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Tesli M, Nesvåg R, Haukvik UK, Gustavson K, Tesli N, Friestad C, Skardhamar T, Naess Ø, Czajkowski N, Kendler KS, Reichborn-Kjennerud T, Ystrom E. Common genetic and environmental risk for personality disorders and psychotic-like experiences in young adult twins. Acta Psychiatr Scand 2023; 148:561-569. [PMID: 37497694 DOI: 10.1111/acps.13596] [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: 01/23/2023] [Revised: 07/11/2023] [Accepted: 07/15/2023] [Indexed: 07/28/2023]
Abstract
INTRODUCTION Psychotic-like experiences (PLE) have been associated with the subsequent emergence of psychotic disorders as well as several other domains of psychopathology. In this twin study, we estimated the genetic and environmental correlations between PLE and 10 personality disorders (PD). METHODS Diagnoses of 10 PDs according to the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) and PLE from the Composite International Diagnostic Interview (CIDI) were retrieved for 2793 young adult twins from the Norwegian Twin Registry. Risk for having a PD and PLEs was modeled using item response theory. Biometric twin models were fitted to estimate the genetic and environmental correlations between PDs and PLEs. Co-twin control analysis was performed to estimate additional within-family risk for PLEs when having a PD. RESULTS Phenotypic overlap between PDs and PLEs ranged from 14% to 44% in males and from 11% to 39% in females, with the highest overlap for borderline PD in both sexes. In general, we found higher genetic correlations (r = 0.14-0.72) than environmental correlations (r = 0.06-0.28) between PDs and PLEs. The highest genetic correlations between PLE and PDs were found for borderline (r = 0.72), paranoid (r = 0.56), schizotypal (r = 0.56) and antisocial PD (r = 0.49). CONCLUSION We found that the co-occurrence between PDs and PLE is the best explained by shared genetic determinants, with minor contributions from environmental factors. Interestingly, borderline PD was highly genetically correlated with PLE, warranting molecular genetic studies of this association.
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Affiliation(s)
- Martin Tesli
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Research and Education in Forensic Psychiatry, Department of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Ragnar Nesvåg
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Unn K Haukvik
- Centre for Research and Education in Forensic Psychiatry, Department of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Kristin Gustavson
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Natalia Tesli
- Centre for Research and Education in Forensic Psychiatry, Department of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Christine Friestad
- Centre for Research and Education in Forensic Psychiatry, Department of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
- University College of Norwegian Correctional Service, Lillestrøm, Norway
| | - Torbjørn Skardhamar
- Department of Sociology and Human Geography, University of Oslo, Oslo, Norway
| | - Øyvind Naess
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Nikolai Czajkowski
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Kenneth S Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, USA
- Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Ted Reichborn-Kjennerud
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Eivind Ystrom
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
- PharmacoEpidemiology and Drug Safety Research Group, School of Pharmacy, University of Oslo, Oslo, Norway
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2
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O'Higgins M, Benito A, Real-López M, Gil-Miravet I, Ochoa E, Haro G. Relationship of DRD5 and MAO-B VNTR polymorphisms with paranoid and antisocial personality disorders in polydrug users. Personal Ment Health 2023; 17:77-86. [PMID: 35961947 DOI: 10.1002/pmh.1563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 11/09/2022]
Abstract
Although multiple studies have shown the role genetics plays in personality disorders and in addictions, few have studied the genetic aspects of their comorbidity. Here, we carried out a cross-sectional study in a sample comprising 303 Caucasian polydrug-consuming patients. The presence of personality disorders was evaluated using the International Personality Disorder Examination, and genes related to dopamine, serotonin and monoamine oxidase (MAO) were genotyped. A significant relationship was observed between the bp 279 DRD5 variable number of tandem repeat (VNTR) polymorphism and paranoid personality disorder OR 95 % CI = 2.186 1.074 ; 4.449 ; p = 0.006 . The bp 182 OR 95 % CI = 0.407 0.178 ; 0.931 ; p = 0.033 and bp 184 OR 95 % CI = 0.391 0.188 ; 0.813 ; p = 0.012 alleles of the MAOB VNTR were also associated with antisocial personality disorder. Among patients with addictions, paranoid personality disorder should also be considered in addition to the importance of antisocial and borderline personality disorders. The higher frequency of the bp 279 DRD5 VNTR allele found in patients with paranoid personality disorder, as well as the associations between alleles of the MAOB VNTR and antisocial personality disorder, support the monoaminergic bases of these personality disorders, especially when dealing with patients with addictions.
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Affiliation(s)
- Marcelo O'Higgins
- Department of Psychiatry, School of Medical Sciences, National University of Asunción, San Lorenzo, Paraguay
| | - Ana Benito
- TXP Research Group, Medicine and Surgery Department, Universidad Cardenal Herrera-CEU, CEU Universities, Castelló, Spain.,Mental Health Unit of Torrent, Hospital General Universitario de Valencia, Valencia, Spain
| | - Matías Real-López
- Pre-department Medicine Unit, Universitat Jaume I, Castelló, Spain.,Severe Mental Disorder in Childhood and Adolescence Program, Mental Health Department, Consorcio Hospitalario Provincial de Castelló, Castelló, Spain
| | - Isis Gil-Miravet
- TXP Research Group, Medicine and Surgery Department, Universidad Cardenal Herrera-CEU, CEU Universities, Castelló, Spain.,Pre-department Medicine Unit, Universitat Jaume I, Castelló, Spain
| | - Enrique Ochoa
- Molecular Biopathology Department, Consorcio Hospitalario Provincial de Castelló, Castelló, Spain
| | - Gonzalo Haro
- TXP Research Group, Medicine and Surgery Department, Universidad Cardenal Herrera-CEU, CEU Universities, Castelló, Spain.,Severe Dual Pathology Program, Mental Health Department, Consorcio Hospitalario Provincial de Castelló, Castelló, Spain
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3
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Development and Validation of a Measure of Passive Aggression Traits: The Passive Aggression Scale (PAS). Behav Sci (Basel) 2022; 12:bs12080273. [PMID: 36004844 PMCID: PMC9405400 DOI: 10.3390/bs12080273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 07/31/2022] [Accepted: 08/04/2022] [Indexed: 11/24/2022] Open
Abstract
Although passive aggression is known as a pathological personality trait, the concept is unclear, and there is a lack of tools to measure it comprehensively. Thus, this study developed and validated a tool for measuring passive-aggressive behaviors. Data on basic information about passive aggression traits were collected from 20 experts using open-ended questions. To verify content validity, Delphi surveys were conducted twice with five experts. Data for item analysis were collected from 123 Korean adults. Reliability and validity were analyzed using data obtained from 408 Korean adults. The three-factor model for the passive aggression scale (PAS) showed satisfactory model fits. Cronbach’s αs for inducing criticism, avoiding/ignoring, and sabotaging subscales, and the total PAS, were 0.91, 0.91, 0.92, and 0.93, respectively. The test–retest coefficient of the PAS also indicates that this tool is reliable. Analyses of the criterion-related validity revealed that the PAS was closely correlated with the scores of some scales that measure passive aggression with a single factor. In addition, the correlations between the PAS, Cook-Medley Hostility Scale, and State-Trait Anger Expression Inventory scores supported our understanding of the concept of passive aggression. This study highlights the utility of PAS as a useful and comprehensive measure of passive-aggressive behaviors to be adopted by researchers and clinicians.
