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Liu B, Wang G, Wang L, Yan J, Zhu K, Liu Q, Zhao J, Jia B, Fang M, Rudich Y, Morawska L, Chen J. Unraveling Cross-Organ Impacts of Airborne Pollutants: A Multiomics Study on Respiratory Exposure and Gastrointestinal Health. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:15511-15521. [PMID: 39145585 DOI: 10.1021/acs.est.4c06035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Poor air quality is increasingly linked to gastrointestinal diseases, suggesting a potential correlation with human intestine health. However, this relationship remains largely unexplored due to limited research. This study used a controlled mouse model exposed to cooking oil fumes (COFs) and metagenomics, transcriptomics, and metabolomics to elucidate interactions between intestine microbiota and host metabolism under environmental stress. Our findings reveal that short-term COF inhalation induces pulmonary inflammation within 3 days and leads to gastrointestinal disturbances, elucidating a pathway connecting respiratory exposure to intestinal dysfunction. The exposure intensity significantly correlates with changes in intestinal tissue integrity, microbial composition, and metabolic function. Extended exposure of 7 days disrupts intestine microbiota and alters tryptophan metabolism, with further changes observed after 14 days, highlighting an adaptive response. These results highlight the vulnerability of intestinal health to airborne pollutants and suggest a pathway through which inhaled pollutants may affect distant organ systems.
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Affiliation(s)
- Bailiang Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
- Institute of Eco-Chongming (IEC), Shanghai 202162, China
| | - Ge Wang
- Department of Environmental Hygiene, School of Public Health, Fudan University, Shanghai 200030, China
| | - Lina Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
- Institute of Eco-Chongming (IEC), Shanghai 202162, China
| | - Jiaqian Yan
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Ke Zhu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | | | - Jinzhuo Zhao
- Department of Environmental Hygiene, School of Public Health, Fudan University, Shanghai 200030, China
| | - Boyue Jia
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Mingliang Fang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
| | - Yinon Rudich
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Lidia Morawska
- International Laboratory for Air Quality and Health (ILAQH), School of Earth of Atmospheric Sciences, Queensland University of Technology, Brisbane Queensland 4001, Australia
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
- Institute of Eco-Chongming (IEC), Shanghai 202162, China
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Weber S, Rey Álvarez LT, Ansede-Bermejo J, Cruz R, Del Real Á, Bühler J, Carracedo Á, Aybek S. The impact of genetic variations in the serotonergic system on symptom severity and clinical outcome in functional neurological disorders. J Psychosom Res 2024; 186:111909. [PMID: 39236646 DOI: 10.1016/j.jpsychores.2024.111909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 08/28/2024] [Accepted: 08/28/2024] [Indexed: 09/07/2024]
Abstract
OBJECTIVE We studied gene-environment, as well as gene-gene interaction to elucidate their effects on symptom severity and predict clinical outcomes in functional neurological disorders (FND). METHODS Eighty-five patients with mixed FND were genotyped for ten single-nucleotide polymorphisms (SNP) from seven different stress-related genes. We tested cross-sectionally the association between genotype and the symptomatology of FND (symptom severity assessed with the examiner-based clinical global impression score [CGI] and age of onset). Clinical outcome was assessed in 52 patients who participated in a follow-up clinical visit after eight months (following their individual therapies as usual). We tested longitudinally the association between genotype and clinical outcome in FND. We examined the contribution of each SNP and their interaction between them to FND symptomatology and outcome. RESULTS We identified a nominal association between tryptophan hydroxylase 1 (TPH1) rs1800532 and symptom severity (CGI1) in FND under a codominant model (T/T: ßT/T = 2.31, seT/T = 0.57; G/T: ßG/T = -0.18, seG/T = 0.29, P = 0.035), with minor allele (T) carriers presenting more severe symptoms. An association was identified between TPH1 and clinical outcome, suggesting that major allele (G) carriers were more likely to have an improved outcome under a codominant model (G/T: ORG/T = 0.18, CIG/T = [0.02-1.34]; T/T: ORT/T = 2.08, CIT/T = [0.30-14.53], P = 0.041). Our analyses suggested a significant gene-gene interaction for TPH2 (rs4570625) and OXTR (rs2254298) on symptom severity, and a significant gene-gene interaction for TPH1, TPH2 and BDNF (rs1491850) on clinical outcome. CONCLUSION FND might arise from a complex interplay between individual predisposing risk genes involved in the serotonergic pathway and their gene-gene interactions.
