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Lawrence JM, Foote IF, Breunig S, Schaffer LS, Mallard TT, Grotzinger AD. Shared Genetic Liability across Systems of Psychiatric and Physical Illness. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.08.02.24311427. [PMID: 39132481 PMCID: PMC11312649 DOI: 10.1101/2024.08.02.24311427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Epidemiological literature has shown that there are extensive comorbidity patterns between psychiatric and physical illness. However, our understanding of the multivariate systems of relationships underlying these patterns is poorly understood. Using Genomic SEM and Genomic E-SEM, an extension for genomic exploratory factor analysis that we introduce and validate, we evaluate the extent to which latent genomic factors from eight domains, encompassing 76 physical outcomes across 1.9 million cases, evince genetic overlap with previously identified psychiatric factors. We find that internalizing, neurodevelopmental, and substance use factors are broadly associated with increased genetic risk sharing across all physical illness domains. Conversely, we find that a compulsive factor is protective against circulatory and metabolic illness, whereas genetic risk sharing between physical illness factors and psychotic/thought disorders was limited. Our results reveal pervasive risk sharing between specific groups of psychiatric and physical conditions and call into question the bifurcation of psychiatric and physical conditions.
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Affiliation(s)
- Jeremy M. Lawrence
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO
- Department of Psychology and Neuroscience, University of Colorado Boulder, CO
| | - Isabelle F. Foote
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO
| | - Sophie Breunig
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO
- Department of Psychology and Neuroscience, University of Colorado Boulder, CO
| | - Lukas S. Schaffer
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO
- Department of Psychology and Neuroscience, University of Colorado Boulder, CO
| | - Travis T. Mallard
- Center for Precision Psychiatry, Department of Psychiatry, Massachusetts General Hospital, Boston, MA
- Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Andrew D. Grotzinger
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO
- Department of Psychology and Neuroscience, University of Colorado Boulder, CO
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2
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Zhang W, He T, Hinshaw S, Chi P, Lin X. Longitudinal relationship between oppositional defiant disorder symptoms and attention-deficit/hyperactivity disorder symptoms in Chinese children: insights from cross-lagged panel network analyses. Eur Child Adolesc Psychiatry 2024; 33:2557-2570. [PMID: 38151686 DOI: 10.1007/s00787-023-02347-w] [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: 12/27/2022] [Accepted: 11/29/2023] [Indexed: 12/29/2023]
Abstract
Oppositional defiant disorder (ODD) and attention-deficit/hyperactivity disorder (ADHD) are two of the most common childhood mental disorders, and they have substantial comorbidity. The developmental precursor model has long been widely used to explain the mechanisms of comorbidity between ODD and ADHD, however whether it is equally effective at the symptomatic level is unclear. Therefore, this study aimed to (a) examine the stability of the ODD and ADHD comorbidity network in a longitudinal sample of high-risk children in China; and (b) examine the longitudinal relationship between the ODD and ADHD symptom networks based on a developmental precursor model. Two hundred sixty-three Chinese children aged 6 to 13 years with ODD and/or ADHD were assessed for symptoms of ODD and ADHD in two surveys conducted 1 year apart. We used data from these two time points to construct two cross-sectional networks and a cross-lagged panel network (CLPN) to explore the symptom network for comorbidity of ODD and ADHD. The analysis shows that: (1) the two cross-sectional networks are highly similar in terms of structure, existence of edges, centrality estimates, and the invariance test shows that there is no significant difference between them. The symptoms "follow through", "interrupts/intrudes", "difficulty playing quietly" and "concentration" had the highest expected influence centrality at both time points. (2) Combined with the results of the cross-sectional and cross-lagged networks, we found that "annoy" and "blame" are potential bridge symptoms between the ODD and ADHD symptom networks. The symptom "annoy" forms a reciprocal predictive relationship with "interrupts/intrudes", while "blame" unidirectionally predicts "close attention". In addition, we found that "vindictive" predicted numerous ADHD symptoms, whereas "angry" was predicted by numerous ADHD symptoms. The findings emphasize the broad predictive relationship between ODD and ADHD symptoms with each other, and that ODD symptoms may lead to activation of the ADHD symptom network and vice versa. These findings suggest that the developmental precursor model at the symptom level may partially explain the comorbidity mechanisms of ODD and ADHD, and future studies should further investigate the underlying multiple mechanisms.
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Affiliation(s)
- Wenrui Zhang
- Institute of Developmental Psychology, Faculty of Psychology, Beijing Normal University, Beijing, 100875, China
| | - Ting He
- Institute of Developmental Psychology, Faculty of Psychology, Beijing Normal University, Beijing, 100875, China
| | - Stephen Hinshaw
- Department of Psychology, University of California, Berkeley, CA, USA
| | - Peilian Chi
- Department of Psychology, University of Macau, Macau, China
| | - Xiuyun Lin
- Institute of Developmental Psychology, Faculty of Psychology, Beijing Normal University, Beijing, 100875, China.
- Beijing Key Laboratory of Applied Experimental Psychology, Faculty of Psychology, Beijing Normal University, Beijing, 100875, China.
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3
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Stein DJ, Nielsen K, Hartford A, Gagné-Julien AM, Glackin S, Friston K, Maj M, Zachar P, Aftab A. Philosophy of psychiatry: theoretical advances and clinical implications. World Psychiatry 2024; 23:215-232. [PMID: 38727058 PMCID: PMC11083904 DOI: 10.1002/wps.21194] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2024] Open
Abstract
Work at the intersection of philosophy and psychiatry has an extensive and influential history, and has received increased attention recently, with the emergence of professional associations and a growing literature. In this paper, we review key advances in work on philosophy and psychiatry, and their related clinical implications. First, in understanding and categorizing mental disorder, both naturalist and normativist considerations are now viewed as important - psychiatric constructs necessitate a consideration of both facts and values. At a conceptual level, this integrative view encourages moving away from strict scientism to soft naturalism, while in clinical practice this facilitates both evidence-based and values-based mental health care. Second, in considering the nature of psychiatric science, there is now increasing emphasis on a pluralist approach, including ontological, explanatory and value pluralism. Conceptually, a pluralist approach acknowledges the multi-level causal interactions that give rise to psychopathology, while clinically it emphasizes the importance of a broad range of "difference-makers", as well as a consideration of "lived experience" in both research and practice. Third, in considering a range of questions about the brain-mind, and how both somatic and psychic factors contribute to the development and maintenance of mental disorders, conceptual and empirical work on embodied cognition provides an increasingly valuable approach. Viewing the brain-mind as embodied, embedded and enactive offers a conceptual approach to the mind-body problem that facilitates the clinical integration of advances in both cognitive-affective neuroscience and phenomenological psychopathology.
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Affiliation(s)
- Dan J Stein
- South African Medical Research Council Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Kris Nielsen
- School of Psychology, Te Herenga Waka-Victoria University of Wellington, Wellington, New Zealand
| | - Anna Hartford
- South African Medical Research Council Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Anne-Marie Gagné-Julien
- Centre for Research in Ethics, Canada Research Chair in Epistemic Injustice and Agency, Université du Québec à Montréal, Montreal, Canada
| | - Shane Glackin
- Department of Sociology, Philosophy and Anthropology, University of Exeter, Exeter, UK
| | - Karl Friston
- Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, UK
| | - Mario Maj
- Department of Psychiatry, University of Campania "L. Vanvitelli", Naples, Italy
| | - Peter Zachar
- Department of Psychology, Auburn University Montgomery, Montgomery, AL, USA
| | - Awais Aftab
- Department of Psychiatry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
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4
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Coulson RL, Mourrain P, Wang GX. The intersection of sleep and synaptic translation in synaptic plasticity deficits in neurodevelopmental disorders. J Comp Physiol B 2024; 194:253-263. [PMID: 38396062 PMCID: PMC11233386 DOI: 10.1007/s00360-023-01531-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/29/2023] [Accepted: 12/19/2023] [Indexed: 02/25/2024]
Abstract
Individuals with neurodevelopmental disorders experience persistent sleep deficits, and there is increasing evidence that sleep dysregulation is an underlying cause, rather than merely an effect, of the synaptic and behavioral defects observed in these disorders. At the molecular level, dysregulation of the synaptic proteome is a common feature of neurodevelopmental disorders, though the mechanism connecting these molecular and behavioral phenotypes is an ongoing area of investigation. A role for eIF2α in shifting the local proteome in response to changes in the conditions at the synapse has emerged. Here, we discuss recent progress in characterizing the intersection of local synaptic translation and sleep and propose a reciprocal mechanism of dysregulation in the development of synaptic plasticity defects in neurodevelopmental disorders.
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Affiliation(s)
- Rochelle L Coulson
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Philippe Mourrain
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
- INSERM 1024, Ecole Normale Supérieure, Paris, France
| | - Gordon X Wang
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA.
- Wu Tsai Neuroscience Institute, Stanford University, Stanford, CA, USA.
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López-Silva P, Harrow M, Jobe TH, Tufano M, Harrow H, Rosen C. 'Are these my thoughts?': A 20-year prospective study of thought insertion, thought withdrawal, thought broadcasting, and their relationship to auditory verbal hallucinations. Schizophr Res 2024; 265:46-57. [PMID: 35945121 DOI: 10.1016/j.schres.2022.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/27/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022]
Abstract
The co-occurrence of delusions and other symptoms at the onset of psychosis is a challenge for theories about the aetiology of psychosis. This paper explores the relatedness of delusions about the experience of thinking (thought insertion, thought withdrawal, and thought broadcasting) and auditory verbal hallucinations by describing their trajectories over a 20-year period in individuals diagnosed with schizophrenia, affective and other psychosis, and unipolar depression nonpsychosis. The sample consisted of 407 participants who were recruited at index hospitalization and evaluated over six follow-ups over 20 years. The symptom structure associated with thought insertion included auditory verbal hallucinations, somatic hallucinations, other hallucinations, delusions of thought-dissemination, delusions of control, delusion of self-depreciation, depersonalization and anxiety. The symptom constellation of thought withdrawal included somatic hallucinations, other hallucinations, delusions of thought dissemination, delusions of control, sexual delusions, depersonalization, negative symptoms, depression, and anxiety. The symptom constellation of thought broadcasting included auditory verbal hallucinations, somatic hallucinations, delusions of thought-dissemination, delusion of self-depreciation, fantastic delusions, sexual delusions, and depersonalization. Auditory verbal hallucinations and delusions of self-depreciation were significantly associated with both thought insertion and thought broadcasting. Thought insertion and thought withdrawal were significantly associated with other hallucinations, delusions of control, and anxiety; thought withdrawal and thought broadcasting were significantly related to sexual delusions. We hypothesize that specific symptom constellations over time might be explained as the product of pseudo-coherent realities created to give meaning to the experience of the world and the self of individuals in psychosis based on both prior top-down and ongoing bottom-up elements.
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Affiliation(s)
- Pablo López-Silva
- Faculty of Social Sciences, School of Psychology, Universidad de Valparaíso, Chile
| | - Martin Harrow
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Thomas H Jobe
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Michele Tufano
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Helen Harrow
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Cherise Rosen
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States.
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Melo-Fonseca F, Gasik M, Cruz A, Moreira D, S. Silva F, Miranda G, Mendes Pinto I. Engineering a Hybrid Ti6Al4V-Based System for Responsive and Consistent Osteogenesis. ACS OMEGA 2024; 9:8985-8994. [PMID: 38434873 PMCID: PMC10905591 DOI: 10.1021/acsomega.3c07232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/17/2023] [Accepted: 01/05/2024] [Indexed: 03/05/2024]
Abstract
As the aging population increases worldwide, the incidence of musculoskeletal diseases and the need for orthopedic implants also arise. One of the most desirable goals in orthopedic reconstructive therapies is de novo bone formation. Yet, reproducible, long-lasting, and cost-effective strategies for implants that strongly induce osteogenesis are still in need. Nanoengineered titanium substrates (and their alloys) are among the most used materials in orthopedic implants. Although having high biocompatibility, titanium alloys hold a low bioactivity profile. The osteogenic capacity and osseointegration of Ti-based implantable systems are limited, as they critically depend on the body-substrate interactions defined by blood proteins adsorbed into implant surfaces that ultimately lead to the recruitment, proliferation, and differentiation of mesenchymal stem cells (MSCs) to comply bone formation and regeneration. In this work, a hybrid Ti6Al4V system combining micro- and nanoscale modifications induced by hydrothermal treatment followed by functionalization with a bioactive compound (fibronectin derived from human plasma) is proposed, aiming for bioactivity improvement. An evaluation of the biological activity and cellular responses in vitro with respect to bone regeneration indicated that the integration of morphological and chemical modifications into Ti6Al4V surfaces induces the osteogenic differentiation of MSCs to improve bone regeneration by an enhancement of mineral matrix formation that accelerates the osseointegration process. Overall, this hybrid system has numerous competitive advantages over more complex treatments, including reproducibility, low production cost, and potential for improved long-term maintenance of the implant.
