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Murray SB, Strober M, Le Grange D, Schauer R, Craske MG, Zbozinek TD. A multi-modal assessment of fear conditioning in adolescent anorexia nervosa. Int J Eat Disord 2024; 57:1499-1509. [PMID: 38415877 DOI: 10.1002/eat.24180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVE Anorexia nervosa (AN) is a pernicious psychiatric disorder which is principally characterized by a fear of weight gain. Notwithstanding the centrality of fear in the psychopathology of AN, controlled assessments of negative valence systems are lacking. Herein we assess fear conditioning in adolescent females with AN. METHOD Adolescent girls (Mage = 14.6 years, ±1.57) with DSM-5 diagnoses of AN (N = 25) and age-matched control girls (Mage = 14.8 years, ±1.46) with no DSM-5 diagnoses (N = 25) completed structured clinical interviews and participated in a classical three-phase Pavlovian fear conditioning paradigm. Participants with comorbid anxiety disorders were excluded. Skin conductance response (SCR) was measured, alongside self-reported fear, valence, and fear expectancy ratings. RESULTS Both groups demonstrated significant differential acquisition across all four measures. Regarding group comparisons, no differences emerged for self-reported fear, valence, and fear expectancy ratings during acquisition, although for SCR, those with AN demonstrated reduced physiological arousal relative to controls. Both groups demonstrated significant differential extinction for unconditioned stimuli (US) expectancy, self-report fear, and self-report valence. No statistically significant group differences were evident during extinction to the conditioned stimuli (CS)+, on any outcome measure. However, controls reported more positive valence to the CS- than those with AN. CONCLUSIONS Contrary to our hypotheses, our preliminary assessment did not find support for elevated fear responding among adolescent girls with AN with regards to fear acquisition or extinction. These data suggest that AN in adolescent girls may not be associated with a heightened propensity to acquire fear, but conversely, may suggest that exposure treatments for AN may be helpful, since extinction learning is intact in AN. PUBLIC SIGNIFICANCE AN is characterized by fear-related symptoms, including food and weight-related fear, and behavioral avoidance, yet controlled studies assessing fear learning are limited. Our preliminary assessment of adolescent AN indicates no abnormalities in fear learning among adolescents with AN. These findings may inform existing mechanistic models of AN psychopathology, and the development of exposure-based treatments for AN.
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Affiliation(s)
- Stuart B Murray
- Department of Psychiatry & Behavioral Sciences, University of Southern California, Los Angeles, California, USA
| | - Michael Strober
- Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - Daniel Le Grange
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, California, USA
- Department of Psychiatry and Behavioral Neuroscience (Emeritus), The University of Chicago, Chicago, Illinois, USA
| | - Rebecca Schauer
- Department of Psychiatry & Behavioral Sciences, University of Southern California, Los Angeles, California, USA
| | - Michelle G Craske
- Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
- Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, California, USA
| | - Tomislav D Zbozinek
- Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
- Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, California, USA
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Pruccoli J, Mack I, Klos B, Schild S, Stengel A, Zipfel S, Giel KE, Schag K. Mental Health Variables Impact Weight Loss, Especially in Patients with Obesity and Binge Eating: A Mediation Model on the Role of Eating Disorder Pathology. Nutrients 2023; 15:3915. [PMID: 37764699 PMCID: PMC10537364 DOI: 10.3390/nu15183915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Various mental health and eating behavior variables have been independently associated with predicting weight loss in individuals with obesity. This study aims to investigate a mediation model that assesses the distinct contributions of these variables in predicting weight changes in patients with obesity following an outpatient behavioral weight loss intervention (BWLI). METHODS General mental health (depression, anxiety, stress, impulsivity), eating behavior (cognitive restraint, disinhibition, hunger), eating disorder pathology, and body mass index (BMI) were assessed in a group of 297 patients with obesity at the admission of a BWLI program. BMI was re-evaluated during the final treatment session. A mediation model was employed to examine whether mental health and eating behavior variables predicted BMI changes, with eating disorder pathology serving as a mediator. The model was tested both overall and within two patient subgroups: those with regular binge eating (≥four episodes/month) and those without. RESULTS In the overall sample (n = 238), the relationships between depression, impulsivity, and cognitive restraint with BMI change were mediated by eating disorder pathology. In the subgroup with regular binge eating (n = 99, 41.6%), the associations between stress and disinhibition with BMI change were additionally mediated by eating disorder pathology. In the subgroup without regular binge eating, eating disorder pathology showed no mediating effect. DISCUSSION Multiple mental health and eating behavior variables assessed at admission predicted BMI changes, particularly when mediated by eating disorder pathology in patients with regular binge eating. A comprehensive psychopathological assessment prior to starting BWLI may help identify multiple factors affecting prognosis and treatment outcomes. Long-term follow-up studies in this field are required.
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Affiliation(s)
- Jacopo Pruccoli
- Pediatric Neurology and Psychiatry Unit, IRCCS Istituto delle Scienze Neurologiche di Bologna, Regional Center for Feeding and Eating Disorders in the Developmental Age, 40138 Bologna, Italy;
- Department of Medical and Surgical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Isabelle Mack
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
| | - Bea Klos
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
| | - Sandra Schild
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
| | - Andreas Stengel
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
- DZPG (German Center for Mental Health), 72076 Tübingen, Germany
- Department for Psychosomatic Medicine, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität at Berlin, and Berlin Institute of Health, 12203 Berlin, Germany
| | - Stephan Zipfel
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
- DZPG (German Center for Mental Health), 72076 Tübingen, Germany
| | - Katrin Elisabeth Giel
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
- DZPG (German Center for Mental Health), 72076 Tübingen, Germany
| | - Kathrin Schag
- Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany; (B.K.); (S.S.); (A.S.); (S.Z.); (K.E.G.); (K.S.)
- Centre of Excellence for Eating Disorders Tübingen (KOMET), 72076 Tübingen, Germany
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3
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Seretis D, Hart CM, Maguire T. Validity of a Revised Obsessive-Compulsive Personality Disorder (OCPD) Trait Profile and Its Relationship with Social Interaction Anxiety and Coping. J Pers Assess 2023; 105:647-656. [PMID: 36469688 DOI: 10.1080/00223891.2022.2145963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 12/12/2022]
Abstract
There is evidence suggesting that the conceptualization and operationalization of Obsessive-Compulsive Personality Disorder (OCPD) is not satisfactory (Watters et al., 2019). In this study, we used an online sample (N = 1008) to investigate the construct validity of the PID-5 OCPD trait measure. Regression analyses supported our hypothesis that rigid perfectionism captured the core phenomenology of OCPD whereas restricted affectivity and intimacy avoidance were not conceptually related to the OCPD construct. Based on the biosocial theory for overcontrol (Lynch, 2018), we introduced anxiousness and workaholism to the PID-5 OCPD trait profile. In establishing the validity of the revised OCPD trait profile, we investigated, for the first time, the role of social interaction anxiety and maladaptive coping in OCPD. Our revised OCPD profile showed good validity and was characterized by marked social interaction anxiety and dysfunctional coping mechanisms. The findings may lead to a new conceptualization of OCPD which prioritizes deficits in social interaction and coping. We identify areas that need to be prioritized in the evaluation of OCPD by mental health professionals and offer avenues for new clinical research in the field.
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Affiliation(s)
- Dionysis Seretis
- Department of Psychology, University of Southampton, Southampton, UK
| | - Claire M Hart
- Department of Psychology, University of Southampton, Southampton, UK
| | - Tess Maguire
- Department of Psychology, University of Southampton, Southampton, UK
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4
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Bang L, Bahrami S, Hindley G, Smeland OB, Rødevand L, Jaholkowski PP, Shadrin A, Connell KSO, Frei O, Lin A, Rahman Z, Cheng W, Parker N, Fan CC, Dale AM, Djurovic S, Bulik CM, Andreassen OA. Genome-wide analysis of anorexia nervosa and major psychiatric disorders and related traits reveals genetic overlap and identifies novel risk loci for anorexia nervosa. Transl Psychiatry 2023; 13:291. [PMID: 37658054 PMCID: PMC10474135 DOI: 10.1038/s41398-023-02585-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 07/04/2023] [Accepted: 08/10/2023] [Indexed: 09/03/2023] Open
Abstract
Anorexia nervosa (AN) is a heritable eating disorder (50-60%) with an array of commonly comorbid psychiatric disorders and related traits. Although significant genetic correlations between AN and psychiatric disorders and related traits have been reported, their shared genetic architecture is largely understudied. We investigated the shared genetic architecture of AN and schizophrenia (SCZ), bipolar disorder (BIP), major depression (MD), mood instability (Mood), neuroticism (NEUR), and intelligence (INT). We applied the conditional false discovery rate (FDR) method to identify novel risk loci for AN, and conjunctional FDR to identify loci shared between AN and related phenotypes, to summarize statistics from relevant genome-wide association studies (GWAS). Individual GWAS samples varied from 72,517 to 420,879 participants. Using conditional FDR we identified 58 novel AN loci. Furthermore, we identified 38 unique loci shared between AN and major psychiatric disorders (SCZ, BIP, and MD) and 45 between AN and psychological traits (Mood, NEUR, and INT). In line with genetic correlations, the majority of shared loci showed concordant effect directions. Functional analyses revealed that the shared loci are involved in 65 unique pathways, several of which overlapped across analyses, including the "signal by MST1" pathway involved in Hippo signaling. In conclusion, we demonstrated genetic overlap between AN and major psychiatric disorders and related traits, and identified novel risk loci for AN by leveraging this overlap. Our results indicate that some shared characteristics between AN and related disorders and traits may have genetic underpinnings.
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Affiliation(s)
- Lasse Bang
- Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway
- Regional Department for Eating Disorders, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Shahram Bahrami
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
| | - Guy Hindley
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Olav B Smeland
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Linn Rødevand
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Piotr P Jaholkowski
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Alexey Shadrin
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Kevin S O' Connell
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Oleksandr Frei
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Aihua Lin
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Zillur Rahman
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Weiqiu Cheng
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Nadine Parker
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Chun C Fan
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
- Department of Cognitive Science, University of California, San Diego, La Jolla, CA, USA
| | - Anders M Dale
- Department of Radiology, University of California, San Diego, La Jolla, CA, USA
- Multimodal Imaging Laboratory, University of California San Diego, La Jolla, CA, USA
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Srdjan Djurovic
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
- NORMENT Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Cynthia M Bulik
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ole A Andreassen
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
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5
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Yilmaz Z, Schaumberg K, Halvorsen M, Goodman EL, Brosof LC, Crowley JJ, Mathews CA, Mattheisen M, Breen G, Bulik CM, Micali N, Zerwas SC. Predicting eating disorder and anxiety symptoms using disorder-specific and transdiagnostic polygenic scores for anorexia nervosa and obsessive-compulsive disorder. Psychol Med 2023; 53:3021-3035. [PMID: 35243971 PMCID: PMC9440960 DOI: 10.1017/s0033291721005079] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 11/09/2021] [Accepted: 11/19/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND Clinical, epidemiological, and genetic findings support an overlap between eating disorders, obsessive-compulsive disorder (OCD), and anxiety symptoms. However, little research has examined the role of genetics in the expression of underlying phenotypes. We investigated whether the anorexia nervosa (AN), OCD, or AN/OCD transdiagnostic polygenic scores (PGS) predict eating disorder, OCD, and anxiety symptoms in a large developmental cohort in a sex-specific manner. METHODS Using summary statistics from Psychiatric Genomics Consortium AN and OCD genome-wide association studies, we conducted an AN/OCD transdiagnostic genome-wide association meta-analysis. We then calculated AN, OCD, and AN/OCD PGS in participants from the Avon Longitudinal Study of Parents and Children to predict eating disorder, OCD, and anxiety symptoms, stratified by sex (combined N = 3212-5369 per phenotype). RESULTS The PGS prediction of eating disorder, OCD, and anxiety phenotypes differed between sexes, although effect sizes were small. AN and AN/OCD PGS played a more prominent role in predicting eating disorder and anxiety risk than OCD PGS, especially in girls. AN/OCD PGS provided a small boost over AN PGS in the prediction of some anxiety symptoms. All three PGS predicted higher compulsive exercise across different developmental timepoints [β = 0.03 (s.e. = 0.01) for AN and AN/OCD PGS at age 14; β = 0.05 (s.e. = 0.02) for OCD PGS at age 16] in girls. CONCLUSIONS Compulsive exercise may have a transdiagnostic genetic etiology, and AN genetic risk may play a role in the presence of anxiety symptoms. Converging with prior twin literature, our results also suggest that some of the contribution of genetic risk may be sex-specific.