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Affiliation(s)
- Samantha Weber
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; University of Zurich, Psychiatric University Hospital Zurich, Department of Psychiatry, Psychotherapy and Psychosomatics, 8032 Zurich, Switzerland
| | - Lucía Trinidad Rey Álvarez
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Faculty of Science and Medicine, University of Fribourg, 1700 Fribourg, Switzerland
| | - Juan Ansede-Bermejo
- Centro Nacional de Genotipado (CEGEN), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Raquel Cruz
- Centro Nacional de Genotipado (CEGEN), Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain; Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Álvaro Del Real
- Medicine and Psychiatry Department, University of Cantabria, Santander, Spain
| | - Janine Bühler
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
| | - Ángel Carracedo
- Centro Nacional de Genotipado (CEGEN), Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain; Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Fundación Pública Galega de Medicina Xenómica, Sistema Galego de Saúde (SERGAS), Santiago de Compostela, Spain
| | - Selma Aybek
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Faculty of Science and Medicine, University of Fribourg, 1700 Fribourg, Switzerland.
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Yan C, Liu Z. The role of periaqueductal gray astrocytes in anxiety-like behavior induced by acute stress. Biochem Biophys Res Commun 2024; 720:150073. [PMID: 38754161 DOI: 10.1016/j.bbrc.2024.150073] [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: 12/10/2023] [Revised: 04/19/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
Astrocytes in the central nervous system play a vital role in modulating synaptic transmission and neuronal activation by releasing gliotransmitters. The 5-HTergic neurons in the ventrolateral periaqueductal gray (vlPAG) are important in anxiety processing. However, it remains uncertain whether the regulation of astrocytic activity on vlPAG 5-HTergic neurons is involved in anxiety processing. Here, through chemogenetic manipulation, we explored the impact of astrocytic activity in the PAG on the regulation of anxiety. To determine the role of astrocytes in the control of anxiety, we induced anxiety-like behaviors in mice through foot shock and investigated their effects on synaptic transmission and neuronal excitability in vlPAG 5-HTergic neurons. Foot shock caused anxiety-like behaviors, which were accompanied with the increase of the amplitude and frequency of miniature excitatory postsynaptic currents (mEPSCs), the area of slow inward currents (SICs), and the spike frequency of action potentials (AP) in vlPAG 5-HTergic neurons. The chemogenetic inhibition of vlPAG astrocytes was found to attenuate stress-induced anxiety-like behaviors and decrease the heightened synaptic transmission and neuronal excitability of vlPAG 5-HTergic neurons. Conversely, chemogenetic activation of vlPAG astrocytes triggered anxiety-like behaviors, enhanced synaptic transmission, and increased the excitability of vlPAG 5-HTergic neurons in unstressed mice. In summary, this study has provided initial insights into the pathway by which astrocytes influence behavior through the rapid regulation of associated neurons. This offers a new perspective for the investigation of the biological mechanisms underlying anxiety.
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Affiliation(s)
- Chuanting Yan
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, 199 Chang'an South Road, Xi'an, 710062, China; Lingang Laboratory, Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, 555 Qiangye Road, Shanghai, 201210, China
| | - Zhiqiang Liu
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, 199 Chang'an South Road, Xi'an, 710062, China.