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Affiliation(s)
- Francisca Melo-Fonseca
- Center
for MicroElectroMechanical Systems (CMEMS-UMinho), University of Minho, Guimarães 4800-058, Portugal
- LABBELS—Associate
Laboratory, Braga, Guimarães 4710-057, Portugal
- International
Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
| | - Michael Gasik
- School
of Chemical Engineering, Aalto University
Foundation, Espoo 00076, Finland
| | - Andrea Cruz
- International
Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
| | - Daniel Moreira
- Institute
for Research and Innovation in Health (i3S), Porto 4200-135, Portugal
| | - Filipe S. Silva
- Center
for MicroElectroMechanical Systems (CMEMS-UMinho), University of Minho, Guimarães 4800-058, Portugal
- LABBELS—Associate
Laboratory, Braga, Guimarães 4710-057, Portugal
| | - Georgina Miranda
- CICECO, Aveiro
Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Aveiro 3810-193, Portugal
| | - Inês Mendes Pinto
- International
Iberian Nanotechnology Laboratory (INL), Braga 4715-330, Portugal
- Institute
for Research and Innovation in Health (i3S), Porto 4200-135, Portugal
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Chesterfield A, Harvey J, Hendrie C, Wilkinson S, Vera San Juan N, Bell V. Meaning and role of functional-organic distinction: a study of clinicians in psychiatry and neurology services. MEDICAL HUMANITIES 2024; 50:170-178. [PMID: 37968099 DOI: 10.1136/medhum-2023-012667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/17/2023] [Indexed: 11/17/2023]
Abstract
The functional-organic distinction attempts to differentiate disorders with diagnosable biological causes from those without and is a central axis on which diagnoses, medical specialities and services are organised. Previous studies report poor agreement between clinicians regarding the meanings of the terms and the conditions to which they apply, as well as noting value-laden implications of relevant diagnoses. Consequently, we aimed to understand how clinicians working in psychiatry and neurology services navigate the functional-organic distinction in their work. Twenty clinicians (10 physicians, 10 psychologists) working in psychiatry and neurology services participated in semistructured interviews that were analysed applying a constructivist grounded theory approach. The distinction was described as often incongruent with how clinicians conceptualise patients' problems. Organic factors were considered to be objective, unambiguously identifiable and clearly causative, whereas functional causes were invisible and to be hypothesised through thinking and conversation. Contextual factors-including cultural assumptions, service demands, patient needs and colleagues' views-were key in how the distinction was deployed in practice. The distinction was considered theoretically unsatisfactory, eventually to be superseded, but clinical decision making required it to be used strategically. These uses included helping communicate medical problems, navigating services, hiding meaning by making psychological explanations more palatable, tackling stigma, giving hope, and giving access to illness identity. Clinicians cited moral issues at both individual and societal levels as integral to the conceptual basis and deployment of the functional-organic distinction and described actively navigating these as part of their work. There was a considerable distance between the status of the functional-organic distinction as a sound theoretical concept generalisable across conditions and its role as a gatekeeping tool within the structures of healthcare. Ambiguity and contradictions were considered as both obstacles and benefits when deployed in practice and strategic considerations were important in deciding which to lean on.
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Affiliation(s)
- Alice Chesterfield
- Clinical, Educational and Health Psychology, University College London, London, UK
| | - Jordan Harvey
- Clinical, Educational and Health Psychology, University College London, London, UK
| | - Callum Hendrie
- Community Support Work Service, Headway East London, London, UK
| | - Sam Wilkinson
- Dept of Sociology, Philosophy and Anthropology, Exeter University, London, UK
| | - Norha Vera San Juan
- Clinical, Educational and Health Psychology, University College London, London, UK
| | - Vaughan Bell
- Clinical, Educational and Health Psychology, University College London, London, UK
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
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Bolton D. A revitalized biopsychosocial model: core theory, research paradigms, and clinical implications. Psychol Med 2023; 53:7504-7511. [PMID: 37681273 PMCID: PMC10755226 DOI: 10.1017/s0033291723002660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 05/31/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
The biopsychosocial model (BPSM) was proposed by George Engel in 1977 as an improvement to the biomedical model (BMM), to take account of psychological and social as well as biological factors relevant to health and disease. Since then the BPSM has had a mixed reputation, as the overarching framework for psychiatry, perhaps for medicine generally, while also being criticized for being theoretically and empirically vacuous. Over the past few decades, substantial evidence has accumulated supporting the BPSM but its theory remains less clear. The first part of this paper reviews recent well-known, general theories in the relevant sciences that can provide a theoretical framework of the model, constituting a revitalized BPSM capable of theorizing causal interactions within and between biological, psychological, and social domains. Fundamental concepts in this new framework include causation as regulation and dysfunction as dysregulation. Associated research paradigms are outlined in Part 2. Research in psychological therapies and social epidemiology are major examples of programs that have produced results anomalous for the BMM and consistent with the BPSM. Theorized models of causal mechanisms enrich empirical data and two biopsychosocial examples are models of chronic stress and pain perception. Clinical implications are reviewed in Part 3. The BPSM accommodates psychological and social as well as biological treatment effects evident in the clinical trials literature. Personal, interpersonal, and institutional aspects of clinical care are out of the scope of the BMM, assigned to the art of healthcare rather than the science, but can be accommodated and theorized in the BPSM.
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Affiliation(s)
- Derek Bolton
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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Greener MR, Storr SJ. Conflicting theories on addiction aetiology and the strengths and limitations of substance use disorder disease modelling. Front Mol Neurosci 2023; 16:1166852. [PMID: 37745284 PMCID: PMC10511750 DOI: 10.3389/fnmol.2023.1166852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
A lack of cross-disciplinary unanimity prevails within addiction research. Theories conceptualizing addiction through the three-stage brain disease model contest other theories that substance use disorder is of behavioural or genetic origin. The reverberations of this lack of consensus are noticeable throughout addiction research and within the foundations of disease modelling. The availability of methods to investigate substance use disorder are inconsistent and sometimes unrepresentative. This review discusses theories of addiction aetiology, available models for addiction research and the strengths and limitations of current practical experimental methods of study.
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Affiliation(s)
- Megan R. Greener
- Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
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10
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Kleinstäuber M, Schröder A, Daehler S, Pallesen KJ, Rask CU, Sanyer M, Van den Bergh O, Weinreich Petersen M, Rosmalen JGM. Aetiological Understanding of Fibromyalgia, Irritable Bowel Syndrome, Chronic Fatigue Syndrome and Classificatory Analogues: A Systematic Umbrella Review. CLINICAL PSYCHOLOGY IN EUROPE 2023; 5:e11179. [PMID: 38356902 PMCID: PMC10863637 DOI: 10.32872/cpe.11179] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 08/27/2023] [Indexed: 02/16/2024] Open
Abstract
Background This umbrella review systematically assesses the variety and relative dominance of current aetiological views within the scientific literature for the three most investigated symptom-defined functional somatic syndromes (FSS) and their classificatory analogues within psychiatry and psychology. Method An umbrella review of narrative and systematic reviews with and without meta-analyses based on a search of electronic databases (PubMed, Web of Science, Embase, PsychINFO) was conducted. Eligible reviews were published in English, focused on research of any kind of aetiological factors in adults diagnosed with fibromyalgia syndrome (FMS), irritable bowel syndrome (IBS), chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME), and somatic symptom disorder (SSD)/somatoform disorder (SFD). Results We included 452 reviews (132 systematic reviews including meta-analyses, 133 systematic reviews, 197 narrative reviews), of which 132 (29%) focused on two or more of the investigated health conditions simultaneously. Across diagnoses, biological factors were addressed in 90% (k = 405), psychological in 33% (k = 150), social in 12% (k = 54), and healthcare factors in 5% (k = 23) of the reviews. The methodological quality of the included systematic reviews (k = 255) was low (low/critically low: 41% [k = 104]; moderate: 49% [k = 126]; high quality: 10% [k = 25]). The high-quality systematic reviews suggest that deficient conditioned pain modulation, genetic factors, changes in the immune, endocrinological, gastrointestinal, cardiovascular, and nervous system, and psychosocial factors such as sexual abuse and pain catastrophizing increase the risk for FSS. Conclusion Only very few systematic reviews have used comprehensive, biopsychosocial disease models to guide the selection of aetiological factors in FSS research. Future research should strive for higher scientific standards and broaden its perspective on these health conditions.
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Affiliation(s)
- Maria Kleinstäuber
- Department of Psychology, Emma Eccles Jones College of Education and Human Services, Utah State University, Logan, UT, USA
| | - Andreas Schröder
- The Research Clinic for Functional Disorders and Psychosomatics, Aarhus University Hospital, Aarhus, Denmark
| | - Sarah Daehler
- Department of Psychology, Emma Eccles Jones College of Education and Human Services, Utah State University, Logan, UT, USA
| | | | - Charlotte U. Rask
- The Research Clinic for Functional Disorders and Psychosomatics, Aarhus University Hospital, Aarhus, Denmark
- Department of Child and Adolescent Psychiatry, Psychiatry, Aarhus University Hospital, Aarhus, Denmark
| | - Mathias Sanyer
- Department of Psychology, Emma Eccles Jones College of Education and Human Services, Utah State University, Logan, UT, USA
| | | | - Marie Weinreich Petersen
- The Research Clinic for Functional Disorders and Psychosomatics, Aarhus University Hospital, Aarhus, Denmark
| | - Judith G. M. Rosmalen
- University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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11
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Gough J. Understanding understanding in psychiatry. HISTORY OF PSYCHIATRY 2023; 34:249-261. [PMID: 37092812 PMCID: PMC10443229 DOI: 10.1177/0957154x231163275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Originally put forward to defend history from the encroachment of physics, the distinction between understanding and explanation was built into the foundations of Karl Jaspers' 'phenomenological' psychiatry, and it is revised, used and defended by many still working in that tradition. On the face of it, this is rather curious. I examine what this notion of 'understanding' amounts to, why it entered and remains influential in psychiatry, and what insights for contemporary psychiatry are buried in the notion. I argue that it is unhelpfully associated with the view that the mental is epistemologically and methodologically autonomous, but that it nevertheless highlights an important lacuna in many views of psychiatry and the scientific study of humans more generally.
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12
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Fried EI, Proppert RKK, Rieble CL. Building an Early Warning System for Depression: Rationale, Objectives, and Methods of the WARN-D Study. CLINICAL PSYCHOLOGY IN EUROPE 2023; 5:e10075. [PMID: 38356901 PMCID: PMC10863640 DOI: 10.32872/cpe.10075] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 07/02/2023] [Indexed: 02/16/2024] Open
Abstract
Background Depression is common, debilitating, often chronic, and affects young people disproportionately. Given that only 50% of patients improve under initial treatment, experts agree that prevention is the most effective way to change depression's global disease burden. The biggest barrier to successful prevention is to identify individuals at risk for depression in the near future. To close this gap, this protocol paper introduces the WARN-D study, our effort to build a personalized early warning system for depression. Method To develop the system, we follow around 2,000 students over 2 years. Stage 1 comprises an extensive baseline assessment in which we collect a broad set of predictors for depression. Stage 2 lasts 3 months and zooms into participants' daily experiences that may predict depression; we use smartwatches to collect digital phenotype data such as sleep and activity, and we use a smartphone app to query participants about their experiences 4 times a day and once every Sunday. In Stage 3, we follow participants for 21 months, assessing transdiagnostic outcomes (including stress, functional impairment, anxiety, and depression) as well as additional predictors for future depression every 3 months. Collected data will be utilized to build a personalized prediction model for depression onset. Discussion Overall, WARN-D will function similarly to a weather forecast, with the core difference that one can only seek shelter from a thunderstorm and clean up afterwards, while depression may be successfully prevented before it occurs.
