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du Toit LDV, Mason S, van Reenen M, Rossouw TM, Louw R. Metabolic Alterations in Mothers Living with HIV and Their HIV-Exposed, Uninfected Infants. Viruses 2024; 16:313. [PMID: 38400088 PMCID: PMC10892778 DOI: 10.3390/v16020313] [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: 11/30/2023] [Revised: 02/05/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
HIV-exposed, uninfected (HEU) children present with suboptimal growth and a greater susceptibility to infection in early life when compared to HIV-unexposed, uninfected (HUU) children. The reasons for these findings are poorly understood. We used a metabolomics approach to investigate the metabolic differences between pregnant women living with HIV (PWLWH) and their HEU infants compared to the uninfected and unexposed controls. Untargeted metabolomic profiling was performed using 1H-NMR spectroscopy on maternal plasma at 28 weeks' gestation and infant plasma at birth, 6/10 weeks, and 6 months. PWLWH were older but, apart from a larger 28 week mid-upper-arm circumference, anthropometrically similar to the controls. At all the time points, HEU infants had a significantly reduced growth compared to HUU infants. PWLWH had lower plasma 3-hydroxybutyric acid, acetoacetic acid, and acetic acid levels. In infants at birth, threonine and myo-inositol levels were lower in the HEU group while formic acid levels were higher. At 6/10 weeks, betaine and tyrosine levels were lower in the HEU group. Finally, at six months, 3-hydroxyisobutyric acid levels were lower while glycine levels were higher in the HEU infants. The NMR analysis has provided preliminary information indicating differences between HEU and HUU infants' plasma metabolites involved in energy utilization, growth, and protection from infection.
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Affiliation(s)
- Louise D. V. du Toit
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa;
- UP Research Centre for Maternal, Fetal, Newborn and Child Health Care Strategies, University of Pretoria, Pretoria 0001, South Africa
- Maternal and Infant Health Care Strategies Research Unit, South African Medical Research Council, Pretoria 0001, South Africa
| | - Shayne Mason
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom 2520, South Africa; (S.M.); (M.v.R.); (R.L.)
| | - Mari van Reenen
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom 2520, South Africa; (S.M.); (M.v.R.); (R.L.)
| | - Theresa M. Rossouw
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa;
- UP Research Centre for Maternal, Fetal, Newborn and Child Health Care Strategies, University of Pretoria, Pretoria 0001, South Africa
- Maternal and Infant Health Care Strategies Research Unit, South African Medical Research Council, Pretoria 0001, South Africa
| | - Roan Louw
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom 2520, South Africa; (S.M.); (M.v.R.); (R.L.)
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Zhang SS, Yang X, Zhang WX, Zhou Y, Wei TT, Cui N, Du J, Liu W, Lu QB. Metabolic alterations in urine among the patients with severe fever with thrombocytopenia syndrome. Virol J 2024; 21:11. [PMID: 38191404 PMCID: PMC10775654 DOI: 10.1186/s12985-024-02285-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/02/2024] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND The pathogenesis of severe fever with thrombocytopenia syndrome (SFTS) remained unclear. We aimed to profile the metabolic alterations in urine of SFTS patients and provide new evidence for its pathogenesis. METHODS A case-control study was conducted in the 154th hospital in China. Totally 88 cases and 22 controls aged ≥ 18 years were enrolled. The cases were selected from laboratory-confirmed SFTS patients. The controls were selected among SFTSV-negative population. Those with diabetes, cancer, hepatitis and other sexually transmitted diseases were excluded in both groups. Fatal cases and survival cases were 1:1 matched. Inter-group differential metabolites and pathways were obtained, and the inter-group discrimination ability was evaluated. RESULTS Tryptophan metabolism and phenylalanine metabolism were the top one important metabolism pathway in differentiating the control and case groups, and the survival and fatal groups, respectively. The significant increase of differential metabolites in tryptophan metabolism, including 5-hydroxyindoleacetate (5-HIAA), L-kynurenine (KYN), 5-hydroxy-L-tryptophan (5-HTP), 3-hydroxyanthranilic acid (3-HAA), and the increase of phenylpyruvic acid and decrease of hippuric acid in phenylalanine metabolism indicated the potential metabolic alterations in SFTSV infection. The increase of 5-HIAA, KYN, 5-HTP, phenylpyruvic acid and hippuric acid were involved in the fatal progress of SFTS patients. CONCLUSIONS Tryptophan metabolism and phenylalanine metabolism might be involved in the pathogenesis of SFTSV infection. These findings provided new evidence for the pathogenesis and treatment of SFTS.
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Affiliation(s)
- Shan-Shan Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Xin Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Wan-Xue Zhang
- Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| | - Yiguo Zhou
- Department of Health Policy and Management, School of Public Health, Peking University, Beijing, China
| | - Ting-Ting Wei
- Department of Laboratorial of Science and Technology & Vaccine Research Center, School of Public Health, Peking University, No. 38 Xue-Yuan Road, Haidian District, Beijing, 100191, China
| | - Ning Cui
- Department of Infectious Diseases, The 154th Hospital, Xinyang, China
| | - Juan Du
- Department of Laboratorial of Science and Technology & Vaccine Research Center, School of Public Health, Peking University, No. 38 Xue-Yuan Road, Haidian District, Beijing, 100191, China
| | - Wei Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Qing-Bin Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
- Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China.
- Department of Health Policy and Management, School of Public Health, Peking University, Beijing, China.
- Department of Laboratorial of Science and Technology & Vaccine Research Center, School of Public Health, Peking University, No. 38 Xue-Yuan Road, Haidian District, Beijing, 100191, China.
- Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Beijing, China.
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Zhang Q, Chen S, Guo Y, He F, Fu J, Ren W. Phenylalanine diminishes M1 macrophage inflammation. SCIENCE CHINA. LIFE SCIENCES 2023; 66:2862-2876. [PMID: 37243947 DOI: 10.1007/s11427-022-2296-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/17/2023] [Indexed: 05/29/2023]
Abstract
Emerging evidence suggests that amino acids dictate the effector functions of immune cells; however, whether and how phenylalanine (Phe) orchestrates the polarization of macrophages is not understood. Here, we determined that Phe attenuated lipopolysaccharide (LPS) and P. multocida serotype A strain CQ2 (PmCQ2) infection-induced inflammation in vivo. Furthermore, we demonstrated that Phe inhibited the production of interleukin (IL)-1β and tumor necrosis factor (TNF)-α in proinflammatory (M1) macrophages. Phe reprogrammed the transcriptomic and metabolic profiles and enhanced oxidative phosphorylation in M1 macrophages, which reduced the activation of caspase-1. Notably, the valine-succinyl-CoA axis played a critical role in Phe-mediated inhibition of IL-1β production in M1 macrophages. Taken together, our findings suggest that manipulating the valine-succinyl-CoA axis provides a potential target for preventing and/or treating macrophage-related diseases.
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Affiliation(s)
- Qingzhuo Zhang
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Siyuan Chen
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yan Guo
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Fang He
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Jian Fu
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Wenkai Ren
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China.
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Rai MK, Yadav S, Jain A, Singh K, Kumar A, Raj R, Dubey D, Singh H, Guleria A, Chaturvedi S, Khan AR, Nath A, Misra DP, Agarwal V, Kumar D. Clinical metabolomics by NMR revealed serum metabolic signatures for differentiating sarcoidosis from tuberculosis. Metabolomics 2023; 19:92. [PMID: 37940751 DOI: 10.1007/s11306-023-02052-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 09/20/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Pulmonary sarcoidosis (SAR) and tuberculosis (TB) are two granulomatous lung-diseases and often pose a diagnostic challenge to a treating physicians. OBJECTIVE The present study aims to explore the diagnostic potential of NMR based serum metabolomics approach to differentiate SAR from TB. MATERIALS AND METHOD The blood samples were obtained from three study groups: SAR (N = 35), TB (N = 28) and healthy normal subjects (NC, N = 56) and their serum metabolic profiles were measured using 1D 1H CPMG (Carr-Purcell-Meiboom-Gill) NMR spectra recorded at 800 MHz NMR spectrometer. The quantitative metabolic profiles were compared employing a combination of univariate and multivariate statistical analysis methods and evaluated for their diagnostic potential using receiver operating characteristic (ROC) curve analysis. RESULTS Compared to SAR, the sera of TB patients were characterized by (a) elevated levels of lactate, acetate, 3-hydroxybutyrate (3HB), glutamate and succinate (b) decreased levels of glucose, citrate, pyruvate, glutamine, and several lipid and membrane metabolites (such as very-low/low density lipoproteins (VLDL/LDL), polyunsaturated fatty acids, etc.). CONCLUSION The metabolic disturbances not only found to be well in concordance with various previous reports, these further demonstrated very high sensitivity and specificity to distinguish SAR from TB patients suggesting serum metabolomics analysis can serve as surrogate method in the diagnosis and clinical management of SAR.
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Affiliation(s)
- Mohit Kumar Rai
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
| | - Sachin Yadav
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
- Department of Chemistry, Integral University, Lucknow, UP, 226026, India
| | - Avinash Jain
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India.
- Department of Clinical Immunology and Rheumatology, SMS Medical College, Jaipur, India.
| | - Kritika Singh
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
| | - Amit Kumar
- Centre of Biomedical Research (CBMR), Lucknow, UP, 226014, India
| | - Ritu Raj
- Centre of Biomedical Research (CBMR), Lucknow, UP, 226014, India
| | - Durgesh Dubey
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
- Centre of Biomedical Research (CBMR), Lucknow, UP, 226014, India
| | - Harshit Singh
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
- Immuno Biology Lab, Translational Health Science and Technology Institute, Faridabad, HR, 121001, India
| | - Anupam Guleria
- Centre of Biomedical Research (CBMR), Lucknow, UP, 226014, India
| | - Saurabh Chaturvedi
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
- Department of Medical Laboratory Technology, School of Allied Health Sciences, Delhi Pharmaceutical Sciences and Research University, Sector III, Pushp Vihar, M.B. Road, New Delhi, 110017, India
| | - Abdul Rahman Khan
- Department of Chemistry, Integral University, Lucknow, UP, 226026, India
| | - Alok Nath
- Department of Pulmonary Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
| | - Durga Prasanna Misra
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India
| | - Vikas Agarwal
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, UP, 226014, India.
| | - Dinesh Kumar
- Centre of Biomedical Research (CBMR), Lucknow, UP, 226014, India.
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Zhang J, Chen Y, Wang M, Zhong L, Li L, Yuan Z, Zou S. Amino acid metabolism dysregulation associated with inflammation and insulin resistance in HIV-infected individuals with metabolic disorders. Amino Acids 2023; 55:1545-1555. [PMID: 37726575 DOI: 10.1007/s00726-023-03325-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/29/2023] [Indexed: 09/21/2023]
Abstract
Amino acid metabolic profile, particularly its association with clinical characteristics, remains unclear in patients with human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome (AIDS) combined with metabolic disorders. In this study, we performed targeted metabolomic analyses on 64 patients with HIV/AIDS and 21 healthy controls. Twenty-four amino acids and selected intermediate metabolites in the serum were quantitatively detected using high-performance liquid chromatography-tandem mass spectrometry, and characteristic changes and metabolic pathways were analyzed in HIV-infected patients with different degrees of abnormal glucose and lipid metabolism. Spearman's partial correlation was used to analyze the association between amino acids, biochemical parameters, and inflammatory cytokines. The results showed that the main metabolic pathways of the eighteen differential metabolites involved were arginine biosynthesis and metabolism, methionine cycle, and tryptophan metabolism. Fourteen differential amino acid metabolites were positively correlated with nine inflammatory cytokines, including TNF-α, C-reactive protein, IL-1β, and galectin-3 (FDR < 0.1). Kynurenine, ornithine, and homocysteine were positively correlated with fasting blood glucose and insulin resistance index (FDR < 0.1). Our study revealed a multi-pathway imbalance in amino acid metabolism in patients with HIV/AIDS, which was significantly correlated with inflammation and insulin resistance.
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Affiliation(s)
- Jing Zhang
- Department of Pharmacy, Guangzhou Eighth People's Hospital, Guangzhou Medical University, 8#, Huaying Street, Guangzhou, 518067, Guangdong, China
| | - Yanfang Chen
- Department of Pharmacy, Guangzhou Eighth People's Hospital, Guangzhou Medical University, 8#, Huaying Street, Guangzhou, 518067, Guangdong, China
| | - Mingli Wang
- Department of Pharmacy, Guangzhou Eighth People's Hospital, Guangzhou Medical University, 8#, Huaying Street, Guangzhou, 518067, Guangdong, China
| | - Liuting Zhong
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, 63#, Duobao Street, Guangzhou, 510150, Guangdong, China
| | - Linghua Li
- Department of Infection, Guangzhou Eighth People's Hospital, Guangzhou Medical University, 8#, Huaying Street, Guangzhou, 518067, Guangdong, China.
| | - Zhongwen Yuan
- Department of Pharmacy, The Third Affiliated Hospital of Guangzhou Medical University, 63#, Duobao Street, Guangzhou, 510150, Guangdong, China.
| | - Shangrong Zou
- Department of Pharmacy, Guangzhou Eighth People's Hospital, Guangzhou Medical University, 8#, Huaying Street, Guangzhou, 518067, Guangdong, China.
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Herbert C, Luies L, Loots DT, Williams AA. The metabolic consequences of HIV/TB co-infection. BMC Infect Dis 2023; 23:536. [PMID: 37592227 PMCID: PMC10436461 DOI: 10.1186/s12879-023-08505-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
BACKGROUND The synergy between the human immunodeficiency virus (HIV) and Mycobacterium tuberculosis during co-infection of a host is well known. While this synergy is known to be driven by immunological deterioration, the metabolic mechanisms that contribute to the associated disease burden experienced during HIV/tuberculosis (TB) co-infection remain poorly understood. Furthermore, while anti-HIV treatments suppress viral replication, these therapeutics give rise to host metabolic disruption and adaptations beyond that induced by only infection or disease. METHODS In this study, the serum metabolic profiles of healthy controls, untreated HIV-negative TB-positive patients, untreated HIV/TB co-infected patients, and HIV/TB co-infected patients on antiretroviral therapy (ART), were measured using two-dimensional gas chromatography time-of-flight mass spectrometry. Since no global metabolic profile for HIV/TB co-infection and the effect of ART has been published to date, this pilot study aimed to elucidate the general areas of metabolism affected during such conditions. RESULTS HIV/TB co-infection induced significant changes to the host's lipid and protein metabolism, with additional microbial product translocation from the gut to the blood. The results suggest that HIV augments TB synergistically, at least in part, contributing to increased inflammation, oxidative stress, ART-induced mitochondrial damage, and its detrimental effects on gut health, which in turn, affects energy availability. ART reverses these trends to some extent in HIV/TB co-infected patients but not to that of healthy controls. CONCLUSION This study generated several new hypotheses that could direct future metabolic studies, which could be combined with other research techniques or methodologies to further elucidate the underlying mechanisms of these changes.