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Webster CI, Withycombe JS, Bhutada JS, Bai J. Review of the microbiome and metabolic pathways associated with psychoneurological symptoms in children with cancer. Asia Pac J Oncol Nurs 2024; 11:100535. [PMID: 39104728 PMCID: PMC11298867 DOI: 10.1016/j.apjon.2024.100535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/11/2024] [Indexed: 08/07/2024] Open
Abstract
Children with cancer often endure a range of psychoneurological symptoms (PNS), including pain, fatigue, cognitive impairment, anxiety, depressive symptoms, and sleep disturbance. Despite their prevalence, the underlying pathophysiology of PNS remains unclear. Hypotheses suggest an interplay between the gut microbiome and the functional metabolome, given the immune, neurological, and inflammatory influences these processes exert. This mini-review aims to provide a synopsis of the literature that examines the relationship between microbiome-metabolome pathways and PNS in children with cancer, drawing insights from the adult population when applicable. While there is limited microbiome research in the pediatric population, promising results in adult cancer patients include an association between lower microbial diversity and compositional changes, including decreased abundance of the beneficial microbes Fusicatenibacter, Ruminococcus, and Odoribacter, and more PNS. In pediatric patients, associations between peptide, tryptophan, carnitine shuttle, and gut microbial metabolism pathways and PNS outcomes were found. Utilizing multi-omics methods that combine microbiome and metabolome analyses provide insights into the functional capacity of microbiomes and their associated microbial metabolites. In children with cancer receiving chemotherapy, increased abundances of Intestinibacter and Megasphaera correlated with six metabolic pathways, notably carnitine shuttle and tryptophan metabolism. Interventions that target the underlying microbiome-metabolome pathway may be effective in reducing PNS, including the use of pre- and probiotics, fecal microbiome transplantation, dietary modifications, and increased physical activity. Future multi-omics research is needed to corroborate the associations between the microbiome, metabolome, and PNS outcomes in the pediatric oncology population.
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Affiliation(s)
- Caitlin I. Webster
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
| | | | - Jessica Sheth Bhutada
- Cancer and Blood Disease Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jinbing Bai
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
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Lin GC, Tevini J, Mair L, Friedl HP, Fuchs D, Felder T, Gostner JM, Neuhaus W. Investigations Towards Tryptophan Uptake and Transport Across an In Vitro Model of the Oral Mucosa Epithelium. Int J Tryptophan Res 2024; 17:11786469241266312. [PMID: 39092002 PMCID: PMC11292681 DOI: 10.1177/11786469241266312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 06/03/2024] [Indexed: 08/04/2024] Open
Abstract
Tryptophan is an essential amino acid and plays an important role in several metabolic processes relevant for the human health. As the main metabolic pathway for tryptophan along the kynurenine axis is involved in inflammatory responses, changed metabolite levels can be used to monitor inflammatory diseases such as ulcerative colitis. As a progenitor of serotonin, altered tryptophan levels have been related to several neurogenerative diseases as well as depression or anxiety. While tryptophan concentrations are commonly evaluated in serum, a non-invasive detection approach using saliva might offer significant advantages, especially during long-term treatments of patients or elderly. In order to estimate whether active transport processes for tryptophan might contribute to a potential correlation between blood and saliva tryptophan concentrations, we investigated tryptophan's transport across an established oral mucosa in vitro model. Interestingly, treatment with tryptophan revealed a concentration dependent secretion of tryptophan and the presence of a saturable transporter while transport studies with deuterated tryptophan displayed increased permeability from the saliva to the blood compartment. Protein analysis demonstrated a distinct expression of L-type amino acid transporter 1 (LAT1), the major transporter for tryptophan, and exposure to inhibitors (2 -amino-2-norbornanecarboxylic acid (BCH), L-leucine) led to increased tryptophan levels on the saliva side. Additionally, exposure to tryptophan in equilibrium studies resulted in a regulation of LAT1 at the mRNA level. The data collected in this study suggest the participation of active transport mechanisms for tryptophan across the oral mucosa epithelium. Future studies should investigate the transport of tryptophan across salivary gland epithelia in order to enable a comprehensive understanding of tryptophan exchange at the blood-saliva barrier.