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Affiliation(s)
- Eiko I. Fried
- Department of Clinical Psychology, Leiden University, Leiden, The Netherlands
| | | | - Carlotta L. Rieble
- Department of Clinical Psychology, Leiden University, Leiden, The Netherlands
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13
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Cohen BM, Öngür D. The need for evidence-based updating of ICD and DSM models of psychotic and mood disorders. Mol Psychiatry 2023; 28:1836-1838. [PMID: 36697753 DOI: 10.1038/s41380-023-01967-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/09/2023] [Accepted: 01/16/2023] [Indexed: 01/26/2023]
Affiliation(s)
- Bruce M Cohen
- Robertson Steele Professor of Psychiatry, Harvard Medical School, Boston, MA, USA.
- President and Psychiatrist in Chief, Emeritus, McLean Hospital, 115 Mill St., Belmont, MA, 02478, USA.
| | - Dost Öngür
- William P. and Henry B. Test Professor of Psychiatry, Harvard Medical School, Boston, MA, USA
- Chief, Division of Psychotic Disorders, McLean Hospital, 115 Mill St., Belmont, MA, USA
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14
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Valkovskaya M, Hassan A, Zartaloudi E, Hussain F, Umar M, Khizar B, Khattak I, Gill SA, Khan SUDA, Dogar IA, Mustafa AB, Ansari MA, Qalb I Hyder S, Ali M, Ilyas N, Channar P, Mughal N, Channa S, Mufti K, Mufti AA, Hussain MI, Shafiq S, Tariq M, Khan MK, Chaudhry ST, Choudhary AR, Ali MN, Ali G, Hussain A, Rehman M, Ahmad N, Farooq S, Naeem F, Nasr T, Lewis G, Knowles JA, Ayub M, Kuchenbaecker K. Study protocol of DIVERGE, the first genetic epidemiological study of major depressive disorder in Pakistan. Psychiatr Genet 2023; 33:69-78. [PMID: 36538573 PMCID: PMC9997631 DOI: 10.1097/ypg.0000000000000333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Globally, 80% of the burdenof major depressive disorder (MDD) pertains to low- and middle-income countries. Research into genetic and environmental risk factors has the potential to uncover disease mechanisms that may contribute to better diagnosis and treatment of mental illness, yet has so far been largely limited to participants with European ancestry from high-income countries. The DIVERGE study was established to help overcome this gap and investigate genetic and environmental risk factors for MDD in Pakistan. METHODS DIVERGE aims to enrol 9000 cases and 4000 controls in hospitals across the country. Here, we provide the rationale for DIVERGE, describe the study protocol and characterise the sample using data from the first 500 cases. Exploratory data analysis is performed to describe demographics, socioeconomic status, environmental risk factors, family history of mental illness and psychopathology. RESULTS AND DISCUSSION Many participants had severe depression with 74% of patients who experienced multiple depressive episodes. It was a common practice to seek help for mental health struggles from faith healers and religious leaders. Socioeconomic variables reflected the local context with a large proportion of women not having access to any education and the majority of participants reporting no savings. CONCLUSION DIVERGE is a carefully designed case-control study of MDD in Pakistan that captures diverse risk factors. As the largest genetic study in Pakistan, DIVERGE helps address the severe underrepresentation of people from South Asian countries in genetic as well as psychiatric research.
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Affiliation(s)
| | - Arsalan Hassan
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Eirini Zartaloudi
- Institute of Clinical Trials and Methodology, University College London, London, UK
| | - Fahad Hussain
- Lahore Institute of Research and Development, Lahore
| | - Muhammad Umar
- Lahore Institute of Research and Development, Lahore
| | - Bakht Khizar
- Lahore Institute of Research and Development, Lahore
| | | | | | | | | | - Ali Burhan Mustafa
- Department of Psychiatry and Behavioural Sciences, Sheikh Zayed Medical College/Hospital, Rahim Yar Khan
| | - Moin Ahmed Ansari
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Syed Qalb I Hyder
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Muhammad Ali
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Nilofar Ilyas
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Parveen Channar
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Nazish Mughal
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | - Sumera Channa
- Sir Cowasjee Jehangir Institute of Psychiatric and Behavioral Sciences, Hyderabad
| | | | | | | | | | | | | | | | | | | | - Gohar Ali
- Department of Psychiatry, Saidu Teaching Hospital
| | | | | | - Noman Ahmad
- Punjab Institute of Mental Health (PIMH), Lahore, Pakistan
| | - Saeed Farooq
- School of Medicine, Keele University, Keele
- Innovation Department, Midlands Partnership NHS Foundation Trust, Staffotdshire, UK
| | - Farooq Naeem
- Department of Psychiatry, University of Toronto
- Center for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Tanveer Nasr
- Lahore Institute of Research and Development, Lahore
| | - Glyn Lewis
- Division of Psychiatry, University College London, London, UK
| | - James A. Knowles
- Human Genetics Institute of New Jersey (HGINJ), Rutgers University, New Brunswick, New Jersey, USA
| | - Muhammad Ayub
- Division of Psychiatry, University College London, London, UK
| | - Karoline Kuchenbaecker
- Division of Psychiatry, University College London, London, UK
- UCL Genetics Institute, University College London, London, UK
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15
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BATMAZ S. Transdiagnostic Cognitive Behavioral Psychotherapy: Unified Protocol as an Example. PSIKIYATRIDE GUNCEL YAKLASIMLAR - CURRENT APPROACHES IN PSYCHIATRY 2023. [DOI: 10.18863/pgy.1064590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The fact that there are many limitations of the current classification systems led to the emergence of transdiagnostic approaches (TA) that focus on the common psychopathological processes underlying disorders rather than categorical diagnoses. TA focuses on the underlying common psychopathological processes in the emergence and persistence of mental disorders. Thus, even if the disorders are categorically diagnosed differently, it can be determined how they overlap or separate with each other. TA aims to treat mental disorders using these aspects. TA has a flexible and modular structure that can be easily integrated into cognitive behavioral therapies. The rest of this review will focus on the Unified Protocol (UP), one of the most popular TA examples. The main purpose of the UP is to enable patients to recognize their feelings and give more adaptive reactions to their negative emotions. Accordingly, UP consists of eight modules. The modules can usually be completed in a total of 11 - 17 weeks. Each 50 to 60-minute individual session is held once a week. If necessary, changes can be made to the number or the frequency of sessions allocated to modules. The goals of each module of the UP and the treatment approaches towards these goals allow a very clearly defined approach. For this reason, there is a need for a detailed evaluation, conceptualization and treatment plan before the UP is put into practice. We hope that mental health professionals from Turkey will contribute to the developments in the UP.
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Harris KM, Wang L, Mu GM, Lu Y, So C, Zhang W, Ma J, Liu K, Wang W, Zhang MWB, Ho RC. Measuring the suicidal mind: The 'open source' Suicidality Scale, for adolescents and adults. PLoS One 2023; 18:e0282009. [PMID: 36821531 PMCID: PMC9949661 DOI: 10.1371/journal.pone.0282009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 01/30/2023] [Indexed: 02/24/2023] Open
Abstract
Clinicians are expected to provide accurate and useful mental health assessments, sometimes in emergency settings. The most urgent challenge may be in calculating suicide risk. Unfortunately, existing instruments often fail to meet requirements. To address this situation, we used a sustainable scale development approach to create a publicly available Suicidality Scale (SS). Following a critical review of current measures, community input, and panel discussions, an international item pool survey included 5,115 English-speaking participants aged 13-82 years. Revisions were tested with two follow-up cross-sectional surveys (Ns = 814 and 626). Pool items and SS versions were critically examined through item response theory, hierarchical cluster, factor and bifactor analyses, resulting in a unidimensional eight-item scale. Psychometric properties were high (loadings > .77; discrimination > 2.2; test-retest r = .87; internal consistency, ω = .96). Invariance checks were satisfied for age, gender, ethnicity, rural/urban residence, first language, self-reported psychiatric diagnosis and suicide attempt history. The SS showed stronger psychometric properties, and significant differences in bivariate associations with depressive symptoms, compared with included suicide measures. The 'open source' Suicidality Scale represents a significant step forward in accurate assessment for people aged 13+, and diverse populations. This study provides an example of sustainable scale development utilizing community input, emphasis on strong psychometric evidence from diverse samples, and a free-to-use license allowing instrument revisions. These methods can be used to develop a wide variety of psychosocial instruments that can benefit clinicians, researchers, and the public.
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Affiliation(s)
- Keith M. Harris
- School of Psychology, Charles Sturt University, Bathurst, New South Wales, Australia
- School of Psychology, University of Queensland, St Lucia, Queensland, Australia
| | - Lu Wang
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | - Guanglun M. Mu
- Education Futures, University of South Australia, Adelaide, South Australia, Australia
| | - Yanxia Lu
- Department of Medical Psychology and Ethics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | | | - Wei Zhang
- School of Medicine and Health Management, Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Jing Ma
- School of Politics and Public Administration, Zhengzhou University, Zhengzhou, Henan, China
| | - Kefei Liu
- Yale School of Medicine, Yale University, New Haven, Connecticut, United States of America
| | - Wei Wang
- Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Melvyn Wei-bin Zhang
- Biomedical Institute for Global Health Research and Technology, National University of Singapore, Singapore, Singapore
| | - Roger C. Ho
- Department of Psychological Medicine, National University of Singapore, Singapore, Singapore
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17
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Jefferson A. Are mental disorders brain disorders? – A precis. PHILOSOPHICAL PSYCHOLOGY 2023. [DOI: 10.1080/09515089.2023.2166822] [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: 01/15/2023]
Affiliation(s)
- Anneli Jefferson
- School of English, Communication and Philosophy, Cardiff University, Cardiff, UK
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18
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Dimitriadis Y. The complexity of the dialogue between psychoanalysis, neurosciences, and genetics. Front Psychiatry 2023; 14:1084642. [PMID: 36741112 PMCID: PMC9895852 DOI: 10.3389/fpsyt.2023.1084642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/06/2023] [Indexed: 01/22/2023] Open
Affiliation(s)
- Yorgos Dimitriadis
- Université Paris-Cité, Centre de Recherches Psychanalyse, Médecine et Société, Paris, France
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19
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Nierenberg AA. The Issue I Have With Mental Health Issues. Psychiatr Ann 2023. [DOI: 10.3928/00485713-20230106-01] [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: 01/28/2023]
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20
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Saxe GN, Bickman L, Ma S, Aliferis C. Mental health progress requires causal diagnostic nosology and scalable causal discovery. Front Psychiatry 2022; 13:898789. [PMID: 36458123 PMCID: PMC9705733 DOI: 10.3389/fpsyt.2022.898789] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 10/10/2022] [Indexed: 11/17/2022] Open
Abstract
Nine hundred and seventy million individuals across the globe are estimated to carry the burden of a mental disorder. Limited progress has been achieved in alleviating this burden over decades of effort, compared to progress achieved for many other medical disorders. Progress on outcome improvement for all medical disorders, including mental disorders, requires research capable of discovering causality at sufficient scale and speed, and a diagnostic nosology capable of encoding the causal knowledge that is discovered. Accordingly, the field's guiding paradigm limits progress by maintaining: (a) a diagnostic nosology (DSM-5) with a profound lack of causality; (b) a misalignment between mental health etiologic research and nosology; (c) an over-reliance on clinical trials beyond their capabilities; and (d) a limited adoption of newer methods capable of discovering the complex etiology of mental disorders. We detail feasible directions forward, to achieve greater levels of progress on improving outcomes for mental disorders, by: (a) the discovery of knowledge on the complex etiology of mental disorders with application of Causal Data Science methods; and (b) the encoding of the etiological knowledge that is discovered within a causal diagnostic system for mental disorders.
