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Niazi S, Krogh Nielsen M, Sørensen TL, Subhi Y. Neutrophil-to-lymphocyte ratio in age-related macular degeneration: a systematic review and meta-analysis. Acta Ophthalmol 2019; 97:558-566. [PMID: 30811869 DOI: 10.1111/aos.14072] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/02/2019] [Indexed: 12/17/2022]
Abstract
Age-related macular degeneration (AMD) is aetiologically linked to immunological ageing and dysfunction. One aspect of this is the altered neutrophil-to-lymphocyte ratio (NLR), which in other domains have been associated with inflammation and angiogenesis, and therefore investigated in patients with AMD in several papers. In this systematic review and meta-analysis, we summarize findings in patients with AMD in relation to NLR, both qualitatively and quantitatively. We searched PubMed/MEDLINE, EMBASE, Web of Science, and the Cochrane Central and identified six studies from where we extracted data on 1178 individuals (777 patients with AMD and 401 healthy controls). Patients with AMD had a higher NLR (weighted mean difference: 0.37, CI 95% 0.08 to 0.66, p = 0.013) when compared to healthy controls. In subgroup analyses, we did not find a significant difference between patients with dry AMD and healthy controls (weighted mean difference: 0.34, CI 95% -0.03 to 0.69, p = 0.068), but did find a strong significant difference between patients with neovascular AMD and healthy controls (weighted mean difference: 0.54, CI 95% 0.23 to 0.86, p = 0.00068). Hence, we find that the association between AMD and elevated NLR may have stronger relevance to the neovascular subtype of AMD. However, the clinical value of measuring the NLR remains unclear.
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Affiliation(s)
- Siar Niazi
- Department of Ophthalmology Zealand University Hospital Roskilde Denmark
- Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | | | - Torben Lykke Sørensen
- Department of Ophthalmology Zealand University Hospital Roskilde Denmark
- Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
| | - Yousif Subhi
- Department of Ophthalmology Zealand University Hospital Roskilde Denmark
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52
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van der Willik KD, Fani L, Rizopoulos D, Licher S, Fest J, Schagen SB, Ikram MK, Ikram MA. Balance between innate versus adaptive immune system and the risk of dementia: a population-based cohort study. J Neuroinflammation 2019; 16:68. [PMID: 30927918 PMCID: PMC6441146 DOI: 10.1186/s12974-019-1454-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/18/2019] [Indexed: 12/31/2022] Open
Abstract
Background Immunity has been suggested to be important in the pathogenesis of dementia. However, the contribution of innate versus adaptive immunity in the development of dementia is not clear. In this study, we aimed to investigate (1) the association between components of innate immunity (granulocytes and platelets) and adaptive immunity (lymphocytes) with risk of dementia and (2) the association between their derived ratios (granulocyte-to-lymphocyte ratio [GLR], platelet-to-lymphocyte ratio [PLR], and systemic immune-inflammation index [SII]), reflecting the balance between innate and adaptive immunity, with risk of dementia. Methods Blood cell counts were measured repeatedly between 2002 and 2015 in dementia-free participants of the prospective population-based Rotterdam Study. Participants were followed-up for dementia until 1 January 2016. Joint models were used to determine the association between granulocyte, platelets, and lymphocyte counts, and their derived ratios with risk of dementia. Results Of the 8313 participants (mean [standard deviation] age 61.1 [7.4] years, 56.9% women), 664 (8.0%) developed dementia during a median follow-up of 8.6 years. Doubling of granulocyte and platelet counts tended to be associated with an increased risk of dementia (HR [95%CI] 1.22 [0.89–1.67] and 1.45 [1.07–1.95], respectively). Doubling of the derived ratios GLR, PLR, and SII were all associated with an increased dementia risk (HR [95%CI] 1.26 [1.03–1.53], 1.27 [1.05–1.53], and 1.15 [0.98–1.34], respectively). Conclusions GLR, PLR, and SII are associated with an increased risk of dementia in the general population. This supports the role of an imbalance in the immune system towards innate immunity in the pathogenesis of dementia. Electronic supplementary material The online version of this article (10.1186/s12974-019-1454-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kimberly D van der Willik
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, PO Box 2040, 3000CA, Rotterdam, the Netherlands.,Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Lana Fani
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, PO Box 2040, 3000CA, Rotterdam, the Netherlands
| | - Dimitris Rizopoulos
- Department of Biostatistics, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Silvan Licher
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, PO Box 2040, 3000CA, Rotterdam, the Netherlands
| | - Jesse Fest
- Department of Surgery, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Sanne B Schagen
- Department of Psychosocial Research and Epidemiology, Netherlands Cancer Institute, Amsterdam, the Netherlands.,Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - M Kamran Ikram
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, PO Box 2040, 3000CA, Rotterdam, the Netherlands.,Department of Neurology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, PO Box 2040, 3000CA, Rotterdam, the Netherlands.
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53
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Melo MCA, Garcia RF, de Araújo CFC, Abreu RLC, de Bruin PFC, de Bruin VMS. Clinical significance of neutrophil-lymphocyte and platelet-lymphocyte ratios in bipolar patients: An 18-month prospective study. Psychiatry Res 2019; 271:8-14. [PMID: 30448449 DOI: 10.1016/j.psychres.2018.10.077] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 10/15/2018] [Accepted: 10/30/2018] [Indexed: 12/18/2022]
Abstract
Neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) have recently been investigated as inexpensive and reproducible markers of systemic inflammation in many diseases. However, few studies evaluate clinical and prognostic value of NLR and PLR in psychiatric patients. The objective of this study is to investigate the clinical repercussions of NLR and PLR in patients with bipolar disorder (BD). An 18-month prospective study followed up eighty euthymic BD outpatients. Baseline data included an interviewer-administered questionnaire, behavioral scales and a blood count to calculate NLR and PLR. The occurrence of mood episodes and hospitalizations was assessed monthly for 18 months. Higher NLR and PRL were associated with more anxious symptoms and poorer functioning. BD patients with Night Eating Syndrome (NES) had higher PLR and tended to higher NLR. No association with other sleep parameters was evidenced. Higher NLR and PRL were also associated with more episodes and hospitalizations after 18 months. However, only higher baseline NLR was related to more (hypo)mania episodes. NLR and PLR are important prognostic factor for BD. This study suggested the importance of a simple blood count, an inexpensive and reproducible exam, in evaluating the course of the BD. Further studies must be performed to confirm these results.