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Affiliation(s)
- Grace C. Lin
- AIT – Austrian Institute of Technology GmbH, Competence Unit Molecular Diagnostics, Center for Health and Bioresources, Vienna, Austria
| | - Julia Tevini
- Medical University of Innsbruck, Biocenter, Institute of Medical Biochemistry, Austria
- Paracelsus Medical University, Department of Laboratory Medicine, Salzburg, Austria
| | - Lisa Mair
- Medical University of Innsbruck, Biocenter, Institute of Medical Biochemistry, Austria
| | - Heinz-Peter Friedl
- AIT – Austrian Institute of Technology GmbH, Competence Unit Molecular Diagnostics, Center for Health and Bioresources, Vienna, Austria
| | - Dietmar Fuchs
- Medical University of Innsbruck, Biocenter, Institute of Biological Chemistry, Austria
| | - Thomas Felder
- Paracelsus Medical University, Department of Laboratory Medicine, Salzburg, Austria
| | - Johanna M. Gostner
- Medical University of Innsbruck, Biocenter, Institute of Medical Biochemistry, Austria
| | - Winfried Neuhaus
- AIT – Austrian Institute of Technology GmbH, Competence Unit Molecular Diagnostics, Center for Health and Bioresources, Vienna, Austria
- Department of Medicine, Faculty of Medicine and Dentistry, Danube Private University, Krems, Austria
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Ren C, Zhang S, Chen Y, Deng K, Kuang M, Gong Z, Zhang K, Wang P, Huang P, Zhou Z, Gong A. Exploring nicotinamide adenine dinucleotide precursors across biosynthesis pathways: Unraveling their role in the ovary. FASEB J 2024; 38:e23804. [PMID: 39037422 DOI: 10.1096/fj.202400453r] [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: 03/02/2024] [Revised: 05/31/2024] [Accepted: 06/26/2024] [Indexed: 07/23/2024]
Abstract
Natural Nicotinamide Adenine Dinucleotide (NAD+) precursors have attracted much attention due to their positive effects in promoting ovarian health. However, their target tissue, synthesis efficiency, advantages, and disadvantages are still unclear. This review summarizes the distribution of NAD+ at the tissue, cellular and subcellular levels, discusses its biosynthetic pathways and the latest findings in ovary, include: (1) NAD+ plays distinct roles both intracellularly and extracellularly, adapting its distribution in response to requirements. (2) Different precursors differs in target tissues, synthetic efficiency, biological utilization, and adverse effects. Importantly: tryptophan is primarily utilized in the liver and kidneys, posing metabolic risks in excess; nicotinamide (NAM) is indispensable for maintaining NAD+ levels; nicotinic acid (NA) constructs a crucial bridge between intestinal microbiota and the host with diverse functions; nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) increase NAD+ systemically and can be influenced by delivery route, tissue specificity, and transport efficiency. (3) The biosynthetic pathways of NAD+ are intricately intertwined. They provide multiple sources and techniques for NAD+ synthesis, thereby reducing the dependence on a single molecule to maintain cellular NAD+ levels. However, an excess of a specific precursor potentially influencing other pathways. In addition, Protein expression analysis suggest that ovarian tissues may preferentially utilize NAM and NMN. These findings summarize the specific roles and potential of NAD+ precursors in enhancing ovarian health. Future research should delve into the molecular mechanisms and intervention strategies of different precursors, aiming to achieve personalized prevention or treatment of ovarian diseases, and reveal their clinical application value.
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Affiliation(s)
- Caifang Ren
- School of Medicine, Jiangsu University, Zhenjiang, China
- Hematological Disease Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Shuang Zhang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yanyan Chen
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Kaiping Deng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Meiqian Kuang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zihao Gong
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Ke Zhang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Panqi Wang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Pan Huang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Zhengrong Zhou
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Aihua Gong
- School of Medicine, Jiangsu University, Zhenjiang, China
- Hematological Disease Institute of Jiangsu University, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
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Lee B, Lee SM, Song JW, Choi JW. Gut Microbiota Metabolite Messengers in Brain Function and Pathology at a View of Cell Type-Based Receptor and Enzyme Reaction. Biomol Ther (Seoul) 2024; 32:403-423. [PMID: 38898687 PMCID: PMC11214962 DOI: 10.4062/biomolther.2024.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/02/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024] Open
Abstract
The human gastrointestinal (GI) tract houses a diverse microbial community, known as the gut microbiome comprising bacteria, viruses, fungi, and protozoa. The gut microbiome plays a crucial role in maintaining the body's equilibrium and has recently been discovered to influence the functioning of the central nervous system (CNS). The communication between the nervous system and the GI tract occurs through a two-way network called the gut-brain axis. The nervous system and the GI tract can modulate each other through activated neuronal cells, the immune system, and metabolites produced by the gut microbiome. Extensive research both in preclinical and clinical realms, has highlighted the complex relationship between the gut and diseases associated with the CNS, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. This review aims to delineate receptor and target enzymes linked with gut microbiota metabolites and explore their specific roles within the brain, particularly their impact on CNS-related diseases.