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Affiliation(s)
- Glenn N. Saxe
- Department of Child and Adolescent Psychiatry, New York University Grossman School of Medicine, New York, NY, United States
| | - Leonard Bickman
- Ontrak Health, Inc., Henderson, NV, United States
- Department of Psychology, Florida International University, Miami, FL, United States
| | - Sisi Ma
- Program in Data Science, Department of Medicine, Clinical and Translational Science Institute, Institute for Health Informatics, School of Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Constantin Aliferis
- Program in Data Science, Department of Medicine, Clinical and Translational Science Institute, Institute for Health Informatics, School of Medicine, University of Minnesota, Minneapolis, MN, United States
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21
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Blondino CT, Prom-Wormley EC. A network approach to substance use, internalizing, and externalizing comorbidity in U.S. adults. Addict Behav 2022; 134:107421. [PMID: 35878503 DOI: 10.1016/j.addbeh.2022.107421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 04/11/2022] [Accepted: 07/01/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Use of conventional cigarettes (CIG), alcohol, marijuana, and sedatives [i.e., benzodiazepines and barbiturates]) commonly co-occur with internalizing and externalizing disorders. It is unclear how these relationships extend to electronic cigarettes (ECIGs) and prescription drugs not prescribed (i.e., sedatives, tranquilizers, and painkillers [PDNP]), and whether they differ by gender. METHODS Adult data (N = 30,211) from Wave 1 (2013-2014) of the Population Assessment of Tobacco and Health Study were used to estimate a network of current or past-month use for six substances, experiencing four internalizing symptoms in the past month, and experiencing seven externalizing symptoms in the past month. Visual comparisons, global strength invariance, network structure invariance, and edge strength invariance were tested to detail substance use and internalizing/externalizing symptom networks. RESULTS Overall, networks were consistent between men and women. The strongest substance use/mental health symptom connections estimated as edge-weights (EW) were between marijuana with lying (EW = 0.60, 95% CI = 0.49; 0.70), marijuana with engaging in fights (EW = 0.54, 95% CI = 0.27; 0.81), PDNP with having trouble sleeping (EW = 0.53, 95% CI = 0.40; 0.66), and alcohol and impulsivity (EW = 0.48, 95% CI = 0.42; 0.53). DISCUSSION There were many weak connections throughout the substance use and internalizing/externalizing network. A few important connections were identified and encourage future study. In particular, PDNP was most strongly associated with internalizing symptoms. Marijuana, alcohol and PDNP use were most strongly associated with externalizing symptoms.
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Affiliation(s)
- Courtney T Blondino
- Division of Epidemiology, Department of Family Medicine and Population Health, Virginia Commonwealth University School of Medicine, 830 East Main Street, PO Box 980212, Richmond, VA 23298-0212, USA.
| | - Elizabeth C Prom-Wormley
- Division of Epidemiology, Department of Family Medicine and Population Health, Virginia Commonwealth University School of Medicine, 830 East Main Street, PO Box 980212, Richmond, VA 23298-0212, USA.
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22
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Fried EI. Studying Mental Health Problems as Systems, Not Syndromes. CURRENT DIRECTIONS IN PSYCHOLOGICAL SCIENCE 2022. [DOI: 10.1177/09637214221114089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite decades of clinical, sociopolitical, and research efforts, progress in understanding and treating mental health problems remains disappointing. I discuss two barriers that have contributed to a problematic oversimplification of mental illness. The first is diagnostic literalism, mistaking mental health problems (complex within-person processes) for the diagnoses by which they are classified (clinically useful idealizations to facilitate treatment selection and prognosis). The second is reductionism, the isolated study of individual elements of mental disorders. I propose conceptualizing people’s mental health states as outcomes emerging from complex systems of biological, psychological, and social elements and show that this systems perspective explains many robust phenomena, including variability within diagnoses, comorbidity among diagnoses, and transdiagnostic risk factors. It helps us understand diagnoses and reductionism as useful epistemological tools for describing the world, rather than ontological convictions about how the world is. It provides new lenses through which to study mental illness (e.g., attractor states, phase transitions), and new levers to treat them (e.g., early warning signals, novel treatment targets). Embracing the complexity of mental health problems requires opening our ivory towers to theories and methods from other fields with rich traditions, including network and systems sciences.
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Affiliation(s)
- Eiko I. Fried
- Department of Clinical Psychology, Leiden University
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23
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Ditmars HL, Logue MW, Toomey R, McKenzie RE, Franz CE, Panizzon MS, Reynolds CA, Cuthbert KN, Vandiver R, Gustavson DE, Eglit GML, Elman JA, Sanderson-Cimino M, Williams ME, Andreassen OA, Dale AM, Eyler LT, Fennema-Notestine C, Gillespie NA, Hauger RL, Jak AJ, Neale MC, Tu XM, Whitsel N, Xian H, Kremen WS, Lyons MJ. Associations between depression and cardiometabolic health: A 27-year longitudinal study. Psychol Med 2022; 52:3007-3017. [PMID: 33431106 PMCID: PMC8547283 DOI: 10.1017/s003329172000505x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Clarifying the relationship between depression symptoms and cardiometabolic and related health could clarify risk factors and treatment targets. The objective of this study was to assess whether depression symptoms in midlife are associated with the subsequent onset of cardiometabolic health problems. METHODS The study sample comprised 787 male twin veterans with polygenic risk score data who participated in the Harvard Twin Study of Substance Abuse ('baseline') and the longitudinal Vietnam Era Twin Study of Aging ('follow-up'). Depression symptoms were assessed at baseline [mean age 41.42 years (s.d. = 2.34)] using the Diagnostic Interview Schedule, Version III, Revised. The onset of eight cardiometabolic conditions (atrial fibrillation, diabetes, erectile dysfunction, hypercholesterolemia, hypertension, myocardial infarction, sleep apnea, and stroke) was assessed via self-reported doctor diagnosis at follow-up [mean age 67.59 years (s.d. = 2.41)]. RESULTS Total depression symptoms were longitudinally associated with incident diabetes (OR 1.29, 95% CI 1.07-1.57), erectile dysfunction (OR 1.32, 95% CI 1.10-1.59), hypercholesterolemia (OR 1.26, 95% CI 1.04-1.53), and sleep apnea (OR 1.40, 95% CI 1.13-1.74) over 27 years after controlling for age, alcohol consumption, smoking, body mass index, C-reactive protein, and polygenic risk for specific health conditions. In sensitivity analyses that excluded somatic depression symptoms, only the association with sleep apnea remained significant (OR 1.32, 95% CI 1.09-1.60). CONCLUSIONS A history of depression symptoms by early midlife is associated with an elevated risk for subsequent development of several self-reported health conditions. When isolated, non-somatic depression symptoms are associated with incident self-reported sleep apnea. Depression symptom history may be a predictor or marker of cardiometabolic risk over decades.
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Affiliation(s)
- Hillary L. Ditmars
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
| | - Mark W. Logue
- Research Service, VA Boston Healthcare System, Boston, MA
- Biomedical Genetics Program, Boston University School of Medicine, Boston, MA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA
| | - Rosemary Toomey
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
| | - Ruth E. McKenzie
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
- School of Education and Social Policy, Merrimack College, North Andover, MA, USA
| | - Carol E. Franz
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
| | - Matthew S. Panizzon
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
| | - Chandra A. Reynolds
- Department of Psychology, University of California, Riverside, Riverside, CA
| | - Kristy N. Cuthbert
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
| | - Richard Vandiver
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
| | | | - Graham M. L. Eglit
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
- VA San Diego Healthcare System, San Diego, CA
| | - Jeremy A. Elman
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
| | - Mark Sanderson-Cimino
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- San Diego State University/UC San Diego Joint Doctoral Program in Clinical Psychology
| | - McKenna E. Williams
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- San Diego State University/UC San Diego Joint Doctoral Program in Clinical Psychology
| | - Ole A. Andreassen
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine University of Oslo Oslo, Norway
- Division of Mental Health and Addiction, Oslo University Hospital Oslo, Oslo, Norway
| | - Anders M. Dale
- Department of Radiology, School of Medicine, University of California, San Diego, La Jolla, CA
- Department of Neurosciences, University of California, San Diego, La Jolla, CA
| | - Lisa T. Eyler
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Christine Fennema-Notestine
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Department of Radiology, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Nathan A. Gillespie
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA
| | - Richard L. Hauger
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA
| | - Amy J. Jak
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA
| | - Michael C. Neale
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA
- Department of Human and Molecular Genetics, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA
| | - Xin M. Tu
- Department of Family Medicine and Public Health, VA San Diego Healthcare System, San Diego, CA
| | - Nathan Whitsel
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Hong Xian
- Department of Epidemiology & Biostatistics, Saint Louis University College for Public Health & Social Justice
| | - William S. Kremen
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA
- Center for Behavior Genetics of Aging, University of California, San Diego, La Jolla, CA
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA
| | - Michael J. Lyons
- Department of Psychological and Brain Sciences, Boston University, Boston, MA
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Stein DJ, Shoptaw SJ, Vigo DV, Lund C, Cuijpers P, Bantjes J, Sartorius N, Maj M. Psychiatric diagnosis and treatment in the 21st century: paradigm shifts versus incremental integration. World Psychiatry 2022; 21:393-414. [PMID: 36073709 PMCID: PMC9453916 DOI: 10.1002/wps.20998] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Psychiatry has always been characterized by a range of different models of and approaches to mental disorder, which have sometimes brought progress in clinical practice, but have often also been accompanied by critique from within and without the field. Psychiatric nosology has been a particular focus of debate in recent decades; successive editions of the DSM and ICD have strongly influenced both psychiatric practice and research, but have also led to assertions that psychiatry is in crisis, and to advocacy for entirely new paradigms for diagnosis and assessment. When thinking about etiology, many researchers currently refer to a biopsychosocial model, but this approach has received significant critique, being considered by some observers overly eclectic and vague. Despite the development of a range of evidence-based pharmacotherapies and psychotherapies, current evidence points to both a treatment gap and a research-practice gap in mental health. In this paper, after considering current clinical practice, we discuss some proposed novel perspectives that have recently achieved particular prominence and may significantly impact psychiatric practice and research in the future: clinical neuroscience and personalized pharmacotherapy; novel statistical approaches to psychiatric nosology, assessment and research; deinstitutionalization and community mental health care; the scale-up of evidence-based psychotherapy; digital phenotyping and digital therapies; and global mental health and task-sharing approaches. We consider the extent to which proposed transitions from current practices to novel approaches reflect hype or hope. Our review indicates that each of the novel perspectives contributes important insights that allow hope for the future, but also that each provides only a partial view, and that any promise of a paradigm shift for the field is not well grounded. We conclude that there have been crucial advances in psychiatric diagnosis and treatment in recent decades; that, despite this important progress, there is considerable need for further improvements in assessment and intervention; and that such improvements will likely not be achieved by any specific paradigm shifts in psychiatric practice and research, but rather by incremental progress and iterative integration.
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Affiliation(s)
- Dan J. Stein
- South African Medical Research Council Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape TownCape TownSouth Africa
| | - Steven J. Shoptaw
- Division of Family MedicineDavid Geffen School of Medicine, University of California Los AngelesLos AngelesCAUSA
| | - Daniel V. Vigo
- Department of PsychiatryUniversity of British ColumbiaVancouverBCCanada
| | - Crick Lund
- Centre for Global Mental Health, Health Service and Population Research DepartmentInstitute of Psychiatry, Psychology and Neuroscience, King's College LondonLondonUK
| | - Pim Cuijpers
- Department of Clinical, Neuro and Developmental PsychologyAmsterdam Public Health Research Institute, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Jason Bantjes
- Alcohol, Tobacco and Other Drug Research UnitSouth African Medical Research CouncilCape TownSouth Africa
| | - Norman Sartorius
- Association for the Improvement of Mental Health ProgrammesGenevaSwitzerland
| | - Mario Maj
- Department of PsychiatryUniversity of Campania “L. Vanvitelli”NaplesItaly
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Werkhoven S, Anderson JH, Robeyns IAM. Who benefits from diagnostic labels for developmental disorders? Dev Med Child Neurol 2022; 64:944-949. [PMID: 35191027 PMCID: PMC9306602 DOI: 10.1111/dmcn.15177] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/26/2022]
Abstract
The number of diagnoses of developmental disorders is on the rise and the use of labels for developmental disorders, such as attention-deficit/hyperactivity disorder and autism spectrum disorder, is widening. Diagnostic labels can play an important role in helping those who display atypical behaviour and their caregivers to cope with associated challenges and, possibly, to get treatment. But these labels are increasingly contested and associated with a variety of harmful effects. In this paper, we analyze the role diagnostic labels can play in four different contexts (scientific, therapeutic, social, and administrative) and identify what various stakeholders stand to gain or lose with continued, expanded, or abolished use of those labels. Our analysis reveals labels serve different purposes in each of these contexts, benefitting different stakeholders. Any overall evaluation, critique, or defence of labels needs to consider the interests of all stakeholders in these contexts.
