1
|
Hall S, Parr BA, Hussey S, Anoopkumar-Dukie S, Arora D, Grant GD. The neurodegenerative hypothesis of depression and the influence of antidepressant medications. Eur J Pharmacol 2024; 983:176967. [PMID: 39222740 DOI: 10.1016/j.ejphar.2024.176967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 08/27/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Depression is a complex neurological disease that holds many theories on its aetiology and pathophysiology. The monoamine strategy of treating depression with medications to increase levels of monoamines in the (extra)synapse, primarily through the inhibition of monoamine transporters, does not always work, as seen in patients that lack a response to multiple anti-depressant exposures, as well as a lack of depressive symptoms in healthy volunteers exposed to monoamine reduction. Depression is increasingly being understood not as a single condition, but as a complex interplay of adaptations in various systems, including inflammatory responses and neurotransmission pathways in the brain. This understanding has led to the development of the neurodegenerative hypothesis of depression. This hypothesis, which is gaining widespread acceptance posits that both oxidative stress and inflammation play significant roles in the pathophysiology of depression. This article is a review of the literature focused on neuroinflammation in depression, as well as summarised studies of anti-inflammatory and antioxidant effects of antidepressants.
Collapse
Affiliation(s)
- Susan Hall
- School of Pharmacy and Medical Sciences, Griffith University Gold Coast Campus, Southport, 4222, Australia.
| | - Brie-Anne Parr
- School of Pharmacy and Medical Sciences, Griffith University Gold Coast Campus, Southport, 4222, Australia
| | - Sarah Hussey
- School of Pharmacy and Medical Sciences, Griffith University Gold Coast Campus, Southport, 4222, Australia
| | | | - Devinder Arora
- School of Pharmacy and Medical Sciences, Griffith University Gold Coast Campus, Southport, 4222, Australia
| | - Gary D Grant
- School of Pharmacy and Medical Sciences, Griffith University Gold Coast Campus, Southport, 4222, Australia
| |
Collapse
|
2
|
Campanale A, Inserra A, Comai S. Therapeutic modulation of the kynurenine pathway in severe mental illness and comorbidities: A potential role for serotonergic psychedelics. Prog Neuropsychopharmacol Biol Psychiatry 2024; 134:111058. [PMID: 38885875 DOI: 10.1016/j.pnpbp.2024.111058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/15/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Mounting evidence points towards a crucial role of the kynurenine pathway (KP) in the altered gut-brain axis (GBA) balance in severe mental illness (SMI, namely depression, bipolar disorder, and schizophrenia) and cardiometabolic comorbidities. Preliminary evidence shows that serotonergic psychedelics and their analogues may hold therapeutic potential in addressing the altered KP in the dysregulated GBA in SMI and comorbidities. In fact, aside from their effects on mood, psychedelics elicit therapeutic improvement in preclinical models of obesity, metabolic syndrome, and vascular inflammation, which are highly comorbid with SMI. Here, we review the literature on the therapeutic modulation of the KP in the dysregulated GBA in SMI and comorbidities, and the potential application of psychedelics to address the altered KP in the brain and systemic dysfunction underlying SMI and comorbidities. Psychedelics might therapeutically modulate the KP in the altered GBA in SMI and comorbidities either directly, via altering the metabolic pathway by influencing the rate-limiting enzymes of the KP and affecting the levels of available tryptophan, or indirectly, by affecting the gut microbiome, gut metabolome, metabolism, and the immune system. Despite promising preliminary evidence, the mechanisms and outcomes of the KP modulation with psychedelics in SMI and systemic comorbidities remain largely unknown and require further investigation. Several concerns are discussed surrounding the potential side effects of this approach in specific cohorts of individuals with SMI and systemic comorbidities.
Collapse
Affiliation(s)
| | - Antonio Inserra
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Stefano Comai
- Department of Psychiatry, McGill University, Montreal, QC, Canada; Department of Pharmaceutical and Pharmacological Sciences, University of Padova, PD, Italy.; IRCCS San Raffaele Scientific Institute, Milan, Italy; Department of Biomedical Sciences, University of Padua, Padua, Italy.
| |
Collapse
|
3
|
Wei W, Cheng B, Yang X, Chu X, He D, Qin X, Zhang N, Zhao Y, Shi S, Cai Q, Hui J, Wen Y, Liu H, Jia Y, Zhang F. Single-cell multiomics analysis reveals cell/tissue-specific associations in bipolar disorder. Transl Psychiatry 2024; 14:323. [PMID: 39107272 PMCID: PMC11303399 DOI: 10.1038/s41398-024-03044-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 07/17/2024] [Accepted: 07/30/2024] [Indexed: 08/09/2024] Open
Abstract
This study investigates the cellular origin and tissue heterogeneity in bipolar disorder (BD) by integrating multiomics data. Four distinct datasets were employed, including single-cell RNA sequencing (scRNA-seq) data (embryonic and fetal brain, n = 8, 1,266 cells), BD Assay for Transposase-Accessible Chromatin using sequencing (ATAC-seq) data (adult brain, n = 210), BD bulk RNA-seq data (adult brain, n = 314), and BD genome-wide association study (GWAS) summary data (n = 413,466). The integration of scRNA-seq data with multiomics data relevant to BD was accomplished using the single-cell disease relevance score (scDRS) algorithm. We have identified a novel brain cell cluster named ADCY1, which exhibits distinct genetic characteristics. From a high-resolution genetic perspective, glial cells emerge as the primary cytopathology associated with BD. Specifically, astrocytes were significantly related to BD at the RNA-seq level, while microglia showed a strong association with BD across multiple panels, including the transcriptome-wide association study (TWAS), ATAC-seq, and RNA-seq. Additionally, oligodendrocyte precursor cells displayed a significant association with BD in both ATAC-seq and RNA-seq panel. Notably, our investigation of brain regions affected by BD revealed significant associations between BD and all three types of glial cells in the dorsolateral prefrontal cortex (DLPFC). Through comprehensive analyses, we identified several BD-associated genes, including CRMP1, SYT4, UCHL1, and ZBTB18. In conclusion, our findings suggest that glial cells, particularly in specific brain regions such as the DLPFC, may play a significant role in the pathogenesis of BD. The integration of multiomics data has provided valuable insights into the etiology of BD, shedding light on potential mechanisms underlying this complex psychiatric disorder.
Collapse
Affiliation(s)
- Wenming Wei
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Bolun Cheng
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xuena Yang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoge Chu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Dan He
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Xiaoyue Qin
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Na Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yijing Zhao
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Sirong Shi
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Qingqing Cai
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Jingni Hui
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yan Wen
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Huan Liu
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Yumeng Jia
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education of China, Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China.
| |
Collapse
|
4
|
van Zundert SKM, van Rossem L, Mirzaian M, Griffioen PH, Willemsen SP, van Schaik RHN, Steegers-Theunissen RPM. Periconceptional Non-medical Maternal Determinants Influence the Tryptophan Metabolism: The Rotterdam Periconceptional Cohort (Predict Study). Int J Tryptophan Res 2024; 17:11786469241257816. [PMID: 38873365 PMCID: PMC11171438 DOI: 10.1177/11786469241257816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 05/08/2024] [Indexed: 06/15/2024] Open
Abstract
Background The vital role of the maternal tryptophan (TRP) metabolism in maternal health and pregnancy is well established. However, non-medical maternal determinants influencing the TRP metabolism have been poorly investigated. We hypothesise that periconceptional maternal non-medical determinants alter the TRP metabolism, affecting both kynurenine (KP) and serotonin pathway (SP) metabolite concentrations. Therefore, we investigated the influence of non-medical maternal determinants on the TRP metabolism during the periconception period. Methods About 1916 pregnancies were included from the Rotterdam Periconceptional Cohort between November 2010 and December 2020. Data on periconceptional non-medical maternal determinants were collected through questionnaires. Serum samples were collected at 8.5 (SD = 1.6) weeks of gestation and TRP, kynurenine (KYN), 5-hydroxytryptophan (5-HTP), 5-HT (5-hydroxytryptamine) and 5-hydroxyindole acetic acid (5-HIAA) were determined using validated liquid chromatography (tandem) mass spectrometry. Mixed models were used to determine associations between periconceptional non-medical maternal determinants and these metabolites. Results In total 11 periconceptional non-medical maternal determinants were identified. Protein intake was positively associated with TRP (β = .12, 95% CI = 0.07-0.17), while age, energy intake and body mass index (BMI) (β = -.24, 95% CI = -0.37 to -0.10) were negatively associated with TRP. Age, BMI and total homocysteine were associated with higher KYN, whereas non-western geographical origin was associated with lower KYN (β = -.09, 95% CI = -0.16 to -0.03). Protein intake and total homocysteine (β = .07, 95% CI = 0.03-0.11) had a positive association with 5-HTP, while a negative association was found for energy intake. A non-western geographical origin and drug use were associated with higher 5-HT, and BMI with lower 5-HT (β = -6.32, 95% CI = -10.26 to -2.38). Age was positively associated with 5-HIAA (β = .92, 95% CI = 0.29-1.56), and BMI negatively. Conclusions Periconceptional non-medical maternal determinants, including age, geographical origin, drug use, energy and protein intake, BMI and total homocysteine, influence KP and SP metabolite concentrations.
Collapse
Affiliation(s)
- Sofie KM van Zundert
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
- Department of Clinical Chemistry, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Lenie van Rossem
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Mina Mirzaian
- Department of Clinical Chemistry, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Pieter H Griffioen
- Department of Clinical Chemistry, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Sten P Willemsen
- Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
- Department of Biostatistics, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Ron HN van Schaik
- Department of Clinical Chemistry, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | | |
Collapse
|
5
|
Brown SJ, Christofides K, Weissleder C, Huang XF, Shannon Weickert C, Lim CK, Newell KA. Sex- and suicide-specific alterations in the kynurenine pathway in the anterior cingulate cortex in major depression. Neuropsychopharmacology 2024; 49:584-592. [PMID: 37735504 PMCID: PMC10789861 DOI: 10.1038/s41386-023-01736-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
Abstract
Major depressive disorder (MDD) is a serious psychiatric disorder that in extreme cases can lead to suicide. Evidence suggests that alterations in the kynurenine pathway (KP) contribute to the pathology of MDD. Activation of the KP leads to the formation of neuroactive metabolites, including kynurenic acid (KYNA) and quinolinic acid (QUIN). To test for changes in the KP, postmortem anterior cingulate cortex (ACC) was obtained from the National Institute of Health NeuroBioBank. Gene expression of KP enzymes and relevant neuroinflammatory markers were investigated via RT-qPCR (Fluidigm) and KP metabolites were measured using liquid chromatography-mass spectrometry in tissue from individuals with MDD (n = 44) and matched nonpsychiatric controls (n = 36). We report increased IL6 and IL1B mRNA in MDD. Subgroup analysis found that female MDD subjects had significantly decreased KYNA and a trend decrease in the KYNA/QUIN ratio compared to female controls. In addition, MDD subjects that died by suicide had significantly decreased KYNA in comparison to controls and MDD subjects that did not die by suicide, while subjects that did not die by suicide had increased KYAT2 mRNA, which we hypothesise may protect against a decrease in KYNA. Overall, we found sex- and suicide-specific alterations in the KP in the ACC in MDD. This is the first molecular evidence in the brain of subgroup specific changes in the KP in MDD, which not only suggests that treatments aimed at upregulation of the KYNA arm in the brain may be favourable for female MDD sufferers but also might assist managing suicidal behaviour.
Collapse
Affiliation(s)
- Samara J Brown
- School of Medical, Indigenous and Health Sciences and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia.
| | | | - Christin Weissleder
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Mechanism and Therapy of Genetic Brain Diseases, Institut Imagine, Paris, France
| | - Xu-Feng Huang
- School of Medical, Indigenous and Health Sciences and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Cynthia Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Department of Neuroscience & Physiology, Upstate Medical University, Syracuse, NY, USA
- Discipline of Psychiatry and Mental Health, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Chai K Lim
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Kelly A Newell
- School of Medical, Indigenous and Health Sciences and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia.
| |
Collapse
|
6
|
Cavaleri D, Crocamo C, Morello P, Bartoli F, Carrà G. The Kynurenine Pathway in Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis of Blood Concentrations of Tryptophan and Its Catabolites. J Clin Med 2024; 13:583. [PMID: 38276089 PMCID: PMC10815986 DOI: 10.3390/jcm13020583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/11/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Preliminary evidence shows that the kynurenine pathway (KP) may be altered in attention-deficit/hyperactivity disorder (ADHD). We thus conducted a systematic review and meta-analysis exploring the peripheral blood concentrations of tryptophan catabolites (TRYCATs) in people with ADHD. We searched the main electronic databases up to 7th December 2023. Standardised mean differences (SMDs) with 95% confidence intervals (95%CIs) were used to compare TRYCAT concentrations between participants with ADHD and healthy controls (HCs). We included eight studies. Random-effects meta-analyses found higher kynurenine (SMD = 0.56; 95%CI: 0.04 to 1.08; p = 0.033; I2 = 90.3%) and lower kynurenic acid (SMD = -0.33; 95%CI: -0.49 to -0.17; p < 0.001; I2 = 0%) concentrations in people with ADHD compared to HCs. Additional analyses on drug-free children with ADHD showed higher tryptophan (SMD = 0.31; 95%CI: 0.11 to 0.50; p = 0.002; I2 = 0%) and kynurenine (SMD = 0.74; 95%CI: 0.30 to 1.17; p < 0.001; I2 = 76.5%), as well as lower kynurenic acid (SMD = -0.37; 95%CI: -0.59 to -0.15; p < 0.001; I2 = 0%) blood levels, as compared to HCs. Despite some limitations, our work provides preliminary evidence on KP alterations in ADHD that may suggest decreased neuroprotection. Further research is needed to clarify the role of the KP in ADHD.
