [Indexed: 12/23/2022]
Abstract
Research suggests abnormalities in hypothalamic-pituitary-adrenal (HPA) axis function play an important role in the pathophysiology of psychosis. However, there is limited research on the biological stress system in young people at ultra high risk (UHR) for psychosis. Morning cortisol levels are particularly relevant to study in this context, as these markers reflect HPA regulation. This is the first examination of sex differences in morning cortisol levels in UHR individuals. Twenty-eight UHR and 22 matched healthy control participants were assessed in respect to symptoms and had home-based collection of salivary cortisol over three time points in the morning. It was predicted that the UHR participants would exhibit lower morning cortisol levels and lower cortisol would be associated with greater symptomatology (i.e. higher positive, negative, and depressive symptoms). Additionally, sex differences in morning cortisol levels were explored based on recent evidence suggesting that sex differences may play an important role in the exacerbation of psychosis. While there were no group differences in morning salivary cortisol secretion, there was a sex by time interaction among UHR individuals, such that only UHR males exhibited flat cortisol levels across two hours after awakening, whereas UHR females had a pattern of cortisol secretion similar to healthy controls, even among medication-free individuals (F=6.34, p=0.004). Cortisol AUC (area under the curve) across the three time points had a trend association (medium effect size; r=0.34, p=0.08) with depressive, but not positive or negative, symptom severity. These results stress the importance of considering sex differences in the psychosis-risk period, as they improve understanding of pathogenic processes.
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Affiliation(s)
- Emily E Carol
- University of Colorado Boulder, Department of Psychology and Neuroscience, Boulder, CO, 80309, United States; University of Colorado Boulder, Center for Neuroscience, Boulder, CO, 80309, United States.
| | - Robert L Spencer
- University of Colorado Boulder, Department of Psychology and Neuroscience, Boulder, CO, 80309, United States; University of Colorado Boulder, Center for Neuroscience, Boulder, CO, 80309, United States
| | - Vijay A Mittal
- Northwestern University, Department for Psychology, Evanston, Illinois, 60208, United States; Northwestern University, Department for Psychiatry, Chicago, Illinois, 60611, United States
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Chaumette B, Kebir O, Mam Lam Fook C, Bourgin J, Godsil B, Gaillard R, Jay T, Krebs MO. Stress et transition psychotique : revue de la littérature. Encephale 2016; 42:367-73. [DOI: 10.1016/j.encep.2015.10.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/13/2015] [Accepted: 10/26/2015] [Indexed: 12/19/2022]
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Streit F, Memic A, Hasandedić L, Rietschel L, Frank J, Lang M, Witt SH, Forstner AJ, Degenhardt F, Wüst S, Nöthen MM, Kirschbaum C, Strohmaier J, Oruc L, Rietschel M. Perceived stress and hair cortisol: Differences in bipolar disorder and schizophrenia. Psychoneuroendocrinology 2016; 69:26-34. [PMID: 27017430 DOI: 10.1016/j.psyneuen.2016.03.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 03/16/2016] [Accepted: 03/16/2016] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Bipolar disorder (BD) and schizophrenia (SCZ) are psychiatric disorders with shared and distinct clinical and genetic features. In both disorders, stress increases the risk for onset or relapse and dysregulation of the hypothalamus-pituitary-adrenal (HPA) axis has been reported. The latter is frequently investigated by measuring changes in the hormonal end product of the HPA axis, i.e., the glucocorticoid cortisol, whose concentration exhibits diurnal variation. The analysis of hair cortisol concentration (HCC) is a new method, which allows assessment of cumulative cortisol secretion over the preceding three months. AIMS To explore whether perceived stress and HCC: (i) differ between BD patients, SCZ patients, and controls; (ii) change over disease course; and iii) are associated with an increased genetic risk for BD or SCZ. METHODS 159 SCZ patients, 61 BD patients and 82 controls were included. Assessment included psychopathology, perceived stress, and HCC. Inpatients with an acute episode (38 BD and 77 SCZ) were assessed shortly after admission to hospital and at 3 and 6 months follow-up. Outpatients in remission and controls were assessed at one time point only. Polygenic risk scores for BD and SCZ were calculated based on results of the Psychiatric Genomic Consortium. RESULTS (i) Perceived stress was higher in BD and SCZ patients compared to controls (p<0.02), and was lower in outpatients in remission compared to inpatients on admission. HCC was higher in BD patients compared to SCZ patients and controls (p<0.02), and higher in inpatients on admission than in outpatients in remission (p=0.0012). In BD patients (r=0.29; p=0.033) and SCZ patients (r=0.20; p=0.024) manic symptoms were correlated with HCC. (ii) In both BD and SCZ inpatients, perceived stress decreased over the 6 month study period (p=0.048), while HCC did not change significantly over the 6 month study period. (iii) In controls, but not in the patient groups, the genetic risk score for BD was associated with HCC (r=0.28, p=0.023). CONCLUSIONS While our results are consistent with previous reports of increased perceived stress in BD and SCZ, they suggest differential involvement of the HPA axis in the two disorders. The genetic study supports this latter finding, and suggests that this effect is present below the threshold of manifest disorder.
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Affiliation(s)
- Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany.
| | - Amra Memic
- Psychiatric Clinic, Clinical Center University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Lejla Hasandedić
- Psychiatric Clinic, Clinical Center University of Sarajevo, Sarajevo, Bosnia and Herzegovina; Psychology Department, Faculty of Letters, Akdeniz University, Antalya, Turkey
| | - Liz Rietschel
- University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
| | - Josef Frank
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Maren Lang
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Andreas J Forstner
- Institute of Human Genetics, University of Bonn, Bonn, Germany; Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn, Bonn, Germany; Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Stefan Wüst
- Institute of Experimental Psychology, University of Regensburg, Regensburg, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany; Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Clemens Kirschbaum
- Department of Psychology, Technische Universität Dresden, Dresden, Germany
| | - Jana Strohmaier
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - Lilijana Oruc
- Psychiatric Clinic, Clinical Center University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
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Reininghaus U, Kempton MJ, Valmaggia L, Craig TKJ, Garety P, Onyejiaka A, Gayer-Anderson C, So SH, Hubbard K, Beards S, Dazzan P, Pariante C, Mondelli V, Fisher HL, Mills JG, Viechtbauer W, McGuire P, van Os J, Murray RM, Wykes T, Myin-Germeys I, Morgan C. Stress Sensitivity, Aberrant Salience, and Threat Anticipation in Early Psychosis: An Experience Sampling Study. Schizophr Bull 2016; 42:712-22. [PMID: 26834027 PMCID: PMC4838104 DOI: 10.1093/schbul/sbv190] [Citation(s) in RCA: 201] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
While contemporary models of psychosis have proposed a number of putative psychological mechanisms, how these impact on individuals to increase intensity of psychotic experiences in real life, outside the research laboratory, remains unclear. We aimed to investigate whether elevated stress sensitivity, experiences of aberrant novelty and salience, and enhanced anticipation of threat contribute to the development of psychotic experiences in daily life. We used the experience sampling method (ESM) to assess stress, negative affect, aberrant salience, threat anticipation, and psychotic experiences in 51 individuals with first-episode psychosis (FEP), 46 individuals with an at-risk mental state (ARMS) for psychosis, and 53 controls with no personal or family history of psychosis. Linear mixed models were used to account for the multilevel structure of ESM data. In all 3 groups, elevated stress sensitivity, aberrant salience, and enhanced threat anticipation were associated with an increased intensity of psychotic experiences. However, elevated sensitivity to minor stressful events (χ(2)= 6.3,P= 0.044), activities (χ(2)= 6.7,P= 0.036), and areas (χ(2)= 9.4,P= 0.009) and enhanced threat anticipation (χ(2)= 9.3,P= 0.009) were associated with more intense psychotic experiences in FEP individuals than controls. Sensitivity to outsider status (χ(2)= 5.7,P= 0.058) and aberrantly salient experiences (χ(2)= 12.3,P= 0.002) were more strongly associated with psychotic experiences in ARMS individuals than controls. Our findings suggest that stress sensitivity, aberrant salience, and threat anticipation are important psychological processes in the development of psychotic experiences in daily life in the early stages of the disorder.