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4
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Czajkowski N, Kendler KS, Torvik FA, Ystrom E, Rosenström T, Gillespie N, Reichborn-Kjennerud T. Caffeine consumption, toxicity, tolerance and withdrawal; shared genetic influences with normative personality and personality disorder traits. Exp Clin Psychopharmacol 2021; 29:650-658. [PMID: 33252959 PMCID: PMC8733938 DOI: 10.1037/pha0000429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Our main aim was to estimate the extent of overlapping etiology between caffeine consumption and response and normative and pathological personality. Linear mixed-effects models were used to identify normative personality domains and personality disorder (PD) traits for inclusion in multivariate twin analyses together with individual caffeine related measures. Data were obtained from Norwegian adult twins in a face-to-face interview conducted in 1999-2004 as part of a population-based study of mental health and through self-report in 2010-2011 and 2015-2017. Personality disorder data was available for 2,793 twins, normative personality for 3,889 twins, and caffeine for 3,862 twins (mean age 43.0 years). Normative personality was assessed using the self-reported Big Five Inventory, PD traits were assessed by the Structured Interview for DSM-IV Personality, and caffeine consumption, toxicity, tolerance, and withdrawal were assessed through a self-report questionnaire developed at the Norwegian Institute of Public Health. Caffeine measures were found to be moderately heritable, h2 = 30.1%-45.0%. All normative personality domains and four PD traits, antisocial, borderline, dependent and paranoid, were significantly associated with at least one caffeine variable. A small proportion of variance in caffeine consumption was attributable to genetic factors shared with normative personality (1.3%) and personality disorders (11.4%). A modest proportion of variance in caffeine tolerance and toxicity was attributable to genetic factors shared with both normative personality (26.9%, 24.8%) and personality disorders (21.0%, 36.0%). The present study found caffeine consumption and response to be heritable and provides evidence that a small to-modest proportion of this genetic etiology is shared with both normative and pathological personality. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Nikolai Czajkowski
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo Norway, Richmond, VA.,PROMENTA Research Center, Department of Psychology, University of Oslo, Oslo, Norway
| | - Kenneth S. Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA.,Departments of Psychiatry, Virginia Commonwealth University, Richmond, VA.,Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA. USA
| | - Fartein Ask Torvik
- Department of Psychology, University of Oslo, Richmond, VA.,Centre for fertility and health, Norwegian Institute of Public Health, Oslo Norway, Helsinki, Finland
| | - Eivind Ystrom
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo Norway, Richmond, VA.,PROMENTA Research Center, Department of Psychology, University of Oslo, Oslo, Norway.,School of Pharmacy, University of Oslo, Oslo, Norway
| | - Tom Rosenström
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo Norway, Richmond, VA.,Department of Psychiatry, HUS Helsinki University Hospital, Helsinki, Finland.,Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Nathan Gillespie
- Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA.,Departments of Psychiatry, Virginia Commonwealth University, Richmond, VA
| | - Ted Reichborn-Kjennerud
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo Norway, Richmond, VA.,Institute of Clinical Medicine, University of Oslo, Richmond, VA
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5
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Reich J, Schatzberg A. Prevalence, Factor Structure, and Heritability of Avoidant Personality Disorder. J Nerv Ment Dis 2021; 209:764-772. [PMID: 34582403 DOI: 10.1097/nmd.0000000000001378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT To review the community prevalence, factor structure, and heritability of avoidant personality disorder (AVPD), we reviewed the literature of empirical studies reported between years 1980 and 2020. Community point prevalence rates ranged from 0.8% to 5%, with one study of women older than 25 years finding a lifetime rate of 9.3%. A weighted point prevalence for studies involving both men and women was 3.3%. All factor analytic studies indicated a one factor solution. The themes were social inadequacy, feeling inferior, and fears of social rejection. Family studies of heritability for AVPD ranged from 0.18 to 0.56. Twin studies ranged from 0.28 to 0.71. The weighted average for heritability was 0.55. AVPD is an important clinical issue because it is prevalent in the community and has high morbidity and high heritability. Its single factor seems to suggest evaluation and treatment should be straightforward, but despite this, it tends to be underdiagnosed and undertreated.
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Affiliation(s)
| | - Alan Schatzberg
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford
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6
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Shields AN, Oltmanns TF, Boudreaux MJ, Paul SE, Bogdan R, Tackett JL. The Impact of Personality Pathology Across Three Generations: Evidence from the St. Louis Personality and Intergenerational Network Study. Clin Psychol Sci 2021; 9:900-918. [PMID: 35433118 PMCID: PMC9009746 DOI: 10.1177/2167702621989665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Personality disorder (PD) symptoms in a parent generation may confer risk for problems in future generations, but intergenerational transmission has not been studied beyond parent-child effects. We examined the generational transfer of risk associated with PDs using structural models of grandparent personality pathology and grandchild psychopathology among 180 adults (M age =66.9), 218 of their children (M age =41.2), and 337 of their grandchildren (M age =10.5). We found evidence for general and heterotypic domain-specific transmission. Specifically, broad grandparent personality pathology was associated with broad grandchild psychopathology (B=.15, 95% CI [-.01, .31]); at the domain level, grandparent internalizing personality pathology was associated with grandchild externalizing psychopathology (B =.06, 95% CI [.01, .12]). Neither association was significantly mediated by parental personality pathology. These findings indicate that personality pathology in one generation confers risk for psychopathology across subsequent generations. Such intergenerational transmission operates across broad, rather than specific (i.e., individual disorder) psychopathology domains.