Collapse
Affiliation(s)
- Daniele Cavaleri
- Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; (D.C.); (C.C.); (P.M.); (F.B.)
| | - Cristina Crocamo
- Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; (D.C.); (C.C.); (P.M.); (F.B.)
| | - Pietro Morello
- Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; (D.C.); (C.C.); (P.M.); (F.B.)
| | - Francesco Bartoli
- Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; (D.C.); (C.C.); (P.M.); (F.B.)
| | - Giuseppe Carrà
- Department of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; (D.C.); (C.C.); (P.M.); (F.B.)
- Division of Psychiatry, University College London, Maple House 149, London W1T 7BN, UK
| |
Collapse
|
7
|
Hazrati E, Eftekhar SP, Mosaed R, Shiralizadeh Dini S, Namazi M. Understanding the kynurenine pathway: A narrative review on its impact across chronic pain conditions. Mol Pain 2024; 20:17448069241275097. [PMID: 39093627 PMCID: PMC11331475 DOI: 10.1177/17448069241275097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024] Open
Abstract
Chronic pain is a debilitating symptom with a significant negative impact on the quality of life and socioeconomic status, particularly among adults and the elderly. Major Depressive Disorder (MDD) stands out as one of the most important comorbid disorders accompanying chronic pain. The kynurenine pathway serves as the primary route for tryptophan degradation and holds critical significance in various biological processes, including the regulation of neurotransmitters, immune responses, cancer development, metabolism, and inflammation. This review encompasses key research studies related to the kynurenine pathway in the context of headache, neuropathic pain, gastrointestinal disorders, fibromyalgia, chronic fatigue syndrome, and MDD. Various metabolites produced in the kynurenine pathway, such as kynurenic acid and quinolinic acid, exhibit neuroprotective and neurotoxic effects, respectively. Recent studies have highlighted the significant involvement of kynurenine and its metabolites in the pathophysiology of pain. Moreover, pharmacological interventions targeting the regulation of the kynurenine pathway have shown therapeutic promise in pain management. Understanding the underlying mechanisms of this pathway presents an opportunity for developing personalized, innovative, and non-opioid approaches to pain treatment. Therefore, this narrative review explores the role of the kynurenine pathway in various chronic pain disorders and its association with depression and chronic pain.
Collapse
Affiliation(s)
- Ebrahim Hazrati
- Trauma and Surgery Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Seyed Parsa Eftekhar
- Trauma and Surgery Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Reza Mosaed
- Trauma and Surgery Research Center, AJA University of Medical Sciences, Tehran, Iran
| | | | - Mehrshad Namazi
- Trauma and Surgery Research Center, AJA University of Medical Sciences, Tehran, Iran
- Clinical Biomechanics and Ergonomics Research Center, AJA University of Medical Sciences, Tehran, Iran
| |
Collapse
|
8
|
Bransfield RC, Mao C, Greenberg R. Microbes and Mental Illness: Past, Present, and Future. Healthcare (Basel) 2023; 12:83. [PMID: 38200989 PMCID: PMC10779437 DOI: 10.3390/healthcare12010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024] Open
Abstract
A review of the association between microbes and mental illness is performed, including the history, relevant definitions, infectious agents associated with mental illnesses, complex interactive infections, total load theory, pathophysiology, psychoimmunology, psychoneuroimmunology, clinical presentations, early-life infections, clinical assessment, and treatment. Perspectives on the etiology of mental illness have evolved from demonic possession toward multisystem biologically based models that include gene expression, environmental triggers, immune mediators, and infectious diseases. Microbes are associated with a number of mental disorders, including autism, schizophrenia, bipolar disorder, depressive disorders, and anxiety disorders, as well as suicidality and aggressive or violent behaviors. Specific microbes that have been associated or potentially associated with at least one of these conditions include Aspergillus, Babesia, Bartonella, Borna disease virus, Borrelia burgdorferi (Lyme disease), Candida, Chlamydia, coronaviruses (e.g., SARS-CoV-2), Cryptococcus neoformans, cytomegalovirus, enteroviruses, Epstein-Barr virus, hepatitis C, herpes simplex virus, human endogenous retroviruses, human immunodeficiency virus, human herpesvirus-6 (HHV-6), human T-cell lymphotropic virus type 1, influenza viruses, measles virus, Mycoplasma, Plasmodium, rubella virus, Group A Streptococcus (PANDAS), Taenia solium, Toxoplasma gondii, Treponema pallidum (syphilis), Trypanosoma, and West Nile virus. Recognition of the microbe and mental illness association with the development of greater interdisciplinary research, education, and treatment options may prevent and reduce mental illness morbidity, disability, and mortality.
Collapse
Affiliation(s)
- Robert C. Bransfield
- Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
- Hackensack Meridian School of Medicine, Nutey, NJ 07110, USA
| | | | | |
Collapse
|
9
|
Sheibani M, Shayan M, Khalilzadeh M, Soltani ZE, Jafari-Sabet M, Ghasemi M, Dehpour AR. Kynurenine pathway and its role in neurologic, psychiatric, and inflammatory bowel diseases. Mol Biol Rep 2023; 50:10409-10425. [PMID: 37848760 DOI: 10.1007/s11033-023-08859-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/27/2023] [Indexed: 10/19/2023]
Abstract
Tryptophan metabolism along the kynurenine pathway is of central importance for the immune function. It prevents hyperinflammation and induces long-term immune tolerance. Accumulating evidence also demonstrates cytoprotective and immunomodulatory properties of kynurenine pathway in conditions affecting either central or peripheral nervous system as well as other conditions such as inflammatory bowel disease (IBD). Although multilevel association exists between the inflammatory bowel disease (IBD) and various neurologic (e.g., neurodegenerative) disorders, it is believed that the kynurenine pathway plays a pivotal role in the development of both IBD and neurodegenerative disorders. In this setting, there is strong evidence linking the gut-brain axis with intestinal dysfunctions including IBD which is consistent with the fact that the risk of neurodegenerative diseases is higher in IBD patients. This review aims to highlight the role of kynurenine metabolic pathway in various neurologic and psychiatric diseases as well as relationship between IBD and neurodegenerative disorders in the light of the kynurenine metabolic pathway.
Collapse
Affiliation(s)
- Mohammad Sheibani
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Razi Drug Research Centre, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Shayan
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, MS, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mina Khalilzadeh
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, MS, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ebrahim Soltani
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, MS, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Jafari-Sabet
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Razi Drug Research Centre, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Ghasemi
- Department of Neurology, Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA, 01803, USA.
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, MS, Iran.
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
10
|
Wang Z, Huang S, Li L, Wen Y, Shang D. Kynurenine metabolite changes in individuals with alcohol use disorder: A systematic review and meta-analysis. Drug Alcohol Depend 2023; 249:110821. [PMID: 37327508 DOI: 10.1016/j.drugalcdep.2023.110821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/19/2023] [Accepted: 06/05/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE Growing evidence suggests an abnormal metabolism of kynurenine in individuals with alcohol use disorder (AUD). This systematic review and meta-analysis was aimed at assessing the possible differences in kynurenine metabolites between individuals with AUD and controls. METHODS We searched PubMed, Embase, and Web of Science databases and included any clinical studies comparing the peripheral blood levels of at least one metabolite, between individuals with AUD and controls without AUD. Random-effects meta-analyses were conducted to generate pooled standardized mean differences (SMD). Subgroup analyses and meta-regression analyses were conducted. RESULTS A total of seven eligible studies with 572 participants were included. The peripheral blood levels of kynurenine (SMD = 0.58; p = 0.004) along with the ratio of kynurenine and tryptophan (SMD = 0.73; p = 0.002) were higher in individuals with AUD, while kynurenic acid levels (SMD = -0.81; p = 0.003) were reduced in individuals with AUD compared to controls. The peripheral blood levels of tryptophan along with the ratio of kynurenic acid and kynurenine were unaltered. Subgroup analyses confirmed these results. CONCLUSION Our results suggested a shift in the tryptophan metabolism to the kynurenine pathway and a down-regulation of the potentially neuroprotective kynurenic acid in individuals with AUD.
Collapse
Affiliation(s)
- Zhanzhang Wang
- Department of Pharmacy, the Affiliated Brain Hospital of Guangzhou Medical University, 36 Mingxin Road, Guangzhou510370, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou510370, China
| | - Shanqing Huang
- Department of Pharmacy, the Affiliated Brain Hospital of Guangzhou Medical University, 36 Mingxin Road, Guangzhou510370, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou510370, China
| | - Lu Li
- Department of Pharmacy, the Affiliated Brain Hospital of Guangzhou Medical University, 36 Mingxin Road, Guangzhou510370, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou510370, China
| | - Yuguan Wen
- Department of Pharmacy, the Affiliated Brain Hospital of Guangzhou Medical University, 36 Mingxin Road, Guangzhou510370, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou510370, China.
| | - Dewei Shang
- Department of Pharmacy, the Affiliated Brain Hospital of Guangzhou Medical University, 36 Mingxin Road, Guangzhou510370, China; Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou510370, China.
| |
Collapse
|
11
|
Han K, Ji L, Xie Q, Liu L, Wu X, He L, Shi Y, Zhang R, He G, Dong Z, Yu T. Different roles of microbiota and genetics in the prediction of treatment response in major depressive disorder. J Psychiatr Res 2023; 161:402-411. [PMID: 37023596 DOI: 10.1016/j.jpsychires.2023.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 04/08/2023]
Abstract
The roles of gut microbiota and susceptibility genes in patients with major depression disorder (MDD) are not well understood. Examining the microbiome and host genetics might be helpful for clinical decision-making. Patients with MDD were recruited in this study and subsequently treated for eight weeks. We identified the differences between the population with a response after two weeks and those with a response after eight weeks. The factors that were significantly correlated with efficacy were used to predict the treatment response. The differences in the importance of microbiota and genetics in prediction were analyzed. Our study identified rs58010457 as a potentially key locus affecting the treatment effect. Different microbiota and enriched pathways might play different roles in the response after two and eight weeks. We found that the area under the curve (AUC) value was greater than 0.8 for both random forest models. The contribution of different components to the AUC was evaluated by removing genetic information, microbiota abundance, and pathway data. The gut microbiome was an important predictor of the response after eight weeks, while genetics was an important predictor of the response after two weeks. These results suggested a dynamic effect of interaction among genetics and gut microbes on treatment. Furthermore, these results provide new guidance for clinical decisions: in cases of inadequate treatment effects after two weeks, the composition of the intestinal flora can be improved by diet therapy, which could ultimately affect the efficacy.
Collapse
Affiliation(s)
- Ke Han
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Lei Ji
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Qinglian Xie
- Out-patient Department of West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Liangjie Liu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Xi Wu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Lin He
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Yi Shi
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China
| | - Rong Zhang
- Shanghai Center for Women and Children's Health, 339 Luding Road, Shanghai, 200062, China
| | - Guang He
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China.
| | - Zaiquan Dong
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Tao Yu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, 200030, China; Shanghai Center for Women and Children's Health, 339 Luding Road, Shanghai, 200062, China.
| |
Collapse
|
12
|
Simon MS, Arteaga-Henríquez G, Fouad Algendy A, Siepmann T, Illigens BMW. Anti-Inflammatory Treatment Efficacy in Major Depressive Disorder: A Systematic Review of Meta-Analyses. Neuropsychiatr Dis Treat 2023; 19:1-25. [PMID: 36636142 PMCID: PMC9830720 DOI: 10.2147/ndt.s385117] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/13/2022] [Indexed: 01/06/2023] Open
Abstract
Purpose Immune imbalances in major depressive disorder (MDD) have been targeted by anti-inflammatory treatment approaches in clinical trials to increase responsiveness to therapy. However, even after several meta-analyses, no translation of evidence into clinical practice has taken place. We performed a systematic review to evaluate meta-analytic evidence of randomized controlled trials on the use of anti-inflammatory agents for MDD to summarize efficacy estimates and elucidate shortcomings. Methods Pooled effect estimates and heterogeneity indices were primary outcomes. Characteristics of the included meta-analyses were extracted. Scientific quality of meta-analyses was assessed using the Revised Assessment of Multiple Systematic Reviews (R-AMSTAR). Results N=20 meta-analyses met the eligibility criteria. Study characteristics like outcome scales, composition of patient populations, and add-on or monotherapy regimen varied very little for celecoxib studies, varied little for minocycline studies, and were rather variable for omega 3 fatty acids studies. R-AMSTAR scores ranged from 26 to 39 out of 44 points indicating variable quality, where a comprehensive literature search was the strongest and the consideration of scientific quality in the conclusions was the weakest domain across all meta-analyses. For minocycline and celecoxib, superiority was demonstrated with medium to large effect size with substantial heterogeneity and with large to very large effect size with negligible heterogeneity, respectively. For omega 3 fatty acids, superiority was also demonstrated with mainly small and medium effect sizes with substantial heterogeneity. However, for minocycline and omega 3 fatty acids, non-significant meta-analyses were found also. Conclusion Even in our synthesized approach, no clear recommendations could be derived on the use of anti-inflammatory treatment for MDD due to several critical aspects like heterogeneity, diversity of patient populations, treatment regimen, and outcomes, and limited scientific quality. However, we observed clear inter-substance differences with meta-analytic evidence being strongest for celecoxib and weakest for omega 3 fatty acids.