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Affiliation(s)
- Ulrich Reininghaus
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands;
| | - Matthew J Kempton
- Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Lucia Valmaggia
- Psychology Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Tom K J Craig
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Philippa Garety
- Psychology Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Adanna Onyejiaka
- Psychology Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Charlotte Gayer-Anderson
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Suzanne H So
- Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
| | - Kathryn Hubbard
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Stephanie Beards
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Paola Dazzan
- Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Carmine Pariante
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Valeria Mondelli
- National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Helen L Fisher
- MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - John G Mills
- Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Wolfgang Viechtbauer
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Philip McGuire
- Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Jim van Os
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Robin M Murray
- Psychosis Studies Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Til Wykes
- Psychology Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Inez Myin-Germeys
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands; Center for Contextual Psychiatry, Department of Neuroscience, Catholic University of Leuven, Leuven, Belgium
| | - Craig Morgan
- Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; National Institute for Health Research (NIHR) Mental Health Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
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Girshkin L, O'Reilly N, Quidé Y, Teroganova N, Rowland JE, Schofield PR, Green MJ. Diurnal cortisol variation and cortisol response to an MRI stressor in schizophrenia and bipolar disorder. Psychoneuroendocrinology 2016; 67:61-9. [PMID: 26874562 DOI: 10.1016/j.psyneuen.2016.01.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/05/2016] [Accepted: 01/19/2016] [Indexed: 12/16/2022]
Abstract
Markers of HPA axis function, including diurnal cortisol rhythm and cortisol responses to stress or pharmacological manipulation, are increasingly reported as disrupted in schizophrenia (SZ) and bipolar disorder (BD). However, there has been no direct comparison of cortisol responses to stress in SZ and BD in the same study, and associations between cortisol dysfunction and illness characteristics remain unclear. In this study we used spline embedded linear mixed models to examine cortisol levels of SZ and BD participants at waking, during the first 45min after waking (representing the cortisol awakening response; CAR), during the period of rapid cortisol decline post the awakening response, and in reaction to a stressor (MRI scan), relative to healthy controls (HC). Contrary to expectations, neither SZ nor BD showed differences in waking cortisol levels, CAR, or immediate post-CAR decline compared to HC; however, waking cortisol levels were greater in BD relative to SZ. In response to the MRI stressor, the SZ group showed a significant absence of the expected increase in cortisol responsivity to stress, which was seen in both the BD and HC groups. Clinical factors affecting the CAR differed between SZ and BD. In SZ, higher antipsychotic medication dosage was associated with a steeper incline of the CAR, while greater positive symptom severity was associated with a more blunted CAR, and greater levels of anxiety were associated with the blunted cortisol response to stress. In BD, longer illness duration was associated with a steeper incline in CAR and lower levels of waking cortisol. These results suggest that cortisol responses may normalize with medication (in SZ) and longer illness duration (in BD), in line with findings of aberrant cortisol levels in the early stages of psychotic disorders.
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Affiliation(s)
- Leah Girshkin
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Schizophrenia Research Institute, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia
| | - Nicole O'Reilly
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Prince of Wales Hospital, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia
| | - Yann Quidé
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Schizophrenia Research Institute, Sydney, NSW, Australia
| | - Nina Teroganova
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Schizophrenia Research Institute, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia
| | - Jesseca E Rowland
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Prince of Wales Hospital, Sydney, NSW, Australia; Schizophrenia Research Institute, Sydney, NSW, Australia
| | - Peter R Schofield
- Schizophrenia Research Institute, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia; School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Melissa J Green
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Prince of Wales Hospital, Sydney, NSW, Australia; Schizophrenia Research Institute, Sydney, NSW, Australia; Neuroscience Research Australia, Sydney, NSW, Australia.
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75
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Moskow DM, Addington J, Bearden CE, Cadenhead KS, Cornblatt BA, Heinssen R, Mathalon DH, McGlashan TH, Perkins DO, Seidman LJ, Tsuang MT, Cannon TD, Woods SW, Walker EF. The relations of age and pubertal development with cortisol and daily stress in youth at clinical risk for psychosis. Schizophr Res 2016; 172:29-34. [PMID: 26905038 PMCID: PMC4821739 DOI: 10.1016/j.schres.2016.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/28/2016] [Accepted: 02/01/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Prodromal syndromes often begin in adolescence - a period of neurodevelopmental changes and heightened stress sensitivity. Research has shown elevated stress and cortisol in individuals at clinical high risk (CHR) for psychosis. This cross-sectional study examined relations of age and pubertal status with cortisol and self-reported stress in healthy controls (HCs) and CHR adolescents. It was hypothesized that the relations of age and pubertal stage with cortisol and stress would be more pronounced in CHR youth. METHODS Participants were 93 HCs and 348 CHR adolescents from the North American Prodrome Longitudinal Study (NAPLS). At baseline, measures of stress (Daily Stress Inventory - DSI), Tanner stage (TS), and salivary cortisol were obtained. RESULTS ANCOVA revealed increased DSI scores with age for both groups, and higher DSI scores in CHR adolescents than HCs, with a more pronounced difference for females. Contrary to prediction, with age controlled, HCs showed greater TS-related DSI increases. Analysis of cortisol showed no significant interactions, but a main effect of age and a trend toward higher cortisol in the CHR group. Correlations of cortisol with TS were higher in HC than CHR group. CONCLUSIONS Stress measures increased with age in HC and CHR adolescents, and DSI scores also increased with TS in HCs. The results do not support a more pronounced age or TS increase in stress measures in CHR adolescents, but instead suggest that stress indices tend to be elevated earlier in adolescence in the CHR group. Potential determinants of findings and future directions are discussed.
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Affiliation(s)
| | - Jean Addington
- University of Calgary, 3280 Hospital Drive NW, Calgary, AB T2N 4Z6, Canada.
| | - Carrie E. Bearden
- Univeristy of California, 300 Medical Plaza Suite 2265, Los
Angeles, CA 90095, USA,
| | | | | | - Robert Heinssen
- National Institute of Mental Health, 6001 Executive Boulevard, Bethesda, MD 20893, USA.
| | - Daniel H. Mathalon
- University of California San Francisco, 4150 Clement Street, San
Francisco, CA 94121, USA,
| | | | - Diana O. Perkins
- University of North Carolina, 101 Manning Dr, Chapel Hill, NC
27514, USA,
| | - Larry J. Seidman
- Beth Israel Deaconess Medical Center, Harvard Medical School, 75 Fenwood Road, Boston, MA 02115, USA,
| | - Ming T. Tsuang
- University of California San Diego, 9500 Gilman Drive, La Jolla,
CA 92037, USA,
| | | | - Scott W. Woods
- Yale University, 300 George Street, New Haven, CT 06511, USA,
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Kasanova Z, Hernaus D, Vaessen T, van Amelsvoort T, Winz O, Heinzel A, Pruessner J, Mottaghy FM, Collip D, Myin-Germeys I. Early-Life Stress Affects Stress-Related Prefrontal Dopamine Activity in Healthy Adults, but Not in Individuals with Psychotic Disorder. PLoS One 2016; 11:e0150746. [PMID: 27007554 PMCID: PMC4805207 DOI: 10.1371/journal.pone.0150746] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 02/18/2016] [Indexed: 12/20/2022] Open
Abstract
Early life stress may have a lasting impact on the developmental programming of the dopamine (DA) system implicated in psychosis. Early adversity could promote resilience by calibrating the prefrontal stress-regulatory dopaminergic neurotransmission to improve the individual's fit with the predicted stressful environment. Aberrant reactivity to such match between proximal and distal environments may, however, enhance psychosis disease risk. We explored the combined effects of childhood adversity and adult stress by exposing 12 unmedicated individuals with a diagnosis of non-affective psychotic disorder (NAPD) and 12 healthy controls (HC) to psychosocial stress during an [18F]fallypride positron emission tomography. Childhood trauma divided into early (ages 0-11 years) and late (12-18 years) was assessed retrospectively using a questionnaire. A significant group x childhood trauma interaction on the spatial extent of stress-related [18F]fallypride displacement was observed in the mPFC for early (b = -8.45, t(1,23) = -3.35, p = .004) and late childhood trauma (b = -7.86, t(1,23) = -2.48, p = .023). In healthy individuals, the spatial extent of mPFC DA activity under acute psychosocial stress was positively associated with the severity of early (b = 7.23, t(11) = 3.06, p = .016) as well as late childhood trauma (b = -7.86, t(1,23) = -2.48, p = .023). Additionally, a trend-level main effect of early childhood trauma on subjective stress response emerged within this group (b = -.7, t(11) = -2, p = .07), where higher early trauma correlated with lower subjective stress response to the task. In the NAPD group, childhood trauma was not associated with the spatial extent of the tracer displacement in mPFC (b = -1.22, t(11) = -0.67), nor was there a main effect of trauma on the subjective perception of stress within this group (b = .004, t(11) = .01, p = .99). These findings reveal a potential mechanism of neuroadaptation of prefrontal DA transmission to early life stress and suggest its role in resilience and vulnerability to psychosis.