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Affiliation(s)
- Bada Lee
- Department of Biomedicinal and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Soo Min Lee
- Department of Biomedicinal and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae Won Song
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jin Woo Choi
- Department of Biomedicinal and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
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Mruczyk K, Molska M, Wójciak RW, Śliwicka E, Cisek-Woźniak A. Associated between cognition, brain-derived neurotrophic factor (BDNF) and macronutrients in normal and overweight postmenopausal women. Exp Gerontol 2024; 192:112449. [PMID: 38704127 DOI: 10.1016/j.exger.2024.112449] [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: 04/04/2024] [Revised: 04/26/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
BDNF is a protein associated with cognitive dysfunction. The aim of the study was to determine the relationship between BDNF and cognitive functions and the intake of macronutrients in postmenopausal women. For this purpose, 72 postmenopausal women were recruited to the study and divided into two subgroups: overweight/obese and normal weight. Using a 3-day food record, nutrition was assessed. The markers studied were the level of BDNF, which was determined from the venous blood serum collected from women, and selected cognitive functions. We observed that in the normal BMI group macronutrient intake was correlated with BDNF levels, and only total fat and carbohydrate intake were inversely correlated with BDNF levels. There were inverse correlations observed among selected parameters of cognitive functioning. In the Ov/Ob group, macronutrient intake correlated with the BDNF level for several variables, e.g. vice versa with total protein, fat and carbohydrate intake, as well as dietary cholesterol. It has also been noted that there are links between the BDNF factor and excessive body weight.
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Affiliation(s)
- Kinga Mruczyk
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
| | - Marta Molska
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
| | - Rafał W Wójciak
- Department of Clinical Psychology, University of Medical Sciences, Poznań, Poland.
| | - Ewa Śliwicka
- Department of Physiology and Biochemistry, Poznan University of Physical Education, Królowej Jadwigi 27/39, 61-871, Poznań, Poland.
| | - Angelika Cisek-Woźniak
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
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Dar W. Aspartame-induced cognitive dysfunction: Unveiling role of microglia-mediated neuroinflammation and molecular remediation. Int Immunopharmacol 2024; 135:112295. [PMID: 38776852 DOI: 10.1016/j.intimp.2024.112295] [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: 03/04/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Aspartame, an artificial sweetener, is consumed by millions of people globally. There are multiple reports of aspartame and its metabolites affecting cognitive functions in animal models and humans, which include learning problems, headaches, seizures, migraines, irritable moods, anxiety, depression, and insomnia. These cognitive deficits and associated symptoms are partly attributed to dysregulated excitatory and inhibitory neurotransmitter balance due to aspartate released from aspartame, resulting in an excitotoxic effect in neurons, leading to neuronal damage. However, microglia, a central immunocompetent cell type in brain tissue and a significant player in inflammation can contribute to the impact. Microglia rapidly respond to changes in CNS homeostasis. Aspartame consumption might affect the microglia phenotype directly via methanol-induced toxic effects and indirectly via aspartic acid-mediated excitotoxicity, exacerbating symptoms of cognitive decline. Long-term oral consumption of aspartame thus might change microglia's phenotype from ramified to activated, resulting in chronic or sustained activation, releasing excess pro-inflammatory molecules. This pro-inflammatory surge might lead to the degeneration of healthy neurons and other glial cells, impairing cognition. This review will deliberate on possible links and research gaps that need to be explored concerning aspartame consumption, ecotoxicity and microglia-mediated inflammatory cognitive impairment. The study covers a comprehensive analysis of the impact of aspartame consumption on cognitive function, considering both direct and indirect effects, including the involvement of microglia-mediated neuroinflammation. We also propose a novel intervention strategy involving tryptophan supplementation to mitigate cognitive decline symptoms in individuals with prolonged aspartame consumption, providing a potential solution to address the adverse effects of aspartame on cognitive function.