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Affiliation(s)
- Zeynep Yilmaz
- National Centre for Register-based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Katherine Schaumberg
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
- Department of Psychiatry, University of Wisconsin, Madison, WI, USA
| | - Matthew Halvorsen
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Erica L. Goodman
- Department of Psychology, University of North Dakota, Grand Forks, ND, USA
| | - Leigh C. Brosof
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, USA
| | - James J. Crowley
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | - Carol A. Mathews
- Department of Psychiatry, Genetics Institute, University of Florida, Gainesville, FL, USA
| | - Manuel Mattheisen
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Biomedicine, Aarhus University, Høegh-Guldbergs Gade 10, Aarhus, Denmark
- The Lundbeck Foundation Initiative of Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Gerome Breen
- Institute of Psychiatry, Psychology and Neuroscience, MRC Social, Genetic and Developmental Psychiatry (SGDP) Centre, King's College London, London, UK
- National Institute for Health Research Biomedical Research Centre, South London and Maudsley National Health Service Trust, London, UK
| | - Cynthia M. Bulik
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, HUG, Geneva, Switzerland
- Institute of Child Health, University College London, London, UK
- Department of Paediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, HUG, Geneva, Switzerland
| | - Stephanie C. Zerwas
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
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6
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Mahr F, Bunce SC, Meyer RE, Halmi KA. Affect Modulated Startle Response in Anorexia Nervosa, Restricting Type: Implications for Theory and Practice. Cureus 2022; 14:e27304. [PMID: 36039238 PMCID: PMC9403399 DOI: 10.7759/cureus.27304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2022] [Indexed: 11/29/2022] Open
Abstract
Objective: Individuals with anorexia nervosa (AN), restricting type demonstrate unique emotional responses to hedonically positive stimuli beyond eating disorder (ED)-related stimuli. The goal of this study was to evaluate differences in responses to five types of emotionally positive stimuli among acutely ill anorexia nervosa (IAN), restricting type patients, weight-recovered anorexia patients (WRAN), and healthy controls (HCs) using affect modulated startle response (AMSR) as an objective measure. Method: A total of 28 participants were recruited (n=28). Fourteen participants were recruited as IAN using the Diagnostic and Statistical Manual of Mental Disorders-V (DSM-V) criteria, seven were WRAN, and seven were HC females. All participants were female and aged between 8 and 18 years. The participants viewed images depicting negative, neutral, standardized, and non-eating disorder (ED)-related positive stimuli. Additionally, four categories of ED-related stimuli (high-calorie food, body image, success, and parent-child relationships) were presented to all participants during a standard AMSR paradigm. Results: No significant between-group differences were found for any of the four ED stimulus categories; all groups showed an inhibited startle response to the four ED-related categories. In contrast, IAN and WRAN showed reduced hedonic responses to standardized positive stimuli relative to HC-replicating previous results. Reduced hedonic response to the standardized (non-ED) positive stimuli was highly correlated with self-reported social anxiety, low self-esteem, body dissatisfaction, asceticism, interpersonal problems, and ineffectiveness. Conclusion: AN patients had a reduced hedonic response to some non-ED-related positive stimuli, which correlated with several anxiety-related traits. In contrast, their early automatic responses to high-calorie food, normal weight models, images of success, and positive parent-child relationships did not differ from HC, suggesting these stimuli are either being evaluated as highly interesting or hedonically positive.
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Williams BM, Brown ML, Sandoval-Araujo L, Russell S, Levinson CA. Psychiatric Comorbidity Among Eating Disorders and Obsessive-Compulsive Disorder and Underlying Shared Mechanisms and Features: An Updated Review. J Cogn Psychother 2022; 36:226-246. [PMID: 35882534 DOI: 10.1891/jcpsy-d-2021-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Eating disorders (EDs) are highly comorbid with obsessive-compulsive disorder (OCD), with comorbidity rates as high as 41%. In the current review, we summarize the literature regarding the prevalence of ED-OCD comorbidity. We also identify and review the literature assessing shared features (i.e., shared characteristics or symptoms) and mechanisms (i.e., variables that may explain ED or OCD symptoms) of EDs and OCD. Potential shared features of EDs and OCD include age of onset, course of illness, obsessions, compulsions and ritualistic behaviors, and thought action fusion. Shared mechanisms that may explain ED-OCD comorbidity include genetic and neurobiological mechanisms, anxiety and fear, repetitive negative thinking, perfectionism, intolerance of uncertainty, distress tolerance, and impulsivity. Based on these shared features and mechanisms, a theoretical conceptualization of ED and OCD comorbidity is developed, and outline considerations for assessment, differential diagnosis, treatment, and future research regarding ED-OCD comorbidity are described.
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Affiliation(s)
- Brenna M Williams
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY
| | - Mackenzie L Brown
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY
| | - Luis Sandoval-Araujo
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY
| | | | - Cheri A Levinson
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY
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8
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Milton LK, Patton T, O'Keeffe M, Oldfield BJ, Foldi CJ. In pursuit of biomarkers for predicting susceptibility to activity-based anorexia in adolescent female rats. Int J Eat Disord 2022; 55:664-677. [PMID: 35302253 PMCID: PMC9311799 DOI: 10.1002/eat.23705] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/01/2022] [Accepted: 03/01/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Identifying risk factors that contribute to the development of anorexia nervosa (AN) is critical for the implementation of early intervention strategies. Anxiety, obsessive-compulsive behavior, and immune dysfunction may be involved in the development of AN; however, their direct influence on susceptibility to the condition remains unclear. Here, we used the activity-based anorexia (ABA) model to examine whether activity, anxiety-like behavior, compulsive behavior, and circulating immune markers predict the subsequent development of pathological weight loss. METHOD Female Sprague-Dawley rats (n = 44) underwent behavioral testing before exposure to ABA conditions after which they were separated into susceptible and resistant subpopulations. Blood was sampled before behavioral testing and after recovery from ABA to screen for proinflammatory cytokines. RESULTS Rats that were vulnerable to pathological weight loss differed significantly from resistant rats on all key ABA parameters. While the primary measures of anxiety-like or compulsive behavior were not shown to predict vulnerability to ABA, increased locomotion and anxiety-like behavior were both associated with the extent of weight loss in susceptible but not resistant animals. Moreover, the change in expression of proinflammatory markers IL-4 and IL-6 evoked by ABA was associated with discrete vulnerability factors. Intriguingly, behavior related to risk assessment was shown to predict vulnerability to ABA. DISCUSSION We did not find undisputable behavioral or immune predictors of susceptibility to pathological weight loss in the ABA rat model. Future research should examine the role of cognition in the development of ABA, dysfunction of which may represent an endophenotype linking anorectic, anxiety-like and compulsive behavior. PUBLIC SIGNIFICANCE Anorexia nervosa (AN) has among the highest mortality rates of all psychiatric disorders and treatment options remain limited in their efficacy. Understanding what types of risk factors contribute to the development of AN is essential for implementing early intervention strategies. This study describes how some of the most common psychological features of AN could be used to predict susceptibility to pathological weight loss in a well-established animal model.
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Affiliation(s)
- Laura Karina Milton
- Department of PhysiologyMonash UniversityClaytonVictoriaAustralia,Monash Biomedicine Discovery InstituteClaytonVictoriaAustralia
| | - Timothy Patton
- Department of Biochemistry and Molecular BiologyMonash UniversityClaytonVictoriaAustralia,Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and ImmunityUniversity of MelbourneElizabethVictoriaAustralia
| | - Meredith O'Keeffe
- Department of Biochemistry and Molecular BiologyMonash UniversityClaytonVictoriaAustralia
| | - Brian John Oldfield
- Department of PhysiologyMonash UniversityClaytonVictoriaAustralia,Monash Biomedicine Discovery InstituteClaytonVictoriaAustralia
| | - Claire Jennifer Foldi
- Department of PhysiologyMonash UniversityClaytonVictoriaAustralia,Monash Biomedicine Discovery InstituteClaytonVictoriaAustralia
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9
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Obsessive-compulsive symptoms in young women affected with anorexia nervosa, and their relationship with personality, psychopathology, and attachment style. Eat Weight Disord 2022; 27:1193-1207. [PMID: 34189704 PMCID: PMC8964650 DOI: 10.1007/s40519-021-01252-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 11/11/2022] Open
Abstract
PURPOSE Obsessive-compulsive symptoms (OC) are associated with greater morbidity and worse prognosis in anorexia nervosa (AN). We assessed the presence of non-eating OC in participants with AN and related them with their psychopathology, personality, and attachment style features. METHODS Young women with AN (N = 41, 30 restrictor and 11 binge-purging type) were assessed on the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS). These participants with AN and 82 healthy controls (HC) completed the Temperament and Character Inventory (TCI), Eating Disorder Inventory-2 (EDI-2), Symptom Checklist-90 (SCL-90), Toronto Alexithymia Scale (TAS-20), and Attachment Style Questionnaire (ASQ). The association between Y-BOCS scores and indexes of psychopathology, personality, and attachment were examined. RESULTS AN had significantly higher scores than HC on the EDI-2, SCL-90, TAS-20, ASQ-Need for Approval, and TCI-Harm Avoidance and Self-directedness. The Y-BOCS scores were significantly correlated with ASQ-Need for Approval, TAS-20-Difficulty in Describing Feelings, SCL-90-Phobic Anxiety, and Anxiety, EDI-2-Drive to Thinness, and Asceticism. Need for Approval displayed the strongest correlation with OC symptoms. Difficulty in describing feelings displayed the strongest correlation with compulsive OC symptoms. CONCLUSIONS OC traits in AN were primarily associated with measures of insecure attachment rather than to their eating disorder or general psychopathology. Therapeutic approaches to correcting insecure attachment may be considered as a possible approach to treating AN patients with OC. The study supports a new psychopathological perspective for understanding the meaning of OC symptoms in AN. LEVEL OF EVIDENCE III: Evidence obtained from cohort or case-control analytic studies.
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10
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Murray SB, Strober M, Tadayonnejad R, Bari AA, Feusner JD. Neurosurgery and neuromodulation for anorexia nervosa in the 21st century: a systematic review of treatment outcomes. Eat Disord 2022; 30:26-53. [PMID: 32991247 PMCID: PMC8386186 DOI: 10.1080/10640266.2020.1790270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
As current psychosocial and pharmacological interventions show limited efficacy in the treatment of anorexia nervosa (AN), interest in the potential value of neurosurgical intervention and neuromodulation in managing severe and enduring illness has grown. We conducted a systematic review of 20 trials of neurosurgical and neuromodulatory treatments for AN, including neurosurgical ablation, deep brain stimulation (DBS), repetitive transcranial magnetic stimulation (rTMS), and transcranial direct current stimulation (tDCS). Overall, there is evidence to support the role of stereotactic ablation and DBS in the treatment of AN. In contrast, results for rTMS and tDCS have been modest and generally more mixed. Neurosurgical treatment may offer important new avenues for the treatment of AN. Additional randomized clinical trials with comparable patient populations will be needed, in which change in affective, cognitive, and perceptual symptom phenomena, and interrogation of targeted circuits, pre- and post-intervention, are carefully documented.
