101
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Ekinci O, Ekinci A. The connections among suicidal behavior, lipid profile and low-grade inflammation in patients with major depressive disorder: a specific relationship with the neutrophil-to-lymphocyte ratio. Nord J Psychiatry 2017; 71:574-580. [PMID: 28800269 DOI: 10.1080/08039488.2017.1363285] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The role of inflammation and lipid metabolism in the pathophysiology of suicidal behavior has received particular attention in recent years. The neutrophil-to-lymphocyte ratio (NLR) has been suggested as a new and more reliable indicator of low-grade inflammation. NLR has been found to be altered in major depressive disorder (MDD) and has been related to various factors, including chronic stress and impulsivity that were previously reported to be related to suicidal behavior. We aimed to explore the roles of NLR, C-reactive protein (CRP) and serum lipid levels on suicidal behavior in patients with MDD. METHODS The study group consisted of 139 inpatients diagnosed with MDD [37 suicide attempters (SA); 102 suicide non-attempters (NSA)], 50 healthy controls and matched according to age, gender and education. NLR, PLR, CRP and lipid values were obtained from digital inpatient records. RESULTS CRP levels and NLR were substantially higher in patients with SA than in subjects with NSA and healthy comparison subjects after adjusting the confounding factors. The logistic regression included two predictive variables for suicide status in patients with depressive disorder (A) previous suicidal history; (B) NLR. CONCLUSIONS This is the first study suggesting that NLR may be a trait marker for suicidal vulnerability via a relationship between NLR and a recent suicide attempt in depressed inpatients. Future prospective studies are needed to determine the exact roles of NLR, and other inflammatory markers on suicidality in MDD.
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Affiliation(s)
- Okan Ekinci
- a Department of Psychiatry , Usak University Medical Faculty, Education and Training Hospital , Usak , Turkey
| | - Asli Ekinci
- a Department of Psychiatry , Usak University Medical Faculty, Education and Training Hospital , Usak , Turkey
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102
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Association between high sensitivity CRP and suicidal ideation in the Korean general population. Eur Neuropsychopharmacol 2017; 27:885-891. [PMID: 28663123 DOI: 10.1016/j.euroneuro.2017.06.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/24/2017] [Accepted: 06/10/2017] [Indexed: 12/27/2022]
Abstract
Inflammation has been linked with a potential critical role in suicide. The purpose of this study is to examine the relation of CRP with suicidal behavior in the Korean population. We conducted a cross-sectional study in 4693 Korean adults aged 20-81 years who participated in the 2015 Korea National Health and Nutrition Examination Survey. High sensitivity CRP levels were measured by immunoturbidimetric method. Suicidal ideation and suicide attempt were assessed by using a questionnaire. Data were analyzed in 2017. Multiple logistic regression analysis was used to compute odds ratios (ORs) and 95% confidence intervals (CIs). The prevalence of suicidal ideation was 4.9% and that of suicide attempt was 0.4%. Suicidal ideation was more prevalent in the highest compared with the lowest serum CRP quartile (OR, 1.79; 95% CI, 1.11-2.89) after adjustment for age, sex, household income, educational level, marital status, employment status, alcohol dependency, current smoking, physical activity, BMI, sleep duration, number of chronic diseases, restriction on activity, subjective health status, perceived stress, depression and depressive mood (p for trend<0.05). In conclusion, elevated levels of CRP were associated with an increased risk of suicidal ideation among South Korean adults.
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103
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Dickerson F, Adamos M, Katsafanas E, Khushalani S, Origoni A, Savage C, Schweinfurth L, Stallings C, Sweeney K, Alaedini A, Uhde M, Severance E, Wilcox HC, Yolken R. The association between immune markers and recent suicide attempts in patients with serious mental illness: A pilot study. Psychiatry Res 2017; 255:8-12. [PMID: 28505469 DOI: 10.1016/j.psychres.2017.05.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/25/2017] [Accepted: 05/04/2017] [Indexed: 11/28/2022]
Abstract
Previous studies have identified elevations in markers of gastrointestinal inflammation in schizophrenia and mood disorders but studies have not measured the association between these markers and recent suicide attempts. We assessed 210 patients receiving treatment for schizophrenia, bipolar disorder, or major depression. We employed the Columbia Suicide Severity Rating Scale to identify recent and lifetime suicide attempts (actual, aborted, and interrupted). Psychiatric participants and a control group of 72 individuals without a psychiatric disorder had a blood sample drawn from which were measured specific markers of gastrointestinal inflammation and also C-Reactive protein (CRP). A total of 20 (10%) of psychiatric participants had a suicide attempt in the previous one month and 95 (45%) an attempt during their lifetime but not in the previous one month. The recent attempters had significantly elevated levels of antibodies to yeast mannan from Saccharomyces cerevisiae (ASCA), the food antigen gliadin, and bacterial lipopolysaccharide (LPS) compared with the non-psychiatric group when adjusting for demographic and clinical variables. These markers were not elevated in individuals with a past, but not recent, suicide attempt history. Our study indicates that there is evidence of gastrointestinal inflammation in some individuals who have had a recent suicide attempt.
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Affiliation(s)
- Faith Dickerson
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA.
| | - Maria Adamos
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Emily Katsafanas
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Sunil Khushalani
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Andrea Origoni
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Christina Savage
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Lucy Schweinfurth
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Cassie Stallings
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Kevin Sweeney
- Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Armin Alaedini
- Department of Medicine, Columbia University, New York, NY, USA
| | - Melanie Uhde
- Department of Medicine, Columbia University, New York, NY, USA
| | - Emily Severance
- Stanley Neurovirology Laboratory, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Holly C Wilcox
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Robert Yolken
- Stanley Neurovirology Laboratory, Johns Hopkins School of Medicine, Baltimore, MD, USA
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104
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Husain MI, Chaudhry IB, Husain N, Khoso AB, Rahman RR, Hamirani MM, Hodsoll J, Qurashi I, Deakin JF, Young AH. Minocycline as an adjunct for treatment-resistant depressive symptoms: A pilot randomised placebo-controlled trial. J Psychopharmacol 2017; 31:1166-1175. [PMID: 28857658 DOI: 10.1177/0269881117724352] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Evidence suggests that anti-inflammatory medication may be effective in the treatment of depressive symptoms. In this study, we aimed to investigate whether minocycline added to treatment as usual (TAU) for 3 months in patients with treatment-resistant depression will lead to an improvement in depressive symptoms. METHODS Multi-site, 12-week, double-blind, placebo-controlled, pilot trial of minocycline added to TAU for patients suffering from DSM-5 major depressive disorder, whose current episode has failed to respond to at least two antidepressants. The primary outcome measure was mean change in Hamilton Depression Rating Scale (HAMD-17) scores from baseline to week 12. Secondary measures were the Clinical Global Impression scale (CGI), Patient Health Questionnaire-9 (PHQ-9), the Generalised Anxiety Disorder scale (GAD-7) and EuroQoL (EQ-5D) quality-of-life questionnaire. Side-effect checklists were also used. Minocycline was started at 100 mg once daily (OD) and increased to 200 mg after 2 weeks. RESULTS A total of 41 participants were randomised, with 21 in the minocycline group and 20 in the placebo group. A large decrease in HAMD scores was observed in the minocycline group compared to the placebo group (standardised effect size (ES) -1.21, p < 0.001). CGI scores in the minocycline group also showed a large improvement compared with placebo (odds ratio (OR): 17.6, p < 0.001). PHQ-9, GAD-7 and EQ-5D total showed more moderate improvements (ES ~ 0.4-0.5). CONCLUSION The findings indicate that adjunctive minocycline leads to improvement in symptoms of treatment-resistant depression. However, our findings require replication in a larger sample. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT02263872, registered October 2014.
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Affiliation(s)
| | | | | | - Ameer B Khoso
- 2 Pakistan Institute of Living and Learning, Karachi, Pakistan
| | - Raza R Rahman
- 4 Dow University of Health Sciences, Karachi, Pakistan
| | | | - John Hodsoll
- 6 Institute of Psychiatry, King's College London, London, UK
| | - Inti Qurashi
- 7 Mersey Care NHS Foundation Trust, Liverpool, UK
| | | | - Allan H Young
- 6 Institute of Psychiatry, King's College London, London, UK
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105
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Husain MI, Strawbridge R, Stokes PR, Young AH. Anti-inflammatory treatments for mood disorders: Systematic review and meta-analysis. J Psychopharmacol 2017; 31:1137-1148. [PMID: 28858537 DOI: 10.1177/0269881117725711] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recent studies suggest that anti-inflammatory medication may play a role in the treatment of mood disorders. AIMS The purpose of this study was to determine the efficacy of anti-inflammatory drugs in patients with major depressive disorder and bipolar disorder. METHOD The Cochrane Central Register of Controlled Trials, PubMed, EMBASE, PsychINFO and Clinicaltrials.gov were searched from inception until 15 April 2017 for completed and on-going randomized controlled trials of anti-inflammatory agents for major depressive disorder and bipolar disorder. Data from randomized controlled trials assessing the antidepressant and anti-manic effect of adjunctive mechanistically diverse anti-inflammatory agents were pooled to determine standard mean differences (SMDs) compared with placebo and/or treatment as usual. RESULTS Patients receiving anti-inflammatory agents showed lower post-treatment depressive symptom scores compared with those receiving placebo with a standard mean difference of -0.71 (six randomized controlled trials, n=214, 95% CI -1.24 to -0.17, p=0.009). Anti-inflammatory treatment was found to reduce post-treatment manic symptom scores with a standard mean difference of -0.72 (three randomized controlled trials, n=96, 95% CI -1.31 to -0.13, p=0.02). Anti-inflammatories did not show a statistically significant improvement in the secondary outcome measure (change in symptom scores from baseline to outcome). CONCLUSIONS Further high quality trials are needed before making recommendations for the routine clinical use of anti-inflammatories in the treatment of mood disorders.
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Affiliation(s)
- Muhammad I Husain
- 1 Camden and Islington NHS Foundation Trust, St Pancras Hospital, London, UK
| | | | - Paul Ra Stokes
- 2 Centre for Affective Disorders, King's College London, London, UK
| | - Allan H Young
- 2 Centre for Affective Disorders, King's College London, London, UK
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106
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Grosser T, Theken KN, FitzGerald GA. Cyclooxygenase Inhibition: Pain, Inflammation, and the Cardiovascular System. Clin Pharmacol Ther 2017; 102:611-622. [PMID: 28710775 DOI: 10.1002/cpt.794] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 07/11/2017] [Indexed: 12/26/2022]
Abstract
Inhibitors of the cyclooxygenases (COXs), the nonsteroidal antiinflammatory drugs (NSAIDs), relieve inflammatory pain, but are associated with gastrointestinal and cardiovascular complications. Given the widespread use of NSAIDs, there has been a longstanding interest in optimizing their risk-benefit ratio, for example by reducing their gastrointestinal risk. More recently, the focus has shifted toward the cardiovascular complications of NSAIDs and very large prospective studies have been performed to compare cardiovascular risk across distinct NSAIDs. Surprisingly, much less attention has been paid to the efficacy side of the risk-benefit ratio. There is marked variability in the degree of pain relief by NSAIDs due to the complex interplay of molecular mechanisms contributing to the pain sensation, variability in the disposition of NSAIDs, and imprecision in the quantification of human pain. Here we discuss how NSAIDs relieve pain, how molecular mechanisms relate to clinical efficacy, and how this may inform our interpretation of clinical trials.
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Affiliation(s)
- Tilo Grosser
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Katherine N Theken
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Garret A FitzGerald
- Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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107
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Tombácz D, Maróti Z, Kalmár T, Csabai Z, Balázs Z, Takahashi S, Palkovits M, Snyder M, Boldogkői Z. High-Coverage Whole-Exome Sequencing Identifies Candidate Genes for Suicide in Victims with Major Depressive Disorder. Sci Rep 2017; 7:7106. [PMID: 28769055 PMCID: PMC5541090 DOI: 10.1038/s41598-017-06522-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/14/2017] [Indexed: 01/06/2023] Open
Abstract
We carried out whole-exome ultra-high throughput sequencing in brain samples of suicide victims who had suffered from major depressive disorder and control subjects who had died from other causes. This study aimed to reveal the selective accumulation of rare variants in the coding and the UTR sequences within the genes of suicide victims. We also analysed the potential effect of STR and CNV variations, as well as the infection of the brain with neurovirulent viruses in this behavioural disorder. As a result, we have identified several candidate genes, among others three calcium channel genes that may potentially contribute to completed suicide. We also explored the potential implication of the TGF-β signalling pathway in the pathogenesis of suicidal behaviour. To our best knowledge, this is the first study that uses whole-exome sequencing for the investigation of suicide.
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Affiliation(s)
- Dóra Tombácz
- Department of Medical Biology, Faculty of Medicine, University of Szeged, Somogyi B. u. 4., Szeged, H-6720, Hungary.,Department of Genetics, School of Medicine, Stanford University, 300 Pasteur Dr., Stanford, CA, 94305-5120, USA
| | - Zoltán Maróti
- Department of Paediatrics, Faculty of Medicine, University of Szeged, Korányi fasor 14-15., Szeged, H-6720, Hungary
| | - Tibor Kalmár
- Department of Paediatrics, Faculty of Medicine, University of Szeged, Korányi fasor 14-15., Szeged, H-6720, Hungary
| | - Zsolt Csabai
- Department of Medical Biology, Faculty of Medicine, University of Szeged, Somogyi B. u. 4., Szeged, H-6720, Hungary
| | - Zsolt Balázs
- Department of Medical Biology, Faculty of Medicine, University of Szeged, Somogyi B. u. 4., Szeged, H-6720, Hungary
| | - Shinichi Takahashi
- Department of Genetics, School of Medicine, Stanford University, 300 Pasteur Dr., Stanford, CA, 94305-5120, USA
| | - Miklós Palkovits
- Neuromorphological and Neuroendocrine Research Laboratory, Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Üllői u. 26., H-1085, Hungary
| | - Michael Snyder
- Department of Genetics, School of Medicine, Stanford University, 300 Pasteur Dr., Stanford, CA, 94305-5120, USA.
| | - Zsolt Boldogkői
- Department of Medical Biology, Faculty of Medicine, University of Szeged, Somogyi B. u. 4., Szeged, H-6720, Hungary.
