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Wang HB, Xiao X, Dai W, Cui Y, Li WM, Peng R, Hu L, Wang ST. Dispel some mist on circulating biopterins: measurement, physiological interval and pathophysiological implication. Metabolomics 2024; 20:74. [PMID: 38980520 DOI: 10.1007/s11306-024-02137-8] [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: 01/22/2024] [Accepted: 06/04/2024] [Indexed: 07/10/2024]
Abstract
BACKGROUND AND AIMS Biopterins, including tetrahydrobiopterin (BH4), dihydrobiopterin (BH2), and biopterin (B), were crucial enzyme cofactors in vivo. Despite their recognized clinical significance, there remain notable research gaps and controversies surrounding experimental outcomes. This study aims to clarify the biopterins-related issues, including analytical art, physiological intervals, and pathophysiological implications. MATERIALS AND METHODS A novel LC-MS/MS method was developed to comprehensively profile biopterins in plasma, utilizing chemical derivatization and cold-induced phase separation. Subsequently, apparently healthy individuals were enrolled to investigate the physiological ranges. And the relationships between biopterins and biochemical indicators were analyzed to explore the pathophysiological implications. RESULTS The developed method was validated as reliable for detecting biopterins across the entire physiological range. Timely anti-oxidation was found to be essential for accurate assessment of biopterins. The observed overall mean ± SDs levels were 3.51 ± 0.94, 1.54 ± 0.48, 2.45 ± 0.84 and 5.05 ± 1.14 ng/mL for BH4, BH2, BH4/BH2 and total biopterins. The status of biopterins showed interesting correlations with age, gender, hyperuricemia and overweight. CONCLUSION In conjunction with proper anti-oxidation, the newly developed method enables accurate determination of biopterins status in plasma. The observed physiological intervals and pathophysiological implications provide fundamental yet inspiring support for further clinical researches.
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Affiliation(s)
- Hai-Bo Wang
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xuan Xiao
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Wen Dai
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yan Cui
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Wan-Man Li
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Medical Laboratory, Liuzhou Municipal Liutie Central Hospital, Liuzhou, 545000, China
| | - Rui Peng
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Liu Hu
- Physical Examination Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Shao-Ting Wang
- Department of Clinical Laboratory, Institute of Translational Medicine, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Zhilyaeva TV, Kasyanov ED, Rukavishnikov GV, Piatoikina AS, Bavrina AP, Kostina OV, Zhukova ES, Shcherbatyuk TG, Mazo GE. Pterin metabolism, inflammation and oxidative stress biochemical markers in schizophrenia: Factor analysis and assessment of clinical symptoms associations. Prog Neuropsychopharmacol Biol Psychiatry 2023; 127:110823. [PMID: 37437837 DOI: 10.1016/j.pnpbp.2023.110823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/14/2023]
Abstract
Various aspects of folate and tetrahydrobiopterin (BH4) metabolism disturbances have been detected in patients with schizophrenia.Data were obtained that disturbances in the pterins (folates and BH4) metabolism can be associated with oxidative stress and inflammation, but has not yet been confirmed in clinical studies in schizophrenia. Within the framework of this study, a correlation and factor analysis of biochemical markersof pterin metabolism, inflammation and redox imbalance in patients with schizophrenia was performed in order to test the hypothesis of the single etiopathogenetic node, including the studied biochemical processes. Methods: 125 patients with schizophrenia and 95 healthy volunteers were randomly selected and evaluated with a biochemical examination of BH4, folate, B12, homocysteine, C-reactive protein, interleukin-6, reduced glutathione levels in the blood serum; activity of superoxide dismutase and catalase - in erythrocytes; malondialdehyde - in blood plasma. All patients underwent an examination using standardized psychopathology rating scales. Spearman rank coefficient (ρ) with Benjamini-Hochberg correction was used for the correlation analysis. The principal components analysis (PCA) was used as a factor analysis. Results: Significant correlations were found within groups of pterin metabolism, inflammatory markers and redox-imbalance, and also between separate inflammation, oxidative stress and markers of pterin metabolism. The performed factor analysis made it possible to distinguish two components: 1 - pterin metabolism, 2 - oxidativeinflammatory markers. Despite the weak statistical associations and, possibly, functional relationships between pterin metabolism and oxidative/inflammation markers, each of the components has its own clinical correlates and, probably, a separate contribution to the pathology of schizophrenia.
