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Saengmearnuparp T, Pintana H, Apaijai N, Chunchai T, Thonusin C, Kongkaew A, Lojanapiwat B, Chattipakorn N, Chattipakorn SC. Long-term Treatment with a 5-Alpha-Reductase Inhibitor Alleviates Depression-like Behavior in Obese Male Rats. Behav Brain Res 2024; 472:115155. [PMID: 39032869 DOI: 10.1016/j.bbr.2024.115155] [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: 05/09/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Several studies have reported side effects of finasteride (FIN), such as anxiety/depression in young men. Obesity is also positively associated with anxiety/depression symptoms; however, the impacts of long-term FIN treatment and FIN withdrawal in young obese individuals are still elusive. The present study aimed to investigate the effect of long-term treatment and its withdrawal on anxiety/depression and brain pathologies in lean and obese adult male rats. Forty-eight male Wistar rats were equally divided into two groups and fed either a normal or high-fat diet. At age 13 weeks, rats in each dietary group were divided into three subgroups: 1) the control group receiving drinking water, 2) the long-term treatment group receiving FIN orally at 5 mg/kg/day for 6 weeks, and 3) the withdrawal group receiving FIN orally at 5 mg/kg/day for 2 weeks followed by a 4-week withdrawal period. Anxiety/depression-like behaviors, biochemical analysis, brain inflammation, oxidative stress, neuroactive steroids, brain metabolites, and microglial complexity were tested. The result showed that lean rats treated with long-term FIN and its withdrawal exhibited metabolic disturbances, depressive-like behavior, and both groups showed increased neurotoxic metabolites and reduced microglial complexity. Obesity itself led to metabolic disturbances and brain pathologies, including increased inflammation, oxidative stress, and quinolinic acid, as well as reduced microglial complexity, resulting in increased anxiety- and depression-like behaviors. Interestingly, the long-term FIN treatment group in obese rats showed attenuation of depressive-like behaviors, brain inflammation, and oxidative stress, along with increased brain antioxidants, suggesting the possible benefits of FIN in obese conditions.
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Affiliation(s)
- Thiraphat Saengmearnuparp
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Urology division, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Hiranya Pintana
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nattayaporn Apaijai
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Titikorn Chunchai
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chanisa Thonusin
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Aphisek Kongkaew
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Bannakij Lojanapiwat
- Urology division, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nipon Chattipakorn
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Siriporn C Chattipakorn
- Neurophysiology unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
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Alves LDF, Moore JB, Kell DB. The Biology and Biochemistry of Kynurenic Acid, a Potential Nutraceutical with Multiple Biological Effects. Int J Mol Sci 2024; 25:9082. [PMID: 39201768 PMCID: PMC11354673 DOI: 10.3390/ijms25169082] [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: 07/19/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 09/03/2024] Open
Abstract
Kynurenic acid (KYNA) is an antioxidant degradation product of tryptophan that has been shown to have a variety of cytoprotective, neuroprotective and neuronal signalling properties. However, mammalian transporters and receptors display micromolar binding constants; these are consistent with its typically micromolar tissue concentrations but far above its serum/plasma concentration (normally tens of nanomolar), suggesting large gaps in our knowledge of its transport and mechanisms of action, in that the main influx transporters characterized to date are equilibrative, not concentrative. In addition, it is a substrate of a known anion efflux pump (ABCC4), whose in vivo activity is largely unknown. Exogeneous addition of L-tryptophan or L-kynurenine leads to the production of KYNA but also to that of many other co-metabolites (including some such as 3-hydroxy-L-kynurenine and quinolinic acid that may be toxic). With the exception of chestnut honey, KYNA exists at relatively low levels in natural foodstuffs. However, its bioavailability is reasonable, and as the terminal element of an irreversible reaction of most tryptophan degradation pathways, it might be added exogenously without disturbing upstream metabolism significantly. Many examples, which we review, show that it has valuable bioactivity. Given the above, we review its potential utility as a nutraceutical, finding it significantly worthy of further study and development.
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Affiliation(s)
- Luana de Fátima Alves
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Building 220, Søltofts Plads, 2800 Kongens Lyngby, Denmark
| | - J. Bernadette Moore
- School of Food Science & Nutrition, University of Leeds, Leeds LS2 9JT, UK;
- Department of Biochemistry, Cell & Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 7ZB, UK
| | - Douglas B. Kell
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Building 220, Søltofts Plads, 2800 Kongens Lyngby, Denmark
- Department of Biochemistry, Cell & Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St., Liverpool L69 7ZB, UK
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3
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Medina-Rodríguez EM, Martínez-Raga J, Sanz Y. Intestinal Barrier, Immunity and Microbiome: Partners in the Depression Crime. Pharmacol Rev 2024; 76:956-969. [PMID: 39084934 DOI: 10.1124/pharmrev.124.001202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 08/02/2024] Open
Abstract
Depression is a highly prevalent disorder and a leading cause of disability worldwide. It has a major impact on the affected individual and on society as a whole. Regrettably, current available treatments for this condition are insufficient in many patients. In recent years, the gut microbiome has emerged as a promising alternative target for treating and preventing depressive disorders. However, the microbes that form this ecosystem do not act alone but are part of a complicated network connecting the gut and the brain that influences our mood. Host cells that are in intimate contact with gut microbes, such as the epithelial cells forming the gut barrier and the immune cells in their vicinity, play a key role in the process. These cells continuously shape immune responses to maintain healthy communication between gut microbes and the host. In this article, we review how the interplay among epithelial cells, the immune system, and gut microbes mediates gut-brain communication to influence mood. We also discuss how advances in our knowledge of the mechanisms underlying the gut-brain axis could contribute to addressing depression. SIGNIFICANCE STATEMENT: This review does not aim to systematically describe intestinal microbes that might be beneficial or detrimental for depression. We have adopted a novel point of view by focusing on potential mechanisms underlying the crosstalk between gut microbes and their intestinal environment to control mood. These pathways could be targeted by well defined and individually tailored dietary interventions, microbes, or microbial metabolites to ameliorate depression and decrease its important social and economic impact.
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Affiliation(s)
- Eva M Medina-Rodríguez
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
| | - José Martínez-Raga
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
| | - Yolanda Sanz
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
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4
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Ritz NL, Bastiaanssen TFS, Cowan CSM, Smith L, Theune N, Brocka M, Myers EM, Moloney RD, Moloney GM, Shkoporov AN, Draper LA, Hill C, Dinan TG, Slattery DA, Cryan JF. Social fear extinction susceptibility is associated with Microbiota-Gut-Brain axis alterations. Brain Behav Immun 2024; 120:315-326. [PMID: 38852762 DOI: 10.1016/j.bbi.2024.06.009] [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: 11/21/2023] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024] Open
Abstract
Social anxiety disorder is a common psychiatric condition that severely affects quality of life of individuals and is a significant societal burden. Although many risk factors for social anxiety exist, it is currently unknown how social fear sensitivity manifests biologically. Furthermore, since some individuals are resilient and others are susceptible to social fear, it is important to interrogate the mechanisms underpinning individual response to social fear situations. The microbiota-gut-brain axis has been associated with social behaviour, has recently been linked with social anxiety disorder, and may serve as a therapeutic target for modulation. Here, we assess the potential of this axis to be linked with social fear extinction processes in a murine model of social anxiety disorder. To this end, we correlated differential social fear responses with microbiota composition, central gene expression, and immune responses. Our data provide evidence that microbiota variability is strongly correlated with alterations in social fear behaviour. Moreover, we identified altered gene candidates by amygdalar transcriptomics that are linked with social fear sensitivity. These include genes associated with social behaviour (Armcx1, Fam69b, Kcnj9, Maoa, Serinc5, Slc6a17, Spata2, and Syngr1), inflammation and immunity (Cars, Ckmt1, Klf5, Maoa, Map3k12, Pex5, Serinc5, Sidt1, Spata2), and microbe-host interaction (Klf5, Map3k12, Serinc5, Sidt1). Together, these data provide further evidence for a role of the microbiota-gut-brain axis in social fear responses.
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Affiliation(s)
- Nathaniel L Ritz
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Thomaz F S Bastiaanssen
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Caitlin S M Cowan
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Linda Smith
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; School of Microbiology, University College Cork, Cork, T12K8AF, Ireland
| | - Nigel Theune
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Marta Brocka
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Eibhlís M Myers
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Rachel D Moloney
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Gerard M Moloney
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland
| | - Andrey N Shkoporov
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; School of Microbiology, University College Cork, Cork, T12K8AF, Ireland
| | - Lorraine A Draper
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; School of Microbiology, University College Cork, Cork, T12K8AF, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; School of Microbiology, University College Cork, Cork, T12K8AF, Ireland
| | - Timothy G Dinan
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Psychiatry and Neurobehavioural Science, University College Cork, Cork T12YT20, Ireland
| | - David A Slattery
- Dept. of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Frankfurt 60528, Germany
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork T12YT20, Ireland; Dept. of Anatomy and Neuroscience, University College Cork, Cork T12YT20, Ireland.