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108
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Abstract
PURPOSE The aim of this paper is to investigate the association between suicide and Lyme and associated diseases (LAD). No journal article has previously performed a comprehensive assessment of this subject. INTRODUCTION Multiple case reports and other references demonstrate a causal association between suicidal risk and LAD. Suicide risk is greater in outdoor workers and veterans, both with greater LAD exposure. Multiple studies demonstrate many infections and the associated proinflammatory cytokines, inflammatory-mediated metabolic changes, and quinolinic acid and glutamate changes alter neural circuits which increase suicidality. A similar pathophysiology occurs in LAD. METHOD A retrospective chart review and epidemiological calculations were performed. RESULTS LAD contributed to suicidality, and sometimes homicidality, in individuals who were not suicidal before infection. A higher level of risk to self and others is associated with multiple symptoms developing after acquiring LAD, in particular, explosive anger, intrusive images, sudden mood swings, paranoia, dissociative episodes, hallucinations, disinhibition, panic disorder, rapid cycling bipolar, depersonalization, social anxiety disorder, substance abuse, hypervigilance, generalized anxiety disorder, genital-urinary symptoms, chronic pain, anhedonia, depression, low frustration tolerance, and posttraumatic stress disorder. Negative attitudes about LAD from family, friends, doctors, and the health care system may also contribute to suicide risk. By indirect calculations, it is estimated there are possibly over 1,200 LAD suicides in the US per year. CONCLUSION Suicidality seen in LAD contributes to causing a significant number of previously unexplained suicides and is associated with immune-mediated and metabolic changes resulting in psychiatric and other symptoms which are possibly intensified by negative attitudes about LAD from others. Some LAD suicides are associated with being overwhelmed by multiple debilitating symptoms, and others are impulsive, bizarre, and unpredictable. Greater understanding and a direct method of acquiring LAD suicide statistics is needed. It is suggested that medical examiners, the Centers for Disease Control and Prevention, and other epidemiological organizations proactively evaluate the association between LAD and suicide.
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109
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Jeenger J, Sharma M, Mathur DM, Amandeep. Associations of number and severity of depressive episodes with C-reactive protein and Interleukin-6. Asian J Psychiatr 2017; 27:71-75. [PMID: 28558901 DOI: 10.1016/j.ajp.2017.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/09/2017] [Accepted: 02/16/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Many researchers have found that the inflammatory process in the body and the brain may result in psychiatric disorders. Meta-analyses of cross-sectional studies have reported increase in inflammatory markers in depression. However, the direction of the association remains unclear. AIMS To compare the levels of C-reactive protein (CRP) and Interleukin-6 (IL-6) in depressed and healthy controls. To study the associations of these biomarkers with severity and number of depressive episodes. METHODS A total of 72 subjects with major depression and 60 healthy controls were studied. CRP and IL-6 were measured in all subjects. RESULTS No significant differences were noted between depressed patients and healthy controls with regard to CRP (p=0.29) and IL-6 (p=0.50). Those who were suffering from severe depression based on Beck's Depressive Inventory (BDI), were positively correlated with raised CRP (p=0.011) in comparison to patients with mild to moderate depression. Single and recurrent depressive disorder (RDD) were not associated with significant rise in CRP (p=0.866) and IL-6 (p=0.531). CONCLUSIONS Severity of depression is correlated with elevated CRP but not with IL-6. No association found between number of depressive episodes and levels of CRP and IL-6. It is possible that immune dysregulation is not generally present in depression, but might be restricted to particular subgroups of depressed patients. Several factors that could influence the depression and inflammation relationship need further investigation.
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Affiliation(s)
- Jitendra Jeenger
- Department of Psychiatry, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
| | - Manu Sharma
- Department of Psychiatry, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
| | - Devendra Mohan Mathur
- Department of Psychiatry, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
| | - Amandeep
- Department of Psychiatry, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
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110
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Köhler CA, Freitas TH, Maes M, de Andrade NQ, Liu CS, Fernandes BS, Stubbs B, Solmi M, Veronese N, Herrmann N, Raison CL, Miller BJ, Lanctôt KL, Carvalho AF. Peripheral cytokine and chemokine alterations in depression: a meta-analysis of 82 studies. Acta Psychiatr Scand 2017; 135:373-387. [PMID: 28122130 DOI: 10.1111/acps.12698] [Citation(s) in RCA: 871] [Impact Index Per Article: 124.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/29/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To conduct a systematic review and meta-analysis of studies that measured cytokine and chemokine levels in individuals with major depressive disorder (MDD) compared to healthy controls (HCs). METHOD The PubMed/MEDLINE, EMBASE, and PsycINFO databases were searched up until May 30, 2016. Effect sizes were estimated with random-effects models. RESULT Eighty-two studies comprising 3212 participants with MDD and 2798 HCs met inclusion criteria. Peripheral levels of interleukin-6 (IL-6), tumor necrosis factor (TNF)-alpha, IL-10, the soluble IL-2 receptor, C-C chemokine ligand 2, IL-13, IL-18, IL-12, the IL-1 receptor antagonist, and the soluble TNF receptor 2 were elevated in patients with MDD compared to HCs, whereas interferon-gamma levels were lower in MDD (Hedge's g = -0.477, P = 0.043). Levels of IL-1β, IL-2, IL-4, IL-8, the soluble IL-6 receptor (sIL-6R), IL-5, CCL-3, IL-17, and transforming growth factor-beta 1 were not significantly altered in individuals with MDD compared to HCs. Heterogeneity was large (I2 : 51.6-97.7%), and sources of heterogeneity were explored (e.g., age, smoking status, and body mass index). CONCLUSION Our results further characterize a cytokine/chemokine profile associated with MDD. Future studies are warranted to further elucidate sources of heterogeneity, as well as biosignature cytokines secreted by other immune cells.
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Affiliation(s)
- C A Köhler
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - T H Freitas
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - M Maes
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Geelong, Australia.,Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Department of Psychiatry, Faculty of Medicine, State University of Londrina, Londrina, PR, Brazil.,Department of Psychiatry, Medical University Plovdiv, Plovdiv, Bulgaria.,Revitalis, Waalre, The Netherlands
| | - N Q de Andrade
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - C S Liu
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program Sunnybrook Research Institute, Toronto, ON, Canada
| | - B S Fernandes
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Geelong, Australia.,Laboratory of Calcium Binding Proteins in the Central Nervous System, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - B Stubbs
- Physiotherapy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill, London, UK.,Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK
| | - M Solmi
- Department of Neurosciences, University of Padova, Padova, Italy.,Institute of Clinical Research and Education in Medicine (IREM), Padova, Italy
| | - N Veronese
- Department of Neurosciences, University of Padova, Padova, Italy.,Department of Medicine, DIMED, Geriatrics Section, University of Padova, Padova, Italy
| | - N Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - C L Raison
- Department of Human Development and Family Studies, School of Human Ecology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - B J Miller
- Department of Psychiatry & Health Behavior, Augusta University, Augusta, GA, USA
| | - K L Lanctôt
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - A F Carvalho
- Translational Psychiatry Research Group and Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
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111
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Bryleva EY, Keaton SA, Grit J, Madaj Z, Sauro-Nagendra A, Smart L, Halstead S, Achtyes E, Brundin L. The acute-phase mediator serum amyloid A is associated with symptoms of depression and fatigue. Acta Psychiatr Scand 2017; 135:409-418. [PMID: 28374419 DOI: 10.1111/acps.12730] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/01/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Establish whether inflammatory biomarkers-serum amyloid A (SAA), C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α)-are related to key symptoms of depression, including anxiety and fatigue, in a cross-sectional, out-patient setting to identify biomarkers that reflect psychiatric symptomatology in a naturalistic, real-life population. METHODS We measured SAA, CRP, IL-6, and TNF-α in plasma samples from 89 adult psychiatric out-patients by multiplex, high-sensitivity electrochemiluminescent assays. Psychiatric symptoms were evaluated using the Hamilton Depression Rating Scale (HAMD-17), the Patient Health Questionnaire (PHQ-9), and the Center for Epidemiological Studies Depression Scale (CES-D). RESULTS Plasma SAA was most robustly associated with depressive symptoms across diagnostic boundaries in this cohort of out-patients. Elevated SAA was significantly associated with higher total scores on the HAMD-17 scale and correlated with multiple scale items that rated symptoms of fatigue and depressed mood, but not with anxiety-related items. CONCLUSIONS SAA might constitute a cross-diagnostic marker indicative of depressed mood and fatigue in a naturalistic patient setting. Because SAA activates Toll-like receptors 2 and 4, present on macrophages and glial cells, its association with depression severity could also implicate this inflammatory mediator in the pathogenesis of mood disorders.
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Affiliation(s)
- E Y Bryleva
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - S A Keaton
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA.,Division of Psychiatry and Behavioral Medicine, Michigan State University, Grand Rapids, MI, USA.,Department of Physiology, Michigan State University, East Lansing, MI, USA
| | - J Grit
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Z Madaj
- Bioinformatics and Biostatistics Core, Van Andel Research Institute, Grand Rapids, MI, USA
| | - A Sauro-Nagendra
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - L Smart
- Pine Rest Christian Mental Health Services, Grand Rapids, MI, USA
| | - S Halstead
- Pine Rest Christian Mental Health Services, Grand Rapids, MI, USA
| | - E Achtyes
- Division of Psychiatry and Behavioral Medicine, Michigan State University, Grand Rapids, MI, USA.,Pine Rest Christian Mental Health Services, Grand Rapids, MI, USA
| | - L Brundin
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA.,Pine Rest Christian Mental Health Services, Grand Rapids, MI, USA
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112
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Gould TD, Georgiou P, Brenner LA, Brundin L, Can A, Courtet P, Donaldson ZR, Dwivedi Y, Guillaume S, Gottesman II, Kanekar S, Lowry CA, Renshaw PF, Rujescu D, Smith EG, Turecki G, Zanos P, Zarate CA, Zunszain PA, Postolache TT. Animal models to improve our understanding and treatment of suicidal behavior. Transl Psychiatry 2017; 7:e1092. [PMID: 28398339 PMCID: PMC5416692 DOI: 10.1038/tp.2017.50] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 01/16/2017] [Accepted: 02/01/2017] [Indexed: 02/08/2023] Open
Abstract
Worldwide, suicide is a leading cause of death. Although a sizable proportion of deaths by suicide may be preventable, it is well documented that despite major governmental and international investments in research, education and clinical practice suicide rates have not diminished and are even increasing among several at-risk populations. Although nonhuman animals do not engage in suicidal behavior amenable to translational studies, we argue that animal model systems are necessary to investigate candidate endophenotypes of suicidal behavior and the neurobiology underlying these endophenotypes. Animal models are similarly a critical resource to help delineate treatment targets and pharmacological means to improve our ability to manage the risk of suicide. In particular, certain pathophysiological pathways to suicidal behavior, including stress and hypothalamic-pituitary-adrenal axis dysfunction, neurotransmitter system abnormalities, endocrine and neuroimmune changes, aggression, impulsivity and decision-making deficits, as well as the role of critical interactions between genetic and epigenetic factors, development and environmental risk factors can be modeled in laboratory animals. We broadly describe human biological findings, as well as protective effects of medications such as lithium, clozapine, and ketamine associated with modifying risk of engaging in suicidal behavior that are readily translatable to animal models. Endophenotypes of suicidal behavior, studied in animal models, are further useful for moving observed associations with harmful environmental factors (for example, childhood adversity, mechanical trauma aeroallergens, pathogens, inflammation triggers) from association to causation, and developing preventative strategies. Further study in animals will contribute to a more informed, comprehensive, accelerated and ultimately impactful suicide research portfolio.
