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Lambert SD, Grover S, Laizner AM, McCusker J, Belzile E, Moodie EEM, Kayser JW, Lowensteyn I, Vallis M, Walker M, Da Costa D, Pilote L, Ibberson C, Sabetti J, de Raad M. Adaptive web-based stress management programs among adults with a cardiovascular disease: A pilot Sequential Multiple Assignment Randomized Trial (SMART). PATIENT EDUCATION AND COUNSELING 2022; 105:1587-1597. [PMID: 34753612 DOI: 10.1016/j.pec.2021.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/13/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To assess the feasibility and acceptability of using a Sequential Multiple Assignment Randomized Trial (SMART) to optimize the delivery of a web-based, stress management intervention for patients with a cardiovascular disease (CVD). METHODS 59 patients with a CVD and moderate stress were randomized to a self-directed web-based stress management program (n = 30) or the same intervention plus lay telephone coaching (n = 29). After 6 weeks, non-responders were re-randomized to continue with their initial intervention or switched to motivational interviewing (MI). Feasibility, acceptability, and clinical significance were assessed. RESULTS SMART procedures were feasible. Attrition rates were almost twice as high in the web-only group than the lay coach group. This might be because of the low satisfaction (47%) in the web-only group. On average, 1.7/5 modules were completed. Effect sizes for stress and quality of life generally exceeded 0.2 (clinical benchmark), except for the group that initially received lay coaching and then switched to MI. CONCLUSIONS Results suggest that a larger trial would be feasible. Issues pertaining to attrition and satisfaction for non-responders need to be addressed. PRACTICE IMPLICATIONS Findings contribute to the evidence on how best to develop and deliver e-Health interventions to maximize their efficacy while remaining cost-effective.
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Affiliation(s)
- Sylvie D Lambert
- Ingram School of Nursing, McGill University, 80 Sherbrooke St W, Suite 1800, Montreal, Quebec, Canada H3A 2M7; St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5.
| | - Steven Grover
- Department of Medicine, McGill University, 845 Rue Sherbrooke St W, Montreal, Quebec, Canada H3A 0G4
| | - Andrea Maria Laizner
- Ingram School of Nursing, McGill University, 80 Sherbrooke St W, Suite 1800, Montreal, Quebec, Canada H3A 2M7; McGill University Health Centre, 1001 Decarie Blvd, Montreal, Quebec, Canada H4A 3J1; Research Institute of the McGill University Health Centre, 2155 Guy St, Suite 500, Montreal, Quebec, Canada H3H 2R9
| | - Jane McCusker
- St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5; Department of Epidemiology, Biostatistics and Occupational Health, McGill University, 1020 Pine Ave, Montreal, Quebec, Canada H3A 1A2
| | - Eric Belzile
- St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5; Montreal West Island Integrated University Health and Social Services Centre (CIUSSS-ODIM), 3830 Lacombe Ave., Montreal, Quebec, Canada H3T 1M5
| | - Erica E M Moodie
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, 1020 Pine Ave, Montreal, Quebec, Canada H3A 1A2
| | - John William Kayser
- Montreal West Island Integrated University Health and Social Services Centre (CIUSSS-ODIM), 3830 Lacombe Ave., Montreal, Quebec, Canada H3T 1M5
| | - Ilka Lowensteyn
- Clinimetrica, 430 Saint-Pierre St, Suite 200, Montreal, Quebec, Canada H2Y 2M5; Research Institute of the McGill University Health Centre, 2155 Guy St, Suite 500, Montreal, Quebec, Canada H3H 2R9
| | - Michael Vallis
- Department of Family Medicine, Dalhousie University, 1465 Brenton St, Suite 402, Halifax, Nova Scotia, Canada B3J 3T4
| | - Mathieu Walker
- Division of Cardiology, St Mary's Hospital Centre, 3830 Lacombe Ave., Montreal, Quebec, Canada H3T 1M5
| | - Deborah Da Costa
- Center for Outcomes Research and Evaluation (CORE), Research Institute of the McGill University Health Centre, 2155 Guy St, Suite 500, Montreal, Quebec, Canada H3H 2R9; Department of Medicine, McGill University, 845 Rue Sherbrooke St W, Montreal, Quebec, Canada H3A 0G4
| | - Louise Pilote
- Center for Outcomes Research and Evaluation (CORE), Research Institute of the McGill University Health Centre, 2155 Guy St, Suite 500, Montreal, Quebec, Canada H3H 2R9; Department of Medicine, McGill University, 845 Rue Sherbrooke St W, Montreal, Quebec, Canada H3A 0G4
| | - Cindy Ibberson
- St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5
| | - Judith Sabetti
- St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5
| | - Manon de Raad
- St. Mary's Research Centre, 3830 Lacombe Ave., Hayes Pavilion, Suite 4720, Montreal, Quebec, Canada H3T 1M5; Montreal West Island Integrated University Health and Social Services Centre (CIUSSS-ODIM), 3830 Lacombe Ave., Montreal, Quebec, Canada H3T 1M5
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Kamimura Y, Kuwagaki E, Hamano S, Kobayashi M, Yamada Y, Takahata Y, Yoshimoto W, Morimoto H, Yasukawa T, Uozumi Y, Nagasawa K. Reproducible induction of depressive-like behavior in C57BL/6J mice exposed to chronic social defeat stress with a modified sensory contact protocol. Life Sci 2021; 282:119821. [PMID: 34271059 DOI: 10.1016/j.lfs.2021.119821] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/27/2021] [Accepted: 07/05/2021] [Indexed: 12/31/2022]
Abstract
AIMS C57BL/6J mice are well-known to exhibit resilience to chronic social defeat stress (CSDS) for induction of depressive-like behavior. Establishment of protocols for reproducible induction of depressive-like behavior in C57BL/6J mice would be useful to elucidate the underlying molecular mechanisms using target gene-knock-in and -out mice whose background is generally C57BL/6J. Here, we developed a modified CSDS protocol for reproducible induction of depressive-like behavior in C57BL/6J mice, and compared the profile of their gut microbiota with that with the standard CSDS protocol. MAIN METHODS To prevent acclimation of defeated C57BL/6J mice to aggressive ICR mice, the sensory contact following a daily 10 min-defeat episode was performed by housing an individual defeated mouse in a cage set next to a cage for the aggressor one. KEY FINDINGS The number of attacks by ICR mice on C57BL/6J ones was significantly increased with the modified CSDS protocol, and the susceptible mice exhibited greater hippocampal inflammation and an increased immobility time in the forced swim test, compared in the case of the standard CSDS protocol, and the reproducibility was confirmed in another set of experiments. Both the standard and modified CSDS protocols changed the diversity and relative composition of gut microbiota in the susceptible mice, but there was no apparent difference in them between the standard and modified CSDS-susceptible mice. SIGNIFICANCE We established a CSDS protocol for reproducible induction of depressive-like behavior in C57BL/6J mice, and the features of the gut microbiota were similar in the susceptible mice with and without the depressive-like behavior.
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Affiliation(s)
- Yusuke Kamimura
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Erina Kuwagaki
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Sakika Hamano
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Mami Kobayashi
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yukie Yamada
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Yuka Takahata
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Waka Yoshimoto
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Hirotoshi Morimoto
- Technical Development Division, Ako Kasei, Co., Ltd., 329 Sakoshi, Ako 678-0193, Japan
| | - Takeshi Yasukawa
- Technical Development Division, Ako Kasei, Co., Ltd., 329 Sakoshi, Ako 678-0193, Japan
| | - Yoshinobu Uozumi
- Technical Development Division, Ako Kasei, Co., Ltd., 329 Sakoshi, Ako 678-0193, Japan
| | - Kazuki Nagasawa
- Department of Environmental Biochemistry, Division of Biological Sciences, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
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Abstract
OBJECTIVE Anxiety and depression are risk factors for obstructive coronary artery disease (CAD), but their effects on coronary artery spasm (CAS) remain unestablished. METHODS Patient records in this population-based study were retrospectively collected from the Taiwan National Health Insurance Research Database. Using propensity score matching, we used 1:1:1 ratio stratification into a control group of 10,325 individuals without CAS or CAD, a CAS group comprising 10,473 patients, and a CAD group comprising 10,473 patients during 2000-2012. RESULTS The prevalence of CAS and CAD was 0.067% and 8.7%, respectively, in the general population. The prevalence of anxiety and depression diagnoses was significantly higher in patients with new-onset CAS than in those with new-onset CAD and controls without CAS/CAD, even after propensity score matching. Compared with CAD, anxiety and depression diagnoses conferred a higher risk of developing CAS (odds ratio [OR] = 2.29, 95% confidence interval [CI], 2.14-2.45, p < .001, and OR = 1.34, 95% CI, 1.08-1.66, p = .007, respectively). The association was even stronger when comparing CAS with the control group without CAD or CAS (OR = 5.20, 95% CI, 4.72-5.74, p < .001, and OR = 1.98, 95% CI, 1.50-2.62, p < .001, respectively). The increased risk of new-onset CAS as related to previous anxiety and depression diagnoses was comparable between males and females. CONCLUSIONS Compared with CAD or the general population, anxiety and depression diagnoses confer a higher risk of developing CAS. No sex differences are found for the association of anxiety and depression with CAS.