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Affiliation(s)
- Stuart B Murray
- Department of Psychiatry and the Behavioral Sciences, University of Southern California, Los Angeles, California, USA
| | - Michael Strober
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - Reza Tadayonnejad
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - Ausaf A Bari
- Department of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA
| | - Jamie D Feusner
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
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11
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Schwenzer C, Voelz C, Kogel V, Schlösser A, Herpertz-Dahlmann B, Beyer C, Seitz J, Trinh S. Fear and food: Anxiety-like behavior and the susceptibility to weight loss in an activity-based anorexia rat model. Clin Transl Sci 2021; 15:889-898. [PMID: 34793620 PMCID: PMC9010269 DOI: 10.1111/cts.13196] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/19/2021] [Accepted: 11/01/2021] [Indexed: 12/31/2022] Open
Abstract
Anorexia nervosa (AN) is a severe psychiatric disorder characterized by energy restriction, low body weight, a fear of gaining weight, and often excessive physical activity. Anxiety disorders appear to constitute a major risk factor for developing AN and are the most frequent comorbidity. Here, the influence of anxiety‐like behavior prior to food restriction on increased physical activity, leading to greater susceptibility to weight loss, was tested in rats. Furthermore, the possible anxiolytic effect of starvation itself was analyzed. A chronic starvation model activity‐based anorexia (ABA) was applied to mimic physiological and behavioral characteristics of AN. During the induction of starvation and acute starvation, food intake was reduced by 70% and the rats lost 25% of their body weight, which was kept stable to imitate chronic starvation. Anxiety‐like behavior was quantified before and after chronic starvation using the elevated plus maze, based on rodents’ aversion to open spaces. Anxiety‐related behavior before food restriction was associated with increased running‐wheel activity during habituation and during the induction of starvation, and predicted faster weight loss in ABA rats. Additionally, food‐restricted animals showed less anxiety‐like behavior after chronic starvation. Animals showing more anxiety‐like behavior appear to be more susceptible to weight loss, partially mediated by increased physical activity. Anxiety‐related behavior was associated with increased physical activity, which in turn was associated with more rapid weight loss. Our data let us assume that food restriction has an anxiolytic effect. These findings demonstrate the importance of considering anxiety disorders in patients with AN.
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Affiliation(s)
| | - Clara Voelz
- Institute of Neuroanatomy, RWTH Aachen University, Aachen, Germany
| | - Vanessa Kogel
- Institute of Neuroanatomy, RWTH Aachen University, Aachen, Germany
| | - Anna Schlösser
- Institute of Neuroanatomy, RWTH Aachen University, Aachen, Germany
| | - Beate Herpertz-Dahlmann
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Cordian Beyer
- Institute of Neuroanatomy, RWTH Aachen University, Aachen, Germany
| | - Jochen Seitz
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany
| | - Stefanie Trinh
- Institute of Neuroanatomy, RWTH Aachen University, Aachen, Germany
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12
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Song W, Wang W, Yu S, Lin GN. Dissection of the Genetic Association between Anorexia Nervosa and Obsessive-Compulsive Disorder at the Network and Cellular Levels. Genes (Basel) 2021; 12:491. [PMID: 33801746 PMCID: PMC8065602 DOI: 10.3390/genes12040491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/15/2022] Open
Abstract
Anorexia nervosa (AN) and obsessive-compulsive disorder (OCD) exhibit a high co-morbidity rate, similar symptoms, and a shared genetic basis. However, an understanding of the specific underlying mechanisms of these commonalities is currently limited. Here, we collected Genome-Wide Association Analysis results for AN and OCD, and obtained genes hit by the top SNPs as the risk genes. We then carried out an integrative coexpression network analysis to explore the convergence and divergence of AN and OCD risk genes. At first, we observed that the AN risk genes were enriched in coexpression modules that involved extracellular matrix functions and highly are expressed in the postnatal brain, limbic system, and non-neuronal cell types, while the OCD risk genes were enriched in modules of synapse function, the prenatal brain, cortex layers, and neurons. Next, by comparing the expressions from the eating disorder and OCD postmortem patient brain tissues, we observed both disorders have similar prefrontal cortex expression alterations influencing the synapse transmission, suggesting that the two diseases could have similar functional pathways. We found that the AN and OCD risk genes had distinct functional and spatiotemporal enrichment patterns but carried similar expression alterations as a disease mechanism, which may be one of the key reasons they had similar but not identical clinical phenotypes.
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Affiliation(s)
| | | | | | - Guan Ning Lin
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China; (W.S.); (W.W.); (S.Y.)
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13
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Levinson CA, Williams BM. Eating disorder fear networks: Identification of central eating disorder fears. Int J Eat Disord 2020; 53:1960-1973. [PMID: 32918319 DOI: 10.1002/eat.23382] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Eating-related fear and anxiety are hallmark symptoms of eating disorders (EDs). However, it is still unclear which fears are most important (e.g., food, weight gain), which has practical implications, given treatments for eating-related fear necessitate modifications based on the specific fear driving ED pathology. For example, exposure treatments should be optimized based on specific fears that maintain pathology. The current study (N = 1,622 combined clinical ED and undergraduate sample) begins to answer questions on the precise nature of ED fears and how they operate with other ED symptoms. METHOD We used network analysis to create two models of ED fears and symptoms. The first model consisted of ED fears only (e.g., fears of food, fears of weight gain) to identify which fear is most central. The second model consisted of ED fears and ED symptoms to detect how ED fears operate with ED symptoms. RESULTS We found fear of disliking how one's body feels due to weight gain, disliking eating in social situations, feeling tense around food, fear of judgment due to weight gain, and food anxiety were the most central ED fears. We also identified several bridge symptoms between ED fears and symptoms. Finally, we found that the most central ED fears predicted excessive exercise at two-month follow-up. DISCUSSION These data support the idea that consequences (i.e., judgment) associated with fears of weight gain and interoceptive fears are the most central ED fears. These data have implications for the future development of precision interventions targeted to address ED-related fear.
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Affiliation(s)
- Cheri A Levinson
- Department of Psychological & Brain Sciences, University of Louisville, Louisville, Kentucky, USA
| | - Brenna M Williams
- Department of Psychological & Brain Sciences, University of Louisville, Louisville, Kentucky, USA
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14
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Lloyd EC, Sallis HM, Verplanken B, Haase AM, Munafò MR. Understanding the nature of association between anxiety phenotypes and anorexia nervosa: a triangulation approach. BMC Psychiatry 2020; 20:495. [PMID: 33028263 PMCID: PMC7542378 DOI: 10.1186/s12888-020-02883-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/19/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Evidence from observational studies suggests an association between anxiety disorders and anorexia nervosa (AN), but causal inference is complicated by the potential for confounding in these studies. We triangulate evidence across a longitudinal study and a Mendelian randomization (MR) study, to evaluate whether there is support for anxiety disorder phenotypes exerting a causal effect on AN risk. METHODS Study One assessed longitudinal associations of childhood worry and anxiety disorders with lifetime AN in the Avon Longitudinal Study of Parents and Children cohort. Study Two used two-sample MR to evaluate: causal effects of worry, and genetic liability to anxiety disorders, on AN risk; causal effects of genetic liability to AN on anxiety outcomes; and the causal influence of worry on anxiety disorder development. The independence of effects of worry, relative to depressed affect, on AN and anxiety disorder outcomes, was explored using multivariable MR. Analyses were completed using summary statistics from recent genome-wide association studies. RESULTS Study One did not support an association between worry and subsequent AN, but there was strong evidence for anxiety disorders predicting increased risk of AN. Study Two outcomes supported worry causally increasing AN risk, but did not support a causal effect of anxiety disorders on AN development, or of AN on anxiety disorders/worry. Findings also indicated that worry causally influences anxiety disorder development. Multivariable analysis estimates suggested the influence of worry on both AN and anxiety disorders was independent of depressed affect. CONCLUSIONS Overall our results provide mixed evidence regarding the causal role of anxiety exposures in AN aetiology. The inconsistency between outcomes of Studies One and Two may be explained by limitations surrounding worry assessment in Study One, confounding of the anxiety disorder and AN association in observational research, and low power in MR analyses probing causal effects of genetic liability to anxiety disorders. The evidence for worry acting as a causal risk factor for anxiety disorders and AN supports targeting worry for prevention of both outcomes. Further research should clarify how a tendency to worry translates into AN risk, and whether anxiety disorder pathology exerts any causal effect on AN.
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Affiliation(s)
- E Caitlin Lloyd
- Centre for Exercise, Nutrition and Health Sciences, School of Policy Studies, University of Bristol, Bristol, UK.
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA.
- Department of Psychiatry, New York State Psychiatric Institute, New York, NY, USA.
| | - Hannah M Sallis
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- School of Psychological Science, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | | | - Anne M Haase
- Centre for Exercise, Nutrition and Health Sciences, School of Policy Studies, University of Bristol, Bristol, UK
- Faculty of Health, Victoria University of Wellington, Wellington, New Zealand
- Public Health Sciences Division, Fred Hutchinson Cancer Research Centre, Seattle, Washington, USA
| | - Marcus R Munafò
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- School of Psychological Science, University of Bristol, Bristol, UK
- National Institute for Health Research Bristol Biomedical Research Centre at the University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, UK
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15
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Yilmaz Z, Halvorsen M, Bryois J, Yu D, Thornton LM, Zerwas S, Micali N, Moessner R, Burton CL, Zai G, Erdman L, Kas MJ, Arnold PD, Davis LK, Knowles JA, Breen G, Scharf JM, Nestadt G, Mathews CA, Bulik CM, Mattheisen M, Crowley JJ. Examination of the shared genetic basis of anorexia nervosa and obsessive-compulsive disorder. Mol Psychiatry 2020; 25:2036-2046. [PMID: 30087453 PMCID: PMC6367065 DOI: 10.1038/s41380-018-0115-4] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/16/2018] [Accepted: 05/25/2018] [Indexed: 12/22/2022]
Abstract
Anorexia nervosa (AN) and obsessive-compulsive disorder (OCD) are often comorbid and likely to share genetic risk factors. Hence, we examine their shared genetic background using a cross-disorder GWAS meta-analysis of 3495 AN cases, 2688 OCD cases, and 18,013 controls. We confirmed a high genetic correlation between AN and OCD (rg = 0.49 ± 0.13, p = 9.07 × 10-7) and a sizable SNP heritability (SNP h2 = 0.21 ± 0.02) for the cross-disorder phenotype. Although no individual loci reached genome-wide significance, the cross-disorder phenotype showed strong positive genetic correlations with other psychiatric phenotypes (e.g., rg = 0.36 with bipolar disorder and 0.34 with neuroticism) and negative genetic correlations with metabolic phenotypes (e.g., rg = -0.25 with body mass index and -0.20 with triglycerides). Follow-up analyses revealed that although AN and OCD overlap heavily in their shared risk with other psychiatric phenotypes, the relationship with metabolic and anthropometric traits is markedly stronger for AN than for OCD. We further tested whether shared genetic risk for AN/OCD was associated with particular tissue or cell-type gene expression patterns and found that the basal ganglia and medium spiny neurons were most enriched for AN-OCD risk, consistent with neurobiological findings for both disorders. Our results confirm and extend genetic epidemiological findings of shared risk between AN and OCD and suggest that larger GWASs are warranted.