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Affiliation(s)
- Chandré Herbert
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Laneke Luies
- Human Metabolomics, North-West University, Potchefstroom, South Africa
| | - Du Toit Loots
- Human Metabolomics, North-West University, Potchefstroom, South Africa
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Gómez-Archila LG, Palomino-Schätzlein M, Zapata-Builes W, Rugeles MT, Galeano E. Plasma metabolomics by nuclear magnetic resonance reveals biomarkers and metabolic pathways associated with the control of HIV-1 infection/progression. Front Mol Biosci 2023; 10:1204273. [PMID: 37457832 PMCID: PMC10339029 DOI: 10.3389/fmolb.2023.1204273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023] Open
Abstract
How the human body reacts to the exposure of HIV-1 is an important research goal. Frequently, HIV exposure leads to infection, but some individuals show natural resistance to this infection; they are known as HIV-1-exposed but seronegative (HESN). Others, although infected but without antiretroviral therapy, control HIV-1 replication and progression to AIDS; they are named controllers, maintaining low viral levels and an adequate count of CD4+ T lymphocytes. Biological mechanisms explaining these phenomena are not precise. In this context, metabolomics emerges as a method to find metabolites in response to pathophysiological stimuli, which can help to establish mechanisms of natural resistance to HIV-1 infection and its progression. We conducted a cross-sectional study including 30 HESN, 14 HIV-1 progressors, 14 controllers and 30 healthy controls. Plasma samples (directly and deproteinized) were analyzed through Nuclear Magnetic Resonance (NMR) metabolomics to find biomarkers and altered metabolic pathways. The metabolic profile analysis of progressors, controllers and HESN demonstrated significant differences with healthy controls when a discriminant analysis (PLS-DA) was applied. In the discriminant models, 13 metabolites associated with HESN, 14 with progressors and 12 with controllers were identified, which presented statistically significant mean differences with healthy controls. In progressors, the metabolites were related to high energy expenditure (creatinine), mood disorders (tyrosine) and immune activation (lipoproteins), phenomena typical of the natural course of the infection. In controllers, they were related to an inflammation-modulating profile (glutamate and pyruvate) and a better adaptive immune system response (acetate) associated with resistance to progression. In the HESN group, with anti-inflammatory (lactate and phosphocholine) and virucidal (lactate) effects which constitute a protective profile in the sexual transmission of HIV. Concerning the significant metabolites of each group, we identified 24 genes involved in HIV-1 replication or virus proteins that were all altered in progressors but only partially in controllers and HESN. In summary, our results indicate that exposure to HIV-1 in HESN, as well as infection in progressors and controllers, affects the metabolism of individuals and that this affectation can be determined using NMR metabolomics.
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Affiliation(s)
- León Gabriel Gómez-Archila
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia (UdeA), Medellín, Colombia
- Grupo de Investigación en Ciencias Farmacéuticas ICIF-CES, Facultad de Ciencias y Biotecnología, Universidad CES, Medellín, Colombia
| | | | - Wildeman Zapata-Builes
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia (UdeA), Medellín, Colombia
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Maria T. Rugeles
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia (UdeA), Medellín, Colombia
| | - Elkin Galeano
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia (UdeA), Medellín, Colombia
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Goodkin K, Evering TH, Anderson AM, Ragin A, Monaco CL, Gavegnano C, Avery RJ, Rourke SB, Cysique LA, Brew BJ. The comorbidity of depression and neurocognitive disorder in persons with HIV infection: call for investigation and treatment. Front Cell Neurosci 2023; 17:1130938. [PMID: 37206666 PMCID: PMC10190964 DOI: 10.3389/fncel.2023.1130938] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/07/2023] [Indexed: 05/21/2023] Open
Abstract
Depression and neurocognitive disorder continue to be the major neuropsychiatric disorders affecting persons with HIV (PWH). The prevalence of major depressive disorder is two to fourfold higher among PWH than the general population (∼6.7%). Prevalence estimates of neurocognitive disorder among PWH range from 25 to over 47% - depending upon the definition used (which is currently evolving), the size of the test battery employed, and the demographic and HIV disease characteristics of the participants included, such as age range and sex distribution. Both major depressive disorder and neurocognitive disorder also result in substantial morbidity and premature mortality. However, though anticipated to be relatively common, the comorbidity of these two disorders in PWH has not been formally studied. This is partly due to the clinical overlap of the neurocognitive symptoms of these two disorders. Both also share neurobehavioral aspects - particularly apathy - as well as an increased risk for non-adherence to antiretroviral therapy. Shared pathophysiological mechanisms potentially explain these intersecting phenotypes, including neuroinflammatory, vascular, and microbiomic, as well as neuroendocrine/neurotransmitter dynamic mechanisms. Treatment of either disorder affects the other with respect to symptom reduction as well as medication toxicity. We present a unified model for the comorbidity based upon deficits in dopaminergic transmission that occur in both major depressive disorder and HIV-associated neurocognitive disorder. Specific treatments for the comorbidity that decrease neuroinflammation and/or restore associated deficits in dopaminergic transmission may be indicated and merit study.
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Affiliation(s)
- Karl Goodkin
- Department of Psychiatry, School of Medicine, The University of Texas Rio Grande Valley, Harlingen, TX, United States
- Institute of Neuroscience, School of Medicine, The University of Texas Rio Grande Valley, Harlingen, TX, United States
| | - Teresa H. Evering
- Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Albert M. Anderson
- Division of Infectious Diseases, Department of Medicine, School of Medicine, Emory University, Atlanta, GA, United States
| | - Ann Ragin
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Cynthia L. Monaco
- Division of Infectious Diseases, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
- Department of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
- Del Monte Institute of Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Christina Gavegnano
- Department of Pathology, Emory School of Medicine, Emory University, Atlanta, GA, United States
- Department of Pharmacology, Emory School of Medicine, Emory University, Atlanta, GA, United States
- Department of Chemical Biology, Emory School of Medicine, Emory University, Atlanta, GA, United States
- Center for the Study of Human Health, Emory College of Arts and Sciences, Emory University, Atlanta, GA, United States
- Atlanta Veteran’s Affairs Medical Center, Atlanta, GA, United States
- Center for Bioethics, Harvard Medical School, Harvard University, Boston, MA, United States
| | - Ryan J. Avery
- Division of Nuclear Medicine, Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Sean B. Rourke
- MAP Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Lucette A. Cysique
- School of Psychology, Faculty of Science, University of New South Wales, Sydney, NSW, Australia
| | - Bruce J. Brew
- Department of Neurology, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
- Department of Neurology, Faculty of Medicine, University of Notre Dame, Sydney, NSW, Australia
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Phenylalanine metabolism and tetrahydrobiopterin bio-availability in COVID-19 and HIV. Heliyon 2023; 9:e15010. [PMID: 37009248 PMCID: PMC10043972 DOI: 10.1016/j.heliyon.2023.e15010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Various metabolomics studies have reported increased phenylalanine serum concentrations in SARS-CoV-2 positive cases and have correlated increased phenylalanine with COVID-19 severity. In this study, we report similar results based upon metabolomics analysis of serum collected from a South African cohort of adults with confirmed COVID-19. The novelty of this study is the inclusion of HIV positive cases in the African context. We found that pre-existing HIV co-infection exacerbates the disruption of phenylalanine metabolism in COVID-19. What is lacking in literature is biological context and deeper understanding of perturbed phenylalanine metabolism in COVID-19. We delve deep into the metabolism of phenylalanine in COVID-19 and posit new insights for COVID-19 cases co-infected with HIV; namely, HIV-COVID-19 co-infected individuals do not have sufficient bioavailability of tetrahydrobiopterin (BH4). Hence, we identify BH4 as a potential supplement to alleviate/lessen COVID-19 symptoms.
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Gupta N, Yadav DK, Gautam S, Kumar A, Kumar D, Prasad N. Nuclear Magnetic Resonance-Based Metabolomics Approach Revealed the Intervention Effect of Using Complementary and Alternative Medicine (CAM) by CKD Patients. ACS OMEGA 2023; 8:7722-7737. [PMID: 36872986 PMCID: PMC9979328 DOI: 10.1021/acsomega.2c06469] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Chronic kidney disease (CKD) is the end point of a number of systemic chronic diseases. The prevalence of CKD is increasing worldwide and recent epidemiological studies are showing the high prevalence of renal failure in CKD patients using complementary and alternative medicines (CAMs). Clinicians believe that biochemical profiles of CKD patients using CAM (referred here to as CAM-CKD) may be different compared to those on standard clinical treatment and should be managed differently. The present study aims to explore the potential of the NMR-based metabolomics approach to reveal the serum metabolic disparity between CKD and CAM-CKD patients with respect to normal control (NC) subjects and if the differential metabolic patterns can provide rationale for the efficacy and safety of standard and/or alternative therapies. Serum samples were obtained from 30 CKD patients, 43 CAM-CKD patients, and 47 NC subjects. The quantitative serum metabolic profiles were measured using 1D 1H CPMG NMR experiments performed at 800 MHz NMR spectrometer. The serum metabolic profiles were compared using various multivariate statistical analysis tools available on MetaboAnalyst (freely available web-based software) such as partial least-squares discriminant analysis (PLS-DA) and random forest (a machine learning) classification method. The discriminatory metabolites were identified based on variable importance in projection (VIP) statistics and further evaluated for statistical significance (i.e., p < 0.05) using either Student t-test or ANOVA statistics. PLS-DA models were capable of clustering CKD and CAM-CKD with considerably high values of Q 2 and R 2. Compared to CAM-CKD patients, the sera of CKD patients were characterized by (a) elevated levels of urea, creatinine, citrate, glucose, glycerol, and phenylalanine and phenylalanine-to-tyrosine ratio (PTR) and (b) decreased levels of various amino acids (such leucine, isoleucine, valine, and alanine), high-density lipoproteins, lactate, and acetate. These changes suggested that CKD patients manifest severe oxidative stress, hyperglycemia (with dampened glycolysis), increased protein energy wasting, and reduced lipid/membrane metabolism. Statistically significant and strong positive correlation of PTR with serum creatinine levels suggested the role of oxidative stress in the progression of kidney disease. Significant differences in metabolic patterns between CKD and CAM-CKD patients were observed. With respect to NC subjects, the serum metabolic changes were more aberrant in CKD patients compared to CAM-CKD patients. The aberrant metabolic changes in CKD patients with manifestations of higher oxidative stress compared to CAM-CKD patients could explain clinical discrepancies between CKD and CAM-CKD patients and further advocate the use of different treatment strategies for CKD and CAM-CKD patients.
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Affiliation(s)
- Nikhil Gupta
- Centre
of Biomedical Research (CBMR), Lucknow, Uttar Pradesh 226014, India
- Department
of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | | | - Sonam Gautam
- Department
of Nephrology, SGPGIMS, Lucknow, Uttar Pradesh 226014, India
| | - Ashish Kumar
- Department
of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Dinesh Kumar
- Centre
of Biomedical Research (CBMR), Lucknow, Uttar Pradesh 226014, India
| | - Narayan Prasad
- Department
of Nephrology, SGPGIMS, Lucknow, Uttar Pradesh 226014, India
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11
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Yuan Z, Gan H, Jin H, Feng X, Wang M, Zhou H, Zhang J. Evaluation of characteristic metabolites of aromatic amino acids in patients with HIV infection at different stages of disease. J Clin Lab Anal 2022; 37:e24795. [PMID: 36464783 PMCID: PMC9833958 DOI: 10.1002/jcla.24795] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Acquired immune deficiency syndrome (AIDS), human immunodeficiency virus (HIV) infection, and antiretroviral therapy are usually associated with metabolic disorders. Screening for biomarkers to evaluate the progression of metabolic disorders is important for the diagnosis and treatment of HIV infection. This study aimed to establish and validate a method to quantify serum aromatic amino acid (AAA) metabolites as biomarkers of metabolic disorders in patients with HIV. METHODS The AAAs and metabolites were analyzed using high-performance liquid chromatography-tandem mass spectrometry. Pearson's correlation, heatmap, and receiver operating characteristic curve analyses were used for statistical analysis. RESULTS Under optimal detection conditions, the lower limits of phenylalanine (Phe), tryptophan (Trp), kynurenine (Kyn), tyrosine, phenylacetylglutamine (PAGln), and 5-hydroxytryptamine quantification reached 0.02, 0.02, 0.01, 0.02, 0.01, and 0.002 μg/ml, respectively, and the precision of intra- and inter-day was stay below 10.30%. Serum samples were stable for at least 6 months when stored at -80°C. The inter-group differences and associations between the biomarkers exhibited a particular volatility trend in PAGln, Trp, and Kyn metabolism in HIV-infected patients with metabolic syndrome. CONCLUSIONS The developed method can be used for rapid and sensitive quantification of the AAA metabolism profile in vivo to further appraise the process of HIV infection, evaluate intervening measures, conduct mechanistic investigations, and further study the utility of PAGln, a characteristic metabolite of AAA, as a biomarker of HIV infection coupled with metabolic syndrome.
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Affiliation(s)
- Zhong‐Wen Yuan
- Department of PharmacyThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina,Guangdong Provincial Key Laboratory of Major Obstetric DiseasesGuangzhou Medical UniversityGuangzhouChina,School of Pharmaceutical SciencesGuangzhou Medical UniversityGuangzhouChina
| | - Hai‐Ling Gan
- School of Pharmaceutical SciencesGuangzhou University of Chinese MedicineGuangzhouChina
| | - Hong‐Liu Jin
- Department of PharmacyThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina,Guangdong Provincial Key Laboratory of Major Obstetric DiseasesGuangzhou Medical UniversityGuangzhouChina,School of Pharmaceutical SciencesGuangzhou Medical UniversityGuangzhouChina
| | - Xiao‐Ying Feng
- Department of PharmacyThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina,Guangdong Provincial Key Laboratory of Major Obstetric DiseasesGuangzhou Medical UniversityGuangzhouChina,School of Pharmaceutical SciencesGuangzhou Medical UniversityGuangzhouChina
| | - Ming Wang
- Department of Pharmacy, Guangzhou Eighth People's HospitalGuangzhou Medical UniversityGuangzhouChina
| | - Hua‐Ping Zhou
- Department of Pharmacy, Guangzhou Eighth People's HospitalGuangzhou Medical UniversityGuangzhouChina
| | - Jing Zhang
- Department of Pharmacy, Guangzhou Eighth People's HospitalGuangzhou Medical UniversityGuangzhouChina
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12
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Martínez-Gómez LE, Ibarra-González I, Fernández-Lainez C, Tusie T, Moreno-Macías H, Martinez-Armenta C, Jimenez-Gutierrez GE, Vázquez-Cárdenas P, Vidal-Vázquez P, Ramírez-Hinojosa JP, Rodríguez-Zulueta AP, Vargas-Alarcón G, Rojas-Velasco G, Sánchez-Muñoz F, Posadas-Sanchez R, Martínez-Ruiz FDJ, Zayago-Angeles DM, Moreno ML, Barajas-Galicia E, Lopez-Cisneros G, Gonzalez-Fernández NC, Ortega-Peña S, Herrera-López B, Olea-Torres J, Juárez-Arias M, Rosas-Vásquez M, Cabrera-Nieto SA, Magaña JJ, Camacho-Rea MDC, Suarez-Ahedo C, Coronado-Zarco I, Valdespino-Vázquez MY, Martínez-Nava GA, Pineda C, Vela-Amieva M, López-Reyes A. Metabolic Reprogramming in SARS-CoV-2 Infection Impacts the Outcome of COVID-19 Patients. Front Immunol 2022; 13:936106. [PMID: 36341434 PMCID: PMC9634751 DOI: 10.3389/fimmu.2022.936106] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/10/2022] [Indexed: 11/25/2023] Open
Abstract
Severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) infection triggers inflammatory clinical stages that affect the outcome of patients with coronavirus disease 2019 (COVID-19). Disease severity may be associated with a metabolic imbalance related to amino acids, lipids, and energy-generating pathways. The aim of this study was to characterize the profile of amino acids and acylcarnitines in COVID-19 patients. A multicenter, cross-sectional study was carried out. A total of 453 individuals were classified by disease severity. Levels of 11 amino acids, 31 acylcarnitines, and succinylacetone in serum samples were analyzed by electrospray ionization-triple quadrupole tandem mass spectrometry. Different clusters were observed in partial least squares discriminant analysis, with phenylalanine, alanine, citrulline, proline, and succinylacetone providing the major contribution to the variability in each cluster (variable importance in the projection >1.5). In logistic models adjusted by age, sex, type 2 diabetes mellitus, hypertension, and nutritional status, phenylalanine was associated with critical outcomes (odds ratio=5.3 (95% CI 3.16-9.2) in the severe vs. critical model, with an area under the curve of 0.84 (95% CI 0.77-0.90). In conclusion the metabolic imbalance in COVID-19 patients might affect disease progression. This work shows an association of phenylalanine with critical outcomes in COVID-19 patients, highlighting phenylalanine as a potential metabolic biomarker of disease severity.
