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Black T, Jenkins BW, Laprairie RB, Howland JG. Therapeutic potential of gamma entrainment using sensory stimulation for cognitive symptoms associated with schizophrenia. Neurosci Biobehav Rev 2024; 161:105681. [PMID: 38641090 DOI: 10.1016/j.neubiorev.2024.105681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/27/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
Schizophrenia is a complex neuropsychiatric disorder with significant morbidity. Treatment options that address the spectrum of symptoms are limited, highlighting the need for innovative therapeutic approaches. Gamma Entrainment Using Sensory Stimulation (GENUS) is an emerging treatment for neuropsychiatric disorders that uses sensory stimulation to entrain impaired oscillatory network activity and restore brain function. Aberrant oscillatory activity often underlies the symptoms experienced by patients with schizophrenia. We propose that GENUS has therapeutic potential for schizophrenia. This paper reviews the current status of schizophrenia treatment and explores the use of sensory stimulation as an adjunctive treatment, specifically through gamma entrainment. Impaired gamma frequency entrainment is observed in patients, particularly in response to auditory and visual stimuli. Thus, sensory stimulation, such as music listening, may have therapeutic potential for individuals with schizophrenia. GENUS holds novel therapeutic potential to improve the lives of individuals with schizophrenia, but further research is required to determine the efficacy of GENUS, optimize its delivery and therapeutic window, and develop strategies for its implementation in specific patient populations.
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Affiliation(s)
- Tallan Black
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
| | - Bryan W Jenkins
- Division of Behavioral Biology, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Robert B Laprairie
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada; Department of Pharmacology, College of Medicine, Dalhousie University, Halifax, NS, Canada
| | - John G Howland
- Department of Anatomy, Physiology, and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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Buhusi M, Brown CK, Buhusi CV. NrCAM-deficient mice exposed to chronic stress exhibit disrupted latent inhibition, a hallmark of schizophrenia. Front Behav Neurosci 2024; 18:1373556. [PMID: 38601326 PMCID: PMC11004452 DOI: 10.3389/fnbeh.2024.1373556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
The neuronal cell adhesion molecule (NrCAM) is widely expressed and has important physiological functions in the nervous system across the lifespan, from axonal growth and guidance to spine and synaptic pruning, to organization of proteins at the nodes of Ranvier. NrCAM lies at the core of a functional protein network where multiple targets (including NrCAM itself) have been associated with schizophrenia. Here we investigated the effects of chronic unpredictable stress on latent inhibition, a measure of selective attention and learning which shows alterations in schizophrenia, in NrCAM knockout (KO) mice and their wild-type littermate controls (WT). Under baseline experimental conditions both NrCAM KO and WT mice expressed robust latent inhibition (p = 0.001). However, following chronic unpredictable stress, WT mice (p = 0.002), but not NrCAM KO mice (F < 1), expressed latent inhibition. Analyses of neuronal activation (c-Fos positive counts) in key brain regions relevant to latent inhibition indicated four types of effects: a single hit by genotype in IL cortex (p = 0.0001), a single hit by stress in Acb-shell (p = 0.031), a dual hit stress x genotype in mOFC (p = 0.008), vOFC (p = 0.020), and Acb-core (p = 0.032), and no effect in PrL cortex (p > 0.141). These results indicating a pattern of differential effects of genotype and stress support a complex stress × genotype interaction model and a role for NrCAM in stress-induced pathological behaviors relevant to schizophrenia and other psychiatric disorders.
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Affiliation(s)
- Mona Buhusi
- Interdisciplinary Program in Neuroscience, Department of Psychology, Utah State University, Logan, UT, United States
| | | | - Catalin V. Buhusi
- Interdisciplinary Program in Neuroscience, Department of Psychology, Utah State University, Logan, UT, United States
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Tarbox-Berry SI, Devoe DJA, Gupta R. Editorial: Advances in identifying individuals at clinical high risk (CHR) for psychosis: perspectives from North America. Front Psychiatry 2024; 14:1357838. [PMID: 38293589 PMCID: PMC10824947 DOI: 10.3389/fpsyt.2023.1357838] [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: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 02/01/2024] Open
Affiliation(s)
- Sarah I. Tarbox-Berry
- Department of Neurology, School of Medicine, Wayne State University, Detroit, MI, United States
- Department of Psychiatry, School of Medicine, Yale University, New Haven, CT, United States
| | - Daniel J. A. Devoe
- Department of Psychology, Mount Royal University, Calgary, AB, Canada
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Rishab Gupta
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States
- Department of Psychiatry, Brigham and Women's Faulkner Hospital and Harvard Medical School, Boston, MA, United States
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Xenaki LA, Dimitrakopoulos S, Selakovic M, Stefanis N. Stress, Environment and Early Psychosis. Curr Neuropharmacol 2024; 22:437-460. [PMID: 37592817 PMCID: PMC10845077 DOI: 10.2174/1570159x21666230817153631] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 08/19/2023] Open
Abstract
Existing literature provides extended evidence of the close relationship between stress dysregulation, environmental insults, and psychosis onset. Early stress can sensitize genetically vulnerable individuals to future stress, modifying their risk for developing psychotic phenomena. Neurobiological substrate of the aberrant stress response to hypothalamic-pituitary-adrenal axis dysregulation, disrupted inflammation processes, oxidative stress increase, gut dysbiosis, and altered brain signaling, provides mechanistic links between environmental risk factors and the development of psychotic symptoms. Early-life and later-life exposures may act directly, accumulatively, and repeatedly during critical neurodevelopmental time windows. Environmental hazards, such as pre- and perinatal complications, traumatic experiences, psychosocial stressors, and cannabis use might negatively intervene with brain developmental trajectories and disturb the balance of important stress systems, which act together with recent life events to push the individual over the threshold for the manifestation of psychosis. The current review presents the dynamic and complex relationship between stress, environment, and psychosis onset, attempting to provide an insight into potentially modifiable factors, enhancing resilience and possibly influencing individual psychosis liability.
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Affiliation(s)
- Lida-Alkisti Xenaki
- First Department of Psychiatry, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 72 Vas. Sophias Ave., Athens, 115 28, Greece
| | - Stefanos Dimitrakopoulos
- First Department of Psychiatry, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 72 Vas. Sophias Ave., Athens, 115 28, Greece
| | - Mirjana Selakovic
- First Department of Psychiatry, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 72 Vas. Sophias Ave., Athens, 115 28, Greece
| | - Nikos Stefanis
- First Department of Psychiatry, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, 72 Vas. Sophias Ave., Athens, 115 28, Greece
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Ling R, Wang Y, Zheng W, Min C, Chen M, Xia D, Li X. Effects of different types of neonatal pain on somatosensory and cognitive development in male juvenile rats. Brain Behav 2023; 13:e3309. [PMID: 37968885 PMCID: PMC10726798 DOI: 10.1002/brb3.3309] [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: 04/11/2023] [Revised: 10/19/2023] [Accepted: 10/24/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Premature infants are inevitably exposed to painful events, including repetitive procedures, inflammation, or mixed stimulation that may induce long-term behavioral outcomes. Here, we set up three neonatal painful models to investigate their long-term effect on somatosensation and cognition. METHODS Three types of neonatal pain models in rat were set up. Rat pups were randomly assigned to four groups. The needling pain (NP) group received repetitive needle pricks on the paws from the day of birth (PD0) to postnatal day 7 (PD7) to mimic the diagnostic and therapeutic procedures. The inflammatory pain (IP) group received the injection of carrageenan into the left hindpaw at PD3 to induce IP in peripheral tissues. The mixed pain group received a combination of the NP and IP (NIP). The control (CON) group was untreated. We performed behavioral and biochemical testing of juvenile rats (PD21-PD26). RESULTS The NIP group showed a longer hypersensitivity than the NP group, when given a secondary inflammatory stimulation. NP led to insensitivity to anxiety-causing stimuli and impairment of fear memory both aggravated by NIP. NP reduced the expression of synapse-related molecules (GluN1/PSD95/GFAP) in the medial prefrontal cortex, and NIP exacerbated this decrease. The corticosterone secretion in the NIP group increased after the behavioral task, compared with those in other three groups. CONCLUSION A combination of NP with inflammation occurring in the neonatal period might aggravate the adverse effects of each on somatosensory and cognitive development of rats, the mechanism of which might be associated with the increase of corticosterone secretion and the dysregulation of synaptic molecules.
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Affiliation(s)
- Ru Ling
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Yueshu Wang
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Wen Zheng
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Cuiting Min
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Mengying Chen
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Dongqing Xia
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
| | - Xiaonan Li
- Department of Child Health CareChildren's Hospital of Nanjing Medical UniversityNanjingJiangsuP. R. China
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Anglin DM, Espinosa A, Addington J, Cadenhead KS, Cannon TD, Cornblatt BA, Keshavan M, Mathalon DH, Perkins DO, Stone W, Tsuang M, Woods SW, Walker E, Bearden CE, Ku BS. Association of Childhood Area-Level Ethnic Density and Psychosis Risk Among Ethnoracial Minoritized Individuals in the US. JAMA Psychiatry 2023; 80:1226-1234. [PMID: 37585191 PMCID: PMC10433142 DOI: 10.1001/jamapsychiatry.2023.2841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/13/2023] [Indexed: 08/17/2023]
Abstract
Importance The protective ethnic density effect hypothesis, which suggests that minoritized individuals who grow up in neighborhoods with a high proportion of ethnoracial minoritized groups are protected from the effects of perceived discrimination, has not been examined among individuals at clinical high risk of psychosis (CHR-P). This level of examination may help identify intervention targets for preventing psychosis among high-risk individuals. Objective To examine the association between area-level ethnic density during childhood, perceived discrimination, and psychosis risk outcomes among ethnoracial minoritized individuals with CHR-P. Design, Setting, and Participants Data were collected as part of the North American Prodrome Longitudinal Study-2 (NAPLS 2) between November 2008 and March 2013. Participants included ethnoracial minoritized youth with CHR-P. Area-level ethnoracial minoritized density pertained to the percent of ethnoracial minoritized individuals within the participant's county during childhood. Generalized mixed-effects models with random intercepts for participants, NAPLS 2 site, and county estimated the associations between area-level ethnic density and the risk of psychosis risk outcomes. Self-reported experience of discrimination was assessed. Mediation analyses computed the indirect association of perceived discrimination in the prospective correlation between ethnic density and psychosis risk outcomes. Analyses took place between December 2021 and June 2023. Main Outcomes and Measures Psychosis risk outcomes included remission, symptomatic, progression, and conversion to psychosis and were assessed throughout 24-month follow-up. Results Of 193 individuals, the mean (SD) age was 17.5 (3.4) years and 113 males (58.5%) were included. Participants self-identified as Asian (29 [15.0%]), Black (57 [29.0%]), Hispanic (any race; 87 [45.0%]), or other (First Nations, Middle Eastern, and interracial individuals; 20 [10.4%]). Greater area-level minoritized density was associated with a lower likelihood of remaining symptomatic (relative risk [RR], 0.54 [95% CI, 0.33-0.89]) and having progressively worsening symptoms (RR, 0.52 [95% CI, 0.32-0.86]) compared with being in remission. More perceived discrimination was associated with a higher risk of staying symptomatic (RR, 1.43 [95% CI, 1.09-1.88]) and progressively worsening (RR, 1.34 [95% CI, 1.02-1.78]) compared with being in remission. Perceived discrimination significantly mediated 21.7% (95% CI, 4.1%-67.0%; P = .02) of the association between area-level minoritized density and the likelihood of being in remission. Conclusions and Relevance This study found that among ethnoracial minority youth with CHR-P, growing up in communities with a greater proportion of ethnically minoritized individuals was associated with remission of psychosis risk symptoms partly through lower levels of perceived discrimination. Understanding how the social environment impacts early psychosis risk may help develop effective interventions to prevent psychosis, especially for vulnerable minoritized youth.