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4
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Impaired fear memory extinction during adolescence is accompanied by the depressive-like behaviors. Neurosci Lett 2019; 699:8-15. [DOI: 10.1016/j.neulet.2019.01.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/03/2019] [Accepted: 01/19/2019] [Indexed: 12/30/2022]
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Lähdepuro A, Savolainen K, Lahti-Pulkkinen M, Eriksson JG, Lahti J, Tuovinen S, Kajantie E, Pesonen AK, Heinonen K, Räikkönen K. The Impact of Early Life Stress on Anxiety Symptoms in Late Adulthood. Sci Rep 2019; 9:4395. [PMID: 30867476 PMCID: PMC6416302 DOI: 10.1038/s41598-019-40698-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 02/21/2019] [Indexed: 11/30/2022] Open
Abstract
Early life stress (ELS) may increase the risk of anxiety throughout the life course. Whether this effect extends to late adulthood is poorly known. In our study comprising 1872 participants from the Helsinki Birth Cohort Study born in 1934–1944, we investigated the association of various forms of ELS and their accumulation with self-reported anxiety symptoms at the age of 65–77 years. Data on childhood socioeconomic status and separation from parents were based on national registers for all participants. Information on self-reported emotional and physical trauma, parental divorce, and death of a family member in childhood was obtained from 1277 participants. We found that experiencing emotional trauma, physical trauma, and low socioeconomic status in childhood were associated with increased anxiety symptoms in late adulthood [B = 0.44 (95% CI = 0.31–0.58); B = 0.33 (95% CI = 0.20–0.46); B = 0.10 (95% CI = 0.01–0.19), respectively]. These associations remained significant even after controlling for other forms of ELS. Accumulation of early life stress also increased the levels of late-adulthood anxiety symptoms and the risk of anxiety regarded as clinically significant. Screening for potentially stressful childhood experiences in elderly populations may help identifying individuals with increased anxiety symptoms and planning preventive and therapeutic interventions for those exposed to ELS.
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Affiliation(s)
- Anna Lähdepuro
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
| | - Katri Savolainen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Marius Lahti-Pulkkinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom.,Chronic Disease Prevention Unit, Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
| | - Johan G Eriksson
- Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Chronic Disease Prevention Unit, Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Jari Lahti
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Soile Tuovinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Eero Kajantie
- Chronic Disease Prevention Unit, Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland.,Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.,PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Anu-Katriina Pesonen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Kati Heinonen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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6
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Harro J. Animal models of depression: pros and cons. Cell Tissue Res 2018; 377:5-20. [PMID: 30560458 DOI: 10.1007/s00441-018-2973-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/23/2018] [Indexed: 12/11/2022]
Abstract
Animal models of depression are certainly needed but the question in the title has been raised owing to the controversies in the interpretation of the readout in a number of tests, to the perceived lack of progress in the development of novel treatments and to the expressed doubts in whether animal models can offer anything to make a true breakthrough in understanding the neurobiology of depression and producing novel drugs against depression. Herewith, it is argued that if anything is wrong with animal models, including those for depression, it is not about the principle of modelling complex human disorder in animals but in the way the tests are selected, conducted and interpreted. Further progress in the study of depression and in developing new treatments, will be supported by animal models of depression if these were more critically targeted to drug screening vs. studies of underlying neurobiology, clearly stratified to vulnerability and pathogenetic models, focused on well-defined endophenotypes and validated for each setting while bearing the existing limits to validation in mind. Animal models of depression need not to rely merely on behavioural readouts but increasingly incorporate neurobiological measures as the understanding of depression as human brain disorder advances. Further developments would be fostered by cross-fertilizinga translational approach that is bidirectional, research on humans making more use of neurobiological findings in animals.
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Affiliation(s)
- Jaanus Harro
- Division of Neuropsychopharmacology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Ravila 14A Chemicum, 50411, Tartu, Estonia.
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Simard S, Coppola G, Rudyk CA, Hayley S, McQuaid RJ, Salmaso N. Profiling changes in cortical astroglial cells following chronic stress. Neuropsychopharmacology 2018; 43:1961-1971. [PMID: 29907879 PMCID: PMC6046043 DOI: 10.1038/s41386-018-0105-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 04/12/2018] [Accepted: 05/08/2018] [Indexed: 12/21/2022]
Abstract
Recent studies have suggested that cortical astroglia play an important role in depressive-like behaviors. Potential astroglial contributions have been proposed based on their known neuroplastic functions, such as glutamate recycling and synaptic plasticity. However, the specific mechanisms by which astroglial cells may contribute or protect against a depressive phenotype remain unknown. To delineate astroglial changes that accompany depressive-like behavior, we used astroglial-specific bacTRAP mice exposed to chronic variable stress (CVS) and profiled the astroglial translatome using translating ribosome affinity purification (TRAP) in conjunction with RNAseq. As expected, CVS significantly increased anxiety- and depressive-like behaviors and corticosterone levels and decreased GFAP expression in astroglia, although this did not reflect a change in the total number of astroglial cells. TRAPseq results showed that CVS decreased genes associated with astroglial plasticity: RhoGTPases, growth factor signaling, and transcription regulation, and increased genes associated with the formation of extracellular matrices such as perineuronal nets (PNNs). PNNs inhibit neuroplasticity and astroglia contribute to the formation, organization, and maintenance of PNNs. To validate our TRAPseq findings, we showed an increase in PNNs following CVS. Degradation of PNNs in the prefrontal cortex of mice exposed to CVS reversed the CVS-induced behavioral phenotype in the forced swim test. These data lend further support to the neuroplasticity hypothesis of depressive behaviors and, in particular, extend this hypothesis beyond neuronal plasticity to include an overall decrease in genes associated with cortical astroglial plasticity following CVS. Further studies will be needed to assess the antidepressant potential of directly targeting astroglial cell function in models of depression.
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Affiliation(s)
- Stephanie Simard
- 0000 0004 1936 893Xgrid.34428.39Department of Neuroscience, Carleton University, Ottawa, ON Canada
| | - Gianfilippo Coppola
- 0000000419368710grid.47100.32Child Study Center, Yale University, New Haven, CT USA
| | - Christopher A. Rudyk
- 0000 0004 1936 893Xgrid.34428.39Department of Neuroscience, Carleton University, Ottawa, ON Canada
| | - Shawn Hayley
- 0000 0004 1936 893Xgrid.34428.39Department of Neuroscience, Carleton University, Ottawa, ON Canada
| | - Robyn J. McQuaid
- 0000 0001 1503 7525grid.414622.7The Royal Ottawa Hospital, Ottawa, ON Canada
| | - Natalina Salmaso
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada. .,Child Study Center, Yale University, New Haven, CT, USA.
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8
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AnkG hemizygous mice present cognitive impairment and elevated anxiety/depressive-like traits associated with decreased expression of GABA receptors and postsynaptic density protein. Exp Brain Res 2017; 235:3375-3390. [PMID: 28821923 DOI: 10.1007/s00221-017-5056-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 08/03/2017] [Indexed: 10/19/2022]
Abstract
Recent genome-wide association studies (GWAS) of patient populations and genetic linkage assessments have demonstrated that the ankyrin-G (AnkG) gene is involved in neuropsychiatric disorders, including bipolar disorder, schizophrenia, and Alzheimer's disease, but it remains unclear how the genetic variants of AnkG contribute to neuropsychiatric disorders. Here, we generated AnkG hemizygous mice using the gene trapping approach. Homozygous AnkG was embryonically lethal. Western blotting and real-time polymerase chain reaction (qPCR) assessments of wild type (WT) and AnkG +/- mutant mice demonstrated a 50% reduction of ANKG levels, at the gene and protein levels, in AnkG hemizygous mice. In behavioral tests, AnkG hemizygous mice exhibited elevated anxiety- and depression-like traits, as well as cognitive impairment. Moreover, the expression levels of cognitive-related proteins (including metabotropic glutamate receptor subtype-1, brain-derived neurotrophic factor, postsynaptic density-95, GABA-B receptor, and GABA-A receptor alpha-1) were significantly decreased (P < 0.05), suggesting a possible role for AnkG in cognition. It is possible that the loss of AnkG in the brain disrupts the excitation/inhibition balance of neurotransmitters, hindering the synaptic plasticity of neurons, and consequently leading to abnormal behavioral symptoms. Therefore, AnkG possibly contributes to neuroprotection and normal brain function, and may constitute a new target for treating neuropsychiatric diseases, especially cognitive dysfunction.