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Affiliation(s)
- Laura E. Martínez-Gómez
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Isabel Ibarra-González
- Unidad de Genética de la Nutrición, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Cynthia Fernández-Lainez
- Laboratorio de Errores Innatos del Metabolismo y Tamiz, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México, Mexico
| | - Teresa Tusie
- Unidad de Biología Molecular y Medicina Genómica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Instituto de Investigaciones Biomédicas UNAM, Ciudad de México, Mexico
| | - Hortensia Moreno-Macías
- Unidad de Biología Molecular y Medicina Genómica, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Instituto de Investigaciones Biomédicas UNAM, Ciudad de México, Mexico
- Departamento de Economía. División de Ciencias Sociales y Humanidades, Universidad Autónoma Metropolitana, Iztapalapa, Ciudad de México, Mexico
| | - Carlos Martinez-Armenta
- Posgrado en Biología Experimental, Dirección de Ciencias Biológicas y de la Salud (DCBS), Universidad Autónoma Metropolitana Iztapalapa, Ciudad de México, Mexico
| | - Guadalupe Elizabeth Jimenez-Gutierrez
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Paola Vázquez-Cárdenas
- Centro de Innovación Médica Aplicada, Subdirección de Epidemiología e Infectología, Hospital General Dr. Manuel Gea González, Secretaría de Salud, Ciudad de México, Mexico
| | - Patricia Vidal-Vázquez
- Centro de Innovación Médica Aplicada, Subdirección de Epidemiología e Infectología, Hospital General Dr. Manuel Gea González, Secretaría de Salud, Ciudad de México, Mexico
| | - Juan P. Ramírez-Hinojosa
- Centro de Innovación Médica Aplicada, Subdirección de Epidemiología e Infectología, Hospital General Dr. Manuel Gea González, Secretaría de Salud, Ciudad de México, Mexico
| | - Ana P. Rodríguez-Zulueta
- Centro de Innovación Médica Aplicada, Subdirección de Epidemiología e Infectología, Hospital General Dr. Manuel Gea González, Secretaría de Salud, Ciudad de México, Mexico
| | - Gilberto Vargas-Alarcón
- Departamentos de Biología Molecular, Inmunología, Endocrinologia y Unidad de Cuidados Intensivos, Instituto Nacional de Cardiología Ignacio Chavez, Secretaría de Salud, Ciudad de México, Mexico
| | - Gustavo Rojas-Velasco
- Departamentos de Biología Molecular, Inmunología, Endocrinologia y Unidad de Cuidados Intensivos, Instituto Nacional de Cardiología Ignacio Chavez, Secretaría de Salud, Ciudad de México, Mexico
| | - Fausto Sánchez-Muñoz
- Departamentos de Biología Molecular, Inmunología, Endocrinologia y Unidad de Cuidados Intensivos, Instituto Nacional de Cardiología Ignacio Chavez, Secretaría de Salud, Ciudad de México, Mexico
| | - Rosalinda Posadas-Sanchez
- Departamentos de Biología Molecular, Inmunología, Endocrinologia y Unidad de Cuidados Intensivos, Instituto Nacional de Cardiología Ignacio Chavez, Secretaría de Salud, Ciudad de México, Mexico
| | - Felipe de J. Martínez-Ruiz
- Nuevo Hospital General Delegación Regional Sur de la Ciudad de México, Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado (ISSSTE), Ciudad de México, Mexico
| | - Dulce M. Zayago-Angeles
- Nuevo Hospital General Delegación Regional Sur de la Ciudad de México, Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado (ISSSTE), Ciudad de México, Mexico
| | - Mariana L. Moreno
- Nuevo Hospital General Delegación Regional Sur de la Ciudad de México, Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado (ISSSTE), Ciudad de México, Mexico
| | - Edith Barajas-Galicia
- Hospital Central Norte Petróleos Mexicanos (PEMEX), Estado de México, Mexico City, Mexico
| | - Gerardo Lopez-Cisneros
- Hospital Central Norte Petróleos Mexicanos (PEMEX), Estado de México, Mexico City, Mexico
| | | | - Silvestre Ortega-Peña
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Brígida Herrera-López
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Jessel Olea-Torres
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Manuel Juárez-Arias
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico (IT) Veracruz, Veracruz, Mexico
| | - Maritza Rosas-Vásquez
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico (IT) Veracruz, Veracruz, Mexico
| | - Sara Aileen Cabrera-Nieto
- Posgrado en Ciencias Médicas, Facultad de Ciencias de la Salud, Universidad Anáhuac, Ciudad de México, Mexico
| | - Jonathan J. Magaña
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - María del Carmen Camacho-Rea
- Departamento de Nutrición Animal, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Secretaría de Salud, Ciudad de México, Mexico
| | - Carlos Suarez-Ahedo
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Irma Coronado-Zarco
- Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, Mexico
| | | | - Gabriela Angélica Martínez-Nava
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Carlos Pineda
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
| | - Marcela Vela-Amieva
- Laboratorio de Errores Innatos del Metabolismo y Tamiz, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México, Mexico
| | - Alberto López-Reyes
- Laboratorio de Gerociencias, Laboratorio Facilitador, Laboratorio de Medicina Genómica, Dirección General, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Secretaría de Salud, Ciudad de México, Mexico
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13
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Chen Q, Liang X, Wu T, Jiang J, Jiang Y, Zhang S, Ruan Y, Zhang H, Zhang C, Chen P, Lv Y, Xin J, Shi D, Chen X, Li J, Xu Y. Integrative analysis of metabolomics and proteomics reveals amino acid metabolism disorder in sepsis. J Transl Med 2022; 20:123. [PMID: 35287674 PMCID: PMC8919526 DOI: 10.1186/s12967-022-03320-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/25/2022] [Indexed: 12/20/2022] Open
Abstract
Background Sepsis is defined as a systemic inflammatory response to microbial infections with multiple organ dysfunction. This study analysed untargeted metabolomics combined with proteomics of serum from patients with sepsis to reveal the underlying pathological mechanisms involved in sepsis. Methods A total of 63 patients with sepsis and 43 normal controls were enrolled from a prospective multicentre cohort. The biological functions of the metabolome were assessed by coexpression network analysis. A molecular network based on metabolomics and proteomics data was constructed to investigate the key molecules. Results Untargeted metabolomics analysis revealed widespread dysregulation of amino acid metabolism, which regulates inflammation and immunity, in patients with sepsis. Seventy-three differentially expressed metabolites (|log2 fold change| > 1.5, adjusted P value < 0.05 and variable importance in the projection (VIP) > 1.5) that could predict sepsis were identified. External validation of the hub metabolites was consistent with the derivation results (area under the receiver operating characteristic curve (AUROC): 0.81–0.96/0.62–1.00). The pentose phosphate pathway was found to be related to sepsis-associated encephalopathy. Phenylalanine metabolism was associated with sepsis-associated acute kidney injury. The key molecular alterations of the multiomics network in sepsis compared to normal controls implicate acute inflammatory response, platelet degranulation, myeloid cell activation involved in immune response and phenylalanine, tyrosine and tryptophan biosynthesis, and arginine biosynthesis. Conclusions Integrated analysis of untargeted metabolomics and proteomics revealed characteristic metabolite and protein alterations in sepsis, which were mainly involved in inflammation-related pathways and amino acid metabolism. This study depicted the pathological characteristics and pathways involved in sepsis and potential therapeutic targets. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03320-y.
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14
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Araujo RA, Amaral S, Tolentino A, Zeballos D, Montaño I, Souza LS, Lins-Kusterer L, Brites C. Low Quality of Life, Falls, and Pre-Frailty are Associated with Depressive Symptoms in Virologically Suppressed PLWHIV in Salvador, Brazil. AIDS Behav 2022; 26:397-406. [PMID: 34312738 DOI: 10.1007/s10461-021-03393-8] [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] [Accepted: 07/17/2021] [Indexed: 11/25/2022]
Abstract
Depression is the leading cause of years lived with disability worldwide and PLWHIV present a higher risk of developing depressive symptoms. We aimed to evaluate depressive symptoms and their predictors in virologically suppressed PLWHIV. We conducted a cross-sectional study with 200 PLWHIV. Depressive symptoms were defined as scoring ≥ 14 points in the Beck Depression Inventory II. Most of the participants (58.5%) were men, with a median age of 54 years (IQR: 46.25-59.00). Depressive symptoms' prevalence was 19.5% and they were associated with being divorced/widowed (aOR: 2.93, CI 95%: 1.17-7.37), recurrent falls (aOR: 4.24, CI 95%: 1.07-16.85), pre-frailty (aOR: 3.55, CI 95%: 1.47-8.57), and lower scores in all HRQoL dimensions. Although virologically suppressed PLWHIV presented lower prevalence of depressive symptoms than reported in previous studies in Brazil and South America, they were associated with falls and frailty, highlighting the need for screening.
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Affiliation(s)
- Rafael Antonius Araujo
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil
| | - Sávio Amaral
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil.
- Programa de Pós-Graduação em Medicina e Saúde (PPgMS), Universidade Federal da Bahia, Salvador, Brazil.
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil.
| | - Arthur Tolentino
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil
| | - Diana Zeballos
- Programa de Pós-graduação em Saúde Coletiva (PPgSC), Universidade Federal da Bahia, Salvador, Brazil
| | - Iris Montaño
- Programa de Pós-Graduação em Medicina e Saúde (PPgMS), Universidade Federal da Bahia, Salvador, Brazil
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil
| | - Lucca S Souza
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
| | - Liliane Lins-Kusterer
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Medicina e Saúde (PPgMS), Universidade Federal da Bahia, Salvador, Brazil
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil
| | - Carlos Brites
- Faculdade de Medicina, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Medicina e Saúde (PPgMS), Universidade Federal da Bahia, Salvador, Brazil
- Laboratório de Pesquisa em Infectologia (LAPI), Hospital Universitário Prof. Edgard Santos (HUPES), Universidade Federal da Bahia, Dr. Augusto Viana Street, Salvador, BA, 40.110-060, Brazil
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15
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Amino Acid Metabolism is Significantly Altered at the Time of Admission in Hospital for Severe COVID-19 Patients: Findings from Longitudinal Targeted Metabolomics Analysis. Microbiol Spectr 2021; 9:e0033821. [PMID: 34878333 PMCID: PMC8653833 DOI: 10.1128/spectrum.00338-21] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The heterogeneity in severity and outcome of COVID-19 cases points out the urgent need for early molecular characterization of patients followed by risk-stratified care. The main objective of this study was to evaluate the fluctuations of serum metabolomic profiles of COVID-19 patients with severe illness during the different disease stages in a longitudinal manner. We demonstrate a distinct metabolomic signature in serum samples of 32 hospitalized patients at the acute phase compared to the recovery period, suggesting the tryptophan (tryptophan, kynurenine, and 3-hydroxy-DL-kynurenine) and arginine (citrulline and ornithine) metabolism as contributing pathways in the immune response to SARS-CoV-2 with a potential link to the clinical severity of the disease. In addition, we suggest that glutamine deprivation may further result in inhibited M2 macrophage polarization as a complementary process, and highlight the contribution of phenylalanine and tyrosine in the molecular mechanisms underlying the severe course of the infection. In conclusion, our results provide several functional metabolic markers for disease progression and severe outcome with potential clinical application. IMPORTANCE Although the host defense mechanisms against SARS-CoV-2 infection are still poorly described, they are of central importance in shaping the course of the disease and the possible outcome. Metabolomic profiling may complement the lacking knowledge of the molecular mechanisms underlying clinical manifestations and pathogenesis of COVID-19. Moreover, early identification of metabolomics-based biomarker signatures is proved to serve as an effective approach for the prediction of disease outcome. Here we provide the list of metabolites describing the severe, acute phase of the infection and bring the evidence of crucial metabolic pathways linked to aggressive immune responses. Finally, we suggest metabolomic phenotyping as a promising method for developing personalized care strategies in COVID-19 patients.
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A Targeted Serum Metabolomics GC-MS Approach Identifies Predictive Blood Biomarkers for Retained Placenta in Holstein Dairy Cows. Metabolites 2021; 11:metabo11090633. [PMID: 34564449 PMCID: PMC8466882 DOI: 10.3390/metabo11090633] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/09/2023] Open
Abstract
The retained placenta is a common pathology of dairy cows. It is associated with a significant drop in the dry matter intake, milk yield, and increased susceptibility of dairy cows to metritis, mastitis, and displaced abomasum. The objective of this study was to identify metabolic alterations that precede and are associated with the disease occurrence. Blood samples were collected from 100 dairy cows at −8 and −4 weeks prior to parturition and on the day of retained placenta, and only 16 healthy cows and 6 cows affected by retained placenta were selected to measure serum polar metabolites by a targeted gas chromatography–mass spectroscopy (GC-MS) metabolomics approach. A total of 27 metabolites were identified and quantified in the serum. There were 10, 18, and 17 metabolites identified as being significantly altered during the three time periods studied. However, only nine metabolites were identified as being shared among the three time periods including five amino acids (Asp, Glu, Ser, Thr, and Tyr), one sugar (myo-inositol), phosphoric acid, and urea. The identified metabolites can be used as predictive biomarkers for the risk of retained placenta in dairy cows and might help explain the metabolic processes that occur prior to the incidence of the disease and throw light on the pathomechanisms of the disease.
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Gabazana Z, Sitole L. Raman-based metabonomics unravels metabolic changes related to a first-line tenofovir-based treatment in a small cohort of South African HIV-infected patients. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119256. [PMID: 33310612 DOI: 10.1016/j.saa.2020.119256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/28/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
In addition to immunological disorders, human immunodeficiency virus (HIV) also causes metabolic abnormalities. Though successful in viral suppression and immune restoration, continued use of antiretroviral therapy (ART) has also been linked to the development of several metabolic ailments. Currently, the only clinical markers used to manage and monitor the development of HIV-induced metabolic disorders, disease progression as well as observing individual's response to antiviral treatment are CD4 count, viral loads and several other single variable colometric assays. Despite the common use of these clinical markers, these markers remain unreliable and limited in the ability to monitor the development of metabolic disorders as well as monitor treatment response. Given these limitations, it is imperative to discover and develop reliable biological markers for overall HIV disease management. Here, Raman spectroscopy was used to profile metabolic changes in the plasma of 22 HIV+ receiving a first-line tenofovir-based combination antiretroviral therapy compared to their 8 HIV+ ART- and 10 HIV- counterparts. Multivariate statistical analysis was performed in order to classify the samples into their respective groups and to identify significantly altered metabolites between the control and experimental groups. Orthogonal Projections to Latent Structures Discriminant Analysis (OPLS-DA) discriminant analysis identified significant differences (p < 0.05) in 9 different metabolites. Alterations were identified in spectral regions associated with glucose (1124 cm-1), lipids/phospholipids (1116 cm-1, 1098 cm-1, 1077 cm-1), proteins (1120 cm-1), nucleic acids (1081 cm-1) and phenylalanine (1103 cm-1). Pathway analysis also revealed 3 significantly altered pathways. This study presented the reproducible nature of Raman spectroscopy in distinguishing between HIV-infected (treated and untreated) and uninfected blood plasma and allowed for the detection and identification of treatment induced metabolite changes. The results obtained in the study may, therefore, give insights into understanding the metabolic effect of HIV therapy.