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Affiliation(s)
- Matias Carvalho Aguiar Melo
- Department of Medical Sciences, Federal University of Ceará, Fortaleza, Brazil; Professor Frota Pinto Mental Health Hospital, Fortaleza, Brazil; Fortaleza University, Fortaleza, Brazil.
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54
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Özyurt G, Binici NC. Increased neutrophil-lymphocyte ratios in depressive adolescents is correlated with the severity of depression. Psychiatry Res 2018; 268:426-431. [PMID: 30130709 DOI: 10.1016/j.psychres.2018.08.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/25/2018] [Accepted: 08/04/2018] [Indexed: 12/20/2022]
Abstract
We aimed to investigate the neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in adolescents with major depression. Sixty-seven adolescents and 121 healthy controls were enrolled in the study. The diagnosis was made by using both the Kiddie and Young Adult Schedule for Affective Disorders and Schizophrenia Present and Lifetime Version and the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition. The severity of depressive symptoms was evaluated using the Beck depression inventory (BDI). The neutrophil-lymphocyte ratios of the adolescents with depression were significantly higher than those of the control group, even after adjusting for age, sex, BMI, and BDI scores, whereas there was no significant difference in platelet-lymphocyte ratios. A positive correlation between the severity of depression and neutrophil-lymphocyte ratios and platelet-lymphocyte ratios were determined in the case group. The results of this study may promote the hypothesis that inflammation plays an important role in the etiology of major depression in adolescents.
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Affiliation(s)
- Gonca Özyurt
- Department of Child and Adolescent Psychiatry, Katip Çelebi University School of Medicine, İzmir, Turkey.
| | - Nagihan Cevher Binici
- Department of Child and Adolescent Psychiatry, University of Health Sciences Dr. Behçet Uz Child Disease and Pediatric Surgery Training and Research Hospital, İzmir, Turkey
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55
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Chistyakov DV, Astakhova AA, Sergeeva MG. Resolution of inflammation and mood disorders. Exp Mol Pathol 2018; 105:190-201. [PMID: 30098318 DOI: 10.1016/j.yexmp.2018.08.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/21/2018] [Accepted: 08/07/2018] [Indexed: 02/08/2023]
Abstract
Relationship between mood disorders and inflammation is now well-documented, although molecular mechanisms are not understood. Previously mostly pro-inflammatory cytokines of immune system (IL-6, TNF, etc.) were taken into account. However, recent understanding of resolution of inflammation as an active process drew attention to mediators of resolution, which include both proteins and ω-3 and ω-6 polyunsaturated fatty acids derivatives (resolvins, cyclopentenone prostaglandins, etc.). This review takes into account new data on resolution of inflammation and action of mediators of resolution in models of depression. New facts and ideas about mechanisms of chronic inflammation onset are considered in relation to mood disorders. Basic control mechanisms of inflammation at the cellular level and the role of resolution substances in regulation of depression and other mood disorders are discussed. Signaling systems of innate immunity located in non-immune cells and their ability to generate substances that affect an onset of depression are reviewed. A novel hypothesis of depression as a type of abnormal resolution is proposed.
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Affiliation(s)
- Dmiry V Chistyakov
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia; Pirogov Russian National Research Medical University, Moscow, Russia
| | - Alina A Astakhova
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | - Marina G Sergeeva
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia.
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56
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Avcil S. Evaluation of the neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, and mean platelet volume as inflammatory markers in children with attention-deficit hyperactivity disorder. Psychiatry Clin Neurosci 2018; 72:522-530. [PMID: 29607599 DOI: 10.1111/pcn.12659] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/08/2018] [Accepted: 03/23/2018] [Indexed: 12/14/2022]
Abstract
AIM The neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), monocyte/lymphocyte ratio (MLR), and mean platelet volume (MPV) have recently been used as indicators of a systemic inflammatory response. The aim of this study was to investigate the relations of the NLR, PLR, MLR, and MPV with attention-deficit hyperactivity disorder (ADHD). METHODS The study group consisting of 82 children diagnosed with ADHD was compared with a healthy control (HC) group of 70 age-, sex-, and body-mass-index-matched subjects. The NLR, PLR, MLR, and MPV were measured according to the complete blood count. RESULTS The NLR, PLR, MLR, MPV, and neutrophil count of the ADHD group were significantly higher than those of the HC group. The lymphocyte counts of the patients were significantly lower than those of the HC group. CONCLUSION Inflammation might play a role in the etiopathogenesis of ADHD. The NLR, PLR, MLR, and MPV may be potential inflammation markers for ADHD in children.
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Affiliation(s)
- Sibelnur Avcil
- Department of Child and Adolescent Psychiatry, Adnan Menderes University Faculty of Medicine, Aydın, Turkey
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57
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Mazza MG, Lucchi S, Tringali AGM, Rossetti A, Botti ER, Clerici M. Neutrophil/lymphocyte ratio and platelet/lymphocyte ratio in mood disorders: A meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry 2018. [PMID: 29535038 DOI: 10.1016/j.pnpbp.2018.03.012] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The immune and inflammatory system is involved in the etiology of mood disorders. Neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR) and monocyte/lymphocyte ratio (MLR) are inexpensive and reproducible biomarkers of inflammation. This is the first meta-analysis exploring the role of NLR and PLR in mood disorder. We identified 11 studies according to our inclusion criteria from the main Electronic Databases. Meta-analyses were carried out generating pooled standardized mean differences (SMDs) between index and healthy controls (HC). Heterogeneity was estimated. Relevant sensitivity and meta-regression analyses were conducted. Subjects with bipolar disorder (BD) had higher NLR and PLR as compared with HC (respectively SMD = 0.672; p < 0.001; I2 = 82.4% and SMD = 0.425; p = 0.048; I2 = 86.53%). Heterogeneity-based sensitivity analyses confirmed these findings. Subgroup analysis evidenced an influence of bipolar phase on the overall estimate whit studies including subjects in manic and any bipolar phase showing a significantly higher NLR and PLR as compared with HC whereas the effect was not significant among studies including only euthymic bipolar subjects. Meta-regression showed that age and sex influenced the relationship between BD and NLR but not the relationship between BD and PLR. Meta-analysis was not carried out for MLR because our search identified only one study when comparing BD to HC, and only one study when comparing MDD to HC. Subjects with major depressive disorder (MDD) had higher NLR as compared with HC (SMD = 0.670; p = 0.028; I2 = 89.931%). Heterogeneity-based sensitivity analyses and meta-regression confirmed these findings. Our meta-analysis supports the hypothesis that an inflammatory activation occurs in mood disorders and NLR and PLR may be useful to detect this activation. More researches including comparison of NLR, PLR and MLR between different bipolar phases and between BD and MDD are needed.