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Murphy MO, Cohn DM, Loria AS. Developmental origins of cardiovascular disease: Impact of early life stress in humans and rodents. Neurosci Biobehav Rev 2017; 74:453-465. [PMID: 27450581 PMCID: PMC5250589 DOI: 10.1016/j.neubiorev.2016.07.018] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 07/06/2016] [Accepted: 07/19/2016] [Indexed: 02/07/2023]
Abstract
The Developmental Origins of Health and Disease (DOHaD) hypothesizes that environmental insults during childhood programs the individual to develop chronic disease in adulthood. Emerging epidemiological data strongly supports that early life stress (ELS) given by the exposure to adverse childhood experiences is regarded as an independent risk factor capable of predicting future risk of cardiovascular disease. Experimental animal models utilizing chronic behavioral stress during postnatal life, specifically maternal separation (MatSep) provides a suitable tool to elucidate molecular mechanisms by which ELS increases the risk to develop cardiovascular disease, including hypertension. The purpose of this review is to highlight current epidemiological studies linking ELS to the development of cardiovascular disease and to discuss the potential molecular mechanisms identified from animal studies. Overall, this review reveals the need for future investigations to further clarify the molecular mechanisms of ELS in order to develop more personalized therapeutics to mitigate the long-term consequences of chronic behavioral stress including cardiovascular and heart disease in adulthood.
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Affiliation(s)
- M O Murphy
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States
| | - D M Cohn
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States
| | - A S Loria
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, United States.
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10
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Developmental and behavioral consequences of early life maternal separation stress in a mouse model of fetal alcohol spectrum disorder. Behav Brain Res 2016; 308:94-103. [DOI: 10.1016/j.bbr.2016.04.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/12/2016] [Accepted: 04/16/2016] [Indexed: 02/07/2023]
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11
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Corticotropin-Releasing Hormone Receptor 2 Gene Variants in Irritable Bowel Syndrome. PLoS One 2016; 11:e0147817. [PMID: 26808377 PMCID: PMC4726564 DOI: 10.1371/journal.pone.0147817] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 01/08/2016] [Indexed: 12/15/2022] Open
Abstract
Background Corticotropin-releasing hormone (CRH) plays an important role in the pathophysiology of irritable bowel syndrome (IBS) and regulates the stress response through two CRH receptors (R1 and R2). Previously, we reported that a CRHR1 gene polymorphism (rs110402, rs242924, and rs7209436) and haplotypes were associated with IBS. However, the association between the CRHR2 gene and IBS was not investigated. We tested the hypothesis that genetic polymorphisms and haplotypes of CRHR2 are associated with IBS pathophysiology and negative emotion in IBS patients. Methods A total of 142 IBS patients and 142 healthy controls participated in this study. Seven single nucleotide polymorphisms (SNPs) of the CRHR2 gene (rs4722999, rs3779250, rs2240403, rs2267710, rs2190242, rs2284217, and rs2284220) were genotyped. Subjects' psychological states were evaluated using the Perceived-Stress Scale, the State-Trait Anxiety Inventory, and the Self-Rating Depression Scale. Results We found that rs4722999 and rs3779250, located in intronic region, were associated with IBS in terms of genotype frequency (rs4722999: P = 0.037; rs3779250: P = 0.017) and that the distribution of the major allele was significantly different between patients and controls. There was a significant group effect (controls vs. IBS), and a CRHR2 genotype effect was observed for three psychological scores, but the interaction was not significant. We found a haplotype of four SNPs (rs4722999, rs3779250, rs2240403, and rs2267710) and two SNPs (rs2284217 and rs2284220) in strong linkage disequilibrium (D′ > 0.90). We also found that haplotypes of the CRHR2 gene were significantly different between IBS patients and controls and that they were associated with negative emotion. Conclusion Our findings support the hypothesis that genetic polymorphisms and haplotypes of CRHR2 are related to IBS. In addition, we found associations between CRHR2 genotypes and haplotypes and negative emotion in IBS patients and controls. Further studies on IBS and the CRH system are warranted.
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Galtrey CM, Cock HR. Stress and Epilepsy. NEUROPSYCHIATRIC SYMPTOMS OF NEUROLOGICAL DISEASE 2016. [DOI: 10.1007/978-3-319-22159-5_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Rocha-Ferreira E, Phillips E, Francesch-Domenech E, Thei L, Peebles DM, Raivich G, Hristova M. The role of different strain backgrounds in bacterial endotoxin-mediated sensitization to neonatal hypoxic-ischemic brain damage. Neuroscience 2015; 311:292-307. [PMID: 26515746 PMCID: PMC4675086 DOI: 10.1016/j.neuroscience.2015.10.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 10/15/2015] [Accepted: 10/15/2015] [Indexed: 12/22/2022]
Abstract
Strain background plays a role in the response to hypoxia–ischemia. LPS sensitizes the immature brain to hypoxia–ischemia across several mouse strains. Vehicle injection may induce immune response and sensitization to hypoxia–ischemia.
Genetic background is known to influence the outcome in mouse models of human disease, and previous experimental studies have shown strain variability in the neonatal mouse model of hypoxia–ischemia. To further map out this variability, we compared five commonly used mouse strains: C57BL/6, 129SVJ, BALB/c, CD1 and FVB in a pure hypoxic–ischemic setup and following pre-sensitization with lipopolysaccharide (LPS). Postnatal day 7 pups were subjected to unilateral carotid artery occlusion followed by continuous 30 min 8% oxygen exposure at 36 °C. Twelve hours prior, a third of the pups received a single intraperitoneal LPS (0.6 μg/g) or a saline (vehicle) administration, respectively; a further third underwent hypoxia–ischemia alone without preceding injection. Both C57BL/6 and 129SVJ strains showed minimal response to 30 min hypoxia–ischemia alone, BALB/c demonstrated a moderate response, and both CD1 and FVB revealed the highest brain damage. LPS pre-sensitization led to substantial increase in overall brain infarction, microglial and astrocyte response and cell death in four of the five strains, with exception of BALB/c that only showed a significant effect with terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL). Saline administration prior to hypoxia–ischemia resulted in an increase in inflammatory-associated markers, particularly in the astroglial activation of C57BL/6 mice, and in combined microglial activation and neuronal cell loss in FVB mice. Finally, two of the four strongly affected strains – C57BL/6 and CD1 – revealed pronounced contralateral astrogliosis with a neuroanatomical localization similar to that observed on the occluded hemisphere. Overall, the current findings demonstrate strain differences in response to hypoxia–ischemia alone, to stress associated with vehicle injection, and to LPS-mediated pre-sensitization, which partially explains the high variability seen in the neonatal mouse models of hypoxia–ischemia. These results can be useful in future studies of fetal/neonatal response to inflammation and reduced oxygen–blood supply.
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Affiliation(s)
- E Rocha-Ferreira
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK.
| | - E Phillips
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
| | - E Francesch-Domenech
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
| | - L Thei
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
| | - D M Peebles
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
| | - G Raivich
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
| | - M Hristova
- Perinatal Brain Protection and Repair Group, EGA Institute for Women's Health, University College London, WC1E 6HX London, UK
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Katzman MA, Anand L, Furtado M, Chokka P. Food for thought: understanding the value, variety and usage of management algorithms for major depressive disorder. Psychiatry Res 2014; 220 Suppl 1:S3-14. [PMID: 25539872 DOI: 10.1016/s0165-1781(14)70002-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 10/11/2014] [Indexed: 12/28/2022]
Abstract
By 2020, depression is projected to be among the most important contributors to the global burden of disease. A plethora of data confirms that despite the availability of effective therapies, major depressive disorder continues to exact an enormous toll; this, in part, is due to difficulties reaching complete remission, as well as the specific associated costs of both the disorder's morbidity and mortality. The negative effects of depression include those on patients' occupational functioning, including absenteeism, presenteeism, and reduced opportunities for educational and work success. The use of management algorithms has been shown to improve treatment outcomes in major depressive disorder and may be less costly than "usual care" practices. Nevertheless, many patients with depression remain untreated. As well, even those who are treated often continue to experience suboptimal quality of life. As such, the treatment algorithms in this article may improve outcomes for patients suffering with depression. This paper introduces some of the principal reasons underlying these treatment gaps and examines measures or recommendations that might be changed or strengthened in future practice guidelines to bridge them.