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Affiliation(s)
- T V Zhilyaeva
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia; V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia.
| | - E D Kasyanov
- V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
| | - G V Rukavishnikov
- V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
| | - A S Piatoikina
- Nizhny Novgorod Clinical Psychiatric, Hospital No. 1, Nizhny Novgorod, Russia
| | - A P Bavrina
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - O V Kostina
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - E S Zhukova
- Nizhny Novgorod Research Institute for Hygiene and Occupational Pathology, Nizhny Novgorod, Russia
| | - T G Shcherbatyuk
- Nizhny Novgorod Research Institute for Hygiene and Occupational Pathology, Nizhny Novgorod, Russia; Pushchino State Institute of Natural Science, Pushchino, Russia
| | - G E Mazo
- V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
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Cavaleri D, Bartoli F, Capogrosso CA, Guzzi P, Moretti F, Riboldi I, Misiak B, Kishi T, Rubin RT, Fuchs D, Crocamo C, Carrà G. Blood concentrations of neopterin and biopterin in subjects with depression: A systematic review and meta-analysis. Prog Neuropsychopharmacol Biol Psychiatry 2023; 120:110633. [PMID: 36089162 DOI: 10.1016/j.pnpbp.2022.110633] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 10/14/2022]
Abstract
INTRODUCTION Pteridines, such as neopterin, biopterin, and tetrahydrobiopterin (BH4), may be involved in depression pathophysiology owing to their links to immune-inflammatory response, oxidative and nitrosative stress, and monoaminergic transmission. Nonetheless, studies assessing pteridines in depression are inconsistent. We conducted a systematic review and meta-analysis of observational studies comparing blood pteridine concentrations between subjects with depression and healthy controls (HCs). METHODS We searched Embase, MEDLINE, and PsycInfo for articles indexed through November 2021. Study quality was appraised, evaluating age and gender comparability between groups, sample representativeness, and methods to assess depression. Random-effects meta-analyses were carried out, generating pooled standardized mean differences (SMDs). Heterogeneity across studies was estimated using the I2 statistic. RESULTS Twenty-four studies, involving 3075 subjects, were included. Individuals with depression showed blood neopterin concentrations higher than HCs (k = 19; SMD = 0.36; p < 0.001) with moderate heterogeneity across studies (I2 = 58.2%). No moderating role of age, gender, or type of blood sample was found. Sensitivity analyses showed no impact of inconsistency and quality of studies on findings. Neopterin concentrations were higher among individuals with major depressive disorder compared to HCs (SMD = 0.44; p < 0.001). This held true also when considering only drug-free subjects (SMD = 0.68; p = 0.003). No differences in biopterin concentrations were found between subjects with depression and HCs (k = 5; SMD = -0.35; p = 0.086), though this result was limited by inconsistency of findings (I2 = 77.9%) and quality of studies. Finally, no sufficient data were available for a meta-analysis on BH4. CONCLUSIONS As a whole, our work partly supports the hypothesis of an imbalance of pteridine metabolism in depression.
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Affiliation(s)
- Daniele Cavaleri
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Francesco Bartoli
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy.