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Affiliation(s)
- Zeynep Yilmaz
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matthew Halvorsen
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Julien Bryois
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Dongmei Yu
- Department of Psychiatry, Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Laura M Thornton
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Stephanie Zerwas
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- UCL Institute of Child Health, UCL, London, UK
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rainald Moessner
- Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
| | - Christie L Burton
- Genetics & Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Gwyneth Zai
- Neurogenetics Section, Molecular Brain Science Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Lauren Erdman
- Genetics & Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Martien J Kas
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Paul D Arnold
- Genetics & Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Mathison Centre for Mental Health Research & Education, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Lea K Davis
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - James A Knowles
- SUNY Downstate Medical Center College of Medicine, Brooklyn, NY, USA
| | - Gerome Breen
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Jeremiah M Scharf
- Department of Psychiatry, Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Gerald Nestadt
- Department of Psychiatry and Behavioral Science, Johns Hopkins University, Baltimore, MD, USA
| | - Carol A Mathews
- Department of Psychiatry, Genetics Institute, University of Florida, Gainesville, FL, USA
| | - Cynthia M Bulik
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Manuel Mattheisen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- The Lundbeck Foundation Initiative of Integrative Psychiatric Research (iPSYCH), Aarhus, Denmark
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - James J Crowley
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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16
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Bohon C, Weinbach N, Lock J. Performance and brain activity during the Wisconsin Card Sorting Test in adolescents with obsessive-compulsive disorder and adolescents with weight-restored anorexia nervosa. Eur Child Adolesc Psychiatry 2020; 29:217-226. [PMID: 31114967 PMCID: PMC6868308 DOI: 10.1007/s00787-019-01350-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 05/11/2019] [Indexed: 12/31/2022]
Abstract
Anorexia nervosa (AN) and obsessive-compulsive disorder (OCD) both show a peak age of onset during adolescence and share a number of phenotypic features, such as rigid rule-bound behavior and perseverative thinking. There is evidence of difficulties with set shifting or task switching in adults with each disorder, but evidence in adolescents is limited. Furthermore, no studies have previously directly compared AN and OCD on this cognitive process or examined comparative neural correlates. This study provides exploratory analyses to address this gap by measuring brain activity with functional magnetic resonance imaging (fMRI) during a computerized version of the Wisconsin Card Sorting Test (WCST) in female adolescents with weight-restored AN (WR-AN) (n = 14), OCD (n = 11), and healthy controls (n = 24). Results revealed greater perseverative errors in the OCD group than healthy controls and WR-AN, but no difference between WR-AN and healthy controls. Greater activity in the right front pole, inferior frontal gyrus, and middle frontal gyrus during the task (compared to a control matching task) was associated with more perseverative errors in the OCD group, but not healthy controls. The correlation between perseverative errors and brain response to the task in the WR-AN group was not different from either comparison group. These findings propose a hypothesis that behavioral similarities between OCD and AN, as well as difficulties with set shifting in adults with AN, are driven by obsessive-compulsive features present in AN rather than a shared underlying neurocognitive signature. This notion should be tested in larger samples in future studies.
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Affiliation(s)
- Cara Bohon
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA, 94305-5719, USA.
| | - Noam Weinbach
- Department of Psychology, University of Haifa, Haifa, Israel
| | - James Lock
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA, 94305-5719, USA
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17
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Trainor C, Gorrell S, Hughes EK, Sawyer SM, Burton C, Le Grange D. Family-based treatment for adolescent anorexia nervosa: What happens to rates of comorbid diagnoses? EUROPEAN EATING DISORDERS REVIEW 2020; 28:351-357. [PMID: 31995262 DOI: 10.1002/erv.2725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/26/2019] [Accepted: 01/11/2020] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Rates of psychiatric comorbidity are elevated in adolescents with anorexia nervosa, but little is known about how psychiatric comorbidity changes following family-based treatment (FBT). METHODS Adolescents with anorexia nervosa (N = 107) enrolled in a randomized controlled trial comparing two forms of FBT completed the Mini International Neuropsychiatric Interview for Children and Adolescents at baseline and end of treatment. Analyses tested whether baseline comorbid diagnoses predicted the presence of comorbid diagnoses at end of treatment and if baseline eating disorder psychopathology impacted this association. RESULTS Rates of comorbid diagnoses decreased from 54% at baseline to 26% at end of treatment. Logistic regression analyses indicated that individuals with multiple comorbid diagnoses at baseline were more likely to meet criteria for a comorbid condition at end of treatment (b = 2.00, p < .05). Individuals with reported psychotropic medication use were less likely to meet criteria for a comorbid condition at end of treatment (b = -1.63, p = .04). Diagnostic rates for major depressive disorder, generalized anxiety disorder, and panic disorder/agoraphobia decreased following FBT. CONCLUSIONS Findings suggest that FBT for adolescent anorexia nervosa may aid in the resolution of some co-occurring psychiatric diagnoses. Continued research is needed to understand factors contributing to comorbid symptom improvement throughout treatment.
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Affiliation(s)
- Claire Trainor
- Department of Psychiatry, University of California, San Francisco, CA
| | - Sasha Gorrell
- Department of Psychiatry, University of California, San Francisco, CA
| | - Elizabeth K Hughes
- The University of Melbourne, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Susan M Sawyer
- The University of Melbourne, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Claire Burton
- The University of Melbourne, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Daniel Le Grange
- Department of Psychiatry, University of California, San Francisco, CA.,Department of Paediatrics, The University of Chicago, Chicago, IL
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18
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Lock J, Nicholls D. Toward A Greater Understanding of the Ways Family-Based Treatment Addresses the Full Range of Psychopathology of Adolescent Anorexia Nervosa. Front Psychiatry 2020; 10:968. [PMID: 32038319 PMCID: PMC6993050 DOI: 10.3389/fpsyt.2019.00968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/09/2019] [Indexed: 01/30/2023] Open
Abstract
Family-based treatment (FBT) for anorexia nervosa (AN) is an empirically supported treatment for this disorder. Derived from several different schools of family therapy, it is a highly focused approach that initially targets weight restoration under parental management at home. However, the view that manualized FBT is solely a behavioral therapy directing parents to refeed their children AN with the single purpose of weight gain is a common but misleading over simplification of the therapy. Indeed, weight restoration is the main goal only in phase 1 of this 3-phase treatment. When practiced with fidelity and skill, FBT's broadest aim is to promote adolescent development without AN thoughts and behaviors interfering and disrupting these normal processes. Although weight restoration is a key starting point in FBT, the entire course of treatment takes into consideration the ongoing impact of starvation, cognitions, emotions, and behaviors on adolescent development. These factors associated with maintaining low weight are viewed in FBT as interfering with the adolescent being able to take up the tasks of adolescence and thus must be overcome before fully turning to those broader adolescent tasks. In addition, FBT recognizes that adolescence takes place in the context of family and community and respects the importance of learning in a home environment both for weight gain as well as related developmental tasks to have a lasting effect. Specifically, in this article we describe how the current FBT manualized approach addresses temperament/personality traits, emotional processing, cognitive content and process, social communication and connections, psychiatric comorbidity, and family factors. This report makes no claim to superiority of FBT compared to other therapies in addressing these broader concerns nor does it add interventions to augment the current manual to improve FBT.
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Affiliation(s)
- James Lock
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, United States
| | - Dasha Nicholls
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom
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19
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Lloyd EC, Haase AM, Zerwas S, Micali N. Anxiety disorders predict fasting to control weight: A longitudinal large cohort study of adolescents. EUROPEAN EATING DISORDERS REVIEW 2019; 28:269-281. [PMID: 31849142 PMCID: PMC7192761 DOI: 10.1002/erv.2714] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 05/08/2019] [Accepted: 11/19/2019] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To determine whether anxiety disorders are prospectively associated with fasting for weight-loss/to avoid weight-gain, a behaviour that precedes and is typical of anorexia nervosa (AN), during adolescence. METHOD Participants were 2,406 female adolescents of the Avon Longitudinal Study of Parents and Children. Anxiety disorders were assessed when participants were aged 13-14 and 15-16; fasting was measured approximately 2 years after each anxiety assessment. Generalised estimating equation models examined whether anxiety disorders predicted later fasting, across the two longitudinal waves of data. To probe the moderating effect of time, data were stratified by wave and binary logistic regression analyses completed. RESULTS Across longitudinal waves, anxiety disorder presence predicted increased risk of later fasting. Evidence from wave-stratified analyses supported a positive association between anxiety disorder presence at wave 15-16 and fasting at wave 17-18, however did not indicate an association between anxiety disorders at wave 13-14 and fasting at wave 15-16. DISCUSSION Anxiety disorder presence in mid-late, but not early, adolescence predicted increased likelihood of later fasting. The differential association could be explained by anxiety being parent-reported at wave 13-14. Findings highlight anxiety disorder pathology as a possible eating disorder prevention target, though the nature of association observed requires clarification.
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Affiliation(s)
- E Caitlin Lloyd
- Centre for Exercise, Nutrition and Health Sciences, University of Bristol, Bristol, UK
| | - Anne M Haase
- Public Health Sciences Division, Fred Hutchinson Cancer Research Centre, Seattle, Washington
| | - Stephanie Zerwas
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Nadia Micali
- Department of Psychiatry, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Child and Adolescent Psychiatry, Department of Child and Adolescent Health, Geneva University Hospital, Geneva, Switzerland.,Great Ormond Street Institute of Child Health, University College London, London, UK
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20
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Levinson CA, Sala M, Murray S, Ma J, Rodebaugh TL, Lenze EJ. Diagnostic, clinical, and personality correlates of food anxiety during a food exposure in patients diagnosed with an eating disorder. Eat Weight Disord 2019; 24:1079-1088. [PMID: 30847689 PMCID: PMC6732034 DOI: 10.1007/s40519-019-00669-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 03/01/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Eating disorders are characterized by high levels of anxiety, especially while eating. However, little is known about anxiety experienced during meals and specifically what other variables may impact such anxiety. OBJECTIVE We sought to further quantify and understand the relationship between food anxiety, eating disorders, and related correlates (e.g., comorbid diagnoses, personality). METHODS In the current study [N = 42 participants diagnosed with an eating disorder (n = 36 participants with anorexia nervosa)], we quantified anxiety before, during, and after a meal using data from a food exposure session in a partial hospital eating disorder center. We examined diagnostic, personality, and clinical factors as correlates of food anxiety. RESULTS Participants were more likely to experience higher food anxiety if they had a current diagnosis of major depression, obsessive-compulsive disorder, or post-traumatic stress disorder (PTSD). Concern over mistakes was the strongest and most consistent correlate of food anxiety regardless of time during the meal that anxiety was assessed. Other significant correlates were fear of positive evaluation, social appearance anxiety, BMI, and trust. CONCLUSIONS These findings show how diagnoses, perfectionism (concern over mistakes), and other correlates relate to anxiety during meals. Food exposure interventions may benefit from personalizations that address these factors. LEVEL OF EVIDENCE IV Evidence from a randomized control trial, but from the first session before effects of the design would be present.
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Affiliation(s)
- Cheri A Levinson
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, 40292, USA.
| | - Margarita Sala
- Department of Psychology, Southern Methodist University, Dallas, TX, USA
| | - Stuart Murray
- Department of Psychiatry, University of California San Francisco, San Francisco, CA, USA
| | - Jackie Ma
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, 40292, USA
| | - Thomas L Rodebaugh
- Department of Psychological and Brain Sciences, Washington University, St. Louis, MO, USA
| | - Eric J Lenze
- Department of Psychiatry, Washington University, St. Louis, MO, USA
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21
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Kaplan AS, Strober M. Severe and enduring anorexia nervosa: Can risk of persisting illness be identified, and prevented, in young patients? Int J Eat Disord 2019; 52:478-480. [PMID: 30638275 DOI: 10.1002/eat.23019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/21/2018] [Accepted: 12/21/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Long-term outcome studies of anorexia nervosa (AN) have demonstrated that up to 20% of cases will follow an unremitting course despite many attempts at symptom-based treatments. The objectives of this study are to identify in a younger age group with AN whether persistent illness can be identified early and prevented. METHODS An extensive literature review of such studies published in Pubmed was conducted. RESULTS This review revealed that these studies have generally been conducted in adult patients who have been chronically ill over many years. DISCUSSION Despite that fact that there is little published evidence on severe and persistent illness in a younger rage group, there are important clinical questions to consider in such a group of AN individuals. This commentary attempts to answer these questions, often in the absence of research evidence. These questions include whether it is possible to identify those who will go on to develop a severe, enduring course; whether early intervention can prevent the development of a such a course; and whether a focus on quality of life rather symptom alleviation is appropriate for a younger age group of unremitted sufferers. In the absence of research that that clearly informs these questions, the authors are left to recommend answers to these question based on a case by case interrogation of relevant factors, including the presence of the risk architecture to which AN has been strongly linked, the age of the patient, the wishes of the family and importantly, the opinions of expert bioethicists and clinicians sufficiently knowledgeable about the psychopathology, natural history, and treatment of AN to be able to render an informed decision.