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Affiliation(s)
- Martin A Katzman
- START Clinic for Mood and Anxiety Disorders, Toronto, ON, Canada; Northern Ontario School of Medicine, Thunder Bay, ON, Canada; Department of Psychology, Lakehead University, Thunder Bay, ON, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Adler Graduate Professional School, Toronto, ON, Canada.
| | - Leena Anand
- START Clinic for Mood and Anxiety Disorders, Toronto, ON, Canada
| | - Melissa Furtado
- START Clinic for Mood and Anxiety Disorders, Toronto, ON, Canada
| | - Pratap Chokka
- University of Alberta, Edmonton, AB, Canada; Chokka Center for Integrative Health, Edmonton, AB, Canada
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Aiello R, Crupi R, Leo A, Chimirri S, Rispoli V, Marra R, Citraro R, Cuzzocrea S, De Sarro G, Russo E. Long-term betamethasone 21-phosphate disodium treatment has distinct effects in CD1 and DBA/2 mice on animal behavior accompanied by opposite effects on neurogenesis. Behav Brain Res 2014; 278:155-66. [PMID: 25289489 DOI: 10.1016/j.bbr.2014.09.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 09/23/2014] [Accepted: 09/26/2014] [Indexed: 10/24/2022]
Abstract
One of the most peculiar characteristics of the stress response is the pronounced inter-individual and inter-strain variability both in behavioral and neurochemical outcomes. Several studies confirm that rodents belonging to the same or different strain and/or gender, when exposed to a stressor, may show behavioral and cognitive differences. We compared the effects of long-term betamethasone 21-phosphate disodium (BTM), a widely clinically used corticosteroid, on animal behavior and neurogenesis in CD1 and DBA/2 mice. BTM treatment, in CD1 mice, increased body weight gain and anxiety parameters while having pro-depressant effects. Furthermore, BTM significantly reduced neurogenesis in the dentate gyrus of the hippocampus. Finally, BTM treatment induced a significant impairment in memory and learning performance in the Morris water maze. At odds, BTM administration, in DBA/2 mice, caused a significant reduction in the body weight while not modifying anxiety parameters. In addition, both an increased synaptogenesis and neurogenesis were found. Similarly to CD1 mice, also in DBA/2 mice, memory and learning were impaired. Our data confirm that long-term exposure to corticosteroids can generate or aggravate psychiatric/neurologic disorders such as depression, anxiety, memory and learning. Our study did not reveal significant differences between corticosterone and BTM treatment in CD1 mice. In contrast, BTM treatment in mice with an anxious phenotype (DBA/2 mice) revealed some contrasting results indicating that genetic factors can influence corticosteroids dependent effects. Finally, our data further underline the need for a re-evaluation of neurogenesis role; the increased neurogenesis observed in DBA/2 mice and behavioral effects might be distinguished phenomena.
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Affiliation(s)
- Rossana Aiello
- Science of Health Department, School of Medicine, University of Catanzaro, Italy
| | - Rosalia Crupi
- Department of Biological and Environmental Science, University of Messina, Italy
| | - Antonio Leo
- Science of Health Department, School of Pharmacy, University of Catanzaro, Italy
| | - Serafina Chimirri
- Science of Health Department, School of Medicine, University of Catanzaro, Italy
| | - Vincenzo Rispoli
- Science of Health Department, School of Pharmacy, University of Catanzaro, Italy
| | - Rosario Marra
- National Council of Research (CNR), Institute of Neurological Science, Catanzaro, Italy
| | - Rita Citraro
- Science of Health Department, School of Medicine, University of Catanzaro, Italy
| | - Salvatore Cuzzocrea
- Department of Biological and Environmental Science, University of Messina, Italy
| | | | - Emilio Russo
- Science of Health Department, School of Medicine, University of Catanzaro, Italy.
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17
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Exposition to tannery wastewater did not alter behavioral and biochemical parameters in Wistar rats. Physiol Behav 2014; 129:160-6. [DOI: 10.1016/j.physbeh.2014.02.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 02/04/2014] [Accepted: 02/05/2014] [Indexed: 11/27/2022]
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18
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Favreau-Peigné A, Calandreau L, Constantin P, Gaultier B, Bertin A, Arnould C, Laurence A, Richard-Yris MA, Houdelier C, Lumineau S, Boissy A, Leterrier C. Emotionality modulates the effect of chronic stress on feeding behaviour in birds. PLoS One 2014; 9:e87249. [PMID: 24498302 PMCID: PMC3911932 DOI: 10.1371/journal.pone.0087249] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 12/20/2013] [Indexed: 11/19/2022] Open
Abstract
Chronic stress is a long-lasting negative emotional state that induces negative consequences on animals' psycho-physiological state. This study aimed at assessing whether unpredictable and repeated negative stimuli (URNS) influence feeding behaviour in quail. Sixty-four quail were exposed to URNS from day 17 to 40, while 64 quail were undisturbed. Two lines divergently selected on their inherent emotionality were used to assess the effect of genetic factors on the sensitivity to URNS. All quail were submitted to a sequential feeding procedure (using two diets of different energetic values) which placed them in a contrasting situation. Behavioural tests were performed to assess the emotional reactivity of the two lines. Results confirmed that differences exist between them and that their emotional reactivity was enhanced by URNS. Diet preferences, motivation and daily intake were also measured. URNS did not change the preferences for the hypercaloric diet compared to the hypocaloric diet in choice tests, but they reduced daily intakes in both lines. Motivations for each diet were differently affected by URNS: they decreased the motivation to eat the hypercaloric diet in quail selected for their low inherent fearfulness whereas they increased the motivation to eat the hypocaloric diet in quail selected for their high inherent fearfulness, which suggested a devaluation process in the former and a compensatory behaviour in the later. Growth was furthermore reduced and laying delayed by URNS in both lines. In conclusion, the exposure to URNS induced interesting changes in feeding behaviour added with an increase in emotional reactivity and an alteration of production parameters. This confirms that both lines of quail experienced a chronic stress state. However differences in feed motivation and emotional reactivity between lines under chronic stress suggested that they experienced different emotional state and use different ways to cope with it depending on their genetic background.
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Affiliation(s)
- Angélique Favreau-Peigné
- UMR 791 Modélisation Systémique Appliquée aux Ruminants, AgroParisTech, Paris, France
- UMR 791 Modélisation Systémique Appliquée aux Ruminants, INRA, Paris, France
| | - Ludovic Calandreau
- UMR 85 Physiologie de la Reproduction et des Comportements, INRA, Nouzilly, France
- UMR 6175, CNRS, Nouzilly, France
- Université de Tours, Tours, France
- IFCE, Nouzilly, France
| | - Paul Constantin
- UMR 85 Physiologie de la Reproduction et des Comportements, INRA, Nouzilly, France
- UMR 6175, CNRS, Nouzilly, France
- Université de Tours, Tours, France
- IFCE, Nouzilly, France
| | - Bernard Gaultier
- UE 1295 Pôle d’Expérimentation Avicole de Tours, INRA, Nouzilly, France
| | - Aline Bertin
- UMR 85 Physiologie de la Reproduction et des Comportements, INRA, Nouzilly, France
- UMR 6175, CNRS, Nouzilly, France
- Université de Tours, Tours, France
- IFCE, Nouzilly, France
| | - Cécile Arnould
- UMR 85 Physiologie de la Reproduction et des Comportements, INRA, Nouzilly, France
- UMR 6175, CNRS, Nouzilly, France
- Université de Tours, Tours, France
- IFCE, Nouzilly, France
| | - Agathe Laurence
- Ethos UMR 6552, Université de Rennes 1, CNRS, Rennes, France
| | | | | | - Sophie Lumineau
- Ethos UMR 6552, Université de Rennes 1, CNRS, Rennes, France
| | - Alain Boissy
- UMR 1213 Herbivores, INRA, St-Genès Champanelle, France
| | - Christine Leterrier
- UMR 85 Physiologie de la Reproduction et des Comportements, INRA, Nouzilly, France
- UMR 6175, CNRS, Nouzilly, France
- Université de Tours, Tours, France
- IFCE, Nouzilly, France
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Abstract
We previously observed that social instability stress (SS: daily 1 h isolation and change of cage partners for 16 days) in adolescence, but not in adulthood, decreased context and cue memory after fear conditioning in male rats. Effects of stress are typically sex-specific, and so here we investigated adolescent and adult SS effects in females on the strength of acquired contextual and cued fear conditioning, as well as extinction learning, beginning either the day after the stress procedure or four weeks later. For SS in adolescence, SS females spent more time freezing (fear measure) during extinction than did controls, whereas SS in adulthood had no effect on any measure of fear conditioning. The results also indicated an effect of age: females in late adolescence show more rapid extinction of cue and better memory of extinction of context compared to adult females, which may indicate resilience to acute footshock in adolescence. Thus fear circuitry continues to mature into late adolescence, which may underlie the heightened plasticity in response to chronic stressors of adolescents compared to adults.
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Affiliation(s)
- C M McCormick
- Centre for Neuroscience, Brock University , St. Catharines, Ontario , Canada
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20
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Adolescent fluoxetine treatment decreases the effects of neonatal immune activation on anxiety-like behavior in mice. Behav Brain Res 2013; 250:123-32. [DOI: 10.1016/j.bbr.2013.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 04/29/2013] [Accepted: 05/03/2013] [Indexed: 12/24/2022]
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Amani M, Samadi H, Doosti MH, Azarfarin M, Bakhtiari A, Majidi-Zolbanin N, Mirza-Rahimi M, Salari AA. Neonatal NMDA receptor blockade alters anxiety- and depression-related behaviors in a sex-dependent manner in mice. Neuropharmacology 2013; 73:87-97. [PMID: 23688920 DOI: 10.1016/j.neuropharm.2013.04.056] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/26/2013] [Accepted: 04/28/2013] [Indexed: 11/29/2022]
Abstract
There is increasing evidence that N-methyl-D-aspartate (NMDA) receptor blockade in the neonatal period has a long-lasting influence on brain and behavior development and has been linked to an increased risk for neuropsychiatric disorders in later life. We sought to determine whether postnatal NMDA receptor blockade can affect normal development of body weight, corticosterone levels, anxiety- and depression-related behaviors in male and female mice in adulthood. For this purpose, male and female NMRI mice were treated with either saline or phencyclidine (PCP; 5 and 10 mg/kg, s.c.) on postnatal days (PND) 7, 9, and 11, and then subjected to different behavioral tests, including open field, elevated plus-maze, elevated zero-maze, light-dark box, tail suspension test and forced swimming test in adulthood. The results indicated that neonatal PCP treatment reduced body weight during neonatal and adulthood periods, and did not alter baseline corticosterone levels in both male and female mice. Moreover, this study obtained some experimental evidence showing the PCP at dose of 10 mg/kg increases stress-induced corticosterone levels, anxiety- and depression-related behaviors in males, while decreasing levels of anxiety without any significant effect on depression in female mice in adulthood. These data support the argument that neonatal NMDA receptor blockade can lead to behavioral abnormalities and psychiatric diseases in adulthood. Collectively, our findings suggest that neonatal exposure to PCP may have profound effects on the development of anxiety- and depression-related behaviors in a sex- and dose-dependent manner in mice.
