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Veronesi G, Ferrario MM, Giusti EM, Borchini R, Cimmino L, Ghelli M, Banfi A, Luoni A, Persechino B, Di Tecco C, Ronchetti M, Gianfagna F, De Matteis S, Castelnuovo G, Iacoviello L. Systematic Violence Monitoring to Reduce Underreporting and to Better Inform Workplace Violence Prevention Among Health Care Workers: Before-and-After Prospective Study. JMIR Public Health Surveill 2023; 9:e47377. [PMID: 37955961 PMCID: PMC10682923 DOI: 10.2196/47377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/14/2023] [Accepted: 09/26/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Monitoring workplace violence (WPV) against health care workers (HCWs) through incident reporting is crucial to drive prevention, but the actual implementation is spotty and experiences underreporting. OBJECTIVE This study aims to introduce a systematic WPV surveillance in 2 public referral hospitals in Italy and assess underreporting, WPV annual rates, and attributes "before" (2016-2020) and "after" its implementation (November 2021 to 2022). METHODS During 2016-2020, incident reporting was based on procedures and data collection forms that were neither standardized between hospitals nor specific for aggressions. We planned and implemented a standardized WPV surveillance based on (1) an incident report form for immediate and systematic event notification, adopting international standards for violence definitions; (2) second-level root cause analysis with a dedicated psychologist, assessing violence determinants and impacts and offering psychological counseling; (3) a web-based platform for centralized data collection; and (4) periodic training for workforce coordinators and newly hired workers. We used data from incident reports to estimate underreporting, defined as an observed-to-expected (from literature and the "before" period) WPV ratio less than 1, and the 12-month WPV rates (per 100 HCWs) in the "before" and "after" periods. During the latter period, we separately estimated WPV rates for first and recurrent events. RESULTS In the "before" period, the yearly observed-to-expected ratios were consistently below 1 and as low as 0.27, suggesting substantial violence underreporting of up to 73%. WPV annual rates declined in 1 hospital (from 1.92 in 2016 to 0.57 in 2020) and rose in the other (from 0.52 to 1.0), with the divergence being attributable to trends in underreporting. Available data were poorly informative to identify at-risk HCW subgroups. In the "after" period, the observed-to-expected ratio rose to 1.14 compared to literature and 1.91 compared to the "before" period, consistently in both hospitals. The 12-month WPV rate was 2.08 (95% CI 1.79-2.42; 1.52 and 2.35 in the 2 hospitals); one-fifth (0.41/2.08, 19.7%) was due to recurrences. Among HCWs, the youngest group (3.79; P<.001), nurses (3.19; P<.001), and male HCWs (2.62; P=.008) reported the highest rates. Emergency departments and psychiatric wards were the 2 areas at increased risk. Physical assaults were more likely in male than female HWCs (45/67, 67.2% vs 62/130, 47.7%; P=.01), but the latter experienced more mental health consequences (46/130, 35.4% vs 13/67, 19.4%; P=.02). Overall, 40.8% (53/130) of female HWCs recognized sociocultural (eg, linguistic or cultural) barriers as contributing factors for the aggression, and 30.8% (40/130) of WPV against female HCWs involved visitors as perpetrators. CONCLUSIONS A systematic WPV surveillance reduced underreporting. The identification of high-risk workers and characterization of violence patterns and attributes can better inform priorities and contents of preventive policies. Our evaluation provides useful information for the large-scale implementation of standardized WPV-monitoring programs.