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Affiliation(s)
| | - Thomas F. Oltmanns
- Department of Psychological and Brain Sciences, Washington University in St. Louis
| | | | - Sarah E. Paul
- Department of Psychological and Brain Sciences, Washington University in St. Louis
| | - Ryan Bogdan
- Department of Psychological and Brain Sciences, Washington University in St. Louis
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7
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Flynn TP, Parnes JE, Conner BT. Personality Disorders, Risky Behaviors, and Adversity: The Moderating Role of Resilience. Psychol Rep 2021; 125:2936-2955. [PMID: 34292099 DOI: 10.1177/00332941211028998] [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: 11/16/2022]
Abstract
Individuals with personality disorders (PDs) comprise 30% to 40% of individuals receiving mental health treatment. Treatment of PDs is exceedingly difficult; therefore, research has focused on PD etiology and preventative factors. One known influence on PD etiology is adverse childhood experiences (ACEs). ACEs are associated with increased prevalence of several health risk behaviors (HRBs), including engagement in substance use, criminal, and risky sexual behavior. One protective factor, childhood resiliency, predicts lower prevalence of PDs and engagement in HRBs. We hypothesized that increased prevalence of ACEs would predict higher levels of PD symptoms and HRBs engagement. Furthermore, we predicted that childhood resiliency would moderate the relation between ACEs, PD symptoms, and HRBs. In the present study, students (N = 531) completed the Adverse Childhood Experiences survey, the Self-Administered - Standardized Assessment of Personality Abbreviated Scale, and the Childhood Youth and Resiliency Measure-28. They also responded to questions about substance use, criminal, and sexual behavior which were used to define a latent HRB variable. Structural equation modeling was conducted to examine study hypotheses. As hypothesized, we found positive relations between ACEs, PD symptoms, and our HRB latent variable. Childhood resiliency moderated both ACE and PD symptom paths. At lower levels of reported ACEs, individuals high in childhood resiliency reported fewer PD symptoms and HRBs than individuals low in childhood resiliency. At high levels of ACEs, childhood resiliency did not serve as a protective factor. Additionally, study findings suggest that childhood resiliency factors are integral for protecting against the development of these disorders.
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Affiliation(s)
- Talon P Flynn
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
| | - Jamie E Parnes
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
| | - Bradley T Conner
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
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8
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Satoh Y. The Potential of Hydrogen for Improving Mental Disorders. Curr Pharm Des 2021; 27:695-702. [PMID: 33185151 DOI: 10.2174/1381612826666201113095938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/20/2020] [Indexed: 11/22/2022]
Abstract
In 2007, Ohsawa and colleagues reported that molecular hydrogen (H2) gas significantly reduced the infarct volume size in a rat model of cerebral infarction, which was, at least, partially due to scavenging hydroxyl radicals. Since then, multiple studies have shown that H2 has not only anti-oxidative but also anti-inflammatory and anti-apoptotic properties, which has ignited interest in the clinical use of H2 in diverse diseases. A growing body of studies has indicated that H2 affects both mental and physical conditions. Mental disorders are characterized by disordered mood, thoughts, and behaviors that affect the ability to function in daily life. However, there is no sure way to prevent mental disorders. Although antidepressant and antianxiety drugs relieve symptoms of depression and anxiety, they have efficacy limitations and are accompanied by a wide range of side effects. While mental disorders are generally thought to be caused by a variety of genetic and/or environmental factors, recent progress has shown that these disorders are strongly associated with increased oxidative and inflammatory stress. Thus, H2 has received much attention as a novel therapy for the prevention and treatment of mental disorders. This review summarizes the recent progress in the use of H2 for the treatment of mental disorders and other related diseases. We also discuss the potential mechanisms of the biomedical effects of H2 and conclude that H2 could offer relief to people suffering from mental disorders.
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Affiliation(s)
- Yasushi Satoh
- Department of Biochemistry, National Defense Medical College, Tokorozawa, Saitama, Japan
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9
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Hauger LE, Havnes IA, Jørstad ML, Bjørnebekk A. Anabolic androgenic steroids, antisocial personality traits, aggression and violence. Drug Alcohol Depend 2021; 221:108604. [PMID: 33621808 DOI: 10.1016/j.drugalcdep.2021.108604] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Anabolic androgenic steroid (AAS) use is associated with a wide range of adverse physical, psychological and social effects. While some experience few side effects, others might experience severe consequences. Aggression and violence are among the often-cited side effects associated with high-dose AAS use; however, most of the knowledge is generated from subgroups, such as prison populations. A likely hypothesis is that AAS use is associated with aggression and violence, but that these associations are complex and may be mediated by several factors, such as substance use, AAS dependence and personality traits. METHODS In the present study, we tested this hypothesis by examining the relations between long-term AAS use and AAS dependence, aggression, interpersonal violence and potential mediating factors in a sample of male AAS exposed and non-exposed weightlifting controls (WLC), using self-report questionnaires. Based upon AAS dependence criteria, a sample of male AAS users and WLC (N = 139) were stratified into three groups: WLC (n = 66), AAS dependents (n = 41) and AAS non-dependents (n = 32). RESULTS The results demonstrate that AAS dependents reported significantly higher levels of aggression compared to WLC and AAS non-dependents. While interpersonal violence was reported in all three groups, the highest percentage was found in the AAS dependent group. CONCLUSION In summary, our study confirms a link between AAS use, aggression and violence in a weightlifting population. However, the association is foremost seen in AAS dependent users and it seems that antisocial personality traits are an important mediator.