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Affiliation(s)
- Allan S Kaplan
- Center for Addiction and Mental Health, Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Michael Strober
- Department of Psychiatry and Biobehavioral Sciences, Jane and Terry Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California
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22
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Uniacke B, Wang Y, Biezonski D, Sussman T, Lee S, Posner J, Steinglass J. Resting-state connectivity within and across neural circuits in anorexia nervosa. Brain Behav 2019; 9:e01205. [PMID: 30590873 PMCID: PMC6373651 DOI: 10.1002/brb3.1205] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Obsessional thoughts and ritualized eating behaviors are characteristic of Anorexia Nervosa (AN), leading to the common suggestion that the illness shares neurobiology with obsessive-compulsive disorder (OCD). Resting-state functional connectivity MRI (rs-fcMRI) is a measure of functional neural architecture. This longitudinal study examined functional connectivity in AN within the limbic cortico-striato-thalamo-cortical (CSTC) loop, as well as in the salience network, the default mode network, and the executive control network (components of the triple network model of psychopathology). METHODS Resting-state functional connectivity MRI scans were collected in unmedicated female inpatients with AN (n = 25) and healthy controls (HC; n = 24). Individuals with AN were scanned before and after weight restoration and followed for one month after hospital discharge. HC were scanned twice over the same timeframe. RESULTS Using a seed-based correlation approach, individuals with AN had increased connectivity within the limbic CSTC loop when underweight, only. There was no significant association between limbic CSTC connectivity and obsessive-compulsive symptoms or prognosis. Exploratory analyses of functional network connectivity within the triple network model showed reduced connectivity between the salience network and left executive control network among AN relative to HC. These abnormalities persisted following weight restoration. CONCLUSIONS The CSTC findings suggest that the neural underpinnings of obsessive-compulsive symptoms may differ from those of OCD. The inter-network abnormalities warrant examination in relation to illness-specific behaviors, namely abnormal eating behavior. This longitudinal study highlights the complexity of the neural underpinnings of AN.
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Affiliation(s)
- Blair Uniacke
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.,Department of Psychiatry, New York State Psychiatric Institute, New York, New York
| | - Yun Wang
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.,Department of Psychiatry, New York State Psychiatric Institute, New York, New York
| | | | - Tamara Sussman
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.,Department of Psychiatry, New York State Psychiatric Institute, New York, New York
| | - Seonjoo Lee
- Division of Mental Health Data Science, New York State Psychiatric Institute, New York, New York.,Department of Biostatistics, Columbia University Irving Medical Center, New York, New York
| | - Jonathan Posner
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.,Department of Psychiatry, New York State Psychiatric Institute, New York, New York
| | - Joanna Steinglass
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.,Department of Psychiatry, New York State Psychiatric Institute, New York, New York
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23
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Plana MT, Torres T, Rodríguez N, Boloc D, Gassó P, Moreno E, Lafuente A, Castro-Fornieles J, Mas S, Lazaro L. Genetic variability in the serotoninergic system and age of onset in anorexia nervosa and obsessive-compulsive disorder. Psychiatry Res 2019; 271:554-558. [PMID: 30554102 DOI: 10.1016/j.psychres.2018.12.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/05/2018] [Accepted: 12/03/2018] [Indexed: 12/18/2022]
Abstract
The age of onset of some psychiatric disorders may have etiopathogenic and clinical effects and may influence outcome. Following on from previous work by our group where we showed that early onset anorexia nervosa (AN) and obsessive-compulsive disorder (OCD) shared a common genetic background, the aim of the present study is to assess genetic pleiotropy related to the serotonergic system (SLC6A4, 5HTR2A, 5HTR2C, TPH2, SLC18A1), in a common phenotype such as very-early age of onset. One hundred and sixteen adolescents diagnosed with AN and 74 adolescents diagnosed with OCD participated in the present study. We confirmed the existence of a genetic overlap between OCD and AN. Specifically, we described genetic pleiotropy for age at onset across these disorders, associating two SNPs (rs6311, rs4942587) of the HTR2A with the very-early onset phenotype.
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Affiliation(s)
- Maria Teresa Plana
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clinic de Barcelona, C/ Villarroel 170, E-08036 Barcelona, Spain.
| | - Teresa Torres
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Natalia Rodríguez
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain
| | - Daniel Boloc
- Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Patricia Gassó
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain; The August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Elena Moreno
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clinic de Barcelona, C/ Villarroel 170, E-08036 Barcelona, Spain
| | - Amalia Lafuente
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain; The August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Carlos III Health Institute, Spain
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clinic de Barcelona, C/ Villarroel 170, E-08036 Barcelona, Spain; Department of Medicine, University of Barcelona, Barcelona, Spain; The August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Carlos III Health Institute, Spain
| | - Sergi Mas
- Department of Clinical Foundations, Pharmacology Unit, University of Barcelona, Barcelona, Spain; The August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Carlos III Health Institute, Spain
| | - Luisa Lazaro
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clinic de Barcelona, C/ Villarroel 170, E-08036 Barcelona, Spain; Department of Medicine, University of Barcelona, Barcelona, Spain; The August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Carlos III Health Institute, Spain.
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24
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Murray SB, Strober M, Craske MG, Griffiths S, Levinson CA, Strigo IA. Fear as a translational mechanism in the psychopathology of anorexia nervosa. Neurosci Biobehav Rev 2018; 95:383-395. [DOI: 10.1016/j.neubiorev.2018.10.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 10/11/2018] [Accepted: 10/22/2018] [Indexed: 12/30/2022]
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25
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Armstrong JL, Ronzitti S, Hoff RA, Potenza MN. Gender moderates the relationship between stressful life events and psychopathology: Findings from a national study. J Psychiatr Res 2018; 107:34-41. [PMID: 30316084 DOI: 10.1016/j.jpsychires.2018.09.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 08/21/2018] [Accepted: 09/19/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND While data suggest a strong relationship between trauma exposure and psychopathology, less research has investigated relationships between psychopathology and stressful life events more broadly, and how these relationships may differ by gender. AIM To examine strengths of associations between stressful life events and psychiatric disorders (i.e., past-year Axis I and lifetime Axis II, per DSM-IV) and how they may differ by gender. METHODS Data from Wave 1 of the National Epidemiological Survey on Alcohol and Related Conditions (NESARC; n = 43,093) were analyzed using chi-square tests and multinomial logistic regression analyses. Participants were categorized according to occurrence of stressful life events (low, moderate, and high). RESULTS Women as compared to men were more likely to report moderate (p < 0.0001) or high occurrence stressful life events (p < 0.0001). Increasing experiences of stressful life events were associated with increasing odds of most past-year Axis I and lifetime Axis II disorders in both gender groups, with the largest odds typically observed in association with more frequent stressful life events. Associations between stressful life events and multiple psychiatric disorders were stronger in women compared to men. CONCLUSIONS Stressful life events are associated with multiple Axis I and Axis II psychiatric disorders in both men and women. This relationship is moderated by gender. Screening female patients who endorse significant stressors for mood, anxiety, and substance-use problems might be particularly important. The stronger associations in women between stressful life events and personality disorders in particular warrant further investigation.
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Affiliation(s)
- Jessica L Armstrong
- Veterans' Administration, Connecticut Healthcare System, CT, USA; Department of Psychiatry, Yale University School of Medicine, CT, USA
| | - Silvia Ronzitti
- Veterans' Administration, Connecticut Healthcare System, CT, USA; Department of Psychiatry, Yale University School of Medicine, CT, USA; Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Rani A Hoff
- Veterans' Administration, Connecticut Healthcare System, CT, USA; Department of Psychiatry, Yale University School of Medicine, CT, USA; Northeast Program Evaluation Center; Director, Evaluation Division, National Center for PTSD, CT, USA
| | - Marc N Potenza
- Department of Psychiatry, Yale University School of Medicine, CT, USA; Department of Neuroscience, Yale University School of Medicine, CT, USA; Child Study Center, Yale University School of Medicine, CT, USA; Connecticut Mental Health Center, CT, USA.
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26
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Frank GKW, DeGuzman MC, Shott ME, Laudenslager ML, Rossi B, Pryor T. Association of Brain Reward Learning Response With Harm Avoidance, Weight Gain, and Hypothalamic Effective Connectivity in Adolescent Anorexia Nervosa. JAMA Psychiatry 2018; 75:1071-1080. [PMID: 30027213 PMCID: PMC6233809 DOI: 10.1001/jamapsychiatry.2018.2151] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
IMPORTANCE Anorexia nervosa (AN) is associated with adolescent onset, severe low body weight, and high mortality as well as high harm avoidance. The brain reward system could have an important role in the perplexing drive for thinness and food avoidance in AN. OBJECTIVE To test whether brain reward learning response to taste in adolescent AN is altered and associated with treatment response, striatal-hypothalamic connectivity, and elevated harm avoidance. DESIGN, SETTING, AND PARTICIPANTS In this cross-sectional multimodal brain imaging study, adolescents and young adults with AN were matched with healthy controls at a university brain imaging facility and eating disorder treatment program. During a sucrose taste classical conditioning paradigm, violations of learned associations between conditioned visual and unconditioned taste stimuli evoked the dopamine-related prediction error (PE). Dynamic effective connectivity during sweet taste receipt was studied to investigate hierarchical brain activation across the brain network that regulates eating. The study was conducted from July 2012 to May 2017, and data were analyzed from June 2017 to December 2017. MAIN OUTCOMES AND MEASURES Prediction error brain reward response across the insula, caudate, and orbitofrontal cortex; dynamic effective connectivity between hypothalamus and ventral striatum; and treatment weight gain, harm avoidance scores, and salivary cortisol levels and their correlations with PE brain response. RESULTS Of 56 female participants with AN included in the study, the mean (SD) age was 16.6 (2.5) years, and the mean (SD) body mass index (BMI; calculated as weight in kilograms divided by height in meters squared) was 15.9 (0.9); of 52 matched female controls, the mean (SD) age was 16.0 (2.8) years, and the mean (SD) BMI was 20.9 (2.1). Prediction error response was elevated in participants with AN in the caudate head, nucleus accumbens, and insula (multivariate analysis of covariance: Wilks λ, 0.707; P = .02; partial η2 = 0.296), which correlated negatively with sucrose taste pleasantness. Bilateral AN orbitofrontal gyrus rectus PE response was positively correlated with harm avoidance (right ρ, 0.317; 95% CI, 0.091 to 0.539; P < .02; left ρ, 0.336; 95% CI, 0.112 to 0.550; P < .01) but negatively correlated with treatment BMI change (right ρ, -0.282; 95% CI, -0.534 to -0.014; P < .04; left ρ, -0.268; 95% CI, -0.509 to -0.018; P < .045). Participants with AN showed effective connectivity from ventral striatum to hypothalamus, and connectivity strength was positively correlated with insula and orbitofrontal PE response. Right frontal cortex PE response was associated with cortisol, which correlated with body dissatisfaction. CONCLUSIONS AND RELEVANCE These results further support elevated PE signal in AN and suggest a link between PE and elevated harm avoidance, brain connectivity, and weight gain in AN. Prediction error may have a central role in adolescent AN in driving anxiety and ventral striatal-hypothalamus circuit-controlled food avoidance.