Collapse
Affiliation(s)
- Maria S Simon
- Division of Health Care Sciences, Dresden International University, Dresden, Saxony, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig-Maximilians-University, Munich, Bavaria, Germany
| | - Gara Arteaga-Henríquez
- Department of Psychiatry, Hospital Universitari Vall d’Hebron, Vall d’Hebron Research Institute (VHIR), Vall d’Hebron Barcelona Hospital Campus, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain
| | - Ahmed Fouad Algendy
- Division of Health Care Sciences, Dresden International University, Dresden, Saxony, Germany
- Clinical Pharmacy, Geriatric Department, Rumailah Hospital, Hamad Medical Corporation, Doha, Qatar
| | - Timo Siepmann
- Division of Health Care Sciences, Dresden International University, Dresden, Saxony, Germany
- Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Saxony, Germany
| | - Ben M W Illigens
- Division of Health Care Sciences, Dresden International University, Dresden, Saxony, Germany
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
13
|
Mingoti MED, Bertollo AG, de Oliveira T, Ignácio ZM. Stress and Kynurenine-Inflammation Pathway in Major Depressive Disorder. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1411:163-190. [PMID: 36949310 DOI: 10.1007/978-981-19-7376-5_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Major depressive disorder (MDD) is one of the most prevalent disorders and causes severe damage to people's quality of life. Lifelong stress is one of the major villains in triggering MDD. Studies have shown that both stress and MDD, especially the more severe conditions of the disorder, are associated with inflammation and neuroinflammation and the relationship to an imbalance in tryptophan metabolism towards the kynurenine pathway (KP) through the enzymes indoleamine-2,3-dioxygenase (IDO), which is mainly stimulated by pro-inflammatory cytokines and tryptophan-2,3-dioxygenase (TDO) which is activated primarily by glucocorticoids. Considering that several pathophysiological mechanisms of MDD underlie or interact with biological processes from KP metabolites, this chapter addresses and discusses the function of these mechanisms. Activities triggered by stress and the hypothalamic-pituitary-adrenal (HPA) axis and immune and inflammatory processes, in addition to epigenetic phenomena and the gut-brain axis (GBA), are addressed. Finally, studies on the function and mechanisms of physical exercise in the KP metabolism and MDD are pointed out and discussed.
Collapse
Affiliation(s)
- Maiqueli Eduarda Dama Mingoti
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Amanda Gollo Bertollo
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Tácio de Oliveira
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Zuleide Maria Ignácio
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| |
Collapse
|
14
|
Pivac N, Vuic B, Sagud M, Nedic Erjavec G, Nikolac Perkovic M, Konjevod M, Tudor L, Svob Strac D, Uzun S, Kozumplik O, Uzun S, Mimica N. PTSD, Immune System, and Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1411:225-262. [PMID: 36949313 DOI: 10.1007/978-981-19-7376-5_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Posttraumatic stress disorder (PTSD) is a severe trauma and stress-related disorder associated with different somatic comorbidities, especially cardiovascular and metabolic disorders, and with chronic low-grade inflammation. Altered balance of the hypothalamic-pituitary-adrenal (HPA) axis, cytokines and chemokines, C-reactive protein, oxidative stress markers, kynurenine pathways, and gut microbiota might be involved in the alterations of certain brain regions regulating fear conditioning and memory processes, that are all altered in PTSD. In addition to the HPA axis, the gut microbiota maintains the balance and interaction of the immune, CNS, and endocrine pathways forming the gut-brain axis. Disbalance in the HPA axis, gut-brain axis, oxidative stress pathways and kynurenine pathways, altered immune signaling and disrupted homeostasis, as well as the association of the PTSD with the inflammation and disrupted cognition support the search for novel strategies for treatment of PTSD. Besides potential anti-inflammatory treatment, dietary interventions or the use of beneficial bacteria, such as probiotics, can potentially improve the composition and the function of the bacterial community in the gut. Therefore, bacterial supplements and controlled dietary changes, with exercise, might have beneficial effects on the psychological and cognitive functions in patients with PTSD. These new treatments should be aimed to attenuate inflammatory processes and consequently to reduce PTSD symptoms but also to improve cognition and reduce cardio-metabolic disorders associated so frequently with PTSD.
Collapse
Affiliation(s)
- Nela Pivac
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia.
| | - Barbara Vuic
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Marina Sagud
- Department of Psychiatry, University Hospital Center Zagreb, Zagreb, Croatia
- University of Zagreb School of Medicine, Zagreb, Croatia
| | - Gordana Nedic Erjavec
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Matea Nikolac Perkovic
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Marcela Konjevod
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Lucija Tudor
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Dubravka Svob Strac
- Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Suzana Uzun
- University of Zagreb School of Medicine, Zagreb, Croatia
- University Psychiatric Hospital Vrapce, Zagreb, Croatia
| | | | - Sandra Uzun
- Department for Anesthesiology, Reanimatology, and Intensive Care, University Hospital Center Zagreb, Zagreb, Croatia
| | - Ninoslav Mimica
- University of Zagreb School of Medicine, Zagreb, Croatia
- University Psychiatric Hospital Vrapce, Zagreb, Croatia
| |
Collapse
|
15
|
Simon MS, Weidinger E, Leitner B, Kisla Y, Niedeggen J, Thaler P, Zaudig M, Vorderholzer U, Schwarz M, Müller N. Tryptophan metabolites predict response after cognitive behavioral therapy for depression: a single-arm trial. JOURNAL OF AFFECTIVE DISORDERS REPORTS 2023. [DOI: 10.1016/j.jadr.2023.100464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
|
16
|
Pisanu C, Squassina A, Paribello P, Dall’Acqua S, Sut S, Nasini S, Bertazzo A, Congiu D, Meloni A, Garzilli M, Guiso B, Suprani F, Pulcinelli V, Iaselli MN, Pinna I, Somaini G, Arru L, Corrias C, Pinna F, Carpiniello B, Comai S, Manchia M. Investigation of Genetic Variants Associated with Tryptophan Metabolite Levels via Serotonin and Kynurenine Pathways in Patients with Bipolar Disorder. Metabolites 2022; 12:1127. [PMID: 36422266 PMCID: PMC9694761 DOI: 10.3390/metabo12111127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 12/20/2023] Open
Abstract
The kynurenine pathway (KP) may play a role in the pathophysiology of bipolar disorder (BD). We conducted a genome-wide association study (GWAS) to identify genetic variants associated with the plasma levels of the metabolites of tryptophan (TRP) via the serotonin (5-HT) and kynurenine (KYN) pathways in 44 patients with BD and 45 healthy controls. We assessed whether variants that were differentially associated with metabolite levels based on the diagnostic status improved the prediction accuracy of BD using penalized regression approaches. We identified several genetic variants that were significantly associated with metabolites (5-HT, 5-hydroxytryptophan (5-HTP), TRP, and quinolinic acid (QA) or metabolite ratios (5-HTP/TRP and KYN/TRP) and for which the diagnostic status exerted a significant effect. The inclusion of genetic variants led to increased accuracy in the prediction of the BD diagnostic status. Specifically, we obtained an accuracy of 0.77 using Least Absolute Shrinkage and Selection Operator (LASSO) regression. The predictors retained as informative in this model included body mass index (BMI), the levels of TRP, QA, and 5-HT, the 5-HTP/TRP ratio, and genetic variants associated with the levels of QA (rs6827515, rs715692, rs425094, rs4645874, and rs77048355) and TRP (rs292212) or the 5-HTP/TRP ratio (rs7902231). In conclusion, our study identified statistically significant associations between metabolites of TRP via the 5-HT and KYN pathways and genetic variants at the genome-wide level. The discriminative performance of penalized regression models incorporating clinical, genetic, and metabolic predictors warrants a follow-up analysis of this panel of determinants.
Collapse
Affiliation(s)
- Claudia Pisanu
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Cagliari, Italy
| | - Alessio Squassina
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Cagliari, Italy
| | - Pasquale Paribello
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Stefano Dall’Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padua, Italy
| | - Stefania Sut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padua, Italy
| | - Sofia Nasini
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padua, Italy
| | - Antonella Bertazzo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padua, Italy
| | - Donatella Congiu
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Cagliari, Italy
| | - Anna Meloni
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Cagliari, Italy
| | - Mario Garzilli
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Beatrice Guiso
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Federico Suprani
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Vittoria Pulcinelli
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Maria Novella Iaselli
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Ilaria Pinna
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Giulia Somaini
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Laura Arru
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Carolina Corrias
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Federica Pinna
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Bernardo Carpiniello
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
| | - Stefano Comai
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padua, Italy
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
- San Raffaele Scientific Institute, 20132 Milano, Italy
- Department of Psychiatry, McGill University, Montreal, QC H3A 1A1, Canada
| | - Mirko Manchia
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, 09121 Cagliari, Italy
- Unit of Psychiatry, Department of Medical Sciences and Public Health, University of Cagliari, 09121 Cagliari, Italy
- Department of Pharmacology, Dalhousie University, Halifax, NS B3H 0A2, Canada
| |
Collapse
|
17
|
Bartoli F, Cioni RM, Cavaleri D, Callovini T, Crocamo C, Misiak B, Savitz JB, Carrà G. The association of kynurenine pathway metabolites with symptom severity and clinical features of bipolar disorder: An overview. Eur Psychiatry 2022; 65:e82. [PMID: 36366795 PMCID: PMC9724221 DOI: 10.1192/j.eurpsy.2022.2340] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The balance between neurotoxic and neuroprotective effects of kynurenine pathway (KP) components has been recently proposed as a key element in the pathophysiology of bipolar disorder (BD) and related mood episodes. This comprehensive overview explored the link of KP with symptom severity and other clinical features of BD. METHODS We searched Medline, Embase, and PsycInfo electronic databases for studies assessing the association of peripheral and/or central concentrations of KP metabolites with putative clinical features, including symptom severity and other clinical domains in BD. RESULTS We included the findings of 13 observational studies investigating the possible variations of KP metabolites according to symptom severity, psychotic features, suicidal behaviors, and sleep disturbances in BD. Studies testing the relationship between KP metabolites and depression severity generated mixed and inconsistent findings. No statistically significant correlations with manic symptoms were found. Moreover, heterogeneous variations of the KP across different clinical domains were shown. Few available studies found (a) higher levels of cerebrospinal fluid kynurenic acid and lower of plasma quinolinic acid in BD with psychotic features, (b) lower central and peripheral picolinic acid levels in BD with suicide attempts, and (c) no significant correlations between KP metabolites and BD-related sleep disturbances. CONCLUSIONS An imbalance of KP metabolism toward the neurotoxic branches is likely to occur in people with BD, though evidence on variations according to specific clinical features of BD is less clear. Additional research is needed to clarify the role of KP in the etiopathogenesis of BD and related clinical features.
Collapse
Affiliation(s)
- Francesco Bartoli
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Riccardo M Cioni
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Daniele Cavaleri
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Tommaso Callovini
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Cristina Crocamo
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Błażej Misiak
- Department of Psychiatry, Wrocław Medical University, Wrocław, Poland
| | - Jonathan B Savitz
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA.,Oxley College of Health Sciences, The University of Tulsa, Tulsa, Oklahoma, USA
| | - Giuseppe Carrà
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,Division of Psychiatry, University College London, London, United Kingdom
| |
Collapse
|
18
|
Liu J, Bailbé D, Raynal S, Carbonne C, Zhen D, Dairou J, Gausseres B, Armanet M, Domet T, Pitasi CL, Movassat J, Lim CK, Guillemin GJ, Autier V, Kergoat M, Portha B. Kynurenine-3-monooxygenase expression is activated in the pancreatic endocrine cells by diabetes and its blockade improves glucose-stimulated insulin secretion. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166509. [PMID: 35914653 DOI: 10.1016/j.bbadis.2022.166509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 11/25/2022]
Abstract
Type 2 diabetes is associated with an inflammatory phenotype in the pancreatic islets. We previously demonstrated that proinflammatory cytokines potently activate the tryptophan/kynurenine pathway (TKP) in INS-1 cells and in normal rat islets. Here we examined: (1) the TKP enzymes expression in the diabetic GK islets; (2) the TKP enzymes expression profiles in the GK islets before and after the onset of diabetes; (3) The glucose-stimulated insulin secretion (GSIS) in vitro in GK islets after KMO knockdown using specific morpholino-oligonucleotides against KMO or KMO blockade using the specific inhibitor Ro618048; (4) The glucose tolerance and GSIS after acute in vivo exposure to Ro618048 in GK rats. We report a remarkable induction of the kmo gene in GK islets and in human islets exposed to proinflammatory conditions. It occurred prominently in beta cells. The increased expression and activity of KMO reflected an acquired adaptation. Both KMO knockdown and specific inhibitor Ro618048 enhanced GSIS in vitro in GK islets. Moreover, acute administration of Ro618048 in vivo improved glucose tolerance, GSIS and basal blood glucose levels in GK rats. These results demonstrate that targeting islet TKP is able to correct defective GSIS. KMO inhibition could represent a potential therapeutic strategy for type 2 diabetes.
Collapse
Affiliation(s)
- Junjun Liu
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France; Shandong Institute of Endocrine and Metabolic Diseases, Shandong First Medical University, Jinan, Shandong, China; MetaBrain Research, Maisons-Alfort, France.
| | - Danielle Bailbé
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France
| | | | | | - Delong Zhen
- Shandong Institute of Endocrine and Metabolic Diseases, Shandong First Medical University, Jinan, Shandong, China
| | - Julien Dairou
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris-Cité, Paris, France
| | - Blandine Gausseres
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France
| | - Mathieu Armanet
- Cell Therapy Unit, Hôpital Saint-Louis, AP-HP, Université Paris-Cité, Paris, France
| | - Thomas Domet
- Cell Therapy Unit, Hôpital Saint-Louis, AP-HP, Université Paris-Cité, Paris, France
| | - Caterina L Pitasi
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France
| | - Jamileh Movassat
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France
| | - Chai K Lim
- Neuroinflammation Group, Macquarie Medicine School, Macquarie University, Sydney, Australia
| | - Gilles J Guillemin
- Neuroinflammation Group, Macquarie Medicine School, Macquarie University, Sydney, Australia
| | | | | | - Bernard Portha
- Laboratoire B2PE (Biologie et Pathologie du Pancréas Endocrine), Unité BFA (Biologie Fonctionnelle et Adaptive), CNRS UMR 8251, Université Paris-Cité, Paris, France.
| |
Collapse
|
19
|
The Role of Tryptophan Dysmetabolism and Quinolinic Acid in Depressive and Neurodegenerative Diseases. Biomolecules 2022; 12:biom12070998. [PMID: 35883554 PMCID: PMC9313172 DOI: 10.3390/biom12070998] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/04/2022] [Accepted: 07/14/2022] [Indexed: 02/04/2023] Open
Abstract
Emerging evidence suggests that neuroinflammation is involved in both depression and neurodegenerative diseases. The kynurenine pathway, generating metabolites which may play a role in pathogenesis, is one of several competing pathways of tryptophan metabolism. The present article is a narrative review of tryptophan metabolism, neuroinflammation, depression, and neurodegeneration. A disturbed tryptophan metabolism with increased activity of the kynurenine pathway and production of quinolinic acid may result in deficiencies in tryptophan and derived neurotransmitters. Quinolinic acid is an N-methyl-D-aspartate receptor agonist, and raised levels in CSF, together with increased levels of inflammatory cytokines, have been reported in mood disorders. Increased quinolinic acid has also been observed in neurodegenerative diseases, including Parkinson’s disease, Alzheimer’s disease, amyotrophic lateral sclerosis, and HIV-related cognitive decline. Oxidative stress in connection with increased indole-dioxygenase (IDO) activity and kynurenine formation may contribute to inflammatory responses and the production of cytokines. Increased formation of quinolinic acid may occur at the expense of kynurenic acid and neuroprotective picolinic acid. While awaiting ongoing research on potential pharmacological interventions on tryptophan metabolism, adequate protein intake with appropriate amounts of tryptophan and antioxidants may offer protection against oxidative stress and provide a balanced set of physiological receptor ligands.