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Affiliation(s)
- Deidre M. Anglin
- Department of Psychology, The City College of New York, City University of New York, New York
- The Graduate Center, City University of New York, New York
| | - Adriana Espinosa
- Department of Psychology, The City College of New York, City University of New York, New York
- The Graduate Center, City University of New York, New York
| | - Jean Addington
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | | | - Tyrone D. Cannon
- Department of Psychiatry, Yale University, New Haven, Connecticut
- Department of Psychology, Yale University, New Haven, Connecticut
| | - Barbara A. Cornblatt
- Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, New York
- Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York
| | - Matcheri Keshavan
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Daniel H. Mathalon
- Department of Psychiatry, University of California, and San Francisco Veterans Affairs Medical Center, San Francisco
| | - Diana O. Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill
| | - William Stone
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Ming Tsuang
- Department of Psychiatry, University of California, San Diego
| | - Scott W. Woods
- Department of Psychiatry, Yale University, New Haven, Connecticut
| | - Elaine Walker
- Department of Psychology, Emory University, Atlanta, Georgia
| | - Carrie E. Bearden
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, California
- Department of Psychology, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, California
| | - Benson S. Ku
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia
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Bjornson KJ, Vanderplow AM, Yang Y, Anderson DR, Kermath BA, Cahill ME. Stress-mediated dysregulation of the Rap1 small GTPase impairs hippocampal structure and function. iScience 2023; 26:107566. [PMID: 37664580 PMCID: PMC10470260 DOI: 10.1016/j.isci.2023.107566] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 05/15/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023] Open
Abstract
The effects of repeated stress on cognitive impairment are thought to be mediated, at least in part, by reductions in the stability of dendritic spines in brain regions critical for proper learning and memory, including the hippocampus. Small GTPases are particularly potent regulators of dendritic spine formation, stability, and morphology in hippocampal neurons. Through the use of small GTPase protein profiling in mice, we identify increased levels of synaptic Rap1 in the hippocampal CA3 region in response to escalating, intermittent stress. We then demonstrate that increased Rap1 in the CA3 is sufficient in and of itself to produce stress-relevant dendritic spine and cognitive phenotypes. Further, using super-resolution imaging, we investigate how the pattern of Rap1 trafficking to synapses likely underlies its effects on the stability of select dendritic spine subtypes. These findings illuminate the involvement of aberrant Rap1 regulation in the hippocampus in contributing to the psychobiological effects of stress.
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Affiliation(s)
- Kathryn J. Bjornson
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Amanda M. Vanderplow
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Yezi Yang
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Danielle R. Anderson
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Bailey A. Kermath
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Michael E. Cahill
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI 53706, USA
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Soteros BM, Tillmon H, Wollet M, General J, Chin H, Lee JB, Carreno FR, Morilak DA, Kim JH, Sia GM. Heterogeneous complement and microglia activation mediates stress-induced synapse loss. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.28.546889. [PMID: 37425856 PMCID: PMC10327081 DOI: 10.1101/2023.06.28.546889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Spatially heterogeneous synapse loss is a characteristic of many psychiatric and neurological disorders, but the underlying mechanisms are unclear. Here, we show that spatially-restricted complement activation mediates stress-induced heterogeneous microglia activation and synapse loss localized to the upper layers of the mouse medial prefrontal cortex (mPFC). Single cell RNA sequencing also reveals a stress-associated microglia state marked by high expression of the apolipoprotein E gene (ApoE high ) localized to the upper layers of the mPFC. Mice lacking complement component C3 are protected from stress-induced layer-specific synapse loss, and the ApoE high microglia population is markedly reduced in the mPFC of these mice. Furthermore, C3 knockout mice are also resilient to stress-induced anhedonia and working memory behavioral deficits. Our findings suggest that region-specific complement and microglia activation can contribute to the disease-specific spatially restricted patterns of synapse loss and clinical symptoms found in many brain diseases.
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Yan L, Xuan FL, Chen S, Gou M, Chen W, Li Y, Wang Z, Wang L, Xie T, Fan F, Zharkovsky A, Tan Y, Tian L. Replenished microglia partially rescue schizophrenia-related stress response. Front Cell Neurosci 2023; 17:1254923. [PMID: 37771931 PMCID: PMC10522857 DOI: 10.3389/fncel.2023.1254923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/15/2023] [Indexed: 09/30/2023] Open
Abstract
Background Microglia play an important role in the maintenance of brain and behavioral homeostasis. The protective effect of microglial replenishment was reported in neurological diseases, but whether microglial therapy would benefit psychiatric disorders such as schizophrenia has been unclear. As schizophrenia is a stress-vulnerable disorder and psychosocial stress promotes inflammation and microglial activation, we aim to understand how microglial replenishment works in stress-associated schizophrenia. Methods We used a CSF1R-mediated pharmacological approach to study repopulated microglia (repMg) in a cohort of mice (n = 10/group) undergoing chronic unpredictable stress (CUS). We further studied a cohort of first-episode schizophrenia (FES, n = 74) patients who had higher perceived stress scores (PSS) than healthy controls (HCs, n = 68). Results Reborn microglia attenuated CUS-induced learned hopelessness and social withdrawal but not anxiety in mice. Compared to control, CUS- or repMg-induced differentially expressed genes (DEGs) in the prefrontal cortex regulated nervous system development and axonal guidance. CUS also caused microglial hyper-ramification and increased engulfment of synaptophysin and vesicular glutamate transporter-2 by microglia and astrocytes, which were recovered in CUS + repMg (all p < 0.05). Moreover, FES patients had smaller hippocampal fimbria than HCs (p < 1e-7), which were negatively associated with PSS (r = -0.397, p = 0.003). Blood DEGs involved in immune system development were also associated with PSS and the right fimbria more prominently in FES patients than HCs (Zr, p < 0.0001). The KCNQ1 was a partial mediator between PSS and fimbria size (β = -0.442, 95% CI: -1.326 ~ -0.087). Conclusion Microglial replenishment may potentially benefit psychiatric disorders such as schizophrenia.
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Affiliation(s)
- Ling Yan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Fang-Ling Xuan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Song Chen
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Mengzhuang Gou
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Wenjin Chen
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Yanli Li
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Zhiren Wang
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Leilei Wang
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Ting Xie
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Fengmei Fan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Alexander Zharkovsky
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Yunlong Tan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Li Tian
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
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Georgiades A, Almuqrin A, Rubinic P, Mouhitzadeh K, Tognin S, Mechelli A. Psychosocial stress, interpersonal sensitivity, and social withdrawal in clinical high risk for psychosis: a systematic review. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2023; 9:38. [PMID: 37330526 DOI: 10.1038/s41537-023-00362-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/28/2023] [Indexed: 06/19/2023]
Abstract
Stress has repeatedly been implicated in the onset and exacerbation of positive symptoms of psychosis. Increasing interest is growing for the role of psychosocial stress in the development of psychosis symptoms in individuals at Clinical High Risk (CHR) for psychosis. A systematic review was therefore conducted to summarize the existing evidence base regarding psychosocial stress, interpersonal sensitivity, and social withdrawal in individuals at CHR for psychosis. An electronic search of Ovid (PsychINFO, EMBASE, MEDLINE, and GLOBAL HEALTH) was conducted until February 2022. Studies that examined psychosocial stress in CHR were included. Twenty-nine studies were eligible for inclusion. Psychosocial stress, interpersonal sensitivity, and social withdrawal were higher in CHR individuals compared to healthy controls and there was some evidence of their association with positive symptoms of psychosis. Two types of psychosocial stressors were found to occur more frequently with CHR status, namely daily stressors, and early and recent trauma, while significant life events did not appear to be significant. Greater exposure to psychosocial stress, emotional abuse, and perceived discrimination significantly increased risk of transition to psychosis in CHR. No studies examined the role of interpersonal sensitivity on transition to psychosis in CHR. This systematic review provides evidence for the association of trauma, daily stressors, social withdrawal, and interpersonal sensitivity with CHR status. Further studies investigating the impact of psychosocial stress on psychosis symptom expression in individuals at CHR and its effects on transition to psychosis are therefore warranted.
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Affiliation(s)
- A Georgiades
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK.
- Brent Early Intervention Service, CNWL, NHS Foundation Trust, 27-29 Fairlight Avenue, London, NW10 8AL, UK.
| | - A Almuqrin
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK
| | - P Rubinic
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK
| | - K Mouhitzadeh
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK
| | - S Tognin
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK
| | - A Mechelli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology, and Neuroscience (IoPPN), King's College London, London, UK
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Ovakimyan A, Patel NA, Brown NJ, Reardon T, Fote G, Gendreau J. Acute Mania and Psychosis in the Context of Primary Adrenal Insufficiency: A Systematic Review of the Literature. Cogn Behav Neurol 2023; 36:85-92. [PMID: 37026774 DOI: 10.1097/wnn.0000000000000340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 12/28/2022] [Indexed: 04/08/2023]
Abstract
BACKGROUND Given the sparse nature of acute mania or psychosis in primary adrenal insufficiency (PAI), physicians may not be aware of the association of these two entities. OBJECTIVE To conduct a systematic review of the literature for the purpose of identifying all studies reporting mania and/or psychosis in individuals with PAI. METHOD We conducted a systematic review according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines using the PubMed, Embase, and Web of Science databases from June 22, 1970 to June 22, 2021, for the purpose of identifying all studies reporting instances of mania or psychosis associated with PAI. RESULTS We identified nine case reports featuring nine patients (M age = 43.3 years, male = 44.4%) over eight countries that fit our inclusion/exclusion criteria. Eight (89%) of the patients had experienced psychosis. Manic and/or psychotic symptom resolution was achieved in 100% of the cases, of which steroid replacement therapy was efficacious in seven (78%) cases and was sufficient in six (67%). CONCLUSION Acute mania and psychosis in the context of PAI is a very rare presentation of an already uncommon disease. Resolution of acute psychiatric change is reliably achieved with the correction of underlying adrenal insufficiency.
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Affiliation(s)
- Andrew Ovakimyan
- School of Medicine, University of California, Irvine, Orange, California
| | - Neal A Patel
- School of Medicine, Mercer University, Columbus, Georgia
| | - Nolan J Brown
- School of Medicine, University of California, Irvine, Orange, California
| | - Taylor Reardon
- Kentucky College of Osteopathic Medicine, University of Pikeville, Pikeville, Kentucky
| | - Gianna Fote
- School of Medicine, University of California, Irvine, Orange, California
| | - Julian Gendreau
- Department of Biomedical Engineering, Johns Hopkins Whiting School of Engineering, Baltimore, Maryland
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Hrivikova K, Marko M, Karailievova L, Romanova Z, Oravcova H, Riecansky I, Jezova D. Neuroendocrine response to a psychosocial stress test is not related to schizotypy but cortisol elevation predicts inflexibility of semantic memory retrieval. Psychoneuroendocrinology 2023; 154:106287. [PMID: 37182519 DOI: 10.1016/j.psyneuen.2023.106287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/30/2023] [Accepted: 05/02/2023] [Indexed: 05/16/2023]
Abstract
An altered stress response can contribute to the transition from preclinical psychotic symptoms to the clinical manifestation of schizophrenia and other psychotic disorders. The present study was aimed at testing the hypotheses that (i) the autonomic and neuroendocrine responses under psychosocial stress are dysregulated in individuals with high psychosis proneness (schizotypy); (ii) the magnitude of post-stress autonomic activation and cortisol release predicts alterations in semantic memory retrieval. The study was performed in 73 healthy individuals of both sexes with either high or low schizotypal traits preselected out of 609 individuals using the Schizotypal Personality Questionnaire. A psychosocial stress procedure based on public speech was used as a stress model. We found that individuals with high schizotypy engaged in less adaptive emotional stress-coping strategies than low schizotypy individuals. Yet, the neuroendocrine, immune, and sympathetic activation in response to the stress test was not different between the groups. Irrespective of the exposure to the stressor, individuals with high schizotypy were less fluent when retrieving associations from semantic memory. In addition, we demonstrated that acute psychosocial stress reduced the flexibility of semantic memory retrieval. The post-stress mental inflexibility was reliably predicted by the concomitant elevation of cortisol concentrations in saliva. The present study thus brings novel evidence indicating that the acute psychosocial challenge impairs retrieval flexibility in the semantic domain, which may be due to neuroendocrine activation.
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Affiliation(s)
- K Hrivikova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center of the Slovak Academy of Sciences, Bratislava, Slovakia
| | - M Marko
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia; Department of Applied Informatics, Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Bratislava, Slovakia
| | - L Karailievova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center of the Slovak Academy of Sciences, Bratislava, Slovakia
| | - Z Romanova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center of the Slovak Academy of Sciences, Bratislava, Slovakia
| | - H Oravcova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center of the Slovak Academy of Sciences, Bratislava, Slovakia; Department of Pharmacology and toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Bratislava, Slovakia
| | - I Riecansky
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia; Department of Psychiatry, Faculty of Medicine, Slovak Medical University in Bratislava, Bratislava, Slovakia.
| | - D Jezova
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Biomedical Research Center of the Slovak Academy of Sciences, Bratislava, Slovakia.