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Rawls A, Nyugen D, Dziabis J, Anbarci D, Clark M, Dzirasa K, Bilbo S. Microglial MyD88-dependent pathways are regulated in a sex-specific manner in the context of HMGB1-induced anxiety. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.22.590482. [PMID: 38712142 PMCID: PMC11071353 DOI: 10.1101/2024.04.22.590482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Chronic stress is a significant risk factor for the development and recurrence of anxiety disorders. Chronic stress impacts the immune system, causing microglial functional alterations in the medial prefrontal cortex (mPFC), a brain region involved in the pathogenesis of anxiety. High mobility group box 1 protein (HMGB1) is an established modulator of neuronal firing and a potent pro-inflammatory stimulus released from neuronal and non-neuronal cells following stress. HMGB1, in the context of stress, acts as a danger-associated molecular pattern (DAMP), instigating robust proinflammatory responses throughout the brain, so much so that localized drug delivery of HMGB1 alters behavior in the absence of any other forms of stress, i.e., social isolation, or behavioral stress models. Few studies have investigated the molecular mechanisms that underlie HMGB1-associated behavioral effects in a cell-specific manner. The aim of this study is to investigate cellular and molecular mechanisms underlying HMGB1-induced behavioral dysfunction with regard to cell-type specificity and potential sex differences. Here, we report that both male and female mice exhibited anxiety-like behavior following increased HMGB1 in the mPFC as well as changes in microglial morphology. Interestingly, our results demonstrate that HMGB1-induced anxiety may be mediated by distinct microglial MyD88-dependent mechanisms in females compared to males. This study supports the hypothesis that MyD88 signaling in microglia may be a crucial mediator of the stress response in adult female mice.
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He H, Zhang X, He H, Xiao C, Xu G, Li L, Liu YE, Yang C, Zhou T, You Z, Zhang J. Priming of hippocampal microglia by IFN-γ/STAT1 pathway impairs social memory in mice. Int Immunopharmacol 2024; 134:112191. [PMID: 38759369 DOI: 10.1016/j.intimp.2024.112191] [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: 11/07/2023] [Revised: 03/29/2024] [Accepted: 04/29/2024] [Indexed: 05/19/2024]
Abstract
Social behavior is inextricably linked to the immune system. Although IFN-γ is known to be involved in social behavior, yet whether and how it encodes social memory remains unclear. In the current study, we injected with IFN-γ into the lateral ventricle of male C57BL/6J mice, and three-chamber social test was used to examine the effects of IFN-γ on their social preference and social memory. The morphology of microglia in the hippocampus, prelimbic cortex and amygdala was examined using immunohistochemistry, and the phenotype of microglia were examined using immunohistochemistry and enzyme-linked immunosorbent assays. The IFN-γ-injected mice were treated with lipopolysaccharide, and effects of IFN-γ on behavior and microglial responses were evaluated. STAT1 pathway and microglia-neuron interactions were examined in vivo or in vitro using western blotting and immunohistochemistry. Finally, we use STAT1 inhibitor or minocycline to evaluated the role of STAT1 in mediating the microglial priming and effects of primed microglia in IFN-γ-induced social dysfunction. We demonstrated that 500 ng of IFN-γ injection results in significant decrease in social index and social novelty recognition index, and induces microglial priming in hippocampus, characterized by enlarged cell bodies, shortened branches, increased expression of CD68, CD86, CD74, CD11b, CD11c, CD47, IL-33, IL-1β, IL-6 and iNOS, and decreased expression of MCR1, Arg-1, IGF-1 and BDNF. This microglia subpopulation is more sensitive to LPS challenge, which characterized by more significant morphological changes and inflammatory responses, as well as induced increased sickness behaviors in mice. IFN-γ upregulated pSTAT1 and STAT1 and promoted the nuclear translocation of STAT1 in the hippocampal microglia and in the primary microglia. Giving minocycline or STAT1 inhibitor fludarabin blocked the priming of hippocampal microglia induced by IFN-γ, ameliorated the dysfunction in hippocampal microglia-neuron interactions and synapse pruning by microglia, thereby improving social memory deficits in IFN-γ injected mice. IFN-γ initiates STAT1 pathway to induce priming of hippocampal microglia, thereby disrupts hippocampal microglia-neuron interactions and neural circuit link to social memory. Blocking STAT1 pathway or inhibiting microglial priming may be strategies to reduce the effects of IFN-γ on social behavior.
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Affiliation(s)
- Haili He
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Xiaomei Zhang
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Hui He
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Chenghong Xiao
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Gaojie Xu
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Liangyuan Li
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Yu-E Liu
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chengyan Yang
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Tao Zhou
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Zili You
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Jinqiang Zhang
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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Ye Z, Yang S, Lu L, Zong M, Fan L, Kang C. Unlocking the potential of the 3-hydroxykynurenine/kynurenic acid ratio: a promising biomarker in adolescent major depressive disorder. Eur Arch Psychiatry Clin Neurosci 2024:10.1007/s00406-024-01815-x. [PMID: 38819463 DOI: 10.1007/s00406-024-01815-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 04/19/2024] [Indexed: 06/01/2024]
Abstract
Metabolites disruptions in tryptophan (TRP) and kynurenine pathway (KP) are believed to disturb neurotransmitter homeostasis and contribute to depressive symptoms. This study aims to investigate serum levels of KP metabolites in adolescent major depressive disorder (AMDD), and examine their relationship with depression severities. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to analyze serum levels of TRP, kynurenic acid (KYNA), kynurenine (KYN), and 3-hydroxy-kynurenine (3-HK) in 143 AMDD participants and 98 healthy controls (HC). Clinical data, including Children's Depression Inventory (CDI) scores, were collected and analyzed using statistical methods, such as ANOVA, logistic regression, Receiver operating characteristic curve analysis and a significance level of p < 0.05 was used for all analyses. AMDD showed significantly decreased serum levels of KYNA (-25.5%), KYN (-14.2%), TRP (-11.0%) and the KYNA/KYN ratio (-11.9%) compared to HC (p < 0.01). Conversely, significant increases were observed in 3-HK levels (+50.4%), the 3-HK/KYNA ratio (+104.3%) and the 3-HK/KYN ratio (+93.0%) (p < 0.01). Logistic regression analysis identified increased level of 3-HK as a contributing factor to AMDD, while increased level of KYNA acted as a protective factor against AMDD. The 3-HK/KYNA ratio demonstrated an area under the curve (AUC) of 0.952. This study didn't explore AMDD's inflammatory status and its metabolites relationship explicitly. These findings indicate that metabolites of TRP and KP may play a crucial role in the pathogenesis of AMDD, emphasizing the potential of the 3-HK/KYNA ratio as a laboratory biomarker for early detection and diagnosis of AMDD.
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Affiliation(s)
- Zhihan Ye
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China
| | - Shuran Yang
- Department of Psychosomatic Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China
| | - Liu Lu
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China
| | - Ming Zong
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China
| | - Lieying Fan
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China
| | - Chuanyuan Kang
- Department of Psychosomatic Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, China.
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Antici EE, Kuhlman KR, Treanor M, Craske MG. Salivary CRP predicts treatment response to virtual reality exposure therapy for social anxiety disorder. Brain Behav Immun 2024; 118:300-309. [PMID: 38467380 DOI: 10.1016/j.bbi.2024.03.002] [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: 10/04/2023] [Revised: 02/17/2024] [Accepted: 03/02/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Social anxiety disorder (SAD) places a profound burden on public health and individual wellbeing. Systemic inflammation may be important to the onset and maintenance of SAD, and anti-inflammatory treatments have shown promise in relieving symptoms of SAD. In the present study, we conducted secondary analyses on data from a randomized clinical trial to determine whether C-reactive protein (CRP) concentrations and social anxiety symptoms decreased over the course of virtual reality exposure therapy, and whether changes in social anxiety symptoms as a function of treatment varied as a function of CRP. METHOD Adult participants (N = 78) with a diagnosis of SAD (59 % female) were randomized to receive exposure therapy alone, or exposure therapy supplemented with scopolamine. Social anxiety symptoms, salivary CRP, and subjective units of distress were measured across three exposure therapy sessions, at a post-treatment extinction retest, and at a 1-month follow-up. RESULTS CRP decreased over the course of treatment, b = -0.03 (SE = 0.01), p =.02 95 %CI [-0.06, -0.004], as did all social anxiety symptom domains and subjective distress. Higher CRP was associated with greater decreases from pre-treatment to 1-month follow-up in fear, b = -0.45 (SE = 0.15), p =.004 95 %CI [-0.74, -0.15], and avoidance, b = -0.62 (SE = 0.19), p =.002 95 %CI [-1.01, -0.23], and in-session subjective distress from pre-treatment to post-treatment, b = -0.42 (SE = 0.21), p =.05 95 %CI [-0.83, -0.001]. However, declines in CRP were not correlated with declines in fear, r = -0.07, p =.61, or avoidance, r = -0.10, p =.49, within-persons. CONCLUSIONS Virtual reality exposure therapy may be associated with an improvement in systemic inflammation in patients with severe SAD. Pre-treatment CRP may also be of value in predicting which patients stand to benefit the most from this treatment.