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Affiliation(s)
- Sander Werkhoven
- Department of Philosophy and Religious StudiesUtrecht UniversityUtrechtThe Netherlands
| | - Joel H. Anderson
- Department of Philosophy and Religious StudiesUtrecht UniversityUtrechtThe Netherlands
| | - Ingrid A. M. Robeyns
- Department of Philosophy and Religious StudiesUtrecht UniversityUtrechtThe Netherlands
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26
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Elovainio M, Hakulinen C, Komulainen K, Kivimäki M, Virtanen M, Ervasti J, Oksanen T. Psychosocial work environment as a dynamic network: a multi-wave cohort study. Sci Rep 2022; 12:12982. [PMID: 35902624 PMCID: PMC9334355 DOI: 10.1038/s41598-022-17283-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
While characteristics of psychosocial work environment have traditionally been studied separately, we propose an alternative approach that treats psychosocial factors as interacting elements in networks where they all potentially affect each other. In this network analysis, we used data from a prospective occupational cohort including 10,892 participants (85% women; mean age 47 years) and repeated measurements of seven psychosocial work characteristics (job demands, job control, job uncertainty, team climate, effort-reward imbalance, procedural justice and interactional justice) assessed in 2000, 2004, 2008 and 2012. Results from multilevel longitudinal vector autoregressive models indicated that job demands as well as interactional and procedural justice were most broadly associated with the subsequent perceptions of the work-related psychosocial factors (high out-Strength), suggesting these factors might be potentially efficient targets of workplace interventions. The results also suggest that modifying almost any of the studied psychosocial factors might be relevant to subsequent perceptions of effort-reward imbalance and interactional justice at the workplace.
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Affiliation(s)
- Marko Elovainio
- Research Program Unit, Faculty of Medicine, University of Helsinki, P.O. Box 9, Helsinki, Finland.
- Finnish Institute for Health and Welfare, Helsinki, Finland.
| | - Christian Hakulinen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Kaisla Komulainen
- Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
| | - Mika Kivimäki
- Finnish Institute of Occupational Health, Helsinki, Finland
- Department of Epidemiology and Public Health, University College London, London, UK
- Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Marianna Virtanen
- School of Educational Sciences and Psychology, University of Eastern Finland, Joensuu, Finland
| | - Jenni Ervasti
- Finnish Institute of Occupational Health, Helsinki, Finland
| | - Tuula Oksanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
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27
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Wright AC, Browne J, Cather C, Meyer-Kalos P, Mueser KT. Relationship between patterns of cannabis use and functional and symptomatic trajectories in first-episode psychosis. Eur Arch Psychiatry Clin Neurosci 2022:10.1007/s00406-022-01441-5. [PMID: 35900474 DOI: 10.1007/s00406-022-01441-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 05/29/2022] [Indexed: 02/04/2023]
Abstract
Cannabis use is common in first-episode psychosis (FEP) but evidence is mixed about the extent to which cannabis use predicts symptoms and functional outcomes among those who seek treatment. This study sought to characterize cannabis use patterns and examine the relationship with clinical outcomes, including interactions with early intervention services (EIS). Data were drawn from the Recovery After an Initial Schizophrenia Episode-Early Treatment Program (RAISE-ETP) study including FEP individuals receiving treatment at sites randomized to provide either EIS (NAVIGATE) or community care (CC). Cannabis use was assessed monthly and symptom and functioning data were collected at baseline, 6, 12, 18, and 24 months. Among the 404 participants enrolled, 334 were classified into four cannabis use groups (consistent, sporadic, stopped, and never users) based on their use during the first year. Consistent and sporadic cannabis users were younger, whereas those who had stopped using were older. Sporadic users had the highest depression and the lowest functioning at baseline and improved less during treatment in negative emotions and intrapsychic foundations (e.g., motivation and sense of purpose) than non-users. However, sporadic users who received NAVIGATE improved more in overall symptoms and functioning than those who received CC. Consistent users did not tend to differ in their trajectories from non-users. Individuals with FEP who use cannabis sporadically showed less clinical improvement than non-users. However, EIS treatment reduced the negative effects of sporadic cannabis use on clinical outcomes. Those who use cannabis sporadically may have unique needs that require attention in EIS.
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Affiliation(s)
- Abigail C Wright
- Center of Excellence for Psychosocial and Systemic Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA. .,Harvard Medical School, Boston, MA, USA.
| | - Julia Browne
- Center of Excellence for Psychosocial and Systemic Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Geriatric Research, Education and Clinical Center, Durham VA Health Care System, Durham, NC, USA
| | - Corinne Cather
- Center of Excellence for Psychosocial and Systemic Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Piper Meyer-Kalos
- Department of Psychiatry and Behavioral Sciences, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Kim T Mueser
- Center for Psychiatric Rehabilitation, Boston University, Boston, MA, USA.
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28
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Vintiadis E. Mental disorders as processes: A more suited metaphysics for psychiatry. PHILOSOPHICAL PSYCHOLOGY 2022. [DOI: 10.1080/09515089.2022.2101443] [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]
Affiliation(s)
- Elly Vintiadis
- Department of History, Philosophy and the Ancient World, Deree - the American College of Greece, Athens, Greece
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29
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Ward T, Hardy A, Holm R, Collett N, Rus‐Calafell M, Sacadura C, McGourty A, Vella C, East A, Rea M, Harding H, Emsley R, Greenwood K, Freeman D, Fowler D, Kuipers E, Bebbington P, Garety P. SlowMo therapy, a new digital blended therapy for fear of harm from others: An account of therapy personalisation within a targeted intervention. Psychol Psychother 2022; 95:423-446. [PMID: 35019210 PMCID: PMC9306634 DOI: 10.1111/papt.12377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 12/06/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVES SlowMo therapy is a pioneering blended digital therapy for paranoia, augmenting face-to-face therapy with an interactive 'webapp' and a mobile app. A recent large-scale trial demonstrated small-moderate effects on paranoia alongside improvements in self-esteem, worry, well-being and quality of life. This paper provides a comprehensive account of therapy personalisation within this targeted approach. DESIGN Case examples illustrate therapy delivery and descriptive data are presented on personalised thought content. METHOD Thought content was extracted from the webapp (n = 140 participants) and coded using newly devised categories: Worries: (1) Persecutory, (2) Negative social evaluation, (3) Negative self-concept, (4) Loss/life stresses, (5) Sensory-perceptual experiences and (6) Health anxieties. Safer thoughts: (1) Safer alternative (specific alternatives to worries), (2) Second-wave (generalised) coping, (3) Positive self-concept, (4) Positive activities and (5) Third-wave (mindfulness-based) coping. Data on therapy fidelity are also presented. RESULTS Worries: 'Persecutory' (92.9% of people) and 'Negative social evaluation' (74.3%) were most common. 'General worries/ life stresses' (31.4%) and 'Negative self-concept' (22.1%) were present in a significant minority; 'Health anxieties' (10%) and 'Sensory-perceptual' (10%) were less common. Safer thoughts: 'Second-wave (general) coping' (85%), 'Safer alternatives' (76.4%), 'Positive self-concept' (65.7%) and 'Positive activities' (64.3%) were common with 'Third-wave' (mindfulness) coping observed for 30%. Fidelity: Only three therapy withdrawals were therapy related. Session adherence was excellent (mean = 15.2/16; SD = 0.9). Behavioural work was conducted with 71% of people (119/168). CONCLUSION SlowMo therapy delivers a targeted yet personalised approach. Potential mechanisms of action extend beyond reasoning. Implications for cognitive models of paranoia and causal interventionist approaches are discussed.
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Affiliation(s)
- Thomas Ward
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK,South London and Maudsley NHS Foundation TrustLondonUK
| | - Amy Hardy
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK,South London and Maudsley NHS Foundation TrustLondonUK
| | - Rebecca Holm
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK
| | - Nicola Collett
- Department of PsychiatryOxford UniversityOxfordUK,Oxford Health NHS Foundation TrustOxfordUK,Oxford Institute of Clinical Psychology Training and ResearchOxford UniversityOxfordUK
| | - Mar Rus‐Calafell
- Department of PsychiatryOxford UniversityOxfordUK,Oxford Health NHS Foundation TrustOxfordUK,Mental Health Research and Treatment CenterFaculty of PsychologyRuhr‐Universität BochumBochumGermany
| | | | | | - Claire Vella
- Sussex Partnership NHS Foundation TrustWorthingUK,School of PsychologyUniversity of SussexBrightonUK
| | - Anna East
- Department of PsychiatryOxford UniversityOxfordUK,Oxford Health NHS Foundation TrustOxfordUK
| | - Michaela Rea
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK
| | - Helen Harding
- South London and Maudsley NHS Foundation TrustLondonUK
| | - Richard Emsley
- Department of Biostatistics and Health InformaticsInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK
| | | | - Daniel Freeman
- Department of PsychiatryOxford UniversityOxfordUK,Oxford Health NHS Foundation TrustOxfordUK
| | - David Fowler
- Sussex Partnership NHS Foundation TrustWorthingUK,School of PsychologyUniversity of SussexBrightonUK
| | - Elizabeth Kuipers
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK
| | | | - Philippa Garety
- Department of PsychologyInstitute of Psychiatry, Psychology and NeuroscienceKing’s College LondonLondonUK,South London and Maudsley NHS Foundation TrustLondonUK
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30
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McCarthy MJ, Gottlieb JF, Gonzalez R, McClung CA, Alloy LB, Cain S, Dulcis D, Etain B, Frey BN, Garbazza C, Ketchesin KD, Landgraf D, Lee H, Marie‐Claire C, Nusslock R, Porcu A, Porter R, Ritter P, Scott J, Smith D, Swartz HA, Murray G. Neurobiological and behavioral mechanisms of circadian rhythm disruption in bipolar disorder: A critical multi-disciplinary literature review and agenda for future research from the ISBD task force on chronobiology. Bipolar Disord 2022; 24:232-263. [PMID: 34850507 PMCID: PMC9149148 DOI: 10.1111/bdi.13165] [Citation(s) in RCA: 32] [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] [Indexed: 12/14/2022]
Abstract
AIM Symptoms of bipolar disorder (BD) include changes in mood, activity, energy, sleep, and appetite. Since many of these processes are regulated by circadian function, circadian rhythm disturbance has been examined as a biological feature underlying BD. The International Society for Bipolar Disorders Chronobiology Task Force (CTF) was commissioned to review evidence for neurobiological and behavioral mechanisms pertinent to BD. METHOD Drawing upon expertise in animal models, biomarkers, physiology, and behavior, CTF analyzed the relevant cross-disciplinary literature to precisely frame the discussion around circadian rhythm disruption in BD, highlight key findings, and for the first time integrate findings across levels of analysis to develop an internally consistent, coherent theoretical framework. RESULTS Evidence from multiple sources implicates the circadian system in mood regulation, with corresponding associations with BD diagnoses and mood-related traits reported across genetic, cellular, physiological, and behavioral domains. However, circadian disruption does not appear to be specific to BD and is present across a variety of high-risk, prodromal, and syndromic psychiatric disorders. Substantial variability and ambiguity among the definitions, concepts and assumptions underlying the research have limited replication and the emergence of consensus findings. CONCLUSIONS Future research in circadian rhythms and its role in BD is warranted. Well-powered studies that carefully define associations between BD-related and chronobiologically-related constructs, and integrate across levels of analysis will be most illuminating.