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Affiliation(s)
- Zikhona Gabazana
- Department of Biochemistry, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Lungile Sitole
- Department of Biochemistry, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa.
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18
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Chahine A, Koru-Sengul T, Feaster DJ, Dilworth SE, Antoni MH, Klatt N, Roach ME, Pallikkuth S, Sharkey M, Salinas J, Stevenson M, Pahwa S, Fuchs D, Carrico AW. Blue Monday: Co-occurring Stimulant Use and HIV Persistence Predict Dysregulated Catecholamine Synthesis. J Acquir Immune Defic Syndr 2021; 86:353-360. [PMID: 33165125 PMCID: PMC11215553 DOI: 10.1097/qai.0000000000002560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/06/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND This longitudinal study examined whether co-occurring stimulant use and HIV disease processes predicted greater risk for depression via dysregulated metabolism of amino acid precursors for neurotransmitters. METHODS In total, 110 sexual minority men (ie, gay, bisexual, and other men who have sex with men) living with HIV who had biologically confirmed recent methamphetamine use were enrolled in a randomized controlled trial. The kynurenine/tryptophan (K/T) and phenylalanine/tyrosine (P/T) ratios were measured over 15 months to index dysregulated metabolism of amino acid precursors for serotonin and catecholamines. Markers of gut-immune dysregulation such as lipopolysaccharide binding protein and soluble CD14 (sCD14), HIV persistence in immune cells (ie, proviral HIV DNA), and stimulant use were examined as predictors. These bio-behavioral measures, including the K/T and P/T ratios, were also examined as predictors of greater risk for depression over 15 months. RESULTS Higher time-varying sCD14 levels (β = 0.13; P = 0.04) and time-varying detectable viral loads (β = 0.71; P < 0.001) were independent predictors of a higher K/T ratio. Time-varying reactive urine toxicology results for stimulants (β = 0.53; P < 0.001) and greater proviral HIV DNA at baseline (β = 0.34; P < 0.001) independently predicted an increased P/T ratio. Greater time-varying, self-reported methamphetamine use uniquely predicted higher odds of screening positive for depression (Adjusted Odds Ratio = 1.08; 95% confidence interval: 1.01 to 1.17). CONCLUSIONS Ongoing stimulant use and HIV persistence independently predict dysregulated metabolism of amino acid precursors for catecholamines, but this did not explain amplified risk for depression.
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Affiliation(s)
- Antonio Chahine
- University of Miami Miller School of Medicine; Department of Public Health Sciences Miami, FL, USA
| | - Tulay Koru-Sengul
- University of Miami Miller School of Medicine; Department of Public Health Sciences Miami, FL, USA
| | - Daniel J. Feaster
- University of Miami Miller School of Medicine; Department of Public Health Sciences Miami, FL, USA
| | - Samantha E. Dilworth
- University of California, San Francisco School of Medicine; Center for AIDS Prevention Studies San Francisco, CA, USA
| | - Michael H. Antoni
- University of Miami College of Arts and Sciences; Department of Psychology Coral Gables, FL, USA
| | - Nichole Klatt
- University of Minnesota School of Medicine; Department of Surgery; Minneapolis, MN, USA
| | - Margaret E. Roach
- University of Miami Miller School of Medicine; Department of Microbiology and Immunology Miami, FL, USA
| | - Suresh Pallikkuth
- University of Miami Miller School of Medicine; Department of Microbiology and Immunology Miami, FL, USA
| | - Mark Sharkey
- University of Miami Miller School of Medicine; Department of Medicine Miami, FL, USA
| | - Jessica Salinas
- University of Miami Miller School of Medicine; Department of Medicine Miami, FL, USA
| | - Mario Stevenson
- University of Miami Miller School of Medicine; Department of Medicine Miami, FL, USA
| | - Savita Pahwa
- University of Miami Miller School of Medicine; Department of Microbiology and Immunology Miami, FL, USA
| | - Dietmar Fuchs
- Innsbruck Medical University; Institute for Biochemistry, Biocentre; Innsbruck, Austria
| | - Adam W. Carrico
- University of Miami Miller School of Medicine; Department of Public Health Sciences Miami, FL, USA
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19
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Metabolomic/lipidomic profiling of COVID-19 and individual response to tocilizumab. PLoS Pathog 2021; 17:e1009243. [PMID: 33524041 PMCID: PMC7877736 DOI: 10.1371/journal.ppat.1009243] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/11/2021] [Accepted: 12/18/2020] [Indexed: 02/07/2023] Open
Abstract
The current pandemic emergence of novel coronavirus disease (COVID-19) poses a relevant threat to global health. SARS-CoV-2 infection is characterized by a wide range of clinical manifestations, ranging from absence of symptoms to severe forms that need intensive care treatment. Here, plasma-EDTA samples of 30 patients compared with age- and sex-matched controls were analyzed via untargeted nuclear magnetic resonance (NMR)-based metabolomics and lipidomics. With the same approach, the effect of tocilizumab administration was evaluated in a subset of patients. Despite the heterogeneity of the clinical symptoms, COVID-19 patients are characterized by common plasma metabolomic and lipidomic signatures (91.7% and 87.5% accuracy, respectively, when compared to controls). Tocilizumab treatment resulted in at least partial reversion of the metabolic alterations due to SARS-CoV-2 infection. In conclusion, NMR-based metabolomic and lipidomic profiling provides novel insights into the pathophysiological mechanism of human response to SARS-CoV-2 infection and to monitor treatment outcomes. The current COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is markedly affecting the world population. Here we report about the small-molecule profile of patients hospitalized during the first wave of the COVID-19 pandemic in Florence (Italy). Using magnetic resonance spectroscopy, we showed that the infection induces profound changes in the metabolome. The analysis of the specific metabolite changes and correlations with clinical data enabled the identification of potential biochemical determinants of the disease fingerprint. We also followed how metabolic alterations revert towards those of the control group upon treatment with tocilizumab, a recombinant humanized monoclonal antibody against the interleukin-6 receptor. These results open up possibilities for the monitoring of novel patients and their individual response to treatment.
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20
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Li K, Cui LJ, Cao YX, Li SY, Shi LX, Qin XM, Du YG. UHPLC Q-Exactive MS-Based Serum Metabolomics to Explore the Effect Mechanisms of Immunological Activity of Astragalus Polysaccharides With Different Molecular Weights. Front Pharmacol 2021; 11:595692. [PMID: 33390982 PMCID: PMC7774101 DOI: 10.3389/fphar.2020.595692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/19/2020] [Indexed: 12/13/2022] Open
Abstract
Astragalus polysaccharides (APS) have a wide range of biological activities. Most researchers discuss total APS as the main research object. However, because the relative molecular weight of APS has a wide distribution, in-depth studies on the mechanisms of the biological activity of notable molecules are limited. For example, the relationship between the immunomodulatory effect of APS and its relative molecular weight has not been clearly defined. Therefore, in this paper, we separated and obtained APS of different molecular weights by ultrafiltration technology and then constructed a mouse cyclophosphamide-induced immunosuppression model to investigate the immune activity of APS of different molecular weights. The immune enhancement mechanism of APS was explored by examining changes in routine blood indicators, body weight, immune organs, and differential metabolites in mouse serum. Results showed that APS-I (molecular weight, >2,000 kDa), APS-II (molecular weight, 1.02 × 104 Da) and APS-III (molecular weight, 286 Da) could increase the number of immune cells in mouse serum and improve immune organ damage to varying degrees. Among the samples obtained, APS-II showed the best effects. Compared with those in the blank group, 29 metabolites determined by UHPLC Q-Exactive MS in the serum of the model group changed remarkably, and APS-I, APS-II, and APS-III respectively restored 13, 25, and 19 of these metabolites to normal levels. Metabolomics analysis revealed that APS-II is mainly responsible for the immunomodulatory activity of APS. Metabolomics analysis revealed that the mechanisms of this specific molecule may involve the regulation of phenylalanine metabolism, cysteine and methionine metabolism, tricarboxylic acid cycle (TCA cycle) and arginine and proline metabolism.
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Affiliation(s)
- Ke Li
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Lian-Jie Cui
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China
| | - Yu-Xin Cao
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Shu-Ying Li
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China.,College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China
| | - Li-Xia Shi
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Xue-Mei Qin
- Modern Research Center for Traditional Chinese Medicine, Shanxi University, Taiyuan, China
| | - Yu-Guang Du
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
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21
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Postolache TT, Wadhawan A, Rujescu D, Hoisington AJ, Dagdag A, Baca-Garcia E, Lowry CA, Okusaga OO, Brenner LA. Toxoplasma gondii, Suicidal Behavior, and Intermediate Phenotypes for Suicidal Behavior. Front Psychiatry 2021; 12:665682. [PMID: 34177652 PMCID: PMC8226025 DOI: 10.3389/fpsyt.2021.665682] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/30/2021] [Indexed: 12/27/2022] Open
Abstract
Within the general literature on infections and suicidal behavior, studies on Toxoplasma gondii (T. gondii) occupy a central position. This is related to the parasite's neurotropism, high prevalence of chronic infection, as well as specific and non-specific behavioral alterations in rodents that lead to increased risk taking, which are recapitulated in humans by T. gondii's associations with suicidal behavior, as well as trait impulsivity and aggression, mental illness and traffic accidents. This paper is a detailed review of the associations between T. gondii serology and suicidal behavior, a field of study that started 15 years ago with our publication of associations between T. gondii IgG serology and suicidal behavior in persons with mood disorders. This "legacy" article presents, chronologically, our primary studies in individuals with mood disorders and schizophrenia in Germany, recent attempters in Sweden, and in a large cohort of mothers in Denmark. Then, it reviews findings from all three meta-analyses published to date, confirming our reported associations and overall consistent in effect size [ranging between 39 and 57% elevation of odds of suicide attempt in T. gondii immunoglobulin (IgG) positives]. Finally, the article introduces certain links between T. gondii and biomarkers previously associated with suicidal behavior (kynurenines, phenylalanine/tyrosine), intermediate phenotypes of suicidal behavior (impulsivity, aggression) and state-dependent suicide risk factors (hopelessness/dysphoria, sleep impairment). In sum, an abundance of evidence supports a positive link between suicide attempts (but not suicidal ideation) and T. gondii IgG (but not IgM) seropositivity and serointensity. Trait impulsivity and aggression, endophenotypes of suicidal behavior have also been positively associated with T. gondii seropositivity in both the psychiatrically healthy as well as in patients with Intermittent Explosive Disorder. Yet, causality has not been demonstrated. Thus, randomized interventional studies are necessary to advance causal inferences and, if causality is confirmed, to provide hope that an etiological treatment for a distinct subgroup of individuals at an increased risk for suicide could emerge.
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Affiliation(s)
- Teodor T Postolache
- Department of Psychiatry, Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, United States.,Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Aurora, CO, United States.,Mental Illness Research, Education and Clinical Center (MIRECC), Veterans Integrated Service Network (VISN) 5, VA Capitol Health Care Network, Baltimore, MD, United States
| | - Abhishek Wadhawan
- Department of Psychiatry, Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, United States.,Department of Psychiatry, Saint Elizabeth's Hospital, Washington, DC, United States
| | - Dan Rujescu
- Department of Psychiatry, Psychotherapy and Psychosomatics, University of Halle, Halle, Germany
| | - Andrew J Hoisington
- Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Aurora, CO, United States.,Department of Systems Engineering and Management, Air Force Institute of Technology, Dayton, OH, United States.,Department of Physical Medicine & Rehabilitation, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States
| | - Aline Dagdag
- Department of Psychiatry, Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Enrique Baca-Garcia
- Department of Psychiatry, Jimenez Diaz Foundation Hospital, Madrid, Spain.,Department of Psychiatry, Madrid Autonomous University, Madrid, Spain.,Department of Psychiatry, Rey Juan Carlos University Hospital, Móstoles, Spain.,Department of Psychiatry, General Hospital of Villalba, Madrid, Spain.,Department of Psychiatry, Infanta Elena University Hospital, Valdemoro, Spain.,Universidad Catolica del Maule, Talca, Chile.,Department of Psychiatry, Centre Hospitalier Universitaire de Nîmes, Nîmes, France
| | - Christopher A Lowry
- Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Aurora, CO, United States.,Department of Physical Medicine & Rehabilitation, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States.,Department of Integrative Physiology, Center for Neuroscience, Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Olaoluwa O Okusaga
- Department of Psychiatry, Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, United States.,Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, United States.,Michael E DeBakey VA Medical Center, Houston, TX, United States
| | - Lisa A Brenner
- Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Aurora, CO, United States.,Department of Physical Medicine & Rehabilitation, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States.,Department of Psychiatry & Neurology, University of Colorado, Anschutz Medical Campus, Aurora, CO, United States
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22
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Al-Sadoon I, Wittmann I, Kun S, Ahmann M, Konyi A, Verzár Z. Assessment of serum phenylalanine and tyrosine isomers in patients with ST-segment elevation vs non-ST-segment elevation myocardial infarction. J Clin Lab Anal 2020; 35:e23613. [PMID: 33043503 PMCID: PMC7891521 DOI: 10.1002/jcla.23613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
Background Under conditions of oxidative stress, hydroxyl radicals can oxidize phenylalanine (Phe) into various tyrosine (Tyr) isomers (meta‐, ortho‐, and para‐tyrosine; m‐, o‐, and p‐Tyr), depending on the location of the hydroxyl group on the oxidized benzyl ring. This study aimed to compare patients with ST‐segment elevation myocardial infarction (STEMI) and non‐STEMI (NSTEMI) and the serum levels of Phe and Tyr isomers at the aortic root and distal to the culprit lesion in both groups. Methods Forty‐four patients participated in the study: 23 with STEMI and 21 with NSTEMI. Arterial blood samples were taken from the aortic root through a guiding catheter and from the culprit vessel segment distal from the primary lesion with an aspiration catheter, during the percutaneous coronary intervention. Serum levels of Phe, p‐Tyr, m‐Tyr, and o‐Tyr were determined using reverse‐phase high‐performance liquid chromatography. Results Serum levels of Phe were significantly higher distal to the culprit lesion compared to the aortic root in patients with STEMI. Serum p‐Tyr/Phe and m‐Tyr/Phe concentration ratios were both lower distal to the culprit lesion than at the aortic root in patients with STEMI. There were no statistically significant differences with respect to changes in serum Phe and Tyr isomers distal to the culprit lesion compared to the aortic root in patients with NSTEMI. Conclusion Our data suggest that changes in serum levels of different Tyr isomers can mediate the effects of oxidative stress during myocardial infarction.