Collapse
|
20
|
Kucukkarapinar M, Yay-Pence A, Yildiz Y, Buyukkoruk M, Yaz-Aydin G, Deveci-Bulut TS, Gulbahar O, Senol E, Candansayar S. Psychological outcomes of COVID-19 survivors at sixth months after diagnose: the role of kynurenine pathway metabolites in depression, anxiety, and stress. J Neural Transm (Vienna) 2022; 129:1077-1089. [PMID: 35796878 PMCID: PMC9261222 DOI: 10.1007/s00702-022-02525-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 06/20/2022] [Indexed: 10/31/2022]
Abstract
Coronavirus disease 2019 (COVID-19) has resulted in long-term psychiatric symptoms because of the immunologic response to the virus itself as well as fundamental life changes related to the pandemic. This immune response leads to altered tryptophan (TRP)-kynurenine (KYN) pathway (TKP) metabolism, which plays an essential role in the pathophysiology of mental illnesses. We aimed to define TKP changes as a potential underlying mechanism of psychiatric disorders in post-COVID-19 patients. We measured plasma levels of several TKP markers, including KYN, TRP, kynurenic acid (KYNA), 3-hydroxykynurenine (3-HK), and quinolinic acid (QUIN), as well as the TRP/KYN, KYNA/3-HK, and KYNA/QUIN ratios, in 90 post-COVID-19 patients (on the first day of hospitalization) and 59 healthy controls (on the first admission to the Check-Up Center). An online questionnaire that included the Depression, Anxiety and Stress Scale-21 (DASS-21) was used 6 months after the initial assessment in both groups. A total of 32.2% of participants with COVID-19 showed depressive symptoms, 21.1% exhibited anxiety, and 33.3% had signs of stress at follow-up, while 6.6% of healthy controls exhibited depressive and anxiety symptoms and 18.6% had signs of stress. TRP and 3-HK were negative predictors of anxiety and stress, but KYN positively predicted anxiety and stress. Moreover, TRP negatively predicted depression, while KYNA/3-HK was a negative predictor of anxiety. The correlation between depression, anxiety, and stress and TKP activation in COVID-19 could provide prospective biomarkers, especially the reduction in TRP and 3HK levels and the increase in KYN. Our results suggest that the alteration of TKP is not only a potential biomarker of viral infection-related long-term psychiatric disorders but also that the therapy targets future viral infections related to depression and anxiety.
Collapse
Affiliation(s)
- Melike Kucukkarapinar
- Psychiatry Department, Faculty of Medicine, Gazi University, Emniyet Mah., Yenimahalle, 06560, Ankara, Turkey.
| | - Aysegul Yay-Pence
- Psychiatry Department, Faculty of Medicine, Gazi University, Emniyet Mah., Yenimahalle, 06560, Ankara, Turkey
| | - Yesim Yildiz
- Department of Infectious Diseases, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Merve Buyukkoruk
- Department of Infectious Diseases, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Gizem Yaz-Aydin
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Tuba S Deveci-Bulut
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Ozlem Gulbahar
- Department of Medical Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Esin Senol
- Department of Infectious Diseases, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Selcuk Candansayar
- Psychiatry Department, Faculty of Medicine, Gazi University, Emniyet Mah., Yenimahalle, 06560, Ankara, Turkey
| |
Collapse
|
21
|
Bansal Y, Singh R, Sodhi RK, Khare P, Dhingra R, Dhingra N, Bishnoi M, Kondepudi KK, Kuhad A. Kynurenine monooxygenase inhibition and associated reduced quinolinic acid reverses depression-like behaviour by upregulating Nrf2/ARE pathway in mouse model of depression: In-vivo and In-silico studies. Neuropharmacology 2022; 215:109169. [PMID: 35753430 DOI: 10.1016/j.neuropharm.2022.109169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/28/2022] [Accepted: 06/18/2022] [Indexed: 10/17/2022]
Abstract
Kynurenine pathway, a neuroimmunological pathway plays a substantial role in depression. Consistently, increased levels of neurotoxic metabolite of kynurenine pathway; quinolinic acid (QA) found in the suicidal patients and remitted major depressive patients. QA, an endogenous modulator of N-methyl-d-aspartate receptor is produced by microglial cells, may serve as a potential candidate for a link between antioxidant defence system and immune changes in depression. Further, nuclear factor (erythroid-derived 2) like 2 (Nrf2), an endogenous antioxidant transcription factor plays a significant role in maintaining antioxidant homeostasis during basal and stress conditions. The present study was designed to explore the effects of KMO-inhibition (Kynurenine monooxygenase) and association of reduced QA on Keap1/Nrf2/ARE pathway activity in olfactory bulbectomized mice (OBX-mice). KMO catalysis the neurotoxic branch of kynurenine pathway directing the synthesis of QA. KMO inhibitionshowed significant reversal of depressive-like behaviour, restored Keap-1 and Nrf2 mRNA expression, and associated antioxidant levels in cortex and hippocampus of OBX-mice. KMO inhibition also increased PI3K/AKT mRNA expression in OBX-mice. KMO inhibition and associated reduced QA significantly decreased inflammatory markers, kynurenine and increased the 5-HT, 5-HIAA and tryptophan levels in OBX-mice. Furthermore, molecular docking studies has shown good binding affinity of QA towards ubiquitin proteasome complex and PI3K protein involved in Keap-1 dependent and independent proteasome degradation of Nrf2 respectively supporting our in-vivo findings. Hence, QA might act as pro-oxidant through downregulating Nrf2/ARE pathway along with modulating other pathways and KMO inhibition could be a potential therapeutic target for depression treatment.
Collapse
Affiliation(s)
- Yashika Bansal
- Pharmacology Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Raghunath Singh
- Pharmacology Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Rupinder Kaur Sodhi
- Pharmacology Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Pragyanshu Khare
- Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Richa Dhingra
- Pharmachemistry Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Neelima Dhingra
- Pharmachemistry Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India
| | - Mahendra Bishnoi
- Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Kanthi Kiran Kondepudi
- Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Sahibzada Ajit Singh Nagar, Punjab, India
| | - Anurag Kuhad
- Pharmacology Research Lab, University Institute of Pharmaceutical Sciences UGC-Centre of Advanced Study, Panjab University, Chandigarh, India.
| |
Collapse
|
22
|
Abstract
Many patients under treatment for mood disorders, in particular patients with bipolar mood disorders, experience episodes of mood switching from one state to another. Various hypotheses have been proposed to explain the mechanism of mood switching, spontaneously or induced by drug treatment. Animal models have also been used to test the role of psychotropic drugs in the switching of mood states. We examine the possible relationship between the pharmacology of psychotropic drugs and their reported incidents of induced mood switching, with reference to the various hypotheses of mechanisms of mood switching.
Collapse
|
23
|
Sosa-Moscoso B, Ullauri C, Chiriboga JD, Silva P, Haro F, Leon-Rojas JE. Magnetic Resonance Spectroscopy and Bipolar Disorder: How Feasible Is This Pairing? Cureus 2022; 14:e23690. [PMID: 35505758 PMCID: PMC9056012 DOI: 10.7759/cureus.23690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2022] [Indexed: 11/29/2022] Open
Abstract
Bipolar disorder is a psychiatric disorder that affects a significant part of the world's population; however, its diagnosis is difficult, mainly because of the lack of biomarkers and objective tests that aid the clinical evaluation. Proton magnetic resonance spectroscopy (MRS) is a tool that is relatively unused in the medical field. Its application arises from conventional magnetic resonance, and allows non-invasive, in vivo, the study of various metabolites and compounds in the human brain. This method may allow the assessment of neurobiochemical alterations in bipolar patients. One of the main advantages of this study type is the simplicity in its use since it only needs a standard magnetic resonator. All these characteristics make it an attractive diagnostic tool that can be used anywhere, including in low-middle-income countries. In conclusion, MRS has potential as a diagnostic tool for bipolar disorder; nevertheless, using it for this purpose still requires additional steps.
Collapse
|
24
|
Khoshnevisan K, Chehrehgosha M, Conant M, Mohammad Meftah A, Baharifar H, Ejtahed HS, Angoorani P, Gholami M, Sharifi F, Maleki H, Larijani B, Khorramizadeh MR. Interactive relationship between Trp metabolites and gut microbiota: The impact on human pathology of disease. J Appl Microbiol 2022; 132:4186-4207. [PMID: 35304801 DOI: 10.1111/jam.15533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 01/24/2022] [Accepted: 03/17/2022] [Indexed: 11/28/2022]
Abstract
Tryptophan (Trp), an α-amino acid, is the precursor of serotonin (5-hydroxytryptamine, 5-HT), which is involved in a variety of features of metabolic function and human nutrition. Evidence highlights the role of Trp metabolites (exclusively 5-HT) in the gastrointestinal (GI) tract; however, the mechanisms of action involved in the release of 5-HT in the GI tract are still unknown. Considering the fact that variations of 5-HT may facilitate the growth of certain GI disorders, gaining a better understanding of the function and release of 5-HT in the GI tract would be beneficial. Additionally, investigating Trp metabolism may clarify the relationship between Trp and gut microbiota. It is believed that other metabolites of Trp (mostly that of the kynurenine pathway) may play a significant role in controlling gut microbiota function. In this review, we have attempted to summarize the current research investigating the relationship of gut microbiota, Trp, and 5-HT metabolism (with particular attention paid to their metabolite type, as well as a discussion of the research methods used in each study). Taking together, regarding the role that Trp/5-HT plays in a range of physical and mental diseases, the gut bacterial types, as well as the related disorders, have been exclusively considered.
Collapse
Affiliation(s)
- Kamyar Khoshnevisan
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Chehrehgosha
- Department of Surgical Technology, Paramedical School, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Gerontology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Melissa Conant
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Amir Mohammad Meftah
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Hadi Baharifar
- Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pooneh Angoorani
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Gholami
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Sharifi
- Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Maleki
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Khorramizadeh
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
25
|
Nociceptor-derived Reg3γ prevents endotoxic death by targeting kynurenine pathway in microglia. Cell Rep 2022; 38:110462. [PMID: 35263589 DOI: 10.1016/j.celrep.2022.110462] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 01/11/2022] [Accepted: 02/09/2022] [Indexed: 11/21/2022] Open
Abstract
Nociceptors can fine-tune local or systemic immunity, but the mechanisms of nociceptive modulation in endotoxic death remain largely unknown. Here, we identified C-type lectin Reg3γ as a nociceptor-enriched hormone that protects the host from endotoxic death. During endotoxemia, nociceptor-derived Reg3γ penetrates the brain and suppresses the expression of microglial indoleamine dioxygenase 1, a critical enzyme of the kynurenine pathway, via the Extl3-Bcl10 axis. Endotoxin-administered nociceptor-null mice and nociceptor-specific Reg3γ-deficient mice exhibit a high mortality rate accompanied by decreased brain HK1 phosphorylation and ATP production despite normal peripheral inflammation. Such metabolic arrest is only observed in the brain, and aberrant production of brain quinolinic acid, a neurotoxic metabolite of the kynurenine pathway, causes HK1 suppression. Strikingly, the central administration of Reg3γ protects mice from endotoxic death by enhancing brain ATP production. By identifying nociceptor-derived Reg3γ as a microglia-targeted hormone, this study provides insights into the understanding of tolerance to endotoxic death.
Collapse
|
26
|
Brown SJ, Brown AM, Purves-Tyson TD, Huang XF, Shannon Weickert C, Newell KA. Alterations in the kynurenine pathway and excitatory amino acid transporter-2 in depression with and without psychosis: Evidence of a potential astrocyte pathology. J Psychiatr Res 2022; 147:203-211. [PMID: 35063739 DOI: 10.1016/j.jpsychires.2021.12.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/24/2021] [Accepted: 12/18/2021] [Indexed: 11/19/2022]
Abstract
Evidence, largely obtained from peripheral studies, suggests that alterations in the kynurenine pathway contribute to the aetiology of depression and disorders involving psychosis. Stimulation of the kynurenine pathway leads to the formation of neuroactive metabolites, including kynurenic acid (predominantly in astrocytes) and quinolinic acid (predominantly in microglia), which are antagonists and agonists of the glutamate NMDA receptor, respectively. In this study, we measured gene expression via qRT-PCR of the main kynurenine pathway enzymes in the anterior cingulate cortex (ACC) in people with major depressive disorder and matched controls. In parallel, we tested for diagnostic differences in gene expression of relevant glial markers. We used total RNA isolated from the ACC from depression subjects with psychosis (n = 12) and without psychosis (n = 12), and non-psychiatric controls (n = 12) provided by the Stanley Medical Research Institute. In the ACC, KYAT1 (KAT I), AADAT (KAT II), and the astrocytic SLC1A2 (EAAT2) mRNAs, were significantly increased in depression, when combining those with and without psychosis. The increased KYAT1 and AADAT mRNA indicates that depression is associated with increased activation of the kynurenic acid arm of the kynurenine pathway in the ACC, suggesting an astrocyte response in depression. Considering EAAT2 and KATs increase astrocytic glutamate uptake and production of the NMDA receptor antagonist kynurenic acid, the observed increases of these markers may relate to changes in glutamatergic signalling in depression. These results suggest dysfunction of the kynurenine pathway in the brain in depression and point to the kynurenine pathway as a possible driver of glutamate dysfunction in depression.