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Affiliation(s)
- Zuzana Kasanova
- Department of Neuroscience, KU Leuven–University of Leuven, Leuven, Belgium
| | - Dennis Hernaus
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Thomas Vaessen
- Department of Neuroscience, KU Leuven–University of Leuven, Leuven, Belgium
| | - Thérèse van Amelsvoort
- Department of Neuroscience, KU Leuven–University of Leuven, Leuven, Belgium
- Department of Nuclear Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Oliver Winz
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Alexander Heinzel
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Jens Pruessner
- Department of Psychiatry, Douglas Mental Health Institute, McGill University, Montreal, Quebec, Canada
| | - Felix M. Mottaghy
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
- Department of Nuclear Medicine, Maastricht University Hospital, Maastricht, The Netherlands
| | - Dina Collip
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Inez Myin-Germeys
- Department of Neuroscience, KU Leuven–University of Leuven, Leuven, Belgium
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77
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Reininghaus U, Depp CA, Myin-Germeys I. Ecological Interventionist Causal Models in Psychosis: Targeting Psychological Mechanisms in Daily Life. Schizophr Bull 2016; 42:264-9. [PMID: 26707864 PMCID: PMC4753613 DOI: 10.1093/schbul/sbv193] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Integrated models of psychotic disorders have posited a number of putative psychological mechanisms that may contribute to the development of psychotic symptoms, but it is only recently that a modest amount of experience sampling research has provided evidence on their role in daily life, outside the research laboratory. A number of methodological challenges remain in evaluating specificity of potential causal links between a given psychological mechanism and psychosis outcomes in a systematic fashion, capitalizing on longitudinal data to investigate temporal ordering. In this article, we argue for testing ecological interventionist causal models that draw on real world and real-time delivered, ecological momentary interventions for generating evidence on several causal criteria (association, time order, and direction/sole plausibility) under real-world conditions, while maximizing generalizability to social contexts and experiences in heterogeneous populations. Specifically, this approach tests whether ecological momentary interventions can (1) modify a putative mechanism and (2) produce changes in the mechanism that lead to sustainable changes in intended psychosis outcomes in individuals' daily lives. Future research using this approach will provide translational evidence on the active ingredients of mobile health and in-person interventions that promote sustained effectiveness of ecological momentary interventions and, thereby, contribute to ongoing efforts that seek to enhance effectiveness of psychological interventions under real-world conditions.
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Affiliation(s)
- Ulrich Reininghaus
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands; Centre for Epidemiology and Public Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK;
| | - Colin A Depp
- Department of Psychiatry, University of California, San Diego, CA; VA San Diego Healthcare System, San Diego, CA
| | - Inez Myin-Germeys
- Center for Contextual Psychiatry, Department of Neuroscience, KU Leuven, Belgium
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78
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Lee KW, Chan KW, Chang WC, Lee EHM, Hui CLM, Chen EYH. A systematic review on definitions and assessments of psychotic-like experiences. Early Interv Psychiatry 2016; 10:3-16. [PMID: 25772746 DOI: 10.1111/eip.12228] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/19/2014] [Indexed: 01/26/2023]
Abstract
AIMS Psychotic-like experiences (PLEs) or subclinical psychotic experiences have received increased attention as some studies have suggested continuity between PLEs and psychotic disorders. However, epidemiological and correlational studies of PLEs showed mixed findings - it is observed that different studies use a wide variety of definitions of PLEs, as well as different assessment tools that are designed to capture such described experiences. The differences in definitions and assessment tools adopted could contribute to the discrepancy of findings. The current review aims to examine the definitions and assessment tools adopted in the studies of PLEs. METHODS Literature search was conducted between October 2013 and February 2014 using three search engines: Medline, Web of Science and PubMed. RESULTS A total of 76 papers met the selection criteria and were included in the current review. It is found that the majority of papers reviewed defined PLEs quantitatively using assessment tools and do not have a specific phenomenological definition, whereas assessment tools adopted have a wide variety. Furthermore, phenomenological studies of PLEs were rare. CONCLUSIONS The variations in definitions and assessment tools of PLEs might contribute to mixed findings in researches. Reaching to a consensus through the study of phenomenology of PLEs is essential to further advancement of the research in this area.
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Affiliation(s)
- Kit-Wai Lee
- Department of Psychiatry, The University of Hong Kong, Hong Kong
| | - Kit-Wa Chan
- Department of Psychiatry, The University of Hong Kong, Hong Kong
| | - Wing-Chung Chang
- Department of Psychiatry, The University of Hong Kong, Hong Kong
| | | | | | - Eric Yu-Hai Chen
- Department of Psychiatry, The University of Hong Kong, Hong Kong
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79
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Chaumette B, Kebir O, Mam-Lam-Fook C, Morvan Y, Bourgin J, Godsil BP, Plaze M, Gaillard R, Jay TM, Krebs MO. Salivary cortisol in early psychosis: New findings and meta-analysis. Psychoneuroendocrinology 2016; 63:262-70. [PMID: 26520686 DOI: 10.1016/j.psyneuen.2015.10.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/12/2015] [Accepted: 10/13/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Schizophrenia is a multifactorial disorder and environmental risk factors for it might contribute to hypothalamo-pituitary-adrenal axis (HPA) dysregulation. While increased cortisol levels have been reported in schizophrenia, as well as in early psychosis (compared to healthy controls), a crucial unresolved issue is whether elevated cortisol levels could be related to the distress of an emerging illness, rather than being specific to psychosis. Here, we report new findings from the first French cohort of young help-seekers (ICAAR) including ultra-high risk subjects (UHR), first-episode of psychosis (FEP) and non at-risk help seekers controls (HSC), followed by a meta-analysis of all available reports on salivary basal cortisol levels in early psychosis (UHR and FEP). METHODS In the ICAAR study, 169 individuals (15-30 years old) had their basal cortisol levels sampled and they were categorized (at baseline) as either UHR, FEP, or HSC using the criteria of the Comprehensive Assessment of At-Risk Mental States (CAARMS). The three groups were compared at baseline, and the UHR and HSC individuals were also included in a one-year longitudinal follow-up. UHRs who converted to psychosis at the follow up (UHR-P) were compared to non-converters (UHR-NP). We also performed a meta-analysis from case-control studies with basal salivary measures of cortisol, drawing from a systematic bibliographic search using the keywords 'cortisol', 'glucocorticoid', 'HPA' with 'UHR', 'CHR', 'at-risk mental state', 'schizotypal ', 'prodromal schizophrenia', 'first-episode psychosis', 'first episode schizophrenia', 'newly diagnosed schizophrenia', 'recent onset schizophrenia' [in Medline, Web of Knowledge (WOS), EBSCO], followed by a systematic screening of the resulting articles. RESULTS Basal cortisol levels were not significantly different between UHR, FEP, and HSC controls in the ICAAR cohort. Interestingly, initial cortisol levels were correlated with positive symptoms at the one year follow-up in the ICAAR cohort. The meta-analysis revealed a significant elevation of the salivary basal cortisol levels in UHR individuals compared to controls (8 studies--1060 individuals), but not between FEP and controls (6 studies--441 individuals). Indirect comparison of salivary basal cortisol levels between UHR and FEP did not yield significant differences. Finally, no differences were detected between the baseline cortisol of UHR-P and UHR-NP (4 studies--301 individuals). CONCLUSION The meta-analysis (including new data) indicates that basal cortisol levels were increased in UHR compared to controls, but FEP levels were not different from UHR or controls. Many confounding factors could decrease the effect size in FEP especially medication intake. Taken together with our new results (which made use of help-seeker controls, and not merely healthy controls), the findings indicate that basal cortisol levels may not be a reliable biomarker for early psychosis. Further studies are needed to clarify the precise role of the HPA axis in psychotic conversion.
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Affiliation(s)
- Boris Chaumette
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Oussama Kebir
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Célia Mam-Lam-Fook
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Yannick Morvan
- Université Paris Ouest Nanterre La Défense, EVACLIPSY-CLIPSYD EA443, 92000 Nanterre, France
| | - Julie Bourgin
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Bill P Godsil
- INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Marion Plaze
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Raphaël Gaillard
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Thérèse M Jay
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France
| | - Marie-Odile Krebs
- Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire-S14, Faculté de Médecine Paris Descartes, 75014 Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France; INSERM UMR 894, Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Institut de Psychiatrie-GDR 3557 de Psychiatrie, 75014 Paris, France.