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Affiliation(s)
- Mario Gennaro Mazza
- Department of Medicine and Surgery, University of Milano Bicocca, Monza, MB, Italy.
| | - Sara Lucchi
- Department of Medicine and Surgery, University of Milano Bicocca, Monza, MB, Italy
| | | | - Aurora Rossetti
- Department of Medicine and Surgery, University of Milano Bicocca, Monza, MB, Italy
| | - Eugenia Rossana Botti
- Servizio Psichiatrico di Diagnosi e Cura, Ospedale di Desio, Azienda Socio Sanitaria Territoriale di Monza, Italy
| | - Massimo Clerici
- Department of Medicine and Surgery, University of Milano Bicocca, Monza, MB, Italy
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58
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Le Page A, Lamoureux J, Bourgade K, Frost EH, Pawelec G, Witkowski JM, Larbi A, Dupuis G, Fülöp T. Polymorphonuclear Neutrophil Functions are Differentially Altered in Amnestic Mild Cognitive Impairment and Mild Alzheimer's Disease Patients. J Alzheimers Dis 2018; 60:23-42. [PMID: 28777750 DOI: 10.3233/jad-170124] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The mechanisms of neurodegeneration in Alzheimer's disease (AD) remain under investigation. Alterations in the blood-brain barrier facilitate exchange of inflammatory mediators and immune cells between the brain and the periphery in AD. Here, we report analysis of phenotype and functions of polymorphonuclear neutrophils (PMN) in peripheral blood from patients with amnestic mild cognitive impairment (aMCI, n = 13), patients with mild AD (mAD, n = 15), and healthy elderly controls (n = 13). Results showed an increased expression of CD177 in mAD but not in healthy or aMCI patients. IL-8 stimulated increased expression of the CD11b integrin in PMN of healthy subjects in vitro but PMN of aMCI and mAD patients failed to respond. CD14 and CD16 expression was lower in PMN of mAD but not in aMCI individuals relative to controls. Only PMN of aMCI subjects expressed lower levels of CD88. Phagocytosis toward opsonized E. coli was differentially impaired in PMN of aMCI and mAD subjects whereas the capacity to ingest Dextran particles was absent only in mAD subjects. Killing activity was severely impaired in aMCI and mAD subjects whereas free radical production was only impaired in mAD patients. Inflammatory cytokine (TNFα, IL-6, IL-1β, IL-12p70) and chemokine (MIP-1α, MIP-1β, IL-8) production in response to LPS stimulation was very low in aMCI and nearly absent in mAD subjects. TLR2 expression was low only in aMCI. Our data showed a differentially altered capacity of PMN of aMCI and mAD subjects to respond to pathological aggression that may impact impaired responses associated with AD development.
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Affiliation(s)
- Aurélie Le Page
- Research Center on Aging, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Julie Lamoureux
- Graduate Program in Physiology-Biophysics, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Karine Bourgade
- Research Center on Aging, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Eric H Frost
- Department of Microbiology and Infectiology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Graham Pawelec
- Department of Internal Medicine II, Center for Medical Research University of Tübingen, Tübingen, Germany.,Health Sciences North Research Institute, Sudbury, ON, Canada
| | - Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdańsk, Gdańsk, Poland
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A-Star), 8A Biomedical Grove, Immunos, Singapore
| | - Gilles Dupuis
- Department of Biochemistry, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Tamàs Fülöp
- Research Center on Aging, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
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59
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Lawrence E, Vegvari C, Ower A, Hadjichrysanthou C, De Wolf F, Anderson RM. A Systematic Review of Longitudinal Studies Which Measure Alzheimer's Disease Biomarkers. J Alzheimers Dis 2018; 59:1359-1379. [PMID: 28759968 PMCID: PMC5611893 DOI: 10.3233/jad-170261] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Alzheimer’s disease (AD) is a progressive and fatal neurodegenerative disease, with no effective treatment or cure. A gold standard therapy would be treatment to slow or halt disease progression; however, knowledge of causation in the early stages of AD is very limited. In order to determine effective endpoints for possible therapies, a number of quantitative surrogate markers of disease progression have been suggested, including biochemical and imaging biomarkers. The dynamics of these various surrogate markers over time, particularly in relation to disease development, are, however, not well characterized. We reviewed the literature for studies that measured cerebrospinal fluid or plasma amyloid-β and tau, or took magnetic resonance image or fluorodeoxyglucose/Pittsburgh compound B-positron electron tomography scans, in longitudinal cohort studies. We summarized the properties of the major cohort studies in various countries, commonly used diagnosis methods and study designs. We have concluded that additional studies with repeat measures over time in a representative population cohort are needed to address the gap in knowledge of AD progression. Based on our analysis, we suggest directions in which research could move in order to advance our understanding of this complex disease, including repeat biomarker measurements, standardization and increased sample sizes.
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Affiliation(s)
- Emma Lawrence
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
| | - Carolin Vegvari
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
| | - Alison Ower
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
| | | | - Frank De Wolf
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK.,Janssen Prevention Center, Leiden, The Netherlands
| | - Roy M Anderson
- Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
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60
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Lori A, Maddox SA, Sharma S, Andero R, Ressler KJ, Smith AK. Dynamic Patterns of Threat-Associated Gene Expression in the Amygdala and Blood. Front Psychiatry 2018; 9:778. [PMID: 30705647 PMCID: PMC6344436 DOI: 10.3389/fpsyt.2018.00778] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/24/2018] [Indexed: 12/16/2022] Open
Abstract
Stress and trauma profoundly influence psychiatric biobehavioral outcomes. The identification of treatment and biomarker targets would be accelerated by a broad understanding of the biological responses to these events. The goal of this study was to determine genes responsive to auditory fear conditioning (FC), a well-characterized amygdala-dependent rodent model of threat-exposure, in the presence or absence of prior stress history, providing insight into the physiological processes underlying response to trauma. RNA-sequencing was performed in blood and amygdala from mice that underwent fear conditioning with (Immo+FC) and without (FC) prior immobilization stress, a paradigm that induces HPA axis, and behavioral stress sensitization. In the amygdala, 607 genes were regulated by FC vs. home-cage (HC) controls, and 516 genes differed in stress-sensitized mice (Immo+FC vs. FC). In the former, we observed an enhancement of specific biological processes involved in learning and synaptic transmission, and in the latter processes associated with cell proliferation and the cellular response to drugs. In the blood of stress-sensitized animals, 468 genes were dynamically regulated when compared to FC, and were enriched for the biological pathways of inflammation and cytokine signaling. This study identified genes and pathways that respond to threat in the amygdala and blood of mice with and without a prior stress history and reveals the impact of stress history on subsequent inflammation. Future studies will be needed to examine the role of these dynamically regulated genes may play in human clinical stress and trauma-related disorders.