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Affiliation(s)
- Guido K. W. Frank
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora,Neuroscience Program, University of Colorado Anschutz Medical Campus, Aurora
| | - Marisa C. DeGuzman
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora,Neuroscience Program, University of Colorado Anschutz Medical Campus, Aurora
| | - Megan E. Shott
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora
| | - Mark L. Laudenslager
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora
| | - Brogan Rossi
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora
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27
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Khalsa SS, Hassanpour MS, Strober M, Craske MG, Arevian AC, Feusner JD. Interoceptive Anxiety and Body Representation in Anorexia Nervosa. Front Psychiatry 2018; 9:444. [PMID: 30298026 PMCID: PMC6160545 DOI: 10.3389/fpsyt.2018.00444] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/28/2018] [Indexed: 12/31/2022] Open
Abstract
Individuals with anorexia nervosa (AN) typically display anxious traits prior to the onset of food avoidance and weight loss that characterize the disorder. Meal associated anxiety is an especially common clinical feature in these patients, and heightened sensitivity to sympathetically mediated interoceptive sensations has also been observed. However, it remains unclear how heightened interoceptive sensitivity relates to experiences of anxiety before and after meals. To investigate this relationship, we experimentally induced anxiety and panic symptoms with isoproterenol, a peripheral sympathetic agonist similar to adrenaline, across several different conditions: during panic provocation, during anticipation of a 1,000 Calorie meal, and after meal consumption. Fifteen AN and 15 age- and sex-matched healthy comparisons received bolus infusions of isoproterenol and saline in a double-blinded, randomized design. Participants rated anxiety symptoms after each infusion, completed panic rating scales, and traced the location of perceived palpitations on a manikin to index interoceptive "body map" representation. The AN group reported significantly elevated anxiety relative to healthy comparisons during infusions before and after the meal, but surprisingly, not during panic provocation. These symptoms were accompanied by geographical differences in patterns of perceived heartbeat sensations across each condition. In particular, the AN group localized heartbeat sensations disproportionately to the chest during meal related saline infusions, when no cardiorespiratory modulation actually occurred. The AN group also showed a trend toward higher panic attack rates during the meal anticipation period. Correcting for anxiety levels reported during saline infusions abolished group differences in anxiety change across all conditions, suggesting a significant contribution of anxious traits in AN. The observation of meal related "visceral illusions" provides further evidence that AN is associated with abnormal interoceptive representation of the heartbeat and suggests that meal consumption, particularly when anticipated, preferentially alters the processing of interoception related signals in AN.
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Affiliation(s)
- Sahib S. Khalsa
- Laureate Institute for Brain Research, Tulsa, OK, United States
- Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, United States
| | | | - Michael Strober
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Michelle G. Craske
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Psychology, University of California, Los Angeles, Los Angeles, CA, United States
| | - Armen C. Arevian
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Jamie D. Feusner
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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28
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Rangaprakash D, Bohon C, Lawrence KE, Moody T, Morfini F, Khalsa SS, Strober M, Feusner JD. Aberrant Dynamic Connectivity for Fear Processing in Anorexia Nervosa and Body Dysmorphic Disorder. Front Psychiatry 2018; 9:273. [PMID: 29997532 PMCID: PMC6028703 DOI: 10.3389/fpsyt.2018.00273] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/05/2018] [Indexed: 01/20/2023] Open
Abstract
Anorexia nervosa (AN) and body dysmorphic disorder (BDD) share distorted perceptions of appearance with extreme negative emotion, yet the neural phenotypes of emotion processing remain underexplored in them, and they have never been directly compared. We sought to determine if shared and disorder-specific fronto-limbic connectivity patterns characterize these disorders. FMRI data was obtained from three unmedicated groups: BDD (n = 32), weight-restored AN (n = 25), and healthy controls (HC; n = 37), while they viewed fearful faces and rated their own degree of fearfulness in response. We performed dynamic effective connectivity modeling with medial prefrontal cortex (mPFC), rostral anterior cingulate cortex (rACC), and amygdala as regions-of-interest (ROI), and assessed associations between connectivity and clinical variables. HCs exhibited significant within-group bidirectional mPFC-amygdala connectivity, which increased across the blocks, whereas BDD participants exhibited only significant mPFC-to-amygdala connectivity (P < 0.05, family-wise error corrected). In contrast, participants with AN lacked significant prefrontal-amygdala connectivity in either direction. AN showed significantly weaker mPFC-to-amygdala connectivity compared to HCs (P = 0.0015) and BDD (P = 0.0050). The mPFC-to-amygdala connectivity was associated with greater subjective fear ratings (R2 = 0.11, P = 0.0016), eating disorder symptoms (R2 = 0.33, P = 0.0029), and anxiety (R2 = 0.29, P = 0.0055) intensity scores. Our findings, which suggest a complex nosological relationship, have implications for understanding emotion regulation circuitry in these related psychiatric disorders, and may have relevance for current and novel therapeutic approaches.
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Affiliation(s)
- D. Rangaprakash
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Cara Bohon
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
| | - Katherine E. Lawrence
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Teena Moody
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Francesca Morfini
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Sahib S. Khalsa
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
- Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, United States
- Laureate Institute for Brain Research, University of Tulsa, Tulsa, OK, United States
| | - Michael Strober
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Jamie D. Feusner
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
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29
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Personality and eating and weight disorders: an open research challenge. Eat Weight Disord 2018; 23:143-147. [PMID: 29177759 DOI: 10.1007/s40519-017-0463-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 11/08/2017] [Indexed: 10/18/2022] Open
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30
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Zerbe KJ. The Protective Skin of the Analyst’s Case Formulation: Commentary on Paper by Tom Wooldridge. PSYCHOANALYTIC DIALOGUES 2018. [DOI: 10.1080/10481885.2018.1432952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Lee DJ, Elias GJB, Lozano AM. Neuromodulation for the treatment of eating disorders and obesity. Ther Adv Psychopharmacol 2018; 8:73-92. [PMID: 29399320 PMCID: PMC5788100 DOI: 10.1177/2045125317743435] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/24/2017] [Indexed: 12/25/2022] Open
Abstract
Eating disorders and obesity adversely affect individuals both medically and psychologically, leading to reduced life expectancy and poor quality of life. While there exist a number of treatments for anorexia, morbid obesity and bulimia, many patients do not respond favorably to current behavioral, medical or bariatric surgical management. Neuromodulation has been postulated as a potential treatment for eating disorders and obesity. In particular, deep brain stimulation and transcranial non-invasive brain stimulation have been studied for these indications across a variety of brain targets. Here, we review the neurobiology behind eating and eating disorders as well as the current status of preclinical and clinical neuromodulation trials for eating disorders and obesity.
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Affiliation(s)
- Darrin J Lee
- Division of Neurosurgery, Toronto Western Hospital, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Gavin J B Elias
- Division of Neurosurgery, Toronto Western Hospital, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Andres M Lozano
- Division of Neurosurgery, Toronto Western Hospital, Department of Surgery, University of Toronto, 399 Bathurst St., West Wing 4-431, Toronto, ON M5T 2S8, Canada
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32
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Lloyd EC, Haase AM, Verplanken B. Anxiety and the development and maintenance of anorexia nervosa: protocol for a systematic review. Syst Rev 2018; 7:14. [PMID: 29361975 PMCID: PMC5782391 DOI: 10.1186/s13643-018-0685-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/15/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Several aetiological models of anorexia nervosa (AN) hold non-eating/weight-gain-related anxiety as a factor relevant to the onset and maintenance of the disorder. Longitudinal studies that allow assessment of this hypothesis have been conducted; however, the evidence has not yet been aggregated in a systematic manner. The proposed study will systematically review articles describing prospective investigations of the relationship between anxiety and AN development or maintenance, with the aim of providing a balanced summary of current understanding and identifying areas for further research. METHODS/DESIGN Electronic databases will be searched for articles investigating the longitudinal influence of non-eating/weight-gain-related anxiety (anxiety disorders and trait anxiety) on the development/maintenance of AN. References of eligible articles will be searched to ensure the identification of all relevant studies. Two independent reviewers will complete the title and abstract, and full-text, screening, with a third independent reviewer resolving any conflicts at each stage. A systematic review will be completed, and the quality of the included studies, as well as the strength of the body of evidence generated, will be assessed and reported. DISCUSSION Although there are limitations to the present review, understanding the current evidence for the role of non-eating/weight-gain-related anxiety in AN can direct future research that may ensure accurate aetiological models of AN and effective treatments. SYSTEMATIC REVIEW REGISTRATION The study is registered on PROSPERO under the reference number CRD42017069644.
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Affiliation(s)
- E Caitlin Lloyd
- Centre for Exercise, Nutrition and Health Sciences, University of Bristol, Bristol, UK.
| | - Anne M Haase
- Centre for Exercise, Nutrition and Health Sciences, University of Bristol, Bristol, UK
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Leppanen J, Ng KW, Kim YR, Tchanturia K, Treasure J. Meta-analytic review of the effects of a single dose of intranasal oxytocin on threat processing in humans. J Affect Disord 2018; 225:167-179. [PMID: 28837950 DOI: 10.1016/j.jad.2017.08.041] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/23/2017] [Accepted: 08/14/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Heightened threat sensitivity is a transdiagnostic feature in several psychiatric disorders. The neuropeptide oxytocin has been shown to reduce fear related behaviours and facilitated fear extinction in animals. These findings have led to increasing interest to explore the effects of intranasal oxytocin on threat processing in humans. METHODS The review included 26 studies (N = 1173), nine of which included clinical populations (N = 234). The clinical groups included were people with borderline personality disorder (BPD), anorexia nervosa, bulimia nervosa, depression, anxiety, and alcohol dependence disorder. We examined the effects of a single dose of intranasal oxytocin on startle response, attentional responses, and behavioural responses to threat. RESULTS A single dose of intranasal oxytocin significantly increased the physiological startle response to threat in healthy people with a small effect size. However, oxytocin did not have significant effects on attentional bias towards social or disorder-specific threat, fixation towards threatening stimuli among healthy or clinical populations, or on threat related behavioural approach or avoidance responses. LIMITATIONS No studies investigated the effects of oxytocin on the startle response to threat among clinical populations. Additionally, only one of the reviewed studies had sufficient power to detect at least a moderate effect of oxytocin according to our criterion. DISCUSSION The synthesis of literature suggest that oxytocin may influence the salience of threatening stimuli among healthy individuals, increasing the startle response to threat. It would be of interest to investigate the effects of oxytocin on the startle response to threat among clinical populations.
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Affiliation(s)
- Jenni Leppanen
- King's College London, Institute of Psychiatry, Psychology, and Neuroscience, Department of Psychological Medicine, London, United Kingdom.
| | - Kah Wee Ng
- Singapore General Hospital, 20 College Road, Academia, 169865 Singapore, Singapore
| | - Youl-Ri Kim
- Department of Psychiatry, Seoul Paik Hospital, Inje University, Seoul, South Korea
| | - Kate Tchanturia
- King's College London, Institute of Psychiatry, Psychology, and Neuroscience, Department of Psychological Medicine, London, United Kingdom; Department of Psychology, Illia State University, Tbilisi, Georgia
| | - Janet Treasure
- King's College London, Institute of Psychiatry, Psychology, and Neuroscience, Department of Psychological Medicine, London, United Kingdom
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Moody T, Shen VW, Hutcheson NL, Henretty JR, Sheen CL, Strober M, Feusner JD. Appearance evaluation of others' faces and bodies in anorexia nervosa and body dysmorphic disorder. Int J Eat Disord 2017; 50:127-138. [PMID: 27566987 PMCID: PMC5345932 DOI: 10.1002/eat.22604] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 07/22/2016] [Accepted: 07/24/2016] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Individuals with anorexia nervosa (AN) and body dysmorphic disorder (BDD) exhibit distorted perception and negative evaluations of their own appearance; however, little is known about how they perceive others' appearance, and whether or not the conditions share perceptual distortions. METHOD Thirty participants with BDD, 22 with AN, now weight-restored, and 39 healthy comparison participants (HC) rated photographs of others' faces and bodies on attractiveness, how overweight or underweight they were, and how much photographs triggered thoughts of their own appearance. We compared responses among groups by stimulus type and by level-of-detail (spatial frequency). RESULTS Compared to HCs, AN and BDD had lower attractiveness ratings for others' bodies and faces for high-detail and low-detail images, rated bodies as more overweight, and were more triggered to think of their own appearance for faces and bodies. In AN, symptom severity was associated with greater triggering of thoughts of own appearance and higher endorsement of overweight ratings for bodies. In BDD, symptom severity was associated with greater triggering of thoughts of own appearance for bodies and higher overweight ratings for low-detail images. BDD was more triggered to think of own facial appearance than AN. DISCUSSION AN and BDD show similar behavioral phenotypes of negative appearance evaluations for others' faces and bodies, and have thoughts of their own appearance triggered even for images outside of their primary appearance concerns, suggesting a more complex cross-disorder body-image phenotype than previously assumed. Future treatment strategies may benefit from addressing how these individuals evaluate others in addition to themselves. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:127-138).