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Affiliation(s)
- Waseem Dar
- Translational Neurobiology and Disease Modelling Laboratory, Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence, Greater Noida, 201314, India.
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Díez-Solinska A, Goñi-Balentziaga O, Beitia-Oyarzabal G, Muñoz-Culla M, Vegas O, Azkona G. Chronic defeat stress induces monoamine level dysregulation in the prefrontal cortex but not in the hippocampus of OF1 male mice. Behav Brain Res 2024; 467:115023. [PMID: 38688411 DOI: 10.1016/j.bbr.2024.115023] [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: 02/28/2024] [Revised: 04/19/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Chronic social stress can increase susceptibility to chronic diseases such as depression. One of the most used models to study the physiological mechanisms and behavioral outcomes of this type of stress is chronic defeat stress (CDS) in male mice. OF1 male mice were subjected to a stress period lasting 18 days. During that time, non-stressed animals were housed in groups. The cluster analysis of the behavioral profile displayed during the first social interaction divided subjects into two groups: active/aggressive (AA) and passive/reactive (PR). The day after the end of the stress period, the following behavioral analyses were performed: the sucrose preference test (SPT) on day 19, the open field test (OFT) on day 20, and the forced swim test (FST) on day 21. Immediately after completing the last test, animals were weighed, and blood samples were obtained. Then, they were sacrificed, and their prefrontal cortices and hippocampi were removed and stored to analyze monoamine levels. Stressed animals displayed anhedonia, and solely the PR mice continued to show higher levels of immobility in the OFT and FST. All stressed animals, regardless of the coping strategy, presented higher plasma corticosterone levels. In addition, stressed mice showed lower levels of tyrosine, dopamine, DOPAC, MHPG, kynurenine, kynurenic acid, and 5-HIAA levels but higher serotonin levels in the prefrontal cortex, not in the hippocampus. In conclusion, our results show that CSD induces differences in monoamine levels between brain areas, and these differences did not respond to the coping strategy adopted.
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Affiliation(s)
- Alina Díez-Solinska
- Department of Basic Psychological Processes and their Development, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain
| | - Olatz Goñi-Balentziaga
- Department of Clinical and Health Psychology, and Research Methods, School of Psychology, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain
| | - Garikoitz Beitia-Oyarzabal
- Department of Basic Psychological Processes and their Development, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain
| | - Maider Muñoz-Culla
- Department of Basic Psychological Processes and their Development, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain; Biogipuzkoa Health Research Institute, Donostia-San Sebastian 20014, Spain
| | - Oscar Vegas
- Department of Basic Psychological Processes and their Development, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain; Biogipuzkoa Health Research Institute, Donostia-San Sebastian 20014, Spain
| | - Garikoitz Azkona
- Department of Basic Psychological Processes and their Development, University of the Basque Country (UPV/EHU), Donostia-San Sebastian 20018, Spain.
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Scorsone E, Stewart S, Hamel M. Highly Sensitive and Selective Detection of L-Tryptophan by ECL Using Boron-Doped Diamond Electrodes. SENSORS (BASEL, SWITZERLAND) 2024; 24:3627. [PMID: 38894416 PMCID: PMC11175342 DOI: 10.3390/s24113627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 05/27/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024]
Abstract
L-tryptophan is an amino acid that is essential to the metabolism of humans. Therefore, there is a high interest for its detection in biological fluids including blood, urine, and saliva for medical studies, but also in food products. Towards this goal, we report on a new electrochemiluminescence (ECL) method for L-tryptophan detection involving the in situ production of hydrogen peroxide at the surface of boron-doped diamond (BDD) electrodes. We demonstrate that the ECL response efficiency is directly related to H2O2 production at the electrode surface and propose a mechanism for the ECL emission of L-tryptophan. After optimizing the analytical conditions, we show that the ECL response to L-tryptophan is directly linear with concentration in the range of 0.005 to 1 µM. We achieved a limit of detection of 0.4 nM and limit of quantification of 1.4 nM in phosphate buffer saline (PBS, pH 7.4). Good selectivity against other indolic compounds (serotonin, 3-methylindole, tryptamine, indole) potentially found in biological fluids was observed, thus making this approach highly promising for quantifying L-tryptophan in a broad range of aqueous matrices of interest.