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Affiliation(s)
- Adriana Lori
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
| | - Stephanie A Maddox
- Neurobiology of Fear Laboratory, Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, United States.,Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Sumeet Sharma
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States.,Neurobiology of Fear Laboratory, Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, United States
| | - Raül Andero
- Institut de Neurociènces, Universitat Autònoma de Barcelona, Bellaterra, Spain.,CIBERSAM, Corporació Sanitaria Parc Taulí, Sabadell, Spain.,Department of Psychobiology and Methodology in Health Sciences, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Kerry J Ressler
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States.,Neurobiology of Fear Laboratory, Division of Depression and Anxiety Disorders, McLean Hospital, Belmont, MA, United States.,Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Alicia K Smith
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States.,Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
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61
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Haghshomar M, Rahmani F, Hadi Aarabi M, Shahjouei S, Sobhani S, Rahmani M. White Matter Changes Correlates of Peripheral Neuroinflammation in Patients with Parkinson's Disease. Neuroscience 2017; 403:70-78. [PMID: 29126955 DOI: 10.1016/j.neuroscience.2017.10.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 12/23/2022]
Abstract
Neuroinflammatory pathology has long been identified to contribute to the pathology of Parkinson disease. Early microstructural changes in white matter tracts might give a clue for earlier detection of PD. We investigated through diffusion MRI connectometry the structural correlates of white matter tracts of 81 patients with PD with whole blood neutrophil-to-lymphocyte ratio (NLR), controlling for age and sex. Diffusion data were reconstructed in the MNI space using q-space diffeomorphic reconstruction to obtain the spin distribution function. The spin distribution function (SDF) values were used in DMRI connectometry analysis. The connectometry analyses identified white matter QA of the following fibers to be correlated with NLR score after adjustment for age and sex: bilateral cingulum, body and left crus of fornix, bilateral corticospinal tract (CST), and body and splenium of corpus callosum (CC) and superior cerebellar peduncle with decreased connectivity related to NLR (FDR = 0.04542). Keeping with emerging evidence on the role of neuroinflammation in PD pathology, these results with functional relevance to prodromal Parkinson disease, bring new insights to pivotal role of peripheral inflammation in CNS neurodegeneration.
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Affiliation(s)
- Maryam Haghshomar
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Rahmani
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Hadi Aarabi
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shima Shahjouei
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Department of Neurology, Tehran University of Medical Sciences, Tehran, Iran
| | - Soheila Sobhani
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Rahmani
- NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Endocrine Research Center (ERC), Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
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62
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Kalelioglu T, Yuruyen M, Gultekin G, Yavuzer H, Özturk Y, Kurt M, Topcu Y, Doventas A, Emul M. Neutrophil and platelet to lymphocyte ratios in people with subjective, mild cognitive impairment and early Alzheimer's disease. Psychogeriatrics 2017; 17:506-508. [PMID: 28386987 DOI: 10.1111/psyg.12260] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/06/2017] [Accepted: 02/08/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Tevfik Kalelioglu
- Department of Psychiatry, Bakırköy Mental Health Research and Training State Hospital, Istanbul, Turkey
| | - Mehmet Yuruyen
- Department of Geriatric Medicine, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
| | - Gozde Gultekin
- Department of Psychiatry, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
| | - Hakan Yavuzer
- Department of Geriatric Medicine, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
| | | | | | - Yildiray Topcu
- Department of Geriatric Medicine, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
| | - Alper Doventas
- Department of Geriatric Medicine, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
| | - Murat Emul
- Department of Psychiatry, Medical School of Cerrahpasa, Istanbul University, Istanbul, Turkey
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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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Subhi Y, Lykke Sørensen T. New neovascular age-related macular degeneration is associated with systemic leucocyte activity. Acta Ophthalmol 2017; 95:472-480. [PMID: 27860298 DOI: 10.1111/aos.13330] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/07/2016] [Indexed: 12/11/2022]
Abstract
PURPOSE To investigate systemic leucocyte activity in subtypes of age-related macular degeneration (AMD) and onset of neovascular AMD. METHODS Patients with early and late AMD and age-matched control individuals were recruited consecutively, and venous blood was sampled for differential leucocyte counts. Patients with neovascular AMD were grouped based on time of blood sampling in relation to diagnosis of neovascular AMD: diagnosis of new neovascular AMD more than 30 days before blood sampling, within 30 days of blood sampling and more than 30 days after blood sampling. RESULTS Of 347 recruited participants, 330 fulfilled the eligibility criteria (77 age-matched controls, 33 with early AMD, 56 with geographic atrophy and 164 with neovascular AMD). We did not find any differences in the differential counts between patients at different stages of AMD and age-matched control individuals. However, lymphocyte and monocytes-basophils-eosinophils mixed (MXD) counts were both significantly increased in patients with new neovascular AMD. Among these patients; higher MXD correlated with lower BCVA, larger central foveal thickness and larger total lesion size; higher lymphocytes correlated with smaller total lesion size; higher neutrophils correlated with CNV lesion size; and higher neutrophil-to-lymphocyte ratio correlated with larger lesion size. CONCLUSIONS Systemic leucocyte activity is associated with onset of CNV in patients with AMD and correlate with lesion size and BCVA, which suggest that acute systemic immune activity may play a role in neovascular flaring of AMD.