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Affiliation(s)
- Teena Moody
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
| | - Vivian W. Shen
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
| | - Nathan L. Hutcheson
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
| | | | - Courtney L Sheen
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
| | - Michael Strober
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
| | - Jamie D. Feusner
- Department of Psychiatry and Biobehavioral Sciences, The University of California Los Angeles, Los Angeles, CA
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Rost S, Kappel V, Salbach H, Schneider N, Pfeiffer E, Lehmkuhl U, Winter S, Sarrar L. Psychiatric Disorders and Personality Styles in Mothers of Female Adolescent Patients with Eating Disorders. ZEITSCHRIFT FUR KINDER-UND JUGENDPSYCHIATRIE UND PSYCHOTHERAPIE 2016; 45:361-369. [PMID: 27855559 DOI: 10.1024/1422-4917/a000495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To provide further insight into the presently poorly understood role of familial psychopathology in the development of eating disorders (ED). METHOD The present study assesses psychiatric and personality disorders listed on Axis I and II of the DSM-IV in 27 mothers of adolescent patients with anorexia (AN mothers) and 14 bulimia nervosa (BN mothers) as well as 22 mentally healthy girls (CG mothers) on a categorical level. Furthermore, we conducted a dimensional diagnostic regarding personality styles and personality traits. RESULTS AN and BN mothers showed increased rates of Axis I disorders, especially affective, substance use, and anxiety disorders. Differences on Axis II did not reach statistical significance. However, BN mothers showed higher occurrences of paranoid, negativistic, and schizotypal personality styles compared to the other groups. BN mothers further showed higher occurrences than CG mothers of the personality traits excitability, aggressiveness, physical complaints, openness, and emotionality. AN mothers differed significantly from CG mothers on the scale demands. CONCLUSIONS Increased occurrence of psychopathology on both categorical and dimensional levels in mothers of patients with AN and BN supports the assumption of a familial accumulation of psychopathology in ED. Longitudinal studies and genetic analyses should clarify a possible cause-effect relationship and interactions between familial dynamics and adolescent ED.
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Affiliation(s)
- Silke Rost
- 1 Institute for Health and Behaviour, University of Luxembourg
| | - Viola Kappel
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Harriet Salbach
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Nora Schneider
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Ernst Pfeiffer
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Ulrike Lehmkuhl
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Sibylle Winter
- 2 Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Charité-University Medicine Berlin, Germany
| | - Lea Sarrar
- 3 Department of Audiology and Phoniatrics, Charité-University Medicine Berlin, Germany
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Madra M, Zeltser LM. BDNF-Val66Met variant and adolescent stress interact to promote susceptibility to anorexic behavior in mice. Transl Psychiatry 2016; 6:e776. [PMID: 27045846 PMCID: PMC4872394 DOI: 10.1038/tp.2016.35] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/02/2016] [Accepted: 02/11/2016] [Indexed: 12/16/2022] Open
Abstract
There is an urgent need to identify therapeutic targets for anorexia nervosa (AN) because current medications do not impact eating behaviors that drive AN's high mortality rate. A major obstacle to developing new treatments is the lack of animal models that recapitulate the pattern of disease onset typically observed in human populations. Here we describe a translational mouse model to study interactions between genetic, psychological and biological risk factors that promote anorexic behavior. We combined several factors that are consistently associated with increased risk of AN-adolescent females, genetic predisposition to anxiety imposed by the BDNF-Val66Met gene variant, social isolation stress and caloric restriction (CR). Approximately 40% of the mice with all of these risk factors will exhibit severe self-imposed dietary restriction, sometimes to the point of death. We systematically varied the risk factors outlined above to explore how they interact to influence anorexic behavior. We found that the Val66Met genotype markedly increases the likelihood and severity of abnormal feeding behavior triggered by CR, but only when CR is imposed in the peri-pubertal period. Incidence of anorexic behavior in our model is dependent on juvenile exposure to social stress and can be extinguished by adolescent handling, but is discordant from anxiety-like behavior. Thus, this study characterized gene × environment interactions during adolescence that could be the underlying driver of abnormal eating behavior in certain AN patients, and represents a promising system to identify possible targets for therapeutic intervention.
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Affiliation(s)
- M Madra
- Institute of Human Nutrition, Columbia University, New York, NY, USA
| | - L M Zeltser
- Naomi Berrie Diabetes Center, Columbia University, New York, NY, USA
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Naomi Berrie Diabetes Center, Columbia University, 1150 Saint Nicholas Avenue, New York, NY 10032, USA. E-mail:
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Khalsa SS, Lapidus RC. Can Interoception Improve the Pragmatic Search for Biomarkers in Psychiatry? Front Psychiatry 2016; 7:121. [PMID: 27504098 PMCID: PMC4958623 DOI: 10.3389/fpsyt.2016.00121] [Citation(s) in RCA: 185] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 06/21/2016] [Indexed: 01/04/2023] Open
Abstract
Disrupted interoception is a prominent feature of the diagnostic classification of several psychiatric disorders. However, progress in understanding the interoceptive basis of these disorders has been incremental, and the application of interoception in clinical treatment is currently limited to panic disorder. To examine the degree to which the scientific community has recognized interoception as a construct of interest, we identified and individually screened all articles published in the English language on interoception and associated root terms in Pubmed, Psychinfo, and ISI Web of Knowledge. This search revealed that interoception is a multifaceted process that is being increasingly studied within the fields of psychiatry, psychology, neuroscience, and biomedical science. To illustrate the multifaceted nature of interoception, we provide a focused review of one of the most commonly studied interoceptive channels, the cardiovascular system, and give a detailed comparison of the most popular methods used to study cardiac interoception. We subsequently review evidence of interoceptive dysfunction in panic disorder, depression, somatic symptom disorders, anorexia nervosa, and bulimia nervosa. For each disorder, we suggest how interoceptive predictions constructed by the brain may erroneously bias individuals to express key symptoms and behaviors, and outline questions that are suitable for the development of neuroscience-based mental health interventions. We conclude that interoception represents a viable avenue for clinical and translational research in psychiatry, with a well-established conceptual framework, a neural basis, measurable biomarkers, interdisciplinary appeal, and transdiagnostic targets for understanding and improving mental health outcomes.
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Affiliation(s)
- Sahib S Khalsa
- Laureate Institute for Brain Research (LIBR), Tulsa, OK, USA; Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, USA
| | - Rachel C Lapidus
- Laureate Institute for Brain Research (LIBR), Tulsa, OK, USA; Department of Psychology, University of Tulsa, Tulsa, OK, USA
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Blomquist KK, Grilo CM. Family histories of anxiety in overweight men and women with binge eating disorder: A preliminary investigation. Compr Psychiatry 2015; 62:161-9. [PMID: 26343481 PMCID: PMC4583821 DOI: 10.1016/j.comppsych.2015.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 07/06/2015] [Accepted: 07/14/2015] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE A preliminary examination of the significance of family histories of anxiety in the expression of binge eating disorder (BED) and associated functioning. METHODS Participants were 166 overweight patients with BED assessed using diagnostic interviews. Participants were administered a structured psychiatric history interview about their first-degree relatives (parents, siblings, children) (N=897) to determine lifetime diagnoses of DSM-IV anxiety disorders and completed a battery of questionnaires assessing current and historical eating and weight variables and associated psychological functioning (depression). RESULTS BED patients with a family history of anxiety disorder were significantly more likely than BED patients without a family history of anxiety disorder to have lifetime diagnoses of anxiety disorders and mood disorders but not substance use disorders. A family history of anxiety was not significantly associated with timing or sequencing of age at onset of anxiety disorder, binge eating, dieting, or obesity, or with variability in current levels of binge eating, eating disorder psychopathology, or psychological functioning. CONCLUSIONS Although replication with direct interview method is needed, our preliminary findings suggest that a family history of anxiety confers greater risk for comorbid anxiety and mood disorders but is largely unrelated to the development of binge eating, dieting, or obesity and unrelated to variability in eating disorder psychopathology or psychological functioning in overweight patients with BED.
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Affiliation(s)
| | - Carlos M Grilo
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States; Department of Psychology, Yale University, New Haven, CT, United States
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Lloyd S, Schmidt U, Simic M, Tchanturia K. Self-reported and performance based perfectionism in mothers of individuals with Anorexia Nervosa: a pilot study. NEUROPSYCHIATRIE : KLINIK, DIAGNOSTIK, THERAPIE UND REHABILITATION : ORGAN DER GESELLSCHAFT ÖSTERREICHISCHER NERVENÄRZTE UND PSYCHIATER 2015; 29:192-9. [PMID: 26399933 DOI: 10.1007/s40211-015-0161-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 09/05/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Perfectionism is implicated in the development and maintenance of Anorexia Nervosa and there is some evidence that perfectionism may be elevated in family members. However to date there are no studies investigating behavioural aspects of perfectionism in unaffected mothers. METHODS Forty-one participants took part in this pilot study: 21 unaffected mothers of individuals with Anorexia Nervosa and 20 healthy control mothers. Participants completed two performance based tasks assessing perfectionism-a text replication task and a bead sorting task-along with self-report measures of perfectionism. RESULTS No group differences were found between unaffected AN mothers and HC mothers on performance measures of perfectionism. DISCUSSION The findings are discussed in relation to existing studies and clinical implications explored.
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Affiliation(s)
- Samantha Lloyd
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Ulrike Schmidt
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,Eating Disorders National Service, South London and Maudsley NHS Foundation Trust, London, UK
| | - Mima Simic
- Eating Disorders National Service, South London and Maudsley NHS Foundation Trust, London, UK
| | - Kate Tchanturia
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. .,Eating Disorders National Service, South London and Maudsley NHS Foundation Trust, London, UK. .,Illia State University, Tbilisi, Georgia.
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Meier SM, Bulik CM, Thornton LM, Mattheisen M, Mortensen PB, Petersen L. Diagnosed Anxiety Disorders and the Risk of Subsequent Anorexia Nervosa: A Danish Population Register Study. EUROPEAN EATING DISORDERS REVIEW 2015; 23:524-30. [DOI: 10.1002/erv.2402] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/17/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Sandra M. Meier
- National Centre for Register-based Research; Aarhus University; Aarhus Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH; Denmark
| | - Cynthia M. Bulik
- Department of Psychiatry; University of North Carolina; Chapel Hill NC USA
- Department of Nutrition; University of North Carolina; Chapel Hill NC USA
- Karolinska Institute; Department of Medical Epidemiology and Biostatistics; Stockholm Sweden
| | - Laura M. Thornton
- Department of Psychiatry; University of North Carolina; Chapel Hill NC USA
| | - Manuel Mattheisen
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH; Denmark
- Department of Biomedicine and Center for Integrated Sequencing (iSEQ); Aarhus University; Aarhus Denmark
| | - Preben B. Mortensen
- National Centre for Register-based Research; Aarhus University; Aarhus Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH; Denmark
| | - Liselotte Petersen
- National Centre for Register-based Research; Aarhus University; Aarhus Denmark
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH; Denmark
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Bould H, Koupil I, Dalman C, DeStavola B, Lewis G, Magnusson C. Parental mental illness and eating disorders in offspring. Int J Eat Disord 2015; 48:383-91. [PMID: 24965548 DOI: 10.1002/eat.22325] [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: 08/28/2013] [Revised: 05/27/2014] [Accepted: 06/14/2014] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To investigate which parental mental illnesses are associated with eating disorders in their offspring. METHOD We used data from a record-linkage cohort study of 158,679 children aged 12-24 years at the end of follow-up, resident in Stockholm County from 2001 to 2007, to investigate whether different parental mental illnesses are risk factors for eating disorders in their offspring. The outcome measure was diagnosis of any eating disorder, either from an ICD or DSM-IV code, or inferred from an appointment at a specialist eating disorder clinic. RESULTS Mental illness in parents is a risk factor for eating disorders in female offspring (Adjusted Hazard Ratio (AHR) 1.57 (95% CI 1.42, 1.92), p < 0.0001). Risk of eating disorders is increased if there is a parental diagnosis of bipolar affective disorder (AHR 2.28 (95% CI 1.39, 3.72), p = 0.004), personality disorder (AHR 1.57 (95% CI 1.01, 2.44), p = 0.043) or anxiety/depression (AHR 1.57 (95% CI 1.32, 1.86), p < 0.0001). There is a lack of statistical evidence for an association with parental schizophrenia (AHR 1.41 (95% CI 0.96, 2.07), p = 0.08), and somatoform disorder (AHR 1.25 (95% CI 0.74, 2.13), p = 0.40). There is no support for a relationship between parental substance misuse and eating disorders in children (AHR 1.08 (95% CI 0.82, 1.43), p = 0.57). DISCUSSION Parental mental illness, specifically parental anxiety, depression, bipolar affective disorder, and personality disorders, are risk factors for eating disorders in their offspring.