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13
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Stanyon D, DeVylder J, Yamasaki S, Yamaguchi S, Ando S, Usami S, Endo K, Miyashita M, Kanata S, Morimoto Y, Hosozawa M, Baba K, Nakajima N, Niimura J, Nakanishi M, Hiraiwa-Hasegawa M, Kasai K, Nishida A. Auditory Hallucinations and Self-Injurious Behavior in General Population Adolescents: Modeling Within-Person Effects in the Tokyo Teen Cohort. Schizophr Bull 2023; 49:329-338. [PMID: 36333883 PMCID: PMC10016404 DOI: 10.1093/schbul/sbac155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND HYPOTHESES A wealth of evidence suggests that adolescent psychotic experiences (PEs), and especially auditory hallucinations (AHs), are associated with an increased risk for self-injurious behavior (SIB). However, the directionality and specificity of this association are not well understood, and there are no published studies investigating within-person effects over time. The present study aimed to test whether AHs and SIB prospectively increase reciprocal risk at the individual level during early-to-middle adolescence. STUDY DESIGN Three waves (12y, 14y, and 16y) of self-reported AHs and SIB data from a large Tokyo-based adolescent birth cohort (N = 2825) were used. Random Intercept Cross-Lagged Panel Model (RI-CLPM) analysis was conducted to test the within-person prospective associations between AHs and SIB. STUDY RESULTS At the within-person level, AHs were associated with subsequent SIB over the observation period (12y-14y: β = .118, P < .001; 14-16y: β = .086, P = .012). The reverse SIB->AHs relationship was non-significant at 12-14y (β = .047, P = .112) but emerged from 14y to 16y as the primary direction of influence (β = .243, P < .001). Incorporating depression as a time-varying covariate did not meaningfully alter model estimates. CONCLUSIONS A complex bi-directional pattern of relationships was observed between AHs and SIB over the measurement period, and these relationships were independent of depressive symptoms. Adolescent AHs may be both a predictor of later SIB and also a manifestation of SIB-induced psychological distress.
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Affiliation(s)
- Daniel Stanyon
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Jordan DeVylder
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Graduate School of Social Service, Fordham University, New York, NY, USA
| | - Syudo Yamasaki
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Satoshi Yamaguchi
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Shuntaro Ando
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoshi Usami
- Graduate School of Education, The University of Tokyo, Tokyo, Japan
| | - Kaori Endo
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Mitsuhiro Miyashita
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Sho Kanata
- Department of Psychiatry, Teikyo University School of Medicine, Tokyo, Japan
| | - Yuko Morimoto
- Department of Psychology, Ube Frontier University, Yamaguchi, Japan
| | - Mariko Hosozawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kaori Baba
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Naomi Nakajima
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Junko Niimura
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Miharu Nakanishi
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Department of Psychiatric Nursing, Tohoku University Graduate School of Medicine, Sendai-shi, Miyagi, Japan
| | - Mariko Hiraiwa-Hasegawa
- School of Advanced Science, SOKENDAI (Graduate University for Advanced Studies), Kanagawa, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,The International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, Tokyo, Japan
| | - Atsushi Nishida
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
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14
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Gupta T, Antezana L, Porter C, Mayanil T, Bylsma LM, Maslar M, Horton LE. Skills program for awareness, connectedness, and empowerment: A conceptual framework of a skills group for individuals with a psychosis-risk syndrome. Front Psychiatry 2023; 14:1083368. [PMID: 37025348 PMCID: PMC10072161 DOI: 10.3389/fpsyt.2023.1083368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 02/10/2023] [Indexed: 03/08/2023] Open
Abstract
Intervention strategies for those diagnosed with psychotic disorders such as schizophrenia can be effective in reducing symptoms and improving quality of life. While strides have been made in developing prevention and intervention strategies earlier on in the disease progression, among those at clinical high-risk (CHR) for psychosis, challenges with heterogeneity can limit symptom and diagnosis specific treatment. Here, we discuss a newly developed therapy skills group called the Skills Program for Awareness, Connectedness, and Empowerment (SPACE) that integrates different types of behavioral skills - standard and radically open dialectical behavioral therapy as well as cognitive behavioral therapy - for CHR youth between the ages of 13-18 years. With the diathesis-stress framework serving as a foundation, the intervention is divided into three stages. These stages target specific signs and symptoms contributing to the progression of CHR symptoms. Stage 1 targets stress (with the goal of developing awareness and reducing distress), stage 2 targets self-disturbances (with a goal of increasing self-connectedness), and stage 3 targets social connectedness (with a goal of improving social domains of functioning). The focus of this article is to introduce the theoretical framework underlying the pilot skills group and discuss ongoing progress. Clinical Trial Registration NCT05398120; https://clinicaltrials.gov/ct2/show/NCT05398120.
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Affiliation(s)
- Tina Gupta
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Ligia Antezana
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Christian Porter
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Tushita Mayanil
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Lauren M. Bylsma
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Michael Maslar
- The Family Institute at Northwestern University, Evanston, IL, United States
| | - Leslie E. Horton
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
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15
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Guerrin CG, Doorduin J, Prasad K, Vazquez-Matias DA, Barazzuol L, de Vries EF. Social adversity during juvenile age but not adulthood increases susceptibility to an immune challenge later in life. Neurobiol Stress 2023; 23:100526. [PMID: 36844420 PMCID: PMC9945751 DOI: 10.1016/j.ynstr.2023.100526] [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: 11/07/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Adverse experiences in early life can increase mental vulnerability to immune challenges experienced later in life, which may induce the development of stress-related psychopathologies. Here, we investigated whether the combined effect of both events is higher if the first adverse experience occurs when the brain is still in development. Therefore, male Wistar rats were exposed to repeated social defeat (RSD, first hit) during juvenile age or adulthood and to an immune challenge consisting of a single injection of lipopolysaccharide (LPS, second hit) in adulthood. Control animals were not exposed to RSD, but only to the LPS challenge. Translocator protein density, a marker for reactive microglia, microglia cell density and plasma corticosterone levels were measured using in vivo [11C]PBR28 positron emission tomography, iba1 immunostaining, and corticosterone ELISA, respectively. Anhedonia, social behavior and anxiety were measured with the sucrose preference, social interaction, and open field tests, respectively. Rats exposed to RSD during juvenile age exhibited enhanced anhedonia and social interaction dysfunction after an immune challenge in adulthood. This enhanced susceptibility was not observed in rats exposed to RSD during adulthood. In addition, exposure to RSD synergistically increased microglia cell density and glial reactivity to the LPS challenge. This increase in microglia cell density and reactivity to the LPS challenge was more pronounced in rats exposed to RSD during juvenile age than in adulthood. Exposure to RSD alone in juvenile age or adulthood induced similar short-term anhedonia, a long-lasting increase in plasma corticosterone and microglial activity, but no change in anxiety and social behavior. Our findings indicate that exposure to social stress during juvenile age, but not adulthood, primes the immune system and increases the sensitivity to an immune challenge experienced later in life. This suggests that juvenile social stress can have more deleterious effects in the long term than similar stress in adulthood.
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Affiliation(s)
- Cyprien G.J. Guerrin
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands
| | - Janine Doorduin
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands
- Corresponding author.
| | - Kavya Prasad
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands
| | - Daniel A. Vazquez-Matias
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands
| | - Lara Barazzuol
- Department of Radiation Oncology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
- Department of Biomedical Sciences of Cells and Systems, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
| | - Erik F.J. de Vries
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, the Netherlands
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16
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SELENBP1 overexpression in the prefrontal cortex underlies negative symptoms of schizophrenia. Proc Natl Acad Sci U S A 2022; 119:e2203711119. [PMID: 36512497 PMCID: PMC9907074 DOI: 10.1073/pnas.2203711119] [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] [Indexed: 12/15/2022] Open
Abstract
The selenium-binding protein 1 (SELENBP1) has been reported to be up-regulated in the prefrontal cortex (PFC) of schizophrenia patients in postmortem reports. However, no causative link between SELENBP1 and schizophrenia has yet been established. Here, we provide evidence linking the upregulation of SELENBP1 in the PFC of mice with the negative symptoms of schizophrenia. We verified the levels of SELENBP1 transcripts in postmortem PFC brain tissues from patients with schizophrenia and matched healthy controls. We also generated transgenic mice expressing human SELENBP1 (hSELENBP1 Tg) and examined their neuropathological features, intrinsic firing properties of PFC 2/3-layer pyramidal neurons, and frontal cortex (FC) electroencephalographic (EEG) responses to auditory stimuli. Schizophrenia-like behaviors in hSELENBP1 Tg mice and mice expressing Selenbp1 in the FC were assessed. SELENBP1 transcript levels were higher in the brains of patients with schizophrenia than in those of matched healthy controls. The hSELENBP1 Tg mice displayed negative endophenotype behaviors, including heterotopias- and ectopias-like anatomical deformities in upper-layer cortical neurons and social withdrawal, deficits in nesting, and anhedonia-like behavior. Additionally, hSELENBP1 Tg mice exhibited reduced excitabilities of PFC 2/3-layer pyramidal neurons and abnormalities in EEG biomarkers observed in schizophrenia. Furthermore, mice overexpressing Selenbp1 in FC showed deficits in sociability. These results suggest that upregulation of SELENBP1 in the PFC causes asociality, a negative symptom of schizophrenia.
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17
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Adult stress exposure blunts dopamine system hyperresponsivity in a neurodevelopmental rodent model of schizophrenia. SCHIZOPHRENIA 2022; 8:30. [PMID: 35338155 PMCID: PMC8956652 DOI: 10.1038/s41537-022-00235-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 01/31/2022] [Indexed: 11/08/2022]
Abstract
Stress is a major risk factor for the development of both schizophrenia and depression, and comorbidity between the two is common in schizoaffective disorders. However, the effects of stress exposure (i.e. chronic mild stress-CMS) on depression-related phenotypes in a neurodevelopmental model relevant to schizophrenia (i.e. methylazoxymethanol acetate—MAM) have yet to be explored and could provide insight into shared mechanisms of disease. To this end, we combined the prenatal MAM model with adult CMS exposure and explored the resultant pathophysiology using the social approach test (SAT), immobility in the forced swim test (FST) and amphetamine-induced hyperlocomotion (AIH) as depression- and schizophrenia-related endophenotypes and performed extracellular recordings of ventral tegmental area (VTA) DA neurons. MAM rats exhibited a reduction in social approach and increased VTA DA neuron activity compared to SAL rats or CMS groups. Separate cohorts of MAM animals were subjected to FST and AIH testing (counterbalanced order) or FST only. CMS groups exhibited increased FST immobility. Post-FST, both MAM groups (MAM-CON, MAM-CMS) exhibited blunted locomotor response to amphetamine compared with their SAL counterparts exposed to the same tests. Post-FST, MAM rats exhibited comparable VTA population activity to SAL rats, and CMS groups exhibited attenuated VTA population activity. Apomorphine administration results were consistent with the model suggesting that reductions in VTA DA neuron activity in MAM rats following FST exposure resulted from over-excitation, or depolarization block. These data suggest stress-induced DA downregulation in MAM rats, as FST exposure was sufficient to block the DA hyperresponsivity phenotype.
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18
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Karcher NR. Which Came First: The Hallucination or the Neural Alteration? Biol Psychiatry 2022; 92:754-756. [PMID: 36265966 DOI: 10.1016/j.biopsych.2022.08.029] [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: 08/21/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Nicole R Karcher
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri.
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19
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Walker E. The permeable boundary between biological and psychological processes in the origins of psychosis. Psychiatry Res 2022; 317:114853. [PMID: 36152422 DOI: 10.1016/j.psychres.2022.114853] [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: 08/18/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 01/04/2023]
Abstract
In this commentary, I describe the factors that influenced my scientific perspective and methods. Initially, the impetus for my interest in psychosis was the life story of a schizophrenia patient who was a member of a discordant monozygotic twin-pair. This set the stage for viewing the etiology of schizophrenia and other psychoses as involving complex interactions between pre-existing vulnerabilities and exogenous factors. Over time, this crystalized in a neural diathesis-stress model that assumes neuromaturationally-moderated effects of adverse exposures on the expression of congenital vulnerabilities. Challenging issues for future research include identifying the genetic and environmental determinants of vulnerability and the neurobiological pathways mediating the effects of exposure to adversity.
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Affiliation(s)
- Elaine Walker
- Department of Psychology, Emory University, Atlanta, GA 30322, United States.