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Affiliation(s)
- T D Gould
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - P Georgiou
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - L A Brenner
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Rocky Mountain Mental Illness Research Education and Clinical Center, Denver, CO, USA
- Military and Veteran Microbiome Consortium for Research and Education, U.S. Department of Veterans Affairs, Washington, DC, USA
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - L Brundin
- Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - A Can
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Psychology, Notre Dame of Maryland University, Baltimore, MD, USA
| | - P Courtet
- Department of Emergency Psychiatry and Post Acute Care, CHU Montpellier, Montpellier, France
- Université Montpellier, Inserm U1061, Montpellier, France
| | - Z R Donaldson
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA
- Department of Psychology, University of Colorado, Boulder, Boulder, CO, USA
- Department of Neuroscience, University of Colorado Boulder, Boulder, CO, USA
| | - Y Dwivedi
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - S Guillaume
- Department of Emergency Psychiatry and Post Acute Care, CHU Montpellier, Montpellier, France
- Université Montpellier, Inserm U1061, Montpellier, France
| | - I I Gottesman
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN, USA
| | - S Kanekar
- Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - C A Lowry
- Rocky Mountain Mental Illness Research Education and Clinical Center, Denver, CO, USA
- Military and Veteran Microbiome Consortium for Research and Education, U.S. Department of Veterans Affairs, Washington, DC, USA
- Department of Integrative Physiology and Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA
- Department of Physical Medicine and Rehabilitation and Center for Neuroscience, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - P F Renshaw
- Rocky Mountain Mental Illness Research Education and Clinical Center, Denver, CO, USA
- Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - D Rujescu
- Department of Psychiatry, University of Halle-Wittenberg, Halle, Germany
| | - E G Smith
- Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA, USA
| | - G Turecki
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - P Zanos
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - C A Zarate
- Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - P A Zunszain
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - T T Postolache
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
- Rocky Mountain Mental Illness Research Education and Clinical Center, Denver, CO, USA
- Military and Veteran Microbiome Consortium for Research and Education, U.S. Department of Veterans Affairs, Washington, DC, USA
- VISN 5 Mental Illness Research Education and Clinical Center, Baltimore MD, USA
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Shimmyo N, Hishimoto A, Otsuka I, Okazaki S, Boku S, Mouri K, Horai T, Takahashi M, Ueno Y, Shirakawa O, Sora I. Association study of MIF promoter polymorphisms with suicide completers in the Japanese population. Neuropsychiatr Dis Treat 2017; 13:899-908. [PMID: 28367056 PMCID: PMC5370383 DOI: 10.2147/ndt.s130855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Numerous studies suggest that inflammation plays a key role in suicidal behavior. Macrophage migration inhibitory factor (MIF), a proinflammatory cytokine, has received increasing attention in depression research. However, no study has investigated whether MIF has genetic involvement in completed suicide. In this study, we sought to explore the relationship between two functional polymorphisms on the MIF gene promoter (MIF-794CATT5-8 microsatellite and MIF-173G/C single-nucleotide polymorphism [SNP]) and completed suicide by using one of the largest samples of suicide completers ever reported. METHODS The subjects comprised 602 suicide completers and 728 healthy controls. We genotyped MIF-794CATT5-8 microsatellite by polymerase chain reaction-based size discrimination assay and MIF-173G/C SNP by TaqMan® SNP genotyping assay. The allele-, genotype-, or haplotype-based association analyses between the suicide completers and the controls were carried out with the χ2 test, the Cochran-Armitage trend test, or Fisher's exact test. RESULTS Analyses of allele or genotype frequency distributions of the polymorphisms studied here did not reveal any significant differences between the suicide completers and the controls. Haplotype analysis also revealed no association with completed suicide. CONCLUSION To our knowledge, this is the first study that has examined the genetic association between MIF and completed suicide. Our results suggest that the effects of MIF-794CATT5-8 microsatellite and MIF-173G/C SNP on the MIF gene promoter might not contribute to the genetic risk of completed suicide in the Japanese population.
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Affiliation(s)
- Naofumi Shimmyo
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Akitoyo Hishimoto
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Ikuo Otsuka
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Satoshi Okazaki
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Shuken Boku
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Kentaro Mouri
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Tadasu Horai
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Motonori Takahashi
- Division of Legal Medicine, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Yasuhiro Ueno
- Division of Legal Medicine, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
| | - Osamu Shirakawa
- Department of Neuropsychiatry, Kindai University Faculty of Medicine, Osaka, Japan
| | - Ichiro Sora
- Department of Psychiatry, Department of Community Medicine and Social Health Science, Kobe University Graduate School of Medicine, Kobe
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Brundin L, Bryleva EY, Thirtamara Rajamani K. Role of Inflammation in Suicide: From Mechanisms to Treatment. Neuropsychopharmacology 2017; 42:271-283. [PMID: 27377015 PMCID: PMC5143480 DOI: 10.1038/npp.2016.116] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/31/2016] [Accepted: 06/28/2016] [Indexed: 01/01/2023]
Abstract
Suicidal behavior is complex and manifests because of a confluence of diverse factors. One such factor involves dysregulation of the immune system, which has been linked to the pathophysiology of suicidal behavior. This review will provide a brief description of suicidality and discuss the contribution of upstream and downstream factors in the etiology of suicidal behavior, within the contextual framework of inflammation. The contribution of inflammatory conditions such as traumatic brain injury, autoimmune disorders, and infections to neuropsychiatric symptoms and suicidality is only beginning to be explored. We will summarize studies of inflammation in the etiology of suicide, and provide a neurobiological basis for different mechanisms by which inflammation might contribute to the pathophysiology. Finally, we will review treatments that affect upstream and downstream pathways related to inflammation in suicidality.
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Affiliation(s)
- Lena Brundin
- Laboratory of Behavioral Medicine, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Elena Y Bryleva
- Laboratory of Behavioral Medicine, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Keerthi Thirtamara Rajamani
- Laboratory of Behavioral Medicine, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI, USA,Department of Behavioral Medicine, Laboratory of Behavioral Medicine, Center for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, MI 49503, USA, Tel:+1 616 234 5321, Fax: +1 616 234 5180, E-mail:
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Marini S, Vellante F, Matarazzo I, De Berardis D, Serroni N, Gianfelice D, Olivieri L, Di Renzo F, Di Marco A, Fornaro M, Orsolini L, Valchera A, Iasevoli F, Mazza M, Perna G, Martinotti G, Di Giannantonio M. Inflammatory markers and suicidal attempts in depressed patients: A review. Int J Immunopathol Pharmacol 2016; 29:583-594. [PMID: 26729403 PMCID: PMC5806831 DOI: 10.1177/0394632015623793] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 11/27/2015] [Indexed: 01/01/2023] Open
Abstract
Major depressive disorder is a chronic and invalidating psychiatric illness and is associated with a greater risk of suicidal behaviors. In recent decades many data have supported a biological link between depressive states and inflammation. Pro-inflammatory cytokines have been found to rise, first of all TNF-α and IL-6. Suicidal behaviors have been consistently associated with increased levels of IL-6 and decreased levels of IL-2. The aim of this review is to investigate the relationship between inflammatory markers in depressed patients with or without suicidal attempts compared to healthy controls.
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Affiliation(s)
- Stefano Marini
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
| | - Federica Vellante
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
| | - Ilaria Matarazzo
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
| | - Domenico De Berardis
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Nicola Serroni
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Daniela Gianfelice
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Luigi Olivieri
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Fulvia Di Renzo
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Anna Di Marco
- NHS, Department of Mental Health, Psychiatric Service of Diagnosis and Treatment, Hospital "G. Mazzini", ASL 4 Teramo, Italy
| | - Michele Fornaro
- Department of "Scienze della Formazione", University of Catania, Italy
| | - Laura Orsolini
- United Hospitals, Academic Department of Experimental and Clinical Medicine, Polytechnic University of Marche, Ancona, Italy
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
| | | | - Felice Iasevoli
- Laboratory of Molecular Psychiatry and Psychopharmacotherapeutics, Section of Psychiatry, Department of Neuroscience, University School of Medicine "Federico II", Naples, Italy
| | - Monica Mazza
- Department of Health Science, University of L'Aquila, L'Aquila, Italy
| | - Giampaolo Perna
- Hermanas Hospitalarias, Department of Clinical Neurosciences, Villa San Benedetto Menni, Albese con Cassano, Como, Italy
- Department of Psychiatry and Behavioral Sciences, Leonard Miller School of Medicine, University of Miami, Florida, USA
- Department of Psychiatry and Neuropsychology, University of Maastricht, The Netherlands
| | - Giovanni Martinotti
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
| | - Massimo Di Giannantonio
- Department of Neurosciences and Imaging, Chair of Psychiatry, University "G. D'Annunzio", Chieti, Italy
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Courtet P, Giner L, Seneque M, Guillaume S, Olie E, Ducasse D. Neuroinflammation in suicide: Toward a comprehensive model. World J Biol Psychiatry 2016. [PMID: 26223957 DOI: 10.3109/15622975.2015.1054879] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Suicidal behaviour (SB) entered the DSM-5, underlying a specific biological vulnerability. Then, recent findings suggested a possible role of the immune system in SB pathogenesis. The objective of this review is to present these main immune factors involved in SB pathogenesis. METHODS We conducted a review using Preferred Reporting Items for Systematic reviews and Meta-Analysis criteria, and combined ("Inflammation") AND ("Suicidal ideation" OR "Suicidal attempt" OR "suicide"). RESULTS Post mortem studies demonstrated associations between suicide and inflammatory cytokines in the orbitofrontal cortex, a brain region involved in suicidal vulnerability. Also, microgliosis and monocyte-macrophage system activation may be a useful marker of suicide neurobiology. Kynurenine may influence inflammatory processes, and related molecular pathways may be involved in SB pathophysiology. Few recent studies associated inflammatory markers with suicidal vulnerability: serotonin dysfunction, impulsivity and childhood trauma. Interestingly, the perception of threat that leads suicidal individuals to contemplate suicide may activate biological stress responses, including inflammatory responses. CONCLUSIONS Translational projects would be crucial to identify a specific marker in SB disorders, to investigate its clinical correlations, and the interaction between inflammatory cytokines and monoamine systems in SB. These researches might lead to new biomarkers and novel directions for therapeutic strategies.
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Affiliation(s)
- Philippe Courtet
- a Department of Emergency Psychiatry , Hôpital Lapeyronie, CHU Montpellier and Post Acute Care , CHU Montpellier , France.,b Inserm, University of Montpellier , Montpellier , France.,c FondaMental Foundation , France
| | | | - Maude Seneque
- a Department of Emergency Psychiatry , Hôpital Lapeyronie, CHU Montpellier and Post Acute Care , CHU Montpellier , France.,b Inserm, University of Montpellier , Montpellier , France.,c FondaMental Foundation , France
| | - Sebastien Guillaume
- a Department of Emergency Psychiatry , Hôpital Lapeyronie, CHU Montpellier and Post Acute Care , CHU Montpellier , France.,b Inserm, University of Montpellier , Montpellier , France.,c FondaMental Foundation , France
| | - Emilie Olie
- a Department of Emergency Psychiatry , Hôpital Lapeyronie, CHU Montpellier and Post Acute Care , CHU Montpellier , France.,b Inserm, University of Montpellier , Montpellier , France.,c FondaMental Foundation , France
| | - Deborah Ducasse
- a Department of Emergency Psychiatry , Hôpital Lapeyronie, CHU Montpellier and Post Acute Care , CHU Montpellier , France.,b Inserm, University of Montpellier , Montpellier , France.,c FondaMental Foundation , France
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117
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Rush G, O'Donovan A, Nagle L, Conway C, McCrohan A, O'Farrelly C, Lucey JV, Malone KM. Alteration of immune markers in a group of melancholic depressed patients and their response to electroconvulsive therapy. J Affect Disord 2016; 205:60-68. [PMID: 27414954 PMCID: PMC5291160 DOI: 10.1016/j.jad.2016.06.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 06/10/2016] [Accepted: 06/11/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Immune system dysfunction is implicated in the pathophysiology of major depression, and is hypothesized to normalize with successful treatment. We aimed to investigate immune dysfunction in melancholic depression and its response to ECT. METHODS 55 melancholic depressed patients and 26 controls participated. 33 patients (60%) were referred for ECT. Blood samples were taken at baseline, one hour after the first ECT session, and 48h after ECT series completion. RESULTS At baseline, melancholic depressed patients had significantly higher levels of the pro-inflammatory cytokine IL-6, and lower levels of the regulatory cytokine TGF-β than controls. A significant surge in IL-6 levels was observed one hour after the first ECT session, but neither IL-6 nor TGF-β levels normalized after completion of ECT series. Seventy per cent (n=23) of ECT recipients showed clinical response and 42% (n=10) reached remission. Neither IL-6 nor TGF-β changes correlated with clinical improvement following ECT. No significant changes in IL-10, TNF-α and CRP levels were found in relation to melancholia or response to ECT. LIMITATIONS As a naturalistic study, some potential confounders could not be eliminated or controlled, including medication use. CONCLUSIONS Melancholic depressed patients demonstrated a peripheral increase in IL-6 and reduction in TGF-β, which did not normalize despite clinical response to ECT. These findings may be consistent with emerging hypotheses of the role of inflammation in mediating neurotrophin expression. The implications of chronic inflammation in the melancholic depressed population for future medical health, particularly cardiovascular risk, are largely unknown and warrant further investigation.
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Affiliation(s)
- Gavin Rush
- St. Patrick's University Hospital, Dublin, Ireland.
| | - Aoife O'Donovan
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland; Department of Psychiatry, Psychotherapy and Mental Health Research, St. Vincent's University Hospital, Dublin, Ireland; Stress and Health Research Program, San Francisco Veteran's Affairs Medical Center, San Francisco, CA, United States; Department of Psychiatry, University of California, San Francisco, CA, United States
| | - Laura Nagle
- St. Patrick's University Hospital, Dublin, Ireland
| | | | - AnnMaria McCrohan
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland; Department of Psychiatry, Psychotherapy and Mental Health Research, St. Vincent's University Hospital, Dublin, Ireland
| | - Cliona O'Farrelly
- School of Biochemistry and Immunology, University of Dublin Trinity College, Dublin, Ireland
| | | | - Kevin M Malone
- School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland; Department of Psychiatry, Psychotherapy and Mental Health Research, St. Vincent's University Hospital, Dublin, Ireland
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Farooq RK, Asghar K, Kanwal S, Zulqernain A. Role of inflammatory cytokines in depression: Focus on interleukin-1β. Biomed Rep 2016; 6:15-20. [PMID: 28123701 DOI: 10.3892/br.2016.807] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 10/06/2016] [Indexed: 12/31/2022] Open
Abstract
According to the World Health Organization, major depression will become the leading cause of disability worldwide by the year 2030. Despite extensive research into the mechanisms underlying this disease, the rate, prevalence and disease burden has been on the rise, particularly in the industrialized world. Epidemiological studies have shown biological and biochemical differences in disease characteristics and treatment responses in different age groups. Notable differences have been observed in the clinical presentation, co-prevalence with other diseases, interaction with the immune system and even in the outcome. Thus, there is an increased interest in characterizing these differences, particularly in terms of contribution of different factors, including age, cytokines and immunotherapy. Research into the possible mechanisms of these interactions may reveal novel opportunities for future pharmacotherapy. The aim of the present review is to document recent literature regarding the impact of inflammatory mechanisms on the pathophysiology of the depressive disorder.