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Affiliation(s)
- Elizabeth E Antici
- Department of Psychological Science, School of Social Ecology, University of California, Irvine, Irvine, CA, USA.
| | - Kate R Kuhlman
- Department of Psychological Science, School of Social Ecology, University of California, Irvine, Irvine, CA, USA; Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michael Treanor
- Department of Psychology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michelle G Craske
- Department of Psychology, University of California, Los Angeles, Los Angeles, CA, USA
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Holthuijsen DDB, van Roekel EH, Bours MJL, Ueland PM, Breukink SO, Janssen-Heijnen MLG, Keulen ETP, Gigic B, Gsur A, Meyer K, Ose J, Ulvik A, Weijenberg MP, Eussen SJPM. Longitudinal associations of plasma kynurenines and ratios with anxiety and depression scores in colorectal cancer survivors up to 12 months post-treatment. Psychoneuroendocrinology 2024; 163:106981. [PMID: 38335827 DOI: 10.1016/j.psyneuen.2024.106981] [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: 09/19/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024]
Abstract
INTRODUCTION Colorectal cancer (CRC) survivors often experience neuropsychological symptoms, including anxiety and depression. Mounting evidence suggests a role for the kynurenine pathway in these symptoms due to potential neuroprotective and neurotoxic roles of involved metabolites. However, evidence remains inconclusive and insufficient in cancer survivors. Thus, we aimed to explore longitudinal associations of plasma tryptophan, kynurenines, and their established ratios with anxiety and depression in CRC survivors up to 12 months post-treatment. METHODS In 249 stage I-III CRC survivors, blood samples were collected at 6 weeks, 6 months, and 12 months post-treatment to analyze plasma concentrations of tryptophan and kynurenines using liquid-chromatography tandem-mass spectrometry (LC/MS-MS). At the same timepoints, anxiety and depression were assessed using the Hospital Anxiety and Depression Scale (HADS). Confounder-adjusted linear mixed models were used to analyze longitudinal associations. Sensitivity analyses with false discovery rate (FDR) correction were conducted to adjust for multiple testing. RESULTS Higher plasma tryptophan concentrations were associated with lower depression scores (β as change in depression score per 1 SD increase in the ln-transformed kynurenine concentration: -0.31; 95%CI: -0.56,-0.05), and higher plasma 3-hydroxyanthranilic acid concentrations with lower anxiety scores (-0.26; -0.52,-0.01). A higher 3-hydroxykynurenine ratio (HKr; the ratio of 3-hydroxykynurenine to the sum of kynurenic acid, xanthurenic acid, anthranilic acid, and 3-hydroxyanthranilic acid) was associated with higher depression scores (0.34; 0.04,0.63) and higher total anxiety and depression scores (0.53; 0.02,1.04). Overall associations appeared to be mainly driven by inter-individual associations, which were statistically significant for tryptophan with depression (-0.60; -1.12,-0.09), xanthurenic acid with total anxiety and depression (-1.04; -1.99,-0.10), anxiety (-0.51; -1.01,-0.01), and depression (-0.56; -1.08,-0.05), and kynurenic-acid-to-quinolinic-acid ratio with depression (-0.47; -0.93,-0.01). In sensitivity analyses, associations did not remain statistically significant after FDR adjustment. CONCLUSION We observed that plasma concentrations of tryptophan, 3-hydroxyanthranilic acid, xanthurenic acid, 3-hydroxykynurenine ratio, and kynurenic-acid-to-quinolinic-acid ratio tended to be longitudinally associated with anxiety and depression in CRC survivors up to 12 months post-treatment. Future studies are warranted to further elucidate the association of plasma kynurenines with anxiety and depression.
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Affiliation(s)
- Daniëlle D B Holthuijsen
- Department of Epidemiology, CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands; Department of Epidemiology, GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands.
| | - Eline H van Roekel
- Department of Epidemiology, GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Martijn J L Bours
- Department of Epidemiology, GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | | | - Stéphanie O Breukink
- Department of Surgery, GROW School for Oncology and Reproduction, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - Maryska L G Janssen-Heijnen
- Department of Epidemiology, GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands; Department of Clinical Epidemiology, VieCuri Medical Centre, Venlo, the Netherlands
| | - Eric T P Keulen
- Department of Internal Medicine and Gastroenterology, Zuyderland Medical Centre Sittard-Geleen, Geleen, the Netherlands
| | - Biljana Gigic
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Andrea Gsur
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
| | | | - Jennifer Ose
- University of Utah, Salt Lake City, UT, USA; Huntsman Cancer Institute, Salt Lake City, UT, USA
| | | | - Matty P Weijenberg
- Department of Epidemiology, GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Simone J P M Eussen
- Department of Epidemiology, CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands; Department of Epidemiology, CAPHRI School for Care and Public Health Research Institute, Maastricht University, Maastricht, the Netherlands
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Chen W, Tian Y, Gou M, Wang L, Tong J, Zhou Y, Feng W, Li Y, Chen S, Liu Y, Wang Z, Pan S, Zhang P, Huang J, Yang X, Li CSR, Tian L, Hong LE, Tan Y. Role of the immune-kynurenine pathway in treatment-resistant schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry 2024; 130:110926. [PMID: 38147973 DOI: 10.1016/j.pnpbp.2023.110926] [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: 10/26/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND The immune-inflammatory response system (IRS) and kynurenine pathway (KP) have been implicated in the pathophysiology of schizophrenia. Studies have shown inflammation-related effects on KP metabolism in patients with schizophrenia. This study investigated the relationship between KP metabolites, IRS, and the compensatory immune-regulatory reflex system (CIRS) in patients with treatment-resistant schizophrenia (TRS). METHODS Patients with (n = 53) and without TRS (n = 47), and healthy controls (HCs, n = 49) were enrolled. We quantified plasma levels of pro-inflammatory cytokines (interleukin [IL]-1β, IL-2, IL-6, soluble(s)IL-6 receptor, IL-8, IL-12, IL-17, IL-18, interferon-γ, and tumor necrosis factor[TNF]-α) and anti-inflammatory cytokines (IL-1 receptor antagonist, IL-4, IL-10, tumor growth factor [TGF]-β1, TGF-β2, soluble (s) IL-2 receptor subunit α, sIL-2 receptor subunit β, and sTNF-α receptor 1) and calculated the IRS/CIRS ratio. We also tested serum metabolites of the KP, including kynurenine (KYN), kynurenic acid (KYNA), and quinolinic acid (QUIN), along with the QUIN/KYNA ratio. RESULTS Patients with TRS had significantly higher IRS/CIRS ratio than non-TRS patients (p = 0.002) and HCs (p = 0.007), and significantly lower KYN (p = 0.001) and KYNA (p = 0.01) levels than HCs. Binary logistic regression analysis revealed that a younger age at illness onset (odds ratio [OR] = 0.91, p = 0.02) and a higher IRS/CIRS ratio (OR = 1.22; p = 0.007) were risk factors for patients with TRS. After further adjusted for age of onset, the QUIN/KYNA ratio (β = 0.97; p = 0.02) significantly moderated the relationship between IRS/CIRS and TRS, showing that in the higher QUIN/KYNA condition, higher IRS/CIRS ratio were significantly and more likely to be associated with patients with TRS (β = 0.12, z = 3.19, p = 0.001), whereas in the low QUIN/KYNA condition, the association between IRS/CIRS ratio and TRS was weak and insignificant. CONCLUSIONS The peripheral immune response was imbalanced in TRS and was preferentially directed towards the IRS compared to patients without TRS and healthy controls, which is likely to play a role in neurotoxicity. Additionally, peripheral KP activation was also imbalanced, as evidenced by significantly reduced KYN and KYNA levels in patients with TRS compared to healthy controls, but none of KP metabolisms were significantly difference in non-TRS patients compared to healthy controls. QUIN/KYNA ratio involving to the degree of activation of NMDA receptors, indicated the neurotoxic level of the KP activation. The interaction between IRS/CIRS and QUIN/KYNA ratio was significant in predicting TRS, and our findings suggest a potential role for the immune-kynurenine pathway in TRS pathogenesis.