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Affiliation(s)
- Ied Al-Sadoon
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pécs, Pécs, Hungary
| | - István Wittmann
- Department of Medicine and Nephrological Center, Medical School, University of Pécs, Pécs, Hungary
| | - Szilard Kun
- Department of Medicine and Nephrological Center, Medical School, University of Pécs, Pécs, Hungary
| | - Mercédesz Ahmann
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pécs, Pécs, Hungary
| | - Attila Konyi
- Heart Institute, Medical School, University of Pécs, Pécs, Hungary
| | - Zsófia Verzár
- Doctoral School of Health Sciences, Faculty of Health Science, University of Pécs, Pécs, Hungary
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23
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Modulation of Phenylalanine and Tyrosine Metabolism in HIV-1 Infected Patients with Neurocognitive Impairment: Results from a Clinical Trial. Metabolites 2020; 10:metabo10070274. [PMID: 32635406 PMCID: PMC7408387 DOI: 10.3390/metabo10070274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/17/2020] [Accepted: 06/29/2020] [Indexed: 12/22/2022] Open
Abstract
To investigate the effects of oral bacteriotherapy on intestinal phenylalanine and tyrosine metabolism, in this longitudinal, double-arm trial, 15 virally suppressed HIV+ individuals underwent blood and fecal sample collection at baseline and after 6 months of oral bacteriotherapy. A baseline fecal sample was collected from 15 healthy individuals and served as control group for the baseline levels of fecal phenylalanine and tyrosine. CD4 and CD8 immune activation (CD38+) was evaluated by flow cytometry. Amino acid evaluation on fecal samples was conducted by Proton Nuclear Magnetic Resonance. Results showed that HIV+ participants displayed higher baseline phenylalanine/tyrosine ratio values than healthy volunteers. A significand reduction in phenylalanine/tyrosine ratio and peripheral CD4+ CD38+ activation was observed at the end of oral bacteriotherapy. In conclusion, probiotics beneficially affect the immune activation of HIV+ individuals. Therefore, the restoration of intestinal amino acid metabolism could represent the mechanisms through which probiotics exert these desirable effects.
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24
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De Picker L, Fransen E, Coppens V, Timmers M, de Boer P, Oberacher H, Fuchs D, Verkerk R, Sabbe B, Morrens M. Immune and Neuroendocrine Trait and State Markers in Psychotic Illness: Decreased Kynurenines Marking Psychotic Exacerbations. Front Immunol 2020; 10:2971. [PMID: 32010121 PMCID: PMC6978914 DOI: 10.3389/fimmu.2019.02971] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 12/03/2019] [Indexed: 01/18/2023] Open
Abstract
Objective: Different patterns of immune system upregulation are present in the acute vs. post-treatment states of psychotic illness. We explored the existence of state and trait markers in the peripheral immune system and two immune-associated neuroendocrine pathways (IDO and GTP-CH1 pathway) in a longitudinal sample of psychosis patients. We also evaluated the association of these markers with neuropsychiatric symptomatology. Method: Plasma concentrations of peripheral blood markers were measured in a transdiagnostic group of 49 inpatients with acute psychosis and 52 matched healthy control subjects. Samples were obtained in patients within 48 h after hospital admission for an acute psychotic episode (before initiation of antipsychotics), after 1-2 weeks and again after 8 weeks of treatment. Kynurenine, kynurenic acid (KA), 3-hydroxykynurenine (3-HK), quinolinic acid (QA), phenylalanine, tyrosine, nitrite, and neopterin were measured using HPLC and LC-MS/MS analysis. Concentrations of CRP, CCL2 (MCP1) and cytokines were determined with multiplex immunoassay. PANSS interviews and cognitive tests were performed at baseline and follow-up. Mixed model analyses were used to identify trait and state markers. Results: Patients had significantly higher plasma concentrations of CRP, CCL2, IL1RA, and lower concentrations of KA and KA/Kyn at all time points (F7.5-17.5, all p < 0.001). Increased concentrations of IL6, IL8, IL1RA, TNFα, and CCL2 and decreased QA and 3-HK (F8.7-21.0, all p < 0.005) were found in the acute psychotic state and normalized after treatment. Low nitrite concentrations at admission rose sharply after initiation of antipsychotic medication (F42.4, p < 0.001). PANSS positive scale scores during the acute episode correlated with pro-inflammatory immune markers (r ≥ |0.5|), while negative scale scores correlated inversely with IDO pathway markers (r ≥ |0.4|). Normalization of KA and 3-HK levels between admission and follow-up corresponded to a larger improvement of negative symptoms (r = 0.5, p < 0.030) A reverse association was found between relative improvement of SDST scores and decreasing KA levels (r = 0.5, p < 0.010). Conclusion: The acute psychotic state is marked by state-specific increases of immune markers and decreases in peripheral IDO pathway markers. Increased CRP, CCL2, and IL1RA, and decreased KA and KA/Kyn are trait markers of psychotic illness.
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Affiliation(s)
- Livia De Picker
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute, University of Antwerp, Antwerp, Belgium.,University Department of Psychiatry, Campus Duffel, Antwerp, Belgium
| | - Erik Fransen
- StatUa Center for Statistics, University of Antwerp, Antwerp, Belgium
| | - Violette Coppens
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute, University of Antwerp, Antwerp, Belgium.,University Department of Psychiatry, Campus Duffel, Antwerp, Belgium
| | - Maarten Timmers
- Janssen Research and Development, Janssen Pharmaceutica N.V., Beerse, Belgium.,Reference Center for Biological Markers of Dementia (BIODEM), Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Peter de Boer
- Janssen Research and Development, Janssen Pharmaceutica N.V., Beerse, Belgium
| | - Herbert Oberacher
- Core Facility Metabolomics, Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Dietmar Fuchs
- Biocenter, Division of Biological Chemistry, Medical University of Innsbruck, Innsbruck, Austria
| | - Robert Verkerk
- Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Bernard Sabbe
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute, University of Antwerp, Antwerp, Belgium.,University Department of Psychiatry, Campus Duffel, Antwerp, Belgium
| | - Manuel Morrens
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute, University of Antwerp, Antwerp, Belgium.,University Department of Psychiatry, Campus Duffel, Antwerp, Belgium
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25
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Jobin PG, Solis N, Machado Y, Bell PA, Rai SK, Kwon NH, Kim S, Overall CM, Butler GS. Moonlighting matrix metalloproteinase substrates: Enhancement of proinflammatory functions of extracellular tyrosyl-tRNA synthetase upon cleavage. J Biol Chem 2019; 295:2186-2202. [PMID: 31771979 PMCID: PMC7039567 DOI: 10.1074/jbc.ra119.010486] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/03/2019] [Indexed: 12/19/2022] Open
Abstract
Tyrosyl-tRNA synthetase ligates tyrosine to its cognate tRNA in the cytoplasm, but it can also be secreted through a noncanonical pathway. We found that extracellular tyrosyl-tRNA synthetase (YRS) exhibited proinflammatory activities. In addition to acting as a monocyte/macrophage chemoattractant, YRS initiated signaling through Toll-like receptor 2 (TLR2) resulting in NF-κB activation and release of tumor necrosis factor α (TNFα) and multiple chemokines, including MIP-1α/β, CXCL8 (IL8), and CXCL1 (KC) from THP1 monocyte and peripheral blood mononuclear cell–derived macrophages. Furthermore, YRS up-regulated matrix metalloproteinase (MMP) activity in a TNFα-dependent manner in M0 macrophages. Because MMPs process a variety of intracellular proteins that also exhibit extracellular moonlighting functions, we profiled 10 MMPs for YRS cleavage and identified 55 cleavage sites by amino-terminal oriented mass spectrometry of substrates (ATOMS) positional proteomics and Edman degradation. Stable proteoforms resulted from cleavages near the start of the YRS C-terminal EMAPII domain. All of the MMPs tested cleaved at ADS386↓387LYV and VSG405↓406LVQ, generating 43- and 45-kDa fragments. The highest catalytic efficiency for YRS was demonstrated by MMP7, which is highly expressed by monocytes and macrophages, and by neutrophil-specific MMP8. MMP-cleaved YRS enhanced TLR2 signaling, increased TNFα secretion from macrophages, and amplified monocyte/macrophage chemotaxis compared with unprocessed YRS. The cleavage of YRS by MMP8, but not MMP7, was inhibited by tyrosine, a substrate of the YRS aminoacylation reaction. Overall, the proinflammatory activity of YRS is enhanced by MMP cleavage, which we suggest forms a feed-forward mechanism to promote inflammation.
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Affiliation(s)
- Parker G Jobin
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Nestor Solis
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Yoan Machado
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Peter A Bell
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Simran K Rai
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Graduate Program in Bioinformatics, University of British Columbia, Vancouver, British Columbia V5T 4S6, Canada
| | - Nam Hoon Kwon
- College of Pharmacy, Seoul National University, 151-742, Seoul, Republic of Korea; Medicinal Bioconvergence Research Center, Seoul National University, 151-742, Seoul, Republic of Korea
| | - Sunghoon Kim
- College of Pharmacy, Seoul National University, 151-742, Seoul, Republic of Korea; Medicinal Bioconvergence Research Center, Seoul National University, 151-742, Seoul, Republic of Korea
| | - Christopher M Overall
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada.
| | - Georgina S Butler
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
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Dopaminergic impact of cART and anti-depressants on HIV neuropathogenesis in older adults. Brain Res 2019; 1723:146398. [PMID: 31442412 DOI: 10.1016/j.brainres.2019.146398] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/09/2019] [Accepted: 08/19/2019] [Indexed: 01/21/2023]
Abstract
The success of combination antiretroviral therapy (cART) has transformed HIV infection into a chronic condition, resulting in an increase in the number of older, cART-treated adults living with HIV. This has increased the incidence of age-related, non-AIDS comorbidities in this population. One of the most common comorbidities is depression, which is also associated with cognitive impairment and a number of neuropathologies. In older people living with HIV, treating these overlapping disorders is complex, often creating pill burden or adverse drug-drug interactions that can exacerbate these neurologic disorders. Depression, NeuroHIV and many of the neuropsychiatric therapeutics used to treat them impact the dopaminergic system, suggesting that dopaminergic dysfunction may be a common factor in the development of these disorders. Further, changes in dopamine can influence the development of inflammation and the regulation of immune function, which are also implicated in the progression of NeuroHIV and depression. Little is known about the optimal clinical management of drug-drug interactions between cART drugs and antidepressants, particularly in regard to dopamine in older people living with HIV. This review will discuss those interactions, first examining the etiology of NeuroHIV and depression in older adults, then discussing the interrelated effects of dopamine and inflammation on these disorders, and finally reviewing the activity and interactions of cART drugs and antidepressants on each of these factors. Developing better strategies to manage these comorbidities is critical to the health of the aging, HIV-infected population, as the older population may be particularly vulnerable to drug-drug interactions affecting dopamine.
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27
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Harrison ML, Wolfe AS, Fordyce J, Rock J, García AA, Zuñiga JA. The additive effect of type 2 diabetes on fibrinogen, von Willebrand factor, tryptophan and threonine in people living with HIV. Amino Acids 2019; 51:783-793. [PMID: 30868261 DOI: 10.1007/s00726-019-02715-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 02/22/2019] [Indexed: 01/07/2023]
Abstract
Chronic immune activation and ensuing inflammation that accompany HIV infection lead to adverse metabolic consequences and an increased risk of type 2 diabetes (T2D). We examined the additive effects of T2D on circulating biomarkers involved in inflammation, coagulation, and vascular function along with plasma amino acids in people living with HIV (PLWH). This cross-sectional study included PLWH with and without T2D (n = 32 total). Analyses involved a multiplex platform for circulating biomarkers and gas chromatography-vacuum ultraviolet spectroscopy for plasma amino acids. In PLWH and T2D, both fibrinogen (2.0 ± 0.6 vs 1.6 ± 0.4 µg/mL, p = 0.02) and von Willebrand factor (vWF) (40.8 ± 17.2 vs 26.7 ± 13.8 µg/mL, p = 0.02) were increased and tryptophan (47 ± 6 vs 53 ± 8 nmol/mL, p = 0.03) and threonine (102 ± 25 vs 125 ± 33 nmol/mL, p = 0.03) were decreased. Fibrinogen, as a biomarker of inflammation, and vWF, as a biomarker of endothelial dysfunction, are augmented by the combined effects of HIV and T2D and may contribute to the pathogenesis of T2D in PLWH. Chronic immune activation and inflammation compromise the integrity of the intestinal mucosa, which increases mucus production. Tryptophan metabolism is altered by a loss of intestinal membrane integrity and threonine is consumed in the production of mucus. Metabolic competition arising from increased protein synthesis in the setting of chronic inflammation along with the associated loss in intestinal membrane integrity may be a primary mechanism in the pathogenesis of T2D in PLWH and requires further investigation.
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Affiliation(s)
- Michelle L Harrison
- Department of Kinesiology and Health Education, University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX, 78712, USA.
| | - Anthony S Wolfe
- Department of Kinesiology and Health Education, University of Texas at Austin, 2109 San Jacinto Blvd, Austin, TX, 78712, USA
| | | | - Jamie Rock
- School of Nursing, University of Texas, Austin, USA
| | - Alexandra A García
- School of Nursing, University of Texas, Austin, USA.,Department of Population Health, Dell Medical School, University of Texas, Austin, USA
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28
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Oda R, Agsalda-Garcia M, Loi N, Kamada N, Milne C, Killeen J, Choi SY, Lim E, Acosta-Maeda T, Misra A, Shiramizu B. Raman-Enhanced Spectroscopy Distinguishes Anal Squamous Intraepithelial Lesions in Human Immunodeficiency Virus-Serodiscordant Couples. AIDS Res Hum Retroviruses 2019; 35:287-294. [PMID: 30612435 DOI: 10.1089/aid.2018.0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
HIV-positive individuals are at increased risk for precancerous anal squamous intraepithelial lesions (SILs). Anal cytology and digital rectal examination are performed as screening tools, but extensive training and appropriate instruments are required to follow up on an abnormal anal cytology. Thus, novel approaches to SIL evaluation could improve better health care follow-up by efficient and timely diagnosis to offer treatment options. Recently, Raman-enhanced spectroscopy (RESpect) has emerged as a potential new tool for early identification of SIL. RESpect is a noninvasive, label-free, laser-based technique that identifies molecular composition of tissues and cells. HIV-serodiscordant couples had anal biopsies obtained during high-resolution anoscopy. RESpect was performed on the specimens. Principal component analysis of the data identified differences between normal and abnormal tissue as well as HIV-positive and HIV-negative individuals of each couple even with similar pathologies. RESpect has the potential to change the paradigm of anal pathology diagnosis and could provide insight into different pathways leading to SIL in HIV-serodiscordant couples.