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Affiliation(s)
- Rai Khalid Farooq
- Department of Physiology, Army Medical College, National University of Medical Sciences, Rawalpindi, Punjab 46000, Pakistan
| | - Kashif Asghar
- Department of Basic Sciences Research, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, Punjab 54000, Pakistan
| | - Shahzina Kanwal
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510000, P.R. China
| | - Ali Zulqernain
- Department of Psychiatry and Behavioral Sciences, Sargodha Medical College, University of Sargodha, Sargodha, Punjab 40100, Pakistan
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Gibbs HM, Davis L, Han X, Clothier J, Eads LA, Cáceda R. Association between C-reactive protein and suicidal behavior in an adult inpatient population. J Psychiatr Res 2016; 79:28-33. [PMID: 27135541 DOI: 10.1016/j.jpsychires.2016.04.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To examine the relationship of inflammation and suicidal behavior in hospitalized adult psychiatric patients. METHOD We retrospectively examined serum high sensitivity C-reactive protein (hsCRP) levels in inpatients at a tertiary-level university hospital (N = 184). The inpatients comprised three cohorts: 1) patients admitted following a suicide attempt, 2) patients with suicidal ideation, and 3) inpatient psychiatric controls. Additionally, we gathered demographic data, clinical data, smoking status, white blood cell count, and fasting lipid panel. RESULTS As CRP level increased, the probability of patients belonging to the suicide attempt group increased as compared to both the probabilities of being in inpatient psychiatric control and or suicide ideation groups [OR = 2.09, CI = (1.29, 3.38) and OR = 1.75, CI = (1.15, 2.66) respectively]. We also observed a significant effect of depression in that depressed patients were more likely to have a suicide attempt when compared to patients with no depression or with mania [OR = 10.38, CI = (1.97, 54.70)]. CONCLUSIONS There seems to be an inflammation gradient, measured by CRP levels, from recent suicide attempters, suicidal ideators and psychiatric controls. We replicated the association between a pro-inflammatory state and suicidal behavior in a sample of "real world" severely ill psychiatric inpatients.
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Affiliation(s)
- Hunter M Gibbs
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Lauren Davis
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Xiaotong Han
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jeffrey Clothier
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Lou Ann Eads
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ricardo Cáceda
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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An enzyme in the kynurenine pathway that governs vulnerability to suicidal behavior by regulating excitotoxicity and neuroinflammation. Transl Psychiatry 2016; 6:e865. [PMID: 27483383 PMCID: PMC5022080 DOI: 10.1038/tp.2016.133] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/31/2016] [Accepted: 06/02/2016] [Indexed: 12/23/2022] Open
Abstract
Emerging evidence suggests that inflammation has a key role in depression and suicidal behavior. The kynurenine pathway is involved in neuroinflammation and regulates glutamate neurotransmission. In the cerebrospinal fluid (CSF) of suicidal patients, levels of inflammatory cytokines and the kynurenine metabolite quinolinic acid (QUIN), an N-methyl-d-aspartate receptor agonist, are increased. The enzyme amino-β-carboxymuconate-semialdehyde-decarboxylase (ACMSD) limits QUIN formation by competitive production of the neuroprotective metabolite picolinic acid (PIC). Therefore, decreased ACMSD activity can lead to excess QUIN. We tested the hypothesis that deficient ACMSD activity underlies suicidal behavior. We measured PIC and QUIN in CSF and plasma samples from 137 patients exhibiting suicidal behavior and 71 healthy controls. We used DSM-IV and the Montgomery-Åsberg Depression Rating Scale and Suicide Assessment Scale to assess behavioral changes. Finally, we genotyped ACMSD tag single-nucleotide polymorphisms (SNPs) in 77 of the patients and 150 population-based controls. Suicide attempters had reduced PIC and a decreased PIC/QUIN ratio in both CSF (P<0.001) and blood (P=0.001 and P<0.01, respectively). The reductions of PIC in CSF were sustained over 2 years after the suicide attempt based on repeated measures. The minor C allele of the ACMSD SNP rs2121337 was more prevalent in suicide attempters and associated with increased CSF QUIN. Taken together, our data suggest that increased QUIN levels may result from reduced activity of ACMSD in suicidal subjects. We conclude that measures of kynurenine metabolites can be explored as biomarkers of suicide risk, and that ACMSD is a potential therapeutic target in suicidal behavior.
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121
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Priya PK, Rajappa M, Kattimani S, Mohanraj P, Revathy G. Association of neurotrophins, inflammation and stress with suicide risk in young adults. Clin Chim Acta 2016; 457:41-5. [DOI: 10.1016/j.cca.2016.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 03/05/2016] [Accepted: 03/22/2016] [Indexed: 12/11/2022]
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Association of peripheral inflammation with body mass index and depressive relapse in bipolar disorder. Psychoneuroendocrinology 2016; 65:76-83. [PMID: 26731572 DOI: 10.1016/j.psyneuen.2015.12.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 12/14/2015] [Accepted: 12/14/2015] [Indexed: 01/21/2023]
Abstract
Bipolar I disorder (BD) is associated with increased inflammation, which is believed to be central to disease etiology and progression. However, BD patients also have high rates of obesity, itself an inflammatory condition, and the relative contributions of mood illness and obesity to inflammation are unknown. Moreover, the impact of inflammation on clinical illness course has not been well studied. The objectives of this analysis were therefore: (1) to determine if inflammation in BD is mood illness-related or secondary to elevated body mass index (BMI), and (2) to investigate the impact of inflammation on prospectively-ascertained relapse into depression and mania. We measured the serum levels of 7 inflammatory cytokines (TNF-α, γ-interferon, monocyte chemoattractant protein-1 [MCP-1], IL-1α, IL-2, IL-6, and IL-8) and 2 anti-inflammatory cytokines (IL-4 and IL-10) in 52 early-stage BD patients and 22 healthy subjects. In patients, a multivariate multiple regression model that controlled for psychotropic medications found that higher BMI, but not recent (past-6-month) mood episodes, predicted greater inflammatory cytokines (p=.05). Healthy subjects also had a BMI-related increase in inflammatory cytokines (p<.01), but it was counter-balanced by a compensatory increase in anti-inflammatory cytokines (p=.02), reducing their total inflammatory burden from higher BMI. In patients, linear regression showed that two inflammatory cytokines predicted depressive relapse in the 12 months after cytokine measurement: IL-1α (p<.01) and MCP-1 (p<.01). These results suggest that elevated BMI is a significant contributor to inflammation in BD, more so even than recent mood illness severity. They also point to inflammation as an important predictor of illness course, particularly depressive relapse.
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123
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Lin JE, Neylan TC, Epel E, O'Donovan A. Associations of childhood adversity and adulthood trauma with C-reactive protein: A cross-sectional population-based study. Brain Behav Immun 2016; 53:105-112. [PMID: 26616398 PMCID: PMC5189980 DOI: 10.1016/j.bbi.2015.11.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/19/2015] [Accepted: 11/21/2015] [Indexed: 12/12/2022] Open
Abstract
Mounting evidence highlights specific forms of psychological stress as risk factors for ill health. Particularly strong evidence indicates that childhood adversity and adulthood trauma exposure increase risk for physical and psychiatric disorders, and there is emerging evidence that inflammation may play a key role in these relationships. In a population-based sample from the Health and Retirement Study (n=11,198, mean age 69 ± 10), we examine whether childhood adversity, adulthood trauma, and the interaction between them are associated with elevated levels of the systemic inflammatory marker high sensitivity C-reactive protein (hsCRP). All models were adjusted for age, gender, race, education, and year of data collection, as well as other possible confounds in follow-up sensitivity analyses. In our sample, 67% of individuals had experienced at least one traumatic event during adulthood, and those with childhood adversity were almost three times as likely to have experienced trauma as an adult. Childhood adversities and adulthood traumas were independently associated with elevated levels of hsCRP (β=0.03, p=0.01 and β=0.05, p<0.001, respectively). Those who had experienced both types of stress had higher levels of hsCRP than those with adulthood trauma alone, Estimate=-0.06, 95% CI [-0.003, -0.12], p=0.04, but not compared to those with childhood adversity alone, Estimate=-0.06, 95% CI [0.03, -0.16], p=0.19. There was no interaction between childhood and adulthood trauma exposure. To our knowledge, this is the first study to examine adulthood trauma exposure and inflammation in a large population-based sample, and the first to explore the interaction of childhood adversity and adulthood trauma with inflammation. Our study demonstrates the prevalence of trauma-related inflammation in the general population and suggests that childhood adversity and adulthood trauma are independently associated with elevated inflammation.
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Affiliation(s)
- Joy E Lin
- School of Medicine, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, United States; San Francisco Veteran's Affairs Medical Center, 4150 Clement Street, San Francisco, CA 94121, United States.
| | - Thomas C Neylan
- Department of Psychiatry, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, United States; San Francisco Veteran's Affairs Medical Center, 4150 Clement Street, San Francisco, CA 94121, United States.
| | - Elissa Epel
- Department of Psychiatry, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, United States.
| | - Aoife O'Donovan
- Department of Psychiatry, University of California, San Francisco, 500 Parnassus Avenue, San Francisco, CA 94143, United States; San Francisco Veteran's Affairs Medical Center, 4150 Clement Street, San Francisco, CA 94121, United States.
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124
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Muneer A. Bipolar Disorder: Role of Inflammation and the Development of Disease Biomarkers. Psychiatry Investig 2016; 13:18-33. [PMID: 26766943 PMCID: PMC4701682 DOI: 10.4306/pi.2016.13.1.18] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 05/21/2015] [Accepted: 06/18/2015] [Indexed: 12/15/2022] Open
Abstract
Bipolar disorder is a severe and enduring psychiatric condition which in many cases starts during early adulthood and follows a relapsing and remitting course throughout life. In many patients the disease follows a progressive path with brief periods of inter-episode recovery, sub-threshold symptoms, treatment resistance and increasing functional impairment in the biopsychosocial domains. Knowledge about the neurobiology of bipolar disorder is increasing steadily and evidence from several lines of research implicates immuno-inflammatory mechanisms in the brain and periphery in the etiopathogenesis of this illness and its comorbidities. The main findings are an increase in the levels of proinflammatory cytokines during acute episodes with a decrease in neurotrophic support. Related to these factors are glial cell dysfunction, neuro-endocrine abnormalities and neurotransmitter aberrations which together cause plastic changes in the mood regulating areas of the brain and neuroprogression of the bipolar diathesis. Research in the above mentioned areas is providing an opportunity to discover novel biomarkers for the disease and the field is reaching a point where major breakthroughs can be expected in the not too distant future. It is hoped that with new discoveries fresh avenues will be found to better treat an otherwise recalcitrant disease.
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Affiliation(s)
- Ather Muneer
- Islamic International Medical College, Riphah International University, Rawalpindi, Pakistan
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125
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Ganança L, Oquendo MA, Tyrka AR, Cisneros-Trujillo S, Mann JJ, Sublette ME. The role of cytokines in the pathophysiology of suicidal behavior. Psychoneuroendocrinology 2016; 63:296-310. [PMID: 26546783 PMCID: PMC4910882 DOI: 10.1016/j.psyneuen.2015.10.008] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/18/2015] [Accepted: 10/13/2015] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Immune dysregulation has been implicated in depression and other psychiatric disorders. What is less clear is how immune dysregulation can affect risk of suicidal behavior. We reviewed the scientific literature concerning cytokines related to suicidal ideation, suicidal behavior and suicide, and surveyed clinical and neurobiological factors associated with cytokine levels that may modulate effects of inflammation on suicide risk. METHODS We searched PubMed, Embase, Scopus and PsycINFO for relevant studies published from 1980 through February, 2015. Papers were included if they were written in English and focused on cytokine measurements in patients with suicidal behaviors. RESULTS The literature search yielded 22 studies concerning cytokines and suicidal ideation, suicide attempts or suicide completion. The most consistent finding was elevated interleukin (IL)-6, found in 8 out of 14 studies, in CSF, blood, and postmortem brain. In one study, IL-6 in CSF was also found to be higher in violent than nonviolent attempters and to correlate with future suicide completion. Low plasma IL-2 was observed in 2 studies of suicide attempters, while divergent results were seen for tumor necrosis factor (TNF)-α, interferon (IFN)-γ, transforming growth factor (TGF)-β, IL-4, and soluble Il-2 receptors. CONCLUSIONS Given the complexity suggested by the heterogenous cytokine findings, putative mediators and moderators of inflammation on suicidal behavior merit further study. Elevated IL-6 was the most robust cytokine finding, associated with suicidal ideation and both nonfatal suicide attempts and suicides. Future studies should evaluate the predictive value of high IL-6, consider how this may alter brain function to impact suicidal behavior, and explore the potential beneficial effects of reducing IL-6 on suicide risk.