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Affiliation(s)
- Michael J. McCarthy
- UC San Diego Department of Psychiatry & Center for Circadian BiologyLa JollaCaliforniaUSA
- VA San Diego Healthcare SystemSan DiegoCaliforniaUSA
| | - John F. Gottlieb
- Department of PsychiatryFeinberg School of MedicineNorthwestern UniversityChicagoIllinoisUSA
| | - Robert Gonzalez
- Department of Psychiatry and Behavioral HealthPennsylvania State UniversityHersheyPennsylvaniaUSA
| | - Colleen A. McClung
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Lauren B. Alloy
- Department of PsychologyTemple UniversityPhiladelphiaPennsylvaniaUSA
| | - Sean Cain
- School of Psychological Sciences and Turner Institute for Brain and Mental HealthMonash UniversityMelbourneVictoriaAustralia
| | - Davide Dulcis
- UC San Diego Department of Psychiatry & Center for Circadian BiologyLa JollaCaliforniaUSA
| | - Bruno Etain
- Université de ParisINSERM UMR‐S 1144ParisFrance
| | - Benicio N. Frey
- Department Psychiatry and Behavioral NeuroscienceMcMaster UniversityHamiltonOntarioCanada
| | - Corrado Garbazza
- Centre for ChronobiologyPsychiatric Hospital of the University of Basel and Transfaculty Research Platform Molecular and Cognitive NeurosciencesUniversity of BaselBaselSwitzerland
| | - Kyle D. Ketchesin
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Dominic Landgraf
- Circadian Biology GroupDepartment of Molecular NeurobiologyClinic of Psychiatry and PsychotherapyUniversity HospitalLudwig Maximilian UniversityMunichGermany
| | - Heon‐Jeong Lee
- Department of Psychiatry and Chronobiology InstituteKorea UniversitySeoulSouth Korea
| | | | - Robin Nusslock
- Department of Psychology and Institute for Policy ResearchNorthwestern UniversityChicagoIllinoisUSA
| | - Alessandra Porcu
- UC San Diego Department of Psychiatry & Center for Circadian BiologyLa JollaCaliforniaUSA
| | | | - Philipp Ritter
- Clinic for Psychiatry and PsychotherapyCarl Gustav Carus University Hospital and Technical University of DresdenDresdenGermany
| | - Jan Scott
- Institute of NeuroscienceNewcastle UniversityNewcastleUK
| | - Daniel Smith
- Division of PsychiatryUniversity of EdinburghEdinburghUK
| | - Holly A. Swartz
- Department of PsychiatryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Greg Murray
- Centre for Mental HealthSwinburne University of TechnologyMelbourneVictoriaAustralia
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31
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Freitas C, Hunt BAE, Wong SM, Ristic L, Fragiadakis S, Chow S, Iaboni A, Brian J, Soorya L, Chen JL, Schachar R, Dunkley BT, Taylor MJ, Lerch JP, Anagnostou E. Atypical Functional Connectivity During Unfamiliar Music Listening in Children With Autism. Front Neurosci 2022; 16:829415. [PMID: 35516796 PMCID: PMC9063167 DOI: 10.3389/fnins.2022.829415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/10/2022] [Indexed: 12/30/2022] Open
Abstract
Background Atypical processing of unfamiliar, but less so familiar, stimuli has been described in Autism Spectrum Disorder (ASD), in particular in relation to face processing. We examined the construct of familiarity in ASD using familiar and unfamiliar songs, to investigate the link between familiarity and autism symptoms, such as repetitive behavior. Methods Forty-eight children, 24 with ASD (21 males, mean age = 9.96 years ± 1.54) and 24 typically developing (TD) controls (21 males, mean age = 10.17 ± 1.90) completed a music familiarity task using individually identified familiar compared to unfamiliar songs, while magnetoencephalography (MEG) was recorded. Each song was presented for 30 s. We used both amplitude envelope correlation (AEC) and the weighted phase lag index (wPLI) to assess functional connectivity between specific regions of interest (ROI) and non-ROI parcels, as well as at the whole brain level, to understand what is preserved and what is impaired in familiar music listening in this population. Results Increased wPLI synchronization for familiar vs. unfamiliar music was found for typically developing children in the gamma frequency. There were no significant differences within the ASD group for this comparison. During the processing of unfamiliar music, we demonstrated left lateralized increased theta and beta band connectivity in children with ASD compared to controls. An interaction effect found greater alpha band connectivity in the TD group compared to ASD to unfamiliar music only, anchored in the left insula. Conclusion Our results revealed atypical processing of unfamiliar songs in children with ASD, consistent with previous studies in other modalities reporting that processing novelty is a challenge for ASD. Relatively typical processing of familiar stimuli may represent a strength and may be of interest to strength-based intervention planning.
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Affiliation(s)
- Carina Freitas
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Benjamin A. E. Hunt
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, ON, Canada
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Simeon M. Wong
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, ON, Canada
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Leanne Ristic
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Susan Fragiadakis
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Stephanie Chow
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Alana Iaboni
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Jessica Brian
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Latha Soorya
- Department of Psychiatry, Rush University Medical Center, Chicago, IL, United States
| | - Joyce L. Chen
- Faculty of Kinesiology and Physical Education and Rehabilitation Sciences Institute, University of Toronto, Toronto, ON, Canada
| | - Russell Schachar
- Department of Psychiatry Research, Hospital for Sick Children, Toronto, ON, Canada
| | - Benjamin T. Dunkley
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, ON, Canada
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | - Margot J. Taylor
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, ON, Canada
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
- Departments of Psychology and Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Jason P. Lerch
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, United Kingdom
| | - Evdokia Anagnostou
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
- Neuroscience and Mental Health Program, Hospital for Sick Children Research Institute, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
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32
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Abstract
OBJECTIVE The biopsychosocial (BPS) model remains the predominant theoretical framework underpinning contemporary psychiatric training and practice. Like all models, it has its limitations and its critics. In light of recent censure, The purpose of this article was to (a) review key aspects of the history, development and contemporary utility of the BPS model and, (b) review key contributions of George Engel. CONCLUSION An aetiological model for mental disorders that involves psychological, biological and sociocultural factors has existed since at least the 1940s. The term "biopsychosocial" was arguably first coined by Roy Grinker in 1952. Spurred on by his interest in systems theory, Engel expanded upon the model in 1977 and used it to hypothesise about the integration of mind and body. Despite its shortcomings, the BPS model remains relevant and useful.
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Affiliation(s)
- William Lugg
- Consultation-Liaison Psychiatry Advanced Trainee, Department of Consultation-Liaison Psychiatry, Royal Prince Alfred Hospital, Sydney, Australia
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33
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Cohen BM, Öngür D, Babb SM. Alternative Diagnostic Models of the Psychotic Disorders: Evidence-Based Choices. PSYCHOTHERAPY AND PSYCHOSOMATICS 2022; 90:373-385. [PMID: 34233335 DOI: 10.1159/000517027] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 04/19/2021] [Indexed: 11/19/2022]
Abstract
Standard diagnostic systems, the predominantly categorical DSM-5 and ICD-11, have limitations in validity, utility, and predictive and descriptive power. For psychotic disorders, these issues were partly addressed in current versions, but additional modifications are thought to be needed. Changes should be evidence based. We reviewed categorical, modified-categorical, and continuum-based models versus factor-based models of psychosis. Factors are clusters of symptoms or single prominent aspects of illness. Consistent evidence from studies of the genetics, pathobiology, and clinical presentation of psychotic disorders all support an underlying structure of factors, not categories, as best characterizing psychoses. Factors are not only the best fit but also comprehensive, as they can encompass any key feature of illness, including symptoms and course, as well as determinants of risk or response. Factors are inherently dimensional, even multidimensional, as are the psychoses themselves, and they provide the detail needed for either grouping or distinguishing patients for treatment decisions. The tools for making factor-based diagnoses are available, reliable, and concordant with actual practices used for clinical assessments. If needed, factors can be employed to create categories similar to those in current use. In addition, they can be used to define unique groupings of patients relevant to specific treatments or studies of the psychoses. Lastly, factor-based classifications are concordant with other comprehensive approaches to psychiatric nosology, including personalized (precision treatment) models and hierarchical models, both of which are currently being explored. Factors might be considered as the right primary structural choice for future versions of standard diagnostic systems, both DSM and ICD.
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Affiliation(s)
- Bruce M Cohen
- Harvard Medical School, Boston, Massachusetts, USA.,McLean Hospital, Belmont, Massachusetts, USA
| | - Dost Öngür
- Harvard Medical School, Boston, Massachusetts, USA.,McLean Hospital, Belmont, Massachusetts, USA
| | - Suzann M Babb
- Harvard Medical School, Boston, Massachusetts, USA.,McLean Hospital, Belmont, Massachusetts, USA
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34
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Nrf2/ARE axis signalling in hepatocyte cellular death. Mol Biol Rep 2022; 49:4039-4053. [PMID: 35020121 DOI: 10.1007/s11033-022-07125-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/04/2022] [Indexed: 02/07/2023]
Abstract
The Nrf2-ARE transcriptional pathway plays an important role amongst cellular defence systems regulating and ensuring adequacy of redox responses and oxidant signalling factors. Hepatocyte cellular death and injury is a prominent feature underlying liver pathologies. Diverse endogenous molecules and targets contribute to the outcome of cell survival and the consequent mode of cell death. Several research efforts focused on the confirmation of Nrf2 presence in cell death and its vital necessity against cell compromise, however, little they comprehend of such participation. Hepatocyte cell death modes discussed in this review including autophagy, apoptosis, necrosis, ferroptosis, pyroptosis, fibrosis and others, vary in response of the stimuli burdened. The current review presents a handful of highlights and crosstalk involved in the communication of Nrf2 signalling network with the "up to date" reported hepatocyte cell death modes and their underling mechanisms, and addressing key cellular networks of hepatocyte fate, through a perspective of Nrf2 as a critical transcriptional factor. Collectively, labelling the cross-transduction of Nrf2-ARE axis with key cell execution pathways could provide insights to therapeutic interventions and better research outcomes.
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35
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Schleim S. Why mental disorders are brain disorders. And why they are not: ADHD and the challenges of heterogeneity and reification. Front Psychiatry 2022; 13:943049. [PMID: 36072457 PMCID: PMC9441484 DOI: 10.3389/fpsyt.2022.943049] [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: 05/13/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
Scientific attempts to identify biomarkers to reliably diagnose mental disorders have thus far been unsuccessful. This has inspired the Research Domain Criteria (RDoC) approach which decomposes mental disorders into behavioral, emotional, and cognitive domains. This perspective article argues that the search for biomarkers in psychiatry presupposes that the present mental health categories reflect certain (neuro-) biological features, that is, that these categories are reified as biological states or processes. I present two arguments to show that this assumption is very unlikely: First, the heterogeneity (both within and between subjects) of mental disorders is grossly underestimated, which is particularly salient for an example like Attention Deficit/Hyperactivity Disorder (ADHD). Second, even the search for the biological basis of psychologically more basic categories (cognitive and emotional processes) than the symptom descriptions commonly used in mental disorder classifications has thus far been inconclusive. While philosophers have discussed this as the problem of mind-body-reductionism for ages, Turkheimer presented a theoretical framework comparing weak and strong biologism which is more useful for empirical research. This perspective article concludes that mental disorders are brain disorders in the sense of weak, but not strong biologism. This has important implications for psychiatric research: The search for reliable biomarkers for mental disorder categories we know is unlikely to ever be successful. This implies that biology is not the suitable taxonomic basis for psychiatry, but also psychology at large.
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Affiliation(s)
- Stephan Schleim
- Theory and History of Psychology, Faculty of Behavioral and Social Sciences, Heymans Institute for Psychological Research, University of Groningen, Groningen, Netherlands
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36
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Gauld C, Bottemanne H. Vers une psychiatrie énactive et computationnelle. ANNALES MEDICO-PSYCHOLOGIQUES 2022. [DOI: 10.1016/j.amp.2022.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Oldham MA. Delirium disorder: Unity in diversity. Gen Hosp Psychiatry 2022; 74:32-38. [PMID: 34875568 DOI: 10.1016/j.genhosppsych.2021.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/28/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The first objective of this review is to explore the factors that have led to and maintain the division between delirium and acute encephalopathy. The second is to explore the value of harmonizing them through the model of delirium disorder. METHOD This narrative review outlines major distinctions between delirium and acute encephalopathy. It also compares them with the model of delirium disorder, which seeks not only to integrate them but also to offer a broader palette of treatment targets. RESULTS Delirium implies an underlying acute encephalopathy, whereas acute encephalopathy presents as a spectrum from subsyndromal delirium to coma. Key factors that differentiate these two models include tradition, nuances of the models themselves, linguistic connotations, evoked responses from clinicians, implications of preventability and responsibility, cultural perceptions of non-pharmacological vs pharmacological interventions and economic incentives. A validated set of pathophysiological subtypes may ultimately help link the delirium-spectrum phenotype with various acute encephalopathies. CONCLUSIONS Developing a coherent clinical and scientific approach to this set of conditions demands that we first develop a coherent understanding of the conditions themselves and how they relate to one another. Such an approach must embrace the tension between a convergent phenotype and its diverse biological underpinnings.
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Affiliation(s)
- Mark A Oldham
- University of Rochester Medical Center, Department of Psychiatry, 300 Crittenden Blvd, Box PSYCH, Rochester, NY 14642, United States of America.