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Affiliation(s)
- Robert Oda
- 1 Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Melissa Agsalda-Garcia
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Nicholas Loi
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Natalie Kamada
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Cris Milne
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Jeffrey Killeen
- 3 Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - So Yung Choi
- 4 Biostatistics Core, Department of Complementary and Integrative Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Eunjung Lim
- 4 Biostatistics Core, Department of Complementary and Integrative Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Tayro Acosta-Maeda
- 5 Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Anupam Misra
- 5 Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Bruce Shiramizu
- 2 Department of Tropical Medicine, Medical Microbiology and Pharmacology, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
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29
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Peng X, Brenner LA, Mathai AJ, Cook TB, Fuchs D, Postolache N, Groer MW, Pandey JP, Mohyuddin F, Giegling I, Wadhawan A, Hartmann AM, Konte B, Brundin L, Friedl M, Stiller JW, Lowry CA, Rujescu D, Postolache TT. Moderation of the relationship between Toxoplasma gondii seropositivity and trait impulsivity in younger men by the phenylalanine-tyrosine ratio. Psychiatry Res 2018; 270:992-1000. [PMID: 30057257 PMCID: PMC6371810 DOI: 10.1016/j.psychres.2018.03.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 12/23/2017] [Accepted: 03/20/2018] [Indexed: 11/27/2022]
Abstract
Previously, we reported that Toxoplasma gondii (T. gondii)-seropositivity is associated with higher impulsive sensation seeking in younger men. As dopaminergic and serotonergic signaling regulate impulsivity, and as T. gondii directly and indirectly affects dopaminergic signaling and induces activation of the kynurenine pathway leading to the diversion of tryptophan from serotonin production, we investigated if dopamine and serotonin precursors or the tryptophan metabolite kynurenine interact with the T. gondii-impulsivity association. In 950 psychiatrically healthy participants, trait impulsivity scores were related to T. gondii IgG seropositivity. Interactions were also identified between categorized levels of phenylalanine (Phe), tyrosine (Tyr), Phe:Tyr ratio, kynurenine (Kyn), tryptophan (Trp) and Kyn:Trp ratio, and age and gender. Only younger T. gondii-positive men with a high Phe:Tyr ratio, were found to have significantly higher impulsivity scores. There were no significant associations in other demographic groups, including women and older men. No significant effects or interactions were identified for Phe, Tyr, Kyn, Trp, or Kyn:Trp ratio. Phe:Tyr ratio, therefore, may play a moderating role in the association between T. gondii seropositivity and impulsivity in younger men. These results could potentially lead to individualized approaches to reduce impulsivity, based on combined demographic, biochemical and serological factors.
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Affiliation(s)
- Xiaoqing Peng
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA,Saint Elizabeths Hospital, Psychiatry Residency Training Program, Washington, DC, USA
| | - Lisa A. Brenner
- Rocky Mountain Mental Illness Research, Education and Clinical Center (MIRECC) for Suicide Prevention, Denver, CO, USA,University of Colorado Anschutz Medical Campus, Departments of Psychiatry, Physical Medicine and Rehabilitation, and Neurology, Denver, CO, USA,Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE). Denver, CO, USA
| | - Ashwin J. Mathai
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA,Saint Elizabeths Hospital, Psychiatry Residency Training Program, Washington, DC, USA
| | - Thomas B. Cook
- Department of Public Health & Mercyhurst Institute for Public Health, Mercyhurst University, Erie, PA, USA
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Nadine Postolache
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Janardan P. Pandey
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Farooq Mohyuddin
- Saint Elizabeths Hospital, Psychiatry Residency Training Program, Washington, DC, USA
| | - Ina Giegling
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Abhishek Wadhawan
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA,Saint Elizabeths Hospital, Psychiatry Residency Training Program, Washington, DC, USA
| | - Annette M. Hartmann
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Bettina Konte
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Lena Brundin
- Division of Psychiatry and Behavioral Medicine, College of Human Medicine, Michigan State University and the Van Andel Research Institute, Grand Rapids, MI, USA
| | - Marion Friedl
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - John W. Stiller
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA,Saint Elizabeths Hospital, Psychiatry Residency Training Program, Washington, DC, USA
| | - Christopher A. Lowry
- Rocky Mountain Mental Illness Research, Education and Clinical Center (MIRECC) for Suicide Prevention, Denver, CO, USA,Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE). Denver, CO, USA,Department of Integrative Physiology and Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA,Department of Physical Medicine and Rehabilitation and Center for Neuroscience, University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - Dan Rujescu
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Teodor T. Postolache
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, MD, USA,Rocky Mountain Mental Illness Research, Education and Clinical Center (MIRECC) for Suicide Prevention, Denver, CO, USA,Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE). Denver, CO, USA,VA Capitol Health Care Network, Mental Illness Research, Education and Clinical Center (VISN 5 MIRECC), Baltimore, MD, USA,Correspondent author. (T.T. Postolache)
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Ahmed D, Roy D, Cassol E. Examining Relationships between Metabolism and Persistent Inflammation in HIV Patients on Antiretroviral Therapy. Mediators Inflamm 2018; 2018:6238978. [PMID: 30363715 PMCID: PMC6181007 DOI: 10.1155/2018/6238978] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 09/06/2018] [Indexed: 12/30/2022] Open
Abstract
With the advent of antiretroviral therapy (ART), HIV-infected individuals are now living longer and healthier lives. However, ART does not completely restore health and treated individuals are experiencing increased rates of noncommunicable diseases such as dyslipidemia, insulin resistance, type 2 diabetes, cardiovascular disease, and nonalcoholic fatty liver disease. While it is well known that persistent immune activation and inflammation contribute to the development of these comorbid diseases, the mechanisms underlying this chronic activation remain incompletely understood. In this review, we will discuss emerging evidence that suggests that alterations in cellular metabolism may play a central role in driving this immune dysfunction in HIV patients on ART.
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Affiliation(s)
- Duale Ahmed
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - David Roy
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada
| | - Edana Cassol
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada
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31
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Vancassel S, Capuron L, Castanon N. Brain Kynurenine and BH4 Pathways: Relevance to the Pathophysiology and Treatment of Inflammation-Driven Depressive Symptoms. Front Neurosci 2018; 12:499. [PMID: 30140200 PMCID: PMC6095005 DOI: 10.3389/fnins.2018.00499] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/03/2018] [Indexed: 12/13/2022] Open
Abstract
The prevalence of depressive disorders is growing worldwide, notably due to stagnation in the development of drugs with greater antidepressant efficacy, the continuous large proportion of patients who do not respond to conventional antidepressants, and the increasing rate of chronic medical conditions associated with an increased vulnerability to depressive comorbidities. Accordingly, better knowledge on the pathophysiology of depression and mechanisms underlying depressive comorbidities in chronic medical conditions appears urgently needed, in order to help in the development of targeted therapeutic strategies. In this review, we present evidence pointing to inflammatory processes as key players in the pathophysiology and treatment of depressive symptoms. In particular, we report preclinical and clinical findings showing that inflammation-driven alterations in specific metabolic pathways, namely kynurenine and tetrahydrobiopterin (BH4) pathways, leads to substantial alterations in the metabolism of serotonin, glutamate and dopamine that are likely to contribute to the development of key depressive symptom dimensions. Accordingly, anti-inflammatory interventions targeting kynurenine and BH4 pathways may be effective as novel treatment or as adjuvants of conventional medications rather directed to monoamines, notably when depressive symptomatology and inflammation are comorbid in treated patients. This notion is discussed in the light of recent findings illustrating the tight interactions between known antidepressant drugs and inflammatory processes, as well as their therapeutic implications. Altogether, this review provides valuable findings for moving toward more adapted and personalized therapeutic strategies to treat inflammation-related depressive symptoms.
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Affiliation(s)
- Sylvie Vancassel
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), INRA, Bordeaux, France
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), Bordeaux University, Bordeaux, France
| | - Lucile Capuron
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), INRA, Bordeaux, France
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), Bordeaux University, Bordeaux, France
| | - Nathalie Castanon
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), INRA, Bordeaux, France
- UMR 1286, Laboratory of Nutrition and Integrative Neurobiology (NutriNeuro), Bordeaux University, Bordeaux, France
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32
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Yan L, Zhao C, Zhang J, Qiu L, Chen Z. Transcriptomic analyses of gastrointestinal function in the "dwarf" and "medium" forms of Sthenoteuthis oualaniensis during sexual maturation. PLoS One 2018; 13:e0199053. [PMID: 29897993 PMCID: PMC5999225 DOI: 10.1371/journal.pone.0199053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/30/2018] [Indexed: 11/21/2022] Open
Abstract
Sthenoteuthis oualaniensis (SA) is an important squid species in the South China Sea. Based on SA samples collected in 2016, SA was divided into the “dwarf” form (DF) and “medium” form (MF). To understand the changes in gastrointestinal function in SA during sexual maturation, we undertook transcriptomic analyses of the stomach and intestine tissues of the mature and immature DF and MF of SA using the deep-sequencing platform Illumina HiSeq™. We exploited a high-throughput method to delineate differentially expressed genes (DEGs) in the DF and MF of SA. A total of 135464 unigenes (68627 unigenes of the DG and 66837 unigenes of the MF) were generated. We identified 7965 and 4051 relative DEGs in the intestine and stomach tissues of the mature DF of SA compared with those of the immature DF of SA; and 22138 and 18460 DEGs in the intestine and stomach of the mature MF of SA compared with those of the immature MF of SA. Gastrointestinal function related to the metabolism of lipids, amino acids, glucose, and energy were changed in SA during sexual maturation. This work is the first to identify a set of genes associated with gastrointestinal function during sexual maturation in SA.
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Affiliation(s)
- Lulu Yan
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, P. R. China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, P. R. China
| | - Chao Zhao
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, P. R. China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, P. R. China
| | - Jun Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, P. R. China
- Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture, Guangzhou, P. R. China
| | - Lihua Qiu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, P. R. China
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, Beijing, P. R. China
| | - Zuozhi Chen
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, P. R. China
- Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture, Guangzhou, P. R. China
- * E-mail:
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33
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Oweira H, Lahdou I, Opelz G, Daniel V, Terness P, Schmidt J, Mehrabi A, Fusch G, Schefold J, Zidan A, Sadeghi M. Association of pre- and early post-transplant serum amino acids and metabolites of amino acids and liver transplant outcome. Transpl Immunol 2017; 46:42-48. [PMID: 29258878 DOI: 10.1016/j.trim.2017.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 12/07/2017] [Indexed: 01/20/2023]
Abstract
The aim of the present study was to investigate association of serum amino (AA) acids and metabolites of AAs with post-transplant outcome in liver transplant recipients. Eighty-nine patients with end-stage liver diseases and available pre- and early post-transplant serum were characterised as patients with (GI) and without one-year mortality (GII) and patients with and without early graft dysfunction (EAD). A panel of pre- and early post-transplant serum levels of AAs and early and metabolites of tryptophan were measured using tandem mass spectrometry. Patient groups had significantly higher pre-transplant serum levels of phenylalanine, tryptophan, and tryptophan metabolites than healthy controls (for all p<0.001). Pre-transplant serum levels of all these parameters were significantly higher in GI than in GII (for all p<0.001). GI had a higher MELD score and re-transplantation number than GII (p≤0.005 for both investigations). Serum bilirubin on day 5 and serum phenylalanine on day 10 post-transplant were associated parameters of mortality, whereas day 1post-transplant phenylalanine and kynurenine and female gender were associated parameters of EAD. Our results indicate that pre- and early post-transplant levels of phenylalanine, tryptophan and metabolites of tryptophan are increased in patients and are associated with EAD and one-year mortality in liver transplant recipients.
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Affiliation(s)
- H Oweira
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany; General and Visceral Surgery, Hirslanden Private Hospital, Zurich, Switzerland.
| | - I Lahdou
- Transplantation-Immunology, University of Heidelberg, Germany
| | - G Opelz
- Transplantation-Immunology, University of Heidelberg, Germany.
| | - V Daniel
- Transplantation-Immunology, University of Heidelberg, Germany.
| | - P Terness
- Transplantation-Immunology, University of Heidelberg, Germany.
| | - J Schmidt
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany; General and Visceral Surgery, Hirslanden Private Hospital, Zurich, Switzerland.
| | - A Mehrabi
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany.
| | - G Fusch
- Department of Paediatrics, McMaster University, Hamilton, Canada.
| | - J Schefold
- Department of Intensive Care Medicine Inselspital, Bern University Hospital, Freiburgstrasse 18, CH-3012 Bern, Switzerland.
| | - A Zidan
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany; Department of HPB and liver transplantation, Rajhy Liver Hospital, Assiut University, Assiut, Egypt.
| | - M Sadeghi
- Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany; Transplantation-Immunology, University of Heidelberg, Germany.
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34
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Marcos-Pérez D, Sánchez-Flores M, Maseda A, Lorenzo-López L, Millán-Calenti JC, Strasser B, Gostner JM, Fuchs D, Pásaro E, Valdiglesias V, Laffon B. Frailty Status in Older Adults Is Related to Alterations in Indoleamine 2,3-Dioxygenase 1 and Guanosine Triphosphate Cyclohydrolase I Enzymatic Pathways. J Am Med Dir Assoc 2017; 18:1049-1057. [PMID: 28801236 DOI: 10.1016/j.jamda.2017.06.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 06/19/2017] [Accepted: 06/22/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Frailty is a multidimensional syndrome correlated to the loss of homeostasis and increased vulnerability to stressors, which is associated with increase in the risk of disability, comorbidity, hospitalization, and death in the elderly. It is based on the interplay of physiological, psychological, social, and environmental factors. OBJECTIVES Because aging involves a detrimental immune response, this work aimed to assess the possible role of chronic low-grade immune stimulation on frailty status in the elderly. METHODS Biomarkers involved in indoleamine 2,3-dioxygenase 1 and guanosine triphosphate cyclohydrolase I enzymatic pathways (namely neopterin, tryptophan, kynurenine, phenylalanine, tyrosine, and nitrite) were analyzed in a population of Spanish older adults aged 65 years and above, and their relationships with frailty status were evaluated. RESULTS Significant increases in neopterin levels, kynurenine/tryptophan ratio, and phenylalanine/tyrosine ratio, and significant decreases in tryptophan, nitrite and tyrosine concentrations in frail individuals compared with nonfrail persons were obtained. Significant correlations were also observed between immune biomarkers, indicating they change in parallel, thus, pointing to interrelated causes. Besides, reference ranges for a number of immune biomarkers in the population of robust older adults were established for the first time. CONCLUSIONS Results obtained in the present study are consistent with the idea that frailty status in the elderly is associated with an additional degree of immune stimulation, manifested in a more intense disturbance of indoleamine 2,3-dioxygenase 1 and guanosine triphosphate cyclohydrolase I pathways than in nonfrail or prefrail older adults.
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Affiliation(s)
- Diego Marcos-Pérez
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, A Coruña, Spain; Department of Cell and Molecular Biology, Universidade da Coruña, A Coruña, Spain
| | - María Sánchez-Flores
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, A Coruña, Spain; Department of Cell and Molecular Biology, Universidade da Coruña, A Coruña, Spain
| | - Ana Maseda
- Gerontology Research Group, Universidade da Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, A Coruña, Spain
| | - Laura Lorenzo-López
- Gerontology Research Group, Universidade da Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, A Coruña, Spain
| | - José C Millán-Calenti
- Gerontology Research Group, Universidade da Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, A Coruña, Spain
| | | | | | - Dietmar Fuchs
- Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Eduardo Pásaro
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, A Coruña, Spain
| | - Vanessa Valdiglesias
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, A Coruña, Spain.
| | - Blanca Laffon
- DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, A Coruña, Spain
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35
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Tavano B, Tsipouri V, Hardy GAD, Royle CM, Keegan MR, Fuchs D, Patterson S, Almond N, Berry N, Ham C, Ferguson D, Boasso A. Immune Responses in the Central Nervous System Are Anatomically Segregated in a Non-Human Primate Model of Human Immunodeficiency Virus Infection. Front Immunol 2017; 8:361. [PMID: 28424694 PMCID: PMC5371826 DOI: 10.3389/fimmu.2017.00361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/14/2017] [Indexed: 12/05/2022] Open
Abstract
The human immunodeficiency virus (HIV) accesses the central nervous system (CNS) early during infection, leading to HIV-associated cognitive impairment and establishment of a viral reservoir. Here, we describe a dichotomy in inflammatory responses in different CNS regions in simian immunodeficiency virus (SIV)-infected macaques, a model for HIV infection. We found increased expression of inflammatory genes and perivascular leukocyte infiltration in the midbrain of SIV-infected macaques. Conversely, the frontal lobe showed downregulation of inflammatory genes associated with interferon-γ and interleukin-6 pathways, and absence of perivascular cuffing. These immunologic alterations were not accompanied by differences in SIV transcriptional activity within the tissue. Altered expression of genes associated with neurotoxicity was observed in both midbrain and frontal lobe. The segregation of inflammatory responses to specific regions of the CNS may both account for HIV-associated neurological symptoms and constitute a critical hurdle for HIV eradication by shielding the CNS viral reservoir from antiviral immunity.