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Affiliation(s)
- Licínia Ganança
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, 10032 NY, USA,Department of Psychiatry, Columbia University, New York, 10032 NY, USA,Department of Psychiatry, School of Medicine, University of Lisbon, 1649-035 Lisbon, Portugal
| | - Maria A. Oquendo
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, 10032 NY, USA,Department of Psychiatry, Columbia University, New York, 10032 NY, USA
| | - Audrey R. Tyrka
- Laboratory for Clinical and Translational Neuroscience, Butler Hospital and Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, 02912 RI, USA
| | - Sebastian Cisneros-Trujillo
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, 10032 NY, USA,Department of Psychiatry, Columbia University, New York, 10032 NY, USA
| | - J. John Mann
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, 10032 NY, USA,Department of Psychiatry, Columbia University, New York, 10032 NY, USA,Department of Radiology, Columbia University, New York, 10032 NY, USA
| | - M. Elizabeth Sublette
- Molecular Imaging and Neuropathology Division, New York State Psychiatric Institute, New York, 10032 NY, USA,Department of Psychiatry, Columbia University, New York, 10032 NY, USA,Corresponding author: New York State Psychiatric Institute, 1051 Riverside Drive, Unit 42, NY, NY 10032. Tel: (646) 774-7514; Fax: (646) 774-7589
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126
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Barzilay R, Lobel T, Krivoy A, Shlosberg D, Weizman A, Katz N. Elevated C-reactive protein levels in schizophrenia inpatients is associated with aggressive behavior. Eur Psychiatry 2015; 31:8-12. [PMID: 26657596 DOI: 10.1016/j.eurpsy.2015.09.461] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND An association between inflammation and behavioral domains of mental disorders is of growing interest. Recent studies reported an association between aggression and inflammation. In this study, we investigated the association between aggressive behavior and inflammatory markers in schizophrenia inpatients. METHODS Adult schizophrenia inpatients without affective symptoms (n=213) were retrospectively identified and categorized according to their C-reactive protein measurement at admission as either elevated (CRP>1 mg/dL; n=57) or normal (CRP<1 mg/dL; n=156). The following indicators of aggression were compared: PANSS excitement component (PANSS-EC), restraints and suicidal behavior during hospitalization. Univariate comparisons between elevated and normal CRP levels were performed and multivariate analysis was conducted to control for relevant covariates. RESULTS CRP levels significantly correlated with other laboratory markers indicating increased inflammation including leukocyte count and neutrophil to lymphocyte ratio (r=0.387, P<0.0001 and r=0.356, P<0.0001) respectively. Inpatients with elevated C-reactive protein displayed increased aggressive behavior compared to patients with normal CRP levels (<1 mg/dL). This was manifested by higher rates of restraint during hospitalization (χ(2)=5.22, P=0.031) and increased PANSS-EC score (U=5410.5, P=0.012). Elevated CRP levels were not associated with suicidal behavior. Multivariate analysis revealed that higher PANSS-EC score was associated with elevated CRP after controlling for the covariates age, sex, BMI and smoking. CONCLUSION This study identified a potential biological correlate (inflammation) of a specific behavioral endophenotype (aggression) in schizophrenia inpatients.
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Affiliation(s)
- R Barzilay
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel; Neurosciences laboratory, Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel Aviv University, Israel.
| | - T Lobel
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel
| | - A Krivoy
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel
| | - D Shlosberg
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel
| | - A Weizman
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel
| | - N Katz
- Geha Mental Health Center, Sackler Faculty of Medicine, Tel Aviv University, 1 Helsinki St., 4910002 Petah-Tikva, Israel
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Courtet P, Jaussent I, Genty C, Dupuy AM, Guillaume S, Ducasse D, Olié E. Increased CRP levels may be a trait marker of suicidal attempt. Eur Neuropsychopharmacol 2015; 25:1824-31. [PMID: 26032768 DOI: 10.1016/j.euroneuro.2015.05.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Accepted: 05/11/2015] [Indexed: 01/06/2023]
Abstract
Suicide is a leading cause of death worldwide. Identifying biomarkers will help enhance our understanding of suicidal pathophysiology and improve its prevention. Therefore, we investigated CRP levels in 600 depressed inpatients: 520 patients had a lifetime history of suicide attempts and 80 patients did not have any history of suicide attempts. For all patients, we assessed socio-demographic features, lifetime Axis I DSM-IV diagnoses, depression intensity, suicidal ideation, characteristics of suicidal history, and history of childhood trauma. The day following admission, fasting blood tests yielded samples collected for the measurement of high sensitivity hs-CRP. CRP levels were associated with a history of suicide attempts. The risk of suicide attempts increased with higher levels of CRP in a dose-response way before and after adjustments for age, gender, chronic diseases, addiction and anxiety comorbidities, antidepressants use, smoking status and sexual abuse. Noteworthy, the association between CRP levels and history of suicide attempts remained significant after having excluded patients with chronic diseases. There was no significant difference in CRP levels between patients who attempted suicide more or less than a week before plasma sampling, and no significant difference in CRP levels was evidenced between high vs low suicidal ideation. In conclusion, this is the first study suggesting that CRP may be a trait marker for suicidal vulnerability by associating CRP levels and a lifetime history of suicide attempts in depressed inpatients. Therefore, determining the inflammatory marker profile of individuals exhibiting suicidal behaviors could be relevant for anticipating behaviors and refining new therapeutic opportunities.
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Affiliation(s)
- Ph Courtet
- CHU Montpellier, HôpitalLapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France
| | - I Jaussent
- Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France
| | - C Genty
- CHU Montpellier, HôpitalLapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France
| | - A M Dupuy
- Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; Department of Biochemistry, CHRU de Montpellier, Montpellier, France
| | - S Guillaume
- CHU Montpellier, HôpitalLapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France
| | - D Ducasse
- CHU Montpellier, HôpitalLapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France.
| | - E Olié
- CHU Montpellier, HôpitalLapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier,University of Montpellier, Montpellier, France; FondaMental Foundation, France
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128
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Cumulative meta-analysis of interleukins 6 and 1β, tumour necrosis factor α and C-reactive protein in patients with major depressive disorder. Brain Behav Immun 2015; 49:206-15. [PMID: 26065825 PMCID: PMC4566946 DOI: 10.1016/j.bbi.2015.06.001] [Citation(s) in RCA: 719] [Impact Index Per Article: 79.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 05/28/2015] [Accepted: 06/01/2015] [Indexed: 12/15/2022] Open
Abstract
Cumulative meta-analyses are used to evaluate the extent to which further studies are needed to confirm or refute a hypothesis. We used this approach to assess observational evidence on systemic inflammation in individuals with major depressive disorder. We identified 58 studies of four common inflammatory markers in a literature search of PubMed, Embase and PsychInfo databases in May 2014. Pooled data from the earliest eight studies already showed an association between interleukin-6 concentrations and major depression; 23 more recent studies confirmed this finding (d=0.54, p<0.0001). A significant association between C-reactive protein levels and major depression was noted after 14 studies and this did not change after addition of six more studies (d=0.47, p<0.0001). For these two inflammatory markers, there was moderate heterogeneity in study-specific estimates, subgroup differences were small, and publication bias appeared to be an unlikely explanation for the findings. Sensitivity analyses including only high-quality studies and subjects free of antidepressant medication further verified the associations. While there was a link between tumour necrosis factor-α levels and major depression (d=0.40, p=0.002), the cumulative effect remained uncertain due to the extensive heterogeneity in study-specific estimates and inconsistencies between subgroups. No evidence was found for the association between interleukin-1β levels and major depression (d=-0.05, p=0.86). In conclusion, this cumulative meta-analysis confirmed higher mean levels of interleukin-6 and C-reactive protein in patients with major depression compared to non-depressed controls. No consistent association between tumour necrosis factor-α, interleukin-1β and major depression was observed. Future studies should clarify the specific immune mechanisms involved as well as continue testing anti-inflammatory therapies in patients suffering from major depression.
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129
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Husain MI, Chaudhry IB, Rahman RR, Hamirani MM, Qurashi I, Khoso AB, Deakin JFW, Husain N, Young AH. Minocycline as an adjunct for treatment-resistant depressive symptoms: study protocol for a pilot randomised controlled trial. Trials 2015; 16:410. [PMID: 26374703 PMCID: PMC4570147 DOI: 10.1186/s13063-015-0933-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 08/28/2015] [Indexed: 12/28/2022] Open
Abstract
Background Depression is one of the leading causes of disability worldwide. A high proportion of patients do not respond to standard drug treatments. Recent evidence has suggested that anti-inflammatory treatment may have beneficial effects in major depression. Minocycline is a tetracycline antibiotic with good CNS penetration that exerts effects on multiple interacting symptoms implicated in the pathophysiology of mood disorders. Open-label studies have suggested that minocycline is effective as an adjunct drug in improving depressive symptoms. Methods/Design This is a multi-centre, 3-month, double-blind, placebo-controlled, pilot trial of minocycline added to treatment as usual for patients suffering from DSM-IV major depressive disorder. This will be a double-blind, randomised, controlled, two parallel-arm study with 20 participants in each arm, giving a total of 40 participants. There will be a screening visit, a randomization visit and four follow-up visits. Clinical assessments using the Hamilton Depression Rating Scale (HAM-D), Clinical Global Impression scale (CGI), Patient Health Questionnaire-9 (PHQ −9) and the Generalised Anxiety Disorder scale (GAD-7) will be carried out at every visit. Side effects checklists will also be undertaken at each visit. Biomarkers (inflammatory cytokines and CRP) will be measured at baseline and at the end of the treatment phase. Minocycline will be started at 100 mg once daily (OD) and will be increased to 200 mg at two weeks. Discussion Anti-inflammatory treatments have been shown to have some beneficial effects in the treatment of major depressive disorder. The aim of this pilot randomised controlled trial is to establish the degree of improvement in depressive symptoms with the addition of minocycline to treatment as usual. Trial registration ClinicalTrials.gov NCT02263872 registered 10 October 2014.
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Affiliation(s)
- Muhammad I Husain
- Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London, SE5 8AF, UK.
| | | | - Raza R Rahman
- Dow Institute of Health Sciences, Karachi, Pakistan.
| | - Munir M Hamirani
- Department of Psychiatry, Abbasi Shaheed Hospital, Karachi, Pakistan.
| | - Inti Qurashi
- Ashworth Research Centre, Mersey Care NHS Trust, Parkbourn, Maghull, L51 1HW, UK.
| | - Ameer B Khoso
- Pakistan Institute of Learning and Living, Karachi, Pakistan.
| | | | - Nusrat Husain
- University of Manchester, Oxford Road, Manchester, UK.
| | - Allan H Young
- Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London, SE5 8AF, UK.
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130
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Brundin L, Erhardt S, Bryleva EY, Achtyes ED, Postolache TT. The role of inflammation in suicidal behaviour. Acta Psychiatr Scand 2015; 132:192-203. [PMID: 26256862 PMCID: PMC4531386 DOI: 10.1111/acps.12458] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Over the past decade, clinical data have accumulated showing that inflammation might contribute to the pathophysiology of suicide. To evaluate the associations and to identify the support for pathways linking inflammatory processes with suicidal behaviour, a comprehensive review of the literature was undertaken. METHOD The search terms 'cytokine', 'risk factors', 'kynurenine', 'asthma', 'allergy', 'autoimmunity', 'traumatic brain injury', 'infection' along with the terms 'inflammation' and 'suicide' were entered into PubMed, and a thorough analysis of the publications and their reference lists was performed. RESULTS The effects of inflammation on mood and behaviour could partially be mediated by kynurenine pathway metabolites, modulating neuroinflammation and glutamate neurotransmission. At the same time, the triggers of the inflammatory changes documented in suicidal patients may be attributed to diverse mechanisms such as autoimmunity, neurotropic pathogens, stress or traumatic brain injury. CONCLUSION Targeting the inflammatory system might provide novel therapeutic approaches as well as potential biomarkers to identify patients at increased risk. For the goal of improved detection and treatment of suicidal individuals to be achieved, we need to develop a detailed understanding of the origin, mechanisms and outcomes of inflammation in suicidal behaviour.
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Affiliation(s)
- L. Brundin
- Division of Psychiatry and Behavioral Medicine College of Human Medicine Michigan State University Grand Rapids MI USA
- Laboratory of Behavioral Medicine Center for Neurodegenerative Science Van Andel Research Institute Grand Rapids MI USA
| | - S. Erhardt
- Department of Physiology & Pharmacology Karolinska Institute Stockholm Sweden
| | - E. Y. Bryleva
- Laboratory of Behavioral Medicine Center for Neurodegenerative Science Van Andel Research Institute Grand Rapids MI USA
| | - E. D. Achtyes
- Division of Psychiatry and Behavioral Medicine College of Human Medicine Michigan State University Grand Rapids MI USA
| | - T. T. Postolache
- Department of Psychiatry University of Maryland School of Medicine Baltimore MD USA
- Veterans Integrated Service Network 19 Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC) Denver CO USA
- Veterans Integrated Service Network 5 MIRECC Baltimore MD USA
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131
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Verduijn J, Milaneschi Y, Schoevers RA, van Hemert AM, Beekman ATF, Penninx BWJH. Pathophysiology of major depressive disorder: mechanisms involved in etiology are not associated with clinical progression. Transl Psychiatry 2015; 5:e649. [PMID: 26418277 PMCID: PMC5545638 DOI: 10.1038/tp.2015.137] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 07/28/2015] [Indexed: 12/15/2022] Open
Abstract
Meta-analyses support the involvement of different pathophysiological mechanisms (inflammation, hypothalamic-pituitary (HPA)-axis, neurotrophic growth and vitamin D) in major depressive disorder (MDD). However, it remains unknown whether dysregulations in these mechanisms are more pronounced when MDD progresses toward multiple episodes and/or chronicity. We hypothesized that four central pathophysiological mechanisms of MDD are not only involved in etiology, but also associated with clinical disease progression. Therefore, we expected to find increasingly more dysregulation across consecutive stages of MDD progression. The sample from the Netherlands Study of Depression and Anxiety (18-65 years) consisted of 230 controls and 2333 participants assigned to a clinical staging model categorizing MDD in eight stages (0, 1A, 1B, 2, 3A, 3B, 3C and 4), from familial risk at MDD (stage 0) to chronic MDD (stage 4). Analyses of covariance examined whether pathophysiological mechanism markers (interleukin (IL)-6, C-reactive protein (CRP), cortisol, brain-derived neurotrophic factor and vitamin D) showed a linear trend across controls, those at risk for MDD (stages 0, 1A and 1B), and those with full-threshold MDD (stages 2, 3A, 3B, 3C and 4). Subsequently, pathophysiological differences across separate stages within those at risk and with full-threshold MDD were examined. A linear increase of inflammatory markers (CRP P=0.026; IL-6 P=0.090), cortisol (P=0.025) and decrease of vitamin D (P<0.001) was found across the entire sample (for example, from controls to those at risk and those with full-threshold MDD). Significant trends of dysregulations across stages were present in analyses focusing on at-risk individuals (IL-6 P=0.050; cortisol P=0.008; vitamin D P<0.001); however, no linear trends were found in dysregulations for any of the mechanisms across more progressive stages of full-threshold MDD. Our results support that the examined pathophysiological mechanisms are involved in MDD's etiology. These same mechanisms, however, are less important in clinical progression from first to later MDD episodes and toward chronicity.