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Affiliation(s)
- Mohammad Amani
- Department of Physiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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Chakravarty S, Reddy BR, Sudhakar SR, Saxena S, Das T, Meghah V, Brahmendra Swamy CV, Kumar A, Idris MM. Chronic unpredictable stress (CUS)-induced anxiety and related mood disorders in a zebrafish model: altered brain proteome profile implicates mitochondrial dysfunction. PLoS One 2013; 8:e63302. [PMID: 23691016 PMCID: PMC3653931 DOI: 10.1371/journal.pone.0063302] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 04/02/2013] [Indexed: 11/18/2022] Open
Abstract
Anxiety and depression are major chronic mood disorders, and the etiopathology for each appears to be repeated exposure to diverse unpredictable stress factors. Most of the studies on anxiety and related mood disorders are performed in rodents, and a good model is chronic unpredictable stress (CUS). In this study, we have attempted to understand the molecular basis of the neuroglial and behavioral changes underlying CUS-induced mood disorders in the simplest vertebrate model, the zebrafish, Danio rerio. Zebrafish were subjected to a CUS paradigm in which two different stressors were used daily for 15 days, and thorough behavioral analyses were performed to assess anxiety and related mood disorder phenotypes using the novel tank test, shoal cohesion and scototaxis. Fifteen days of exposure to chronic stressors appears to induce an anxiety and related mood disorder phenotype. Decreased neurogenesis, another hallmark of anxiety and related disorders in rodents, was also observed in this zebrafish model. The common molecular markers of rodent anxiety and related disorders, corticotropin-releasing factor (CRF), calcineurin (ppp3r1a) and phospho cyclic AMP response element binding protein (pCREB), were also replicated in the fish model. Finally, using 2DE FTMS/ITMSMS proteomics analyses, 18 proteins were found to be deregulated in zebrafish anxiety and related disorders. The most affected process was mitochondrial function, 4 of the 18 differentially regulated proteins were mitochondrial proteins: PHB2, SLC25A5, VDAC3 and IDH2, as reported in rodent and clinical samples. Thus, the zebrafish CUS model and proteomics can facilitate not only uncovering new molecular targets of anxiety and related mood disorders but also the routine screening of compounds for drug development.
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Affiliation(s)
- Sumana Chakravarty
- Chemical Biology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, India
- * E-mail: (SC); (MMI)
| | - Bommana R. Reddy
- Chemical Biology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, India
| | - Sreesha R. Sudhakar
- CSIR-Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, India
| | - Sandeep Saxena
- CSIR-Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, India
| | - Tapatee Das
- Chemical Biology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, India
| | - Vuppalapaty Meghah
- CSIR-Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, India
| | | | - Arvind Kumar
- CSIR-Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, India
| | - Mohammed M. Idris
- CSIR-Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, India
- * E-mail: (SC); (MMI)
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Gonik M, Frank E, Keßler MS, Czamara D, Bunck M, Yen YC, Pütz B, Holsboer F, Bettecken T, Landgraf R, Müller-Myhsok B, Touma C, Czibere L. The endocrine stress response is linked to one specific locus on chromosome 3 in a mouse model based on extremes in trait anxiety. BMC Genomics 2012; 13:579. [PMID: 23114097 PMCID: PMC3557225 DOI: 10.1186/1471-2164-13-579] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 10/29/2012] [Indexed: 12/17/2022] Open
Abstract
Background The hypothalamic-pituitary-adrenal (HPA) axis is essential to control physiological stress responses in mammals. Its dysfunction is related to several mental disorders, including anxiety and depression. The aim of this study was to identify genetic loci underlying the endocrine regulation of the HPA axis. Method High (HAB) and low (LAB) anxiety-related behaviour mice were established by selective inbreeding of outbred CD-1 mice to model extremes in trait anxiety. Additionally, HAB vs. LAB mice exhibit comorbid characteristics including a differential corticosterone response upon stress exposure. We crossbred HAB and LAB lines to create F1 and F2 offspring. To identify the contribution of the endocrine phenotypes to the total phenotypic variance, we examined multiple behavioural paradigms together with corticosterone secretion-based phenotypes in F2 mice by principal component analysis. Further, to pinpoint the genomic loci of the quantitative trait of the HPA axis stress response, we conducted genome-wide multipoint oligogenic linkage analyses based on Bayesian Markov chain Monte Carlo approach as well as parametric linkage in three-generation pedigrees, followed by a two-dimensional scan for epistasis and association analysis in freely segregating F2 mice using 267 single-nucleotide polymorphisms (SNPs), which were identified to consistently differ between HAB and LAB mice as genetic markers. Results HPA axis reactivity measurements and behavioural phenotypes were represented by independent principal components and demonstrated no correlation. Based on this finding, we identified one single quantitative trait locus (QTL) on chromosome 3 showing a very strong evidence for linkage (2ln (L-score) > 10, LOD > 23) and significant association (lowest Bonferroni adjusted p < 10-28) to the neuroendocrine stress response. The location of the linkage peak was estimated at 42.3 cM (95% confidence interval: 41.3 - 43.3 cM) and was shown to be in epistasis (p-adjusted < 0.004) with the locus at 35.3 cM on the same chromosome. The QTL harbours genes involved in steroid synthesis and cardiovascular effects. Conclusion The very prominent effect on stress-induced corticosterone secretion of the genomic locus on chromosome 3 and its involvement in epistasis highlights the critical role of this specific locus in the regulation of the HPA axis.
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Affiliation(s)
- Mariya Gonik
- Max Planck Institute of Psychiatry, Munich, Germany
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24
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From the stressed adolescent to the anxious and depressed adult: investigations in rodent models. Neuroscience 2012; 249:242-57. [PMID: 22967838 DOI: 10.1016/j.neuroscience.2012.08.063] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Revised: 08/25/2012] [Accepted: 08/28/2012] [Indexed: 02/08/2023]
Abstract
Anxiety and depression are the most prevalent of the psychiatric disorders. The average age of onset of these disorders is in adolescence, and stressful experiences are recognized as an important pathway to such dysfunction. Until recently, however, most animal models of these disorders involved adult males. We provide a brief overview of anxiety and depression and the extent to which adolescent rodents are a valid model for their investigation, and briefly review the main measures of anxiety-like and depressive behaviour in rodents. The focus of the review is investigations in which adolescent rodents were exposed to chronic stressors, describing our research using social instability stress and that of other researchers using various social and non-social stressors. The evidence to date suggests stress in adolescence alters the trajectory of brain development, and particularly that of the hippocampus, increasing anxiety and depressive behaviour in adulthood.
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25
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Brand L, van Zyl J, Minnaar EL, Viljoen F, du Preez JL, Wegener G, Harvey BH. Corticolimbic changes in acetylcholine and cyclic guanosine monophosphate in the Flinders Sensitive Line rat: a genetic model of depression. Acta Neuropsychiatr 2012; 24:215-25. [PMID: 25286814 DOI: 10.1111/j.1601-5215.2011.00622.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Objective: Depression is suggested to involve disturbances in cholinergic as well as glutamatergic pathways, particularly the N-methyl-d-aspartate receptor-mediated release of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP). The aim of this study was to determine whether the Flinders Sensitive Line (FSL) rat, a genetic model of depression, presents with corticolimbic changes in basal acetylcholine (ACh) levels and NO/cGMP signalling.Methods: Basal levels of nitrogen oxides (NOx) and both basal and l-arginine-stimulated nitric oxide synthase (NOS) formation of l-citrulline were analysed in hippocampus and frontal cortex in FSL and control Flinders resistant line (FRL) rats by fluorometric and electrochemical high-performance liquid chromatography, respectively. In addition, ACh and cGMP levels were analysed by liquid chromatography tandem mass spectrometry and radioimmunoassay, respectively.Results: Significantly elevated frontal cortical but reduced hippocampal ACh levels were observed in FSL versus FRL rats. Basal cGMP levels were significantly reduced in the frontal cortex, but not hippocampus, of FSL rats without changes in NOx and l-citrulline, suggesting that the reduction of cGMP follows through an NOS-independent mechanism.Conclusions: These data confirm a bidirectional change in ACh in the frontal cortex and hippocampus of the FSL rat, as well as provide evidence for a frontal cortical ACh-cGMP interaction in the depressive-like behaviour of the FSL rat.