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80
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Appiah-Kusi E, Leyden E, Parmar S, Mondelli V, McGuire P, Bhattacharyya S. Abnormalities in neuroendocrine stress response in psychosis: the role of endocannabinoids. Psychol Med 2016; 46:27-45. [PMID: 26370602 DOI: 10.1017/s0033291715001786] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aim of this article is to summarize current evidence regarding alterations in the neuroendocrine stress response system and endocannabinoid system and their relationship in psychotic disorders such as schizophrenia. Exposure to stress is linked to the development of a number of psychiatric disorders including psychosis. However, the precise role of stress in the development of psychosis and the possible mechanisms that might underlie this are not well understood. Recently the cannabinoid hypothesis of schizophrenia has emerged as a potential line of enquiry. Endocannabinoid levels are increased in patients with psychosis compared with healthy volunteers; furthermore, they increase in response to stress, which suggests another potential mechanism for how stress might be a causal factor in the development of psychosis. However, research regarding the links between stress and the endocannabinoid system is in its infancy. Evidence summarized here points to an alteration in the baseline tone and reactivity of the hypothalamic-pituitary-adrenal (HPA) axis as well as in various components of the endocannabinoid system in patients with psychosis. Moreover, the precise nature of the inter-relationship between these two systems is unclear in man, especially their biological relevance in the context of psychosis. Future studies need to simultaneously investigate HPA axis and endocannabinoid alterations both at baseline and following experimental perturbation in healthy individuals and those with psychosis to understand how they interact with each other in health and disease and obtain mechanistic insight as to their relevance to the pathophysiology of schizophrenia.
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Affiliation(s)
- E Appiah-Kusi
- Department of Psychosis Studies,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 63,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
| | - E Leyden
- Department of Psychosis Studies,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 63,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
| | - S Parmar
- Department of Psychosis Studies,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 63,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
| | - V Mondelli
- Department of Psychological Medicine,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 92,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
| | - P McGuire
- Department of Psychosis Studies,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 63,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
| | - S Bhattacharyya
- Department of Psychosis Studies,King's College London,Institute of Psychiatry,Psychology & Neuroscience (IoPPN),PO Box 63,De Crespigny Park,Denmark Hill,London SE5 8AF,UK
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81
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Hsieh CJ, Godwin D, Mamah D. Utility of Washington Early Recognition Center Self-Report Screening Questionnaires in the Assessment of Patients with Schizophrenia and Bipolar Disorder. Front Psychiatry 2016; 7:149. [PMID: 27616996 PMCID: PMC4999826 DOI: 10.3389/fpsyt.2016.00149] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 08/15/2016] [Indexed: 12/19/2022] Open
Abstract
Early identification and treatment are associated with improved outcomes in bipolar disorder (BPD) and schizophrenia (SCZ). Screening for the presence of these disorders usually involves time-intensive interviews that may not be practical in settings where mental health providers are limited. Thus, individuals at earlier stages of illness are often not identified. The Washington Early Recognition Center Affectivity and Psychosis (WERCAP) screen is a self-report questionnaire originally developed to identify clinical risk for developing bipolar or psychotic disorders. The goal of the current study was to investigate the utility of the WERCAP Screen and two complementary questionnaires, the WERC Stress Screen and the WERC Substance Screen, in identifying individuals with established SCZ or BPD. Participants consisted of 35 BPD and 34 SCZ patients, as well as 32 controls (CON), aged 18-30 years. Univariate analyses were used to test for score differences between groups. Logistic regression and receiver operating characteristic (ROC) curves were used to identify diagnostic predictors. Significant group differences were found for the psychosis section of the WERCAP (pWERCAP; p < 0.001), affective section of the WERCAP (aWERCAP; p = 0.001), and stress severity (p = 0.027). No significant group differences were found in the rates of substance use as measured by the WERC Substance Screen (p = 0.267). Only the aWERCAP and pWERCAP scores were useful predictors of diagnostic category. ROC curve analysis showed the optimal cut point on the aWERCAP to identify BPD among our participant groups was a score of >20 [area under the curve (AUC): 0.87; sensitivity: 0.91; specificity: 0.71], while that for the pWERCAP to identify SCZ was a score of >13 (AUC: 0.89; sensitivity: 0.88; specificity: 0.82). These results indicate that the WERCAP Screen may be useful in screening individuals for BPD and SCZ and that identifying stress and substance-use severity can be rapidly done using self-report questionnaires. Larger studies in undiagnosed individuals will be needed to test the WERCAP Screen's ability to identify mania or psychosis in the community.
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Affiliation(s)
- Christina J Hsieh
- Saint Louis University School of Medicine, St. Louis, MO, USA; Department of Psychiatry, Washington University Medical School, St. Louis, MO, USA
| | - Douglass Godwin
- Department of Psychiatry, Washington University Medical School , St. Louis, MO , USA
| | - Daniel Mamah
- Department of Psychiatry, Washington University Medical School , St. Louis, MO , USA
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82
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Cullen AE, Day FL, Roberts RE, Pariante CM, Laurens KR. Pituitary gland volume and psychosocial stress among children at elevated risk for schizophrenia. Psychol Med 2015; 45:3281-3292. [PMID: 26190643 DOI: 10.1017/s0033291715001282] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Pituitary volume enlargements have been observed among individuals with first-episode psychosis. These abnormalities are suggestive of hypothalamic-pituitary-adrenal (HPA) axis hyperactivity, which may contribute to the development of psychosis. However, the extent to which these abnormalities characterize individuals at elevated risk for schizophrenia prior to illness onset is currently unclear, as volume increases, decreases and no volume differences have all been reported relative to controls. The current study aimed to determine whether antipsychotic-naive, putatively at-risk children who present multiple antecedents of schizophrenia (ASz) or a family history of illness (FHx) show pituitary volume abnormalities relative to typically developing (TD) children. An additional aim was to explore the association between pituitary volume and experiences of psychosocial stress. METHOD ASz (n = 30), FHx (n = 22) and TD (n = 32) children were identified at age 9-12 years using a novel community-screening procedure or as relatives of individuals with schizophrenia. Measures of pituitary volume and psychosocial stress were obtained at age 11-14 years. RESULTS Neither ASz nor FHx children showed differences in pituitary volume relative to TD children. Among FHx children only, pituitary volume was negatively associated with current distress relating to negative life events and exposure to physical punishment. CONCLUSIONS The lack of pituitary volume abnormalities among ASz and FHx children is consistent with our previous work demonstrating that these children are not characterized by elevated diurnal cortisol levels. The findings imply that these biological markers of HPA axis hyperactivity, observed in some older samples of high-risk individuals, may emerge later, more proximally to disease onset.
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Affiliation(s)
- A E Cullen
- Department of Forensic and Neurodevelopmental Sciences,Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,UK
| | - F L Day
- Health Service and Population Research,Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,UK
| | - R E Roberts
- Department of Forensic and Neurodevelopmental Sciences,Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,UK
| | - C M Pariante
- Section of Stress,Psychiatry and Immunology and Perinatal Psychiatry,Department of Psychological Medicine,Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,UK
| | - K R Laurens
- Department of Forensic and Neurodevelopmental Sciences,Institute of Psychiatry,Psychology & Neuroscience,King's College London,London,UK
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83
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DeVylder JE, Hilimire MR. Suicide Risk, Stress Sensitivity, and Self-Esteem among Young Adults Reporting Auditory Hallucinations. HEALTH & SOCIAL WORK 2015; 40:175-181. [PMID: 26285356 DOI: 10.1093/hsw/hlv037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Individuals with subthreshold psychotic experiences are at increased risk for suicidal thoughts and behavior, similar to those with schizophrenia and other psychotic disorders. This may be explained by shared risk factors such as heightened stress sensitivity or low self-esteem. Understanding the nature of this relationship could inform suicide prevention in social work practice. In this study, authors examined the relationship between self-reported auditory hallucinations and suicidal thoughts, plans, and attempts, in a nonclinical sample of young adults, controlling for scores on the Psychological Stress Index and Rosenberg Self-Esteem Scale. Auditory hallucinations were associated with approximately double the odds of suicidal ideation and plans and four times the odds for suicide attempts. This relationship was not explained by stress sensitivity or self-esteem, which were independently related to hallucinations and suicidality, respectively. Subthreshold auditory hallucinations may be a useful indicator of suicide risk. This association may represent a clinically significant relationship that may be addressed through social work interventions intended to alleviate stress sensitivity or improve self-esteem.
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84
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Wigman JTW, van Os J, Borsboom D, Wardenaar KJ, Epskamp S, Klippel A, Viechtbauer W, Myin-Germeys I, Wichers M. Exploring the underlying structure of mental disorders: cross-diagnostic differences and similarities from a network perspective using both a top-down and a bottom-up approach. Psychol Med 2015; 45:2375-2387. [PMID: 25804221 DOI: 10.1017/s0033291715000331] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND It has been suggested that the structure of psychopathology is best described as a complex network of components that interact in dynamic ways. The goal of the present paper was to examine the concept of psychopathology from a network perspective, combining complementary top-down and bottom-up approaches using momentary assessment techniques. METHOD A pooled Experience Sampling Method (ESM) dataset of three groups (individuals with a diagnosis of depression, psychotic disorder or no diagnosis) was used (pooled N = 599). The top-down approach explored the network structure of mental states across different diagnostic categories. For this purpose, networks of five momentary mental states ('cheerful', 'content', 'down', 'insecure' and 'suspicious') were compared between the three groups. The complementary bottom-up approach used principal component analysis to explore whether empirically derived network structures yield meaningful higher order clusters. RESULTS Individuals with a clinical diagnosis had more strongly connected moment-to-moment network structures, especially the depressed group. This group also showed more interconnections specifically between positive and negative mental states than the psychotic group. In the bottom-up approach, all possible connections between mental states were clustered into seven main components that together captured the main characteristics of the network dynamics. CONCLUSIONS Our combination of (i) comparing network structure of mental states across three diagnostically different groups and (ii) searching for trans-diagnostic network components across all pooled individuals showed that these two approaches yield different, complementary perspectives in the field of psychopathology. The network paradigm therefore may be useful to map transdiagnostic processes.