| | - Chiara A Capogrosso
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Pierluca Guzzi
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Federico Moretti
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Ilaria Riboldi
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Błażej Misiak
- Department of Psychiatry, Division of Consultation Psychiatry and Neuroscience, Wroclaw Medical University, Pasteura 10 Street, 50-367 Wroclaw, Poland
| | - Taro Kishi
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Robert T Rubin
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States; Community Memorial Health System, Ventura County Medical Center, 147 N Brent St, Ventura, CA 93003, United States
| | - Dietmar Fuchs
- Institute of Biological Chemistry, Biocentre, Medical University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Cristina Crocamo
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Giuseppe Carrà
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy; Division of Psychiatry, University College London, Maple House 149, London W1T 7BN, United Kingdom
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Zhilyaeva TV, Kasyanov ED, Semennov IV, Rukavishnikov GV, Piatoikina AS, Kostina OV, Verbitskaya EV, Mazo GE. Tetrahydrobiopterin deficiency in schizophrenia: Biochemical and clinical aspects. J Psychiatr Res 2022; 153:141-148. [PMID: 35816973 DOI: 10.1016/j.jpsychires.2022.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/26/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
UNLABELLED It was reported that the levels of tetrahydrobiopterin (BH4) are reduced in schizophrenia. However, mechanisms of BH4 deficiency in schizophrenia had not been studied precisely. OBJECTIVE the search of the association between BH4 deficiency in schizophrenia and a range of biochemical and clinical parameters for the evaluation of the possible mechanisms of BH4 loss and its role in the development of the symptoms. METHODS 93 patients with schizophrenia and 60 healthy volunteers were randomly selected and evaluated with a biochemical examination of BH4, folate, cobalamin (B12), homocysteine, C-reactive protein (CRP), reduced glutathione (GSH) levels in the blood serum.Patients underwent standardized psychopathological examination. RESULTS In patients, the levels of BH4 and folate were lower (p = 0.001 and p = 0.054, respectively), and the levels of homocysteine were higher (p = 0.012) compared to the control group. BH4 levels directly moderately correlated with folate (ρ = 0.43; p = 0.0029) and B12 levels (ρ = 0.43; p = 0.0020) and inversely moderately correlated with homocysteine levels (ρ = -0.54; p = 0.00015) in patients. Cluster analysis identified schizophrenia biotype characterized by a deficiency of BH4, folate, B12, and hyperhomocysteinemia. The clinical characteristics of this biotype were not specific. CRP and GSH were higher in patients compared to controls, but their association with serum BH4 was not confirmed.
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Affiliation(s)
- T V Zhilyaeva
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia; Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia.
| | - E D Kasyanov
- Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
| | - I V Semennov
- Nizhny Novgorod Clinical Psychiatric Hospital No.1, Nizhny Novgorod, Russia
| | - G V Rukavishnikov
- Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
| | - A S Piatoikina
- Nizhny Novgorod Clinical Psychiatric Hospital No.1, Nizhny Novgorod, Russia
| | - O V Kostina
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - E V Verbitskaya
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - G E Mazo
- Bekhterev National Medical Research Center for Psychiatry and Neurology, St. Petersburg, Russia
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Liu H, Pu J, Zhou Q, Yang L, Bai D. Peripheral blood and urine metabolites and biological functions in post-stroke depression. Metab Brain Dis 2022; 37:1557-1568. [PMID: 35438379 DOI: 10.1007/s11011-022-00984-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 04/10/2022] [Indexed: 12/31/2022]
Abstract
Post-stroke depression (PSD) is the most common and severe neuropsychiatric complication after stroke. However, the molecular mechanism of PSD is still unclear. Previous studies have identified peripheral blood and urine metabolites associated with PSD using metabolomics techniques. We searched and systematically summarized metabolites that may be involved in metabolic changes in peripheral blood and urine of patients with PSD from the Metabolite Network of Depression Database (MENDA) and other biomedical databases. MetaboAnalyst5.0 software was used for pathway analysis and enrichment analysis of differential metabolites, and subgroup analyses were performed according to tissue types and metabolomics techniques. We identified 47 metabolites that were differentially expressed between patients with and without PSD. Five differential metabolites were found in both plasma and urine, including L-glutamic acid, pyroglutamic acid, palmitic acid, L-phenylalanine, and L-tyrosine. We integrated these metabolites into metabolic pathways, and six pathways were significantly altered. These pathways could be roughly divided into three modules including amino acid metabolism, nucleotide metabolism, and glucose metabolism. Among them, the most significantly altered pathway was "phenylalanine metabolism" and the pathway containing the most associated metabolites was "aminoacyl-tRNA biosynthesis", which deserve further study to elucidate their role in the molecular mechanism of PSD. In summary, metabolic changes in peripheral blood and urine are associated with PSD, especially the disruption of "phenylalanine metabolism" and "aminoacyl-tRNA biosynthesis" pathways. This study provides clues to the metabolic characteristics of patients with PSD, which may help to elucidate the molecular pathogenesis of PSD.