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Affiliation(s)
- Lisa E Hauger
- The Anabolic Androgenic Steroid Research Group, The Division of Mental Health and Addiction, Oslo University Hospital, Postbox 4959, Nydalen, Norway; National Centre for Epilepsy, Division for Clinical Neuroscience, Oslo University Hospital, Postbox 4959, Nydalen, Norway.
| | - Ingrid A Havnes
- The Anabolic Androgenic Steroid Research Group, The Division of Mental Health and Addiction, Oslo University Hospital, Postbox 4959, Nydalen, Norway
| | - Marie L Jørstad
- The Anabolic Androgenic Steroid Research Group, The Division of Mental Health and Addiction, Oslo University Hospital, Postbox 4959, Nydalen, Norway
| | - Astrid Bjørnebekk
- The Anabolic Androgenic Steroid Research Group, The Division of Mental Health and Addiction, Oslo University Hospital, Postbox 4959, Nydalen, Norway
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10
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Wang Q, Liu G, Li J, Zhang M, Chen H, Chen C, Wang C, Liu N, Zhang N. Effects of interaction of NOS1AP gene polymorphisms and childhood abuse on paranoid personality disorder features among male violent offenders in China. J Psychiatr Res 2020; 130:180-186. [PMID: 32828023 DOI: 10.1016/j.jpsychires.2020.07.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/02/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Paranoid Personality Disorder (PPD) results from a complex synergy between genetic and environmental factors. Childhood abuse is one of risk factors. Nitric Oxide Synthase 1 Adaptor Protein (NOS1AP) is a candidate gene of schizophrenia, which has similar pathophysiology to PPD. This study investigated the role of NOS1AP gene polymorphisms and a history of childhood abuse in predicting PPD features among male violent offenders in the Chinese Han population. METHOD Four NOS1AP Single Nucleotide Polymorphisms (SNPs), rs4145621, rs3751284, rs348624 and rs6680461 were genotyped in a sample of 423 male prisoners. Participant evaluations included demographic information, measures of childhood abuse (Child Trauma Questionnaire, CTQ), and PPD features (Personality Diagnostic Questionnaire-4, PDQ-4). Participants were divided into a PPD group and non-PPD group assessed by PDQ-4. RESULTS Regression analysis revealed that emotional abuse, NOS1AP SNPs rs348624 and rs4145621 predicted PPD features (P < 0.05) among prison samples. Significant interactions between childhood abuse history and NOS1AP SNPs rs3751284 and rs6680461 were also observed. Individuals carrying the C allele of rs3751284 were susceptible to PPD features when exposed to higher levels of emotional neglect (P < 0.05); Individuals with the G allele of rs6680461 were susceptible to PPD features when exposed to higher levels of emotional, physical and sexual abuse (P < 0.01). CONCLUSIONS These results suggest that the interaction between childhood abuse and NOS1AP gene polymorphisms may have an influence on PPD features, at least in male violent offenders.
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Affiliation(s)
- Qiuyu Wang
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Gang Liu
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, Jiangsu, China; Cognitive Behavioral Therapy Institute of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jinyang Li
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Zhang
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; School of Psychology, Nanjing Normal University, Nanjing, Jiangsu, China
| | - Haocheng Chen
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; The Forth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Chen Chen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai, China
| | - Chun Wang
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, Jiangsu, China; Cognitive Behavioral Therapy Institute of Nanjing Medical University, Nanjing, Jiangsu, China; School of Psychology, Nanjing Normal University, Nanjing, Jiangsu, China.
| | - Na Liu
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Ning Zhang
- The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, Jiangsu, China; Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, Jiangsu, China; Cognitive Behavioral Therapy Institute of Nanjing Medical University, Nanjing, Jiangsu, China; School of Psychology, Nanjing Normal University, Nanjing, Jiangsu, China
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11
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Lugasi L, Grinberg I, Rudnick-Glick S, Okun E, Einat H, Margel S. Designed proteinoid polymers and nanoparticles encapsulating risperidone for enhanced antipsychotic activity. J Nanobiotechnology 2020; 18:149. [PMID: 33087104 PMCID: PMC7580026 DOI: 10.1186/s12951-020-00709-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/09/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Nanoparticles (NPs) incorporating drug formulations can be used to facilitate passage through biological barriers including the blood-brain barrier (BBB) and increase drug delivery and bioavailability. Hence, NP-based administration may enhance the efficiency of current antipsychotics. Encapsulation within NPs can resolve aqueous solubility problems that not only reduce permeability through the BBB but also affect targeting. The present study describes a new drug delivery system based on proteinoid NPs to explore the possibility of improving drug efficacy. Risperidone (RSP) is a commonly used atypical antipsychotic medication, and was therefore selected for encapsulation by proteinoid NPs. RESULTS Proteinoid polymers with high molecular weight and low polydispersity were synthesized from L-amino acids and poly-L-lactic acid (PLLA) by thermal step-growth polymerization mechanism. RSP-loaded proteinoid NPs were then prepared using a self-assembly process in the presence of RSP, followed by PEGylation. The optimal PEGylated RSP-loaded NPs were characterized in terms of diameter and size distribution, drug loading, ζ-potential, cytotoxicity, biodistribution, and psychopharmacological effects. The findings indicate significantly higher antipsychotic activity of drug-loaded proteinoid NPs compared to free RSP. CONCLUSIONS Proteinoid NPs enhance RSP delivery and may potentially increase drug efficiency by reducing dosage and side effects.
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Affiliation(s)
- L Lugasi
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - I Grinberg
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - S Rudnick-Glick
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - E Okun
- The Mina and Everard Goodman, Faculty of Life Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - H Einat
- The School of Behavioral Sciences, Tel Aviv-Yaffo Academic College, 6818211, Tel Aviv, Israel
| | - S Margel
- Department of Chemistry, The Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, 5290002, Ramat Gan, Israel.