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McNally RJ, Robinaugh DJ, Deckersbach T, Sylvia LG, Nierenberg AA. Estimating the symptom structure of bipolar disorder via network analysis: Energy dysregulation as a central symptom. JOURNAL OF PSYCHOPATHOLOGY AND CLINICAL SCIENCE 2022; 131:86-97. [PMID: 34871024 PMCID: PMC9168523 DOI: 10.1037/abn0000715] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Using network analysis, we estimated the structure of relations among manic and depressive symptoms, respectively, in 486 patients (59% women; age: M = 37, SD = 12.1) with bipolar disorder prior to their entering a clinical trial. We computed three types of networks: (a) Gaussian graphical models (GGMs) depicting regularized partial correlations, (b) regression-based GGMs depicting nonregularized partial correlations, and (c) directed acyclic graphs (DAGs) via a Bayesian hill-climbing algorithm. Low energy and elevated energy were consistently identified as central nodes in the GGMs and as key parent nodes in the DAGs. Across analyses, pessimism about the future and depressed mood were the symptoms most strongly associated with suicidal thoughts and behavior. These exploratory analyses provide rich information about how bipolar disorder symptoms relate to one another, thereby furnishing a foundation for investigating how bipolar disorder symptoms may operate as a causal system. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Gauld C, Nielsen K, Job M, Bottemanne H, Dumas G. From analytic to synthetic-organizational pluralisms: A pluralistic enactive psychiatry. Front Psychiatry 2022; 13:981787. [PMID: 36238942 PMCID: PMC9551055 DOI: 10.3389/fpsyt.2022.981787] [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: 06/29/2022] [Accepted: 09/08/2022] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION Reliance on sole reductionism, whether explanatory, methodological or ontological, is difficult to support in clinical psychiatry. Rather, psychiatry is challenged by a plurality of approaches. There exist multiple legitimate ways of understanding human functionality and disorder, i.e., different systems of representation, different tools, different methodologies and objectives. Pluralistic frameworks have been presented through which the multiplicity of approaches in psychiatry can be understood. In parallel of these frameworks, an enactive approach for psychiatry has been proposed. In this paper, we consider the relationships between the different kinds of pluralistic frameworks and this enactive approach for psychiatry. METHODS We compare the enactive approach in psychiatry with wider analytical forms of pluralism. RESULTS On one side, the enactive framework anchored both in cognitive sciences, theory of dynamic systems, systems biology, and phenomenology, has recently been proposed as an answer to the challenge of an integrative psychiatry. On the other side, two forms of explanatory pluralisms can be described: a non-integrative pluralism and an integrative pluralism. The first is tolerant, it examines the coexistence of different potentially incompatible or untranslatable systems in the scientific or clinical landscape. The second is integrative and proposes to bring together the different levels of understanding and systems of representations. We propose that enactivism is inherently a form of integrative pluralism, but it is at the same time a component of the general framework of explanatory pluralism, composed of a set of so-called analytical approaches. CONCLUSIONS A significant number of mental health professionals are already accepting the variety of clinical and scientific approaches. In this way, a rigorous understanding of the theoretical positioning of psychiatric actors seems necessary to promote quality clinical practice. The study of entanglements between an analytical pluralism and a synthetic-organizational enactivist pluralism could prove fruitful.
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Affiliation(s)
- Christophe Gauld
- Department of Child Psychiatry, Hospices Civils de Lyon, Grenoble, France.,Institut des Sciences Cognitives Marc Jeannerod, UMR 5229 CNRS and Université Claude Bernard Lyon 1, Paris, France
| | - Kristopher Nielsen
- School of Psychology, Te Herenga Waka - Victoria University of Wellington, Wellington, New Zealand
| | - Manon Job
- Institut Jean Nicod, École Normale Supérieure-EHESS, Paris, France
| | - Hugo Bottemanne
- Paris Brain Institute - Institut du Cerveau (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM), Center for the National Scientific Research (CNRS), APHP, Pitié-Salpêtrière Hospital, DMU Neuroscience, Sorbonne University, Paris, France.,Department of Psychiatry, Pitié-Salpêtrière Hospital, DMU Neuroscience, Sorbonne University, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Department of Philosophy, Sorbonne University, SND Research Unit, Center for the National Scientific Research (CNRS), UMR 8011, Paris, France
| | - Guillaume Dumas
- CHU Sainte-Justine Research Center, Department of Psychiatry, Université de Montréal, Montréal, QC, Canada.,Mila - Québec Artificial Intelligence Institute, Université de Montréal, Montréal, QC, Canada
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Pratique clinique et pluralismes en psychiatrie. ANNALES MEDICO-PSYCHOLOGIQUES 2021. [DOI: 10.1016/j.amp.2021.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Moris JM, Olendorff SA, Zajac CM, Fernandez Del Valle M, Webb BL, Zuercher J, Smith BK, Tucker KR, Guilford BL. Collegiate Male Athletes Exhibit Conditions of the Male Athlete Triad. Appl Physiol Nutr Metab 2021; 47:328-336. [PMID: 34807739 DOI: 10.1139/apnm-2021-0512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The primary purpose of this study was to determine prevalence of the Male Athlete Triad (MAT) conditions: low energy availability (EA), low bone mineral density (BMD), and low testosterone in male collegiate athletes from different sports. Participants included 44 collegiate male athletes (age, 20.4 ± 0.2 yr; BMI, 25.3 ± 1.3 kg/m2) from seven sports (cross country, soccer, basketball, wrestling, track, golf, and baseball). Resting metabolic rate, three-day food intake, seven-day exercise energy expenditure, body composition, and reproductive and metabolic hormones were assessed. Of the total participants, 15% had low EA, 0% had low BMD, 28% had low total testosterone (TT), and 80% had low calculated free testosterone (cFT). There were no significant correlations between EA, BMD, TT, and cFT. Insulin and sex hormone binding globulin (SHBG) were below and on the upper end of the reference range for healthy male adults, respectively. Insulin was negatively correlated with total (r = -0.330, p = 0.043) and lumbar spine BMD z-scores (r = -0.413, p = 0.010). Low TT and low cFT were the most prevalent MAT conditions among all athletes. Further research should investigate the relationship between insulin and SHBG and the role of these hormones in the MAT. Novelty Bullets • Assessment of energy availability alone is not sufficient to identify physiological disturbances in collegiate male athletes. • Low total and/or free testosterone may be present in some collegiate male athletes, regardless of BMD status. • Low insulin and high SHBG concentration may portray the presence of conditions of the MAT in male collegiate athletes.
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Affiliation(s)
- Jose M Moris
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
| | - Samantha A Olendorff
- Southern Illinois University Edwardsville, 33140, Chemistry, Edwardsville, Illinois, United States;
| | - Chelsie M Zajac
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
| | - Maria Fernandez Del Valle
- Southern Illinois University Edwardsville, 33140, Applied Health, Vadalabene Center, Campus box 1126, VC 2626, Edwardsville, Illinois, United States, 62026-1001;
| | - Benjamin L Webb
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
| | - Jennifer Zuercher
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
| | - Bryan K Smith
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
| | - Kevin R Tucker
- Southern Illinois University Edwardsville, 33140, Chemistry, Edwardsville, Illinois, United States;
| | - Brianne L Guilford
- Southern Illinois University Edwardsville, 33140, Applied Health, Edwardsville, Illinois, United States;
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Tretter F, Loeffler-Stastka H. How does the 'environment' come to the person? The 'ecology of the person' and addiction. World J Psychiatry 2021; 11:915-936. [PMID: 34888165 PMCID: PMC8613760 DOI: 10.5498/wjp.v11.i11.915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/30/2021] [Accepted: 09/02/2021] [Indexed: 02/06/2023] Open
Abstract
Currently, psychiatry lacks a field that can be called "theoretical psychiatry", which uses theoretical concepts and explanatory models: The main stream of research is to collect data of all kinds in the hope that the computational Big Data approach will shed a bright light on the black box of mental disorders. Accordingly, the biology-based Research Domain Criteria of the National Institute of Mental Health have been established. However, as philosophical analyses of concepts and methods have shown, several epistemological gaps stand in the way of a consistent multilevel understanding of mental disorders. Also, the implicit ontological problems in the biological reduction of the psychosocial level and in the integration of so-called hard and soft disciplines are mostly left out. As a consequence, a non-reductive psychological theory of mental disorders is sought that also integrates correlating biological and sociological issues. In this context, one example of promising nonreductive psychiatric research is the option of systems/network psychopathology. The possibilities for integrating different psychological perspectives are highlighted for the field of addiction research and treatment, where pragmatic behaviorist approaches dominate over the theory-based practice of psychoanalysis. In comparing the theoretical constructs of these two approaches, the relevance of the concept of "(social) environment" as the wealth of influential sociocultural factors is discussed at levels superior to the interpersonal micro-level, namely the organizational meso- and societal macro level, which is not sufficiently considered in current biopsychiatry. On this basis of argumentation, the usefulness of grounding and framing psychiatry through the field of ecological sciences, especially human ecology, is demonstrated. Finally, to this end, an outline of an ecological model of mental health and illness is presented.
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Affiliation(s)
- Felix Tretter
- Bertalanffy Center for the Study of Systems Science, Vienna 1040, Austria
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Giannakopoulou O, Lin K, Meng X, Su MH, Kuo PH, Peterson RE, Awasthi S, Moscati A, Coleman JRI, Bass N, Millwood IY, Chen Y, Chen Z, Chen HC, Lu ML, Huang MC, Chen CH, Stahl EA, Loos RJF, Mullins N, Ursano RJ, Kessler RC, Stein MB, Sen S, Scott LJ, Burmeister M, Fang Y, Tyrrell J, Jiang Y, Tian C, McIntosh AM, Ripke S, Dunn EC, Kendler KS, Walters RG, Lewis CM, Kuchenbaecker K. The Genetic Architecture of Depression in Individuals of East Asian Ancestry: A Genome-Wide Association Study. JAMA Psychiatry 2021; 78:1258-1269. [PMID: 34586374 PMCID: PMC8482304 DOI: 10.1001/jamapsychiatry.2021.2099] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/17/2021] [Indexed: 02/06/2023]
Abstract
Importance Most previous genome-wide association studies (GWAS) of depression have used data from individuals of European descent. This limits the understanding of the underlying biology of depression and raises questions about the transferability of findings between populations. Objective To investigate the genetics of depression among individuals of East Asian and European descent living in different geographic locations, and with different outcome definitions for depression. Design, Setting, and Participants Genome-wide association analyses followed by meta-analysis, which included data from 9 cohort and case-control data sets comprising individuals with depression and control individuals of East Asian descent. This study was conducted between January 2019 and May 2021. Exposures Associations of genetic variants with depression risk were assessed using generalized linear mixed models and logistic regression. The results were combined across studies using fixed-effects meta-analyses. These were subsequently also meta-analyzed with the largest published GWAS for depression among individuals of European descent. Additional meta-analyses were carried out separately by outcome definition (clinical depression vs symptom-based depression) and region (East Asian countries vs Western countries) for East Asian ancestry cohorts. Main Outcomes and Measures Depression status was defined based on health records and self-report questionnaires. Results There were a total of 194 548 study participants (approximate mean age, 51.3 years; 62.8% women). Participants included 15 771 individuals with depression and 178 777 control individuals of East Asian descent. Five novel associations were identified, including 1 in the meta-analysis for broad depression among those of East Asian descent: rs4656484 (β = -0.018, SE = 0.003, P = 4.43x10-8) at 1q24.1. Another locus at 7p21.2 was associated in a meta-analysis restricted to geographically East Asian studies (β = 0.028, SE = 0.005, P = 6.48x10-9 for rs10240457). The lead variants of these 2 novel loci were not associated with depression risk in European ancestry cohorts (β = -0.003, SE = 0.005, P = .53 for rs4656484 and β = -0.005, SE = 0.004, P = .28 for rs10240457). Only 11% of depression loci previously identified in individuals of European descent reached nominal significance levels in the individuals of East Asian descent. The transancestry genetic correlation between cohorts of East Asian and European descent for clinical depression was r = 0.413 (SE = 0.159). Clinical depression risk was negatively genetically correlated with body mass index in individuals of East Asian descent (r = -0.212, SE = 0.084), contrary to findings for individuals of European descent. Conclusions and Relevance These results support caution against generalizing findings about depression risk factors across populations and highlight the need to increase the ancestral and geographic diversity of samples with consistent phenotyping.