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Affiliation(s)
- Linda Brand
- Division of Pharmacology, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
| | - Jurgens van Zyl
- Division of Pharmacology, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
| | - Estella L Minnaar
- Division of Pharmacology, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
| | - Francois Viljoen
- Division of Pharmacology, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
| | - Jan L du Preez
- Analytical Technology Laboratory, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
| | - Gregers Wegener
- Centre for Psychiatric Research, University of Aarhus, Denmark
| | - Brian H Harvey
- Division of Pharmacology, Unit for Drug Research and Development, School of Pharmacy, North-West University, Potchefstroom, South Africa
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Ishitobi Y, Nakayama S, Yamaguchi K, Kanehisa M, Higuma H, Maruyama Y, Ninomiya T, Okamoto S, Tanaka Y, Tsuru J, Hanada H, Isogawa K, Akiyoshi J. Association of CRHR1 and CRHR2 with major depressive disorder and panic disorder in a Japanese population. Am J Med Genet B Neuropsychiatr Genet 2012; 159B:429-36. [PMID: 22467522 DOI: 10.1002/ajmg.b.32046] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Accepted: 03/01/2012] [Indexed: 12/19/2022]
Abstract
Major depressive disorder (MDD) and panic disorder (PD) are common and disabling medical disorders with stress and genetic components. Dysregulation of the stress response of the hypothalamic-pituitary-adrenal axis, including the corticotrophin-releasing hormone (CRH) signaling via primary receptors (CRHR1 and CRHR2), is considered to play a major role for onset and recurrence in MDD and PD. To confirm the association of CRHR1 and CRHR2 with MDD and PD, we investigated 12 single nucleotide polymorphisms (SNPs) (rs4076452, rs7209436, rs110402, rs242924, rs242940, and rs173365 for CRHR1 and rs4722999, rs3779250, rs2267710, rs1076292, rs2284217, and rs226771 for CRHR2) in MDD patients (n = 173), PD patients (n = 180), and healthy controls (n = 285). The SNP rs110402 and rs242924 in the CRHR1 gene and the rs3779250 in the CRHR2 gene were associated with MDD. The SNP rs242924 in the CRHR1 gene was also associated with PD. The T-A-T-G-G haplotype consisting of rs7209436 and rs173365 in CRHR1 was positively associated with MDD. The T-A haplotype consisting of rs7209436 and rs110402 in CRHR1 was positively associated with MDD. The C-C haplotype consisting of rs4722999 and rs37790 in CRHR1 was associated with PD. These results provide support for an association of CRHR1 and CRHR2 with MDD and PD.
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Affiliation(s)
- Yoshinobu Ishitobi
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Hasama-Machi, Yufu-Shi, Oita, Japan
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Zahn-Waxler C. Socialization of emotion: who influences whom and how? New Dir Child Adolesc Dev 2012; 2010:101-9. [PMID: 20552660 DOI: 10.1002/cd.271] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Emotion socialization begins within the family setting and extends outward as children transition into expanded social worlds. Children contribute to their socialization from the first years of life, so the dynamics between parents and children are reciprocal in nature. Because socialization influences are best inferred from patterns that unfold over time, longitudinal research can help to untangle these processes. Laboratory observations of emotion exchanges and discussions or experimental manipulations of environmental processes also provide valuable information about causal influences and direction of effects. Parents and children must be studied within the same research designs to understand emotion socialization.
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Enayati M, Solati J, Hosseini MH, Shahi HR, Saki G, Salari AA. Maternal infection during late pregnancy increases anxiety- and depression-like behaviors with increasing age in male offspring. Brain Res Bull 2012; 87:295-302. [DOI: 10.1016/j.brainresbull.2011.08.015] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 08/08/2011] [Accepted: 08/22/2011] [Indexed: 11/30/2022]
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Rao JS, Kellom M, Reese EA, Rapoport SI, Kim HW. RETRACTED: Dysregulated glutamate and dopamine transporters in postmortem frontal cortex from bipolar and schizophrenic patients. J Affect Disord 2012; 136:63-71. [PMID: 21925739 PMCID: PMC3254216 DOI: 10.1016/j.jad.2011.08.017] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Accepted: 08/16/2011] [Indexed: 12/27/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of The National Institutes of Health has found that the first author, Dr. Jagadeesh S. Rao engaged in research misconduct by falsifying data in “Dysregulated glutamate and dopamine transporters in postmortem frontal cortex from bipolar and schizophrenic patients”. Rao JS, Kellom M, Reese EA, Rapoport SI, Kim HW. J. Affect Disord. 136(1–2):63–71. 2012. Data in Figures 2A, 2B, 3A, 3B and 4A were falsified.
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Affiliation(s)
- Jagadeesh Sridhara Rao
- Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States.
| | - Matthew Kellom
- Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States
| | - Edmund Arthur Reese
- Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States
| | - Stanley Isaac Rapoport
- Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States
| | - Hyung-Wook Kim
- Brain Physiology and Metabolism Section, National Institute on Aging, National Institutes of Health, Bethesda, MD, United States
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Abstract
The rapid increase in the number of proposed animal models of depression reflects the dissatisfaction with our current state of knowledge on neurobiology of depression and unsuccessful drug development. Results obtained with even the best validated models can be difficult to compare. Because evidence from epidemiological studies suggests that depression occurs in biologically predisposed subjects under the impact of adverse life events, increasing attempts have been made to use the diathesis-stress concept in animal models. In this way, factors underpinning vulnerability to depression have been identified by measuring behavioural traits analogous to facets of human personality, or created by inducing neurochemical lesions. Stressful interventions administered prenatally, in early life or in adulthood have been combined with other vulnerability factors including genetic changes. As a result, several putative animal models of endophenotypes of depression or depression vulnerability have been proposed. Diathesis-stress models may aid in separating adaptive and maladaptive strategies in coping with stress, and understanding the relevant neurobiology. Studies comparing effects of stress on males and females should reveal to which extent the pathogenetic processes leading to depression can be specific to sex/gender.
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Affiliation(s)
- Jaanus Harro
- Unit of Psychophysiology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Estonia.
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31
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Calandreau L, Favreau-Peigné A, Bertin A, Constantin P, Arnould C, Laurence A, Lumineau S, Houdelier C, Richard-Yris M, Boissy A, Leterrier C. Higher inherent fearfulness potentiates the effects of chronic stress in the Japanese quail. Behav Brain Res 2011; 225:505-10. [DOI: 10.1016/j.bbr.2011.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 08/01/2011] [Accepted: 08/06/2011] [Indexed: 12/20/2022]
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Hennessy MB, Paik KD, Caraway JD, Schiml PA, Deak T. Proinflammatory activity and the sensitization of depressive-like behavior during maternal separation. Behav Neurosci 2011; 125:426-33. [PMID: 21500883 DOI: 10.1037/a0023559] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
When guinea pig pups are isolated for a few hours in a novel environment, they exhibit a distinctive passive behavioral response that appears to be mediated by proinflammatory activity. Recently, we observed that pups separated on two consecutive days show an enhanced (sensitized) passive response on the second day. In Experiment 1, pups receiving intracerebroventricular infusion of 50 ng of the anti-inflammatory cytokine interleukin-10 prior to a first separation failed to show a sensitized behavioral response to separation the next day. In Experiment 2, pups separated on Days 1 and 2, or just 2, showed an increase in passive responding during separation on Day 5. Pups injected with the bacterial antigen lipopolysacchride (LPS; 75 μg/kg body weight, intraperitoneal) prior to separation on Day 1 showed an increase in passive behavior several days later not shown by pups injected with saline prior to Day 1 separation. However, injection of LPS without separation on the first day did not enhance responding during an initial separation on the second day. These results suggest that immune activation is necessary, but not sufficient, to account for the sensitization of passive behavior of isolated guinea pig pups the following day, that boosting proinflammatory activity during an initial separation may promote sensitization several days later, and that the sensitized response persists for at least several days.
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Affiliation(s)
- Michael B Hennessy
- Department of Psychology, Wright State University, Dayton, OH 45435, USA.
