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Barbosa MR, Costa EFL, Coimbra DG, Pinto VTBC, Gitaí DLG, Duzzioni M, Crespo MT, Golombek DA, Chiesa JJ, Agostino PV, de Andrade TG. Transitional photoperiod induces a mania-like behavior in male mice. Eur J Neurosci 2024. [PMID: 39119736 DOI: 10.1111/ejn.16498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024]
Abstract
This study aimed to investigate the behavioral responses and circadian rhythms of mice to both rapid and gradual increases in photoperiod, mimicking the transition from winter to summer, which is associated with a heightened prevalence of hospitalizations for mania and suicidal behavior. Behavioral tests were performed in C57BL/6 male mice exposed to a transitional photoperiod, from short to long durations. To determine if circadian rhythms are affected, we measured spontaneous locomotor activity and body temperature. Mice exhibited heightened exploratory and risk-taking behaviors compared with equatorial and static long (16:8 h of light-dark cycle for several days) groups. These behaviors were prevented by lithium. Spontaneous locomotor activity and body temperature rhythms persisted and were effectively synchronized; however, the relative amplitude of activity and interdaily stability were diminished. Additionally, the animals displayed increased activity during the light phase. Photoperiodic transition modulates behavior and circadian rhythms, mirroring certain features observed in bipolar disorder patients. This study introduces an animal model for investigating mania-like behavior induced by photoperiodic changes, offering potential insights for suicide prevention strategies and the management of mood disorders.
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Affiliation(s)
- Mayara Rodrigues Barbosa
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Daniel Gomes Coimbra
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Daniel Leite Góes Gitaí
- Department of Cellular and Molecular Biology, Institute of Biological Sciences and Health, Federal University of Alagoas, Alagoas, Brazil
| | - Marcelo Duzzioni
- Laboratory of Pharmacology Innovation, Institute of Biological Sciences and Health, Federal University of Alagoas, Maceió, Brazil
| | - Manuel Tomás Crespo
- Department of Science and Technology, Universidad Nacional de Quilmes/CONICET, Buenos Aires, Argentina
| | - Diego Andrés Golombek
- Department of Science and Technology, Universidad Nacional de Quilmes/CONICET, Buenos Aires, Argentina
- Laboratorio Interdisciplinario del Tiempo (LITERA), Universidad de San Andrés, Victoria, Argentina
| | - Juan José Chiesa
- Department of Science and Technology, Universidad Nacional de Quilmes/CONICET, Buenos Aires, Argentina
| | | | - Tiago Gomes de Andrade
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Alagoas, Brazil
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Circadian Rhythms in Mood Disorders. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1344:153-168. [PMID: 34773231 DOI: 10.1007/978-3-030-81147-1_9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Altered behavioral rhythms are a fundamental diagnostic feature of mood disorders. Patients report worse subjective sleep and objective measures confirm this, implicating a role for circadian rhythm disruptions in mood disorder pathophysiology. Molecular clock gene mutations are associated with increased risk of mood disorder diagnosis and/or severity of symptoms, and mouse models of clock gene mutations have abnormal mood-related behaviors. The mechanism by which circadian rhythms contribute to mood disorders remains unknown, however, circadian rhythms regulate and are regulated by various biological systems that are abnormal in mood disorders and this interaction is theorized to be a key component of mood disorder pathophysiology. A growing body of evidence has begun defining how the interaction of circadian and neurotransmitter systems influences mood and behavior, including the role of current antidepressants and mood stabilizers. Additionally, the hypothalamus-pituitary-adrenal (HPA) axis interacts with both circadian and monoaminergic systems and may facilitate the contribution of environmental stressors to mood disorder pathophysiology. The central role of circadian rhythms in mood disorders has led to the development of chronotherapeutics, which are treatments designed specifically to target circadian rhythm regulators, such as sleep, light, and melatonin, to produce an antidepressant response.
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Monteiro C, Tavares E, Câmara A, Nobre J. Regulação molecular do ritmo circadiano e transtornos psiquiátricos: uma revisão sistemática. JORNAL BRASILEIRO DE PSIQUIATRIA 2020. [DOI: 10.1590/0047-2085000000258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RESUMO Objetivo O artigo possui como objetivo investigar os genes relógio que estão mais associados com os transtornos psiquiátricos, as funções e localizações desses genes, assim como investigar o principal transtorno, método e modelo considerados nas análises. O trabalho busca resumir os achados e discutir o impacto dessas pesquisas no conhecimento científico. Métodos Esta revisão utilizou-se de uma metodologia sistemática (Prospero; ID 152031) e seguiu as diretrizes PRISMA. A busca dos estudos foi realizada nas bases de dados PubMed/MEDLINE e Scientific Eletronic Library Online e foram utilizados os termos do Medical Subject Headings Terms . Foram selecionados estudos quantitativos com resultados conclusivos referentes à associação de transtornos psiquiátricos com a regulação molecular do ritmo circadiano. As informações úteis foram extraídas e utilizadas para a elaboração de gráficos e tabelas. Resultados Foram incluídos 24 artigos em nosso estudo. Observou-se que o transtorno bipolar consistiu no transtorno psiquiátrico mais abordado (40% dos estudos); a nacionalidade polonesa dos participantes também se destacou em 39% dos trabalhos. Adicionalmente, o gene PER foi o mais estudado (25%) e o córtex cerebral foi a principal região em que os genes relógio avaliados se expressam (34%). A PCR comum mostrou ser o método mais utilizado (38%) e o metabolismo da serotonina mostrou ser a principal função desempenhada pelos produtos gênicos (16%). Conclusões Em conjunto, os resultados sugerem que o transtorno bipolar consiste no distúrbio psiquiátrico mais prevalente entre as pesquisas relacionadas aos genes circadianos, expressos principalmente no córtex cerebral de humanos, em especial o gene PER .