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Affiliation(s)
- J T W Wigman
- Department of Psychiatry,University of Groningen, University Medical Center Groningen,Groningen,The Netherlands
| | - J van Os
- Department of Psychiatry and Psychology,School of Mental Health and Neuroscience, Maastricht University Medical Center,Maastricht,The Netherlands
| | - D Borsboom
- Department of Psychology,University of Amsterdam,Amsterdam,The Netherlands
| | - K J Wardenaar
- Department of Psychiatry,University of Groningen, University Medical Center Groningen,Groningen,The Netherlands
| | - S Epskamp
- Department of Psychology,University of Amsterdam,Amsterdam,The Netherlands
| | - A Klippel
- Department of Psychiatry and Psychology,School of Mental Health and Neuroscience, Maastricht University Medical Center,Maastricht,The Netherlands
| | - W Viechtbauer
- Department of Psychiatry and Psychology,School of Mental Health and Neuroscience, Maastricht University Medical Center,Maastricht,The Netherlands
| | - I Myin-Germeys
- Department of Psychiatry and Psychology,School of Mental Health and Neuroscience, Maastricht University Medical Center,Maastricht,The Netherlands
| | - M Wichers
- Department of Psychiatry,University of Groningen, University Medical Center Groningen,Groningen,The Netherlands
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85
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Carol EE, Mittal VA. Resting cortisol level, self-concept, and putative familial environment in adolescents at ultra high-risk for psychotic disorders. Psychoneuroendocrinology 2015; 57:26-36. [PMID: 25880698 PMCID: PMC4437835 DOI: 10.1016/j.psyneuen.2015.03.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/20/2015] [Accepted: 03/21/2015] [Indexed: 12/24/2022]
Abstract
A growing body of evidence suggests that resting cortisol levels are elevated in patients with schizophrenia and closely tied to symptom severity. However, there is limited research on the biological stress system during the ultra high-risk (UHR) period immediately preceding the onset of psychosis, and cortisol has not been examined in relation to individual characteristics such as self-concept or potential stressors such as putative familial environment in this critical population. In the present study, salivary cortisol samples were collected on 37 UHR and 42 matched control adolescents, and these individuals were assessed with clinical interviews as well as a measure of self-concept. For a subsection of the sample (23 UHR and 20 control adolescents), a participating relative/caretaker was also assessed with an expressed emotion interview designed to gauge psychosocial environment. Consistent with previous studies, UHR participants exhibited elevated resting cortisol levels when compared with controls. In addition, UHR adolescents exhibited increased negative self-concept and their relatives/caretakers endorsed significantly fewer initial positive statements about the participant. Interestingly, a strong trend in the UHR group suggests that higher cortisol levels are associated with higher rates of critical statements from relatives/caretakers. Furthermore, elevated cortisol levels in the participants were associated with increased negative self-concept as well as fewer initial positive comments from relatives/caretakers. Results suggest that hypothalamic-pituitary-adrenal axis (HPA) dysfunction is closely associated with both individual and environmental-level characteristics. Taken together, these findings support a neural diathesis-stress model of psychosis and future studies, designed to examine causal relationships, stand to inform both our understanding of pathogenic processes in the high-risk period as well as early intervention efforts.
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Affiliation(s)
- Emily E. Carol
- University of Colorado Boulder Department of Psychology and Neuroscience Boulder, Colorado, 80309 United States of America,Corresponding Author: Emily E. Carol University of Colorado at Boulder Department of Psychology and Neuroscience, Center for Neuroscience 345 UCB Boulder, CO 80309-0345 Phone: 303.492-4616
| | - Vijay A. Mittal
- Northwestern University, Department of Psychology, Evanston, IL, 60208, USA
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86
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Rodrigues S, Kaiseler M, Queirós C. Psychophysiological Assessment of Stress Under Ecological Settings. EUROPEAN PSYCHOLOGIST 2015. [DOI: 10.1027/1016-9040/a000222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Stress can negatively impact one’s health and well-being, however, despite the recent evolution in stress assessment research methodologies, there is still little agreement about stress conceptualization and assessment. In an attempt to summarize and reflect on this evolution, this paper aims to systematically review research evidence of ecological approaches on psychophysiological stress assessment. Thus, a literature search of electronic databases was conducted spanning 22 years (1990–2012) and 55 studies were reviewed. Studies were considered for inclusion if they contemplated both psychological and physiological measures of stress under ecological settings. This review focuses on five themes: methodology terminology, research population, study design, measurement, and technology. Findings support the need to use a common methodology terminology in order to increase scientific rigor. Additionally, there seems to be an increasing tendency for the use of these methods by multidisciplinary teams among both clinical and nonclinical populations aiming to understand the relationship between stress and disease. Most of the studies reviewed contemplated a time-based protocol and different conceptualizations of stress were found, resulting in the use of different subjective measures. Findings reinforce the importance of combining subjective and objective measures while also controlling for possible time- or situation-dependent confounders’. Advances in technology were evident and different assessment techniques were found. The benefits and challenges of ecological protocols to assess stress are discussed and recommendations for future research are provided, aiming to overcome previous limitations and advance scientific knowledge in the area.
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Affiliation(s)
- Susana Rodrigues
- Psychosocial Rehabilitation Laboratory, Faculty of Psychology and Educational Sciences, Porto University, Portugal
| | - Mariana Kaiseler
- Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, UK
| | - Cristina Queirós
- Psychosocial Rehabilitation Laboratory, Faculty of Psychology and Educational Sciences, Porto University, Portugal
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87
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Goldstein JM, Lancaster K, Longenecker JM, Abbs B, Holsen LM, Cherkerzian S, Whitfield-Gabrieli S, Makris N, Tsuang MT, Buka SL, Seidman LJ, Klibanski A. Sex differences, hormones, and fMRI stress response circuitry deficits in psychoses. Psychiatry Res 2015; 232:226-36. [PMID: 25914141 PMCID: PMC4439265 DOI: 10.1016/j.pscychresns.2015.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 02/05/2015] [Accepted: 03/23/2015] [Indexed: 11/20/2022]
Abstract
Response to stress is dysregulated in psychosis (PSY). fMRI studies showed hyperactivity in hypothalamus (HYPO), hippocampus (HIPP), amygdala (AMYG), anterior cingulate (ACC), orbital and medial prefrontal (OFC; mPFC) cortices, with some studies reporting sex differences. We predicted abnormal steroid hormone levels in PSY would be associated with sex differences in hyperactivity in HYPO, AMYG, and HIPP, and hypoactivity in PFC and ACC, with more severe deficits in men. We studied 32 PSY cases (50.0% women) and 39 controls (43.6% women) using a novel visual stress challenge while collecting blood. PSY males showed BOLD hyperactivity across all hypothesized regions, including HYPO and ACC by FWE-correction. Females showed hyperactivity in HIPP and AMYG and hypoactivity in OFC and mPFC, the latter FWE-corrected. Interaction of group by sex was significant in mPFC (F = 7.00, p = 0.01), with PSY females exhibiting the lowest activity. Male hyperactivity in HYPO and ACC was significantly associated with hypercortisolemia post-stress challenge, and mPFC with low androgens. Steroid hormones and neural activity were dissociated in PSY women. Findings suggest disruptions in neural circuitry-hormone associations in response to stress are sex-dependent in psychosis, particularly in prefrontal cortex.
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Affiliation(s)
- Jill M Goldstein
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA; Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA; Division of Psychiatric Neuroscience, Athinoula A. Martinos Center, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.
| | - Katie Lancaster
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA.
| | - Julia M Longenecker
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA.
| | - Brandon Abbs
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA.
| | - Laura M Holsen
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA; Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA; Division of Psychiatric Neuroscience, Athinoula A. Martinos Center, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.
| | - Sara Cherkerzian
- Connors Center for Women׳s Health and Gender Biology, Division of Women׳s Health, Brigham and Women׳s Hospital, Boston, MA, USA.
| | - Susan Whitfield-Gabrieli
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Nicolas Makris
- Departments of Psychiatry and Medicine, Harvard Medical School, Boston, MA, USA; Division of Psychiatric Neuroscience, Athinoula A. Martinos Center, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.
| | - Ming T Tsuang
- Center for Behavior Genomics, Department of Psychiatry, University of California at San Diego, San Diego, CA, USA.
| | - Stephen L Buka
- Department of Community Health, Brown University, Providence, RI, USA.
| | - Larry J Seidman
- Division of Psychiatric Neuroscience, Athinoula A. Martinos Center, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA; Beth Israel Deaconess Medical Center, Division of Public Psychiatry, Massachusetts Mental Health Center and Harvard Medical School, Boston, MA, USA.
| | - Anne Klibanski
- Department of Medicine, Harvard Medical School, Boston, MA, USA; Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA.