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Affiliation(s)
- Olga Giannakopoulou
- Division of Psychiatry, University College of London, London, United Kingdom
| | - Kuang Lin
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Xiangrui Meng
- Division of Psychiatry, University College of London, London, United Kingdom
| | - Mei-Hsin Su
- Institute of Epidemiology and Preventive Medicine, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Po-Hsiu Kuo
- Institute of Epidemiology and Preventive Medicine, National Taiwan University College of Public Health, Taipei, Taiwan
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Roseann E. Peterson
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia
| | - Swapnil Awasthi
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin, Berlin, Germany
| | - Arden Moscati
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jonathan R. I. Coleman
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
- National Institute for Health Research Maudsley Biomedical Research Centre, King’s College London, London, United Kingdom
| | - Nick Bass
- Division of Psychiatry, University College of London, London, United Kingdom
| | - Iona Y. Millwood
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Yiping Chen
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Zhengming Chen
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Hsi-Chung Chen
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Mong-Liang Lu
- Department of Psychiatry, Wan-Fang Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ming-Chyi Huang
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Psychiatry, Taipei City Psychiatric Center, Taipei, Taiwan
| | - Chun-Hsin Chen
- Department of Psychiatry, Wan-Fang Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Eli A. Stahl
- The Pamela Sklar Division of Psychiatric Genomics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ruth J. F. Loos
- The Charles Bronfman Institute for Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Niamh Mullins
- The Pamela Sklar Division of Psychiatric Genomics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Robert J. Ursano
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | | | | | - Srijan Sen
- Michigan Neuroscience Institute, Department of Psychiatry, University of Michigan, Ann Arbor, Michigan
| | - Laura J. Scott
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Margit Burmeister
- Molecular & Behavioral Neuroscience Institute, Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Yu Fang
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan
| | - Jess Tyrrell
- University of Exeter Medical School, University of Exeter, The RILD Building, RD&E Hospital, Exeter, United Kingdom
| | | | | | - Andrew M. McIntosh
- Division of Psychiatry, University of Edinburgh, Edinburgh, United Kingdom
| | - Stephan Ripke
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin, Berlin, Germany
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Erin C. Dunn
- Harvard Medical School, Boston, Massachusetts
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Kenneth S. Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia
| | - Robin G. Walters
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Cathryn M. Lewis
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
- National Institute for Health Research Maudsley Biomedical Research Centre, King’s College London, London, United Kingdom
| | - Karoline Kuchenbaecker
- Division of Psychiatry, University College of London, London, United Kingdom
- UCL Genetics Institute, University College of London, London, United Kingdom
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Fischell JM, Fishman PS. A Multifaceted Approach to Optimizing AAV Delivery to the Brain for the Treatment of Neurodegenerative Diseases. Front Neurosci 2021; 15:747726. [PMID: 34630029 PMCID: PMC8497810 DOI: 10.3389/fnins.2021.747726] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022] Open
Abstract
Despite major advancements in gene therapy technologies, there are no approved gene therapies for diseases which predominantly effect the brain. Adeno-associated virus (AAV) vectors have emerged as the most effective delivery vector for gene therapy owing to their simplicity, wide spread transduction and low immunogenicity. Unfortunately, the blood-brain barrier (BBB) makes IV delivery of AAVs, to the brain highly inefficient. At IV doses capable of widespread expression in the brain, there is a significant risk of severe immune-mediated toxicity. Direct intracerebral injection of vectors is being attempted. However, this method is invasive, and only provides localized delivery for diseases known to afflict the brain globally. More advanced methods for AAV delivery will likely be required for safe and effective gene therapy to the brain. Each step in AAV delivery, including delivery route, BBB transduction, cellular tropism and transgene expression provide opportunities for innovative solutions to optimize delivery efficiency. Intra-arterial delivery with mannitol, focused ultrasound, optimized AAV capsid evolution with machine learning algorithms, synthetic promotors are all examples of advanced strategies which have been developed in pre-clinical models, yet none are being investigated in clinical trials. This manuscript seeks to review these technological advancements, and others, to improve AAV delivery to the brain, and to propose novel strategies to build upon this research. Ultimately, it is hoped that the optimization of AAV delivery will allow for the human translation of many gene therapies for neurodegenerative and other neurologic diseases.
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Affiliation(s)
- Jonathan M Fischell
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Paul S Fishman
- Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, United States
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Cohen BM, Ravichandran C, Öngür D, Harris PQ, Babb SM. Use of DSM-5 diagnoses vs. other clinical information by US academic-affiliated psychiatrists in assessing and treating psychotic disorders. World Psychiatry 2021; 20:447-448. [PMID: 34505361 PMCID: PMC8429317 DOI: 10.1002/wps.20903] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Bruce M Cohen
- Harvard Medical School and McLean Hospital, Boston, MA, USA
| | | | - Dost Öngür
- Harvard Medical School and McLean Hospital, Boston, MA, USA
| | - Peter Q Harris
- Harvard Medical School and McLean Hospital, Boston, MA, USA
| | - Suzann M Babb
- Harvard Medical School and McLean Hospital, Boston, MA, USA
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Amoretti MC, Lalumera E, Serpico D. The DSM-5 introduction of the Social (Pragmatic) Communication Disorder as a new mental disorder: a philosophical review. HISTORY AND PHILOSOPHY OF THE LIFE SCIENCES 2021; 43:108. [PMID: 34559337 PMCID: PMC8463351 DOI: 10.1007/s40656-021-00460-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
The latest edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) included the Social (Pragmatic) Communication Disorder (SPCD) as a new mental disorder characterized by deficits in pragmatic abilities. Although the introduction of SPCD in the psychiatry nosography depended on a variety of reasons-including bridging a nosological gap in the macro-category of Communication Disorders-in the last few years researchers have identified major issues in such revision. For instance, the symptomatology of SPCD is notably close to that of (some forms of) Autism Spectrum Disorder (ASD). This opens up the possibility that individuals with very similar symptoms can be diagnosed differently (with either ASD or SPCD) and receive different clinical treatments and social support. The aim of this paper is to review recent debates on SPCD, particularly as regards its independence from ASD. In the first part, we outline the major aspects of the DSM-5 nosological revision involving ASD and SPCD. In the second part, we focus on the validity and reliability of SPCD. First, we analyze literature on three potential validators of SPCD, i.e., etiology, response to treatment, and measurability. Then, we turn to reliability issues connected with the introduction of the grandfather clause and the use of the concepts of spectrum and threshold in the definition of ASD. In the conclusion, we evaluate whether SPCD could play any role in contemporary psychiatry other than that of an independent mental disorder and discuss the role that non-epistemic factors could play in the delineation of the future psychiatry nosography.
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Affiliation(s)
- M Cristina Amoretti
- Department of Classics, Philosophy and History (DAFIST), Philosophy Section, University of Genoa, Via Balbi 4, 16126, Genoa, Italy.
| | - Elisabetta Lalumera
- Department for Life Quality Studies (QUVI), University of Bologna, Corso di Augusto 237, 47921, Rimini, Italy
| | - Davide Serpico
- Department of Classics, Philosophy and History (DAFIST), Philosophy Section, University of Genoa, Via Balbi 4, 16126, Genoa, Italy
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Balan S, Majumder P, Radhakrishnan R, Wadhwa R, Somvanshi S. The Networked Computer Metaphor: A Novel Tool for Psychiatric Trainees to Enhance Utility of the Biopsychosocial Model of Health and Illness. Cureus 2021; 13:e17395. [PMID: 34462709 PMCID: PMC8386675 DOI: 10.7759/cureus.17395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2021] [Indexed: 11/23/2022] Open
Abstract
The biopsychosocial (BPS) model proposed by George Engel posited that a disease developed through a complex interaction of biological, psychological and social factors. This popular model, despite its limitations, continues to influence the practice and treatment of illness and service delivery worldwide. We propose the networked computer metaphor as a novel and pragmatic tool to help psychiatric trainees appreciate and enhance the utility of the BPS model as it pertains to psychiatric disorders. We also propose that the application of this metaphor would help provide some clues to answer the question of achieving the goal envisioned by Engel of providing holistic and comprehensive patient-centered care. We also discuss the utility of this metaphor from trainee, teacher and patient perspectives and describe various examples of the application of this metaphor so as to deepen our understanding of the BPS model. We discuss the criticisms of this model, summarize the applications of this metaphor and outline future directions for research.
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Affiliation(s)
- Sabish Balan
- Psychiatry, NYC Health + Hospitals - Harlem, New York, USA
| | - Pradipta Majumder
- Psychiatry, Drexel University College of Medicine, Philadelphia, USA.,Psychiatry, WellSpan Health, York, USA
| | | | - Roopma Wadhwa
- Psychiatry, South Carolina Department of Mental Health, Columbia, USA
| | - Saurabh Somvanshi
- Psychiatry and Behavioral Sciences, Jamaica Hospital Medical Center, New York, USA
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Abstract
Psychiatry has long debated whether the causes of mental illness can be better explained by reductionist or pluralistic accounts. Although the former relies on commonsense scientific bottom-up causal models, the latter (which typically include environmental, psychological, and/or socio-cultural risk factors) requires top-down causal processes often viewed with skepticism, especially by neuroscientists. We begin with four clinical vignettes which illustrate self-interventions wherein high-order psychological processes (e.g. religious beliefs or deep interpersonal commitments) appear to causally impact the risk for or the course of psychiatric/behavioral disorders. We then propose a model for how to understand this sort of top-down self-causation. Our model relies centrally on the concept of a control variable which, like a radio tuning dial, can implement a series of typically unknown physical processes to obtain the desired ends. We set this control variable in the context of an interventionist account of causation that assumes that a cause (C) produces an effect (E) when intervening on C (by manipulating it) is associated with a change in E. We extend this framework by arguing that certain psychological changes can result from individuals intervening on their own mental states and/or selection of environments. This in turn requires a conception of the self that contains mental capacities that are at least partially independent of one another. Although human beings cannot directly intervene on the neurobiological systems which instantiate risk for psychiatric illness, they can, via control variables at the psychological level, and/or by self-selection into protective environments, substantially alter their own risk.
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Affiliation(s)
- Kenneth S Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
- Department of Psychiatry, Virginia Commonwealth University, RichmondVA, USA
| | - James Woodward
- Department of History and Philosophy of Science, University of Pittsburgh, Pittsburgh, PA, USA
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Köhne ACJ, Isvoranu AM. A Network Perspective on the Comorbidity of Personality Disorders and Mental Disorders: An Illustration of Depression and Borderline Personality Disorder. Front Psychol 2021; 12:680805. [PMID: 34295287 PMCID: PMC8290338 DOI: 10.3389/fpsyg.2021.680805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
The comorbidity of personality disorders and mental disorders is commonly understood through three types of theoretical models: either a) personality disorders precede mental disorders, b) mental disorders precede personality disorders, c) mental disorders and personality disorders share common etiological grounds. Although these hypotheses differ with respect to their idea of causal direction, they all imply a latent variable perspective, in which it is assumed that either personality and mental disorders are latent variables that have certain causal relations [models a) and b)]; or that, as in model c), the common etiology is in fact a latent variable that causes symptomatology of both personality and mental disorders. We aim to provide another perspective on the comorbidity between personality and mental disorders, namely a network perspective. To this end, we investigated Major Depression (MD) and Borderline Personality Disorder (BPD) and hypothesized that symptoms of BPD and MD could interact with one another rather than being caused by a latent variable (e.g., identity diffusion → unstable relationships → depressed mood). To illustrate this theoretical network conceptualization of the comorbidity of BPD and MD we analyzed a cross-sectional clinical dataset of 376 patients who were asked to complete the Structured Clinical Interview for DSM-IV Axis II Disorders and the Beck Depression Inventory II. The results identify direct associations between symptoms of MD and BPD. If we take the links in this empirical network to be ‘substantive', this suggests a radical shift of our current conceptualization of the comorbidity of mental disorders and personality disorders.
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Affiliation(s)
- Annemarie C J Köhne
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, Netherlands.,Academic Medical Center, Amsterdam, Netherlands
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Bertolaso M, Campaner R. Scientific Practice in Modeling Diseases: Stances from Cancer Research and Neuropsychiatry. THE JOURNAL OF MEDICINE AND PHILOSOPHY 2021; 45:105-128. [PMID: 31922577 DOI: 10.1093/jmp/jhz033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
In the last few decades, philosophy of science has increasingly focused on multilevel models and causal mechanistic explanations to account for complex biological phenomena. On the one hand, biological and biomedical works make extensive use of mechanistic concepts; on the other hand, philosophers have analyzed an increasing range of examples taken from different domains in the life sciences to test-support or criticize-the adequacy of mechanistic accounts. The article highlights some challenges in the elaboration of mechanistic explanations with a focus on cancer research and neuropsychiatry. It jointly considers fields, which are usually dealt with separately, and keeps a close eye on scientific practice. The article has a twofold aim. First, it shows that identification of the explananda is a key issue when looking at dynamic processes and their implications in medical research and clinical practice. Second, it discusses the relevance of organizational accounts of mechanisms, and questions whether thorough self-sustaining mechanistic explanations can actually be provided when addressing cancer and psychiatric diseases. While acknowledging the merits of the wide ongoing debate on mechanistic models, the article challenges the mechanistic approach to explanation by discussing, in particular, explanatory and conceptual terms in the light of stances from medical cases.
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Affiliation(s)
- Marta Bertolaso
- Institute of Philosophy of Scientific and Technological Practice, Rome, Italy
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