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Affiliation(s)
| | | | - Alice Câmara
- Universidade Federal do Rio Grande do Norte, Brasil
| | - Jonas Nobre
- Universidade Federal do Rio Grande do Norte, Brasil
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Abstract
Symptoms of affective disorders encompass a range of changes to biological processes such as sleep and appetite. These processes are regulated over a 24-h cycle known as the circadian rhythm. Sleep is a particularly useful marker of this rhythm as it is readily measurable and functionally significant. Sleep disturbance is common in bipolar affective disorder and may act as a marker, and precipitant, of relapse. Circadian rhythms are modulated by environmental and social cues and have been shown to be influenced by treatment in BPAD. As such understanding of circadian rhythms may lead to a better understanding of the pathophysiology of BPAD and its treatment. This chapter will explore the neurobiology of the circadian clock and the putative role of circadian rhythm dysregulation in the pathophysiology and treatment of bipolar affective disorder (BPAD).
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Maximum Temperature and Solar Radiation as Predictors of Bipolar Patient Admission in an Emergency Psychiatric Ward. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16071140. [PMID: 30934957 PMCID: PMC6480941 DOI: 10.3390/ijerph16071140] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 12/15/2022]
Abstract
Environmental variables can regulate behavior in healthy subjects. Recently, some authors investigated the role of meteorological variables in bipolar patients with an impact on both the onset and course of bipolar disorder (BD). The aim of this study was to investigate the impact of meteorological variables and other indexes in bipolar hospitalized patients. We examined all patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Hospital, Orbassano (Turin, Italy) from September 2013 to August 2015, collecting several socio-demographic and clinical characteristics. Seven hundred and thirty patients were included. Compared to the day of admission of control individuals, patients with BD were admitted on a day that presented higher minimum, medium, and maximum temperature, higher maximum humidity, higher solar radiation, and higher hours of sunshine. After logistic regression analysis, admissions to the emergency psychiatric ward due to a primary diagnosis of BD were associated with maximum temperature and solar radiation. The current study provides a novel perspective on the question surrounding seasonal mood patterns in patients with BD. A greater awareness of all possible precipitating factors is needed to inform self-management and psycho-educational programs as well as to improve resilience regarding affective recurrences in the clinical practice.
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Aguglia A, Serafini G, Solano P, Giacomini G, Conigliaro C, Salvi V, Mencacci C, Romano M, Aguglia E, Amore M. The role of seasonality and photoperiod on the lethality of suicide attempts: A case-control study. J Affect Disord 2019; 246:895-901. [PMID: 30795496 DOI: 10.1016/j.jad.2018.12.094] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/19/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND The risk factors related to suicidal behaviors are complex and not yet fully known. Several studies underline how suicide results from the combination of psycho-social, biological, cultural, and environmental factors. The aim of this study was to investigate the potential role of seasonality and photoperiod on high-lethality suicide attempts (HLSA) compared with low-lethality suicide attempts (LLSA) in a sample of psychiatric inpatients. METHODS After attempting suicide, subjects were admitted in the emergency/psychiatric ward of the IRCCS Ospedale Policlinico San Martino from 1st August 2013 to 31st July 2018. Socio-demographic and clinical characteristics were collected. RESULTS The sample consisted of four hundred thirty-two individuals admitted for suicide attempt. One hundred thirty-three subjects (30.8%) of the sample committed a HLSA. The HLSA group peaked in the months with a higher sunlight exposure (June and July). Bivariate correlation analyses between seasonality/photoperiod in the whole sample and HLSA were positively associated with summer and highest solar intensity period. LIMITATIONS Data were limited to a single hospital, patients' seasonal environment, meteorological variables and psychological factors. In addition, the presence of acute life-events fostering the suicidal crisis has not been investigated. CONCLUSIONS The current study provides a novel perspective on the questions surrounding the impact of seasonality and daylight exposure on lethality of suicide attempts. further studies are needed to provide deeper understandings on the delicate molecular network that links suicide behaviors, seasonality and daylight in order to develop more effective prevention and treatment strategies in the future.
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Affiliation(s)
- Andrea Aguglia
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Gianluca Serafini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Paola Solano
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Gabriele Giacomini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Claudia Conigliaro
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Virginio Salvi
- Department of Neuroscience, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Claudio Mencacci
- Department of Neuroscience, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Miroslav Romano
- Department of Experimental and Clinical Medicine, Psychiatric Clinic University Hospital "Gaspare Rodolico", University of Catania, Catania, Italy
| | - Eugenio Aguglia
- Department of Experimental and Clinical Medicine, Psychiatric Clinic University Hospital "Gaspare Rodolico", University of Catania, Catania, Italy
| | - Mario Amore
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics Maternal and Child Health, University of Genoa, Section of Psychiatry, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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