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20
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Setién-Suero E, Ayesa-Arriola R, Peña J, Crespo-Facorro B, Ojeda N. Trauma and psychosis: The mediating role of premorbid adjustment and recent stressful events in a 3-year longitudinal study. J Psychiatr Res 2022; 155:279-285. [PMID: 36166937 DOI: 10.1016/j.jpsychires.2022.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND Some of the most-studied environmental factors that can contribute to the development of psychosis are the adversities experienced at an early age. Among these, childhood interpersonal trauma (CIT) has been considered especially influential in the onset of the disease. The aim of the study was to explore the relationship between CIT and the first episode of psychosis (FEP), as well as the relationship between CIT and clinical and functional outcomes 3 years after illness onset. METHODS A total of 278 patients with a FEP and 52 healthy controls were studied. Logistic regression analysis was carried out to examine the explained variation by CIT at the beginning of psychosis. Recent stressful events and premorbid adjustment related to CIT, were introduced in path analyses to determine their mediating effects between CIT and the disease and its clinical and functional results. RESULTS Mediation analyses showed that CIT was indirectly associated with belonging to the FEP group through recent stressful events (Effect = 0.981; SE = 0.323; CI = 0.485 to 1.761). Premorbid academic adjustment in late adolescence mediated the relationship between CIT and clinical and functional outcomes, specifically in the measurements of the Scales for Assessment of Positive and Negative Symptoms, in the Brief Psychiatric Rating Scale, and in the Disability Assessment Scale. CONCLUSIONS These findings suggest that early traumatic experiences play an important role in the FEP. Early intervention that promotes good academic adjustment during adolescence and/or avoids retraumatisation could positively impact both the onset and the course of psychotic illness.
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Affiliation(s)
- Esther Setién-Suero
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Bilbao, Spain
| | - Rosa Ayesa-Arriola
- University Hospital Marqués de Valdecilla. Department of Psychiatry, School of Medicine, University of Cantabria, Santander, Spain; CIBERSAM, Centro Investigación Biomédica en Red Salud Mental, Spain; IDIVAL, Valdecilla Biomedical Research Institute, Santander, Spain.
| | - Javier Peña
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Bilbao, Spain
| | - Benedicto Crespo-Facorro
- CIBERSAM, Centro Investigación Biomédica en Red Salud Mental, Spain; Department of Psychiatry, Instituto de Investigación Sanitaria de Sevilla, IBiS, Hospital Universitario Virgen del Rocio, Sevilla, Spain
| | - Natalia Ojeda
- Department of Psychology, Faculty of Health Sciences, University of Deusto, Bilbao, Spain
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21
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Oh H, Susser E, Volpe VV, Lui F, Besecker M, Zhou S, Anglin DM. Psychotic experiences among Black college students in the United States: The role of socioeconomic factors and discrimination. Schizophr Res 2022; 248:198-205. [PMID: 36088750 PMCID: PMC10227771 DOI: 10.1016/j.schres.2022.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 07/27/2022] [Accepted: 09/04/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Psychosis is more prevalent among Black individuals compared with White individuals. However, it is unknown whether this disparity exists among college populations in the United States, and if so, what factors contribute to the disparity. METHODS We analyzed data from Black and White young adult students using the Health Minds Study (2020-2021), which is a survey administered at 140 colleges in the U.S. Using mediation analysis, we examined the extent to which the relation between race and psychotic experiences was mediated by socioeconomic factors (past and current financial distress, food insecurity, parental education) and discrimination. RESULTS Approximately 38 % of Black students and 30 % of White students reported lifetime psychotic experiences. Including all socioeconomic factors together in the same model accounted for just over half (50.2 %) the association between race and psychotic experiences. We then conducted additional analyses examining discrimination, all the socioeconomic factors plus discrimination accounted for 81.5 % of the association between race and psychotic experiences. When disentangling the mediators, food insecurity and discrimination accounted for the largest percentages of the association. The effects of past financial distress and parental education were modified by race. CONCLUSION Black college students were more likely to report lifetime psychotic experiences than their White counterparts. Moreover, socioeconomic factors and discrimination made significant contributions to this racial difference.
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Affiliation(s)
- Hans Oh
- Suzanne Dworak Peck School of Social Work, University of Southern California, 1149 Hill St Suite 1422, Los Angeles, CA 90015, United States of America.
| | - Ezra Susser
- Mailman School of Public Health, Columbia University, United States of America
| | - Vanessa V Volpe
- Department of Psychology, North Carolina State University, Campus Box 7650, Raleigh, NC 27695
| | - Florence Lui
- Memorial Sloan Kettering Cancer Center, United States of America
| | - Megan Besecker
- Suzanne Dworak Peck School of Social Work, University of Southern California, 1149 Hill St Suite 1422, Los Angeles, CA 90015, United States of America
| | - Sasha Zhou
- Department of Public Health, Wayne State University, United States of America
| | - Deidre M Anglin
- Department of Psychology, The City College of New York, City University of New York, 160 Convent Avenue, North Academic Center, New York, NY 10031, United States of America; The Graduate Center, City University of New York, 365 5th Avenue, New York, NY 10016, United States of America
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22
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Ku BS, Aberizk K, Addington J, Bearden CE, Cadenhead KS, Cannon TD, Carrión RE, Compton MT, Cornblatt BA, Druss BG, Mathalon DH, Perkins DO, Tsuang MT, Woods SW, Walker EF. The Association Between Neighborhood Poverty and Hippocampal Volume Among Individuals at Clinical High-Risk for Psychosis: The Moderating Role of Social Engagement. Schizophr Bull 2022; 48:1032-1042. [PMID: 35689540 PMCID: PMC9434451 DOI: 10.1093/schbul/sbac055] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reductions in hippocampal volume (HV) have been associated with both prolonged exposure to stress and psychotic illness. This study sought to determine whether higher levels of neighborhood poverty would be associated with reduced HV among individuals at clinical high-risk for psychosis (CHR-P), and whether social engagement would moderate this association. This cross-sectional study included a sample of participants (N = 174, age-range = 12-33 years, 35.1% female) recruited for the second phase of the North American Prodrome Longitudinal Study. Generalized linear mixed models tested the association between neighborhood poverty and bilateral HV, as well as the moderating role of social engagement on this association. Higher levels of neighborhood poverty were associated with reduced left (β = -0.180, P = .016) and right HV (β = -0.185, P = .016). Social engagement significantly moderated the relation between neighborhood poverty and bilateral HV. In participants with lower levels of social engagement (n = 77), neighborhood poverty was associated with reduced left (β = -0.266, P = .006) and right HV (β = -0.316, P = .002). Among participants with higher levels of social engagement (n = 97), neighborhood poverty was not significantly associated with left (β = -0.010, P = .932) or right HV (β = 0.087, P = .473). In this study, social engagement moderated the inverse relation between neighborhood poverty and HV. These findings demonstrate the importance of including broader environmental influences and indices of social engagement when conceptualizing adversity and potential interventions for individuals at CHR-P.
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Affiliation(s)
- Benson S Ku
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GAUSA
| | | | - Jean Addington
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Carrie E Bearden
- Departments of Psychiatry and Biobehavioral Sciences and Psychology, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, USA
| | | | - Tyrone D Cannon
- Department of Psychiatry, Yale University, New Haven, CTUSA
- Department of Psychology, Yale University, New Haven, CTUSA
| | - Ricardo E Carrión
- Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA
- Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Michael T Compton
- Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, and New York State Psychiatric Institute, New York, NY, USA
| | - Barbara A Cornblatt
- Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA
- Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Benjamin G Druss
- Department of Health Policy and Management, Rollins School of Public Health, Emory University, Atlanta, GAUSA
| | - Daniel H Mathalon
- Department of Psychiatry, University of California, and San Francisco Veterans Affairs Medical Center, San Francisco, CAUSA
| | - Diana O Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
| | - Ming T Tsuang
- Department of Psychiatry, University of California, San Diego, CA, USA
| | - Scott W Woods
- Department of Psychiatry, Yale University, New Haven, CTUSA
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23
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Muddle S, Jones B, Taylor G, Jacobsen P. A systematic review and meta-analysis of the association between emotional stress reactivity and psychosis. Early Interv Psychiatry 2022; 16:958-978. [PMID: 34904353 DOI: 10.1111/eip.13247] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/25/2021] [Accepted: 11/07/2021] [Indexed: 01/03/2023]
Abstract
AIM Emotional stress reactivity may be a mediating factor in the association between trauma and psychosis. This review aimed to (i) identify, summarise and critically evaluate the link between emotional stress reactivity and psychotic experiences (ii) examine evidence for a 'dose-response' relationship between stress reactivity and psychosis in the wider psychosis phenotype (i.e., sub-clinical symptoms). METHODS Electronic database searches (PsychINFO, MEDLINE, EMBASE) were conducted for studies which investigated the link between stress reactivity and psychosis, psychotic symptoms, or a vulnerability to developing psychosis (wider phenotype). Cross-sectional, experimental and experience sampling method study designs were eligible for inclusion. RESULTS Fourty five eligible articles were identified (N participants = 8830). Narrative synthesis showed that increased emotional stress reactivity was associated with psychosis and subclinical psychotic experiences across all study designs, however, findings were inconsistent across studies. The preliminary meta-analysis (k = 4, n = 383) showed increases in emotional stress reactivity was associated with higher negative affect in response to event-related stress, in those with psychosis compared to controls (mean difference in beta coefficients = 0.05, 95% CI 0.02-0.08, p = .004). However, this difference was small with a considerable degree of heterogeneity (p = .001, I2 = 81%) so results should be interpreted with caution. CONCLUSIONS Overall, the evidence suggests that there is a link between emotional stress reactivity and psychosis in those with psychosis, those at high risk of developing psychosis and in relation to subclinical psychotic-like experiences in the general population.
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Affiliation(s)
- Sarah Muddle
- Department of Psychology, University of Bath, Bath, UK
| | - Bradley Jones
- Department of Psychology, University of Bath, Bath, UK
| | - Gemma Taylor
- Department of Psychology, University of Bath, Bath, UK
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24
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Effect of Cytomegalovirus on the Immune System: Implications for Aging and Mental Health. Curr Top Behav Neurosci 2022; 61:181-214. [PMID: 35871707 DOI: 10.1007/7854_2022_376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Human cytomegalovirus (HCMV) is a major modulator of the immune system leading to long-term changes in T-lymphocytes, macrophages, and natural killer (NK) cells among others. Perhaps because of this immunomodulatory capacity, HCMV infection has been linked with a host of deleterious effects including accelerated immune aging (premature mortality, increased expression of immunosenescence-linked markers, telomere shortening, speeding-up of epigenetic "clocks"), decreased vaccine immunogenicity, and greater vulnerability to infectious diseases (e.g., tuberculosis) or infectious disease-associated pathology (e.g., HIV). Perhaps not surprisingly given the long co-evolution between HCMV and humans, the virus has also been associated with beneficial effects, such as increased vaccine responsiveness, heterologous protection against infections, and protection against relapse in the context of leukemia. Here, we provide an overview of this literature. Ultimately, we focus on one other deleterious effect of HCMV, namely the emerging literature suggesting that HCMV plays a pathophysiological role in psychiatric illness, particularly depression and schizophrenia. We discuss this literature through the lens of psychological stress and inflammation, two well-established risk factors for psychiatric illness that are also known to predispose to reactivation of HCMV.
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25
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Schonfeld L, Jaehne EJ, Ogden AR, Spiers JG, Hogarth S, van den Buuse M. Differential effects of chronic adolescent glucocorticoid or methamphetamine on drug-induced locomotor hyperactivity and disruption of prepulse inhibition in adulthood in mice. Prog Neuropsychopharmacol Biol Psychiatry 2022; 117:110552. [PMID: 35337859 DOI: 10.1016/j.pnpbp.2022.110552] [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: 12/08/2021] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 11/29/2022]
Abstract
Sensitization of dopaminergic activity has been suggested as an underlying mechanism in the psychotic symptoms of schizophrenia. Adolescent stress and chronic abuse of methamphetamine (Meth) are well-known risk factors for psychosis and schizophrenia; however it remains unknown how these factors compare in terms of dopaminergic behavioural sensitization in adulthood. In addition, while Brain-Derived Neurotrophic Factor (BDNF) has been implicated in dopaminergic activity and schizophrenia, its role in behavioural sensitization remains unclear. In this study we therefore compared the effect of chronic adolescent treatment with the stress hormone, corticosterone (Cort), or with Meth, on drug-induced locomotor hyperactivity and disruption of prepulse inhibition in adulthood in BDNF heterozygous mice and their wild-type controls, as well as on dopamine receptor gene expression. Between 6 and 9 weeks of age, the animals either received Cort in the drinking water or were treated with an escalating Meth dose protocol. In adulthood, Cort-pretreated mice showed significantly reduced Meth-induced locomotor hyperactivity compared to vehicle-pretreated mice. In contrast, Meth hyperlocomotion was significantly enhanced in animals pretreated with the drug in adolescence. There were no effects of either pretreatment on prepulse inhibition. BDNF Het mice showed greater Meth-induced hyperlocomotion and lower prepulse inhibition than WT mice. There were no effects of either pretreatment on D1 or D2 gene expression in either the dorsal or ventral striatum, while D3 mRNA was shown to be reduced in male mice only irrespective of genotype. These results suggest that in adolescence, chronically elevated glucocorticoid levels, a component of chronic stress, do not cause dopaminergic sensitization adulthood, in contrast to the effect of chronic Meth treatment in the same age period. BDNF does not appear to be involved in the effects of chronic Cort or chronic Meth.