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12
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McNeill RV, Ziegler GC, Radtke F, Nieberler M, Lesch KP, Kittel-Schneider S. Mental health dished up-the use of iPSC models in neuropsychiatric research. J Neural Transm (Vienna) 2020; 127:1547-1568. [PMID: 32377792 PMCID: PMC7578166 DOI: 10.1007/s00702-020-02197-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022]
Abstract
Genetic and molecular mechanisms that play a causal role in mental illnesses are challenging to elucidate, particularly as there is a lack of relevant in vitro and in vivo models. However, the advent of induced pluripotent stem cell (iPSC) technology has provided researchers with a novel toolbox. We conducted a systematic review using the PRISMA statement. A PubMed and Web of Science online search was performed (studies published between 2006–2020) using the following search strategy: hiPSC OR iPSC OR iPS OR stem cells AND schizophrenia disorder OR personality disorder OR antisocial personality disorder OR psychopathy OR bipolar disorder OR major depressive disorder OR obsessive compulsive disorder OR anxiety disorder OR substance use disorder OR alcohol use disorder OR nicotine use disorder OR opioid use disorder OR eating disorder OR anorexia nervosa OR attention-deficit/hyperactivity disorder OR gaming disorder. Using the above search criteria, a total of 3515 studies were found. After screening, a final total of 56 studies were deemed eligible for inclusion in our study. Using iPSC technology, psychiatric disease can be studied in the context of a patient’s own unique genetic background. This has allowed great strides to be made into uncovering the etiology of psychiatric disease, as well as providing a unique paradigm for drug testing. However, there is a lack of data for certain psychiatric disorders and several limitations to present iPSC-based studies, leading us to discuss how this field may progress in the next years to increase its utility in the battle to understand psychiatric disease.
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Affiliation(s)
- Rhiannon V McNeill
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Georg C Ziegler
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Franziska Radtke
- Department of Child and Adolescent Psychiatry, Psychosomatic Medicine and Psychotherapy University Hospital, University of Würzburg, Würzburg, Germany
| | - Matthias Nieberler
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Klaus-Peter Lesch
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, University of Würzburg, Margarete-Höppel-Platz 1, 97080, Würzburg, Germany.
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Haghighatfard A, Andalib S, Amini Faskhodi M, Sadeghi S, Ghaderi AH, Moradkhani S, Rostampour J, Tabrizi Z, Mahmoodi A, Karimi T, Ghadimi Z. Gene expression study of mitochondrial complex I in schizophrenia and paranoid personality disorder. World J Biol Psychiatry 2019. [PMID: 28635542 DOI: 10.1080/15622975.2017.1282171] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aetiology and molecular mechanisms of schizophrenia (SCZ) and paranoid personality disorder (PPD) are not yet clarified. The present study aimed to assess the role of mitochondrial complex I and cell bioenergetic pathways in the aetiology and characteristics of SCZ and PPD. METHODS mRNA levels of all genomic and mitochondrial genes which encode mitochondrial complex I subunits (44 genes) were assessed in blood in 634 SCZ, 340 PPD patients and 528 non-psychiatric subjects using quantitative real-time PCR, and associated comprehensive psychiatric, neurological and biochemical assessments. RESULTS Significant expression changes of 18 genes in SCZ patients and 11 genes in PPD patients were detected in mitochondrial complex I. Most of these genes were novel candidate genes for SCZ and PPD. Several correlations between mRNA levels and severity of symptoms, drug response, deficits in attention, working memory, executive functions and brain activities were found. CONCLUSIONS Deregulations of both core and supernumerary subunits of complex I are involved in the aetiology of SCZ and PPD. These deregulations have effects on brain activity as well as disorder characteristics.
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Affiliation(s)
- Arvin Haghighatfard
- a Department of Biology, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Sarah Andalib
- b Institute for Brain and Cognitive Science , Shahid Beheshti University , Tehran , Iran
| | - Mozhdeh Amini Faskhodi
- c Department of Biology , Tehran Medical Branch, Islamic Azad University , Tehran , Iran
| | - Soha Sadeghi
- d Laboratory of Medical Genetics , National Institute of Genetic Engineering and Biotechnology (NIGEB) , Tehran , Iran
| | - Amir Hossein Ghaderi
- e Cognitive Neuroscience Lab, Department of Psychology , University of Tabriz , Tabriz , Iran
| | - Shadi Moradkhani
- f Department of Physics , Amirkabir University of Technology , Tehran , Iran
| | - Jalal Rostampour
- g Department of Cell & Molecular Biology , School of Biology, College of Science, University of Tehran , Tehran , Iran
| | - Zeinab Tabrizi
- h Department of Medical Immunology , Shahid Sadoughi University of Medical Sciences and Health Services , Yazd , Iran
| | - Ali Mahmoodi
- a Department of Biology, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Talie Karimi
- i Medical Biotechnology Research Center, Ashkezar Branch , Islamic Azad University , Ashkezar , Iran
| | - Zakieh Ghadimi
- j Department of Biology , Qom Branch, Islamic Azad University , Qom , Iran
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14
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Beckwith N, McDowell MJ, Reisner SL, Zaslow S, Weiss RD, Mayer KH, Keuroghlian AS. Psychiatric Epidemiology of Transgender and Nonbinary Adult Patients at an Urban Health Center. LGBT Health 2019; 6:51-61. [PMID: 30707624 PMCID: PMC6434596 DOI: 10.1089/lgbt.2018.0136] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Transgender and nonbinary people have an increased burden of psychiatric problems compared with the general population. Data are needed to understand factors associated with psychiatric diagnoses, acuity in terms of suicide attempts and level-of-care escalation, and outpatient engagement among transgender and nonbinary adults. METHODS We conducted a retrospective review of records from 201 transgender and nonbinary adults who presented for primary care at a health center. Regression models were fit to examine factors associated with psychiatric diagnoses, substance use disorders (SUDs), acuity, and outpatient behavioral health engagement. RESULTS Male sex assignment at birth was associated with decreased odds of a psychiatric diagnosis (odds ratio [OR] 0.40, 95% confidence interval [CI]: 0.20-0.81). Increased odds of SUDs were associated with later hormone initiation (OR 1.04, 95% CI: 1.01-1.08) and suicide attempt (OR 5.79, 95% CI: 2.08-16.15). Increased odds of higher acuity were associated with alcohol use disorder (OR 31.54, 95% CI: 5.73-173.51), post-traumatic stress disorder (OR 18.14, 95% CI: 2.62-125.71), major depressive disorder (MDD) (OR 6.62, 95% CI: 1.72-25.44), and absence of psychiatrist integration into primary medical care (OR 4.52, 95% CI: 1.26-16.22). Increased odds of outpatient behavioral health engagement were associated with case management utilization (OR 10.73, 95% CI: 1.32-87.53), anxiety disorders (OR 15.84, 95% CI: 2.00-125.72), and MDD (OR 10.45, 95% CI: 2.28-47.98). CONCLUSION Psychiatric disorders were highly prevalent among transgender and nonbinary adult patients. Novel findings include associations of lack of psychiatrist integration into primary care with acuity and of case management utilization with outpatient behavioral health engagement.