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Savignac H, Finger B, Pizzo R, O'Leary O, Dinan T, Cryan J. Increased sensitivity to the effects of chronic social defeat stress in an innately anxious mouse strain. Neuroscience 2011; 192:524-36. [DOI: 10.1016/j.neuroscience.2011.04.054] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 04/25/2011] [Indexed: 01/03/2023]
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Lazary J, Juhasz G, Hunyady L, Bagdy G. Personalized medicine can pave the way for the safe use of CB1 receptor antagonists. Trends Pharmacol Sci 2011; 32:270-80. [DOI: 10.1016/j.tips.2011.02.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/14/2011] [Accepted: 02/18/2011] [Indexed: 12/15/2022]
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Savignac HM, Dinan TG, Cryan JF. Resistance to early-life stress in mice: effects of genetic background and stress duration. Front Behav Neurosci 2011; 5:13. [PMID: 21519375 PMCID: PMC3075880 DOI: 10.3389/fnbeh.2011.00013] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 03/03/2011] [Indexed: 12/11/2022] Open
Abstract
Early-life stress can induce marked behavioral and physiological impairments in adulthood including cognitive deficits, depression, anxiety, and gastrointestinal dysfunction. Although robust rat models of early-life stress exist there are few established effective paradigms in the mouse. Genetic background and protocol parameters used are two critical variables in such model development. Thus we investigated the impact of two different early-life stress protocols in two commonly used inbred mouse strains. C57BL/6 and innately anxious BALB/c male mice were maternally deprived 3 h daily, either from postnatal day 1 to 14 (protocol 1) or 6 to 10 (protocol 2). Animals were assessed in adulthood for cognitive performance (spontaneous alternation behavior test), anxiety [open-field, light/dark box (L/DB), and elevated plus maze (EPM) tests], and depression-related behaviors (forced swim test) in addition to stress-sensitive physiological changes. Overall, the results showed that early-life stressed mice from both strains displayed good cognitive ability and no elevations in anxiety. However, paradoxical changes occurred in C57BL/6 mice as the longer protocol (protocol 1) decreased anxiety in the L/DB and increased exploration in the EPM. In BALB/c mice there were also limited effects of maternal separation with both separation protocols inducing reductions in stress-induced defecation and protocol 1 reducing the colon length. These data suggest that, independent of stress duration, mice from both strains were on the whole resilient to the maladaptive effects of early-life stress. Thus maternal separation models of brain–gut axis dysfunction should rely on either different stressor protocols or other strains of mice.
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Affiliation(s)
- Hélène M Savignac
- Laboratory of Neurogastroenterology, Alimentary Pharmabiotic Centre, University College Cork Cork, Ireland
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Effects of stressors and immune activating agents on peripheral and central cytokines in mouse strains that differ in stressor responsivity. Brain Behav Immun 2011; 25:468-82. [PMID: 21093579 DOI: 10.1016/j.bbi.2010.11.008] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 12/29/2022] Open
Abstract
The impact of inflammatory immune activation on behavioral and physiological processes varies with antecedent stressor experiences. We assessed whether immune activation would differentially influence such outcomes as a function of stressor reactivity related to genetic differences. To this end, we assessed the influence of a social stressor (exposure to a dominant mouse) in combination with an acute immune challenge on behavior and on peripheral and central cytokines in stressor-reactive BALB/cByJ mice and the less reactive C57BL/6ByJ strain. As C57BL/6ByJ and BALB/cByJ mice are highly T helper type-1 (Th1) and Th2 responsive, respectively, the stressor effects were assessed in response to different challenges, namely the viral analogue poly I:C and the bacterial endotoxin lipopolysaccharide (LPS). The stressor enhanced the effects of LPS on sickness behaviors and plasma corticosterone particularly in BALB/cByJ mice, whereas the effects of poly I:C, which primarily affects Th1 processes, were not augmented by the stressor. As well, the stressor increased circulating cytokines in LPS treated C57BL/6ByJ mice, whereas the effects of poly I:C were diminished. Finally, like circulating cytokines, mRNA expression of pro-inflammatory cytokines within the prefrontal cortex and hippocampus varied with the mouse strain and with the stressor experience, and with the specific cytokine considered. Together, the experiments indicated that the impact of stressors vary with the nature of the immune challenge to which animals had been exposed. Moreover, given the diversity of the stressor effects on central and peripheral processes, it seems likely that the cytokine changes, HPA activity and sickness operate through independent mechanisms.
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Gouin JP, Connors J, Kiecolt-Glaser JK, Glaser R, Malarkey WB, Atkinson C, Beversdorf D, Quan N. Altered expression of circadian rhythm genes among individuals with a history of depression. J Affect Disord 2010; 126:161-6. [PMID: 20471092 PMCID: PMC2930045 DOI: 10.1016/j.jad.2010.04.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 03/02/2010] [Accepted: 04/09/2010] [Indexed: 01/22/2023]
Abstract
BACKGROUND Depression has been associated with several circadian rhythm perturbations, suggesting a disruption of the circadian clock system in affective disorders. The interaction of several circadian clock genes generates these daily circadian rhythms. METHODS This cross-sectional study evaluated whether circadian gene expression differed between individuals with a history of depression and participants without a similar history. The participants were 60 healthy older adults. Half of the participants had a history of depression. Real-time quantitative polymerase chain reaction was used to measure the circadian gene Clock, BMAL1, Period1, and Period2 messenger RNA levels in peripheral blood leukocytes. RESULTS Individuals with a history of depression had higher Clock, Period1, and Bmal1 mRNA levels, compared to non-depressed participants. LIMITATIONS Although circadian gene expression fluctuates throughout the day, clock gene mRNA levels were evaluated only in the morning. CONCLUSIONS These results suggest that disruptions of the molecular mechanisms underlying the circadian clock system may be associated with depression.
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Raspopow K, Abizaid A, Matheson K, Anisman H. Psychosocial stressor effects on cortisol and ghrelin in emotional and non-emotional eaters: influence of anger and shame. Horm Behav 2010; 58:677-84. [PMID: 20540943 DOI: 10.1016/j.yhbeh.2010.06.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2009] [Revised: 06/02/2010] [Accepted: 06/02/2010] [Indexed: 10/19/2022]
Abstract
Food consumption in stressful situations vary as a function of individual difference factors (e.g., emotional vs. non-emotional eating), and may be related to hormonal responses elicited by the stressful event. These hormonal responses may be tied to specific emotions elicited by the stressful event. The present investigation examined the emotional and hormonal (cortisol, ghrelin) responses of high and low emotional eaters following a laboratory stressor (Trier Social Stress Test; TSST). Women (n=48) either high or low in emotional eating status were tested in a TSST or served as controls during which blood samples were taken for analysis of cortisol and ghrelin, both of which have been implicated in eating and in response to stressors. The TSST promoted elevated cortisol levels, being somewhat more pronounced in emotional than in non-emotional eaters. Both shame and anger were provoked by the TSST, and although both these emotions were correlated with cortisol levels, only anger significantly mediated the relationship between the stressor and cortisol levels. As well, baseline ghrelin levels in low emotional eaters exceeded that of high emotional eaters, and increased moderately in response to the stressor situation, irrespective of emotional eating status. Interestingly, when provided with food, ghrelin levels declined in the non-emotional eaters, but not in emotional eaters. The possibility is offered that the lack of a decline of ghrelin in emotional eaters may sustain eating in these individuals.
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Affiliation(s)
- Kate Raspopow
- Institute of Neuroscience, Carleton University, Ottawa, Ontario, Canada
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39
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Braquehais MD, Sher L. Posttraumatic stress disorder in war veterans: a discussion of the Neuroevolutionary Time-depth Principle. J Affect Disord 2010; 125:1-9. [PMID: 19733913 DOI: 10.1016/j.jad.2009.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 08/12/2009] [Accepted: 08/18/2009] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Trauma is a universal phenomenon. Violence is a type of trauma and war is one of the ways in which violence is expressed. The "Neuroevolutionary Time-depth Principle" of innate fears, based on prevalence data, suggests that high rates of posttraumatic stress disorder (PTSD) after combat exposure can be due to the fact that this fear-stress response appeared as a reaction to inter-group male-to-male and intra-group killings after the rising of population densities in the Neolithic period. MATERIAL AND METHODS Studies of PTSD prevalence available in MEDLINE, Institute for Scientific Information Databases (Science Citation Index Expanded, Social Sciences Citation Index, and Arts and Humanities Citation Index), EMBASE, and Cochrane Library were identified and reviewed. RESULTS Prevalence data of PTSD deeply vary from one country to another, even in groups exposed to similar stressors. Moreover, war is not a uniform and unchanged phenomenon and not all war stressors are similar because some of them are known to lead to PTSD more than others. DISCUSSION We argue that psychosocial narratives deeply influence our biological response to trauma and violence, shaping the genotypical response to trauma. Great differences in prevalence may be in part due to this fact. We also suggest that personal preconceptions and socio-cultural interests may also be playing a critical role in the theories developed to explain the nature of our response to violence. CONCLUSION A comprehensive model for war-related PTSD should integrate both genotypical and phenotypical findings.
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Affiliation(s)
- María Dolores Braquehais
- Department of Psychiatry, Vall d'Hebron University Hospital, Paseo Vall d'Hebron, 119-129, 08035, Barcelona, Spain.