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Affiliation(s)
- Lina Schonfeld
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Emily J Jaehne
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Alexandra R Ogden
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Jereme G Spiers
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia
| | - Samuel Hogarth
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Maarten van den Buuse
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, Australia; Department of Pharmacology, University of Melbourne, Australia; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Australia.
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26
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Culbert KM, Thakkar KN, Klump KL. Risk for midlife psychosis in women: critical gaps and opportunities in exploring perimenopause and ovarian hormones as mechanisms of risk. Psychol Med 2022; 52:1612-1620. [PMID: 35582864 PMCID: PMC9743981 DOI: 10.1017/s0033291722001143] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Women show a heightened risk for psychosis in midlife that is not observed in men. The menopausal transition (i.e. perimenopause) and accompanying changes in ovarian hormones are theorized to account for this midlife increase in risk. This narrative review aims to empirically examine these theories by reviewing studies of midlife and perimenopausal psychosis risk in women and potential ovarian hormone mechanisms of effects. Clinical and pre-clinical studies examining the effects of midlife age, menopausal stage, and ovarian hormones across adulthood on psychosis risk were identified. Synthesis of this body of work revealed that the peak ages of midlife psychosis risk in women overlap with the age range of key menopausal stages (especially the perimenopausal transition), although studies directly assessing menopausal stage are lacking. Studies examining ovarian hormone effects have almost exclusively focused on earlier developmental stages and events (e.g. pregnancy, the menstrual cycle) and show increases in psychotic symptoms in women and female rats during periods of lower estradiol levels. Estrogen treatment also tends to enhance the effects of neuroleptics in females across species at various reproductive phases. Initial data are promising in suggesting a role for menopausal stage and ovarian hormones in psychosis risk. However, critical gaps in our knowledge base remain, as there is a tendency to rely on indirect and proxy measures of menopausal status and hormones. Opportunities for future research are discussed with the goal of increasing research in this critical area of women's health.
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Affiliation(s)
| | - Katharine N. Thakkar
- Department of Psychology, Michigan State University, East Lansing, MI
- Division of Psychiatry and Behavioral Medicine, Michigan State University, Grand Rapids, MI
| | - Kelly L. Klump
- Department of Psychology, Michigan State University, East Lansing, MI
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27
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Walker EF, Goldsmith DR. Schizophrenia: A scientific graveyard or a pragmatically useful diagnostic construct? Schizophr Res 2022; 242:141-143. [PMID: 35090774 PMCID: PMC9112231 DOI: 10.1016/j.schres.2022.01.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 12/31/2022]
Affiliation(s)
- Elaine F. Walker
- Department of Psychology, Emory University, Atlanta, GA 30322, United States of America,Corresponding author at: Emory University, Department of Psychology, 36 Eagle Row, Atlanta, GA 30322, United States of America. (E.F. Walker)
| | - David R. Goldsmith
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA 30322, United States of America
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28
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Green KM, Choi JJ, Ramchandran RS, Silverstein SM. OCT and OCT Angiography Offer New Insights and Opportunities in Schizophrenia Research and Treatment. Front Digit Health 2022; 4:836851. [PMID: 35252961 PMCID: PMC8894243 DOI: 10.3389/fdgth.2022.836851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/21/2022] [Indexed: 11/13/2022] Open
Abstract
The human retina and retinal imaging technologies continue to increasingly gain the attention of schizophrenia researchers. With the same embryologic origin as the brain, the retina offers a window into neurovascular changes that may underlie disease. Recently, two technologies that have already revolutionized the field of ophthalmology, optical coherence tomography (OCT), and a functional extension of this, optical coherence tomography angiography (OCTA), have gained traction. Together, these non-invasive technologies allow for microscopic imaging of both structural and vascular features of the retina. With ease of use and no side effects, these devices are likely to prove powerful digital health tools in the study and treatment of schizophrenia. They may also prove key to discovering disease relevant biomarkers that underly neurodevelopmental and neurodegenerative aspects of conditions such as schizophrenia.
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Affiliation(s)
- Kyle M. Green
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States
| | - Joy J. Choi
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, United States
| | - Rajeev S. Ramchandran
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY, United States
| | - Steven M. Silverstein
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, United States
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, United States
- Center for Visual Science, University of Rochester, Rochester, NY, United States
- *Correspondence: Steven M. Silverstein
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29
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Varela RB, Cararo JH, Tye SJ, Carvalho AF, Valvassori SS, Fries GR, Quevedo J. Contributions of epigenetic inheritance to the predisposition of major psychiatric disorders: theoretical framework, evidence, and implications. Neurosci Biobehav Rev 2022; 135:104579. [DOI: 10.1016/j.neubiorev.2022.104579] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/10/2022] [Accepted: 02/11/2022] [Indexed: 02/08/2023]
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30
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Aberizk K, Collins MA, Addington J, Bearden CE, Cadenhead KS, Cornblatt BA, Mathalon DH, McGlashan TH, Perkins DO, Tsuang MT, Woods SW, Cannon TD, Walker EF. Life Event Stress and Reduced Cortical Thickness in Youth at Clinical High Risk for Psychosis and Healthy Control Subjects. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2022; 7:171-179. [PMID: 33930604 PMCID: PMC8551305 DOI: 10.1016/j.bpsc.2021.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/21/2021] [Accepted: 04/20/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND A decline in cortical thickness during early life appears to be a normal neuromaturational process. Accelerated cortical thinning has been linked with conversion to psychosis among individuals at clinical high risk for psychosis (CHR-P). Previous research indicates that exposure to life event stress (LES) is associated with exaggerated cortical thinning in both healthy and clinical populations, and LES is also linked with conversion to psychosis in CHR-P. To date, there are no reports on the relationship of LES with cortical thickness in CHR-P. This study examines this relationship and whether LES is linked with cortical thinning to a greater degree in individuals at CHR-P who convert to psychosis compared with individuals at CHR-P who do not convert and healthy control subjects. METHODS Controlling for age and gender (364 male, 262 female), this study examined associations between LES and baseline cortical thickness in 436 individuals at CHR-P (375 nonconverters and 61 converters) and 190 comparison subjects in the North American Prodrome Longitudinal Study. RESULTS Findings indicate that prebaseline cumulative LES is associated with reduced baseline cortical thickness in several regions among the CHR-P and control groups. Evidence suggests that LES is a risk factor for thinner cortex to the same extent across diagnostic groups, while CHR-P status is linked with thinner cortex in select regions after accounting for LES. CONCLUSIONS This research provides additional evidence to support the role of LES in cortical thinning in both healthy youth and those at CHR-P. Potential underlying mechanisms of the findings and implications for future research are discussed.
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Affiliation(s)
- Katrina Aberizk
- Department of Psychology, Emory University, Atlanta, Georgia.
| | - Meghan A Collins
- Department of Psychology, Yale University, New Haven, Connecticut
| | - Jean Addington
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Carrie E Bearden
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, California; Department of Psychology, University of California Los Angeles, Los Angeles, California
| | - Kristin S Cadenhead
- Department of Psychiatry, University of California San Diego, San Diego, California
| | | | - Daniel H Mathalon
- Department of Psychiatry, University of California San Francisco, San Francisco, California; San Francisco VA Medical Center, San Francisco, California
| | | | - Diana O Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina
| | - Ming T Tsuang
- Department of Psychiatry, University of California San Diego, San Diego, California
| | - Scott W Woods
- Department of Psychiatry, Yale University, New Haven, Connecticut
| | - Tyrone D Cannon
- Department of Psychology, Yale University, New Haven, Connecticut; Department of Psychiatry, Yale University, New Haven, Connecticut
| | - Elaine F Walker
- Department of Psychology, Emory University, Atlanta, Georgia
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31
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Zhang Y, Coid J, Liu X, Zhang Y, Sun H, Li X, Tang W, Wang Q, Deng W, Zhao L, Ma X, Meng Y, Li M, Wang H, Chen T, Lv Q, Guo W, Li T. Effects of Stress in Adaptation to Undergraduate Life on Psychiatric Morbidity: Mediating Effects of Early Trauma and Adverse Family Factors. Front Psychiatry 2022; 13:538200. [PMID: 35463528 PMCID: PMC9023758 DOI: 10.3389/fpsyt.2022.538200] [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: 02/26/2020] [Accepted: 02/15/2022] [Indexed: 11/13/2022] Open
Abstract
PURPOSE University students experience high levels of stress, and the prevalence of depression is higher than in the general population. The reason is not clear. More effective interventions and better prevention are needed. METHODS We did annual cross-sectional surveys of Chinese undergraduates 2014-2018 (mean age 18.7 [SD 2.1], N = 39,573). We measured adaptation to university life using the Adolescent Self-rating Life Events Checklist (ASLEC) and common mental disorders using standardized self-report instruments. Regression analyses identified associations between childhood maltreatment, current family problems, stress in adaptation to undergraduate life, and psychiatric morbidity. Mediation analyses further tested relationships between these factors. RESULTS Childhood maltreatment, current family problems, stress in adaptation, and psychiatric morbidity were all significantly associated with each other. The strongest association between childhood experiences and psychiatric morbidity was for sexual abuse and depression (OR = 3.39, 95%CI: 2.38-4.83, p < 0.001) and between stress from adaptation and somatic disorder (OR = 4.54, 95%CI: 3.62-5.68, p < 0.001). Associations between childhood maltreatment and stress from university life were partly mediated by psychiatric morbidity. Associations between family problems and psychiatric morbidity were mediated by stress from university life. CONCLUSIONS Stress from adaptation to university life and pressures from academic study exert stronger effects on psychiatric morbidity among students than childhood traumatic experiences and current family problems, although these factors are closely interrelated. Mental health services for students should focus on adaptation to university life and pressures from academic study as well as external factors of childhood trauma and family problems.
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Affiliation(s)
- Yingzhe Zhang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China.,West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Jeremy Coid
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Xiang Liu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Yamin Zhang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Huan Sun
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Xiaojing Li
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Wanjie Tang
- Centre for Psychology Education and Consultation, Sichuan University, Chengdu, China
| | - Qiang Wang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Wei Deng
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Liansheng Zhao
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Xiaohong Ma
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Yajing Meng
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Mingli Li
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Huiyao Wang
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Ting Chen
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
| | - Qiuyue Lv
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Wanjun Guo
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China
| | - Tao Li
- Mental Health Center and Psychiatric Laboratory, The State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China.,West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China.,Mental Health Education Center, Sichuan University, Chengdu, China.,Centre for Psychology Education and Consultation, Sichuan University, Chengdu, China.,Hangzhou Seventh People's Hospital and Affiliated Mental Health Center, Zhejiang University School of Medicine, Hangzhou, China
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32
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Zhang M, Zhao S, Chen Y, Zhang X, Li Y, Xu P, Huang Y, Sun X. Chronic Stress in Bipolar Disorders Across the Different Clinical States: Roles of HPA Axis and Personality. Neuropsychiatr Dis Treat 2022; 18:1715-1725. [PMID: 35983536 PMCID: PMC9380733 DOI: 10.2147/ndt.s372358] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Chronic stress has been linked to the pathophysiology of bipolar disorder (BD); however, the underlying mechanism remains unclear. In BD patients, hypothalamic-pituitary-adrenal (HPA) axis activity is associated with stress. This study aimed to examine the relationship between HPA axis activity and BD symptoms in various clinical states, as well as how personality influences the process. METHODS This study investigated the differences in HPA axis activity among four BD states. We enrolled 813 BD patients in an 8-week longitudinal study to examine the relationship between HPA axis activity and symptom trajectories using dynamic temporal warping (DTW) analysis and an unsupervised machine learning technique. Furthermore, using mediation analyses, the relationship between the HPA axis, personality, and BD symptoms was investigated. RESULTS Analysis of variance (ANOVA) analysis showed that glucocorticoid cortisol (CORT) and adrenocorticotropin (ACTH) did not differ significantly among the four clinical states of BD. The DTW integrating clustering analysis revealed that the two clusters were optimal, with cluster 1 characterized by severe manic symptoms, which then improved, and cluster 2, characterized by milder manic severity, which also improved. The two clusters showed different ACTH levels (t = 2.289, p = 0.022), and logistic regression analysis revealed a slight positive association between ACTH levels and cluster 1. Furthermore, the mediation analysis indicated that ACTH influences curative efficacy via conscientiousness (βc =0.103, p=0.001). DISCUSSION In conclusion, we found that a higher level of ACTH is associated with severe manic symptoms, indicating a chronic stress response in BD patients. Additionally, the ACTH levels affect short-term BD curative efficacy via the mediation of conscientiousness, providing a psychotherapeutic strategy direction for BD.