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Affiliation(s)
- Noor Beckwith
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Michal J. McDowell
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Sari L. Reisner
- Harvard Medical School, Boston, Massachusetts
- The Fenway Institute, Fenway Health, Boston, Massachusetts
- Division of General Pediatrics, Boston Children's Hospital, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Shayne Zaslow
- The Fenway Institute, Fenway Health, Boston, Massachusetts
- Department of Sociology, University of Virginia, Charlottesville, Virginia
| | - Roger D. Weiss
- Harvard Medical School, Boston, Massachusetts
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, Massachusetts
| | - Kenneth H. Mayer
- Harvard Medical School, Boston, Massachusetts
- The Fenway Institute, Fenway Health, Boston, Massachusetts
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Alex S. Keuroghlian
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- The Fenway Institute, Fenway Health, Boston, Massachusetts
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15
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Thomas M, Knoblich N, Wallisch A, Glowacz K, Becker-Sadzio J, Gundel F, Brückmann C, Nieratschker V. Increased BDNF methylation in saliva, but not blood, of patients with borderline personality disorder. Clin Epigenetics 2018; 10:109. [PMID: 30134995 PMCID: PMC6106893 DOI: 10.1186/s13148-018-0544-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/07/2018] [Indexed: 12/12/2022] Open
Abstract
Background The importance of epigenetic alterations in psychiatric disorders is increasingly acknowledged and the use of DNA methylation patterns as markers of disease is a topic of ongoing investigation. Recent studies suggest that patients suffering from Borderline Personality Disorder (BPD) display differential DNA methylation of various genes relevant for neuropsychiatric conditions. For example, several studies report differential methylation in the promoter region of the brain-derived neurotrophic factor gene (BDNF) in blood. However, little is known about BDNF methylation in other tissues. Results In the present study, we analyzed DNA methylation of the BDNF IV promoter in saliva and blood of 41 BPD patients and 41 matched healthy controls and found significant hypermethylation in the BPD patient’s saliva, but not blood. Further, we report that BDNF methylation in saliva of BPD patients significantly decreased after a 12-week psychotherapeutic intervention. Conclusions Providing a direct comparison of BDNF methylation in blood and saliva of the same individuals, our results demonstrate the importance of choice of tissue for the study of DNA methylation. In addition, they indicate a better suitability of saliva for the study of differential BDNF methylation in BPD patients. Further, our data appear to indicate a reversal of disease-specific alterations in BDNF methylation in response to psychotherapy, though further experiments are necessary to validate these results and determine the specificity of the effect. Electronic supplementary material The online version of this article (10.1186/s13148-018-0544-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mara Thomas
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany.,Graduate Training Centre of Neuroscience, University of Tübingen, Tübingen, Germany
| | - Nora Knoblich
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Annalena Wallisch
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Katarzyna Glowacz
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Julia Becker-Sadzio
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Friederike Gundel
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Christof Brückmann
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany
| | - Vanessa Nieratschker
- Department of Psychiatry and Psychotherapy, University Hospital Tübingen, Calwerstr. 14, 72076, Tübingen, Germany.
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16
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Rosenström T, Torvik FA, Ystrom E, Czajkowski NO, Gillespie NA, Aggen SH, Krueger RF, Kendler KS, Reichborn-Kjennerud T. Prediction of alcohol use disorder using personality disorder traits: a twin study. Addiction 2018; 113:15-24. [PMID: 28734091 PMCID: PMC5725242 DOI: 10.1111/add.13951] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/27/2017] [Accepted: 07/14/2017] [Indexed: 01/31/2023]
Abstract
BACKGROUND AND AIMS The DSM-IV personality disorders (PDs) are comorbid with alcohol use disorder (AUD) and with each other. It remains unclear which PD criteria are most likely to drive onset and recurrence of AUD and which are merely confounded with those criteria. We determine which individual PD criteria predict AUD and the degree of underlying genetic and/or environmental aetiology. DESIGN A prospective observational twin study. SETTING Norway 1999-2011. PARTICIPANTS A total of 2528 and 2275 Norwegian adult twins in waves 1 and 2 variable-selection analyses, and 2785 in biometric analyses. MEASUREMENTS DSM-IV PDs and their 80 criteria were assessed using a structured personal interview, and AUD using the World Health Organization's Composite International Diagnostic Interview. FINDINGS In a variable-selection analysis, two PD criteria were associated with AUD even after taking all the other criteria into account: criterion 8 of antisocial PD (childhood conduct disorder) and criterion 4 of borderline PD (self-damaging impulsive behaviours). Adjusting for each other, their respective odds ratios were 3.4 [confidence interval (CI) = 2.1-5.4] and 5.0 (CI = 3.3-7.7). Endorsement strength of the criteria was associated with AUD in a dose-response manner and they explained 5.5% of variation in AUD risk-more than the full diagnoses of antisocial and borderline PDs together (0.5%). The association between borderline criterion 4 and AUD 10 years later derived mainly from their overlapping genetic factors, whereas the association between antisocial criterion 8 and AUD 10 years later was due to both genetic and non-genetic factors. CONCLUSIONS Conduct disorder and self-harming impulsivity are the foremost risk traits for alcohol use disorder among the 80 personality disorder criteria of DSM-IV, predicting alcohol use disorder more effectively than personality disorder diagnoses. The twin-study analysis suggested that conduct disorder represents a joint genetic and developmental risk for alcohol use disorder and that impulsivity is a genetic risk.