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Affiliation(s)
- J Verduijn
- Department of Psychiatry, EMGO Institute for Health and Care Research and Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands,Department of Psychiatry, EMGO Institute for Health and Care Research and Neuroscience Campus Amsterdam, VU University Medical Center, A.J. Ernststraat 1187, 1081 HL, Amsterdam, The Netherlands. E-mail:
| | - Y Milaneschi
- Department of Psychiatry, EMGO Institute for Health and Care Research and Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - R A Schoevers
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A M van Hemert
- Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
| | - A T F Beekman
- Department of Psychiatry, EMGO Institute for Health and Care Research and Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - B W J H Penninx
- Department of Psychiatry, EMGO Institute for Health and Care Research and Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
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Ducasse D, Jaussent I, Guillaume S, Azorin JM, Bellivier F, Belzeaux R, Bougerol T, Etain B, Gard S, Henry C, Kahn JP, Leboyer M, Loftus J, Passerieux C, Courtet PH, Olié E. Increased risk of suicide attempt in bipolar patients with severe tobacco dependence. J Affect Disord 2015; 183:113-8. [PMID: 26001671 DOI: 10.1016/j.jad.2015.04.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/22/2015] [Accepted: 04/22/2015] [Indexed: 01/02/2023]
Abstract
BACKGROUND The aim of our study was to investigate, in bipolar patients, the association between tobacco status (use and dependence) and history of suicide attempt, and to assess the possible role of inflammation as a missing link in the association between smoking status and history of suicide attempt. METHODS A total of 453 adult bipolar out-patients recruited in the French FondaMental Advanced Centres of Expertise for Bipolar Disorder were divided into two subgroups: 274 patients without past history of suicide attempt (non-SA), and 179 patients with a past history of suicide attempt (SA). Tobacco use and dependence, psychiatric and somatic comorbidities, history of childhood abuse, family history of suicide were assessed. Fasting blood tests yielded samples collected for the measurement of high sensitivity (hs-)CRP. RESULTS The risk of suicide attempt increased with smoking dependence. Notably, bipolar patients with a history of suicide attempt were three times more likely to have severe tobacco dependence, independently of confounding factors. However, we failed to find arguments promoting the hypothesis of inflammatory markers (through hs-CRP measure) in the link between tobacco dependence and suicidal behavior. CONCLUSIONS We found a significant association between severe tobacco dependence and history of suicide attempt, but not with level of CRP, independently of confusing factors. Longitudinal studies taken into account all these potential confusing factors are needed to confirm our results.
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Affiliation(s)
- D Ducasse
- CHU Montpellier, Hôpital Lapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier, University of Montpellier, Montpellier, France; FondaMental Foundation, Créteil, France.
| | - I Jaussent
- Inserm, U1061 Montpellier, University of Montpellier, Montpellier, France
| | - S Guillaume
- CHU Montpellier, Hôpital Lapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier, University of Montpellier, Montpellier, France; FondaMental Foundation, Créteil, France
| | - J M Azorin
- FondaMental Foundation, Créteil, France; AP HM, Psychiatric Pole, Sainte Marguerite, Marseille, France
| | - F Bellivier
- FondaMental Foundation, Créteil, France; Hospital Saint-Louis - Lariboisière - Fernand Widal, AP-HP, Paris, France
| | - R Belzeaux
- FondaMental Foundation, Créteil, France; AP HM, Psychiatric Pole, Sainte Marguerite, Marseille, France
| | - T Bougerol
- FondaMental Foundation, Créteil, France; Academic Hospital of Grenoble, Grenoble, France
| | - B Etain
- FondaMental Foundation, Créteil, France; Université Paris-Est, Hopital Chenevier and AP-HP, Créteil, France
| | - S Gard
- FondaMental Foundation, Créteil, France; Charles Perrens Hospital, Bordeaux, France
| | - C Henry
- FondaMental Foundation, Créteil, France; Université Paris-Est, Hopital Chenevier and AP-HP, Créteil, France
| | - J P Kahn
- FondaMental Foundation, Créteil, France; Brabois Hospital, Academic Hospital of Nancy, Vandoeuvre Les Nancy, France
| | - M Leboyer
- FondaMental Foundation, Créteil, France; Université Paris-Est, Hopital Chenevier and AP-HP, Créteil, France
| | - J Loftus
- FondaMental Foundation, Créteil, France; Department of Psychiatry, Princesse-Grace Hospital, Monaco
| | - C Passerieux
- FondaMental Foundation, Créteil, France; Academic Hospital of Versailles, Le Chesnay, France
| | - P H Courtet
- CHU Montpellier, Hôpital Lapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier, University of Montpellier, Montpellier, France; FondaMental Foundation, Créteil, France
| | - E Olié
- CHU Montpellier, Hôpital Lapeyronie, Department of Emergency Psychiatry and Post Acute Care, CHRU Montpellier, France; Inserm, U1061 Montpellier, University of Montpellier, Montpellier, France; FondaMental Foundation, Créteil, France
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Black C, Miller BJ. Meta-Analysis of Cytokines and Chemokines in Suicidality: Distinguishing Suicidal Versus Nonsuicidal Patients. Biol Psychiatry 2015; 78:28-37. [PMID: 25541493 DOI: 10.1016/j.biopsych.2014.10.014] [Citation(s) in RCA: 238] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Major psychiatric disorders are associated with inflammation. Aberrant cytokine and chemokine levels have been associated with psychiatric disorders and suicidal behavior. We performed a meta-analysis of cytokine and chemokine levels in patients with versus without suicidality and patients with suicidality versus healthy controls. METHODS We identified articles by searching MEDLINE, PsycINFO, and Thomson Reuters Web of Knowledge databases and the reference lists of identified studies. RESULTS Study inclusion criteria were met by 18 studies comprising 583 patients with suicidality, 315 patients without suicidality, and 845 healthy control subjects. Levels of interleukin (IL)-1β and IL-6 were significantly increased in blood and postmortem brain samples of patients with suicidality compared with both patients without suicidality and healthy control subjects (p < .05 for each). In vitro IL-2 production by peripheral blood mononuclear cells was significantly decreased in patients with suicidality compared with both patients without suicidality and healthy controls (p < .01 for each). Cerebrospinal fluid levels of IL-8 were significantly decreased in patients with suicidality versus control subjects (p < .05). CONCLUSIONS We found evidence for aberrant cytokine levels in blood, cerebrospinal fluid, and postmortem brain samples of patients with suicidality. Levels of IL-1β and IL-6 were most robustly associated with suicidality, and these cytokines may help distinguish suicidal from nonsuicidal patients. Rigorously designed longitudinal studies are needed to evaluate these associations further.
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Affiliation(s)
- Carmen Black
- Medical College of Georgia, Georgia Regents University, Augusta, Georgia
| | - Brian J Miller
- Department of Psychiatry and Health Behavior, Georgia Regents University, Augusta, Georgia..
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Hultcrantz M, Wilkes SR, Kristinsson SY, Andersson TML, Derolf ÅR, Eloranta S, Samuelsson J, Landgren O, Dickman PW, Lambert PC, Björkholm M. Risk and Cause of Death in Patients Diagnosed With Myeloproliferative Neoplasms in Sweden Between 1973 and 2005: A Population-Based Study. J Clin Oncol 2015; 33:2288-95. [PMID: 26033810 DOI: 10.1200/jco.2014.57.6652] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
PURPOSE Myeloproliferative neoplasms (MPNs) are associated with a shortened life expectancy. We assessed causes of death in patients with MPN and matched controls using both relative risks and absolute probabilities in the presence of competing risks. PATIENTS AND METHODS From Swedish registries, we identified 9,285 patients with MPN and 35,769 matched controls. A flexible parametric model was used to estimate cause-specific hazard ratios (HRs) of death and cumulative incidence functions, each with 95% CIs. RESULTS In patients with MPN, the HRs of death from hematologic malignancies and infections were 92.8 (95% CI, 70.0 to 123.1) and 2.7 (95% CI, 2.4 to 3.1), respectively. In patients age 70 to 79 years at diagnosis (the largest patient group), the HRs of death from cardiovascular and cerebrovascular disease were 1.5 (95% CI, 1.4 to 1.7) and 1.5 (95% CI, 1.3 to 1.8), respectively; all were statistically significantly elevated compared with those of controls. In the same age group, no difference was observed in the 10-year probability of death resulting from cardiovascular disease in patients with MPN versus controls (16.8% v 15.2%) or cerebrovascular disease (5.6% v 5.2%). In patients age 50 to 59 years at diagnosis, the 10-year probability of death resulting from cardiovascular and cerebrovascular disease was elevated, 4.2% versus 2.1% and 1.9% versus 0.4%, respectively. Survival in patients with MPN increased over time, mainly because of decreased probabilities of dying as a result of hematologic malignancies, infections, and, in young patients, cardiovascular disease. CONCLUSION Patients with MPN had an overall higher mortality rate than that of matched controls, primarily because of hematologic malignancy, infections, and vascular events in younger patients. Evidently, there is still a need for effective disease-modifying agents to improve patient outcomes.
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Affiliation(s)
- Malin Hultcrantz
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY.
| | - Sally R Wilkes
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sigurdur Y Kristinsson
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Therese M-L Andersson
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Åsa R Derolf
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sandra Eloranta
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jan Samuelsson
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ola Landgren
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Paul W Dickman
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Paul C Lambert
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Magnus Björkholm
- Malin Hultcrantz, Sigurdur Y. Kristinsson, Åsa R. Derolf, and Magnus Björkholm, Karolinska University Hospital; Malin Hultcrantz, Sigurdur Y. Kristinsson, Therese M.-L. Andersson, Åsa R. Derolf, Sandra Eloranta, Paul W. Dickman, Paul C. Lambert, and Magnus Björkholm, Karolinska Institutet; Jan Samuelsson, South Hospital, Stockholm, Sweden; Sally R. Wilkes, University of Nottingham, Nottingham; Paul C. Lambert, University of Leicester, Leicester, United Kingdom; Sigurdur Y. Kristinsson, University of Iceland and Landspitali National University Hospital, Reykjavik, Iceland; and Ola Landgren, Memorial Sloan Kettering Cancer Center, New York, NY
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Ducasse D, Olié E, Guillaume S, Artéro S, Courtet P. A meta-analysis of cytokines in suicidal behavior. Brain Behav Immun 2015; 46:203-11. [PMID: 25678163 DOI: 10.1016/j.bbi.2015.02.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/27/2015] [Accepted: 02/01/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND We conducted the first meta-analysis of studies comparing the plasma and CSF concentrations of cytokines in suicidal patients vs. non-suicidal patients or healthy controls. METHODS We searched Medline, Web of Science, and PsycINFO from 1965 to November 2014 for relevant studies. Manual searches of references and unpublished data were also included. Suicidal patients included severe suicide ideators and suicide attempters. RESULTS Eleven articles were available for the meta-analysis, for a total sample size of 494 suicidal patients, 497 non-suicidal patients and 398 healthy controls. Levels of 6 independent plasma cytokines (IL2, IL6, TNFalpha, IFNgamma, IL4, TGFbeta) were meta-analyzed for plasma studies comparing suicidal vs. both controls. IL8 level was meta-analyzed for cerebrospinal fluid studies comparing suicidal patients with healthy controls. We reported with medium effect size, that suicidal patients had: (1) lower IL2 plasma levels than both non-suicidal patients and healthy controls (medium effect size); (2) lower IL4 and higher TGFbeta plasma levels than healthy controls. CONCLUSION Our results promote the hypothesis of altered inflammatory markers in suicidal patients, for both pro-inflammatory (IL2) and anti-inflammatory (IL4 and TGFbeta) cytokines.