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Affiliation(s)
- Giovanni Veronesi
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Marco Mario Ferrario
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Emanuele Maria Giusti
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Rossana Borchini
- Occupational and Preventive Medicine, Azienda Socio-Sanitaria Territoriale Lariana, Como, Italy
| | - Lisa Cimmino
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Monica Ghelli
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers Compensations Authority (INAIL), Roma, Italy
| | - Alberto Banfi
- Struttura Complessa Qualità, Risk Management e Accreditamento, Azienda Socio-Sanitaria Territoriale dei Sette Laghi, Varese, Italy
| | - Alessandro Luoni
- School of Specialization in Occupational Medicine, University of Insubria, Varese, Italy
| | - Benedetta Persechino
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers Compensations Authority (INAIL), Roma, Italy
| | - Cristina Di Tecco
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers Compensations Authority (INAIL), Roma, Italy
| | - Matteo Ronchetti
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Italian Workers Compensations Authority (INAIL), Roma, Italy
| | - Francesco Gianfagna
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
- Mediterranea Cardiocentro, Napoli, Italy
| | - Sara De Matteis
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Gianluca Castelnuovo
- Psychology Research Laboratory, Istituto Auxologico Italiano, Istituto di Ricovero e Cura a Carattere Scientifico, Milano, Italy
- Department of Psychology, Catholic University of the Sacred Heart, Milano, Italy
| | - Licia Iacoviello
- Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Varese, Italy
- Department of Epidemiology and Prevention, Istituto di Ricovero e Cura a Carattere Scientifico Neuromed, Pozzilli, Italy
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Gass P, Inta D, Luoni A, Riva M. Differential Effects of MGluR5 Receptor Blockade on Behavior, Schizophrenia-relevant Gene Expression and Neuronal Activation Patterns from Development to Aging Mice. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.2048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionThe glutamate system is implicated both in mood disorders and schizophrenia. Mice lacking metabotropic mGlu5 receptors (mGluR5 KO) display schizophrenia-like abnormalities. Additionally, mGluR5 antagonists represent promising alternative anxiolytics/antidepressants. However, the underlying age-specific molecular/cellular mechanisms are only partially understood.ObjectivesWe aimed at identifying molecular alterations associated with a genetically induced mGluR5 deletion, which results in a schizophrenia-like phenotype. Additionally, we investigated age-specific effects of mGluR5 antagonists on emotional behaviour and c-fos activation.MethodsFor analysis of mRNA and protein levels we performed Real-time RT-PCR and Western blot investigations of brains from mGluR5 KO and wild-type mice. Additionally we used classical behavioral tests for determining anxiety- and depression-like changes triggered by the mGluR5 antagonist 2-Methyl-6-(phenylethynyl)pyridine (MPEP). Finally, we used profiling of c-Fos expression, as marker of neuronal activity, induced by MPEP from postnatal day 16 (P16) to adulthood (P90).ResultsWe found reduced expression levels of reelin, GAD65, GAD67, parvalbumin, as well as NMDA and AMPA receptor subunits in mGluR5 KO mice, especially in the prefrontal cortex (PFC). We measured age-specific alterations in emotional behaviour of mGluR5 KO mice, with marked increase of anxiety during aging. There was a remarkably conserved activation of the paraventricular nucleus of the hypothalamus, implicated in stress regulation, by MPEP at all investigated ages, whereas the extended amygdala was specifically activated in adulthood only.ConclusionsOur animal data provide new insights into the potential role of mGluR5 in neurochemical and behavioural changes associated with schizophrenia and mood disorders during the lifespan.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Luoni A, Richetto J, Longo L, Riva MA. Chronic lurasidone treatment normalizes GABAergic marker alterations in the dorsal hippocampus of mice exposed to prenatal immune activation. Eur Neuropsychopharmacol 2017; 27:170-179. [PMID: 27939135 DOI: 10.1016/j.euroneuro.2016.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/21/2016] [Accepted: 12/01/2016] [Indexed: 12/31/2022]
Abstract
Prenatal maternal infection represents a risk factor for the development of psychopathologic conditions later in life. Clinical evidence is also supported by animal models in which the vulnerability to develop a schizophrenic-like phenotype likely originates from inflammatory processes as early as in the womb. Prenatal immune challenge, for example, induces a variety of long-term behavioral alterations in mice, such as deficits in recognition and spatial working memory, perseverative behaviors and social impairments, which are relevant to different symptom clusters of schizophrenia. Here, we investigated the modulation of GABAergic markers in the dorsal and ventral hippocampus of adult mice exposed to late prenatal immune challenge with the viral mimetic Poly(I:C) (polyriboinosinic-polyribocytidilic-acid) at gestational day 17, and we evaluated the ability of chronic treatment with the multi-receptor antipsychotic lurasidone to modulate the alterations produced by maternal infection. Poly(I:C) mice show a significant reduction of key GABAergic markers, such as GAD67 and parvalbumin, specifically in the dorsal hippocampus, which were normalized by chronic lurasidone administration. Moreover, chronic drug administration increases the expression of the pool of brain derived neurotrophic factor (BDNF) transcripts with the long 3'-UTR as well as the levels of mature BDNF protein in the synaptosomal compartment, selectively in dorsal hippocampus. All in all, our findings demonstrate that lurasidone is effective in ameliorating molecular abnormalities observed in Poly(I:C) mice, providing further support to the neuroplastic properties of this multi-receptor antipsychotic drug.