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Affiliation(s)
- Tom Rosenström
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway,Correspondence:
| | - Fartein Ask Torvik
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway,Department of Psychology, University of Oslo, Norway
| | - Eivind Ystrom
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway,Department of Psychology, University of Oslo, Norway,PharmacoEpidemiology and Drug Safety Research Group, School of Pharmacy, University of Oslo, Norway
| | - Nikolai Olavi Czajkowski
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway,Department of Psychology, University of Oslo, Norway
| | - Nathan A. Gillespie
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - Steven H. Aggen
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Kenneth S Kendler
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA,Deparment of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA, USA,Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
| | - Ted Reichborn-Kjennerud
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway,Institute of Clinical Medicine, University of Oslo, Norway
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17
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Hengartner MP, van der Linden D, Dunkel CS. Establishing the Substantive Interpretation of the GFP by Considering Evidence from Research on Personality Disorders and Animal Personality. Front Psychol 2017; 8:1771. [PMID: 29062299 PMCID: PMC5640702 DOI: 10.3389/fpsyg.2017.01771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/25/2017] [Indexed: 01/19/2023] Open
Affiliation(s)
- Michael P Hengartner
- Department of Applied Psychology, Zurich University of Applied Sciences, Zurich, Switzerland
| | - Dimitri van der Linden
- Department of Psychology, Education, and Child Studies, Erasmus University Rotterdam, Rotterdam, Netherlands
| | - Curtis S Dunkel
- Department of Psychology, Western Illinois University, Macomb, IL, United States
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18
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Abstract
The development of adult personality disorder symptoms, including transactional processes of relationship representational and behavioral experience from infancy to early adolescence, was examined using longitudinal data from a risk sample (N = 162). Significant preliminary correlations were found between early caregiving experience and adult personality disorder symptoms and between representational and behavioral indices across time and adult symptomatology. Significant correlations were also found among diverse representational assessments (e.g., interview, drawing, and projective narrative) and between concurrent representational and observational measures of relationship functioning. Path models were analyzed to investigate the combined relations of caregiving experience in infancy; relationship representation and experience in early childhood, middle childhood, and early adolescence; and personality disorder symptoms in adulthood. The hypothesized model representing interactive contributions of representational and behavioral experience represented the data significantly better than competing models representing noninteractive contributions. Representational and behavioral indicators mediated the link between early caregiving quality and personality disorder symptoms. The findings extend previous studies of normative development and support an organizational developmental view that early relationship experiences contribute to socioemotional maladaptation as well as adaptation through the progressive transaction of mutually informing expectations and experience.
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19
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Amad A, Ramoz N, Thomas P, Jardri R, Gorwood P. Genetics of borderline personality disorder: systematic review and proposal of an integrative model. Neurosci Biobehav Rev 2014; 40:6-19. [PMID: 24456942 DOI: 10.1016/j.neubiorev.2014.01.003] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 12/13/2013] [Accepted: 01/09/2014] [Indexed: 12/31/2022]
Abstract
Borderline personality disorder (BPD) is one of the most common mental disorders and is characterized by a pervasive pattern of emotional lability, impulsivity, interpersonal difficulties, identity disturbances, and disturbed cognition. Here, we performed a systematic review of the literature concerning the genetics of BPD, including familial and twin studies, association studies, and gene-environment interaction studies. Moreover, meta-analyses were performed when at least two case-control studies testing the same polymorphism were available. For each gene variant, a pooled odds ratio (OR) was calculated using fixed or random effects models. Familial and twin studies largely support the potential role of a genetic vulnerability at the root of BPD, with an estimated heritability of approximately 40%. Moreover, there is evidence for both gene-environment interactions and correlations. However, association studies for BPD are sparse, making it difficult to draw clear conclusions. According to our meta-analysis, no significant associations were found for the serotonin transporter gene, the tryptophan hydroxylase 1 gene, or the serotonin 1B receptor gene. We hypothesize that such a discrepancy (negative association studies but high heritability of the disorder) could be understandable through a paradigm shift, in which "plasticity" genes (rather than "vulnerability" genes) would be involved. Such a framework postulates a balance between positive and negative events, which interact with plasticity genes in the genesis of BPD.
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Affiliation(s)
- Ali Amad
- Univ Lille Nord de France, CHRU de Lille, F-59000 Lille, France; Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université Droit & Santé Lille (UDSL), F-59000 Lille, France; Psychiatry and Pediatric Psychiatry Department, University Medical Centre of Lille (CHULille), F-59037 Lille, France.
| | - Nicolas Ramoz
- INSERM U894, Centre de Psychiatrie & Neurosciences, Paris, France
| | - Pierre Thomas
- Univ Lille Nord de France, CHRU de Lille, F-59000 Lille, France; Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université Droit & Santé Lille (UDSL), F-59000 Lille, France; Psychiatry and Pediatric Psychiatry Department, University Medical Centre of Lille (CHULille), F-59037 Lille, France
| | - Renaud Jardri
- Univ Lille Nord de France, CHRU de Lille, F-59000 Lille, France; Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université Droit & Santé Lille (UDSL), F-59000 Lille, France; Psychiatry and Pediatric Psychiatry Department, University Medical Centre of Lille (CHULille), F-59037 Lille, France
| | - Philip Gorwood
- INSERM U894, Centre de Psychiatrie & Neurosciences, Paris, France; Sainte-Anne Hospital (Paris-Descartes University), Paris, France
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20
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Affiliation(s)
- Gregory A. Miller
- Department of Psychology, University of Delaware, Newark, Delaware 19716;
- Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany
- Department of Psychology and Beckman Institute, University of Illinois at Urbana-Champaign, Illinois 61820
| | - Brigitte Rockstroh
- Department of Psychology, University of Konstanz, 78457 Konstanz, Germany;
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21
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Concomitants of family histories of mood disorders and alcoholism in a clinical cohort of patients with bipolar I and II disorder. J Nerv Ment Dis 2012; 200:388-94. [PMID: 22551791 DOI: 10.1097/nmd.0b013e3182531f2e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We diagnosed 191 secondary-care outpatients and inpatients with DSM-IV BD I or II. Sociodemographic and clinical characteristics, including axis I and II comorbidity, neuroticism, and prospective life-chart were evaluated at intake and at 6 and 18 months. The family history (FH) of mood disorders, alcoholism, or any major psychiatric disorders among first-degree relatives was investigated in a semistructured interview. Most (74%) patients had some positive FH; 55% of mood disorder, 36% of alcoholism. Positive FH was associated with psychiatric comorbidity and depressive course in the proband. Based on a multinomial logistic regression model, patients with an FH of mood disorder and alcoholism had an odds ratio of 4.8 (p = 0.001) for having an anxiety disorder. Overall, the first-degree relatives of patients with BD have multiple types of mental disorders, which correlate with bipolar patients' course of illness and psychiatric comorbidity. The strongest associations are between FH of mood disorders and presence of comorbid anxiety disorders.