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Affiliation(s)
- Haiyan Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Juncai Pu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qinxiang Zhou
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lining Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Dingqun Bai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Midhun T, Krishna SS, Wilson SK. Tetrahydrobiopterin and Its Multiple Roles in Neuropsychological Disorders. Neurochem Res 2022; 47:1202-1211. [PMID: 35142994 DOI: 10.1007/s11064-022-03543-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 10/19/2022]
Abstract
Tetrahydrobiopterin (BH4) is a multifunctional co-factor of various enzymes and a substantial amount of studies have shown BH4 as a key regulator in the synthesis of neurotransmitters such as serotonin, nor-epinephrine as well as dopamine. The imbalance of BH4 may affect neurotransmitter production which can lead to many abnormalities in CNS. This article reviews the role of BH4 in neurodegenerative and neurodevelopmental disorders. We focus on the therapeutic potential of BH4 in various brain diseases that involves neurotransmitters and attempt to address how the modulation of BH4 may provide a novel strategy in various neuropsychological conditions.
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Affiliation(s)
- Midhun T
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi, 682041, Kerala, India
| | - S Swathi Krishna
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi, 682041, Kerala, India
| | - Samson K Wilson
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi, 682041, Kerala, India.
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Xiang J, Zhang J, Zheng R, Li X, Li M. NIDM: network impulsive dynamics on multiplex biological network for disease-gene prediction. Brief Bioinform 2021; 22:6236070. [PMID: 33866352 DOI: 10.1093/bib/bbab080] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/11/2021] [Accepted: 02/21/2021] [Indexed: 12/12/2022] Open
Abstract
The prediction of genes related to diseases is important to the study of the diseases due to high cost and time consumption of biological experiments. Network propagation is a popular strategy for disease-gene prediction. However, existing methods focus on the stable solution of dynamics while ignoring the useful information hidden in the dynamical process, and it is still a challenge to make use of multiple types of physical/functional relationships between proteins/genes to effectively predict disease-related genes. Therefore, we proposed a framework of network impulsive dynamics on multiplex biological network (NIDM) to predict disease-related genes, along with four variants of NIDM models and four kinds of impulsive dynamical signatures (IDSs). NIDM is to identify disease-related genes by mining the dynamical responses of nodes to impulsive signals being exerted at specific nodes. By a series of experimental evaluations in various types of biological networks, we confirmed the advantage of multiplex network and the important roles of functional associations in disease-gene prediction, demonstrated superior performance of NIDM compared with four types of network-based algorithms and then gave the effective recommendations of NIDM models and IDS signatures. To facilitate the prioritization and analysis of (candidate) genes associated to specific diseases, we developed a user-friendly web server, which provides three kinds of filtering patterns for genes, network visualization, enrichment analysis and a wealth of external links (http://bioinformatics.csu.edu.cn/DGP/NID.jsp). NIDM is a protocol for disease-gene prediction integrating different types of biological networks, which may become a very useful computational tool for the study of disease-related genes.
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Affiliation(s)
- Ju Xiang
- School of Computer Science and Engineering, Central South University, Human, China
| | - Jiashuai Zhang
- School of Computer Science and Engineering, Central South University, Human, China
| | - Ruiqing Zheng
- School of Computer Science and Engineering, Central South University, China
| | - Xingyi Li
- School of Computer Science and Engineering, Central South University, Changsha, China
| | - Min Li
- School of Computer Science and Engineering, Central South University, Changsha, China
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Klaus F, Guetter K, Schlegel R, Seifritz E, Rassi A, Thöny B, Cathomas F, Kaiser S. Peripheral biopterin and neopterin in schizophrenia and depression. Psychiatry Res 2021; 297:113745. [PMID: 33524773 DOI: 10.1016/j.psychres.2021.113745] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/19/2021] [Indexed: 01/21/2023]
Abstract
Increasing evidence points to a causal involvement of inflammation in the pathogenesis of neuropsychiatric disorders, including major depressive disorder (MDD) and schizophrenia (SZ). Neopterin and biopterin may link peripheral immune system activation and central neurotransmitter alterations. However, it is not fully established whether these alterations are transdiagnostic or disorder-specific and whether they are associated with reward-related psychopathologies. We investigated group differences in neopterin and biopterin in the plasma of healthy comparison (HC) (n=19), SZ (n=45) and MDD (n=43) participants. We then correlated plasma proteins with CRP as a measure for inflammation. Lastly, plasma proteins were correlated with the reward-related psychopathological domain apathy. We found a trend-level difference in biopterin levels and no significant difference in neopterin levels between groups. Within both patient groups, but not HC, we show a significant positive correlation of CRP with neopterin but not with biopterin. Further, we observed no significant correlations of plasma proteins with reward-related psychopathology in HC, MDD or SZ. While our study shows trend-level alterations of biopterin with relevance for future research, it does not support the hypothesis that peripheral neopterin or biopterin are associated with reward-related psychopathology.