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Affiliation(s)
- Emmanuel Scorsone
- Université Paris-Saclay, CEA, List, F-91120 Palaiseau, France; (S.S.)
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12
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Kondo T, Okada Y, Shizuya S, Yamaguchi N, Hatakeyama S, Maruyama K. Neuroimmune modulation by tryptophan derivatives in neurological and inflammatory disorders. Eur J Cell Biol 2024; 103:151418. [PMID: 38729083 DOI: 10.1016/j.ejcb.2024.151418] [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: 12/25/2023] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024] Open
Abstract
The nervous and immune systems are highly developed, and each performs specialized physiological functions. However, they work together, and their dysfunction is associated with various diseases. Specialized molecules, such as neurotransmitters, cytokines, and more general metabolites, are essential for the appropriate regulation of both systems. Tryptophan, an essential amino acid, is converted into functional molecules such as serotonin and kynurenine, both of which play important roles in the nervous and immune systems. The role of kynurenine metabolites in neurodegenerative and psychiatric diseases has recently received particular attention. Recently, we found that hyperactivity of the kynurenine pathway is a critical risk factor for septic shock. In this review, we first outline neuroimmune interactions and tryptophan derivatives and then summarized the changes in tryptophan metabolism in neurological disorders. Finally, we discuss the potential of tryptophan derivatives as therapeutic targets for neuroimmune disorders.
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Affiliation(s)
- Takeshi Kondo
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido 060-8636, Japan
| | - Yuka Okada
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Wakayama 641-0012, Japan
| | - Saika Shizuya
- Department of Ophthalmology, Wakayama Medical University School of Medicine, Wakayama 641-0012, Japan
| | - Naoko Yamaguchi
- Department of Pharmacology, School of Medicine, Aichi Medical University, Aichi 480-1195, Japan
| | - Shigetsugu Hatakeyama
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Hokkaido 060-8636, Japan
| | - Kenta Maruyama
- Department of Pharmacology, School of Medicine, Aichi Medical University, Aichi 480-1195, Japan.
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13
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Saha Roy D, Gupta A, Vishvakarma V, Krupa P, Li MS, Maiti S. Serotonin Promotes Vesicular Association and Fusion by Modifying Lipid Bilayers. J Phys Chem B 2024; 128:4975-4985. [PMID: 38743687 DOI: 10.1021/acs.jpcb.4c00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The primary event in chemical neurotransmission involves the fusion of a membrane-limited vesicle at the plasma membrane and the subsequent release of its chemical neurotransmitter cargo. The cargo itself is not known to have any effect on the fusion event. However, amphiphilic monoamine neurotransmitters (e.g., serotonin and dopamine) are known to strongly interact with lipid bilayers and to affect their mechanical properties, which can in principle impact membrane-mediated processes. Here, we probe whether serotonin can enhance the association and fusion of artificial lipid vesicles in vitro. We employ fluorescence correlation spectroscopy and total internal reflection fluorescence microscopy to measure the attachment and fusion of vesicles whose lipid compositions mimic the major lipid components of synaptic vesicles. We find that the association between vesicles and supported lipid bilayers is strongly enhanced in a serotonin dose-dependent manner, and this drives an increase in the rate of spontaneous fusion. Molecular dynamics simulations and fluorescence spectroscopy data show that serotonin insertion increases the water content of the hydrophobic part of the bilayer. This suggests that the enhanced membrane association is likely driven by an energetically favorable drying transition. Other monoamines, such as dopamine and norepinephrine, but not other related species, such as tryptophan, show similar effects on membrane association. Our results reveal a lipid bilayer-mediated mechanism by which monoamines can themselves modulate vesicle fusion, potentially adding to the control toolbox for the tightly regulated process of neurotransmission in vivo.