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Affiliation(s)
- Manxue Zhang
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Shengnan Zhao
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yuexin Chen
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Xu Zhang
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yuwei Li
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Peiwei Xu
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yi Huang
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,Brain Research Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Xueli Sun
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
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33
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Yang F, Hong X, Tao J, Chen Y, Zhang Y, Xiao H. Hair cortisol, social support, personality traits, and clinical course: differences in schizophrenia and bipolar disorder. Brain Behav 2021; 11:e2412. [PMID: 34775692 PMCID: PMC8671778 DOI: 10.1002/brb3.2412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/01/2021] [Accepted: 10/19/2021] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the differences in the relationship between hair cortisol concentration (HCC) and psychosocial stress, social support, clinical features, clinical course, and outcome in schizophrenia and bipolar disorder. METHODS A total of 109 schizophrenia patients, 93 bipolar disorder patients and 86 healthy controls between 18 and 60 years old were enrolled in the study. Linear regression and factor analysis were employed to examine and compare the relationship between HCC and childhood trauma, the number of stressful life events, the amount of social support in the three months before the hair cortisol assessment, clinical fearures, clinical course, and outcome in schizophrenia and bipolar disorder. RESULTS HCC is significantly associated with clinical syndromes, including depression-anxiety factor of Positive and Negative Syndrome Scale in schizophrenia patients, and thought disorder in bipolar disorder patients. However, HCC is positively related to social support and personality traits only in schizophrenia patients but not in bipolar disorder patients. Factor analysis indicates schizophrenia and bipolar disorder share a very similar but somewhat different structure in terms of HCC, psychosocial stress, social support, clinical features, clinical course, and outcome. CONCLUSION Findings support that schizophrenia and bipolar disoder have a significant overlap in both clinical characteristics and enviromental risk factors. Aberrant HCC contributes to the complexity of clinical characteristics mainly in schizophrenia.
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Affiliation(s)
- Fuzhong Yang
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiangfei Hong
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jing Tao
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yupeng Chen
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yanbo Zhang
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Hua Xiao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
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34
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Torrecilla P, Barrantes-Vidal N. Examining the Relationship Between Hair Cortisol With Stress-Related and Transdiagnostic Subclinical Measures. Front Psychiatry 2021; 12:746155. [PMID: 34858226 PMCID: PMC8631911 DOI: 10.3389/fpsyt.2021.746155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/22/2021] [Indexed: 11/30/2022] Open
Abstract
Background: Hair cortisol concentrations (HCC) provide a retrospective examination of long-term cortisol production as a measure of the hypothalamic-pituitary-adrenal (HPA) axis functioning, one of the major neural systems implicated in mediating the effects of stress on mental illness. However, evidence about the relationship between HCC with stressors and symptoms is scattered. In the present study, we aimed to examine the association between HCC and a wide range of stress-related and transdiagnostic subclinical measures in a sample of non-clinical young adults with a wide distribution of schizotypy. Methods: A total sample of 132 non-clinical young adults recruited at college and technical schools oversampled for schizotypy scores were assessed on distal and proximal stressful experiences, appraisals of stress, traits and symptoms of the affective, psychosis and dissociation spectrums, as well as stress-buffering measures, and provided 3 cm-hair samples. Results: No significant associations were found between HCC and any of the stress-related and subclinical measures. Only suspiciousness and disorganization showed a trend for a positive association with HCC but the magnitude was small. Conclusions: The present findings support previous studies indicating an overall lack of concordance between a broad range of stress-related and (sub)clinical phenotypic measures with hair cortisol. This study examined for the first time the relationship of HCC with the non-clinical expression of the psychosis spectrum, that is, schizotypy, which complements previous studies on clinical high risk and established psychosis and offers a promising strategy for studying possible HPA dysfunctions characterizing the subclinical psychosis continuum without the confounds associated to clinical psychosis.
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Affiliation(s)
- Pilar Torrecilla
- Departament de Psicologia Clínica i de la Salut, Facultat de Psicologia, Edifici B, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Neus Barrantes-Vidal
- Departament de Psicologia Clínica i de la Salut, Facultat de Psicologia, Edifici B, Universitat Autònoma de Barcelona, Barcelona, Spain
- Departament de Salut Mental, Sant Pere Claver—Fundació Sanitària, Barcelona, Spain
- Centre for Biomedical Research in Mental Health (CIBERSAM), Madrid, Spain
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Analysis of Molecular Networks in the Cerebellum in Chronic Schizophrenia: Modulation by Early Postnatal Life Stressors in Murine Models. Int J Mol Sci 2021; 22:ijms221810076. [PMID: 34576238 PMCID: PMC8469990 DOI: 10.3390/ijms221810076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 01/17/2023] Open
Abstract
Despite the growing importance of the cerebellum as a region highly vulnerable to accumulating molecular errors in schizophrenia, limited information is available regarding altered molecular networks with potential therapeutic targets. To identify altered networks, we conducted one-shot liquid chromatography–tandem mass spectrometry in postmortem cerebellar cortex in schizophrenia and healthy individuals followed by bioinformatic analysis (PXD024937 identifier in ProteomeXchange repository). A total of 108 up-regulated proteins were enriched in stress-related proteins, half of which were also enriched in axonal cytoskeletal organization and vesicle-mediated transport. A total of 142 down-regulated proteins showed an enrichment in proteins involved in mitochondrial disease, most of which were also enriched in energy-related biological functions. Network analysis identified a mixed module of mainly axonal-related pathways for up-regulated proteins with a high number of interactions for stress-related proteins. Energy metabolism and neutrophil degranulation modules were found for down-regulated proteins. Further, two double-hit postnatal stress murine models based on maternal deprivation combined with social isolation or chronic restraint stress were used to investigate the most robust candidates of generated networks. CLASP1 from the axonal module in the model of maternal deprivation was combined with social isolation, while YWHAZ was not altered in either model. METTL7A from the degranulation pathway was reduced in both models and was identified as altered also in previous gene expression studies, while NDUFB9 from the energy network was reduced only in the model of maternal deprivation combined with social isolation. This work provides altered stress- and mitochondrial disease-related proteins involved in energy, immune and axonal networks in the cerebellum in schizophrenia as possible novel targets for therapeutic interventions and suggests that METTL7A is a possible relevant altered stress-related protein in this context.
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Napoli E, Flores A, Mansuri Y, Hagerman RJ, Giulivi C. Sulforaphane improves mitochondrial metabolism in fibroblasts from patients with fragile X-associated tremor and ataxia syndrome. Neurobiol Dis 2021; 157:105427. [PMID: 34153466 PMCID: PMC8475276 DOI: 10.1016/j.nbd.2021.105427] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/10/2021] [Accepted: 06/16/2021] [Indexed: 02/09/2023] Open
Abstract
CGG expansions between 55 and 200 in the 5'-untranslated region of the fragile-X mental retardation gene (FMR1) increase the risk of developing the late-onset debilitating neuromuscular disease Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS). While the science behind this mutation, as a paradigm for RNA-mediated nucleotide triplet repeat expansion diseases, has progressed rapidly, no treatment has proven effective at delaying the onset or decreasing morbidity, especially at later stages of the disease. Here, we demonstrated the beneficial effect of the phytochemical sulforaphane (SFN), exerted through NRF2-dependent and independent manner, on pathways relevant to brain function, bioenergetics, unfolded protein response, proteosome, antioxidant defenses, and iron metabolism in fibroblasts from FXTAS-affected subjects at all disease stages. This study paves the way for future clinical studies with SFN in the treatment of FXTAS, substantiated by the established use of this agent in clinical trials of diseases with NRF2 dysregulation and in which age is the leading risk factor.
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Affiliation(s)
- Eleonora Napoli
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616
| | - Amanda Flores
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616;,Department of Biochemistry, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico
| | - Yasmeen Mansuri
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616
| | - Randi J. Hagerman
- Department of Pediatrics, University of California Davis Medical Center, Sacramento, CA;,Medical Investigations of Neurodevelopmental Disorders (M.I.N.D.) Institute, University of California Davis, CA 95817
| | - Cecilia Giulivi
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, United States of America; Medical Investigations of Neurodevelopmental Disorders (M.I.N.D.) Institute, University of California Davis, CA 95817, USA.
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Muñoz-Samons D, Tor J, Rodríguez-Pascual M, Álvarez-Subiela X, Sugranyes G, de la Serna E, Puig O, Dolz M, Baeza I. Recent stressful life events and stress sensitivity in children and adolescents at clinical risk for psychosis. Psychiatry Res 2021; 303:114017. [PMID: 34217983 DOI: 10.1016/j.psychres.2021.114017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/16/2021] [Indexed: 12/18/2022]
Abstract
Although psychosocial stress is consistently described as a casual factor for psychosis, the role of recent stressful life events (SLEs) is inconclusive. Studies with subjects with psychosis risk syndrome (PRS), fail to show a large number of SLEs but suggest greater stress sensitivity in these populations. We evaluate the presence of recent SLEs and stress sensitivity, and their relationship with symptoms and functionality in a sample consisting exclusively of help-seeking children and adolescents. Seventy-two 10- to 17-year-old help-seeking subjects who met PRS criteria and forty-two healthy control (HC) subjects participated in a naturalistic multi-site study. Measures of stress included the Stressful Life Events Schedule (SLES) and the G4 item of the Scale for Prodromal Syndromes (SOPS) scale. Child and adolescent PRS subjects presented greater number of SLEs during the previous year, greater total accumulated stress, greater sensitivity to stress, and more impaired tolerance to normal stress than did HC subjects. Stress measures showed a relationship with positive and negative attenuated symptoms, clinical variables and functionality. Our results support the role of stress in the PRS status. It reinforces the suggested differences for clinical presentation of PRS in terms of age, highlighting the importance of gathering data on the under-18 population.