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Affiliation(s)
- Federica Klaus
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland; Department of Psychiatry, University of California San Diego, 9500 Gilman Drive, San Diego, USA.
| | - Karoline Guetter
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Rebecca Schlegel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Anahita Rassi
- Divisions of Metabolism and of Clinical Chemistry and Biochemistry and Children's Research Center, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032 Zurich, Switzerland
| | - Beat Thöny
- Divisions of Metabolism and of Clinical Chemistry and Biochemistry and Children's Research Center, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032 Zurich, Switzerland
| | - Flurin Cathomas
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland; Fishberg Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy P, New York, USA
| | - Stefan Kaiser
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Chemin du Petit-Bel-Air, 1225 Chêne-Bourg, Switzerland
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Nichols BL, Baker RD, Baker SS. Overview of Breath Testing in Clinical Practice in North America. JPGN REPORTS 2021; 2:e027. [PMID: 37206939 PMCID: PMC10191541 DOI: 10.1097/pg9.0000000000000027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 06/29/2020] [Indexed: 05/21/2023]
Abstract
Human breath is an easily, noninvasively obtained substance. It offers insight into metabolism and is used to diagnose disaccharide malabsorption, infection, small bowel bacterial over growth, and transit times. Herein, we discuss the readily available clinical breath tests, how they function, how they are administered and interpreted and some pitfalls in their use.
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Affiliation(s)
- Buford L. Nichols
- From the Children’s Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - Robert D. Baker
- Department of Pediatrics, University at Buffalo, Buffalo, NY
| | - Susan S. Baker
- Department of Pediatrics, University at Buffalo, Buffalo, NY
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Clelland CL, Kantrowitz JT, Choo T, Clelland JD, Lieberman JA. Adjunctive sapropterin dihydrochloride treatment in schizophrenia: A positive proof-of-concept, rater-blind, randomized, multivitamin-controlled study. Schizophr Res 2020; 218:321-323. [PMID: 31973997 DOI: 10.1016/j.schres.2019.12.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Catherine L Clelland
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Medical Center, 630 West 168th Street, New York, NY 10032, USA; Department of Pathology and Cell Biology, Columbia University Medical Center, 630 West 168th Street, New York, NY 10032, USA.
| | - Joshua T Kantrowitz
- Department of Psychiatry, Columbia University Medical Center, 1051 Riverside Drive, New York, NY 10032, USA; New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032, USA; Schizophrenia Research Center, The Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY 10962, USA
| | - Tse Choo
- New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032, USA
| | - James D Clelland
- Clinical Research Department, The Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY 10962, USA
| | - Jeffrey A Lieberman
- Department of Psychiatry, Columbia University Medical Center, 1051 Riverside Drive, New York, NY 10032, USA; New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032, USA
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Clelland JD, Smeed J, Cremers S, Clelland CL. A tetrahydrobiopterin deficit finding in schizophrenia: A confirmation study. Schizophr Res 2019; 210:316-318. [PMID: 31230962 PMCID: PMC7247802 DOI: 10.1016/j.schres.2019.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/15/2019] [Indexed: 11/26/2022]
Affiliation(s)
- James D Clelland
- Clinical Research Department, The Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY, United States of America; Department of Psychiatry, New York University Langone Medical Center (NYU), 550 First Avenue, New York, NY, United States of America
| | - Jennifer Smeed
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Medical Center, 630 West 168th Street, New York, NY, United States of America
| | - Serge Cremers
- Department of Pathology and Cell Biology, Columbia University Medical Center, 630 West 168th Street, New York, NY, United States of America
| | - Catherine L Clelland
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University Medical Center, 630 West 168th Street, New York, NY, United States of America; Department of Pathology and Cell Biology, Columbia University Medical Center, 630 West 168th Street, New York, NY, United States of America.
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