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Affiliation(s)
- A Luoni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133 Milan, Italy
| | - J Richetto
- Institute of Pharmacology and Toxicology, University of Zurich-Vetsuisse, Zurich, Switzerland
| | - L Longo
- Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133 Milan, Italy
| | - M A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133 Milan, Italy.
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Luoni A, Berry A, Raggi C, Bellisario V, Cirulli F, Riva MA. Sex-Specific Effects of Prenatal Stress on Bdnf Expression in Response to an Acute Challenge in Rats: a Role for Gadd45β. Mol Neurobiol 2016; 53:7037-7047. [PMID: 26676568 DOI: 10.1007/s12035-015-9569-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 11/29/2015] [Indexed: 12/24/2022]
Abstract
Exposure to early adversities represents a major risk factor for psychiatric disorders. We have previously shown that exposure to prenatal stress (PNS) in rats alters the developmental expression of brain-derived neurotrophic factor (Bdnf) with a specific temporal profile. However, exposure to early-life stress is known to alter the ability to cope with challenging events later in life, which may contribute to the enhanced vulnerability to stress-related disorders. Since Bdnf is also an important player for activity-dependent plasticity, we investigated whether the exposure to PNS in rats could alter Bdnf responsiveness to an acute challenge at adulthood. We found that exposure to PNS produces significant changes in Bdnf responsiveness with brain region- and gender-specific selectivity. Indeed, exposure to an acute stress upregulates Bdnf expression in the prefrontal cortex, but not in the hippocampus, of control animals. Moreover, such modulatory activity is selectively impaired in PNS female rats, an effect that was associated with changes in the modulation of the DNA demethylase Gadd45β. Our results suggest that exposure to PNS may reprogram gene transcription through epigenetic mechanisms reducing the ability to cope under adverse conditions, a trait that is disrupted in psychiatric diseases.
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Affiliation(s)
- A Luoni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133, Milan, Italy
| | - A Berry
- Section of Behavioural Neurosciences, Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - C Raggi
- Section of Behavioural Neurosciences, Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - V Bellisario
- Section of Behavioural Neurosciences, Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - F Cirulli
- Section of Behavioural Neurosciences, Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - M A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133, Milan, Italy.