Collapse
Affiliation(s)
- Samara J Brown
- School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, New South Wales, 2522, Australia
| | - Amelia M Brown
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, New South Wales, 2031, Australia
| | - Tertia D Purves-Tyson
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, New South Wales, 2031, Australia; School of Psychiatry, Faculty of Medicine, University of New South Wales, Randwick, New South Wales, 2031, Australia
| | - Xu-Feng Huang
- School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, New South Wales, 2522, Australia
| | - Cynthia Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, New South Wales, 2031, Australia; School of Psychiatry, Faculty of Medicine, University of New South Wales, Randwick, New South Wales, 2031, Australia; Department of Neuroscience & Physiology, Upstate Medical University, Syracuse, NY, 13210, USA
| | - Kelly A Newell
- School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, New South Wales, 2522, Australia.
| |
Collapse
|
27
|
Wang Q, Sun YN, Zou CM, Zhang TL, Li Z, Liu M, Shi BY, Shi SS, Yu CY, Wei TM. Regulation of the kynurenine/serotonin pathway by berberine and the underlying effect in the hippocampus of the chronic unpredictable mild stress mice. Behav Brain Res 2022; 422:113764. [PMID: 35051489 DOI: 10.1016/j.bbr.2022.113764] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/15/2022] [Accepted: 01/15/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Depression is a common mental disorder and is one of the main causes of disability. Berberine (BBR), the major constituent alkaloid originally from the famous Chinese herb Huanglian (Coptis chinensis), has been shown to exert antidepressant-like effects. This study was to investigate the hypothesis that BBR treats depressive-like behavior by shifting the balance of the kynurenine (KYN)/serotonin (5-HT) pathway toward the 5-HT pathway through downregulated indoleamine 2,3-dioxygenase 1 (IDO1), monoamine oxidase A (MAOA) and upregulated dopamine decarboxylase (DDC) in hippocampus. METHOD A chronic unpredictable mild stress (CUMS) mice model of depression was established via 21 days unpredictable stimulation. Then the mice were randomly assigned into six groups, namely control, model, fluoxetine [FLU, (10 mg/kg)], BBRL (25 mg/kg), BBRM (50 mg/kg), and BBRH (100 mg/kg) groups. Behavioral assessments were conducted to evaluate the antidepressant effects of BBR. The levels of 5-HT, KYN, tryptophan (TRP), and 5-hydroxyindoleacetic acid (5-HIAA) in hippocampus were estimated using high performance liquid chromatography (HPLC). The mRNA and protein levels of DDC, MAOA and IDO1 in hippocampus were detected by real-time quantitative polymerase chain reaction (qRT-PCR) and western blot (WB), respectively. RESULT The results showed that a successful CUMS mice model was established through 21 days of continuous unpredictable stimulation, as indicated by the significant decrease in locomotor activity and increase in immobility time, reduction in body weight and sucrose preference rate etc. Compared with the normal group, the concentrations of KYN/TRP had significantly increased (p## <0.01) and 5-HT/5-HIAA had decreased (p#<0.05) at day 21 in the control group, but then improved after drug treatment with FLU and BBR. Compared with the normal group, the mRNA of IDO1 and MAOA were significantly upregulated (p#<0.05) in the control group, MAOA and IDO1 gene were downregulated by FLU and BBR treatment. Protein expressions of IDO1 and MAOA was significantly increased (p#<0.05) and DDC downregulated (p##<0.01). BBR treatment downregulated IDO1 and MAOA, upregulated DDC. CONCLUSIONS BBR reversed the abnormalities of the KYN/5-HT pathway in depressed mice and achieved an excellent antidepressant effect. Its direct impact may be observed as changes in biological indicators in mice hippocampus tissue.
Collapse
Affiliation(s)
- Qi Wang
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Ya-Nan Sun
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Chun-Ming Zou
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Te-Li Zhang
- Department of Pharmacy, The People's Hospital of Daqing, Daqing 163319, China
| | - Zhu Li
- Department of human resource, Harbin Medical University (Daqing), Daqing 163319, China
| | - Min Liu
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Bi-Ying Shi
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Shan-Shan Shi
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China
| | - Chun-Yue Yu
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China.
| | - Tai-Ming Wei
- College of Pharmacy, Harbin Medical University (Daqing), Daqing 163319, China.
| |
Collapse
|
28
|
The Kynurenine Pathway and Kynurenine 3-Monooxygenase Inhibitors. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27010273. [PMID: 35011505 PMCID: PMC8747024 DOI: 10.3390/molecules27010273] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 12/20/2022]
Abstract
Under normal physiological conditions, the kynurenine pathway (KP) plays a critical role in generating cellular energy and catabolizing tryptophan. Under inflammatory conditions, however, there is an upregulation of the KP enzymes, particularly kynurenine 3-monooxygenase (KMO). KMO has garnered much attention due to its production of toxic metabolites that have been implicated in many diseases and disorders. With many of these illnesses having an inadequate or modest treatment, there exists a need to develop KMO inhibitors that reduce the production of these toxic metabolites. Though prior efforts to find an appropriate KMO inhibitor were unpromising, the development of a KMO crystal structure has provided the opportunity for a rational structure-based design in the development of inhibitors. Therefore, the purpose of this review is to describe the kynurenine pathway, the kynurenine 3-monooxygenase enzyme, and KMO inhibitors and their potential candidacy for clinical use.
Collapse
|
29
|
Fukushima T, Umino M, Sakamoto T, Onozato M. A review of chromatographic methods for bioactive tryptophan metabolites, kynurenine, kynurenic acid, quinolinic acid, and others, in biological fluids. Biomed Chromatogr 2022; 36:e5308. [PMID: 34978092 DOI: 10.1002/bmc.5308] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 11/06/2022]
Abstract
sKynurenine (KYN) is synthesized from an essential amino acid, tryptophan by tryptophan 2,3-dioxygenase or indoleamine 2,3-dioxygenase via N-formyl- KYN in vivo. Subsequently, KYN acts as a precursor of some neuroactive metabolites such as kynurenic acid, quinolinic acid, and an important enzyme co-factor, nicotine adenine dinucleotide. These metabolites of tryptophan are a part of the "kynurenine pathway." In addition, KYN functions as an endogenous ligand for the aryl hydrocarbon receptor, which acts as a transcription factor. The levels of tryptophan metabolites are important for the assessment of the stage of neurological disorders, and hence, have garnered significant interest for clinical diagnosis. In this review, the detection of kynurenine, kynurenic acid, quinolinic acid, and other tryptophan metabolites performed via chromatographic methods such as HPLC using UV absorbance, fluorescence, and chromatographic-mass spectrometric detection is summarized.
Collapse
Affiliation(s)
- Takeshi Fukushima
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Maho Umino
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Tatsuya Sakamoto
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Mayu Onozato
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| |
Collapse
|
30
|
Dogrul BN. Indolamine 2,3-dioxygenase (IDO) inhibitors as a potential treatment for somatic symptoms. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
31
|
Karle A, Twum K, Sabbagh N, Haddad A, Taimoory SM, Szczęśniak MM, Trivedi E, Trant JF, Beyeh NK. Naphthalene-functionalized resorcinarene as selective, fluorescent self-quenching sensor for kynurenic acid. Analyst 2022; 147:2264-2271. [DOI: 10.1039/d1an02224e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Naphthalene-functionalized resorcinarene selectively binds kynurenic acid in the presence of excess tryptophan in aqueous media, highlighting the potential of functionalized resorcinarenes as sensory recognition elements for biomolecular analytes.
Collapse
Affiliation(s)
- Anna Karle
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| | - Kwaku Twum
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| | - Noorhan Sabbagh
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| | - Alise Haddad
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| | - S. Maryamdokht Taimoory
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
- Department of Chemistry, University of Michigan, 930 N. University Ave, 2811 Ann Arbor, MI 48019, USA
| | | | - Evan Trivedi
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| | - John F. Trant
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
| | - Ngong Kodiah Beyeh
- Oakland University, 146 Library Drive, Rochester, Michigan, 48309-4479, USA
| |
Collapse
|
32
|
Myint AM, Halaris A. Imbalances in Kynurenines as Potential Biomarkers in the Diagnosis and Treatment of Psychiatric Disorders. Front Psychiatry 2022; 13:913303. [PMID: 35836656 PMCID: PMC9275364 DOI: 10.3389/fpsyt.2022.913303] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Aye-Mu Myint
- Department of Psychiatry, Loyola University School of Medicine and Loyola University Medical Center, Maywood, IL, United States
| | - Angelos Halaris
- Department of Psychiatry, Loyola University School of Medicine and Loyola University Medical Center, Maywood, IL, United States
| |
Collapse
|
33
|
da Silva Zandonadi F, dos Santos EAF, Marques MS, Sussulini A. Metabolomics: A Powerful Tool to Understand the Schizophrenia Biology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1400:105-119. [DOI: 10.1007/978-3-030-97182-3_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
34
|
McGuinness AJ, Davis JA, Dawson SL, Loughman A, Collier F, O’Hely M, Simpson CA, Green J, Marx W, Hair C, Guest G, Mohebbi M, Berk M, Stupart D, Watters D, Jacka FN. A systematic review of gut microbiota composition in observational studies of major depressive disorder, bipolar disorder and schizophrenia. Mol Psychiatry 2022; 27:1920-1935. [PMID: 35194166 PMCID: PMC9126816 DOI: 10.1038/s41380-022-01456-3] [Citation(s) in RCA: 181] [Impact Index Per Article: 90.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 12/22/2021] [Accepted: 01/18/2022] [Indexed: 02/07/2023]
Abstract
The emerging understanding of gut microbiota as 'metabolic machinery' influencing many aspects of physiology has gained substantial attention in the field of psychiatry. This is largely due to the many overlapping pathophysiological mechanisms associated with both the potential functionality of the gut microbiota and the biological mechanisms thought to be underpinning mental disorders. In this systematic review, we synthesised the current literature investigating differences in gut microbiota composition in people with the major psychiatric disorders, major depressive disorder (MDD), bipolar disorder (BD) and schizophrenia (SZ), compared to 'healthy' controls. We also explored gut microbiota composition across disorders in an attempt to elucidate potential commonalities in the microbial signatures associated with these mental disorders. Following the PRISMA guidelines, databases were searched from inception through to December 2021. We identified 44 studies (including a total of 2510 psychiatric cases and 2407 controls) that met inclusion criteria, of which 24 investigated gut microbiota composition in MDD, seven investigated gut microbiota composition in BD, and 15 investigated gut microbiota composition in SZ. Our syntheses provide no strong evidence for a difference in the number or distribution (α-diversity) of bacteria in those with a mental disorder compared to controls. However, studies were relatively consistent in reporting differences in overall community composition (β-diversity) in people with and without mental disorders. Our syntheses also identified specific bacterial taxa commonly associated with mental disorders, including lower levels of bacterial genera that produce short-chain fatty acids (e.g. butyrate), higher levels of lactic acid-producing bacteria, and higher levels of bacteria associated with glutamate and GABA metabolism. We also observed substantial heterogeneity across studies with regards to methodologies and reporting. Further prospective and experimental research using new tools and robust guidelines hold promise for improving our understanding of the role of the gut microbiota in mental and brain health and the development of interventions based on modification of gut microbiota.
Collapse
Affiliation(s)
- A. J. McGuinness
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia
| | - J. A. Davis
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia
| | - S. L. Dawson
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia ,grid.1058.c0000 0000 9442 535XMurdoch Children’s Research Institute, Parkville, VIC Australia
| | - A. Loughman
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia
| | - F. Collier
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia
| | - M. O’Hely
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia ,grid.1058.c0000 0000 9442 535XMurdoch Children’s Research Institute, Parkville, VIC Australia
| | - C. A. Simpson
- grid.1008.90000 0001 2179 088XMelbourne School of Psychological Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XMelbourne Neuropsychiatry Centre, Department of Medicine, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne and Melbourne Health, Melbourne, VIC Australia
| | - J. Green
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia ,grid.1002.30000 0004 1936 7857Monash Alfred Psychiatry Research Centre (MAPcr), Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Parkville, VIC Australia ,grid.466993.70000 0004 0436 2893Department of Psychiatry, Peninsula Health, Frankston, VIC Australia
| | - W. Marx
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia
| | - C. Hair
- grid.1021.20000 0001 0526 7079Deakin University, School of Medicine, Geelong, VIC Australia ,grid.414257.10000 0004 0540 0062Department of Gastroenterology, Barwon Health, Geelong, VIC Australia
| | - G. Guest
- grid.1021.20000 0001 0526 7079Deakin University, School of Medicine, Geelong, VIC Australia ,grid.415335.50000 0000 8560 4604Department of Surgery, University Hospital Geelong, Barwon Health, Geelong, VIC Australia
| | - M. Mohebbi
- grid.1021.20000 0001 0526 7079Biostatistics Unit, Faculty of Health, Deakin University, Melbourne, VIC Australia
| | - M. Berk
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia ,grid.1021.20000 0001 0526 7079Deakin University, School of Medicine, Geelong, VIC Australia ,grid.1008.90000 0001 2179 088XOrygen, The National Centre of Excellence in Youth Mental Health, Centre for Youth Mental Health, Florey Institute for Neuroscience and Mental Health and the Department of Psychiatry, The University of Melbourne, Melbourne, Australia
| | - D. Stupart
- grid.1021.20000 0001 0526 7079Deakin University, School of Medicine, Geelong, VIC Australia ,grid.415335.50000 0000 8560 4604Department of Surgery, University Hospital Geelong, Barwon Health, Geelong, VIC Australia
| | - D. Watters
- grid.1021.20000 0001 0526 7079Deakin University, School of Medicine, Geelong, VIC Australia ,grid.415335.50000 0000 8560 4604Department of Surgery, University Hospital Geelong, Barwon Health, Geelong, VIC Australia
| | - F. N. Jacka
- grid.1021.20000 0001 0526 7079The Institute for Mental and Physical Health and Clinical Translation (IMPACT), Food & Mood Centre, School of Medicine and Barwon Health, Deakin University, Geelong, VIC Australia ,grid.1058.c0000 0000 9442 535XCentre for Adolescent Health, Murdoch Children’s Research Institute, Melbourne, VIC Australia ,grid.418393.40000 0001 0640 7766Black Dog Institute, Sydney, NSW Australia ,grid.1011.10000 0004 0474 1797College of Public Health, Medical & Veterinary Sciences, James Cook University, Townsville, QLD Australia
| |
Collapse
|
35
|
Okamoto L, Watanabe S, Deno S, Nie X, Maruyama J, Tomita M, Hatano A, Yugi K. Meta-analysis of transcriptional regulatory networks for lipid metabolism in neural cells from schizophrenia patients based on an open-source intelligence approach. Neurosci Res 2021; 175:82-97. [PMID: 34979163 DOI: 10.1016/j.neures.2021.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 01/13/2023]
Abstract
There have been a number of reports about the transcriptional regulatory networks in schizophrenia. However, most of these studies were based on a specific transcription factor or a single dataset, an approach that is inadequate to understand the diverse etiology and underlying common characteristics of schizophrenia. Here we reconstructed and compared the transcriptional regulatory network for lipid metabolism enzymes using 15 public transcriptome datasets of neural cells from schizophrenia patients. Since many of the well-known schizophrenia-related SNPs are in enhancers, we reconstructed a network including enhancer-dependent regulation and found that 53.3 % of the total number of edges (7,577 pairs) involved regulation via enhancers. By examining multiple datasets, we found common and unique transcriptional modes of regulation. Furthermore, enrichment analysis of SNPs that were connected with genes in the transcriptional regulatory networks by eQTL suggested an association with hematological cell counts and some other traits/diseases, whose relationship to schizophrenia was either not or insufficiently reported in previous studies. Based on these results, we suggest that in future studies on schizophrenia, information on genotype, comorbidities and hematological cell counts should be included, along with the transcriptome, for a more detailed genetic stratification and mechanistic exploration of schizophrenia.