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Affiliation(s)
- Daniel Muñoz-Samons
- Child and Adolescent Mental Health Research Group, Institut de Recerca Sant Joan de Déu, Santa Rosa, 39-57, 08950 Esplugues de Llobregat, Barcelona, Spain; Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de Déu of Barcelona, Passeig Sant Joan de Déu, 002, 08950 Esplugues de Llobregat, Barcelona, Spain.
| | - Jordina Tor
- Child and Adolescent Mental Health Research Group, Institut de Recerca Sant Joan de Déu, Santa Rosa, 39-57, 08950 Esplugues de Llobregat, Barcelona, Spain; Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de Déu of Barcelona, Passeig Sant Joan de Déu, 002, 08950 Esplugues de Llobregat, Barcelona, Spain
| | - Marta Rodríguez-Pascual
- Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de Déu of Barcelona, Passeig Sant Joan de Déu, 002, 08950 Esplugues de Llobregat, Barcelona, Spain
| | - Xavier Álvarez-Subiela
- Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de Déu of Barcelona, Passeig Sant Joan de Déu, 002, 08950 Esplugues de Llobregat, Barcelona, Spain
| | - Gisela Sugranyes
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain; Department of Child and Adolescent Psychiatry and Psychology, Hospital Clinic Universitari of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (2017SGR881), Spain. Villarroel 170, 08036 Barcelona, Spain; Institut Clinic of Neurosciences, CERCA-IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Villarroel 170, 08036 Barcelona, Spain
| | - Elena de la Serna
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain; Department of Child and Adolescent Psychiatry and Psychology, Hospital Clinic Universitari of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (2017SGR881), Spain. Villarroel 170, 08036 Barcelona, Spain; Institut Clinic of Neurosciences, CERCA-IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Villarroel 170, 08036 Barcelona, Spain
| | - Olga Puig
- Department of Child and Adolescent Psychiatry and Psychology, Hospital Clinic Universitari of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (2017SGR881), Spain. Villarroel 170, 08036 Barcelona, Spain
| | - Montse Dolz
- Child and Adolescent Mental Health Research Group, Institut de Recerca Sant Joan de Déu, Santa Rosa, 39-57, 08950 Esplugues de Llobregat, Barcelona, Spain; Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de Déu of Barcelona, Passeig Sant Joan de Déu, 002, 08950 Esplugues de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain
| | - Inmaculada Baeza
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain; Department of Child and Adolescent Psychiatry and Psychology, Hospital Clinic Universitari of Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (2017SGR881), Spain. Villarroel 170, 08036 Barcelona, Spain; Institut Clinic of Neurosciences, CERCA-IDIBAPS (Institut d'Investigacions Biomèdiques August Pi Sunyer), Villarroel 170, 08036 Barcelona, Spain; Department of Psychiatry and Psychobiology, Health Sciences Division, University of Barcelona, Casanova 143, 08036 Barcelona, Spain
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Adjorlolo S, Setordzi M. Psychosis in adolescents in Africa: A scoping review for current understanding and future directions. COGENT PSYCHOLOGY 2021. [DOI: 10.1080/23311908.2021.1949173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Samuel Adjorlolo
- Department of Mental Health, School of Nursing and Midwifery, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
- Research and Grant Institute of Ghana, Accra, Ghana
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Yan YJ, Huang J, Lui SSY, Cheung EFC, Madsen KH, Chan RCK. The effect of effort-reward imbalance on brain structure and resting-state functional connectivity in individuals with high levels of schizotypal traits. Cogn Neuropsychiatry 2021; 26:166-182. [PMID: 33706673 DOI: 10.1080/13546805.2021.1899906] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Effort-reward imbalance (ERI) is a typical psychosocial stress. Schizotypal traits are attenuated features of schizophrenia in the general population. According to the diathesis-stress model, schizotypal traits and psychosocial stress contribute to the onset of schizophrenia. However, few studies examined the effects of these factors on brain alterations. This study aimed to examine relationships between ERI, schizotypal traits and brain structures and functions. METHODS We recruited 37 (13 male, 24 female) participants with high levels of schizotypal traits and 36 (12 male, 24 female) participants with low levels of schizotypal traits by the Schizotypal Personality Questionnaire (SPQ). The Chinese school version of the effort-reward imbalance questionnaire (C-ERI-S) was used to measure ERI. We conducted the voxel-based morphometry (VBM) and whole brain resting-state functional connectivity (rsFC) analysis using reward or stress-related regions as seeds. RESULTS Participants with high levels of schizotypal traits were more likely to perceive ERI. The severity of ERI was correlated with grey matter volume (GMV) reduction of the left pallidum and altered rsFC among the prefrontal, striatum and cerebellum in participants with high levels of schizotypal traits. CONCLUSION ERI is associated with GMV reduction and altered rsFC in individuals with high levels of schizotypal traits.
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Affiliation(s)
- Yong-Jie Yan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Sino-Danish College of University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Sino-Danish Centre for Education and Research, Beijing, People's Republic of China
| | - Jia Huang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Department of Psychology, the University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Simon S Y Lui
- Castle Peak Hospital, Hong Kong, People's Republic of China.,Department of Psychiatry, University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | | | - Kristoffer H Madsen
- Sino-Danish College of University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Sino-Danish Centre for Education and Research, Beijing, People's Republic of China.,Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.,Department of Applied Mathematics and Computer Science, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Sino-Danish College of University of Chinese Academy of Sciences, Beijing, People's Republic of China.,Sino-Danish Centre for Education and Research, Beijing, People's Republic of China.,Department of Psychology, the University of Chinese Academy of Sciences, Beijing, People's Republic of China
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40
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Pairing of neonatal phencyclidine exposure and acute adolescent stress in male rats as a novel developmental model of schizophrenia. Behav Brain Res 2021; 409:113308. [PMID: 33872663 DOI: 10.1016/j.bbr.2021.113308] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/23/2021] [Accepted: 04/13/2021] [Indexed: 01/01/2023]
Abstract
Improved understanding of the neurophysiological and neurochemical mechanisms underlying schizophrenia is essential for the identification of biological markers and developing new therapeutic targets. The development of behaviorally faithful, predictive animal models is crucial to this endeavor. We have developed a novel two-hit paradigm designed to recapitulate in rodents the developmental process leading to appearance of human schizophrenia symptomatology. The model pairs neonatal administration of the NMDA receptor (NMDAR) open-channel blocker phencyclidine (PCP 10 mg/kg) to male rats at 7, 9 and 11 days of age, with later adolescent exposure (34 days of age) to a single prolonged stress paradigm consisting of 2 h restraint, followed by 20 min of forced swimming. Four experimental groups were examined: vehicle and no stress (VEH-NS), vehicle plus stress (VEH-S), PCP and no stress (PCP-NS), and PCP plus stress (PCP-S). Only pairing of neonatal PCP with single prolonged adolescent stress caused deficits in novel object recognition memory and increased anxiety-like behavior in the elevated plus maze task, without altering locomotor activity. In a separate cohort of animals, the PCP-S group showed significant reduction in magnitude of hippocampal long-term potentiation (LTP) at Schaffer collateral-CA1 synapses following a single pair of theta-burst stimuli (TBS), while LTP was diminished in both PCP treated groups when elicited by a second pair of TBS. These results suggest that the combination of neonatal PCP and acute adolescent stress are necessary for lasting cognitive impairment and anxiety-like phenotype, and that these behavioral impairments may be due to deficits in LTP in hippocampus, and perhaps elsewhere in the brain.
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41
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Karcher NR, Schiffman J, Barch DM. Environmental Risk Factors and Psychotic-like Experiences in Children Aged 9-10. J Am Acad Child Adolesc Psychiatry 2021; 60:490-500. [PMID: 32682894 PMCID: PMC7895444 DOI: 10.1016/j.jaac.2020.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/30/2020] [Accepted: 07/09/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Research implicates environmental risk factors, including correlates of urbanicity, deprivation, and environmental toxins, in psychotic-like experiences (PLEs). The current study examined associations between several types of environmental risk factors and PLEs in school-age children, whether these associations were specific to PLEs or generalized to other psychopathology, and examined possible neural mechanisms for significant associations. METHOD The current study used cross-sectional data from 10,328 children 9-10 years old from the Adolescent Brain Cognitive Development (ABCD) Study. Hierarchical linear models examined associations between PLEs and geocoded environmental risk factors and whether associations generalized to internalizing/externalizing symptoms. Mediation models examined evidence of structural magnetic resonance imaging abnormalities (eg, intracranial volume) potentially mediating associations between PLEs and environmental risk factors. RESULTS Specific types of environmental risk factors, namely, measures of urbanicity (eg, drug offense exposure, less perception of neighborhood safety), deprivation (eg, overall deprivation, poverty rate), and lead exposure risk, were associated with PLEs. These associations showed evidence of stronger associations with PLEs than internalizing/externalizing symptoms (especially overall deprivation, poverty, drug offense exposure, and lead exposure risk). There was evidence that brain volume mediated between 11% and 25% of associations of poverty, perception of neighborhood safety, and lead exposure risk with PLEs. CONCLUSION Although in the context of cross-sectional analyses, this evidence is consistent with neural measures partially mediating the association between PLEs and environmental exposures. This study also replicated and extended recent findings of associations between PLEs and environmental exposures, finding evidence for specific associations with correlates of urbanicity, deprivation, and lead exposure risk.
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Affiliation(s)
| | - Jason Schiffman
- University of Maryland, Baltimore County; University of California, Irvine
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42
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Liu X, Wolloh Ii MG, Lin X, Qiu X, Qing Z, Wang W, Liu F, Wu W, Yang X, Otake Y, Luo X, Wang Z, Lu D. The association between sibling bullying and psychotic-like experiences among children age 11-16 years in China. J Affect Disord 2021; 284:31-37. [PMID: 33582430 DOI: 10.1016/j.jad.2021.01.073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 01/09/2021] [Accepted: 01/30/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Few studies exist on sibling bullying or even sibling aggression more generally in the past 30 years. Studies of sibling bullying have shown that sibling bullying may associate with depression, anxiety, self-harm, suicide ideation in early adulthood. Nevertheless, few studies have explored the relationship between sibling victimization types and the occurrence of psychosis, not to mention that psychotic-like experiences (PLEs) always occur before psychotic disorders. Therefore, the current study aims to examine the association between sibling bullying and PLEs among children age 11-16 years in China. METHOD This is a cross-sectional study which included 3231 students from eight junior middle schools in three cities of Hunan Province, China. Frequency and types of sibling bullying was assessed with Sibling Bullying Questionnaire and PLEs was assessed with Community Assessment Psychic Experiences-42. RESULTS The percentage of sibling bullying were 12.9% for victimization and 10.8% for perpetration. Sibling bullying plays as an independent influence factor for all subtypes of PLEs, and verbal victimization was the most important risk factor in developing different subtypes of PLEs followed by physical victimization and verbal perpetration. CONCLUSION The current study found that sibling bullying is associated with PLEs. Intervention programs should be conducted to focus on those children and adolescents who are involved in multiple types of sibling victimization or perpetration.
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Affiliation(s)
- Xiaoqun Liu
- Department of Women & Children Health, XiangYa School of Public Health, Central South University, China
| | - Moses G Wolloh Ii
- Department of Women & Children Health, XiangYa School of Public Health, Central South University, China
| | - Xiaoling Lin
- School of Nursing, Sun Yat-Sen University, China
| | - Xiaoyan Qiu
- Institute of Higher Education, Hunan University of Science and Engineering, China
| | - Zaihua Qing
- Office of Student affair, Hunan University of Finance and Economic, China
| | | | | | | | - Xinhua Yang
- Institute of Education, Rural Children and Adolescents Research Center for Health Promotion, Key Research Institute of Philosophies and Social Sciences in Hunan Province, Hunan Agricultural University, China
| | - Yoichiro Otake
- Mental Health Institute, The Second Xiangya Hospital, Central South University, China
| | - Xuerong Luo
- Mental Health Institute, The Second Xiangya Hospital, Central South University, China
| | - Zheng Wang
- Qilu Normal University College of teacher education, China.
| | - Dali Lu
- Xiamen Xianyue Hospital, China.
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Studerus E, Ittig S, Beck K, Del Cacho N, Vila-Badia R, Butjosa A, Usall J, Riecher-Rössler A. Relation between self-perceived stress, psychopathological symptoms and the stress hormone prolactin in emerging psychosis. J Psychiatr Res 2021; 136:428-434. [PMID: 32948308 DOI: 10.1016/j.jpsychires.2020.06.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Psychosocial stress and the stress hormone prolactin are assumed to play an important role in the pathogenesis of schizophrenia and related psychoses, and have been frequently observed to be increased in antipsychotic-naïve patients with a clinical high risk for psychosis (CHR-P) or first episode of psychosis (FEP). The aim of this study was to further elucidate the relationships between self-perceived stress, psychopathological symptoms and prolactin levels in these patients. METHODS In this cross-sectional study, 45 healthy controls, 31 CHR-P patients and 87 FEP patients were recruited from two different study centers. Prolactin was measured under standardized conditions between 8 and 10 am. All patients were antipsychotic-naïve and not taking any prolactin influencing medication. Self-perceived stress during the last month was measured with the perceived stress scale (PSS-10) immediately before blood taking. RESULTS Both CHR-P and FEP patients showed significantly higher levels of self-perceived stress and prolactin than controls. Hyperprolactinemia (i.e. prolactin levels above the reference range) was observed in 26% of CHR-P and 45% of FEP patients. Self-perceived stress was significantly positively associated with affective symptoms, but not with other symptoms. There was no significant association between self-perceived stress and prolactin levels. CONCLUSION Our results confirm that CHR-P and FEP patients have higher stress levels than healthy controls and frequently have hyperprolactinemia, independent of antipsychotic medication. However, although it is well established that prolactin increases in response to stress, our results do not support the notion that increased prolactin levels in these patients are due to stress.