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Affiliation(s)
- Wenjin Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yichang Tian
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China; Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Mengzhuang Gou
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Leilei Wang
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Jinghui Tong
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yanfang Zhou
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Wei Feng
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yanli Li
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Song Chen
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Yongchang Liu
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Zhiren Wang
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Shujuan Pan
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Ping Zhang
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Junchao Huang
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Xiaokui Yang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China; Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Chiang-Shan R Li
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Li Tian
- Institute of Biomedicine and Translational Medicine, Department of Physiology, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - L Elliot Hong
- Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center, Houston, TX 77030, USA
| | - Yunlong Tan
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China.
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11
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Gliozzi M, Coppoletta AR, Cardamone A, Musolino V, Carresi C, Nucera S, Ruga S, Scarano F, Bosco F, Guarnieri L, Macrì R, Mollace R, Belzung C, Mollace V. The dangerous "West Coast Swing" by hyperglycaemia and chronic stress in the mouse hippocampus: Role of kynurenine catabolism. Pharmacol Res 2024; 201:107087. [PMID: 38301816 DOI: 10.1016/j.phrs.2024.107087] [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: 09/27/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/03/2024]
Abstract
Growing epidemiological studies highlight a bi-directional relationship between depressive symptoms and diabetes mellitus. However, the detrimental impact of their co-existence on mental health suggests the need to treat this comorbidity as a separate entity rather than the two different pathologies. Herein, we characterized the peculiar mechanisms activated in mouse hippocampus from the concurrent development of hyperglycaemia, characterizing the different diabetes subtypes, and chronic stress, recognized as a possible factor predisposing to major depression. Our work demonstrates that kynurenine overproduction, leading to apoptosis in the hippocampus, is triggered in a different way depending on hyperglycaemia or chronic stress. Indeed, in the former, kynurenine appears produced by infiltered macrophages whereas, in the latter, peripheral kynurenine preferentially promotes resident microglia activation. In this scenario, QA, derived from kynurenine catabolism, appears a key mediator causing glutamatergic synapse dysfunction and apoptosis, thus contributing to brain atrophy. We demonstrated that the coexistence of hyperglycaemia and chronic stress worsened hippocampal damage through alternative mechanisms, such as GLUT-4 and BDNF down-expression, denoting mitochondrial dysfunction and apoptosis on one hand and evoking the compromission of neurogenesis on the other. Overall, in the degeneration of neurovascular unit, hyperglycaemia and chronic stress interacted each other as the partners of a "West Coast Swing" in which the leading role can be assumed alternatively by each partner of the dance. The comprehension of these mechanisms can open novel perspectives in the management of diabetic/depressed patients, but also in the understanding the pathogenesis of other neurodegenerative disease characterized by the compromission of hippocampal function.
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Affiliation(s)
- Micaela Gliozzi
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy.
| | - Anna Rita Coppoletta
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Antonio Cardamone
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Vincenzo Musolino
- Laboratory of Pharmaceutical Biology, Department of Health Sciences, Institute of Research for Food Safety & Health IRC-FSH, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy.
| | - Cristina Carresi
- Veterinary Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Saverio Nucera
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Stefano Ruga
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Federica Scarano
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Francesca Bosco
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Lorenza Guarnieri
- Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Roberta Macrì
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
| | - Rocco Mollace
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy; Department of Systems Medicine, University of Rome Tor Vergata, Italy
| | - Catherine Belzung
- UMR 1253, iBrain, Inserm, Université de Tours, CEDEX 1, 37032 Tours, France
| | - Vincenzo Mollace
- Pharmacology Laboratory, Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy
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12
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Ye F, Dong MC, Xu CX, Jiang N, Chang Q, Liu XM, Pan RL. Effects of different chronic restraint stress periods on anxiety- and depression-like behaviors and tryptophan-kynurenine metabolism along the brain-gut axis in C57BL/6N mice. Eur J Pharmacol 2024; 965:176301. [PMID: 38145646 DOI: 10.1016/j.ejphar.2023.176301] [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: 10/22/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 12/27/2023]
Abstract
Chronic restraint stress (CRS) is a widely used stimulus to induce anxiety- and depression-like behaviors, linked to alterations in tryptophan-kynurenine (TRP-KYN) metabolism in animals. This study assessed the effects of different CRS periods on anxiety- or depression-like behaviors and TRP-KYN metabolism along brain-gut axis in C57BL/6N mice. Results showed that one-week CRS decreased the open arm entries of mice in elevated plus maze and delayed latency of feeding in novelty suppressed feeding test. Four-week CRS reduced sucrose preference, increases forced swimming immobility time, and also induced anxiety-like behaviors of mice. UPLC-MS/MS analysis revealed decreased levels of the neurotoxic 3-hydroxykynurenine (3-HK) and quinolinic acid (QA), and an increase in the neuroprotective kynurenic acid (KA) in the hippocampus of one-week CRS mice; meanwhile, four-week CRS mice displayed a reduction in KA and increases in 3-HK and QA. In the colon, both one-week and four-week CRS mice exhibited significant reductions in 3-HK and QA, with a marked increase of KA exclusively in four-week CRS mice. Briefly, one-week CRS only induced anxiety-like behaviors with hippocampal neuroprotection in TRP-KYN metabolism, whereas four-week CRS caused anxiety- and depression-like behaviors with neurotoxicity. In the colon, during both CRS periods, KYN was metabolized in the direction of NAD+ production. However, four-week CRS triggered intestinal inflammation risk with increased KA. Summarily, slightly short-term stress has beneficial effects on mice, while prolonged chronic stress can lead to pathological changes. This study offers valuable insights into stress-induced emotional disturbances.
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Affiliation(s)
- Fan Ye
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Meng-Chen Dong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Chen-Xi Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Ning Jiang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Xin-Min Liu
- Institute of Drug Discovery Technology, Ningbo University, No. 818, Feng Hua Road, Jiangbei District, Ningbo, 315000, China.
| | - Rui-Le Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China.
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13
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Diaz Heijtz R. Gut microbiota: A key susceptibility factor in social anxiety disorder. Proc Natl Acad Sci U S A 2024; 121:e2320425121. [PMID: 38252816 PMCID: PMC10835049 DOI: 10.1073/pnas.2320425121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
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14
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Ritz NL, Brocka M, Butler MI, Cowan CSM, Barrera-Bugueño C, Turkington CJR, Draper LA, Bastiaanssen TFS, Turpin V, Morales L, Campos D, Gheorghe CE, Ratsika A, Sharma V, Golubeva AV, Aburto MR, Shkoporov AN, Moloney GM, Hill C, Clarke G, Slattery DA, Dinan TG, Cryan JF. Social anxiety disorder-associated gut microbiota increases social fear. Proc Natl Acad Sci U S A 2024; 121:e2308706120. [PMID: 38147649 PMCID: PMC10769841 DOI: 10.1073/pnas.2308706120] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/05/2023] [Indexed: 12/28/2023] Open
Abstract
Social anxiety disorder (SAD) is a crippling psychiatric disorder characterized by intense fear or anxiety in social situations and their avoidance. However, the underlying biology of SAD is unclear and better treatments are needed. Recently, the gut microbiota has emerged as a key regulator of both brain and behaviour, especially those related to social function. Moreover, increasing data supports a role for immune function and oxytocin signalling in social responses. To investigate whether the gut microbiota plays a causal role in modulating behaviours relevant to SAD, we transplanted the microbiota from SAD patients, which was identified by 16S rRNA sequencing to be of a differential composition compared to healthy controls, to mice. Although the mice that received the SAD microbiota had normal behaviours across a battery of tests designed to assess depression and general anxiety-like behaviours, they had a specific heightened sensitivity to social fear, a model of SAD. This distinct heightened social fear response was coupled with changes in central and peripheral immune function and oxytocin expression in the bed nucleus of the stria terminalis. This work demonstrates an interkingdom basis for social fear responses and posits the microbiome as a potential therapeutic target for SAD.