Collapse
Affiliation(s)
- Lisa Okamoto
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; Institute for Advanced Biosciences, Keio University, Fujisawa, 252-0882, Japan; Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, 252-0882, Japan
| | - Soyoka Watanabe
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; Institute for Advanced Biosciences, Keio University, Fujisawa, 252-0882, Japan
| | - Senka Deno
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; Institute for Advanced Biosciences, Keio University, Fujisawa, 252-0882, Japan; Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, 252-0882, Japan
| | - Xiang Nie
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Junichi Maruyama
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Masaru Tomita
- Institute for Advanced Biosciences, Keio University, Fujisawa, 252-0882, Japan; Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, 252-0882, Japan
| | - Atsushi Hatano
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; Department of Omics and Systems Biology, Niigata University Graduate School of Medical and Dental Sciences, 757 Ichibancho, Asahimachi-dori, Chuo Ward, Niigata City, 951-8510, Japan
| | - Katsuyuki Yugi
- Laboratory for Integrated Cellular Systems, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan; Institute for Advanced Biosciences, Keio University, Fujisawa, 252-0882, Japan; Department of Biological Sciences, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; PRESTO, Japan Science and Technology Agency, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan.
| |
Collapse
|
36
|
Nöthling J, Abrahams N, Toikumo S, Suderman M, Mhlongo S, Lombard C, Seedat S, Hemmings SMJ. Genome-wide differentially methylated genes associated with posttraumatic stress disorder and longitudinal change in methylation in rape survivors. Transl Psychiatry 2021; 11:594. [PMID: 34799556 PMCID: PMC8604994 DOI: 10.1038/s41398-021-01608-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 08/01/2021] [Accepted: 09/02/2021] [Indexed: 12/24/2022] Open
Abstract
Rape is associated with a high risk for posttraumatic stress disorder (PTSD). DNA methylation changes may confer risk or protection for PTSD following rape by regulating the expression of genes implicated in pathways affected by PTSD. We aimed to: (1) identify epigenome-wide differences in methylation profiles between rape-exposed women with and without PTSD at 3-months post-rape, in a demographically and ethnically similar group, drawn from a low-income setting; (2) validate and replicate the findings of the epigenome-wide analysis in selected genes (BRSK2 and ADCYAP1); and (3) investigate baseline and longitudinal changes in BRSK2 and ADCYAP1 methylation over six months in relation to change in PTSD symptom scores over 6 months, in the combined discovery/validation and replication samples (n = 96). Rape-exposed women (n = 852) were recruited from rape clinics in the Rape Impact Cohort Evaluation (RICE) umbrella study. Epigenome-wide differentially methylated CpG sites between rape-exposed women with (n = 24) and without (n = 24) PTSD at 3-months post-rape were investigated using the Illumina EPIC BeadChip in a discovery cohort (n = 48). Validation (n = 47) and replication (n = 49) of BRSK2 and ADCYAP1 methylation findings were investigated using EpiTYPER technology. Longitudinal change in BRSK2 and ADCYAP1 was also investigated using EpiTYPER technology in the combined sample (n = 96). In the discovery sample, after adjustment for multiple comparisons, one differentially methylated CpG site (chr10: 61385771/ cg01700569, p = 0.049) and thirty-four differentially methylated regions were associated with PTSD status at 3-months post-rape. Decreased BRSK2 and ADCYAP1 methylation at 3-months and 6-months post-rape were associated with increased PTSD scores at the same time points, but these findings did not remain significant in adjusted models. In conclusion, decreased methylation of BRSK2 may result in abnormal neuronal polarization, synaptic development, vesicle formation, and disrupted neurotransmission in individuals with PTSD. PTSD symptoms may also be mediated by differential methylation of the ADCYAP1 gene which is involved in stress regulation. Replication of these findings is required to determine whether ADCYAP1 and BRSK2 are biomarkers of PTSD and potential therapeutic targets.
Collapse
Affiliation(s)
- Jani Nöthling
- Department of Psychiatry, Faculty of Medicine and Health Sciences Stellenbosch University, Cape Town, South Africa.
- Gender and Health Research Unit, South African Medical Research Council, Cape Town, South Africa.
- South African Medical Research Council Unit on the Genomics of Brain Disorders, Stellenbosch University, Cape Town, South Africa.
| | - Naeemah Abrahams
- Gender and Health Research Unit, South African Medical Research Council, Cape Town, South Africa
- Division of Social and Behavioural Sciences, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Sylvanus Toikumo
- Department of Psychiatry, Faculty of Medicine and Health Sciences Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Unit on the Genomics of Brain Disorders, Stellenbosch University, Cape Town, South Africa
| | - Matthew Suderman
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Shibe Mhlongo
- Gender and Health Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Carl Lombard
- Biostatistics Unit, South African Medical Research Council, Cape Town, South Africa
- Division of Epidemiology and Biostatistics, Department of Global Health, Stellenbosch University, Cape Town, South Africa
| | - Soraya Seedat
- Department of Psychiatry, Faculty of Medicine and Health Sciences Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Unit on the Genomics of Brain Disorders, Stellenbosch University, Cape Town, South Africa
| | - Sian Megan Joanna Hemmings
- Department of Psychiatry, Faculty of Medicine and Health Sciences Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Unit on the Genomics of Brain Disorders, Stellenbosch University, Cape Town, South Africa
| |
Collapse
|
37
|
Tryptophan Metabolism in Bipolar Disorder in a Longitudinal Setting. Antioxidants (Basel) 2021; 10:antiox10111795. [PMID: 34829665 PMCID: PMC8615217 DOI: 10.3390/antiox10111795] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 11/17/2022] Open
Abstract
Immune-mediated inflammatory processes and oxidative stress are involved in the aetiopathogenesis of bipolar disorder (BD) and weight-associated comorbidities. Tryptophan breakdown via indoleamine 2,3-dioxygenase-1 (IDO-1) along the kynurenine axis concomitant with a pro-inflammatory state was found to be more active in BD, and associated with overweight/obesity. This study aimed to investigate tryptophan metabolism in BD compared to controls (C), stratified by weight classes, in a longitudinal setting, dependent on the incidence of BD episodes. Peripheral tryptophan, kynurenine, and neopterin were assessed in the serum of 226 BD individuals and 142 C. Three samples in a longitudinal assessment were used for 75 BD individuals. Results showed a higher kynurenine/tryptophan in both BD compared to C and overweight compared to normal weight persons. Levels remained stable over time. In the longitudinal course, no differences were found between individuals who were constantly euthymic or not, or who had an illness episode or had none. Findings indicate that tryptophan, kynurenine, and IDO-1 activity may play a role in pathophysiology in BD but are not necessarily associated with clinical manifestations. Accelerated tryptophan breakdown along the kynurenine axis may be facilitated by being overweight. This may increase the risk of accumulation of neurotoxic metabolites, impacting BD symptomatology, cognition, and somatic comorbidities.
Collapse
|
38
|
La Torre D, Dalile B, de Loor H, Van Oudenhove L, Verbeke K. Changes in kynurenine pathway metabolites after acute psychosocial stress in healthy males: a single-arm pilot study. Stress 2021; 24:920-930. [PMID: 34320918 DOI: 10.1080/10253890.2021.1959546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Chronic stress is associated with an increased conversion of tryptophan (TRP) into kynurenine (KYN). However, only a few studies investigated KYN pathway metabolite concentrations following acute stress in healthy subjects. We hypothesized that TRP/KYN metabolism changes following acute stress, and that KYN pathway metabolites are associated with cortisol and subjective stress responses. In a single-arm pilot study, we explored whether KYN pathway metabolites concentrations were altered after acute stress induced by the Maastricht Acute Stress Test in healthy males (n = 56, mean age: 27 (SD = 4.5) years, BMI: 23 (SD = 1.8) kg/m2). In particular, we examined whether concentrations of TRP decreased, and KYN, kynurenic acid (KYNA), and the ratio of KYN to TRP (KYN:TRP) increased after acute stress. Furthermore, we assessed whether cortisol and subjective stress responses correlated with KYN pathway metabolite measures after stress induction, based on both the area under the curve with respect to the ground (AUCg) as well as the incremental area under the curve (AUCi). Concentrations of TRP, KYN, KYNA, and KYN:TRP were significantly lower after stress induction compared to pre-stress induction (all p < 0.01). AUCi and AUCg reflecting cortisol and subjective stress responses did not correlate with AUCi and AUCg reflecting KYN pathway metabolite responses. These preliminary results indicate that KYN pathway metabolites are lower after acute psychosocial stress induction. Moreover, although chronic stress and subsequent prolonged elevated cortisol concentrations and subjective stress stimulate the conversion of TRP into KYN, acute stress is not associated with such conversion up to 35 minutes after stress induction.
Collapse
Affiliation(s)
- Danique La Torre
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Boushra Dalile
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Henriette de Loor
- Department of Microbiology Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium
| | - Lukas Van Oudenhove
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Leuven Brain Institute, KU Leuven, Leuven, Belgium
- Cognitive and Affective Neuroscience Lab (CANlab), Department of Psychological and Brain Sciences, Dartmouth College, Hanover, NH, USA
| | - Kristin Verbeke
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, Leuven, Belgium
| |
Collapse
|
39
|
Liu S, Cheng Y, Chen WZ, Lv JX, Zheng BS, Huang DD, Xia XF, Yu Z. Inflammation Disturbed the Tryptophan Catabolites in Hippocampus of Post-operative Fatigue Syndrome Rats via Indoleamine 2,3-Dioxygenas Enzyme and the Improvement Effect of Ginsenoside Rb1. Front Neurosci 2021; 15:652817. [PMID: 34512234 PMCID: PMC8427665 DOI: 10.3389/fnins.2021.652817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/02/2021] [Indexed: 11/17/2022] Open
Abstract
Aim Post-operative fatigue syndrome (POFS) is a common complication that prolongs the recovery to normal function and activity after surgery. The aim of the present study was to explore the mechanism of central fatigue in POFS and the anti-fatigue effect of ginsenoside Rb1. Method We investigated the association between inflammation, indoleamine 2,3-dioxygenase (IDO) enzyme, and tryptophan metabolism in the hippocampus of POFS rats. A POFS rat model was induced by major small intestinal resection. Rats with major small intestinal resection were administered ginsenoside Rb1 (15 mg/kg) once a day from 3 days before surgery to the day of sacrifice, or with saline as corresponding controls. Fatigue was assessed with the open field test (OFT) and sucrose preference test (SPT). ELISA, RT-PCR, Western blot, immunofluorescence, and high-performance liquid chromatography (HPLC) were used to test the inflammatory cytokines; p38MAPK, NF-κB/p65, and IDO enzyme expressions; and the concentrations of tryptophan, kynurenine, and serotonin, respectively. Result Our results showed that POFS was associated with increased expressions of inflammatory cytokines and p38MAPK and higher concentrations of kynurenine and tryptophan on post-operative days 1 and 3; a lower serotonin level on post-operative day 1; and an enhanced translocation of NF-κB/p65 and the IDO enzyme on post-operative days 1, 3, and 5. Ginsenoside Rb1 had an improvement effect on these. Conclusion Inflammatory cytokines induced by large abdominal surgery disturb tryptophan metabolism to cause POFS through the activation of the p38MAPK–NF-κB/p65–IDO pathway in the hippocampus. Ginsenoside Rb1 had an anti-fatigue effect on POFS by reducing inflammation and IDO enzyme.