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88
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Lincoln TM, Köther U, Hartmann M, Kempkensteffen J, Moritz S. Responses to stress in patients with psychotic disorders compared to persons with varying levels of vulnerability to psychosis, persons with depression and healthy controls. J Behav Ther Exp Psychiatry 2015; 47:92-101. [PMID: 25506818 DOI: 10.1016/j.jbtep.2014.11.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 11/10/2014] [Accepted: 11/17/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVES An experimental design was used to test whether self-reported, psychophysiological and symptomatic stress-responses increase as a function of the underlying vulnerability to psychosis as proposed by vulnerability-stress-models. METHODS Stress-responses of participants with psychotic disorders (PSY, n = 35) were compared to those of participants with attenuated positive symptoms (AS, n = 29), first-degree relatives of persons with psychotic disorders (REL, n = 26), healthy controls (HC, n = 28) and controls with depression (DEP, n = 30). Using a repeated measures design, participants were assigned to a noise stressor, a social stressor and a no stress condition in random order. Stress-responses were assessed via self-report, salivary cortisol levels, heart rate and skin conductance levels. State-paranoia and depression were assessed with clinical scales. RESULTS PSY reported to be significantly more stressed than HC, AS and REL across all conditions which went along with increased heart rate and decreased overall cortisol release. In contrast, AS showed elevated levels of cortisol. PSY showed a stronger response of self-reported stress to the noise condition compared to the no stress condition than HC, but no stronger response than the other samples. Furthermore, the stressors did not trigger stronger psychophysiological responses or symptom-increases in PSY. LIMITATIONS The social stressor was brief and not individualized and did not have an effect on cortisol. CONCLUSIONS The findings support the notion that subjective stress-responsiveness increases with vulnerability, but not the assumption that symptoms arise directly as a function of stress and vulnerability. Also, the generally high levels of arousal seem to be more relevant to psychosis than the responsiveness to specific stressors.
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Affiliation(s)
- Tania M Lincoln
- Clinical Psychology and Psychotherapy, Department of Psychology, University of Hamburg, Germany.
| | - Ulf Köther
- University Medical Center Hamburg-Eppendorf, Department of Psychiatry and Psychotherapy, Germany
| | - Maike Hartmann
- Clinical Psychology and Psychotherapy, Department of Psychology, University of Hamburg, Germany
| | - Jürgen Kempkensteffen
- Clinical Psychology and Psychotherapy, Department of Psychology, University of Hamburg, Germany
| | - Steffen Moritz
- University Medical Center Hamburg-Eppendorf, Department of Psychiatry and Psychotherapy, Germany
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89
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Karanikas E, Garyfallos G. Role of cortisol in patients at risk for psychosis mental state and psychopathological correlates: A systematic review. Psychiatry Clin Neurosci 2015; 69:268-82. [PMID: 25430397 DOI: 10.1111/pcn.12259] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 11/15/2014] [Accepted: 11/25/2014] [Indexed: 12/25/2022]
Abstract
During recent decades, much evidence has been accumulated concerning the neuroendocrine basis of schizophrenia. Recently, research has focused on stress hormones, with cortisol being the most widely researched, during the prodromal phase of psychosis. Thus, the present study aims to systematically review the evidence concerning the role of cortisol in patients at risk for psychosis mental state and its associations with psychopathological correlates. We systematically reviewed the published reports referring to both 'at clinical risk for psychosis' and 'at genetic risk for psychosis' mental state. Sixteen studies were identified. A trend towards increased cortisol levels in saliva emerged. Findings concerning cortisol levels in the blood were minimal and less consistent. The longitudinal studies, though with divergent results, hinted towards upregulation of cortisol secretion prior to psychotic conversion. Regarding cortisol's reactivity, evaluated through neuroendocrine, psychosocial and naturalistic stressors, the findings were minimal and divergent. The hypothesized relation of psychotic symptomatology with cortisol in subjects at risk for psychosis was not confirmed by the majority of the studies. On the contrary, the anxiety parameter and stress-intolerance index were both positively associated with cortisol. In conclusion, the published reports related to the evaluation of cortisol levels/function at prodrome are hitherto minimal. Although the evidence favors cortisol's participation in the pathophysiology of psychosis, the exact cause-effect sequence and the intertwining of cortisol with psychopathology are still unclear.
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Affiliation(s)
- Evangelos Karanikas
- Psychiatric Department, 424 Military General Hospital of Thessaloniki, Thessaloniki, Greece; 2nd Psychiatric Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
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90
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No evidence for attenuated stress-induced extrastriatal dopamine signaling in psychotic disorder. Transl Psychiatry 2015; 5:e547. [PMID: 25871972 PMCID: PMC4462602 DOI: 10.1038/tp.2015.37] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 01/30/2015] [Accepted: 02/09/2015] [Indexed: 12/17/2022] Open
Abstract
Stress is an important risk factor in the etiology of psychotic disorder. Preclinical work has shown that stress primarily increases dopamine (DA) transmission in the frontal cortex. Given that DA-mediated hypofrontality is hypothesized to be a cardinal feature of psychotic disorder, stress-related extrastriatal DA release may be altered in psychotic disorder. Here we quantified for the first time stress-induced extrastriatal DA release and the spatial extent of extrastriatal DA release in individuals with non-affective psychotic disorder (NAPD). Twelve healthy volunteers (HV) and 12 matched drug-free NAPD patients underwent a single infusion [(18)F]fallypride positron emission tomography scan during which they completed the control and stress condition of the Montreal Imaging Stress Task. HV and NAPD did not differ in stress-induced [(18)F]fallypride displacement and the spatial extent of stress-induced [(18)F]fallypride displacement in medial prefrontal cortex (mPFC) and temporal cortex (TC). In the whole sample, the spatial extent of stress-induced radioligand displacement in right ventro-mPFC, but not dorso-mPFC or TC, was positively associated with task-induced subjective stress. Psychotic symptoms during the scan or negative, positive and general subscales of the Positive and Negative Syndrome Scale were not associated with stress-induced [(18)F]fallypride displacement nor the spatial extent of stress-induced [(18)F]fallypride displacement in NAPD. Our results do not offer evidence for altered stress-induced extrastriatal DA signaling in NAPD, nor altered functional relevance. The implications of these findings for the role of the DA system in NAPD and stress processing are discussed.
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91
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Much ado about much: stress, dynamic biomarkers and HPA axis dysregulation along the trajectory to psychosis. Schizophr Res 2015; 162:253-60. [PMID: 25620122 DOI: 10.1016/j.schres.2015.01.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 01/01/2015] [Accepted: 01/05/2015] [Indexed: 12/26/2022]
Abstract
OBJECTIVES In the context of a stress-vulnerability framework, hyperactivation of the hypothalamic-pituitary-adrenal (HPA) axis is thought contribute to the risk, onset and course of psychotic illness. However, recent reports regarding static and dynamic features of the HPA axis suggest a more complex set of phenomena at play in the early phases of psychosis. METHODS We review literature regarding structural and functional aspects of the HPA axis in subjects at risk for or experiencing the first episode of psychosis, including evidence favoring as well as that which contradicts a model of HPA axis hyperactivation. RESULTS Static measures of diurnal cortisol and hippocampal/pituitary volumes suggest that the HPA axis is in a hyperactivated state in early phases of psychosis. In contrast, the dynamic cortisol response to encountered or anticipated stress is blunted in the same populations. These incongruent findings need to be better understood. CONCLUSIONS We consider potential explanations for the seemingly contradictory elevation and blunting of HPA biomarkers in the early course of psychosis. Finally, we propose and explore implications of a conceptual model of tonic HPA hyperactivation and phasic HPA blunting that integrates and reconciles these data.