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Affiliation(s)
- Nathaniel L. Ritz
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Marta Brocka
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Mary I. Butler
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - Caitlin S. M. Cowan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Camila Barrera-Bugueño
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Christopher J. R. Turkington
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Lorraine A. Draper
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Thomaz F. S. Bastiaanssen
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Valentine Turpin
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Lorena Morales
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - David Campos
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Cassandra E. Gheorghe
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - Anna Ratsika
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Virat Sharma
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Anna V. Golubeva
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
| | - Maria R. Aburto
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Andrey N. Shkoporov
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Gerard M. Moloney
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
| | - Colin Hill
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- School of Microbiology, University College Cork, CorkT12K8AF, Ireland
| | - Gerard Clarke
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - David A. Slattery
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Frankfurt60528, Germany
| | - Timothy G. Dinan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, CorkT12YT20, Ireland
| | - John F. Cryan
- Alimentary Pharmabiotic Centre Microbiome Ireland, University College Cork, CorkT12YT20, Ireland
- Department of Anatomy and Neuroscience, University College Cork, CorkT12YT20, Ireland
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Yildirim V, Simsek S, Cetin I, Dokuyucu R. Kynurenine, Kynurenic Acid, Quinolinic Acid and Interleukin-6 Levels in the Serum of Patients with Autism Spectrum Disorder. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1906. [PMID: 38003955 PMCID: PMC10673218 DOI: 10.3390/medicina59111906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/26/2023]
Abstract
Background and Objectives: It is known that inflammatory processes play a role in the pathogenesis of autism spectrum disorder (ASD). It is also reported that immune activation induces the kynurenine pathway (KP), as known as the tryptophan destruction pathway. In our study, we aimed to investigate whether the serum levels of KP products and interleukin (IL)-6 activating indolamine 2-3 dioxygenase (IDO) enzyme are different in healthy developing children and children with ASD. Materials and Methods: Forty-three ASD children aged 2-9 were included in this study. Forty-two healthy developing children, similar to the patient group in terms of age and gender, were selected as the control group. Serum levels of kynurenic acid, kynurenine, quinolinic acid and IL-6 were analyzed using the ELISA method. ASD severity was evaluated with the Autism Behavior Checklist (ABC). Results: The mean age of children with ASD was 42.4 ± 20.5 months, and that of healthy controls was 48.1 ± 15.8 months. While the serum levels of kynurenic acid, kynurenine and interleukin-6 were higher in the group with ASD (p < 0.05), there was no significant difference (p > 0.05) in terms of the quinolinic acid level. There was no significant difference between the ABC total and subscale scores of children with ASD and biochemical parameters (p > 0.05). Conclusions: We conclude that these biomarkers must be measured in all ASD cases. They may be important for the diagnosis of ASD.
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Affiliation(s)
- Veli Yildirim
- Special Clinic, Department of Child Psychiatry, Yenişehir, Mersin 33110, Turkey;
| | - Seref Simsek
- Special Clinic, Department of Child Psychiatry, Antalya 07000, Turkey;
| | - Ihsan Cetin
- Department of Nutrition and Dietetics, School of Health Sciences, Batman University, Batman 72040, Turkey;
| | - Recep Dokuyucu
- Department of Physiology, School of Medicine, Atlas University, Istanbul 34413, Turkey
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16
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Díez-Solinska A, Azkona G, Muñoz-Culla M, Beitia-Oyarzabal G, Goñi-Balentziaga O, Gómez-Lazaro E, Vegas O. The role of sociability in social instability stress: Behavioral, neuroendocrine and monoaminergic effects. Physiol Behav 2023; 270:114306. [PMID: 37516231 DOI: 10.1016/j.physbeh.2023.114306] [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: 05/18/2023] [Revised: 07/10/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Extensive literature has reported a link between social stress and mental health. In this complex relationship, individual strategies for coping with social stress are thought to have a possible modulating effect, with sociability being a key factor. Despite the higher incidence of affective disorders in females and sex-related neurochemical differences, female populations have been understudied. The aim of the present study was, therefore, to analyze the behavioral, neuroendocrine, and neurochemical effects of stress in female OF1 mice, paying special attention to social connectedness (female mice with high vs low sociability). To this end, subjects were exposed to the Chronic Social Instability Stress (CSIS) model for four weeks. Although female mice exposed to CSIS had increased arousal, there was no evidence of depressive-like behavior. Neither did exposure to CSIS affect corticosterone levels, although it did increase the MR/GR ratio by decreasing GR expression. Female mice exposed to CSIS had higher noradrenaline and dopamine levels in the hippocampus and striatum respectively, with a lower monoaminergic turnover, resulting in an increased arousal. CSIS increased serotonin levels in both the hippocampus and striatum. Similarly, CSIS was found to reduce kynurenic acid, 3-HK, and IDO and iNOS enzyme levels in the hippocampus. Interestingly, the observed decrease in IDO synthesis and the increased serotonin and dopamine levels in the striatum were only found in subjects with high sociability. These highly sociable female mice also had significantly lower levels of noradrenaline in the striatum after CSIS application. Overall, our model has produced neuroendocrine and neurochemical but not behavioral changes, so it has not allowed us to study sociability in depth. Therefore, a model that induces both molecular and behavioral phenotypes should be applied to determine the role of sociability.
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Affiliation(s)
- Alina Díez-Solinska
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| | - Garikoitz Azkona
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain.
| | - Maider Muñoz-Culla
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain; Biodonostia Institute, 20018 Donostia-San Sebastian, Spain
| | - Garikoitz Beitia-Oyarzabal
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| | - Olatz Goñi-Balentziaga
- Department of Clinical and Health Psychology, and Research Methods, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| | - Eneritz Gómez-Lazaro
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| | - Oscar Vegas
- Department of Basic Psychological Processes and their Development, School of Psychology, University of the Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain; Biodonostia Institute, 20018 Donostia-San Sebastian, Spain
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17
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Shangguan F, Chen Z, Lv Y, Zhang XY. Interaction between high interleukin-2 and high cortisol levels is associated with psychopathology in patients with chronic schizophrenia. J Psychiatr Res 2023; 165:255-263. [PMID: 37541091 DOI: 10.1016/j.jpsychires.2023.07.039] [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: 02/23/2023] [Revised: 06/20/2023] [Accepted: 07/29/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND Both cortisol and interleukins appear at abnormal levels in schizophrenia. Our previous study has shown that cortisol and interleukins are associated with psychopathology and response to antipsychotic medications in a relatively small sample size of patients with schizophrenia. The current study was designed to investigate how cortisol, interleukins (ILs) and their interactions would correlate with clinical presentation in a relatively large sample size of patients with schizophrenia. METHODS We compared serum cortisol, IL-2, IL-6, and IL-8 levels in 162 medicated schizophrenia patients (including 27 patients in remission) and 62 healthy controls. Serum levels of cortisol and interleukins were measured by radioimmunoassay and quantitative ELISA, respectively. Clinical symptoms were assessed according to the Positive and Negative Syndrome Scale (PANSS). RESULTS Patients with schizophrenia had significantly higher levels of cortisol and IL-2 compared to controls. Patients in remission had higher levels of IL-6 than non-remitting patients. PANSS positive symptoms, general psychopathology, cortisol and IL-2 were the most central nodes in the cortisol-IL-symptom network. The interaction between cortisol and IL-2 was associated with PANSS positive symptoms, general psychopathology and depressive factor. For patients with cortisol level above the median, IL-2 was negatively associated with PANSS positive symptoms and general psychopathology. CONCLUSIONS Our results indicated that the interaction between cytokines and cortisol may be associated with the pathophysiology of some symptoms in chronic schizophrenia. In particular, the interaction between cortisol and IL-2 is associated with the clinical phenotypes of schizophrenia.
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Affiliation(s)
- Fangfang Shangguan
- Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, Beijing, 100037, China
| | - Ziwei Chen
- Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, Beijing, 100037, China
| | - Yue Lv
- Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, Beijing, 100037, China
| | - Xiang-Yang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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18
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Scriven M, McSweeney A, O'Carroll T, Morkl S, Butler MI. The Muscle-Gut-Brain Axis and Psychiatric Illness. Adv Biol (Weinh) 2023; 7:e2200214. [PMID: 37080945 DOI: 10.1002/adbi.202200214] [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: 08/03/2022] [Revised: 02/07/2023] [Indexed: 04/22/2023]
Abstract
The microbiota-gut-brain axis (MGBA) has been the subject of much research over the past decade, offering an exciting new paradigm for the treatment of psychiatric disorders. In this review, the MGBA is extended to include skeletal muscle and the potential role of an expanded "muscle-gut-brain axis" (MuGBA) in conditions such as anxiety and depression is discussed. There is evidence, from both preclinical and human studies, of bidirectional links between the gut microbiome and skeletal muscle function and structure. The therapeutic role of exercise in reducing depressive and anxiety symptoms is widely recognised, and the potential role of the gut microbiota-skeletal muscle link is discussed within this context. Potential pathways of communication involved in the MuGBA including the tryptophan-kynurenine pathway, intestinal permeability, immune modulation, and bacterial metabolites such as short-chain-fatty-acids are explored.