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Affiliation(s)
- Yousif Subhi
- Clinical Eye Research Unit; Department of Ophthalmology; Zealand University Hospital; Roskilde Denmark
- Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
| | - Torben Lykke Sørensen
- Clinical Eye Research Unit; Department of Ophthalmology; Zealand University Hospital; Roskilde Denmark
- Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen Denmark
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Cataudella E, Giraffa CM, Di Marca S, Pulvirenti A, Alaimo S, Pisano M, Terranova V, Corriere T, Ronsisvalle ML, Di Quattro R, Stancanelli B, Giordano M, Vancheri C, Malatino L. Neutrophil-To-Lymphocyte Ratio: An Emerging Marker Predicting Prognosis in Elderly Adults with Community-Acquired Pneumonia. J Am Geriatr Soc 2017; 65:1796-1801. [PMID: 28407209 DOI: 10.1111/jgs.14894] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To explore the performance of the neutrophil-to-lymphocyte ratio (NLR), an index of systemic inflammation that predicts prognosis of several diseases, in a cohort of elderly adults with community-acquired pneumonia (CAP). DESIGN Prospective clinical study from January 2014 to July 2016. SETTING Unit of Internal Medicine, University of Catania, Catania, Italy. PARTICIPANTS Elderly adults admitted for CAP (N = 195). MEASUREMENTS Clinical diagnosis of CAP was defined as the presence of a new infiltrate on plain chest radiography or chest computed tomography associated with one or more suggestive clinical features such as dyspnea, hypo- or hyperthermia, cough, sputum production, tachypnea (respiration rate >20 breaths per minute), altered breath sounds on physical examination, hypoxemia (partial pressure of oxygen <60 mmHg), leukocytosis (white blood cell count >10,000/μL). Clinical examination, traditional tests such as Pneumonia Severity Index (PSI); Confusion, Urea, Respiratory rate, Blood pressure, aged 65 and older (CURB-65), and NLR were evaluated at admission. The accuracy and predictive value for 30-day mortality of traditional scores and NLR were compared. RESULTS NLR predicted 30-day mortality (P < .001) and performed better than PSI (P < .05), CURB-65, C-reactive protein, and white blood cell count (P < .001) to predict prognosis. No deaths occurred in participants with a NLR of less than 11.12. Thirty-day mortality was 30% in those with a NLR between 11.12% and 13.4% and 50% in those with a NLR between 13.4 and 28.3. All participants with a NLR greater than 28.3 died within 30 days. CONCLUSIONS These results would encourage early discharge of individuals with a NLR of less than 11.12, short-term in-hospital care for those with a NLR between 11.12 and 13.4, middle-term hospitalization for those with a NLR between 13.4 and 28.3, and admission to a respiratory intensive care unit for those with a NLR greater than 28.3.
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Affiliation(s)
- Emanuela Cataudella
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Chiara M Giraffa
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Salvatore Di Marca
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Alfredo Pulvirenti
- Unit of Bioinformatics and Computer Science, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Salvatore Alaimo
- Unit of Bioinformatics and Computer Science, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Marcella Pisano
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Valentina Terranova
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Thea Corriere
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Maria L Ronsisvalle
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Rosario Di Quattro
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Benedetta Stancanelli
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
| | - Mauro Giordano
- Department of Medical, Surgical, Neurologic, Metabolic and Geriatric Sciences, School of Emergency Medicine, Second University of Naples, Naples, Italy
| | - Carlo Vancheri
- Unit of Lung Diseases, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lorenzo Malatino
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine, School of Emergency Medicine, University of Catania, Cannizzaro Hospital, Catania, Italy
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Pietronigro EC, Della Bianca V, Zenaro E, Constantin G. NETosis in Alzheimer's Disease. Front Immunol 2017; 8:211. [PMID: 28303140 PMCID: PMC5332471 DOI: 10.3389/fimmu.2017.00211] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 02/15/2017] [Indexed: 12/21/2022] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by the progressive deterioration of cognitive functions. Its neuropathological features include amyloid-β (Aβ) accumulation, the formation of neurofibrillary tangles, and the loss of neurons and synapses. Neuroinflammation is a well-established feature of AD pathogenesis, and a better understanding of its mechanisms could facilitate the development of new therapeutic approaches. Recent studies in transgenic mouse models of AD have shown that neutrophils adhere to blood vessels and migrate inside the parenchyma. Moreover, studies in human AD subjects have also shown that neutrophils adhere and spread inside brain vessels and invade the parenchyma, suggesting these cells play a role in AD pathogenesis. Indeed, neutrophil depletion and the therapeutic inhibition of neutrophil trafficking, achieved by blocking LFA-1 integrin in AD mouse models, significantly reduced memory loss and the neuropathological features of AD. We observed that neutrophils release neutrophil extracellular traps (NETs) inside blood vessels and in the parenchyma of AD mice, potentially harming the blood–brain barrier and neural cells. Furthermore, confocal microscopy confirmed the presence of NETs inside the cortical vessels and parenchyma of subjects with AD, providing more evidence that neutrophils and NETs play a role in AD-related tissue destruction. The discovery of NETs inside the AD brain suggests that these formations may exacerbate neuro-inflammatory processes, promoting vascular and parenchymal damage during AD. The inhibition of NET formation has achieved therapeutic benefits in several models of chronic inflammatory diseases, including autoimmune diseases affecting the brain. Therefore, the targeting of NETs may delay AD pathogenesis and offer a novel approach for the treatment of this increasingly prevalent disease.