Collapse
Affiliation(s)
- Shu Liu
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong, SAR China
| | - Yue Cheng
- Department of Clinical Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Wei-Zhe Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jin-Xiao Lv
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bei-Shi Zheng
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dong-Dong Huang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xu-Fen Xia
- Department of Clinical Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Zhen Yu
- Department of Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai, China
| |
Collapse
|
40
|
Hüfner K, Giesinger JM, Gostner JM, Egeter J, Koudouovoh-Tripp P, Vill T, Fuchs D, Sperner-Unterweger B. Neurotransmitter Precursor Amino Acid Ratios Show Differential, Inverse Correlations with Depression Severity in the Low and High Depression Score Range. Int J Tryptophan Res 2021; 14:11786469211039220. [PMID: 34483668 PMCID: PMC8414612 DOI: 10.1177/11786469211039220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/20/2021] [Indexed: 12/28/2022] Open
Abstract
The immunomodulatory capacity of mental stress is one of the basic concepts of
psychoneuroimmunology. The current prospective longitudinal study was designed
to evaluate the effect of acute mental stress on neurotransmitter precursor
amino acid levels in individuals with depression at 2 time points. Ten
physically healthy patients with a diagnosis of major depressive episode and
Montgomery–Åsberg Depression Rating Scale scores (MADRAS) ⩾20 points at
inclusion were assessed on 2 study days (once with higher MADRAS scores, once
with lower MADRAS scores; median 34.5 days apart) and subjected to a
standardized acute mental stress test on each study day. Blood was collected at
4 time points: once prior to and at 3 time points (0, 30 minutes, 60 minutes)
following mental stress. Neurotransmitter precursor amino acid levels, that is
kynurenine/tryptophan (KYN/TRP) and phenylalanine/tyrosine (PHE/TYR), as well as
neopterin and nitrite were analyzed in a total of 80 individual blood samples.
Regression and correlation analyses were performed. Regression analyses of
PHE/TYR (R2 = .547) and KYN/TRP
(R2 = .440) in relation to MADRAS depression
severity showed a quadratic curve fit. This was reflected by a negative linear
correlation between MADRAS scores and PHE/TYR as well as KYN/TRP in the lower
score range (r = −.805, P < .001 and
r = −.586, P < .001 respectively) and a
positive correlation in the higher MADRAS score range
(r = .713, P < .001 and
r = .379, P = .016 respectively). No effect of
acute mental stress was found. This analysis exemplifies the implications of
sampling as well as data distributions on results. The crosstalk of biological
mechanisms that orchestrate metabolic and immunological signaling may vary
depending on depression severity resulting in non-linear associations that may
explain the heterogeneity of results found in the literature.
Collapse
Affiliation(s)
- Katharina Hüfner
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
- Katharina Hüfner, University Clinic for
Psychiatry II, Department of Psychiatry, Psychotherapy and Psychosomatics,
Medical University of Innsbruck, Anichstr. 35, Innsbruck 6020, Austria.
| | - Johannes M Giesinger
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
| | - Johanna M Gostner
- Institute of Medical Biochemistry,
Biocenter, Medical University of Innsbruck, Austria
| | - Jonas Egeter
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
| | - Pia Koudouovoh-Tripp
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
- Division of Psychiatry and
Psychotherapeutic Medicine, Hospital St. Vinzenz Zams, Austria
| | - Theresa Vill
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
| | - Dietmar Fuchs
- Institute of Biological Chemistry,
Biocenter, Medical University of Innsbruck, Austria
| | - Barbara Sperner-Unterweger
- University Clinic for Psychiatry II,
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of
Innsbruck, Austria
| |
Collapse
|
41
|
Marx W, McGuinness AJ, Rocks T, Ruusunen A, Cleminson J, Walker AJ, Gomes-da-Costa S, Lane M, Sanches M, Diaz AP, Tseng PT, Lin PY, Berk M, Clarke G, O'Neil A, Jacka F, Stubbs B, Carvalho AF, Quevedo J, Soares JC, Fernandes BS. The kynurenine pathway in major depressive disorder, bipolar disorder, and schizophrenia: a meta-analysis of 101 studies. Mol Psychiatry 2021; 26:4158-4178. [PMID: 33230205 DOI: 10.1038/s41380-020-00951-9] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/29/2020] [Accepted: 11/02/2020] [Indexed: 12/29/2022]
Abstract
The importance of tryptophan as a precursor for neuroactive compounds has long been acknowledged. The metabolism of tryptophan along the kynurenine pathway and its involvement in mental disorders is an emerging area in psychiatry. We performed a meta-analysis to examine the differences in kynurenine metabolites in major depressive disorder (MDD), bipolar disorder (BD), and schizophrenia (SZ). Electronic databases were searched for studies that assessed metabolites involved in the kynurenine pathway (tryptophan, kynurenine, kynurenic acid, quinolinic acid, 3-hydroxykynurenine, and their associate ratios) in people with MDD, SZ, or BD, compared to controls. We computed the difference in metabolite concentrations between people with MDD, BD, or SZ, and controls, presented as Hedges' g with 95% confidence intervals. A total of 101 studies with 10,912 participants were included. Tryptophan and kynurenine are decreased across MDD, BD, and SZ; kynurenic acid and the kynurenic acid to quinolinic acid ratio are decreased in mood disorders (i.e., MDD and BD), whereas kynurenic acid is not altered in SZ; kynurenic acid to 3-hydroxykynurenine ratio is decreased in MDD but not SZ. Kynurenic acid to kynurenine ratio is decreased in MDD and SZ, and the kynurenine to tryptophan ratio is increased in MDD and SZ. Our results suggest that there is a shift in the tryptophan metabolism from serotonin to the kynurenine pathway, across these psychiatric disorders. In addition, a differential pattern exists between mood disorders and SZ, with a preferential metabolism of kynurenine to the potentially neurotoxic quinolinic acid instead of the neuroprotective kynurenic acid in mood disorders but not in SZ.
Collapse
Affiliation(s)
- Wolfgang Marx
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia.
| | - Amelia J McGuinness
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Tetyana Rocks
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Anu Ruusunen
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia.,Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.,Department of Psychiatry, Kuopio University Hospital, Kuopio, Finland
| | - Jasmine Cleminson
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Adam J Walker
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Susana Gomes-da-Costa
- Bipolar and Depression Disorders Unit, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Melissa Lane
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Marsal Sanches
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Alexandre P Diaz
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Ping-Tao Tseng
- Institute of Biomedical Sciences and Prospect Clinic for Otorhinolaryngology & Neurology, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Pao-Yen Lin
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Institute for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Michael Berk
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Gerard Clarke
- Department of Psychiatry and Neurobehavioural Science and APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Adrienne O'Neil
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Felice Jacka
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Brendon Stubbs
- Department of Psychological Medicine, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK.,South London and Maudsley NHS Foundation Trust, London, UK
| | - André F Carvalho
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - João Quevedo
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Jair C Soares
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Brisa S Fernandes
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA. .,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
| |
Collapse
|
42
|
Liu T, Zhou N, Xu R, Cao Y, Zhang Y, Liu Z, Zheng X, Feng W. A metabolomic study on the anti-depressive effects of two active components from Chrysanthemum morifolium. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 48:718-727. [PMID: 32657166 DOI: 10.1080/21691401.2020.1774597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chrysanthemum morifolium (Chr) is a traditional Chinese medicine (TCM) that has been used in the treatment of inflammation-linked diseases for hundreds of years. Naringenin (Nar) and apigenin (Api) are the major active components in aqueous extracts of C. morifolium. The aim of our study was to clarify the roles of Chr, Nar and Api in ameliorating depression-like behaviour induced by corticosterone. First, the behavioural and biochemical indicators closely related to depression were examined to evaluate the therapeutic effects of Chr/Nar/Api on a depression model. Then, a metabolomics approach was utilized to screen for biomarkers and related pathways between a control group and Chr/Nar/Api groups. The comprehensive results revealed that Chr/Nar/Api exerted anti-depressant effects through interfering with tryptophan metabolism, arginine and prolinemetabolism, citrate cycle, niacin and niacinamide metabolism, phenylalanine metabolism, and alanine, aspartate and glutamate metabolism. The mechanism of Chr/Api/Nar in the treatment of depression was elucidated based on material and energy metabolism. Moreover, Nar could be used as a substitute for Chr for reversing depression-like behaviour, and Api was similar to a positive drug in terms of function on depression. The integrated metabolomics approach demonstrated here should be an effective method for interpreting the function of herbs from TCM and clarifying the mechanism of their components in future studies.
Collapse
Affiliation(s)
- Tong Liu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Ning Zhou
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Ruihao Xu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Yangang Cao
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Yanli Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Zhen Liu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment and Chinese Medicine Development of Henan Province, Zhengzhou, People's Republic of China
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, People's Republic of China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment and Chinese Medicine Development of Henan Province, Zhengzhou, People's Republic of China
| |
Collapse
|
43
|
Effects of stress associated with academic examination on the kynurenine pathway profile in healthy students. PLoS One 2021; 16:e0252668. [PMID: 34081742 PMCID: PMC8174692 DOI: 10.1371/journal.pone.0252668] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/20/2021] [Indexed: 12/16/2022] Open
Abstract
The effects of stress on the neuroendocrine, central nervous and immune systems are extremely complex. The kynurenine pathway (KP) of the tryptophan metabolism is recognised as a cross-link between the neuroendocrine- and immune systems. However, the effects of acute stress from everyday life on KP activation have not yet been studied. This study aims to investigate changes in the levels of the KP neuroactive metabolites and cytokines in response to stress triggered by academic examinations. Ninety-two healthy first year medical students benevolently participated in the study. Parameters were measured pre- examination, which is considered to be a high-stress period, and post-examination, as a low-stress period. Stress induced by academic examinations significantly increases the perceived stress scores (p<0.001), serum cortisol levels (p<0.001) and brain-derived neurotrophic factor (BDNF) levels (p<0.01). It decreased IL-10 levels (p<0.05) but had no effect on IL-6 and TNF-alpha levels. Only the KP neuroactive metabolite, 3-hydroxykynurenine (3-HK) significantly increased (p<0.01) in the post-examination period. In addition, the stress scores positively correlated with the levels of cortisol (r2 = 0.297, p<0.01) at post examination. Acute stress triggered by academic examinations increases cortisol and BDNF production and suppresses the anti-inflammatory cytokine, IL-10, but did not increase significantly the levels of other pro-inflammatory cytokines, tryptophan, kynurenine and downstream KP metabolites. The concomitant increased levels of BDNF under the duress of acute examination stress appear to limit the levels pro-inflammatory markers, which may attenuate the action of cortisol and the neuroinflammatory branch of the KP.
Collapse
|
44
|
Zádor F, Joca S, Nagy-Grócz G, Dvorácskó S, Szűcs E, Tömböly C, Benyhe S, Vécsei L. Pro-Inflammatory Cytokines: Potential Links between the Endocannabinoid System and the Kynurenine Pathway in Depression. Int J Mol Sci 2021; 22:ijms22115903. [PMID: 34072767 PMCID: PMC8199129 DOI: 10.3390/ijms22115903] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023] Open
Abstract
Substance use/abuse is one of the main causes of depressive symptoms. Cannabis and synthetic cannabinoids in particular gained significant popularity in the past years. There is an increasing amount of clinical data associating such compounds with the inflammatory component of depression, indicated by the up-regulation of pro-inflammatory cytokines. Pro-inflammatory cytokines are also well-known to regulate the enzymes of the kynurenine pathway (KP), which is responsible for metabolizing tryptophan, a precursor in serotonin synthesis. Enhanced pro-inflammatory cytokine levels may over-activate the KP, leading to tryptophan depletion and reduced serotonin levels, which can subsequently precipitate depressive symptoms. Therefore, such mechanism might represent a possible link between the endocannabinoid system (ECS) and the KP in depression, via the inflammatory and dysregulated serotonergic component of the disorder. This review will summarize the data regarding those natural and synthetic cannabinoids that increase pro-inflammatory cytokines. Furthermore, the data on such cytokines associated with KP activation will be further reviewed accordingly. The interaction of the ECS and the KP has been postulated and demonstrated in some studies previously. This review will further contribute to this yet less explored connection and propose the KP to be the missing link between cannabinoid-induced inflammation and depressive symptoms.
Collapse
Affiliation(s)
- Ferenc Zádor
- Institute of Biochemistry, Biological Research Center, H-6726 Szeged, Hungary; (F.Z.); (S.D.); (E.S.); (C.T.); (S.B.)
| | - Sâmia Joca
- Department of Biomedicine, Aarhus University, 8000 Aarhus C, Denmark;
| | - Gábor Nagy-Grócz
- Faculty of Health Sciences and Social Studies, University of Szeged, H-6726 Szeged, Hungary;
- Albert Szent-Györgyi Clinical Center, Department of Neurology, Faculty of Medicine, University of Szeged, H-6725 Szeged, Hungary
| | - Szabolcs Dvorácskó
- Institute of Biochemistry, Biological Research Center, H-6726 Szeged, Hungary; (F.Z.); (S.D.); (E.S.); (C.T.); (S.B.)
- Department of Medical Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - Edina Szűcs
- Institute of Biochemistry, Biological Research Center, H-6726 Szeged, Hungary; (F.Z.); (S.D.); (E.S.); (C.T.); (S.B.)