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Affiliation(s)
- Mary Scriven
- St Loman's Psychiatric Hospital, Delvin Road, Mullingar, County Westmeath, N91T3PR, Ireland
| | - Angela McSweeney
- Department of Psychiatry, Cork University Hospital, Wilton Road, Cork, T12DC4A, Ireland
| | | | - Sabrina Morkl
- Medical University of Graz, Department of Psychiatry and Psychotherapeutic Medicine, Graz, 8010, Austria
| | - Mary I Butler
- Department of Psychiatry, Cork University Hospital, Wilton Road, Cork, T12DC4A, Ireland
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19
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Lin S, Wang H, Qiu J, Li M, Gao E, Wu X, Xu Y, Chen G. Altered gut microbiota profile in patients with perimenopausal panic disorder. Front Psychiatry 2023; 14:1139992. [PMID: 37304433 PMCID: PMC10249373 DOI: 10.3389/fpsyt.2023.1139992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/02/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Females in the perimenopausal period are susceptible to mood disorders. Perimenopausal panic disorder (PPD) is characterized by repeated and unpredictable panic attacks during perimenopause, and it impacts the patient's physical and mental health and social function. Pharmacotherapy is limited in the clinic, and its pathological mechanism is unclear. Recent studies have demonstrated that gut microbiota is strongly linked to emotion; however, the relation between PPD and microbiota is limitedly known. Methods This study aimed to discover specific microbiota in PPD patients and the intrinsic connection between them. Gut microbiota was analyzed in PPD patients (n = 40) and healthy controls (n = 40) by 16S rRNA sequencing. Results The results showed reduced α-diversity (richness) in the gut microbiota of PPD patients. β-diversity indicated that PPD and healthy controls had different intestinal microbiota compositions. At the genus level, 30 species of microbiota abundance had significantly different between the PPD and healthy controls. In addition, HAMA, PDSS, and PASS scales were collected in two groups. It was found that Bacteroides and Alistipes were positively correlated with PASS, PDSS, and HAMA. Discussion Bacteroides and Alistipes dysbiosis dominate imbalanced microbiota in PPD patients. This microbial alteration may be a potential pathogenesis and physio-pathological feature of PPD. The distinct gut microbiota can be a potential diagnostic marker and a new therapeutic target for PPD.
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Affiliation(s)
- Shen Lin
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Hongjin Wang
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Jingjing Qiu
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- The Bao'an District TCM Hospital, The Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Minghong Li
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Ebin Gao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaofeng Wu
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- The Bao'an District TCM Hospital, The Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Yunxiang Xu
- Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Guizhen Chen
- The Bao'an District TCM Hospital, The Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
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Butler MI, Bastiaanssen TFS, Long-Smith C, Morkl S, Berding K, Ritz NL, Strain C, Patangia D, Patel S, Stanton C, O'Mahony SM, Cryan JF, Clarke G, Dinan TG. The gut microbiome in social anxiety disorder: evidence of altered composition and function. Transl Psychiatry 2023; 13:95. [PMID: 36941248 PMCID: PMC10027687 DOI: 10.1038/s41398-023-02325-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/05/2023] [Accepted: 01/18/2023] [Indexed: 03/23/2023] Open
Abstract
The microbiome-gut-brain axis plays a role in anxiety, the stress response and social development, and is of growing interest in neuropsychiatric conditions. The gut microbiota shows compositional alterations in a variety of psychiatric disorders including depression, generalised anxiety disorder (GAD), autism spectrum disorder (ASD) and schizophrenia but studies investigating the gut microbiome in social anxiety disorder (SAD) are very limited. Using whole-genome shotgun analysis of 49 faecal samples (31 cases and 18 sex- and age-matched controls), we analysed compositional and functional differences in the gut microbiome of patients with SAD in comparison to healthy controls. Overall microbiota composition, as measured by beta-diversity, was found to be different between the SAD and control groups and several taxonomic differences were seen at a genus- and species-level. The relative abundance of the genera Anaeromassillibacillus and Gordonibacter were elevated in SAD, while Parasuterella was enriched in healthy controls. At a species-level, Anaeromassilibacillus sp An250 was found to be more abundant in SAD patients while Parasutterella excrementihominis was higher in controls. No differences were seen in alpha diversity. In relation to functional differences, the gut metabolic module 'aspartate degradation I' was elevated in SAD patients. In conclusion, the gut microbiome of patients with SAD differs in composition and function to that of healthy controls. Larger, longitudinal studies are warranted to validate these preliminary results and explore the clinical implications of these microbiome changes.
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Affiliation(s)
- Mary I Butler
- Department of Psychiatry & Neurobehavioral Science, University College Cork, Cork, Ireland.
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
| | - Thomaz F S Bastiaanssen
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | - Sabrina Morkl
- Department of Psychiatry & Neurobehavioral Science, University College Cork, Cork, Ireland
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Graz, Austria
| | - Kirsten Berding
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | - Conall Strain
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Programme, Moorepark, Fermoy, Co, Cork, T12 YN60, Ireland
| | - Dhrati Patangia
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Programme, Moorepark, Fermoy, Co, Cork, T12 YN60, Ireland
| | - Shriram Patel
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Siobhain M O'Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Gerard Clarke
- Department of Psychiatry & Neurobehavioral Science, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- Department of Psychiatry & Neurobehavioral Science, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
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21
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Shan D, You L, Wan X, Yang H, Zhao M, Chen S, Jiang W, Xu Q, Yuan Y. Serum metabolomic profiling revealed potential diagnostic biomarkers in patients with panic disorder. J Affect Disord 2023; 323:461-471. [PMID: 36493940 DOI: 10.1016/j.jad.2022.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Currently, specific metabolites and diagnostic biomarkers of panic disorder (PD) patients have not been identified in clinical practice. The aim of this study was to explore metabolites and metabolic pathways in serum through a metabolomics method. METHODS Fifty-five PD patients who completed 2 weeks of inpatient treatment and 55 healthy control subjects (HCs) matched for age, sex and BMI were recruited. Ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) was used to detect metabolites in serum. Multivariate Statistical Analysis was used to identify differential metabolites. The relevant biometabolic pathways were further identified by the online tool MetaboAnalyst 5.0. RESULTS 43 different metabolites in PD patients compared to HCs (P < 0.05) were screened. Pathway analysis showed that these small molecules were mainly associated with amino acid metabolism. 14 metabolites were significantly changed after 2 weeks of drug treatment (P < 0.05), which were mainly associated with tryptophan metabolism. CONCLUSION In conclusion, our analysis of metabolomics of PD patients at baseline and two weeks after treatment screened for differential metabolites that could be potential diagnostic biomarkers involved in PD pathogenesis and influence some biometabolic pathways such as phenylalanine metabolism and tryptophan metabolism. In the future, we can summarize and observe the dynamic changes of differential metabolites that appear more frequently in similar studies to further explore the underlying mechanisms of PD evolution.
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Affiliation(s)
- Dandan Shan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Linlin You
- Nanjing Medical University, Nanjing, China; Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Xuerui Wan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Huan Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Meng Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | | | | | - Qian Xu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
| | - Yonggui Yuan
- Nanjing Medical University, Nanjing, China; Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China.