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Affiliation(s)
- Déborah Ducasse
- Department of Psychiatric Emergency & Acute Crisis, Lapeyronie Hospital, CHU Montpellier, Montpellier, France; University of Montpellier UM1, Montpellier, France; INSERM U1061, Montpellier, France; Fondamental Foundation, France.
| | - Emilie Olié
- Department of Psychiatric Emergency & Acute Crisis, Lapeyronie Hospital, CHU Montpellier, Montpellier, France; University of Montpellier UM1, Montpellier, France; INSERM U1061, Montpellier, France; Fondamental Foundation, France
| | - Sébastien Guillaume
- Department of Psychiatric Emergency & Acute Crisis, Lapeyronie Hospital, CHU Montpellier, Montpellier, France; University of Montpellier UM1, Montpellier, France; INSERM U1061, Montpellier, France; Fondamental Foundation, France
| | | | - Philippe Courtet
- Department of Psychiatric Emergency & Acute Crisis, Lapeyronie Hospital, CHU Montpellier, Montpellier, France; University of Montpellier UM1, Montpellier, France; INSERM U1061, Montpellier, France; Fondamental Foundation, France
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Hiles SA, Baker AL, de Malmanche T, McEvoy M, Boyle M, Attia J. Unhealthy lifestyle may increase later depression via inflammation in older women but not men. J Psychiatr Res 2015; 63:65-74. [PMID: 25795094 DOI: 10.1016/j.jpsychires.2015.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/15/2015] [Accepted: 02/16/2015] [Indexed: 12/30/2022]
Abstract
Depression and inflammatory markers have a reliable cross-sectional association although less is known about the prospective relationship. The current study investigated whether pro-inflammatory markers are prospectively associated with depression, and whether indicators of unhealthy lifestyle, physical health and psychosocial functioning may drive this association. Participants were drawn from the Hunter Community Study, a community-dwelling cohort of individuals aged 55-85 years (N = 1410). Participants completed baseline physiological assessment, health-related questionnaires, and blood sampling for the analysis of inflammatory markers, C-reactive protein (CRP) and interleukin (IL)-6. Participants completed the same depressive symptom questionnaire again after 3.5-5.5 years. Depression outcomes at follow-up were analysed dichotomously using established scale cut-off scores and continuously as a "residual score", representing the variation in follow-up depressive symptoms not explained by baseline symptoms and age. Analyses were conducted on males and females separately. At baseline, indicators of unhealthy lifestyle, physical health and psychosocial functioning were associated with depressive symptoms and inflammatory markers. For males, there were no relationships between inflammatory markers and follow-up depression outcomes. In females, IL-6 was significantly associated with depression outcomes in univariate, but not multivariate analyses. However, IL-6 significantly mediated the association between the predictors of waist-to-hip ratio, smoking and psychological coping at baseline, and follow-up depression outcomes. The results support the inflammatory hypothesis of depression, although females may be more vulnerable to effects. The findings raise the possibility that unhealthy lifestyle and psychosocial stress may drive inflammation and subsequent depressive symptoms.
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Affiliation(s)
- Sarah A Hiles
- Priority Research Centre for Translational Neuroscience and Mental Health, Faculty of Health, University of Newcastle, New South Wales, Australia.
| | - Amanda L Baker
- Priority Research Centre for Translational Neuroscience and Mental Health, Faculty of Health, University of Newcastle, New South Wales, Australia
| | - Theo de Malmanche
- Immunology, Hunter Area Pathology Service, John Hunter Hospital, New South Wales, Australia
| | - Mark McEvoy
- Centre for Clinical Epidemiology and Biostatistics, Faculty of Health, University of Newcastle, New South Wales, Australia; Hunter Medical Research Institute, John Hunter Hospital, New South Wales, Australia
| | - Michael Boyle
- Immunology and Infectious Diseases Unit, Medical and Interventional Service, John Hunter Hospital, New South Wales, Australia
| | - John Attia
- Centre for Clinical Epidemiology and Biostatistics, Faculty of Health, University of Newcastle, New South Wales, Australia; Hunter Medical Research Institute, John Hunter Hospital, New South Wales, Australia
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Miná VAL, Lacerda-Pinheiro SF, Maia LC, Pinheiro RFF, Meireles CB, de Souza SIR, Reis AOA, Bianco B, Rolim MLN. The influence of inflammatory cytokines in physiopathology of suicidal behavior. J Affect Disord 2015; 172:219-30. [PMID: 25451421 DOI: 10.1016/j.jad.2014.09.057] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 09/30/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Based on the urgent need for reliable biomarkers in relation to suicide risk both for more accurate prediction as well as for new therapeutic opportunities, several researchers have been studied evidences of the potential participation of inflammatory processes in the brain, in particular cytokines, in suicide. The purpose of this review was to analyze the associations between inflammation markers and suicide. METHODS To achieve this goal, a systematic review of literature was conducted via electronic database Scopus using the Medical Subject Headings (MeSH) terms: "cytokines", "suicide" and "inflammation". Through this search it was found 54 articles. After analyzing them 15 met the eligibility criteria and were included in the final sample. RESULTS One of the most mentioned inflammatory markers was Interferon-α (IFN-α), a pro-inflammatory cytokine which has been shown to increase serum concentrations of pro-inflammatory cytokines such as interleukin (IL)-1, IL-6, tumor necrosis factor-a (TNF- α) and IFN-ϒ, which are factors increased suicide victims and attempters. In this line, IL-6 is not only found to be elevated in the cerebrospinal fluid of suicide attempters, even its levels in the peripheral blood have been proposed as a biological suicide marker. Another study stated that increased levels of IL-4 and IL-13 transcription in the orbitofrontal cortex of suicides suggest that these cytokines may affect neurobehavioral processes relevant to suicide. LIMITATIONS A lack of studies and great amount of cross-sectional studies. CONCLUSION Inflammation may play an important role in the pathophysiology of suicide, especially, levels of some specific inflammatory cytokines.
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Affiliation(s)
| | | | - L C Maia
- Federal University of Cariri, Brazil
| | | | | | - S I R de Souza
- Pos-graduation Program in Health Sciences, Faculty of Medicine of ABC, Brazil
| | - A O A Reis
- Pos-graduation Program in Public Health, University of São Paulo, Brazil
| | - B Bianco
- Pos-graduation Program in Health Sciences, Faculty of Medicine of ABC, Brazil
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Fonseka TM, McIntyre RS, Soczynska JK, Kennedy SH. Novel investigational drugs targeting IL-6 signaling for the treatment of depression. Expert Opin Investig Drugs 2015; 24:459-75. [PMID: 25585966 DOI: 10.1517/13543784.2014.998334] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Elevated levels of IL-6 have been implicated in the pathophysiology and treatment of major depressive disorder (MDD). Convergent evidence suggests that IL-6 primarily mediates proinflammatory functions via the soluble IL-6 receptor/trans-signaling, and anti-inflammatory functions via a transmembrane receptor (IL-6R). A targeted approach to selectively inhibit IL-6 trans-signaling may offer putative antidepressant effects. AREAS COVERED This review addresses three primary domains. The first focuses on the biological role of IL-6 within inflammation and its signal transduction pathways. The second addresses the potential contributions of IL-6 to the pathophysiology of MDD, and the mechanisms that may mediate these effects. Finally, the article outlines the therapeutic benefits of incorporating anti-inflammatory properties into the pharmacological treatment of MDD, and proposes inhibition of IL-6 signaling as a viable treatment strategy. EXPERT OPINION To improve drug development for the treatment of MDD, there is a critical need to identify promising targets. Target identification will require guidance from a strategic framework such as The Research Domain Criteria, and convincing evidence relating known targets to brain function under both physiological and pathological conditions. Although current evidence provides rationale for administering anti-IL-6 treatments in MDD, further studies confirming safety, target affinity and therapeutic benefits are warranted.
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Affiliation(s)
- Trehani M Fonseka
- University of Toronto, University Health Network, Department of Psychiatry , 200 Elizabeth Street, 8-EN-238, Toronto, M5G 2C4, ON , Canada +1 416 340 3888 ; +1 416 340 4198 ;
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Bortolato B, Carvalho AF, Soczynska JK, Perini GI, McIntyre RS. The Involvement of TNF-α in Cognitive Dysfunction Associated with Major Depressive Disorder: An Opportunity for Domain Specific Treatments. Curr Neuropharmacol 2015; 13:558-76. [PMID: 26467407 PMCID: PMC4761629 DOI: 10.2174/1570159x13666150630171433] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/05/2014] [Accepted: 12/08/2014] [Indexed: 12/31/2022] Open
Abstract
Major depressive disorder is a highly prevalent, chronic and recurring disorder, associated with substantial impairment in cognitive and interpersonal functions. Accumulating evidence suggests that inflammatory processes play an important role in the etio-pathogenesis, phenomenology, comorbidity and treatment of MDD. Suboptimal remission rates and the persistence of cognitive deficits contribute to functional impairment in MDD inviting the need for the development of mechanistically novel and domain specific treatment approaches. The MEDLINE/ Pubmed database was searched from inception to February, 9th, 2014 with combinations of the following search terms: 'TNF-alpha', 'depression', 'infliximab', 'etanercept', 'adalimumab', 'golimumab' and 'certolizumab'. Preclinical and clinical evidence linking TNF-α to MDD pathophysiology were reviewed as well as the current status of TNF-α modulators as novel agents for the treatment of MDD. Experimental models and clinical studies provide encouraging preliminary evidence for the efficacy of TNF- α antagonists in mitigating depressive symptoms and improving cognitive deficits. Further studies are warranted to confirm these data in larger randomized controlled trials in primary psychiatric populations. Translational research provides a promising perspective that may aid the development and/or repurposing of mechanism-based treatments for depressive symptoms and cognitive impairment in MDD.
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Affiliation(s)
| | - Andre F. Carvalho
- Translational Psychiatry Research Group, Department of Clinical Medicine, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Joanna K. Soczynska
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
- Institute of Medical Science, University of Toronto, Canada
| | | | - Roger S. McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Canada
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O’Donovan A, Chao LL, Paulson J, Samuelson KW, Shigenaga JK, Grunfeld C, Weiner MW, Neylan TC. Altered inflammatory activity associated with reduced hippocampal volume and more severe posttraumatic stress symptoms in Gulf War veterans. Psychoneuroendocrinology 2015; 51:557-66. [PMID: 25465168 PMCID: PMC4374733 DOI: 10.1016/j.psyneuen.2014.11.010] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/20/2014] [Accepted: 11/12/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Inflammation may reduce hippocampal volume by blocking neurogenesis and promoting neurodegeneration. Posttraumatic stress disorder (PTSD) has been linked with both elevated inflammation and reduced hippocampal volume. However, few studies have examined associations between inflammatory markers and hippocampal volume, and none have examined these associations in the context of PTSD. METHODS We measured levels of the inflammatory markers interleukin-6 (IL-6) and soluble receptor II for tumor necrosis factor (sTNF-RII) as well as hippocampal volume in 246 Gulf War veterans with and without current and past PTSD as assessed with the Clinician Administered PTSD Scale (CAPS). Enzyme-linked immunosorbent assays were used to measure inflammatory markers, and 1.5Tesla magnetic resonance imaging (MRI) and Freesurfer version 4.5 were used to quantify hippocampal volume. Hierarchical linear regression and analysis of covariance models were used to examine if hippocampal volume and PTSD status would be associated with elevated levels of IL-6 and sTNF-RII. RESULTS Increased sTNF-RII, but not IL-6, was significantly associated with reduced hippocampal volume (β=-0.14, p=0.01). The relationship between sTNF-RII and hippocampal volume was independent of potential confounds and covariates, including PTSD status. Although we observed no PTSD diagnosis-related differences in either IL-6 or sTNF-RII, higher PTSD severity was associated with significantly increased sTNF-RII (β=0.24, p=0.04) and reduced IL-6 levels (β=-0.24, p=0.04). CONCLUSIONS Our results indicate that specific inflammatory proteins may be associated with brain structure and function as indexed by hippocampal volume and PTSD symptoms.
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Affiliation(s)
- Aoife O’Donovan
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
| | - Linda L. Chao
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
| | - Jennifer Paulson
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA,California School of Professional Psychology at Alliant International University
| | - Kristin W. Samuelson
- San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA,California School of Professional Psychology at Alliant International University
| | - Judy K. Shigenaga
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
| | - Carl Grunfeld
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
| | - Mike W. Weiner
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
| | - Thomas C. Neylan
- University of California, San Francisco, CA, USA,San Francisco Veteran’s Affairs Medical Center and Northern California Institute for Research and Education, San Francisco, CA, USA
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141
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Suicidal patients are deficient in vitamin D, associated with a pro-inflammatory status in the blood. Psychoneuroendocrinology 2014; 50:210-9. [PMID: 25240206 DOI: 10.1016/j.psyneuen.2014.08.016] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/20/2014] [Accepted: 08/25/2014] [Indexed: 11/23/2022]
Abstract
BACKGROUND Low levels of vitamin D may play a role in psychiatric disorders, as cross-sectional studies show an association between vitamin D deficiency and depression, schizophrenia and psychotic symptoms. The underlying mechanisms are not well understood, although vitamin D is known to influence the immune system to promote a T helper (Th)-2 phenotype. At the same time, increased inflammation might be of importance in the pathophysiology of depression and suicide. We therefore hypothesized that suicidal patients would be deficient in vitamin D, which could be responsible for the inflammatory changes observed in these patients. METHODS We compared vitamin D levels in suicide attempters (n=59), non-suicidal depressed patients (n=17) and healthy controls (n=14). Subjects were diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders, 4th edition, and went through a structured interview by a specialist in psychiatry. 25(OH)D2 and 25(OH)D3 were measured in plasma using liquid-chromatography-mass-spectrometry (LC-MS). We further explored vitamin D's association with plasma IL-1β, IL-6 and TNF-α. RESULTS Suicide attempters had significantly lower mean levels of vitamin D than depressed non-suicidal patients and healthy controls. 58 percent of the suicide attempters were vitamin D deficient according to clinical standard. Moreover, there was a significant negative association between vitamin D and pro-inflammatory cytokines in the psychiatric patients. Low vitamin D levels were associated with higher levels of the inflammatory cytokines IL-6 and IL-1β in the blood. CONCLUSION The suicide attempters in our study were deficient in vitamin D. Our data also suggest that vitamin D deficiency could be a contributing factor to the elevated pro-inflammatory cytokines previously reported in suicidal patients. We propose that routine clinical testing of vitamin D levels could be beneficial in patients with suicidal symptoms, with subsequent supplementation in patients found to be deficient.