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Affiliation(s)
- Barbara Tavano
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Vicky Tsipouri
- NIHR Biological Research Unit, Royal Brompton Hospital, London, UK
| | - Gareth A D Hardy
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Caroline M Royle
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Michael R Keegan
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK.,ViiV Healthcare, Middlesex, UK
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Steven Patterson
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - Neil Almond
- Division of Virology, National Institute for Biological Standards and Controls (NIBSC), Potters Bar, Hertfordshire, UK
| | - Neil Berry
- Division of Virology, National Institute for Biological Standards and Controls (NIBSC), Potters Bar, Hertfordshire, UK
| | - Claire Ham
- Division of Virology, National Institute for Biological Standards and Controls (NIBSC), Potters Bar, Hertfordshire, UK
| | - Deborah Ferguson
- Division of Virology, National Institute for Biological Standards and Controls (NIBSC), Potters Bar, Hertfordshire, UK
| | - Adriano Boasso
- Centre for Immunology and Vaccinology (CIV), Imperial College London, Chelsea and Westminster Hospital, London, UK
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Möller M, Malan L, Magnusson M, Mels CMC, Malan NT. Defensive coping and essential amino acid markers as possible predictors for structural vascular disease in an African and Caucasian male cohort: The SABPA study. Psychophysiology 2017; 54:696-705. [PMID: 28218795 DOI: 10.1111/psyp.12833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 12/18/2016] [Indexed: 01/21/2023]
Abstract
Defensive coping (DefS), oxidative stress, inflammation, and related amino acids (phenylalanine [Phe] and tyrosine [Tyr]) have been implicated in cardiovascular disease. This study assessed whether inflammation, oxidative stress, changes in essential amino acids, and altered coping strategies are correlated with subclinical vascular changes in African (n = 82) and Caucasian (n = 100) men from the Sympathetic Activity and Ambulatory Blood Pressure in Africans (SABPA) study. The Coping Strategy Indicator questionnaire identified DefS participants. Ambulatory blood pressure (BP) was monitored for 24 h, whereas carotid intima media thickness (CIMT) and cross-sectional wall area (CSWA) were determined ultrasonically. Essential amino acids were analyzed with a liquid chromatography tandem mass spectrometry method. Oxidative-inflammatory markers were measured by spectrophotometry. African men had poorer health than Caucasian men, including higher alcohol abuse, elevated BP, abdominal obesity, physical inactivity, and elevated inflammation. Phe (p < .001) and Phe/Tyr ratio (p = .006) as well as CIMT (p = .032) were higher in African men. DefS African men had higher levels of Phe (p = .002) and Phe/Tyr (p = .009) compared to DefS Caucasian men; these differences were not observed in non-DefS men. Systolic BP and inflammation (C-reactive protein) were positively associated with left (L-) CSWA, while Phe/Tyr was negatively associated with L-CSWA in DefS African men. African males presented with elevated Phe and Phe/Tyr ratio, catecholamine precursors, worsening during DefS-possibly driven by inflammation and BP contributing to structural vascular abnormalities.
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Affiliation(s)
- Marisa Möller
- Department of Pharmacology, North-West University, Potchefstroom, South Africa
| | - Leoné Malan
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Martin Magnusson
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden.,Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Carina M C Mels
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Nico T Malan
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
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Serum metabolomics analysis of patients with chikungunya and dengue mono/co-infections reveals distinct metabolite signatures in the three disease conditions. Sci Rep 2016; 6:36833. [PMID: 27845374 PMCID: PMC5109290 DOI: 10.1038/srep36833] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/17/2016] [Indexed: 12/23/2022] Open
Abstract
Chikungunya and dengue are arboviral infections with overlapping clinical symptoms. A subset of chikungunya infection occurs also as co-infections with dengue, resulting in complications during diagnosis and patient management. The present study was undertaken to identify the global metabolome of patient sera infected with chikungunya as mono infections and with dengue as co-infections. Using nuclear magnetic resonance (NMR) spectroscopy, the metabolome of sera of three disease conditions, namely, chikungunya and dengue as mono-infections and when co-infected were ascertained and compared with healthy individuals. Further, the cohorts were analyzed on the basis of age, onset of fever and joint involvement. Here we show that many metabolites in the serum are significantly differentially regulated during chikungunya mono-infection as well as during chikungunya co-infection with dengue. We observed that glycine, serine, threonine, galactose and pyrimidine metabolisms are the most perturbed pathways in both mono and co-infection conditions. The affected pathways in our study correlate well with the clinical manifestation like fever, inflammation, energy deprivation and joint pain during the infections. These results may serve as a starting point for validations and identification of distinct biomolecules that could be exploited as biomarker candidates thereby helping in better patient management.
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Recovery of pan-genotypic and genotype-specific amino acid alterations in chronic hepatitis C after viral clearance: transition at the crossroad of metabolism and immunity. Amino Acids 2016; 49:291-302. [PMID: 27830380 DOI: 10.1007/s00726-016-2360-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/02/2016] [Indexed: 12/11/2022]
Abstract
Recovery of amino acid (AA) metabolism and the associated clinical implications in chronic hepatitis C (CHC) patients with sustained virological response (SVR) following anti-hepatitis C virus (HCV) therapy remains elusive. A prospective cohort study was conducted on 222 CHC patients with SVR. Eighty-two age-matched male genotype 1 (G1) and G2 patients underwent paired serum metabolomics analyses with liquid chromatography-tandem mass spectrometry to examine AAs before and 24 weeks after anti-HCV therapy. Before anti-HCV therapy, G1 patients had a higher HCV RNA level than G2 patients. Twenty-four weeks post-therapy versus pre-therapy, repeated-measures ANOVA showed that the levels of alanine aminotransferase and most AAs decreased while those of lipids, glutamine and putrescine increased in CHC patients. The methionine sulfoxide/methionine ratio decreased, while the asymmetric dimethylarginine/arginine, glutamine/glutamate, citrulline/arginine, ornithine/arginine, kynurenine/tryptophan, tyrosine/phenylalanine and Fisher's ratios increased. Genotype-specific subgroup analyses showed that valine and serotonin/tyrosine increased in G1 and that kynurenine and tyrosine/phenylalanine increased and sarcosine decreased in G2 patients. Viral clearance in CHC patients pan-genotypically restored fuel utilization by decelerating the tricarboxylic acid cycle. Following improvement in liver function, the urea, nitric oxide, methionine, and polyamine cycles were accelerated. The cardiometabolic risk attenuated, but the augmented kynurenine pathway activity could increase the oncogenesis risk. The trends in neurotransmitter formation differed between G1 and G2 patients after SVR. Moreover, the HCV-suppressing effect of valine was evident in G1 patients; with the exception of prostate cancer, the oncogenesis risk increased, particularly in G2 patients, at least within 24 weeks post-anti-HCV therapy.
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Unni SNC, Lakshman LR, Vaidyanathan K, Subhakumari KN, Menon NL. Alterations in the levels of plasma amino acids in polycystic ovary syndrome--A pilot study. Indian J Med Res 2016; 142:549-54. [PMID: 26658589 PMCID: PMC4743341 DOI: 10.4103/0971-5916.171281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background & objectives: Plasma amino acid levels are known to be altered in conditions like sepsis and burns which are situations of metabolic stress. Polycystic ovary syndrome (PCOS), a condition which affects a woman throughout her life, is said to be associated with metabolic stress. This study was undertaken to assess if there were significant alterations in the levels of plasma amino acids in women with PCOS. Methods: Sixty five women with PCOS along with the similar number of age matched normal controls were included in this study. Levels of 14 amino acids were determined using reverse phase high performance liquid chromatography. Results: The levels of methionine, cystine, isoleucine, phenylalanine, valine, tyrosine, proline, glycine, lysine and histidine were found to be significantly (P<0.001) lower in cases than in controls. Arginine and alanine levels were found to be significantly (P<0.001) higher in cases compared with controls. Interpretation & conclusions: Our findings showed significant derangement in the levels of plasma amino acids in women with PCOS which might be due to the oxidative and metabolic stress associated with it. Further studies need to be done to confirm the findings.
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Affiliation(s)
| | | | | | | | - N Leela Menon
- Department of Biochemistry, Amrita Institute of Medical Sciences & Research Centre, Kochi, India
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Mathai AJ, Lowry CA, Cook TB, Brenner LA, Brundin L, Groer MW, Peng X, Giegling I, Hartmann AM, Konte B, Friedl M, Fuchs D, Rujescu D, Postolache TT. Reciprocal moderation by Toxoplasma gondii seropositivity and blood phenylalanine - tyrosine ratio of their associations with trait aggression. Pteridines 2016; 27:77-85. [PMID: 28943719 DOI: 10.1515/pterid-2016-0006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
We previously reported that trait aggression, proposed as an endophenotype for suicidal behavior, is positively associated with Toxoplasma gondii (T. gondii) seropositivity in females, but not in males. Additionally, older males seropositive for T. gondii had lower scores on measures of trait aggression, including self-aggression. Trait aggression may be influenced by dopaminergic signaling, which is known to be moderated by gender and age, and potentially enhanced in T. gondii positives through the intrinsic production of dopamine by the microorganism. Therefore, we investigated associations between trait aggression and interactions between T. gondii enzyme-linked immunoabsorbant assay (ELISA) IgG titer-determined seropositivity and high-performance liquid chromatography- (HPLC-) measured blood levels of dopamine precursors phenylalanine (Phe), tyrosine (Tyr), and their ratio in a sample of 1000 psychiatrically healthy participants. Aggressive traits were assessed using the questionnaire for measuring factors of aggression (FAF), the German version of the Buss-Durkee hostility questionnaire. We found that 1) the decrease in trait aggression scores in T. gondii-positive older males was only present in individuals with a low Phe:Tyr ratio, and 2) that there was a positive correlation between Phe:Tyr ratio and total aggression and selected subscales of aggression in T. gondii-positive males, but not in T. gondii-negative males. These findings point toward a gender-specific reciprocal moderation by Phe:Tyr ratio and T. gondii seropositivity of their associations with aggression scores, and lead to experimental interventions geared to manipulating levels of dopamine precursors in selected T. gondii positive individuals with increased propensity for aggression.
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Affiliation(s)
- Ashwin Jacob Mathai
- Mood and Anxiety Program, University of Maryland School of Medicine, 685 West Baltimore Street, MSTF Building, Baltimore, MD 21201, USA; and Saint Elizabeths Hospital-DBH Psychiatry Residency Training Program, Washington DC, USA
| | - Christopher A Lowry
- Department of Integrative Physiology and Center for Neuroscience, University of Colorado Boulder, Boulder, CO, USA; Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Denver, CO, USA; Military and Veteran Microbiome Consortium for Research and Education (MVM-CoRE), Denver, CO, USA; and University of Colorado, Anschutz Medical Campus, Department of Physical Medicine and Rehabilitation, and Center for Neuroscience, Aurora, CO, USA
| | - Thomas B Cook
- Department of Public Health and Mercyhurst Institute for Public Health, Mercyhurst University, Erie, PA, USA
| | - Lisa A Brenner
- Military and Veteran Microbiome Consortium for Research and Education (MVM-CoRE), Denver, CO, USA; Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Denver, CO, USA; and University of Colorado, Anschutz Medical Campus, Departments of Psychiatry, Physical Medicine and Rehabilitation, and Neurology, Aurora, CO, USA
| | - Lena Brundin
- Van Andel Research Institute, Grand Rapids, MI, USA
| | | | - Xiaoqing Peng
- Mood and Anxiety Program, University of Maryland School of Medicine, 685 West Baltimore Street, MSTF Building, Baltimore, MD 21201, USA; and Saint Elizabeths Hospital-DBH Psychiatry Residency Training Program, Washington DC, USA
| | - Ina Giegling
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Annette M Hartmann
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Bettina Konte
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Marion Friedl
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | - Dan Rujescu
- Department of Psychiatry, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Teodor T Postolache
- Mood and Anxiety Program, University of Maryland School of Medicine, 685 West Baltimore Street, MSTF Building, Baltimore, MD 21201, USA; Military and Veteran Microbiome Consortium for Research and Education (MVM-CoRE), Denver, CO, USA; Rocky Mountain Mental Illness Research Education and Clinical Center (MIRECC), Denver, CO, USA; and VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center (MIRECC), Baltimore, MD, USA
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Rapid quantitative method for the detection of phenylalanine and tyrosine in human plasma using pillar array columns and gradient elution. Amino Acids 2016; 48:1731-5. [DOI: 10.1007/s00726-016-2248-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 04/29/2016] [Indexed: 11/25/2022]
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Mapping inflammation onto mood: Inflammatory mediators of anhedonia. Neurosci Biobehav Rev 2016; 64:148-66. [PMID: 26915929 DOI: 10.1016/j.neubiorev.2016.02.017] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/30/2015] [Accepted: 02/18/2016] [Indexed: 12/20/2022]
Abstract
Evidence supports inflammatory involvement in mood and cognitive symptoms across psychiatric, neurological and medical disorders; however, inflammation is not a sensitive or specific characteristic of these diagnoses. The National Institute of Mental Health Research Domain Criteria (RDoC) ask for a shift away from symptom-based diagnoses toward a transdiagnostic neurobiological focus in the study of brain illnesses. The RDoC matrix may provide a useful framework for integrating the effects of inflammation on brain function. Based on preclinical and clinical findings, relevant relationships span negative and positive valence systems, cognitive systems, systems for social processes and arousal/regulatory systems. As an exemplar, we consider the psychopathological domain of anhedonia, conceptualizing the relevance of inflammation (e.g., cellular immunity) and downstream processes (e.g., indoleamine 2,3-dioxygenase activation and oxidative inactivation of tetrahydrobiopterin) across RDoC units of analysis (e.g., catecholamine neurotransmitter molecules, nucleus accumbens medium spiny neuronal cells, dopaminergic mesolimbic and mesocortical reward circuits, animal paradigms, etc.). We discuss implications across illnesses affecting the brain, including infection, major depressive disorder, stroke, Alzheimer's disease and type 2 diabetes.
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Strasser B, Sperner-Unterweger B, Fuchs D, Gostner JM. Mechanisms of Inflammation-Associated Depression: Immune Influences on Tryptophan and Phenylalanine Metabolisms. Curr Top Behav Neurosci 2016; 31:95-115. [PMID: 27278641 DOI: 10.1007/7854_2016_23] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Metabolic parameters have a direct role in the regulation of immune cell function. Thereby the inflammation-induced metabolism of aromatic amino acids, most importantly of tryptophan and phenylalanine, plays a central role. In addition, neuropsychiatric conditions that go along with disorders that are characterized by acute or chronic inflammation, such as the development of depression, decreased quality of life or cognitive impairments, are connected to disturbed amino acid and subsequent neurotransmitter metabolism.The bioanalytical procedures for the determination of concentrations of tryptophan and phenylalanine and their respective first stable intermediates kynurenine and tyrosine as well as some analytical finesses and potential sources of errors are discussed in this chapter. Monitoring of these immunometabolic parameters throughout therapies in addition to biomarkers of immune response and inflammation such as neopterin can be useful to determine disease progression but also to plan psychiatric interventions timely, thus to establish personalized treatments.