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22
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Dimonte S, Sikora V, Bove M, Morgese MG, Tucci P, Schiavone S, Trabace L. Social isolation from early life induces anxiety-like behaviors in adult rats: Relation to neuroendocrine and neurochemical dysfunctions. Biomed Pharmacother 2023; 158:114181. [PMID: 36592494 DOI: 10.1016/j.biopha.2022.114181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/21/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023] Open
Abstract
Subjects suffering from psychosis frequently experience anxiety. However, mechanisms underlying this comorbidity remain still unclear. We investigated whether neurochemical and neuroendocrine dysfunctions were involved in the development of anxiety-like behavior in a rodent model of psychotic-like symptoms, obtained by exposing male rats to social isolation rearing from postnatal day 21 to postnatal day 70. In the elevated zero maze test, isolated rats showed a significant reduction in the time spent in the open arms, as well as an increase in the time spent in the closed arms, compared to controls. An increased grooming time in the open field test was also observed in isolated animals. Isolation-induced anxiety-like behavior was accompanied by a decrease of plasmatic oxytocin, prolactin, ghrelin and melatonin levels, whereas plasmatic amount of Neuropeptide S was not altered. Social isolation also caused a reduction of noradrenaline, serotonin and GABA levels, together with an increase of serotonin turnover and glutamate levels in the amygdala of isolated animals. No significant differences were found in noradrenaline and serotonin levels, as well as in serotonin turnover in hippocampus, while glutamate amount was increased and GABA levels were reduced in isolated rats. Furthermore, there was a reduction in plasmatic serotonin content, and an increase in plasmatic kynurenine levels following social isolation, while no significant changes in serotonin turnover were observed. Taken together, our data provide novel insights in the neurobiological alterations underlying the comorbidity between psychosis and anxiety, and open new perspectives for multi-target therapies acting on both neurochemical and neuroendocrine pathways. DATA AVAILABILITY STATEMENT: The data presented in this study are available on request from the corresponding author.
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Affiliation(s)
- Stefania Dimonte
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
| | - Vladyslav Sikora
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy; Department of Pathology, Sumy State University, 2, Rymskogo-Korsakova st., Sumy 40007, Ukraine.
| | - Maria Bove
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
| | - Maria Grazia Morgese
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
| | - Paolo Tucci
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
| | - Stefania Schiavone
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
| | - Luigia Trabace
- Departement of Clinical and Experimental Medicine, University of Foggia, Via Napoli, 20, 71122, Foggia, Italy.
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23
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Kynurenine Pathway in Diabetes Mellitus-Novel Pharmacological Target? Cells 2023; 12:cells12030460. [PMID: 36766803 PMCID: PMC9913876 DOI: 10.3390/cells12030460] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
The tryptophan-kynurenine pathway (Trp-KYN) is the major route for tryptophan conversion in the brain and in the periphery. Kynurenines display a wide range of biological actions (which are often contrasting) such as cytotoxic/cytoprotective, oxidant/antioxidant or pro-/anti-inflammatory. The net effect depends on their local concentration, cellular environment, as well as a complex positive and negative feedback loops. The imbalance between beneficial and harmful kynurenines was implicated in the pathogenesis of various neurodegenerative disorders, psychiatric illnesses and metabolic disorders, including diabetes mellitus (DM). Despite available therapies, DM may lead to serious macro- and microvascular complications including cardio- and cerebrovascular disease, peripheral vascular disease, chronic renal disease, diabetic retinopathy, autonomic neuropathy or cognitive impairment. It is well established that low-grade inflammation, which often coincides with DM, can affect the function of KP and, conversely, that kynurenines may modulate the immune response. This review provides a detailed summary of findings concerning the status of the Trp-KYN pathway in DM based on available animal, human and microbiome studies. We highlight the importance of the molecular interplay between the deranged (functionally and qualitatively) conversion of Trp to kynurenines in the development of DM and insulin resistance. The Trp-KYN pathway emerges as a novel target in the search for preventive and therapeutic interventions in DM.
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24
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The Association of the Oral Microbiota with the Effects of Acid Stress Induced by an Increase of Brain Lactate in Schizophrenia Patients. Biomedicines 2023; 11:biomedicines11020240. [PMID: 36830777 PMCID: PMC9953675 DOI: 10.3390/biomedicines11020240] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/28/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
The altered cerebral energy metabolism central to schizophrenia can be linked to lactate accumulation. Lactic acid is produced by gastrointestinal bacteria, among others, and readily crosses the blood-brain barrier, leading to the brain acidity. This study aimed to examine the association of the oral microbiota with the effects of acid stress induced by an increase of brain lactate in schizophrenia patients. The study included patients with a diagnosis of acute polyphasic psychotic disorder meeting criteria for schizophrenia at 3-month follow-up. Results: Individuals with a significantly higher total score on the Positive and Negative Syndrome Scale had statistically significantly lower lactate concentrations compared to those with a lower total score and higher brain lactate. We observed a positive correlation between Actinomyces and lactate levels in the anterior cingulate cap and a negative correlation between bacteria associated with lactate metabolism and some clinical assessment scales. Conclusions: Shifts in the oral microbiota in favour of lactate-utilising bacterial genera may represent a compensatory mechanism in response to increased lactate production in the brain. Assessment of neuronal function mediated by ALA-LAC-dependent NMDA regulatory mechanisms may, thus, support new therapies for schizophrenia, for which acidosis has become a differentiating feature of individuals with schizophrenia endophenotypes.
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Caldiroli A, Capuzzi E, Affaticati LM, Surace T, Di Forti CL, Dakanalis A, Clerici M, Buoli M. Candidate Biological Markers for Social Anxiety Disorder: A Systematic Review. Int J Mol Sci 2023; 24:835. [PMID: 36614278 PMCID: PMC9821596 DOI: 10.3390/ijms24010835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 01/05/2023] Open
Abstract
Social anxiety disorder (SAD) is a common psychiatric condition associated with a high risk of psychiatric comorbidity and impaired social/occupational functioning when not promptly treated. The identification of biological markers may facilitate the diagnostic process, leading to an early and proper treatment. Our aim was to systematically review the available literature about potential biomarkers for SAD. A search in the main online repositories (PubMed, ISI Web of Knowledge, PsychInfo, etc.) was performed. Of the 662 records screened, 61 were included. Results concerning cortisol, neuropeptides and inflammatory/immunological/neurotrophic markers remain inconsistent. Preliminary evidence emerged about the role of chromosome 16 and the endomannosidase gene, as well as of epigenetic factors, in increasing vulnerability to SAD. Neuroimaging findings revealed an altered connectivity of different cerebral areas in SAD patients and amygdala activation under social threat. Some parameters such as salivary alpha amylase levels, changes in antioxidant defenses, increased gaze avoidance and QT dispersion seem to be associated with SAD and may represent promising biomarkers of this condition. However, the preliminary positive correlations have been poorly replicated. Further studies on larger samples and investigating the same biomarkers are needed to identify more specific biological markers for SAD.
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Affiliation(s)
- Alice Caldiroli
- Department of Mental Health and Addiction, Fondazione IRCCS San Gerardo dei Tintori, Via G.B. Pergolesi 33, 20900 Monza, Italy; (E.C.); (T.S.); (M.C.)
| | - Enrico Capuzzi
- Department of Mental Health and Addiction, Fondazione IRCCS San Gerardo dei Tintori, Via G.B. Pergolesi 33, 20900 Monza, Italy; (E.C.); (T.S.); (M.C.)
| | - Letizia M. Affaticati
- Department of Medicine and Surgery, University of Milano Bicocca, Via Cadore 38, 20900 Monza, Italy; (L.M.A.); (C.L.D.F.); (A.D.)
| | - Teresa Surace
- Department of Mental Health and Addiction, Fondazione IRCCS San Gerardo dei Tintori, Via G.B. Pergolesi 33, 20900 Monza, Italy; (E.C.); (T.S.); (M.C.)
| | - Carla L. Di Forti
- Department of Medicine and Surgery, University of Milano Bicocca, Via Cadore 38, 20900 Monza, Italy; (L.M.A.); (C.L.D.F.); (A.D.)
| | - Antonios Dakanalis
- Department of Medicine and Surgery, University of Milano Bicocca, Via Cadore 38, 20900 Monza, Italy; (L.M.A.); (C.L.D.F.); (A.D.)
| | - Massimo Clerici
- Department of Mental Health and Addiction, Fondazione IRCCS San Gerardo dei Tintori, Via G.B. Pergolesi 33, 20900 Monza, Italy; (E.C.); (T.S.); (M.C.)