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40
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Jacobson-Pick S, Audet MC, Nathoo N, Anisman H. Stressor experiences during the juvenile period increase stressor responsivity in adulthood: transmission of stressor experiences. Behav Brain Res 2010; 216:365-74. [PMID: 20732357 DOI: 10.1016/j.bbr.2010.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 08/13/2010] [Accepted: 08/16/2010] [Indexed: 01/31/2023]
Abstract
Stressors experienced by rodents during the juvenile period may have repercussions on anxiety and impulsivity that extend into adulthood. In the present investigation we demonstrate that during social interactions stressed adults might transmit their responses to juveniles thereby affecting later behavioral responses in adulthood. In the present investigation adult mice exposed to a stressor, exhibited altered social exploration of a juvenile (26-28 day old) mouse that comprised reduced body contact but elevated anogenital and facial contact. The juvenile mice that encountered the stressed adult, in turn, exhibited greater impulsivity in an elevated plus maze test, as well as elevated corticosterone levels. In a second experiment, adult animals that had experienced a stressor during the juvenile period also exhibited reduced social exploration (of a juvenile), but upon exposure to a further social stressor (social defeat), social exploration was altered further. Furthermore, when tested in an elevated plus maze the juvenile mice that had encountered an adult that had itself been stressed as a juvenile, exhibited increased impulsivity. However, if they encountered an adult that had been stressed both as a juvenile and as an adult, the behavioral profile of the juveniles was altered yet again in that they exhibited greater impulsivity coupled with anxiety. It is suggested that the juvenile period represents one during which stressor sensitivity is high, so that transmission of stressor effects from adults occurs readily. Moreover, stressors experienced during the juvenile period may have persistent effects on social behaviors, thereby affecting conspecifics with which they interact.
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Affiliation(s)
- Shlomit Jacobson-Pick
- Carleton University, Institute of Neuroscience, Ottawa, 1125 Colonel By Drive Ottawa, K1S5B6 Ontario, Canada.
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41
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Vollenweider FX, Kometer M. The neurobiology of psychedelic drugs: implications for the treatment of mood disorders. Nat Rev Neurosci 2010; 11:642-51. [DOI: 10.1038/nrn2884] [Citation(s) in RCA: 398] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Patterson ZR, Ducharme R, Anisman H, Abizaid A. Altered metabolic and neurochemical responses to chronic unpredictable stressors in ghrelin receptor-deficient mice. Eur J Neurosci 2010; 32:632-9. [PMID: 20597975 DOI: 10.1111/j.1460-9568.2010.07310.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ghrelin, a hormone produced by the stomach, is generally associated with feeding responses and the regulation of food intake. Recent evidence, however, suggests that ghrelin is also a stress hormone, given that it is released following acute and chronic stressors. The present study examined the role of ghrelin in producing normal metabolic and neurochemical responses to chronic stress. This was achieved by examining these responses in mice with targeted deletions of the ghrelin receptor gene (GHSR KO mice), and comparing them with the same responses in their wild-type (WT) littermates. As expected, WT stressed mice decreased their caloric intake, body weight gain and caloric efficiency while maintaining adiposity. GHSR KO mice, however, did not show these alterations despite having normal glucocorticoid responses to stress. In parallel with these changes, chronic unpredictable stress caused changes in norepinephrine, dopamine and serotonin in a number of brain regions. Of these, norepinephrine neurotransmission in the arcuate nucleus and prefrontal cortex was differentially altered in GHSR KO mice. Within the nucleus acumbens, dopamine utilization was increased in WT mice but not in GHSR KO mice. Finally, there were strain differences in serotonin neurotransmission that may explain interstrain body weight and adiposity differences. These results suggest that the metabolic changes necessary to deal with the energetic challenge presented by repeated exposure to stressors do not occur in GHSR KO mice, and they are discussed within the context of the potential vulnerability to stress-induced pathology.
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Affiliation(s)
- Z R Patterson
- Institute of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, K1S 5B6 ON, Canada
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43
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Magalhaes AC, Holmes KD, Dale LB, Comps-Agrar L, Lee D, Yadav PN, Drysdale L, Poulter MO, Roth BL, Pin JP, Anisman H, Ferguson SSG. CRF receptor 1 regulates anxiety behavior via sensitization of 5-HT2 receptor signaling. Nat Neurosci 2010; 13:622-9. [PMID: 20383137 PMCID: PMC2862362 DOI: 10.1038/nn.2529] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 03/04/2010] [Indexed: 12/13/2022]
Abstract
Stress and anxiety disorders are risk factors for depression and these behaviors are modulated by corticotrophin-releasing factor receptor 1 (CRFR1) and serotonin receptor (5-HT(2)R). However, the potential behavioral and cellular interaction between these two receptors is unclear. We found that pre-administration of corticotrophin-releasing factor (CRF) into the prefrontal cortex of mice enhanced 5-HT(2)R-mediated anxiety behaviors in response to 2,5-dimethoxy-4-iodoamphetamine. In both heterologous cell cultures and mouse cortical neurons, activation of CRFR1 also enhanced 5-HT(2) receptor-mediated inositol phosphate formation. CRFR1-mediated increases in 5-HT(2)R signaling were dependent on receptor internalization and receptor recycling via rapid recycling endosomes, resulting in increased expression of 5-HT(2)R on the cell surface. Sensitization of 5-HT(2)R signaling by CRFR1 required intact PDZ domain-binding motifs at the end of the C-terminal tails of both receptor types. These data suggest a mechanism by which CRF, a peptide known to be released by stress, enhances anxiety-related behavior via sensitization of 5-HT(2)R signaling.
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Affiliation(s)
- Ana C Magalhaes
- J. Allyn Taylor Centre for Cell Biology, Molecular Brain Research Group, Robarts Research and the Department of Physiology & Pharmacology, The University of Western Ontario, London, Ontario, Canada
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Genetic, Epigenetic and Environmental Factors in Serotonin Associated Disease Condition. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/s1569-7339(10)70108-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Poulter MO, Du L, Zhurov V, Merali Z, Anisman H. Plasticity of the GABA(A) receptor subunit cassette in response to stressors in reactive versus resilient mice. Neuroscience 2009; 165:1039-51. [PMID: 19931360 DOI: 10.1016/j.neuroscience.2009.11.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 10/15/2009] [Accepted: 11/10/2009] [Indexed: 12/12/2022]
Abstract
GABA(A) functioning has been implicated in anxiety and depressive disorders. In this regard, we suggested that in addition to analyzing GABA(A) and the subunits that comprise the GABA(A) receptor, it might be profitable to assess the coordinated expression of subunits that comprise the GABA(A) receptor cassette. We demonstrate that certain subunits within stress-sensitive brain regions were higher in stressor reactive BALB/cByJ than in hardy C57BL/6ByJ mice, and that a chronic, intermittent, variable stressor (6 days/week over 7 weeks) differentially influenced subunit expression in these strains. Further, mRNA expression of GABA(A) subunits were highly coordinated (inter-correlated), and markedly altered by stressors, once again varying with brain region. At the central amygdala of BALB/cByJ mice the ordinarily high subunit inter-relations were reduced in acutely stressed mice, and this outcome was exacerbated with a chronic stressor. In C57BL/6ByJ mice subunit inter-relations were lower than in BALB/cByJ mice; the acute stressor increased subunit organization, which returned to control levels with following a chronic stressor. The profile of amygdala subunit inter-relations was recapitulated in a step-down behavioral test; anxiety was increased by acute and chronic stressors in BALB/cByJ mice, but in the C57BL/6ByJ strain the elevated anxiety associated with an acute stressor was not apparent after chronic stressor treatment. The anxiety could be dissociated from apparent anhedonia (reflected by free sucrose consumption) where the preference for sucrose was reduced by an acute stressor, but this outcome was more pronounced following a chronic stressor, especially in BALB/cByJ mice. These findings support the view that analyses involving subunit organization, rather than just differences in absolute levels, may be expedient in assessing GABA(A) functioning in stressor-related psychological disturbances.
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Affiliation(s)
- M O Poulter
- Molecular Brain (Research Group), Robarts Research Institute, Department of Physiology and Pharmacology, University of Western Ontario, London, ON, Canada.
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46
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Wang K, Cui J, Cai Y, Wang F, Li Y, Tao W, Xiang H. Critical Roles of Voltage-Dependent Sodium Channels in the Process of Synaptogenesis During the Postnatal Cortical Development of Rats. Cell Mol Neurobiol 2009; 29:1131-42. [DOI: 10.1007/s10571-009-9404-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Accepted: 04/02/2009] [Indexed: 12/13/2022]
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47
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Baune B. Conceptual challenges of a tentative model of stress-induced depression. PLoS One 2009; 4:e4266. [PMID: 19180238 PMCID: PMC2629549 DOI: 10.1371/journal.pone.0004266] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Accepted: 01/05/2009] [Indexed: 11/18/2022] Open
Affiliation(s)
- Bernhard Baune
- Department of Psychiatry and Psychiatric Neuroscience, James Cook University, Queensland, Australia.
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Assessment of anxiety-like behaviors in female rats bred for differences in kindling susceptibility and amygdala excitability. Brain Res 2008; 1240:143-52. [DOI: 10.1016/j.brainres.2008.08.090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Revised: 08/28/2008] [Accepted: 08/30/2008] [Indexed: 11/23/2022]
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49
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Pardon MC, Rattray I. What do we know about the long-term consequences of stress on ageing and the progression of age-related neurodegenerative disorders? Neurosci Biobehav Rev 2008; 32:1103-20. [DOI: 10.1016/j.neubiorev.2008.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 02/18/2008] [Accepted: 02/20/2008] [Indexed: 12/21/2022]
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