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142
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Young JJ, Bruno D, Pomara N. A review of the relationship between proinflammatory cytokines and major depressive disorder. J Affect Disord 2014; 169:15-20. [PMID: 25128861 DOI: 10.1016/j.jad.2014.07.032] [Citation(s) in RCA: 279] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 07/10/2014] [Accepted: 07/22/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Determining etiological factors and reviewing advances in diagnostic modalities sensitive and specific to Major Depressive Disorder (MDD) is of importance in its evaluation and treatment. The inflammatory hypothesis is one of the most prevalent topics concerning MDD and may provide insight into the pathogenesis of depression, development of biomarkers, and ultimately production of more effective depression therapies. METHOD We reviewed several studies to evaluate contemporary concepts concerning proinflammatory cytokines and their relationship to various depressive disorders, the use of anti-inflammatory therapies in MDD treatment, and the application of neuroimaging in conjunction with cytokine profiles from both plasma and CSF as possible diagnostic tools. RESULTS Proinflammatory cytokines in both plasma and CSF have been found to influence the progression and severity of depressive disorders in different populations. Studies have shown elevated serum levels of IL-1, IL-6, TNF-α, CRP, and MCP-1 in depressed patients, but have presented mixed results with IL-8 serum levels, and with IL-6 and MCP-1 CSF levels. Anti-inflammatory treatment of MDD may have adjuvant properties with current depression medications. MRI and NIRS neuroimaging confirm neurological abnormalities in the presence of elevated proinflammatory cytokines in depressed or stressed patients. LIMITATIONS Heterogeneity of MDD and limited CSF cytokine research complicate the study of MDD pathogenesis. CONCLUSION There is significant evidence that inflammatory processes influence the development and progression of MDD. Future studies with larger arrays of cytokine profiles aided by neuroimaging may provide more sensitive and specific modes of diagnostics in determining MDD etiology and provide guidance in individual therapies.
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Affiliation(s)
- Juan Joseph Young
- Geriatric Psychiatry Division, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, USA
| | - Davide Bruno
- Department of Psychology, Liverpool Hope University, Liverpool, UK
| | - Nunzio Pomara
- Geriatric Psychiatry Division, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, USA; Langone Medical Center, New York University, New York, NY, USA.
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143
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Juengst SB, Kumar RG, Arenth PM, Wagner AK. Exploratory associations with tumor necrosis factor-α, disinhibition and suicidal endorsement after traumatic brain injury. Brain Behav Immun 2014; 41:134-43. [PMID: 24928066 DOI: 10.1016/j.bbi.2014.05.020] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/01/2014] [Accepted: 05/08/2014] [Indexed: 12/22/2022] Open
Abstract
PURPOSE To examine the relationship of Tumor Necrosis Factor (TNF)-α to disinhibition and suicidal endorsement after traumatic brain injury (TBI). PARTICIPANTS Adults with moderate to severe TBI (acute serum levels: n=48, n=543 samples; acute CSF levels: n=37, n=389 samples; chronic serum levels: n=48, n=326 samples). MAIN MEASURES TNFα levels (CSF, Serum) from time of injury to 12 months post-injury; Frontal Systems Behavior Scale - Disinhibition Subscale at 6 and 12 months post-injury; Patient Health Questionnaire at 6 and 12 months post-injury. RESULTS Participants with TBI had significantly higher CSF and serum TNFα levels than healthy controls (p<0.05). Acute and chronic serum TNFα was significantly associated with disinhibition at 6 months post-injury (p=0.009, p=0.029 respectively), and 6 month disinhibition was associated with suicidal endorsement at both 6 and 12 months (p=0.045, p=0.033 respectively) and disinhibition at 12 months post-injury (p<0.001). CONCLUSION These preliminary data suggest a biological to behavioral pathway of suicidality after TBI, from TNFα to disinhibition to suicidal endorsement. Future investigation is warranted to validate these findings and clarify what biological mechanisms might underlie these relationships.
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Affiliation(s)
- S B Juengst
- Dept. Physical Medicine and Rehabilitation, University of Pittsburgh, United States
| | - R G Kumar
- Dept. Physical Medicine and Rehabilitation, University of Pittsburgh, United States
| | - P M Arenth
- Dept. Physical Medicine and Rehabilitation, University of Pittsburgh, United States
| | - A K Wagner
- Dept. Physical Medicine and Rehabilitation, University of Pittsburgh, United States; Center for Neuroscience, University of Pittsburgh, United States; Safar Center for Resuscitation Research, University of Pittsburgh, United States.
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144
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Hultcrantz M, Svensson T, Derolf ÅR, Kristinsson SY, Lindqvist EK, Ekbom A, Granath F, Björkholm M. Incidence and risk factors for suicide and attempted suicide following a diagnosis of hematological malignancy. Cancer Med 2014; 4:147-54. [PMID: 25155101 PMCID: PMC4312128 DOI: 10.1002/cam4.316] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 06/25/2014] [Accepted: 07/13/2014] [Indexed: 11/07/2022] Open
Abstract
Solid tumors are associated with an increased risk of suicide, however, there is limited detailed information on the risk of suicide in patients with hematological malignancies. Therefore, we conducted a population-based study including 47,220 patients with hematological malignancies (diagnosed 1992-2006) and their 235,868 matched controls to define the incidence and risk factors for suicide and suicide attempt. Information on suicides, suicide attempts, and preexisting psychiatric disorders was obtained from Swedish registers and individual medical records. There was a twofold increased (hazard ratio [HR] = 1.9, 95% confidence interval 1.5-2.3, P < 0.0001) risk of suicide/suicide attempt during the first 3 years after diagnosis in patients with hematological malignancies compared to matched controls. Of all hematological malignancies, multiple myeloma was associated with the highest risk (HR = 3.4; 2.3-5.0, P < 0.0001). Patients with a preexisting psychiatric disorder were at a very high risk of suicide and suicide attempt (HR = 23.3; 16.6-32.6, P < 0.0001), regardless of type of hematological malignancy. Among patients who committed suicide, 19% were in a palliative phase and 44% were in remission with no active treatment. In conclusion, the risk of suicide and suicide attempt is elevated in patients with hematological malignancies. Certain high-risk patients may benefit from early detection and preventive measures.
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Affiliation(s)
- Malin Hultcrantz
- Division of Hematology, Department of Medicine, Karolinska University Hospital Solna and Karolinska Institutet, Stockholm, Sweden
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Castro-Díaz S, Gómez-Restrepo C, Gil F, Uribe Restrepo M, Miranda C, de la Espriella M, Arenas Á, Pinto D. [Risk Factors for Suicidal Ideation in Patients with Depressive Disorders in Colombia]. ACTA ACUST UNITED AC 2014; 43 Suppl 1:27-35. [PMID: 26574111 DOI: 10.1016/j.rcp.2013.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Accepted: 11/28/2013] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Suicidal ideation is a poor prognostic factor in patients with depression, due to the risk of suicide attempt or completed suicide. However, it is a relatively unexplored aspect in the Colombian population. It is important to identify the associated factors in order to develop appropriate treatment strategies. OBJECTIVE To identify risk factors for suicidal ideation in patients with major depressive disorder between 18 and 65 years in 5 Colombian cities. METHODS Data from 295 patients diagnosed with major depressive disorder were used from the Study of the Economic Burden of Depression in Colombia. The association between the clinical and psychosocial variables with the presence of suicidal ideation was assessed using two-level hierarchical models. RESULTS Female sex was a factor associated with a lower risk of suicidal ideation. Factors associated with the presence of suicidal ideation include unemployment, smoking and alcohol use in the past 30 days, mental health perceived as fair or poor, diagnosis of double depression, inpatient treatment, low income, unemployment, and a major financial crisis in the last 2 years. CONCLUSIONS Suicidal ideation is highly prevalent in patients with major depressive disorder. Risk factors associated with both the clinical and psychosocial domain must be carefully evaluated during risk assessment of patients with this diagnosis.
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Affiliation(s)
- Sergio Castro-Díaz
- Médico, residente de Psiquiatría de tercer año, Departamento de Psiquiatría y Salud Mental, Pontificia Universidad Javeriana, Bogotá, Colombia.
| | - Carlos Gómez-Restrepo
- Médico psiquiatra, psicoanalista, epidemiólogo clínico, profesor del Departamento de Psiquiatría y Salud Mental, director del Departamento de Epidemiología Clínica y Bioestadística, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Fabián Gil
- Estadístico y bioestadístico, profesor asistente del Departamento de Epidemiología Clínica y Bioestadística, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Miguel Uribe Restrepo
- Médico psiquiatra, psicoanalista, Departamento de Psiquiatría y Salud Mental, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Carlos Miranda
- Médico psiquiatra, director médico del Hospital Psiquiátrico Universitario del Valle, profesor de la Universidad del Valle, Cali, Colombia
| | - Mauricio de la Espriella
- Médico psiquiatra, director médico de la Clínica Nuestra Señora del Perpetuo Socorro, Pasto. Profesor del Departamento de Psiquiatría y Salud Mental, Pontificia Universidad Javeriana, Pasto, Colombia
| | - Álvaro Arenas
- Médico psiquiatra, director científico de la Clínica la Inmaculada. Instructor del Departamento de Psiquiatría y Salud Mental, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Diana Pinto
- Médica, magistra en Administración de Salud, DSc en Economía y Política de Salud Internacional. Profesora asociada del Departamento de Epidemiología Clínica y Bioestadística, Pontificia Universidad Javeriana, Bogotá, Colombia
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146
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Inflammation and depression: unraveling the complex interplay in inflammatory bowel disease. J Pediatr Gastroenterol Nutr 2014; 58:541-2. [PMID: 24385077 DOI: 10.1097/mpg.0000000000000292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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147
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Triglycerides as a biological marker of repeated re-hospitalization resulting from deliberate self-harm in acute psychiatry patients: a prospective observational study. BMC Psychiatry 2014; 14:54. [PMID: 24568671 PMCID: PMC3938022 DOI: 10.1186/1471-244x-14-54] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 02/21/2014] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Biological factors have been associated with deliberate self-harm (DSH) but have not been integrated with clinical factors in routine risk assessments.This study aimed to examine the incremental validity of lipid levels and platelet serotonin when combined with psychosocial factors in risk assessments for repeated admissions due to DSH. METHODS In this prospective observational study of 196 acutely admitted patients, results of blood tests performed upon admission and the MINI Suicidal Scale and psychosocial DSH risk factor assessments performed at discharge were compared with the incidence of DSH recorded during the first 3 and 12 months after discharge. RESULTS High triglyceride levels were found to be a significant marker for patients admitted 3 or more times due to DSH (repeated DSH, DSH-R) when tested against other significant risk factors. When all (9) significant univariate factors associated with 12-month post-discharge DSH-R were analyzed in a multivariate logistic regression, the MINI Suicidal Scale (p = 0.043), a lack of insight (p = 0.040), and triglyceride level (p = 0.020) remained significant. The estimated 12-month area under the curve of the receiver operator characteristic (ROC-AUC) for DSH-R was 0.74 for triglycerides, 0.81 for the MINI, 0.89 for the MINI + psychosocial factors, and 0.91 for the MINI + psychosocial factors + triglycerides. The applied multifaceted approach also significantly discriminated between 12-month post-discharge DSH-R patients and other DSH patients, and a lack of insight (p = 0.047) and triglycerides (p = 0.046) remained significant for DSH-R patients in a multivariate analysis in which other DSH patients served as the reference group (rather than non-DSH patients). CONCLUSION The triglyceride values provided incremental validity to the MINI Suicidal Scale and psychosocial risk factors in the assessment of the risk of repeated DSH. Therefore, a bio-psychosocial approach appears promising, but further research is necessary to refine and validate this method.
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148
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Hoyo-Becerra C, Huebener A, Trippler M, Lutterbeck M, Liu ZJ, Truebner K, Bajanowski T, Gerken G, Hermann DM, Schlaak JF. Concomitant interferon alpha stimulation and TLR3 activation induces neuronal expression of depression-related genes that are elevated in the brain of suicidal persons. PLoS One 2013; 8:e83149. [PMID: 24391741 PMCID: PMC3877033 DOI: 10.1371/journal.pone.0083149] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 10/30/2013] [Indexed: 02/07/2023] Open
Abstract
We have previously identified 15 genes that are associated with the development of severe depressive side effects during the standard therapy with interferon alpha and ribavirin in the peripheral blood of hepatitis C virus infected patients. An enhanced expression of these genes was also found in the blood of psychiatric patients suffering severe depressive episode. Herein, we demonstrate that the same depression-related interferon-inducible genes (DRIIs) are also upregulated in post-mortem brains of suicidal individuals. Using cultured mouse hippocampal and prefrontal neurons we show that costimulation with murine IFN (mIFN) and the TLR3 agonist poly(I:C) promotes the expression of the described DRIIs, at the same time inducing pro-inflammatory cytokine expression through Stat1 and Stat3 activation, promoting neuronal apoptosis. Consequently, the upregulation of selective DRIIs, production of inflammatory cytokines and inhibition of neuronal plasticity may be involved in the pathogenesis of IFN-associated depression.
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Affiliation(s)
- Carolina Hoyo-Becerra
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
| | - Anastasia Huebener
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
| | - Martin Trippler
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
| | - Melanie Lutterbeck
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
| | - Zijian J. Liu
- Department of Anatomy, Tongji Medical College of Huazhong, University of Science and Technology, Wuhan City, P.R.China
| | - Kurt Truebner
- Institute for Forensic Medicine, University Hospital of Essen, Essen, Germany
| | - Thomas Bajanowski
- Institute for Forensic Medicine, University Hospital of Essen, Essen, Germany
| | - Guido Gerken
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
| | - Dirk M. Hermann
- Department of Neurology, University Hospital of Essen, Essen, Germany
| | - Joerg F. Schlaak
- Department of Gastroenterology and Hepatology, University Hospital of Essen, Essen, Germany
- * E-mail:
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149
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Nemeroff CB. Psychoneuroimmunoendocrinology: the biological basis of mind-body physiology and pathophysiology. Depress Anxiety 2013; 30:285-7. [PMID: 23576236 DOI: 10.1002/da.22110] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Charles B Nemeroff
- Center on Aging, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA.
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