- Doctoral School of Theoretical Medicine, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Csaba Tömböly
- Institute of Biochemistry, Biological Research Center, H-6726 Szeged, Hungary; (F.Z.); (S.D.); (E.S.); (C.T.); (S.B.)
| | - Sándor Benyhe
- Institute of Biochemistry, Biological Research Center, H-6726 Szeged, Hungary; (F.Z.); (S.D.); (E.S.); (C.T.); (S.B.)
| | - László Vécsei
- Albert Szent-Györgyi Clinical Center, Department of Neurology, Faculty of Medicine, University of Szeged, H-6725 Szeged, Hungary
- MTA-SZTE Neuroscience Research Group, University of Szeged, H-6725 Szeged, Hungary
- Department of Neurology, Interdisciplinary Excellence Center, University of Szeged, H-6725 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-545-351
| |
Collapse
|
45
|
Vorobieva OV, Fateeva VV. [Association of markers of endothelial dysfunction with depression in middle-aged patients with cerebral microangiopathy]. Zh Nevrol Psikhiatr Im S S Korsakova 2021; 121:7-11. [PMID: 34037348 DOI: 10.17116/jnevro20211210417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To assess the ratio of levels of peripheral markers of inflammation and biomarkers of endothelial dysfunction (ED) with the severity of depression in middle-aged patients with cerebral microangiopathy. MATERIAL AND METHODS In an observational study of outpatients (n=262, 42.1% of men, 57.9% of women, average age 54.2±7 years), the severity of depressive disorders was assessed with HADS. Levels of peripheral markers of endothelial inflammation (C-reactive protein (CRP), monocytic chemoattractant protein-1 (MCP-1)) and ED biomarkers (endothelin-1, endothelial NO synthase, vascular endothelial growth factor, desquamated endotheliocytes, S100 protein, von Willebrand factor, fibrinogen) were determined by enzyme immunoassay. The initial sample of patients is divided into two groups: with clinical (n=146) and subclinical (n=116) depression. Based on the indicators of the ED biomarkers, a factor analysis was performed to calculate the integrative indicator of endothelial function (IIEF). RESULTS Patients with clinically defined depression compared with patients with subclinical depression had an increased level of peripheral markers of inflammation (CRP 6.11 vs 2.03 mg/L; p<0.05; MCP-1 2.02 vs 0.66 ng/ml; p<0.05). The severity of depression was directly correlated with the level of peripheral markers of inflammation (CRP, r=0.85, p<0.05; MCP-1, r=0.8, p<0.05, respectively). Patients with clinically expressed depression were characterized by a lower IIEF compared with patients with subclinical depression (0.12±0.04 vs 1.14±0.3; p<0.05, respectively). Odds ratios adjusted for age, obesity, type 2 diabetes mellitus were as follows: 1.5; 95% CI (1.3-1.8), p<0.001 for CRP; 1.67; 95% CI (0.63-2.85), p<0.001 for MCP-1; 1.21; 95% CI (1.19-1.35), p<0.001 for IIEF. CONCLUSION Pro-inflammatory ED contributes to the development of depression in middle-aged patients with cerebral microangiopathy associated with arterial hypertension. The severity of depression depends on the degree of ED. The association between the degree of ED, the pro-inflammatory activity of the endothelium and the severity of depression is relatively independent of age, obesity, type 2 diabetes mellitus.
Collapse
Affiliation(s)
- O V Vorobieva
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - V V Fateeva
- Sechenov First Moscow State Medical University, Moscow, Russia
| |
Collapse
|
46
|
The kynurenine pathway in major depression: What we know and where to next. Neurosci Biobehav Rev 2021; 127:917-927. [PMID: 34029552 DOI: 10.1016/j.neubiorev.2021.05.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/27/2022]
Abstract
Major depression is a serious psychiatric disorder, occurring in up to 20 % of the population. Despite its devastating burden, the neurobiological changes associated with depression are not fully understood. A growing body of evidence suggests the kynurenine pathway is implicated in the pathophysiology of depression. In this review, we bring together the literature examining elements of the kynurenine pathway in depression and explore the implications for the pathophysiology and treatment of depression, while highlighting the gaps in the current knowledge. Current research indicates an increased potential for neurotoxic activity of the kynurenine pathway in peripheral blood samples but an increased activation of the putative neuroprotective arm in some brain regions in depression. The disconnect between these findings requires further investigation, with a greater research effort on elucidating the central effects of the kynurenine pathway in driving depression symptomology. Research investigating the benefits of targeting the kynurenine pathway centred on human brain findings and the heterogenous subtypes of depression will help guide the identification of effective drug targets in depression.
Collapse
|
47
|
Huang J, Tong J, Zhang P, Zhou Y, Cui Y, Tan S, Wang Z, Yang F, Kochunov P, Chiappelli J, Tian B, Tian L, Tan Y, Hong LE. Effects of neuroactive metabolites of the tryptophan pathway on working memory and cortical thickness in schizophrenia. Transl Psychiatry 2021; 11:198. [PMID: 33795641 PMCID: PMC8016899 DOI: 10.1038/s41398-021-01311-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 02/19/2021] [Accepted: 03/11/2021] [Indexed: 01/10/2023] Open
Abstract
A number of tryptophan metabolites known to be neuroactive have been examined for their potential associations with cognitive deficits in schizophrenia. Among these metabolites, kynurenic acid (KYNA), 5-hydroxyindole (5-HI), and quinolinic acid (QUIN) are documented in their diverse effects on α-7 nicotinic acetylcholine receptor (α7nAChR) and/or N-methyl-D-aspartate receptor (NMDAR), two of the receptor types thought to contribute to cognitive impairment in schizophrenia. In this study, serum levels of KYNA, 5-HI, and QUIN were measured in 195 patients with schizophrenia and in 70 healthy controls using liquid chromatography-tandem mass spectrometry; cognitive performance in MATRICS Consensus Cognitive Battery and cortical thickness measured by magnetic resonance imaging were obtained. Patients with schizophrenia had significantly lower serum KYNA (p < 0.001) and QUIN (p = 0.02) levels, and increased 5-HI/KYNA (p < 0.001) and QUIN/KYNA ratios (p < 0.001) compared with healthy controls. Multiple linear regression showed that working memory was positively correlated with serum 5-HI levels (t = 2.10, p = 0.04), but inversely correlated with KYNA concentrations (t = -2.01, p = 0.05) in patients. Patients with high 5-HI and low KYNA had better working memory than other subgroups (p = 0.01). Higher 5-HI levels were associated with thicker left lateral orbitofrontal cortex (t = 3.71, p = 2.94 × 10-4) in patients. The different effects of 5-HI and KYNA on working memory may appear consistent with their opposite receptor level mechanisms. Our findings appear to provide a new insight into the dynamic roles of tryptophan pathway metabolites on cognition, which may benefit novel therapeutic development that targets cognitive impairment in schizophrenia.
Collapse
Affiliation(s)
- Junchao Huang
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Jinghui Tong
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Ping Zhang
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yanfang Zhou
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yimin Cui
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Beijing, China
| | - Shuping Tan
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Zhiren Wang
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Fude Yang
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Peter Kochunov
- grid.411024.20000 0001 2175 4264Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD USA
| | - Joshua Chiappelli
- grid.411024.20000 0001 2175 4264Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD USA
| | - Baopeng Tian
- grid.414351.60000 0004 0530 7044Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Li Tian
- grid.10939.320000 0001 0943 7661Faculty of Medicine, Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Yunlong Tan
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China.
| | - L. Elliot Hong
- grid.411024.20000 0001 2175 4264Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD USA
| |
Collapse
|
48
|
A human stem cell-derived test system for agents modifying neuronal N-methyl-D-aspartate-type glutamate receptor Ca 2+-signalling. Arch Toxicol 2021; 95:1703-1722. [PMID: 33713149 PMCID: PMC8113295 DOI: 10.1007/s00204-021-03024-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/04/2021] [Indexed: 12/12/2022]
Abstract
Methods to assess neuronal receptor functions are needed in toxicology and for drug development. Human-based test systems that allow studies on glutamate signalling are still scarce. To address this issue, we developed and characterized pluripotent stem cell (PSC)-based neural cultures capable of forming a functional network. Starting from a stably proliferating neuroepithelial stem cell (NESC) population, we generate “mixed cortical cultures” (MCC) within 24 days. Characterization by immunocytochemistry, gene expression profiling and functional tests (multi-electrode arrays) showed that MCC contain various functional neurotransmitter receptors, and in particular, the N-methyl-d-aspartate subtype of ionotropic glutamate receptors (NMDA-R). As this important receptor is found neither on conventional neural cell lines nor on most stem cell-derived neurons, we focused here on the characterization of rapid glutamate-triggered Ca2+ signalling. Changes of the intracellular free calcium ion concentration ([Ca2+]i) were measured by fluorescent imaging as the main endpoint, and a method to evaluate and quantify signals in hundreds of cells at the same time was developed. We observed responses to glutamate in the low µM range. MCC responded to kainate and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), and a subpopulation of 50% had functional NMDA-R. The receptor was modulated by Mg2+, Zn2+ and Pb2+ in the expected ways, and various toxicologically relevant agonists (quinolinic acid, ibotenic acid, domoic acid) triggered [Ca2+]i responses in MCC. Antagonists, such as phencyclidine, ketamine and dextromethorphan, were also readily identified. Thus, the MCC developed here may fill an important gap in the panel of test systems available to characterize the effects of chemicals on neurotransmitter receptors.
Collapse
|
49
|
Dudzińska E, Szymona K, Kloc R, Kocki T, Gil-Kulik P, Bogucki J, Kocki J, Paduch R, Urbańska EM. Fractalkine, sICAM-1 and Kynurenine Pathway in Restrictive Anorexia Nervosa-Exploratory Study. Nutrients 2021; 13:nu13020339. [PMID: 33498837 PMCID: PMC7910978 DOI: 10.3390/nu13020339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/20/2021] [Accepted: 01/20/2021] [Indexed: 12/19/2022] Open
Abstract
The link between the kynurenine pathway and immunomodulatory molecules—fractalkine and soluble intercellular adhesion molecule-1 (sICAM-1)—in anorexia nervosa (AN) remains unknown. Fractalkine, sICAM-1, tryptophan (TRP), kynurenine (KYN), neuroprotective kynurenic acid (KYNA), neurotoxic 3-OH-kynurenine (3-OH-KYN), and the expression of mRNA for kynurenine aminotransferases (KAT1-3) were studied in 20 female patients with restrictive AN (mostly drug-free, all during first episode of the disease) and in 24 controls. In AN, serum fractalkine, but not sICAM-1, KYNA, KYN, TRP or 3-OH-KYN, was higher; ratios TRP/KYN, KYN/KYNA, KYN/3-OH-KYN and KYNA/3-OH-KYN were unaltered. The expression of the gene encoding KAT3, but not of genes encoding KAT1 and KAT2 (measured in blood mononuclear cells), was higher in patients with AN. In AN, fractalkine positively correlated with TRP, while sICAM-1 was negatively associated with 3-OH-KYN and positively linked with the ratio KYN/3-OH-KYN. Furthermore, TRP and fractalkine were negatively associated with the body mass index (BMI) in AN. Expression of KAT1, KAT2 and KAT3 did not correlate with fractalkine, sICAM-1 or BMI, either in AN or control. Increased fractalkine may be an independent factor associated with the restrictive type of AN. Excessive physical activity probably underlies increased expression of KAT3 observed among enrolled patients. Further, longitudinal studies on a larger cohort of patients should be aimed to clarify the contribution of fractalkine and KAT3 to the pathogenesis of AN.
Collapse
Affiliation(s)
- Ewa Dudzińska
- Chair of Public Health, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Kinga Szymona
- Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, 20-439 Lublin, Poland;
| | - Renata Kloc
- Laboratory of Cellular and Molecular Pharmacology, Chair and Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Tomasz Kocki
- Chair and Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Paulina Gil-Kulik
- Department of Clinical Genetics, Medical University of Lublin, 20-090 Lublin, Poland; (P.G.-K.); (J.K.)
| | - Jacek Bogucki
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Janusz Kocki
- Department of Clinical Genetics, Medical University of Lublin, 20-090 Lublin, Poland; (P.G.-K.); (J.K.)
| | - Roman Paduch
- Department of Virology and Immunology, Maria Curie-Skłodowska University of Lublin, 20-033 Lublin, Poland;
- Department of General Ophthalmology, Medical University of Lublin, 20-400 Lublin, Poland
| | - Ewa M. Urbańska
- Laboratory of Cellular and Molecular Pharmacology, Chair and Department of Experimental and Clinical Pharmacology, Medical University of Lublin, 20-090 Lublin, Poland;
- Correspondence:
| |
Collapse
|
50
|
Prefrontal α7nAChR Signaling Differentially Modulates Afferent Drive and Trace Fear Conditioning Behavior in Adolescent and Adult Rats. J Neurosci 2021; 41:1908-1916. [PMID: 33478990 DOI: 10.1523/jneurosci.1941-20.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/29/2020] [Accepted: 12/23/2020] [Indexed: 01/22/2023] Open
Abstract
Increased level of kynurenic acid is thought to contribute to the development of cognitive deficits in schizophrenia through an α7nAChR-mediated mechanism in the prefrontal cortex (PFC). However, it remains unclear to what extent disruption of PFC α7nAChR signaling impacts afferent transmission and its modulation of behavior. Using male rats, we found that PFC infusion of methyllycaconitine (MLA; α7nAChR antagonist) shifts ventral hippocampal-induced local field potential (LFP) suppression to LFP facilitation, an effect only observed in adults. Hippocampal stimulation can also elicit a GluN2B-mediated LFP potentiation (when PFC GABAAR is blocked) that is insensitive to MLA. Conversely, PFC infusion of MLA diminished the gain of amygdalar transmission, which is already enabled by postnatal day (P)30. Behaviorally, the impact of prefrontal MLA on trace fear-conditioning and extinction was also age related. While freezing behavior during conditioning was reduced by MLA only in adults, it elicited opposite effects in adolescent and adult rats during extinction as revealed by the level of reduced and increased freezing response, respectively. We next asked whether the late-adolescent onset of α7nAChR modulation of hippocampal inputs contributes to the age-dependent effect of MLA during extinction. Data revealed that the increased freezing behavior elicited by MLA in adult rats could be driven by a dysregulation of the GluN2B transmission in the PFC. Collectively, these results indicate that distinct neural circuits are recruited during the extinction of trace fear memory in adolescents and adults, likely because of the late-adolescent maturation of the ventral hippocampal-PFC functional connectivity and its modulation by α7nAChR signaling.SIGNIFICANCE STATEMENT Abnormal elevation of the astrocyte-derived metabolite kynurenic acid in the prefrontal cortex (PFC) is thought to impair cognitive functions in schizophrenia through an α7nAChR-mediated mechanism. Here, we found that prefrontal α7nAChR signaling is recruited to control the gain of hippocampal and amygdalar afferent transmission in an input-specific, age-related manner during the adolescent transition to adulthood. Behaviorally, prefrontal α7nAChR modulation of trace fear memory was also age-related, likely because of the late-adolescent maturation of the ventral hippocampal pathway and its recruitment of PFC GABAergic transmission enabled by local α7nAChR signaling. Collectively, these results reveal that distinct α7nAChR-sensitive neural circuits contribute to regulate behavior responses in adolescents and adults, particularly those requiring proper integration of hippocampal and amygdalar inputs by the PFC.
Collapse
|