- Department of Medicine and Surgery, University of Milano Bicocca, Via Cadore 38, 20900 Monza, Italy; (L.M.A.); (C.L.D.F.); (A.D.)
| | - Massimiliano Buoli
- Department of Pathophysiology and Transplantation, University of Milan, Via Festa del Perdono 7, 20122 Milan, Italy;
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, 20122 Milan, Italy
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Ogłodek EA. Changes in the Serum Concentration Levels of Serotonin, Tryptophan and Cortisol among Stress-Resilient and Stress-Susceptible Individuals after Experiencing Traumatic Stress. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16517. [PMID: 36554398 PMCID: PMC9779530 DOI: 10.3390/ijerph192416517] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Stress is a common response to many environmental adversities. However, once dysregulated, this reaction can lead to psychiatric illnesses, such as post-traumatic stress disorder (PTSD). Individuals can develop PTSD after exposure to traumatic events, severely affecting their quality of life. Nevertheless, not all individuals exposed to stress will develop psychiatric disorders, provided they show enhanced stress-resilience mechanisms that enable them to successfully adapt to stressful situations and thus avoid developing a persistent psychopathology. METHODS The study involved 93 participants. Of them, 62 comprised a study group and 31 comprised a control group. The aim of the study was to assess serotonin, cortisol and tryptophan concentration levels in subjects with PTSD (stress-susceptible; PTSD-SS) and in healthy individuals (stress-resilient; PTSD-SR), who had experienced a traumatic event but fully recovered after the trauma. The subjects were between 18 and 50 years of age (mean 35.56 ± 8.26 years). The serum concentration levels of serotonin, cortisol and tryptophan were measured with an ELISA kit. RESULTS It was found that the serotonin, tryptophan and cortisol concentration levels were consistent with the features of both PTSD-SR and PTSD-SS patients. It was reported that the mean cortisol concentration levels increased more significantly in the PTSD-SS group than in the PTSD-SR group, versus those in the control group. Similarly, the PTSD-SS group was found to show a larger decrease in the mean serotonin concentration levels than the PTSD-SR group, versus those in the control group. No significant changes were found in the tryptophan concentration levels between the study groups, versus those in the control group. CONCLUSIONS These findings can be useful when attempting to improve resilience in individuals using neuropharmacological methods. However, it is necessary to conduct more cross-sectional studies that would address different types of negative stress to find out whether they share common pathways.
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Affiliation(s)
- Ewa Alicja Ogłodek
- Department of Health Sciences, Jan Dlugosz University, 42-200 Częstochowa, Poland
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Yun Y, Zhang Q, Zhao W, Ma T, Fan H, Bai L, Ma B, Qi S, Wang Z, An H, Yang F. Relationship between the tryptophan-kynurenine pathway and painful physical symptoms in patients with major depressive disorder. J Psychosom Res 2022; 163:111069. [PMID: 36335711 DOI: 10.1016/j.jpsychores.2022.111069] [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: 07/15/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES To investigate the relationship between the tryptophan-kynurenine (TRP-KYN) pathway and painful physical symptoms (PPS) in major depressive disorder (MDD). METHODS Eighty-four patients with MDD (40 patients with PPS and 44 without PPS) and forty-six healthy controls (HC) were recruited. The serum levels of tryptophan (TRP), kynurenine(KYN), kynurenic acid (KA), quinolinic acid (QA), 3-hydroxy-kynurenine (3-HK), serotonin (5-HT) were measured using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Depression, anxiety and pain were assessed using Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA) and Short-form McGill pain questionnaire (SFMPQ) respectively. RESULTS Patients in the MDD group exhibited significantly lower KA and 5-HT levels than HC, whereas MDD patients with PPS showed higher KYN and QA levels, and a higher KYN/TRP ratio than those without. There was a positive correlation between the scores of SFMPQ and QA levels and a negative correlation between the scores of SFMPQ and TRP levels or KA/QA ratios in MDD patients with PPS group. Stepwise multiple regression analysis showed that the KYN/TRP ratios, the KA/QA ratios, and the HAMD scores were significant predictor factors for SFMPQ scores. CONCLUSIONS These results demonstrated that the TRP-KYN pathway may play a role in the pathophysiology of pain in patients with major depressive disorder, suggesting that further studies of this pathway as a potential biomarker or therapeutic target are required.
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Affiliation(s)
- Yajun Yun
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Qi Zhang
- Wuxi Mental Health Center, Wuxi, China
| | - Wenxuan Zhao
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Ting Ma
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hongzhen Fan
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Luyuan Bai
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Botao Ma
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Siyuan Qi
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Zhiren Wang
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China
| | - Huimei An
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China.
| | - Fude Yang
- Beijing HuiLongGuan Hospital, Peking University, Beijing, China.
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Li D, Yu S, Long Y, Shi A, Deng J, Ma Y, Wen J, Li X, Liu S, Zhang Y, Wan J, Li N, Ao R. Tryptophan metabolism: Mechanism-oriented therapy for neurological and psychiatric disorders. Front Immunol 2022; 13:985378. [PMID: 36159806 PMCID: PMC9496178 DOI: 10.3389/fimmu.2022.985378] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/11/2022] [Indexed: 12/04/2022] Open
Abstract
Neurological and psychiatric disorders are a category of chronic diseases that are widespread and pose serious mental and physical health problems for patients. The substrates, products, and enzymes of Tryptophan metabolism all contribute to the development of neurological and psychiatric disorders. This paper deals with three metabolic pathways of tryptophan that produce a series of metabolites called tryptophan Catabolics (TRYCATs). These metabolites are involved in pathological processes such as excitotoxicity, neuroinflammation, oxidative stress, and mitochondrial damage and are closely associated with neurological and psychiatric disorders such as Alzheimer's disease and depression. Here, we review the elements that affect how tryptophan metabolism is regulated, including inflammation and stress, exercise, vitamins, minerals, diet and gut microbes, glucocorticoids, and aging, as well as the downstream regulatory effects of tryptophan metabolism, including the regulation of glutamate (Glu), immunity, G-protein coupled receptor 35 (Gpr35), nicotinic acetylcholine receptor (nAChR), aryl hydrocarbon receptor (AhR), and dopamine (DA). In order to advance the general understanding of tryptophan metabolism in neurological and psychiatric disorders, this paper also summarizes the current situation and effective drugs of tryptophan metabolism in the treatment of neurological and psychiatric disorders and considers its future research prospects.
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Affiliation(s)
- Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shuang Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yu Long
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ai Shi
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jie Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yin Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Wen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoqiu Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Songyu Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yulu Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinyan Wan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Nan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rui Ao
- Oncology Center, Sichuan Provincial People's Hospital, Chengdu, China
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Lee S, Zhang A, Flores MA, de Ángel Solá D, Cao L, Bolanos-Rosero B, Wang L, Godoy-Vitorino F, Matos NR, Wang L. Prenatal exposure to Hurricane Maria is associated with an altered infant nasal microbiome. JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY: GLOBAL 2022; 1:128-137. [PMID: 36091489 PMCID: PMC9461092 DOI: 10.1016/j.jacig.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Background: Prenatal adverse exposures have been associated with increased risks of development of respiratory diseases in children. The infant nasal microbiome is an important mechanism and indicator. Objective: Our aim was to characterize and compare the nasal microbiome of infants who were in utero and exposed to Hurricane Maria in Puerto Rico during 2017 with that of infants who were conceived at least 5 months after the hurricane as controls. Methods: We recruited 63 vaginally born infants, 29 of whom were in the exposure group and 34 of whom were in the control group. Nasal swab samples were collected and analyzed by using 16S ribosomal RNA gene sequencing at the community and taxon levels, respectively. Results: Infants in the exposure group were more likely to harbor a Staphylococcus-Streptococcus–dominant microbial community in their nose. The richness and diversity of the microbiome was significantly higher in the exposure group than in the control group. In the exposure group, the bacterial genera Rhodocista, Azospirillum, Massilia, Herbaspirillum, Aquabacterium, and Pseudomonas were enriched, whereas Corynebacterium and Ralstonia were depleted. Food insecurity due to Hurricane Maria was associated with an increase in Pseudomonas in the infant nasal microbiome. Conclusion: Infants who were exposed to Hurricane Maria during gestation had an altered nasal microbiome, with a higher prevalence of environmental bacteria. More research is needed to evaluate the long-term impacts of extreme weather events occurring in the prenatal stage on a child’s nasal microbiome and respiratory health.
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Affiliation(s)
- Sandra Lee
- Department of Medicine, Division of Allergy and Immunology
| | - Ai Zhang
- Department of Medicine, Division of Allergy and Immunology
| | - Midnela Acevedo Flores
- San Juan City Hospital Research Unit, Department of Pediatrics and Obstetrics and Gynecology, San Juan Hospital
| | | | - Lijuan Cao
- Department of Medicine, Division of Allergy and Immunology
| | - Benjamin Bolanos-Rosero
- Department of Microbiology and Medical Zoology, School of Medicine, University of Puerto Rico, San Juan
| | - Leran Wang
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University in St Louis School of Medicine
| | - Filipa Godoy-Vitorino
- Department of Microbiology and Medical Zoology, School of Medicine, University of Puerto Rico, San Juan
| | - Nicolás Rosario Matos
- San Juan City Hospital Research Unit, Department of Pediatrics and Obstetrics and Gynecology, San Juan Hospital
| | - Leyao Wang
- Department of Medicine, Division of Allergy and Immunology
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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.
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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
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