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Affiliation(s)
- Erich Studerus
- Center for Gender Research and Early Detection, University of Basel Psychiatric Hospital, Basel, Switzerland; University of Basel, Department of Psychology, Division of Personality and Developmental Psychology, Basel, Switzerland.
| | - Sarah Ittig
- Center for Gender Research and Early Detection, University of Basel Psychiatric Hospital, Basel, Switzerland
| | - Katharina Beck
- Center for Gender Research and Early Detection, University of Basel Psychiatric Hospital, Basel, Switzerland; University of Basel, Division of Clinical Psychology and Epidemiology, Department of Psychology, Basel, Switzerland
| | - Nuria Del Cacho
- Parc Sanitari Sant Joan de Déu, Research and Development Unit, Sant Boi de Llobregat, Spain
| | - Regina Vila-Badia
- Parc Sanitari Sant Joan de Déu, Research and Development Unit, Sant Boi de Llobregat, Spain
| | - Anna Butjosa
- Parc Sanitari Sant Joan de Déu, Research and Development Unit, Sant Boi de Llobregat, Spain
| | - Judith Usall
- Parc Sanitari Sant Joan de Déu, Research and Development Unit, Sant Boi de Llobregat, Spain
| | - Anita Riecher-Rössler
- Center for Gender Research and Early Detection, University of Basel Psychiatric Hospital, Basel, Switzerland
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Pelletier-Baldelli A, Strauss GP, Kuhney FS, Chun C, Gupta T, Ellman LM, Schiffman J, Mittal VA. Perceived stress influences anhedonia and social functioning in a community sample enriched for psychosis-risk. J Psychiatr Res 2021; 135:96-103. [PMID: 33460840 PMCID: PMC7914219 DOI: 10.1016/j.jpsychires.2021.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/25/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
Existing animal and human research support the causal role of stress in the emergence of anhedonia, and in turn, the influence of anhedonia in social functioning. However, this model has not been tested in relation to psychosis-risk; this literature gap is notable given that both anhedonia and declining social functioning represent key markers of risk of developing a psychotic disorder such as schizophrenia. The current research tested the evidence for this model using structural equation modeling in 240 individuals selected based on a range of psychosis-risk symptomatology from the general community. Results supported this model in comparison with alternative models, and additionally emphasized the direct role of perceived stress in social functioning outcomes. Findings suggest the clinical relevance of targeting early perceptions of stress in individuals meeting psychosis-risk self-report criteria in an effort to prevent subsequent anhedonia and declines in social functioning.
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Affiliation(s)
| | | | - Franchesca S Kuhney
- University of Illinois at Chicago, Department of Psychology, Chicago, IL, USA
| | - Charlotte Chun
- Temple University, Department of Psychology, Philadelphia, PA, USA
| | - Tina Gupta
- Northwestern University, Department of Psychology, Evanston, IL, USA
| | - Lauren M Ellman
- Temple University, Department of Psychology, Philadelphia, PA, USA
| | | | - Vijay A Mittal
- Northwestern University, Department of Psychology, Evanston, IL, USA; Northwestern University, Department of Psychiatry, Evanston, IL, USA; Northwestern University, Institute for Policy Research, Evanston, IL, USA; Northwestern University, Department of Medical Social Science, Evanston, IL, USA
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Gene Expression Meta-Analysis of Cerebellum Samples Supports the FKBP5 Gene-Environment Interaction Model for Schizophrenia. Life (Basel) 2021; 11:life11030190. [PMID: 33673722 PMCID: PMC7997256 DOI: 10.3390/life11030190] [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] [Received: 02/01/2021] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND One of the most studied molecular models of gene-environment interactions is that of FKBP5, which has been shown to interact with childhood adversity to increase the risk of psychiatric disorders, and has been implicated in schizophrenia. While the model predicts up-regulation of FKBP5, previous brain samples gene expression studies yielded inconsistent results. METHODS We performed a systematic gene expression meta-analysis of FKBP5 and NR3C1, a glucocorticoid receptor inhibited by FKBP5, in cerebellum samples of patients with schizophrenia. The gene expression databases GEO, SMRI and those of NIMH were searched, and out of six screened datasets, three were eligible for the meta-analysis (overall 69 with schizophrenia and 78 controls). RESULTS We detected up-regulation of FKBP5 and down-regulation of NR3C1 in schizophrenia, and a negative correlation between their expression patterns. Correlation analysis suggested that the detected differential expression did not result from potential confounding factors. CONCLUSIONS Our results give significant support to the FKBP5 gene-environment interaction model for schizophrenia, which provides a molecular mechanism by which childhood adversity is involved in the development of the disorder. To explore FKBP5's potential as a therapeutic target, a mapping of its differential expression patterns in different brain regions of schizophrenia patients is needed.
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Halbreich U. Mental vaccines: can resilience and adaptation of vulnerable individuals and populations be enhanced before disasters and crises? BJPSYCH ADVANCES 2021. [DOI: 10.1192/bja.2021.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
SUMMARYThe worldwide stress that is a consequence of the COVID-19 pandemic illuminates the need for mental preventive actions. Such ‘mental vaccines’ should be interdisciplinary and culturally sensitive. They should enhance resilience and adaptation of communities as well as vulnerable individuals.
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Bloomfield MA, Chang T, Woodl MJ, Lyons LM, Cheng Z, Bauer‐Staeb C, Hobbs C, Bracke S, Kennerley H, Isham L, Brewin C, Billings J, Greene T, Lewis G. Psychological processes mediating the association between developmental trauma and specific psychotic symptoms in adults: a systematic review and meta-analysis. World Psychiatry 2021; 20:107-123. [PMID: 33432756 PMCID: PMC7801841 DOI: 10.1002/wps.20841] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Experiencing psychological trauma during childhood and/or adolescence is associated with an increased risk of psychosis in adulthood. However, we lack a clear knowledge of how developmental trauma induces vulnerability to psychotic symptoms. Understanding the psychological processes involved in this association is crucial to the development of preventive interventions and improved treatments. We sought to systematically review the literature and combine findings using meta-analytic techniques to establish the potential roles of psychological processes in the associations between developmental trauma and specific psychotic experiences (i.e., hallucinations, delusions and paranoia). Twenty-two studies met our inclusion criteria. We found mediating roles of dissociation, emotional dysregulation and post-traumatic stress disorder (PTSD) symptoms (avoidance, numbing and hyperarousal) between developmental trauma and hallucinations. There was also evidence of a mediating role of negative schemata, i.e. mental constructs of meanings, between developmental trauma and delusions as well as paranoia. Many studies to date have been of poor quality, and the field is limited by mostly cross-sectional research. Our findings suggest that there may be distinct psy-chological pathways from developmental trauma to psychotic phenomena in adulthood. Clinicians should carefully ask people with psychosis about their history of developmental trauma, and screen patients with such a history for dissociation, emotional dysregulation and PTSD symptoms. Well conducted research with prospective designs, including neurocognitive assessment, is required in order to fully understand the biopsychosocial mechanisms underlying the association between developmental trauma and psychosis.
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Affiliation(s)
- Michael A.P. Bloomfield
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK,Traumatic Stress Clinic, St. Pancras Hospital, Camden and Islington NHS Foundation TrustLondonUK,NIHR University College London Hospitals Biomedical Research CentreUniversity College HospitalLondonUK,National Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Tinya Chang
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK
| | - Maximillian J. Woodl
- Traumatic Stress Clinic, St. Pancras Hospital, Camden and Islington NHS Foundation TrustLondonUK
| | - Laura M. Lyons
- Traumatic Stress Clinic, St. Pancras Hospital, Camden and Islington NHS Foundation TrustLondonUK
| | - Zhen Cheng
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK
| | - Clarissa Bauer‐Staeb
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK,Department of PsychologyUniversity of BathBathUK
| | - Catherine Hobbs
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK,Department of PsychologyUniversity of BathBathUK
| | - Sophie Bracke
- Translational Psychiatry Research Group, Research Department of Mental Health Neuroscience, Division of PsychiatryUniversity College LondonLondonUK
| | - Helen Kennerley
- University of OxfordOxfordUK,Oxford Centre for Cognitive TherapyWarneford Hospital, Oxford Health NHS Foundation TrustOxfordUK
| | - Louise Isham
- Oxford Centre for Cognitive TherapyWarneford Hospital, Oxford Health NHS Foundation TrustOxfordUK,Department of PsychiatryUniversity of OxfordOxfordUK
| | - Chris Brewin
- Research Department of Clinical, Health and Educational PsychologyUniversity College LondonLondonUK
| | - Jo Billings
- Division of PsychiatryUniversity College LondonLondonUK
| | - Talya Greene
- Division of PsychiatryUniversity College LondonLondonUK,Community Mental Health DepartmentUniversity of HaifaHaifaIsrael
| | - Glyn Lewis
- Division of PsychiatryUniversity College LondonLondonUK
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48
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Hair cortisol concentrations in mental disorders: A systematic review. Physiol Behav 2021; 229:113244. [DOI: 10.1016/j.physbeh.2020.113244] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/26/2020] [Accepted: 11/06/2020] [Indexed: 12/11/2022]
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49
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El Mlili N, Ahabrach H, Cauli O. Hair Cortisol Concentration as a Biomarker of Sleep Quality and Related Disorders. Life (Basel) 2021; 11:life11020081. [PMID: 33499247 PMCID: PMC7911396 DOI: 10.3390/life11020081] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 12/11/2022] Open
Abstract
Cortisol is the end product of the hypothalamic-pituitary-adrenal (HPA) axis, and its production is increased mainly in stressful situations or in chronic disorders accompanied by stress enhancement. Altered cortisol concentrations have been reported in a number of neuropsychiatric diseases and sleep disorders. Cortisol concentrations have been measured using several methods, and in several matrixes, such as blood, saliva, and urine. However, lately, hair cortisol, for several reasons, has emerged as a promising biomarker of long-term retrospective HPA activation. Several experimental approaches for cortisol measurement with the corresponding concentration reference ranges and a summary of findings from scientific literature on this field are presented. There is evidence of a close relationship between HPA functional alteration and the development of neuropsychiatric disorders. Sleep disorders are the most common manifestation in several neuropsychiatric conditions, and have also been associated to cortisol alterations in both adults and children. Many studies indicate that hair cortisol constitutes a valuable tool for further contributing to existing data on salivary, plasma, or urinary cortisol concentrations in patients with sleep disorders.
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Affiliation(s)
- Nisrin El Mlili
- Higher Institute of Nursing Professions and Health Techniques (ISPITS), 93000 Tetouan, Morocco; (N.E.M.); (H.A.)
- Department of Biology and Health, Faculty of Sciences, University Abdelmalek Essâadi, 93000 Tetouan, Morocco
| | - Hanan Ahabrach
- Higher Institute of Nursing Professions and Health Techniques (ISPITS), 93000 Tetouan, Morocco; (N.E.M.); (H.A.)
- Department of Biology and Health, Faculty of Sciences, University Abdelmalek Essâadi, 93000 Tetouan, Morocco
| | - Omar Cauli
- Department of Nursing, University of Valencia, 46010 Valencia, Spain
- Frailty and Cognitive Impairment Group (FROG), University of Valencia, 46010 Valencia, Spain
- Chair of Healthy, Active and Participatory Aging, Valencia City Council, University of Valencia, 46010 Valencia, Spain
- Correspondence:
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Adolescent Neurodevelopment and Vulnerability to Psychosis. Biol Psychiatry 2021; 89:184-193. [PMID: 32896384 PMCID: PMC9397132 DOI: 10.1016/j.biopsych.2020.06.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 12/28/2022]
Abstract
Adolescence is characterized by significant changes in several domains, including brain structure and function, puberty, and social and environmental factors. Some of these changes serve to increase the likelihood of psychosis onset during this period, while others may buffer this risk. This review characterizes our current knowledge regarding the unique aspects of adolescence that may serve as risk factors for schizophrenia spectrum disorders. In addition, we provide potential future directions for research into adolescent-specific developmental mechanisms that impart vulnerability to psychosis and the possibility of interventions that capitalize on adolescents' unique characteristics. Specifically, we explore the ways in which gray and white matter develop throughout adolescence in typically developing youth as well as in those with psychosis spectrum disorders. We also discuss current views on the function that social support and demands, as well as role expectations, play in risk for psychosis. We further highlight the importance of considering biological factors such as puberty and hormonal changes as areas of unique vulnerability for adolescents. Finally, we discuss cannabis use as a factor that may have a unique impact during adolescent neurodevelopment, and subsequently potentially impact psychosis onset. Throughout, we include discussion of resilience factors that may provide unique opportunities for intervention during this dynamic life stage.
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