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Affiliation(s)
- Helen Bould
- Centre for Academic Mental Health, School of Social and Community Medicine, University of Bristol, Bristol, UK
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Lock J, La Via MC. Practice parameter for the assessment and treatment of children and adolescents with eating disorders. J Am Acad Child Adolesc Psychiatry 2015; 54:412-25. [PMID: 25901778 DOI: 10.1016/j.jaac.2015.01.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 01/31/2015] [Indexed: 10/23/2022]
Abstract
This Practice Parameter reviews evidence-based practices for the evaluation and treatment of eating disorders in children and adolescents. Where empirical support is limited, clinical consensus opinion is used to supplement systematic data review. The Parameter focuses on the phenomenology of eating disorders, comorbidity of eating disorders with other psychiatric and medical disorders, and treatment in children and adolescents. Because the database related to eating disorders in younger patients is limited, relevant literature drawn from adult studies is included in the discussion.
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Rosenvinge JH, Pettersen G. Epidemiology of eating disorders part III: social epidemiology and case definitions revisited. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/21662630.2015.1022197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lock J. An Update on Evidence-Based Psychosocial Treatments for Eating Disorders in Children and Adolescents. JOURNAL OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY 2015; 44:707-21. [PMID: 25580937 DOI: 10.1080/15374416.2014.971458] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Eating disorders are relatively common and serious disorders in adolescents. However, there are few controlled psychosocial intervention studies with this younger population. This review updates a previous Journal of Clinical Child and Adolescent Psychology review published in 2008. The recommendations in this review were developed after searching the literature including PubMed/Medline and employing the relevant medical subject headings. In addition, the bibliographies of book chapters and treatment guideline articles were reviewed; last, colleagues were asked for suggested additional source materials. Psychosocial treatments examined include family therapy, individual therapy, cognitive behavioral therapy, interpersonal psychotherapy, cognitive training, and dialectical behavior therapy. Using the most recent Journal of Clinical Child and Adolescent Psychology methodological review criteria, family treatment-behavior (FT-B) is the only well-established treatment for adolescents with anorexia nervosa. Family treatment-systemic and insight oriented individual psychotherapy are probably efficacious treatments for adolescents with anorexia nervosa. There are no well-established treatments for adolescents with bulimia nervosa, binge eating disorder, or avoidant restrictive food intake disorder. Possibly efficacious psychosocial treatments for adolescent bulimia nervosa include FT-B and supportive individual therapy. Internet-delivered cognitive behavioral therapy is a possibly efficacious treatment for binge eating disorder. Experimental treatments for adolescent eating disorders include enhanced cognitive behavioral therapy, dialectical behavioral therapy, cognitive training, and interpersonal psychotherapy. FT-B is the only well-established treatment for adolescent eating disorders. Additional research examining treatment for eating disorders in youth is warranted.
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Affiliation(s)
- James Lock
- a Department of Psychiatry and Behavioral Science , Stanford University School of Medicine
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Brownlow RS, Maguire S, O'Dell A, Dias-da-Costa C, Touyz S, Russell J. Evaluation of an online training program in eating disorders for health professionals in Australia. J Eat Disord 2015; 3:37. [PMID: 26550477 PMCID: PMC4636783 DOI: 10.1186/s40337-015-0078-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 11/02/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Early detection and treatment of eating disorders is instrumental in positive health outcomes for this serious public health concern. As such, workforce development in screening, diagnosis and early treatment of eating disorders is needed. Research has demonstrated both high rates of failure to accurately diagnose and treat cases early and low levels of perceived access to training in eating disorders by health professionals-representing an urgent need for clinician training in this area. However, significant barriers to the access of evidence-based training programs exist, including availability, cost and time, particularly when large geographic distances are involved. Online learning presents a solution to workforce challenges, as it can be delivered anywhere, at a fraction of the cost of traditional training, timing is user controlled, and a growing body of research is demonstrating it as effective as face-to-face training. The Centre for Eating and Dieting Disorders in Australia has developed an Online Training Program In Eating Disorders, to educate health professionals in the nature, identification, assessment and management of eating disorders. The aim of the current study was to evaluate the ability of this online learning course to improve clinician levels of knowledge, skill and confidence to treat eating disorders. As well as its effect on stigmatised beliefs about eating disorders known to effect treatment delivery. METHODS One-hundred-eighty-seven health professionals participated in the program. A pre training questionnaire and a post training evaluation examined participants' levels of knowledge, skill and confidence to treat eating disorders, as well attitudes and beliefs about people with eating disorders. RESULTS Significant improvements in knowledge, skill, and confidence to treat eating disorders was found between pre and post program assessment in health professionals who completed the course, along with a significant decrease in stigmatised beliefs about eating disorders. DISCUSSION The results of this study demonstrated that the online training program was an effective tool in increasing health professionals' level of knowledge, skill and confidence to treat people with eating disorders. The results also demonstrated that online training reduced health professionals' personal bias towards people with eating disorders. Limitations of this study include the use of self-report measures rather than observation of the health professional in clinical practice. As a result, it is not possible to make determinations regarding the translation of these results to clinical settings. CONCLUSIONS The findings of this study suggest that online training programs may present an innovative solution to the considerable workforce development challenges faced by clinicians needing training in eating disorders.
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Affiliation(s)
| | | | - Adrienne O'Dell
- The Centre for Eating and Dieting Disorders, Sydney, NSW Australia
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Strober M, Peris T, Steiger H. The plasticity of development: how knowledge of epigenetics may advance understanding of eating disorders. Int J Eat Disord 2014; 47:696-704. [PMID: 24976293 DOI: 10.1002/eat.22322] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/09/2014] [Accepted: 06/10/2014] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To depict the processes through which animals and human beings engage their environment in continuously evolving states of conflict and cooperation. METHOD Descriptive literature review. RESULTS Life history outcomes are more relative than they are absolute. Genetic variations play a crucial role, but heavily influencing behavioral outcomes, psychopathology included, are external cues that epigenetically remodel DNA along experience-dependent signaling pathways. The result is phenotypes that either optimize adjustment, or constrain it. DISCUSSION Knowledge of epigenetic mechanisms may help shed new light on the origin of maturational phenotypes underlying eating disorders and why adjusting treatments to these realities warrants our attention.
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Affiliation(s)
- Michael Strober
- Department of Psychiatry & Biobehavioral Sciences, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, University of California, Los Angeles; Stewart & Lynda Resnick Neuropsychiatric Hospital at UCLA, Los Angeles, California
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47
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Lipsman N, Woodside DB, Lozano AM. Neurocircuitry of limbic dysfunction in anorexia nervosa. Cortex 2014; 62:109-18. [PMID: 24703713 DOI: 10.1016/j.cortex.2014.02.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 12/30/2013] [Accepted: 02/20/2014] [Indexed: 01/12/2023]
Abstract
Anorexia Nervosa (AN) is a serious psychiatric condition marked by firmly entrenched and maladaptive behaviors and beliefs about body, weight and food, as well as high rates of psychiatric comorbidity. The neural roots of AN are now beginning to emerge, and appear to be related to dysfunctional, primarily limbic, circuits driving pathological thoughts and behaviors. As a result, the significant physical symptoms of AN are increasingly being understood at least partially as a result of abnormal or dysregulated emotional processing. This paper reviews the nature of limbic dysfunction in AN, and how structural and functional imaging has implicated distinct emotional and perceptual neural circuits driving AN symptoms. We propose that top-down and bottom-up influences converge on key limbic modulatory structures, such as the subcallosal cingulate and insula, whose normal functioning is critical to affective regulation and emotional homeostasis. Dysfunctional activity in these structures, as is seen in AN, may lead to emotional processing deficits and psychiatric symptoms, which then drive maladaptive behaviors. Modulating limbic dysregulation may therefore be a potential treatment strategy in some AN patients.
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Affiliation(s)
- Nir Lipsman
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Canada.
| | - D Blake Woodside
- Department of Psychiatry, Toronto General Hospital, University Health Network, Canada
| | - Andres M Lozano
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Canada
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48
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Abstract
Patients with eating disorder have relatively high rates of comorbid personality disorder diagnoses, including both anxiety-based personality disorders (obsessive-compulsive and avoidant) and borderline personality disorder. However, there is preliminary evidence that the core cognitions underlying personality pathology in the eating disorders are those related specifically to anxiety. This article builds on that evidence, replicating and extending the findings with a large sample of patients with eating disorder (N = 374). There were no differences in personality disorder cognitions between eating disorder diagnoses. This study also examines the possibility that there are clusters of patients, differentiated by patterns of personality disorder cognition. Affect-related personality disorder cognitions were key to understanding the role of personality pathology in the eating disorders. It is suggested that those cognitions should be considered when planning psychological treatments.
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Affiliation(s)
- Chloe Gabriel
- *Aston University, Birmingham, UK; †Central and North West London NHS Foundation Trust, London, UK; and ‡Clinical Psychology Unit, Department of Psychology, University of Sheffield, Sheffield, UK
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49
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Abstract
Few treatments for eating disorders have established a base of empirical support, and those that have are still limited by high dropout rates and low abstinence rates. Thus, there is a critical need for innovative eating disorder treatments to fill this gap. The past decade has seen a surge in the development of novel treatments that address eating pathology. This review provides an overview of the emerging psychological treatments for eating disorders, including descriptions of the therapeutic rationales, treatment techniques, and research support. The review will cover face-to-face interventions that are provided in the context of individual or group psychotherapy. Treatments included in this review were organized into the following six categories based on their underlying therapeutic rationales: (1) cognition-focused approaches, (2) emotion regulation approaches, (3) exposure-based approaches, (4) motivational enhancement, (5) integrative approaches, and (6) family- and couple-based interventions.
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Affiliation(s)
- Kelly C Berg
- Department of Psychiatry, University of Minnesota, F282/2A West, 2450 Riverside Avenue, Minneapolis, MN, 55454, USA,
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50
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Abstract
The eating disorders anorexia nervosa (AN) and bulimia nervosa (BN) are severe psychiatric disorders with high mortality. Our knowledge about the neurobiology of eating disorders is very limited, and the question remains whether alterations in brain structure or function in eating disorders are state related, remnants of the illness or premorbid traits. The brain reward system is a relatively well-characterized brain circuitry that plays a central role in the drive to eat and individuals with current or past eating disorders showed alterations in those pathways compared to controls. Here we propose that structural and functional alterations in the insula and frontal cortex, including orbitofrontal and cingulate regions, areas that contribute to reward and anxiety processing, could predispose to developing an eating disorder and that adaptive changes in those circuits in response to malnutrition or repeated binge eating and purging could further promote illness behavior, hinder recovery and contribute to relapse.
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Affiliation(s)
- Guido K W Frank
- Departments of Psychiatry and Neuroscience, University of Colorado Anschutz Medical Campus, School of Medicine, Children's Hospital Colorado, Aurora, CO 80045, USA.
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