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Schmidt M, Brandwein C, Luoni A, Sandrini P, Calzoni T, Deuschle M, Cirulli F, Riva M, Gass P. Morc1 knockout evokes a depression-like phenotype in mice. Behav Brain Res 2016; 296:7-14. [DOI: 10.1016/j.bbr.2015.08.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 08/01/2015] [Accepted: 08/07/2015] [Indexed: 11/26/2022]
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Cirulli F, Berry A, Panetta P, Bellisario V, Capoccia S, Luoni A, Riva M. Prenatal Stress as a Risk Factor for Major Depression: an Investigation On Therapeutic Intervention with Antipsychotics and the Role of Social Stimuli During Periadolescence. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30149-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Nieratschker V, Massart R, Gilles M, Luoni A, Suderman MJ, Krumm B, Meier S, Witt SH, Nöthen MM, Suomi SJ, Peus V, Scharnholz B, Dukal H, Hohmeyer C, Wolf IAC, Cirulli F, Gass P, Sütterlin MW, Filsinger B, Laucht M, Riva MA, Rietschel M, Deuschle M, Szyf M. MORC1 exhibits cross-species differential methylation in association with early life stress as well as genome-wide association with MDD. Transl Psychiatry 2014; 4:e429. [PMID: 25158004 PMCID: PMC4150246 DOI: 10.1038/tp.2014.75] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 06/12/2014] [Accepted: 07/22/2014] [Indexed: 01/11/2023] Open
Abstract
Early life stress (ELS) is associated with increased vulnerability for diseases in later life, including psychiatric disorders. Animal models and human studies suggest that this effect is mediated by epigenetic mechanisms. In humans, epigenetic studies to investigate the influence of ELS on psychiatric phenotypes are limited by the inaccessibility of living brain tissue. Due to the tissue-specific nature of epigenetic signatures, it is impossible to determine whether ELS induced epigenetic changes in accessible peripheral cells, for example, blood lymphocytes, reflect epigenetic changes in the brain. To overcome these limitations, we applied a cross-species approach involving: (i) the analysis of CD34+ cells from human cord blood; (ii) the examination of blood-derived CD3+ T cells of newborn and adolescent nonhuman primates (Macaca mulatta); and (iii) the investigation of the prefrontal cortex of adult rats. Several regions in MORC1 (MORC family CW-type zinc finger 1; previously known as: microrchidia (mouse) homolog) were differentially methylated in response to ELS in CD34+ cells and CD3+ T cells derived from the blood of human and monkey neonates, as well as in CD3+ T cells derived from the blood of adolescent monkeys and in the prefrontal cortex of adult rats. MORC1 is thus the first identified epigenetic marker of ELS to be present in blood cell progenitors at birth and in the brain in adulthood. Interestingly, a gene-set-based analysis of data from a genome-wide association study of major depressive disorder (MDD) revealed an association of MORC1 with MDD.
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Affiliation(s)
- V Nieratschker
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany,Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany,Department of Psychiatry and Psychotherapy, University of Tuebingen, Calwerstrasse 14, 72076 Tuebingen, Germany E-mail:
| | - R Massart
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada
| | - M Gilles
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - A Luoni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - M J Suderman
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada,Sackler Program for Epigenetics and Developmental Psychobiology, McGill University, Montreal, QC, Canada,McGill Centre for Bioinformatics, McGill University, Montreal, QC, Canada
| | - B Krumm
- Department of Biostatistics, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - S Meier
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - S H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - M M Nöthen
- Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany,Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - S J Suomi
- Laboratory of Comparative Ethology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - V Peus
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - B Scharnholz
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - H Dukal
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - C Hohmeyer
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - I A-C Wolf
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - F Cirulli
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - P Gass
- Department of Psychiatry and Psychotherapy, Research Group Animal Models in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - M W Sütterlin
- Department of Gynecology and Obstetrics, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - B Filsinger
- Department of Obstetrics, St. Marien- und St. Annastiftskrankenhaus, Ludwigshafen am Rhein, Germany
| | - M Laucht
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - M A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - M Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - M Deuschle
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany,Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, J 5, 68159 Mannheim, Germany. E-mail:
| | - M Szyf
- Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada,Sackler Program for Epigenetics and Developmental Psychobiology, McGill University, Montreal, QC, Canada
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Luoni A, Berry A, Calabrese F, Capoccia S, Bellisario V, Gass P, Cirulli F, Riva MA. Delayed BDNF alterations in the prefrontal cortex of rats exposed to prenatal stress: preventive effect of lurasidone treatment during adolescence. Eur Neuropsychopharmacol 2014; 24:986-95. [PMID: 24440552 DOI: 10.1016/j.euroneuro.2013.12.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 12/04/2013] [Accepted: 12/11/2013] [Indexed: 01/18/2023]
Abstract
Psychiatric diseases may often represent the consequence of exposure to adverse events early in life. Accordingly, exposure to stress during gestation in rats has a strong impact on development and can cause long-term abnormalities in adult behavior. Considering that neuronal plasticity has emerged as a major vulnerability element in psychiatric disorders, we investigated the postnatal developmental profile of Brain-Derived Neurotrophic Factor expression (BDNF), an important mediator for long-term functional deterioration associated to mental illness, in male and female rats following exposure to prenatal stress (PNS). Since we found that the majority of alterations became fully manifest at early adulthood, we tried to prevent these abnormalities with an early pharmacological intervention. To address this point, we treated rats during adolescence with the multi-receptor antipsychotic lurasidone, which was proven to be effective in animal models of schizophrenia. Interestingly, we show that lurasidone treatment was able to prevent the reduction of BDNF expression in adult rats that were exposed to PNS. Collectively, our results provide further support to the notion that exposure to early life stress has a negative impact on neuronal plasticity and that pharmacological intervention during critical time windows may prove effective in preventing neuroplastic dysfunction, leading to long-term beneficial effects on brain function.
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Affiliation(s)
- A Luoni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, I-20133 Milan, Italy
| | - A Berry
- Section of Behavioural Neuroscience, Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - F Calabrese
- Department of Pharmacological and Biomolecular Sciences, University of Milan, I-20133 Milan, Italy
| | - S Capoccia
- IRCCS "Centro San Giovanni di Dio" Fatebenefratelli, I-25134 Brescia, Italy
| | - V Bellisario
- Section of Behavioural Neuroscience, Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - P Gass
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health Mannheim, Medical Faculty Mannheim/Heidelberg University, D-68159 Mannheim, Germany
| | - F Cirulli
- Section of Behavioural Neuroscience, Department of Cell Biology and Neuroscience, Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - M A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, I-20133 Milan, Italy.
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Inta D, Vogt MA, Luoni A, Filipović D, Lima-Ojeda JM, Pfeiffer N, Gasparini F, Riva MA, Gass P. Significant increase in anxiety during aging in mGlu5 receptor knockout mice. Behav Brain Res 2012; 241:27-31. [PMID: 23228523 DOI: 10.1016/j.bbr.2012.11.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 11/25/2012] [Accepted: 11/29/2012] [Indexed: 10/27/2022]
Abstract
Glutamatergic mechanisms regulate neuronal circuits implicated in mood and anxiety. Emotional disorders as anxiety and depression are particularly difficult to treat during aging and mechanisms underlying emotional disturbances in the brain of the elderly are poorly understood. This may result from the small number of studies investigating these disorders in aged animals. Among glutamate receptors, metabotropic mGlu5 receptors are thought to play an important role, since their pharmacological blockade induces strong anxiolytic effects. However, the implication of mGlu5 in regulating anxiety is not yet completely understood. Here we analyzed both young adult and aged mice lacking mGlu5 receptors, to clarify, if genetic deletion of the receptor induces similar to pharmacological blockade anxiolytic effects. Unexpectedly, mGlu5 receptor knockout (KO) mice showed increased anxiety accentuating with aging. In contrast, young adult mice displayed an anti-depressive-like phenotype that was no longer detectable in aged animals. Our data support important distinct roles of mGlu5 receptors in modulating anxiety and depression during aging.
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Affiliation(s)
- D Inta
- RG Animal Models in Psychiatry, Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg, Germany.
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Dall'Aglio M, Bellavia G, Allegretti C, Luoni A, Venturelli G. Vigilance system for medical devices: the experience of an Italian hospital. Eur J Hosp Pharm 2012. [DOI: 10.1136/ejhpharm-2012-000074.308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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