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92
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Labad J, Stojanovic-Pérez A, Montalvo I, Solé M, Cabezas Á, Ortega L, Moreno I, Vilella E, Martorell L, Reynolds RM, Gutiérrez-Zotes A. Stress biomarkers as predictors of transition to psychosis in at-risk mental states: roles for cortisol, prolactin and albumin. J Psychiatr Res 2015; 60:163-9. [PMID: 25466832 DOI: 10.1016/j.jpsychires.2014.10.011] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/29/2014] [Accepted: 10/31/2014] [Indexed: 01/08/2023]
Abstract
Stress and inflammation are thought to play a role in the risk of developing a psychotic disorder. We aimed to identify stress-related biomarkers for psychosis transition in help-seeking individuals with an at-risk mental state (ARMS). We studied 39 ARMS subjects who were attending an Early Intervention Service. We included a control group of 44 healthy subjects (HS) matched by sex and age. Stressful life events and perceived stress were assessed. Stress-related biomarkers were determined in serum (cortisol, prolactin, C-reactive protein and albumin), plasma (fibrinogen) or saliva (morning cortisol, cortisol awakening response). All ARMS were followed-up at our Unit for at least one year. We divided the ARMS group into two subgroups based on the development of a psychotic disorder (ARMS-P, N = 10) or not (ARMS-NP, N = 29). ARMS-P reported more stressful life events and perceived stress than HS and ARMS-NP groups. In relation to baseline stress biomarkers, ARMS-P subjects had increased prolactin and lower albumin levels in serum, when compared to ARMS-NP and HS groups. These results did not change when repeated in a subsample of antipsychotic-naïve ARMS subjects. We also found significant differences between groups in the cortisol secretion after awakening. In a multinomial logistic regression adjusting for age, sex and life stress, prolactin was a predictor of psychosis transition whereas albumin levels had a protective effect. Our study underscores the role of stress and stress-related biomarkers (cortisol awakening response, prolactin and albumin) in the pathogenesis of psychosis.
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Affiliation(s)
- Javier Labad
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain.
| | - Alexander Stojanovic-Pérez
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Itziar Montalvo
- Department of Psychiatry, Corporació Sanitària i Universitària Parc Taulí, Sabadell, Barcelona, Spain
| | - Montse Solé
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Ángel Cabezas
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Laura Ortega
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Irene Moreno
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Elisabet Vilella
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Lourdes Martorell
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
| | - Rebecca M Reynolds
- Endocrinology Unit, University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Alfonso Gutiérrez-Zotes
- Early Intervention Service and Research Department, Hospital Universitari Institut Pere Mata, IISPV, Universitat Rovira i Virgili, CIBERSAM, Reus, Spain
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93
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van Os J, Delespaul P, Barge D, Bakker RP. Testing an mHealth momentary assessment Routine Outcome Monitoring application: a focus on restoration of daily life positive mood states. PLoS One 2014; 9:e115254. [PMID: 25513813 PMCID: PMC4267819 DOI: 10.1371/journal.pone.0115254] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 11/18/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Routine Outcome Monitoring (ROM) is used as a means to enrich the process of treatment with feedback on patient outcomes, facilitating patient involvement and shared decision making. While traditional ROM measures focus on retrospective accounts of symptoms, novel mHealth technology makes it possible to collect real life, in-the-moment ambulatory data that allow for an ecologically valid assessment of personalized and contextualized emotional and behavioural adjustment in the flow daily life (mROM). METHOD In a sample of 34 patients with major depressive disorder, treated with antidepressants, the combined effect of treatment and natural course was examined over a period of 18 weeks with Ecological Momentary Assessment (EMA). EMA consisted of repeated, within-subject, mini-measurements of experience (eg positive affect, negative affect, medication side effects) and context (eg stressors, situations, activities) at 10 unselected semi-random moments per day, for a period of six days, repeated three times over the 18-week period (baseline, week 6 and week 18). RESULTS EMA measures of emotional and behavioural adjustment were sensitive to the effects of treatment and natural course over the 18-week period, particularly EMA measures focussing on positive mood states and the ability to use natural rewards (impact of positive events on positive mood states), with standardized effect sizes of 0.4-0.5. EMA measures of activities, social interaction, stress-sensitivity and negative mood states were also sensitive to change over time. CONCLUSION This study supports the use of mROM as a means to involve the patient in the process of needs assessment and treatment. EMA data are meaningful to the patient, as they reflect daily life circumstances. Assessment of treatment response with mROM data allows for an interpretation of the effect of treatment at the level of daily life emotional and social adjustment--as an index of health, obviating the need for an exclusive focus on traditional measures of 'sickness'.
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Affiliation(s)
- Jim van Os
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, South Limburg Mental Health and Teaching Network, Maastricht, The Netherlands
- King’s College London, King’s Health Partners, Department of Psychosis Studies, Institute of Psychiatry, London, United Kingdom
| | - Philippe Delespaul
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, South Limburg Mental Health and Teaching Network, Maastricht, The Netherlands
| | - Daniela Barge
- Leiden University Medical Centre, Leiden, The Netherlands
| | - Roberto P. Bakker
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, South Limburg Mental Health and Teaching Network, Maastricht, The Netherlands
- Psychiatric Centre GGZ Centraal, Amersfoort, The Netherlands
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94
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Pruessner M, Lepage M, Collins DL, Pruessner JC, Joober R, Malla AK. Reduced hippocampal volume and hypothalamus-pituitary-adrenal axis function in first episode psychosis: evidence for sex differences. NEUROIMAGE-CLINICAL 2014; 7:195-202. [PMID: 25610781 PMCID: PMC4300007 DOI: 10.1016/j.nicl.2014.12.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/31/2014] [Accepted: 12/01/2014] [Indexed: 01/01/2023]
Abstract
Background Hippocampal volume (HV) decline is an important marker of psychosis and has been associated with hypothalamus–pituitary–adrenal (HPA) axis dysregulation in various disorders. Given recent findings of sex differences in HPA axis function in psychosis, the current study investigated differences in HV in male and female first episode psychosis (FEP) patients and controls and the interaction of HV with the cortisol awakening response (CAR) and symptoms. Methods Fifty-eight patients with a diagnosis of FEP (39 men, 19 women) and 27 healthy community controls (15 men, 12 women) underwent structural magnetic resonance imaging (MRI) on a 1.5 T scanner. Hippocampal volume was determined using previously established segmentation protocols. Saliva samples for cortisol assessment were collected at 0, 30 and 60 min after awakening. Psychotic symptoms were assessed with the Scale for Assessment of Positive Symptoms (SAPS), the Scale for Assessment of Negative Symptoms (SANS) and the Global Assessment of Functioning (GAF) scale. Results Male patients had significantly smaller left and right HVs compared to male controls, which appeared to be secondary to global brain volume differences. However, even when controlling for overall brain size, male patients showed smaller HV compared to female patients. The CAR was significantly lower in male patients compared to male controls and female patients. Only in male patients, smaller left HV was significantly associated with a blunted CAR, and smaller HV bilaterally was related to positive psychotic symptoms and lower levels of functioning. Conclusions We propose that reduced hippocampal volume and an attenuated cortisol awakening response are related markers of increased stress vulnerability in male psychosis patients and that both contribute to the unfavorable clinical picture in men. We examined sex differences in neurobiological markers of stress in psychosis. Hippocampal volume and cortisol levels to awakening are reduced in male patients. Male first episode psychosis patients show markers of high stress vulnerability. Neurobiological deficits relate to poor outcome in male but not female patients. The neural-diathesis stress model of schizophrenia is particularly valid for men.
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Affiliation(s)
- Marita Pruessner
- Department of Psychiatry, Prevention and Early Intervention Program for Psychosis, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Martin Lepage
- Department of Psychiatry, Prevention and Early Intervention Program for Psychosis, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - D Louis Collins
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Jens C Pruessner
- Department of Psychiatry, McGill Centre for Studies in Aging, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Ridha Joober
- Department of Psychiatry, Prevention and Early Intervention Program for Psychosis, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Ashok K Malla
- Department of Psychiatry, Prevention and Early Intervention Program for Psychosis, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
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95
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Ambulatory assessment as a means of longitudinal phenotypes characterization in psychiatric disorders. Neurosci Res 2014; 102:13-21. [PMID: 25448546 DOI: 10.1016/j.neures.2014.10.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 10/28/2014] [Accepted: 10/31/2014] [Indexed: 12/27/2022]
Abstract
Ambulatory Assessment (AA) comprises the use of in-field methods to assess individuals' behavior, physiology, and the experience as they unfold in naturalistic settings. We propose that AA is favorable for the investigation of gene-environment interactions and for the search for endophenotypes, being able to assess the experienced environment and to track basic regulatory processes, such as stress reactivity, affective instability, and reward experience, which are potential common factors that underlie psychiatric disorders. In this article, we (a) first describe briefly the rationale of AA and summarize the key advantages of the approach, (b) highlight within-subject regulatory processes, such as stress reactivity, affective instability, and reward experience, (c) describe studies that used AA to examine genetic influences in psychiatric disorders, and (d) briefly review longitudinal studies that have investigated phenotypes of psychiatric disorders. The reported studies yielded promising, although sometimes inconclusive evidence for genetic effects on endophenotypes of psychiatric disorders. Moreover, most studies were twin or family studies, especially in stress-sensitivity research; thus, it is unclear which specific single nucleotide polymorphisms contribute to the endophenotypes of psychiatric disorders. We do hope that within-subject regulatory processes will enable us to clarify the fundamental psychological dimensions that cut across traditional disorders and link them to their genetic underpinnings.