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Affiliation(s)
| | - Vittorina Della Bianca
- Department of Medicine, Section of General Pathology, University of Verona , Verona , Italy
| | - Elena Zenaro
- Department of Medicine, Section of General Pathology, University of Verona , Verona , Italy
| | - Gabriela Constantin
- Department of Medicine, Section of General Pathology, University of Verona , Verona , Italy
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Varsak N, Aydın M, Eren İ. İlk atak psikoz hastalarında nötrofil lenfosit oranının değerlendirilmesi. FAMILY PRACTICE AND PALLIATIVE CARE 2016. [DOI: 10.22391/920.287411] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Venturelli M, Cè E, Limonta E, Muti E, Scarsini R, Brasioli A, Schena F, Esposito F. Possible Predictors of Involuntary Weight Loss in Patients with Alzheimer's Disease. PLoS One 2016; 11:e0157384. [PMID: 27347878 PMCID: PMC4922661 DOI: 10.1371/journal.pone.0157384] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 05/27/2016] [Indexed: 02/07/2023] Open
Abstract
Loss in body mass (∆BM) is a common feature in patients with Alzheimer’s disease (AD). However, the etiology of this phenomenon is unclear. The aim of this cohort study was to observe possible ∆BM in AD patients following a standard institutionalized diet. Secondary objective was to identify possible predictors of ∆BM. To this end, 85 AD patients (age: 76±4 yrs; stature: 165±3 cm; BM: 61.6±7.4 kg; mean±standard deviation) and 86 controls (CTRL; age: 78±5 yrs; stature: 166±4 cm; BM: 61.7±6.4 kg) were followed during one year of standard institutionalized diet (~1800 kcal/24h). BM, daily energy expenditure, albuminemia, number of medications taken, and cortisolism, were recorded PRE and POST the observation period. Potential predictors of ∆BM in women (W) and men (M) with AD were calculated with a forward stepwise regression model. After one year of standard institutionalized diet, BM decreased significantly in AD (-2.5 kg; p < 0.01), while in CTRL remained unchanged (-0.4 kg; p = 0.8). AD patients and CTRL exhibited similar levels of daily energy expenditure (~1625 kcal/24h). The combination of three factors, number of medications taken, albuminemia, and cortisolism, predicted ∆BM in W with AD. At contrary, the best predictor of ∆BM in M with AD was the cortisolism. Despite a controlled energy intake and similar energy expenditure, both W and M with AD suffered of ∆BM. Therefore, controlled diet did not prevent this phenomenon. The assessments of these variables may predict W and M with AD at risk of weight loss.
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Affiliation(s)
- Massimo Venturelli
- Department of Biomedical Sciences for Health, University of Milan, via Colombo 71, 20133, Milan, Italy
- * E-mail:
| | - Emiliano Cè
- Department of Biomedical Sciences for Health, University of Milan, via Colombo 71, 20133, Milan, Italy
| | - Eloisa Limonta
- Department of Biomedical Sciences for Health, University of Milan, via Colombo 71, 20133, Milan, Italy
| | - Ettore Muti
- Mons. Mazzali Foundation, via Trento 10, 46100, Mantua, Italy
| | - Renato Scarsini
- Mons. Mazzali Foundation, via Trento 10, 46100, Mantua, Italy
| | - Anna Brasioli
- Mons. Mazzali Foundation, via Trento 10, 46100, Mantua, Italy
| | - Federico Schena
- Department of Neurological and Movement Sciences, University of Verona, via Casorati 43, 47131, Verona, Italy
| | - Fabio Esposito
- Department of Biomedical Sciences for Health, University of Milan, via Colombo 71, 20133, Milan, Italy
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69
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Neutrophil-to-lymphocyte ratio predicting suicide risk in euthymic patients with bipolar disorder: Moderatory effect of family history. Compr Psychiatry 2016; 66:87-95. [PMID: 26995241 DOI: 10.1016/j.comppsych.2016.01.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 01/11/2016] [Accepted: 01/13/2016] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Neutrophil-to-lymphocyte ratio (NLR) has been independently related to bipolar disorder (BD) and factors associated with suicidal risk. The aim of our study was to explore the relationship between NLR and suicide risk in euthymic BD patients. We also sought to propose a model of interaction between NLR and stress-diathesis factors, leading to suicidal risk in BD. METHODS The study group consisted of 83 patients diagnosed with BD (36 suicide attempters; 47 suicide non-attempters), compared to the healthy control group (n=73) and matched according to age, gender, and body mass index (BMI). NLR was measured according to the complete blood count. Mood symptoms have been assessed by Young Mania Rating Scale and Montgomery-Asberg Depression Rating Scale. Early trauma and acute stress were evaluated by Early Trauma Inventory Self Report-Short Form and List of Threatening Experiences Questionnaire, respectively. Suicide risk has been assessed by Suicide Behaviors Questionnaire-Revised (SBQ-R). RESULTS Significant correlation was found between NLR and SBQ-R score. The main effects of suicide attempts on NLR, after covarying for confounders, were observed, indicating increased NLR in BD suicide attempters compared to healthy controls. We found significant moderatory effects of family history on NLR relationship to suicidal risk, with NLR being significant positive predictor of suicidal risk only in the patients with positive family history of suicide attempts. CONCLUSIONS The results suggest an enhancing effect of positive family history of suicide attempts on predictive effect of NLR on suicide risk. Our data support the idea that immune markers can predict suicide attempt risk in BD, but only in the subpopulation of BD patients with family history of suicide attempts. This could lead to prevention in suicide behavior in the patient population at particular risk of suicide.
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70
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Nishimura M, Ohkawara T, Tetsuka K, Kawasaki Y, Nakagawa R, Satoh H, Sato Y, Nishihira J. Effects of yogurt containing Lactobacillus plantarum HOKKAIDO on immune function and stress markers. J Tradit Complement Med 2015; 6:275-80. [PMID: 27419093 PMCID: PMC4936756 DOI: 10.1016/j.jtcme.2015.07.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 07/13/2015] [Indexed: 11/04/2022] Open
Abstract
Lactobacillus plantarum HOKKAIDO (HOKKAIDO strain) was isolated from well-pickled vegetables in Hokkaido, Japan. We report a randomized, double-blind, placebo-controlled study evaluating the effects of L. plantarum HOKKAIDO on immune function and stress markers in 171 adult subjects. Subjects were divided into three groups: the L. plantarum HOKKAIDO yogurt group, the placebo-1 group who ingested yogurt without the HOKKAIDO strain, and the placebo-2 group who ingested a yogurt-like dessert without the HOKKAIDO strain. Hematological tests and body composition measurements were performed before and after 4 and 8 weeks of blinded ingestion. Although no significant differences in natural killer cell activity were observed, it was found that neutrophil ratio significantly decreased and lymphocytes tended to increase in the HOKKAIDO strain yogurt group compared with the yogurt-like dessert group. In addition, the neutrophil-to-lymphocyte ratio, a stress marker, tended to improve in the HOKKAIDO strain yogurt group compared with the yogurt-like dessert group. These results suggest that the ingestion of HOKKAIDO strain yogurt tends to improve immune activity and decrease stress markers.