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Affiliation(s)
- Barbara Strasser
- Division of Medical Biochemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
| | | | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Innsbruck Medical University, Innrain 80, Innsbruck, Austria.
| | - Johanna M Gostner
- Division of Medical Biochemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria
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Altered Monoamine and Acylcarnitine Metabolites in HIV-Positive and HIV-Negative Subjects With Depression. J Acquir Immune Defic Syndr 2015; 69:18-28. [PMID: 25942456 DOI: 10.1097/qai.0000000000000551] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Depression is a frequent comorbidity in HIV infection that has been associated with worse treatment outcomes and increased mortality. Recent studies suggest that increased innate immune activation and tryptophan catabolism are associated with higher risk of depression in HIV infection and other chronic inflammatory diseases, but the mechanisms leading to depression remain poorly understood. METHODS The severity of depressive symptoms was assessed by Beck Depression Inventory or Center for Epidemiological Studies Depression Scale. Untargeted metabolomic profiling of plasma from 104 subjects (68 HIV-positive and 36 HIV-negative) across 3 independent cohorts was performed using liquid or gas chromatography followed by mass spectrometry. Cytokine profiling was by Bioplex array. Bioinformatic analysis was performed in Metaboanalyst and R. RESULTS Decreased monoamine metabolites (phenylacetate, 4-hydroxyphenylacetate) and acylcarnitines (propionylcarnitine, isobutyrylcarnitine, isovalerylcarnitine, 2-methylbutyrylcarnitine) in plasma distinguished depressed subjects from controls in HIV-positive and HIV-negative cohorts, and these alterations correlated with the severity of depressive symptoms. In HIV-positive subjects, acylcarnitines and other markers of mitochondrial function correlated inversely with tryptophan catabolism, a marker of interferon responses, suggesting interrelationships between inflammatory pathways, tryptophan catabolism, and metabolic alterations associated with depression. Altered metabolites mapped to pathways involved in monoamine metabolism, mitochondrial function, and inflammation, suggesting a model in which complex relationships between monoamine metabolism and mitochondrial bioenergetics contribute to biological mechanisms involved in depression that may be augmented by inflammation during HIV infection. CONCLUSIONS Integrated approaches targeting inflammation, monoamine metabolism, and mitochondrial pathways may be important for prevention and treatment of depression in people with and without HIV.
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Gostner JM, Becker K, Kurz K, Fuchs D. Disturbed Amino Acid Metabolism in HIV: Association with Neuropsychiatric Symptoms. Front Psychiatry 2015; 6:97. [PMID: 26236243 PMCID: PMC4500866 DOI: 10.3389/fpsyt.2015.00097] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 06/17/2015] [Indexed: 12/31/2022] Open
Abstract
Blood levels of the amino acid phenylalanine, as well as of the tryptophan breakdown product kynurenine, are found to be elevated in human immunodeficiency virus type 1 (HIV-1)-infected patients. Both essential amino acids, tryptophan and phenylalanine, are important precursor molecules for neurotransmitter biosynthesis. Thus, dysregulated amino acid metabolism may be related to disease-associated neuropsychiatric symptoms, such as development of depression, fatigue, and cognitive impairment. Increased phenylalanine/tyrosine and kynurenine/tryptophan ratios are associated with immune activation in patients with HIV-1 infection and decrease upon effective antiretroviral therapy. Recent large-scale metabolic studies have confirmed the crucial involvement of tryptophan and phenylalanine metabolism in HIV-associated disease. Herein, we summarize the current status of the role of tryptophan and phenylalanine metabolism in HIV disease and discuss how inflammatory stress-associated dysregulation of amino acid metabolism may be part of the pathophysiology of common HIV-associated neuropsychiatric conditions.
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Affiliation(s)
- Johanna M Gostner
- Division of Medical Biochemistry, Biocenter, Medical University of Innsbruck , Innsbruck , Austria
| | - Kathrin Becker
- Division of Biological Chemistry, Biocenter, Medical University of Innsbruck , Innsbruck , Austria
| | - Katharina Kurz
- Department of Internal Medicine VI, Medical University of Innsbruck , Innsbruck , Austria
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter, Medical University of Innsbruck , Innsbruck , Austria
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Immune activation and inflammation in patients with cardiovascular disease are associated with higher phenylalanine to tyrosine ratios: the ludwigshafen risk and cardiovascular health study. JOURNAL OF AMINO ACIDS 2014; 2014:783730. [PMID: 24660059 PMCID: PMC3934657 DOI: 10.1155/2014/783730] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 12/30/2013] [Indexed: 11/17/2022]
Abstract
Higher serum neopterin is associated with increased mortality in patients with coronary artery disease (CAD). Preferentially Th1-type cytokine interferon-γ stimulates neopterin production by GTP cychlohydrolase I (GCH-I) in parallel in monocyte-derived macrophages and dendritic cells. In other cells, activation of GCH-I leads to the formation of 5,6,7,8-tetrahydrobiopterin (BH4), the necessary cofactor of amino acid hydroxylases like phenylalanine 4-hydroxylase (PAH). Serum concentrations of phenylalanine, tyrosine, neopterin, and high sensitivity C-reactive protein (hsCRP) were measured in 1196 patients derived from the LUdwigshafen RIsk and Cardiovascular Health (LURIC) study, a cohort study among patients referred for coronary angiography. The phenylalanine to tyrosine ratio (Phe/Tyr) served as an estimate of phenylalanine hydroxylase (PAH) enzyme activity. Serum concentrations of phenylalanine and tyrosine and of Phe/Tyr did not differ between individuals with or without CAD (Welch's t-test: P = n.s.). Higher neopterin and hsCRP concentrations were observed in CAD patients compared to controls (P < 0.0001) and they correlated with Phe/Tyr (Spearman's rank correlation for neopterin: rs = 0.216 and hsCRP: rs = 0.122; both of P < 0.0001) concentrations. In conclusion, immune activation is associated with higher Phe/Tyr in CAD patients. Data indicates subnormal PAH activity which might be involved in the precipitation of neuropsychiatric symptoms in patients.
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Okusaga O, Muravitskaja O, Fuchs D, Ashraf A, Hinman S, Giegling I, Hartmann AM, Konte B, Friedl M, Schiffman J, Hong E, Reeves G, Groer M, Dantzer R, Rujescu D, Postolache TT. Elevated levels of plasma phenylalanine in schizophrenia: a guanosine triphosphate cyclohydrolase-1 metabolic pathway abnormality? PLoS One 2014; 9:e85945. [PMID: 24465804 PMCID: PMC3897774 DOI: 10.1371/journal.pone.0085945] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 12/04/2013] [Indexed: 02/07/2023] Open
Abstract
Background Phenylalanine and tyrosine are precursor amino acids required for the synthesis of dopamine, the main neurotransmitter implicated in the neurobiology of schizophrenia. Inflammation, increasingly implicated in schizophrenia, can impair the function of the enzyme Phenylalanine hydroxylase (PAH; which catalyzes the conversion of phenylalanine to tyrosine) and thus lead to elevated phenylalanine levels and reduced tyrosine levels. This study aimed to compare phenylalanine, tyrosine, and their ratio (a proxy for PAH function) in a relatively large sample of schizophrenia patients and healthy controls. Methods We measured non-fasting plasma phenylalanine and tyrosine in 950 schizophrenia patients and 1000 healthy controls. We carried out multivariate analyses to compare log transformed phenylalanine, tyrosine, and phenylalanine:tyrosine ratio between patients and controls. Results Compared to controls, schizophrenia patients had higher phenylalanine (p<0.0001) and phenylalanine: tyrosine ratio (p<0.0001) but tyrosine did not differ between the two groups (p = 0.596). Conclusions Elevated phenylalanine and phenylalanine:tyrosine ratio in the blood of schizophrenia patients have to be replicated in longitudinal studies. The results may relate to an abnormal PAH function in schizophrenia that could become a target for novel preventative and interventional approaches.
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Affiliation(s)
- Olaoluwa Okusaga
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - Olesja Muravitskaja
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Dietmar Fuchs
- Division of Biological Chemistry, Biocenter Innsbruck Medical University, Innsbruck, Austria
| | - Ayesha Ashraf
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Sarah Hinman
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Ina Giegling
- Section of Molecular and Clinical Neurobiology, Ludwig Maximilians University, Munich, Germany
| | - Annette M. Hartmann
- Section of Molecular and Clinical Neurobiology, Ludwig Maximilians University, Munich, Germany
| | - Bettina Konte
- Section of Molecular and Clinical Neurobiology, Ludwig Maximilians University, Munich, Germany
| | - Marion Friedl
- Section of Molecular and Clinical Neurobiology, Ludwig Maximilians University, Munich, Germany
| | - Jason Schiffman
- Department of Psychology, University of Maryland, Baltimore, Maryland, United States of America
| | - Elliot Hong
- Maryland Psychiatric Research Center (MPRC), Department of Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Gloria Reeves
- Division of Child and Adolescent Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- University of Maryland Child and Adolescent Mental Health Innovations Center, Baltimore, Maryland, United States of America
| | - Maureen Groer
- University of South Florida, Tampa, Florida, United States of America
| | - Robert Dantzer
- The University of Texas, MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Dan Rujescu
- Section of Molecular and Clinical Neurobiology, Ludwig Maximilians University, Munich, Germany
- Department of Psychiatry, University of Halle-Wittenberg, Halle, Germany
| | - Teodor T. Postolache
- Mood and Anxiety Program, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- University of Maryland Child and Adolescent Mental Health Innovations Center, Baltimore, Maryland, United States of America
- VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center (MIRECC), Baltimore, Maryland, United States of America
- VISN 19 MIRECC, Denver, Colorado, United States of America
- * E-mail:
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Immune changes and neurotransmitters: possible interactions in depression? Prog Neuropsychopharmacol Biol Psychiatry 2014; 48:268-76. [PMID: 23085509 DOI: 10.1016/j.pnpbp.2012.10.006] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 09/28/2012] [Accepted: 10/01/2012] [Indexed: 01/06/2023]
Abstract
A disturbed metabolism of catecholamines and other neurotransmitters appears to play a major role in the pathogenesis of neurospychiatric symptoms, such as changes in mood and depression. This symptomatology is common in patients with chronic inflammatory disorders such as infections, autoimmune diseases, or cancer. The pathogenesis of these symptoms is still unclear. Pro-inflammatory stimuli interfere not only with the neural circuits and neurotransmitters of the serotonergic system but also with those of the adrenergic system. The pro-inflammatory cytokine interferon-γ stimulates the biosynthesis of 5,6,7,8-tetrahydrobiopterin (BH4), which is a co-factor for several aromatic amino acid mono-oxygenases and is rate-limiting for the biosynthesis of the neurotransmitter serotonin and the catecholamines dopamine, epinephrine (adrenaline) and norepinephrine (noradrenaline). Interferon-γ triggers the high output of reactive oxygen species in macrophages, which can destroy the oxidation-labile BH4. Recent data suggests that oxidative loss of BH4 in chronic inflammatory conditions can reduce the biosynthesis of catecholamines, which may relate to disturbed adrenergic neurotransmitter pathways in patients.
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Felger JC, Li L, Marvar PJ, Woolwine BJ, Harrison DG, Raison CL, Miller AH. Tyrosine metabolism during interferon-alpha administration: association with fatigue and CSF dopamine concentrations. Brain Behav Immun 2013; 31:153-60. [PMID: 23072726 PMCID: PMC3578984 DOI: 10.1016/j.bbi.2012.10.010] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 10/04/2012] [Accepted: 10/08/2012] [Indexed: 10/27/2022] Open
Abstract
Chronic exposure to interferon (IFN)-alpha, an innate immune cytokine, produces high rates of behavioral disturbances, including depression and fatigue. These effects may be mediated by the actions of IFN-alpha on dopamine (DA) metabolism in the basal ganglia. Diminished conversion of phenylalanine (Phen) to tyrosine (Tyr), the primary amino acid precursor of DA, has been associated with inflammation, and may reflect decreased activity of the enzyme phenylalanine-hydroxylase (PAH). This study investigated the peripheral Phen/Tyr ratio in relation to cerebrospinal fluid (CSF) concentrations of DA and its metabolites in subjects treated with IFN-alpha plus ribavirin for hepatitis C and controls awaiting IFN-alpha therapy. Plasma Phen/Tyr ratios were significantly increased in IFN-alpha-treated subjects (n=25) compared to controls (n=9), and were negatively correlated with CSF DA (r=-0.59, df=15, p<0.05) and its metabolite, homovanillic acid (r=-0.67, df=15, p<0.01), and positively correlated with fatigue (r=0.44, df=23, p<.05) in IFN-alpha-treated patients but not controls. Given the role of tetrahydrobiopterin (BH4) in the PAH conversion of Phen to Tyr, CSF concentrations of BH4 and its inactive oxidized form, dihydrobiopterin (BH2), were examined along with CSF interleukin (IL)-6 in a subset of patients. BH2 concentrations were significantly increased in IFN-alpha-treated patients (n=12) compared to controls (n=7), and decreased CSF BH4 concentrations correlated with increased CSF IL-6 (r=-0.57, df=12, p<0.05). These results indicate that IFN-alpha is associated with decreased peripheral conversion of Phen to Tyr, which in turn is associated with reduced DA in the brain as well as fatigue. These alterations may be related to oxidation of BH4 secondary to IFN-alpha-induced activation of a CNS inflammatory response.
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Affiliation(s)
- Jennifer C Felger
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA 30322, USA.
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Schönig S, Recke A, Hirose M, Ludwig RJ, Seeger K. Metabolite analysis distinguishes between mice with epidermolysis bullosa acquisita and healthy mice. Orphanet J Rare Dis 2013; 8:93. [PMID: 23800341 PMCID: PMC3703300 DOI: 10.1186/1750-1172-8-93] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 06/23/2013] [Indexed: 01/09/2023] Open
Abstract
Background Epidermolysis bullosa acquisita (EBA) is a rare skin blistering disease with a prevalence of 0.2/ million people. EBA is characterized by autoantibodies against type VII collagen. Type VII collagen builds anchoring fibrils that are essential for the dermal-epidermal junction. The pathogenic relevance of antibodies against type VII collagen subdomains has been demonstrated both in vitro and in vivo. Despite the multitude of clinical and immunological data, no information on metabolic changes exists. Methods We used an animal model of EBA to obtain insights into metabolomic changes during EBA. Sera from mice with immunization-induced EBA and control mice were obtained and metabolites were isolated by filtration. Proton nuclear magnetic resonance (NMR) spectra were recorded and analyzed by principal component analysis (PCA), partial least squares discrimination analysis (PLS-DA) and random forest. Results The metabolic pattern of immunized mice and control mice could be clearly distinguished with PCA and PLS-DA. Metabolites that contribute to the discrimination could be identified via random forest. The observed changes in the metabolic pattern of EBA sera, i.e. increased levels of amino acid, point toward an increased energy demand in EBA. Conclusions Knowledge about metabolic changes due to EBA could help in future to assess the disease status during treatment. Confirming the metabolic changes in patients needs probably large cohorts.
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Affiliation(s)
- Sarah Schönig
- Excellence Cluster Inflammation at Interfaces, Schleswig-Holstein, Germany
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