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96
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Grammenos D, Barker SA. On the transmethylation hypothesis: stress, N,N-dimethyltryptamine, and positive symptoms of psychosis. J Neural Transm (Vienna) 2014; 122:733-9. [PMID: 25362533 DOI: 10.1007/s00702-014-1329-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 10/27/2014] [Indexed: 10/24/2022]
Abstract
Past research suggests a relationship between stress and positive symptoms of psychosis. However, the biological substrate of this relationship remains unknown. According to the transmethylation hypothesis, schizophrenia could result from a biochemical disruption in the stress mechanism. This biochemical disruption would lead to the production of a substance that would account for the symptoms of psychosis. Moreover, some studies have tested endogenous N,N-dimethyltryptamine (DMT) in the context of the transmethylation hypothesis. Stress has been found to elevate DMT levels in rodents. Also, elevated DMT levels have been associated with positive features of psychosis in psychiatric patients. Additionally, healthy participants treated with exogenous DMT experience predominantly positive symptoms of psychosis. The present paper examines endogenous DMT as a possible biological mediator of the relationship between stress and positive symptoms of psychosis.
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Affiliation(s)
- Dionysios Grammenos
- Department of Psychology, Faculty of Behavioural and Social Sciences, University of Groningen, Grote Kruisstraat 2/1, 9712 TS, Groningen, The Netherlands,
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97
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Mamah D, Owoso A, Sheffield JM, Bayer C. The WERCAP Screen and the WERC Stress Screen: psychometrics of self-rated instruments for assessing bipolar and psychotic disorder risk and perceived stress burden. Compr Psychiatry 2014; 55:1757-71. [PMID: 25128205 DOI: 10.1016/j.comppsych.2014.07.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 07/02/2014] [Accepted: 07/02/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Identification of individuals in the prodromal phase of bipolar disorder and schizophrenia facilitates early intervention and promises an improved prognosis. There are no current assessment tools for clinical risk symptoms of bipolar disorder, and psychosis-risk assessment generally involves semi-structured interviews, which are time consuming and rater dependent. We present psychometric data on two novel quantitative questionnaires: the Washington Early Recognition Center Affectivity and Psychosis (WERCAP) Screen for assessing bipolar and psychotic disorder risk traits, and the accompanying WERC Stress Screen for assessing individual and total psychosocial stressor severities. METHODS Prevalence rates of the WERCAP Screen were evaluated among 171 community youth (aged 13-24 years); internal consistency was assessed and k-means cluster analysis was used to identify symptom groups. In 33 participants, test-retest reliability coefficients were assessed, and ROC curve analysis was used to determine the validity of the psychosis section of the WERCAP Screen (pWERCAP) against the Structured Interview of Psychosis-Risk Symptoms (SIPS). Correlations of the pWERCAP, the affectivity section of the WERCAP Screen (aWERCAP) and the WERC Stress Screen were examined to determine the relatedness of scores with cognition and clinical measures. RESULTS Cluster analysis identified three groups of participants: a normative (47%), a psychosis-affectivity (18%) and an affectivity only (35%) group. Internal consistency of the aWERCAP and pWERCAP resulted in alphas of 0.87 and 0.92, and test-retest reliabilities resulted in intraclass correlation coefficients of 0.76 and 0.86 respectively. ROC curve analysis showed the optimal cut-point on the pWERCAP as a score of >30 (sensitivity: 0.89; specificity: 1.0). There was a significant negative correlation between aWERCAP scores and total cognition (R=-0.42), and between pWERCAP scores and sensorimotor processing speed. Total stress scores correlated significantly with scores on the aWERCAP (R=0.88), pWERCAP (R=0.62) and total cognition (R=-0.44). CONCLUSIONS Our results show that the WERCAP Screen and the WERC Stress Screen are easy to administer and derived scores are related to cognitive and clinical traits. This suggests that their use could have particular benefits for epidemiologic studies and in busy clinical settings. Longitudinal studies would be required to evaluate clinical outcomes with high questionnaire scores.
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Affiliation(s)
- Daniel Mamah
- Department of Psychiatry, Washington University, St. Louis, Missouri.
| | - Akinkunle Owoso
- Department of Psychiatry, Washington University, St. Louis, Missouri
| | - Julia M Sheffield
- Department of Psychology, Washington University, St. Louis, Missouri
| | - Chelsea Bayer
- Department of Psychiatry, Washington University, St. Louis, Missouri
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98
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McGorry P, Keshavan M, Goldstone S, Amminger P, Allott K, Berk M, Lavoie S, Pantelis C, Yung A, Wood S, Hickie I. Biomarkers and clinical staging in psychiatry. World Psychiatry 2014; 13:211-23. [PMID: 25273285 PMCID: PMC4219053 DOI: 10.1002/wps.20144] [Citation(s) in RCA: 204] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Personalized medicine is rapidly becoming a reality in today's physical medicine. However, as yet this is largely an aspirational goal in psychiatry, despite significant advances in our understanding of the biochemical, genetic and neurobiological processes underlying major mental disorders. Preventive medicine relies on the availability of predictive tools; in psychiatry we still largely lack these. Furthermore, our current diagnostic systems, with their focus on well-established, largely chronic illness, do not support a pre-emptive, let alone a preventive, approach, since it is during the early stages of a disorder that interventions have the potential to offer the greatest benefit. Here, we present a clinical staging model for severe mental disorders and discuss examples of biological markers that have already undergone some systematic evaluation and that could be integrated into such a framework. The advantage of this model is that it explicitly considers the evolution of psychopathology during the development of a mental illness and emphasizes that progression of illness is by no means inevitable, but can be altered by providing appropriate interventions that target individual modifiable risk and protective factors. The specific goals of therapeutic intervention are therefore broadened to include the prevention of illness onset or progression, and to minimize the risk of harm associated with more complex treatment regimens. The staging model also facilitates the integration of new data on the biological, social and environmental factors that influence mental illness into our clinical and diagnostic infrastructure, which will provide a major step forward in the development of a truly pre-emptive psychiatry.
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Affiliation(s)
- Patrick McGorry
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Matcheri Keshavan
- Beth Israel Deaconess Medical Centre, Harvard Medical SchoolBoston, MA, USA
| | - Sherilyn Goldstone
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Paul Amminger
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Kelly Allott
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Michael Berk
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia,School of Medicine, Deakin UniversityGeelong, Australia
| | - Suzie Lavoie
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne, MelbourneAustralia
| | - Alison Yung
- Institute of Brain, Behaviour and Mental Health, University of Manchester, ManchesterUK
| | - Stephen Wood
- School of Psychology, University of Birmingham, BirminghamUK
| | - Ian Hickie
- Brain and Mind Research Institute, University of Sydney, SydneyAustralia
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99
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Vermersch C, Geoffroy PA, Fovet T, Thomas P, Amad A. [Travel and psychotic disorders: clinical aspects and practical recommendations]. Presse Med 2014; 43:1317-24. [PMID: 25220438 DOI: 10.1016/j.lpm.2014.05.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 04/25/2014] [Accepted: 05/05/2014] [Indexed: 11/30/2022] Open
Abstract
Psychotic disorders are frequent among travelers (10 to 20 % of medical evacuations). The travel is a concentrate of stressors. Psychotic disorders are not a contraindication to travel. Special precautions should be taken for patients with psychotic disorders wishing to travel. These precautions could apply to patients at risk of transition to a psychotic disorder.
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Affiliation(s)
- Charles Vermersch
- CHRU de Lille, université Lille Nord-de-France, pôle de psychiatrie, 59000 Lille, France
| | - Pierre Alexis Geoffroy
- CHRU de Lille, université Lille Nord-de-France, pôle de psychiatrie, 59000 Lille, France
| | - Thomas Fovet
- CHRU de Lille, université Lille Nord-de-France, pôle de psychiatrie, 59000 Lille, France
| | - Pierre Thomas
- CHRU de Lille, université Lille Nord-de-France, pôle de psychiatrie, 59000 Lille, France
| | - Ali Amad
- CHRU de Lille, université Lille Nord-de-France, pôle de psychiatrie, 59000 Lille, France.
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100
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Refining and integrating schizophrenia pathophysiology – Relevance of the allostatic load concept. Neurosci Biobehav Rev 2014; 45:183-201. [DOI: 10.1016/j.neubiorev.2014.06.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 04/02/2014] [Accepted: 06/09/2014] [Indexed: 12/20/2022]
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