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Key Words
- BMI, body mass index
- BW, body weight
- FPG, fasting plasma glucose
- HDL-C, high-density lipoprotein cholesterol
- HPA, hypothalamic-pituitary-adrenal
- HbA1c, hemoglobin A1c
- Immune activity
- LDL-C, low-density lipoprotein cholesterol
- Lactobacillus plantarum HOKKAIDO
- NK, natural killer
- NLR, neutrophil-to-lymphocyte ratio
- Natural killer cell
- Neutrophil-to-lymphocyte ratio
- Stress markers
- TC, total cholesterol
- TG, triglyceride
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Affiliation(s)
- Mie Nishimura
- Department of Medical Management and Informatics, Hokkaido Information University, Ebetsu, Hokkaido, Japan
| | - Tatsuya Ohkawara
- Department of Medical Management and Informatics, Hokkaido Information University, Ebetsu, Hokkaido, Japan; Pathophysiology and Therapeutics, Hokkaido University Faculty of Pharmaceutical Sciences, Sapporo, Japan
| | - Kyohei Tetsuka
- Hokkaido Milk Product Co. Ltd., Hakodate, Hokkaido, Japan
| | - Yo Kawasaki
- Hokkaido Milk Product Co. Ltd., Hakodate, Hokkaido, Japan
| | - Ryoji Nakagawa
- Food Processing Research Center, Hokkaido Research Organization, Ebetsu, Hokkaido, Japan
| | - Hiroki Satoh
- Department of Medical Management and Informatics, Hokkaido Information University, Ebetsu, Hokkaido, Japan
| | - Yuji Sato
- Department of Medical Management and Informatics, Hokkaido Information University, Ebetsu, Hokkaido, Japan
| | - Jun Nishihira
- Department of Medical Management and Informatics, Hokkaido Information University, Ebetsu, Hokkaido, Japan
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Ghanim B, Schweiger T, Jedamzik J, Glueck O, Glogner C, Lang G, Klepetko W, Hoetzenecker K. Elevated inflammatory parameters and inflammation scores are associated with poor prognosis in patients undergoing pulmonary metastasectomy for colorectal cancer. Interact Cardiovasc Thorac Surg 2015; 21:616-23. [PMID: 26242317 DOI: 10.1093/icvts/ivv206] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 06/23/2015] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVES Pulmonary metastasectomy (PM) has evolved to become a standard treatment for colorectal cancer lung metastases. However, biomarkers to estimate the prognosis after PM are currently missing. We therefore investigated the prognostic impact of inflammatory-related biomarkers and scores in patients undergoing curative PM for colorectal cancer. METHODS We analysed prospectively collected datasets of 52 patients treated in our institution between April 2009 and June 2014. Fibrinogen (cut-off 325 mg/dl), C-reactive protein (CRP, cut-off 0.5 mg/dl), the modified Glasgow prognostic score (mGPS) and the neutrophil-to-lymphocyte ratio (NLR) at the time of PM were tested for their prognostic power, and correlated to time to recurrence (TTR), time to lung-specific recurrence (TTLR) and overall survival (OS). RESULTS Median OS after PM of all patients (n = 52, 21 females, 31 males, mean age ± standard deviation: 62.65 ± 11.41 years) was 36 months [95% confidence interval (CI) 24.7-47.3 months, number of events: n = 20/38.5%]. In univariable survival analyses, high fibrinogen [hazard ratio (HR) 5.51, 95% CI 1.21-25.17], elevated CRP (HR 2.81, 95% CI 1.08-7.28), mGPS >0 (HR 2.81, 95% CI 1.08-7.28) and an NLR of 4 or higher (HR 3.05, 95% CI 1.02-9.13) was associated with poor OS. Median TTR was 15 months for all patients (number of events: n = 35/67.3%). Fibrinogen (HR 3.79, 95% CI 1.32-10.94) and NLR (HR 2.99, 95% CI 1.20-7.46) but not CRP (P = 0.102) and mGPS (P = 0.102) were found to indicate TTR. With regard to TTLR (number of events: n = 26/50%), only NLR predicted early lung recurrence (HR 3.02, 95% CI 1.06-8.564). After multivariable analyses, fibrinogen was the only significant OS predictor. However, all investigated inflammatory biomarkers and scores were prognostic for TTR in multivariable analyses. Finally, we divided the study population into an inflammatory phenotype (one or more inflammatory marker/score-elevated) and a non-inflammatory phenotype group. The inflammatory phenotype was prognostic in uni- and multivariable analyses for all three outcome parameters (OS, TTR and TTLR). CONCLUSIONS Inflammatory markers provided promising prognostic information in this cohort of curative PM patients after colorectal cancer. Further validation is needed to verify the prognostic role of these markers and establish them in clinical routine.
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Affiliation(s)
- Bahil Ghanim
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Thomas Schweiger
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Julia Jedamzik
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Olaf Glueck
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Christoph Glogner
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - György Lang
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Walter Klepetko
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
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Corlier F, Rivals I, Lagarde J, Hamelin L, Corne H, Dauphinot L, Ando K, Cossec JC, Fontaine G, Dorothée G, Malaplate-Armand C, Olivier JL, Dubois B, Bottlaender M, Duyckaerts C, Sarazin M, Potier MC. Modifications of the endosomal compartment in peripheral blood mononuclear cells and fibroblasts from Alzheimer's disease patients. Transl Psychiatry 2015; 5:e595. [PMID: 26151923 PMCID: PMC5068716 DOI: 10.1038/tp.2015.87] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/21/2015] [Indexed: 12/16/2022] Open
Abstract
Identification of blood-based biomarkers of Alzheimer's disease (AD) remains a challenge. Neuropathological studies have identified enlarged endosomes in post-mortem brains as the earliest cellular change associated to AD. Here the presence of enlarged endosomes was investigated in peripheral blood mononuclear cells from 48 biologically defined AD patients (25 with mild cognitive impairment and 23 with dementia (AD-D)), and 23 age-matched healthy controls using immunocytochemistry and confocal microscopy. The volume and number of endosomes were not significantly different between AD and controls. However, the percentage of cells containing enlarged endosomes was significantly higher in the AD-D group as compared with controls. Furthermore, endosomal volumes significantly correlated to [C(11)]PiB cortical index measured by positron emission tomography in the AD group, independently of the APOE genotype, but not to the levels of amyloid-beta, tau and phosphorylated tau measured in the cerebrospinal fluid. Importantly, we confirmed the presence of enlarged endosomes in fibroblasts from six unrelated AD-D patients as compared with five cognitively normal controls. This study is the first, to our knowledge, to report morphological alterations of the endosomal compartment in peripheral cells from AD patients correlated to amyloid load that will now be evaluated as a possible biomarker.