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22
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Manzardo AM, Henkhaus R, Hidaka B, Penick EC, Poje AB, Butler MG. X chromosome inactivation in women with alcoholism. Alcohol Clin Exp Res 2012; 36:1325-9. [PMID: 22375556 DOI: 10.1111/j.1530-0277.2012.01740.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Accepted: 12/09/2011] [Indexed: 11/28/2022]
Abstract
BACKGROUND All female mammals with 2 X chromosomes balance gene expression with males having only 1 X by inactivating one of their X chromosomes (X chromosome inactivation [XCI]). Analysis of XCI in females offers the opportunity to investigate both X-linked genetic factors and early embryonic development that may contribute to alcoholism. Increases in the prevalence of skewing of XCI in women with alcoholism could implicate biological risk factors. METHODS The pattern of XCI was examined in DNA isolated in blood from 44 adult women meeting DSM-IV criteria for an alcohol use disorder and 45 control women with no known history of alcohol abuse or dependence. XCI status was determined by analyzing digested and undigested polymerase chain reaction (PCR) products of the polymorphic androgen receptor (AR) gene located on the X chromosome. Subjects were categorized into 3 groups based upon the degree of XCI skewness: random (50:50 to 64:36%), moderately skewed (65:35 to 80:20%), and highly skewed (>80:20%). RESULTS XCI status from informative women with alcoholism was found to be random in 59% (n = 26), moderately skewed in 27% (n = 12), or highly skewed in 14% (n = 6). Control subjects showed 60, 29, and 11%, respectively. The distribution of skewed XCI observed among women with alcoholism did not differ statistically from that of control subjects (χ(2) test = 0.14, 2 df, p = 0.93). CONCLUSIONS Our data did not support an increase in XCI skewness among women with alcoholism or implicate early developmental events associated with embryonic cell loss or unequal (nonrandom) expression of X-linked gene(s) or defects in alcoholism among women.
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Affiliation(s)
- Ann M Manzardo
- Department of Psychiatry, Kansas University Medical Center, Kansas City, USA.
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23
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Blom RM, Samuels JF, Riddle MA, Bienvenu OJ, Grados MA, Reti IM, Eaton WW, Liang KY, Nestadt G. Association between a serotonin transporter promoter polymorphism (5HTTLPR) and personality disorder traits in a community sample. J Psychiatr Res 2011; 45:1153-9. [PMID: 21450307 PMCID: PMC3128677 DOI: 10.1016/j.jpsychires.2011.03.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/21/2011] [Accepted: 03/03/2011] [Indexed: 12/16/2022]
Abstract
BACKGROUND The serotonin transporter (SERT) polymorphism (5HTTLPR) has been reported to be associated with several psychiatric conditions. Specific personality disorders could be intermediate factors in the known relationship between 5HTTLPR and psychiatric disorders. This is the first study to test the association between this polymorphism and dimensions of all DSM-IV personality disorders in a community sample. METHODS 374 white participants were assessed by clinical psychologists using the International Personality Disorder Examination (IPDE). Associations between dimensions of each DSM-IV personality disorder and the long (l) and short (s) alleles of the 5HTTLPR were evaluated using non-parametric tests and regression models. RESULTS The s allele of the 5HTTLPR polymorphism was significantly associated with higher avoidant personality trait scores in the whole sample. Males with the s allele had a significantly lower likelihood of higher obsessive-compulsive personality disorder (OCPD) trait scores, whereas females with the s allele were likely to have higher OCPD personality trait scores. CONCLUSION This paper provides preliminary data on the relationship between personality disorders and the 5HTTLPR polymorphism. The relationship of the s allele and avoidant PD is consistent with findings of a nonspecific relationship of this polymorphism to anxiety and depressive disorders. Concerning the unusual sexual dimorphic result with OCPD, several hypotheses are presented. These findings need further replication, including a more detailed study of additional variants in SERT.
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Affiliation(s)
- Rianne M. Blom
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Jack F. Samuels
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark A. Riddle
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - O. Joseph Bienvenu
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Marco A. Grados
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Irving M. Reti
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - William W. Eaton
- Department of Mental Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kung-Yee Liang
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taiwan
| | - Gerald Nestadt
- Department of Psychiatry and Behavioral Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA,Corresponding author: Gerald Nestadt, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 113, Baltimore, MD 21287, USA, Phone: 410-614-4942 Fax: 410-614-8137,
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Pies R. How To Eliminate Narcissism Overnight: DSM-V and the Death of Narcissistic Personality Disorder. INNOVATIONS IN CLINICAL NEUROSCIENCE 2011; 8:23-27. [PMID: 21468294 PMCID: PMC3071092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition appears likely to eliminate the diagnosis of narcissistic personality disorder. There are significant problems with the discriminant validity of the current narcissistic personality disorder critiera set; furthermore, the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition's narrow focus on "grandiosity" probably contributes to the wide disparity between low narcissistic personality disorder prevalence rates in epidemiological studies and high rates of narcissistic personality disorder in clinical practice. Nevertheless, the best course of action may be to refine the narcissistic personality disorder criteria, followed by careful field testing and a search for biomarkers, rather than wholesale elimination of the narcissistic personality disorder category. The construct of "malignant narcissism" is also worthy of more intense empirical investigation.
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Affiliation(s)
- Ronald Pies
- Dr. Pies is Professor of Psychiatry at SUNY Upstate Medical University, Syracuse, New York, and Clinical Professor of Psychiatry at Tufts University School of Medicine, Boston, Massachusetts
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