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Affiliation(s)
- F Corlier
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France
| | - I Rivals
- Équipe de Statistique Appliquée, ESPCI ParisTech, PSL Research University, INSERM UMRS 1158, Paris, France
| | - J Lagarde
- Neurologie de la Mémoire et du Langage, Service de Neurologie, Université Paris Descartes, Sorbonne Paris Cité, INSERM UMR S894, Centre Hospitalier Sainte Anne, Paris, France
| | - L Hamelin
- Neurologie de la Mémoire et du Langage, Service de Neurologie, Université Paris Descartes, Sorbonne Paris Cité, INSERM UMR S894, Centre Hospitalier Sainte Anne, Paris, France
| | - H Corne
- Neurologie de la Mémoire et du Langage, Service de Neurologie, Université Paris Descartes, Sorbonne Paris Cité, INSERM UMR S894, Centre Hospitalier Sainte Anne, Paris, France
| | - L Dauphinot
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France
| | - K Ando
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France
| | - J-C Cossec
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France
| | - G Fontaine
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France
| | - G Dorothée
- INSERM UMRS 938, Laboratoire Système Immunitaire et Maladies Conformationnelles, Hôpital Saint-Antoine, Paris, France,Université Pierre et Marie Curie, Université Paris 6, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Paris, France
| | - C Malaplate-Armand
- Laboratoire de Biochimie et Biologie Moléculaire, UF Oncologie—Endocrinologie—Neurobiologie, Hôpital Central, Centre Hospitalier Universitaire, Nancy, France,UR AFPA—USC 340, Equipe BFLA, Université de Lorraine, Nancy, France
| | - J-L Olivier
- Laboratoire de Biochimie et Biologie Moléculaire, UF Oncologie—Endocrinologie—Neurobiologie, Hôpital Central, Centre Hospitalier Universitaire, Nancy, France,UR AFPA—USC 340, Equipe BFLA, Université de Lorraine, Nancy, France
| | - B Dubois
- Institut de la mémoire et de la maladie d'Alzheimer, IMMA, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France
| | - M Bottlaender
- CEA (MB), DSV, Institut d'Imagerie Biomédicale, Service Hospitalier Frédéric Joliot, Orsay, France
| | - C Duyckaerts
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France,Laboratoire de Neuropathologie Escourolle, Hôpital de la Pitié-Salpêtrière, AP-HP, Paris, France
| | - M Sarazin
- Neurologie de la Mémoire et du Langage, Service de Neurologie, Université Paris Descartes, Sorbonne Paris Cité, INSERM UMR S894, Centre Hospitalier Sainte Anne, Paris, France
| | - M-C Potier
- UPMC University Paris 06, UMRS 1127, Sorbonne Universités, Paris, France,INSERM U 1127, Paris, France,ICM Research Centre, CNRS UMR 7225, Paris, France,ICM Research Centre, Group of Alzheimer's and Prion's diseases, CNRS UMR7225, INSERM URM975, UPMC, Hôpital de la Pitié-Salpêtrière, 47 Boulevard de l'Hôpital, 75013 Paris, France. E-mail:
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Neutrophil-to-Lymphocyte Ratio Is Associated with Impaired Interferon-Gamma Release to Phytohemagglutinin. PLoS One 2015; 10:e0125794. [PMID: 25961292 PMCID: PMC4427286 DOI: 10.1371/journal.pone.0125794] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/23/2015] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE The neutrophil-to-lymphocyte ratio (NLR) has been shown to predict adverse outcomes in several pathologic conditions. The majority of indeterminate interferon (IFN)-γ release assays were due to inadequate IFN-γ response to the phytohemagglutinin. We sought to study the value of NLR to predict an indeterminate result of QuantiFERON-TB Gold In-Tube (QFT-GIT) performed in routine laboratory practice. METHODS Results from 2,773 QFT-GIT assays were analyzed. Data collection included demographic data, the level of IFN-γ to nil, mitogen, and TB antigen of QFT-GIT, total WBC, and a differential count. We calculated the absolute neutrophil count, lymphocyte count, and NLR. RESULTS Of the total, 224 (8.1%) indeterminate results were observed. Twelve (1.8%) showed indeterminate results in the NLR range from 1.71 to 2.84, but 132 (19.2%) had indeterminate results in NLR ≥ 5.18 (p < 0.0001). The likelihood ratio for indeterminate results were 2.70 (95% CI, 2.36-3.08) in NLR ≥ 5.18 and 1.93 (95% CI, 1.64-2.27) in lymphocyte count ≤ 1050/μL. NLR and neutrophil count were independent predictors for indeterminate QFT-GIT result in multiple regression analysis. The IFN-γ response to PHA was negatively associated with NLR (r = -0.33, p < 0.001). CONCLUSION We showed that the NLR is an independent predictor of indeterminate QFT-GIT result. Low frequency of indeterminate results in group with normal NLR may imply the importance of a balance between two cellular compartments in physiological and pathological conditions.
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Association of neutrophil/lymphocyte ratio and retinal vein occlusion. Eur J Ophthalmol 2015; 25:343-6. [PMID: 25633622 DOI: 10.5301/ejo.5000570] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2015] [Indexed: 12/28/2022]
Abstract
PURPOSE To evaluate the association between neutrophil/lymphocyte ratio (NLR) and the development of retinal vein occlusion (RVO). METHODS Forty patients were included in the study. Forty age- and sex-matched healthy volunteers were recruited as the control group. The RVO diagnosis was made clinically, based on the findings of fundus examination. The NLR and file records of the patients and the control group were compared. RESULTS The mean age of patients was 64 ± 12 years. Neutrophil levels were higher in RVO patients compared to the control subjects (5.1 ± 1.9 vs 3.6 ± 1.0, p<0.001). Lymphocyte levels were lower in RVO patients compared with the control subjects (2.0 ± 0.7 vs 2.6 ± 0.9, p = 0.005). The NLR was significantly higher in RVO patients compared with the control subjects (3.0 ± 2.7 vs 1.5 ± 0.3, p<0.001). According to the receiver operator characteristics curve analysis, the optimal cutoff value of NLR to predict RVO was >1.89, with 72.5% sensitivity and 100% specificity. CONCLUSIONS The current study demonstrated that higher NLR was associated with the development of RVO. The NLR may be used as a predictive tool for identifying risk for RVO.
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