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Affiliation(s)
- Debsankar Saha Roy
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India
| | - Ankur Gupta
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India
| | - Vicky Vishvakarma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India
| | - Pawel Krupa
- Institute of Physics, Polish Academy of Sciences, Warsaw 02-668, Poland
| | - Mai Suan Li
- Institute of Physics, Polish Academy of Sciences, Warsaw 02-668, Poland
- Institute for Computational Science and Technology, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, 729110 Ho Chi Minh City, Vietnam
| | - Sudipta Maiti
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India
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14
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Visser K, Ciubotariu D, de Koning ME, Jacobs B, van Faassen M, van der Ley C, Mayer AR, Meier TB, Bourgonje AR, Kema IP, van Goor H, van der Naalt J, van der Horn HJ. Exploring the kynurenine pathway in mild traumatic brain injury: A longitudinal study. J Neurochem 2024. [PMID: 38770668 DOI: 10.1111/jnc.16137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/26/2024] [Accepted: 05/08/2024] [Indexed: 05/22/2024]
Abstract
A potential source of novel biomarkers for mTBI is the kynurenine pathway (KP), a metabolic pathway of tryptophan (Trp), that is up-regulated by neuroinflammation and stress. Considering that metabolites of the KP (kynurenines) are implicated in various neuropsychiatric diseases, exploration of this pathway could potentially bridge the gap between physiological and psychological factors in the recovery process after mTBI. This study, therefore, set out to characterize the KP after mTBI and to examine associations with long-term outcome. Patients were prospectively recruited at the emergency department (ED), and blood samples were obtained in the acute phase (<24 h; N = 256) and at 1-month follow-up (N = 146). A comparison group of healthy controls (HC; N = 32) was studied at both timepoints. Trp, kynurenines, and interleukin (IL)-6 and IL-10 were quantified in plasma. Clinical outcome was measured at six months post-injury. Trp, xanthurenic acid (XA), and picolinic acid (PA) were significantly reduced in patients with mTBI relative to HC, corrected for age and sex. For Trp (d = -0.57 vs. d = -0.29) and XA (d = -0.98 vs. d = -0.32), larger effects sizes were observed during the acute phase compared to one-month follow-up, while for PA (d = -0.49 vs. d = -0.52) effect sizes remained consistent. Findings for other kynurenines (e.g., kynurenine, kynurenic acid, and quinolinic acid) were non-significant after correction for multiple testing. Within the mTBI group, lower acute Trp levels were significantly related to incomplete functional recovery and higher depression scores at 6 months post-injury. No significant relationships were found for Trp, XA, and PA with IL-6 or IL-10 concentrations. In conclusion, our findings indicate that perturbations of the plasma KP in the hyperacute phase of mTBI and 1 month later are limited to the precursor Trp, and glutamate system modulating kynurenines XA and PA. Correlations between acute reductions of Trp and unfavorable outcomes may suggest a potential substrate for pharmacological intervention.
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Affiliation(s)
- Koen Visser
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Diana Ciubotariu
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Myrthe E de Koning
- Department of Neurology, Medical Spectrum Twente, Enschede, The Netherlands
| | - Bram Jacobs
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martijn van Faassen
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Claude van der Ley
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Andrew R Mayer
- The Mind Research Network and LBERI, Albuquerque, New Mexico, USA
| | - Timothy B Meier
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Biomedical Engineering, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Arno R Bourgonje
- The Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Harry van Goor
- Division of Pathology of the Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Joukje van der Naalt
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Harm J van der Horn
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- The Mind Research Network and LBERI, Albuquerque, New Mexico, USA
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15
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Elfakharany SA, Eskaros SS, Azhary NME, Abdelmonsif DA, Zeitoun TM, Ammar GAG, Hatem YA. Neuroprotective Role of Selenium Nanoparticles Against Behavioral, Neurobiochemical and Histological Alterations in Rats Subjected to Chronic Restraint Stress. Mol Neurobiol 2024:10.1007/s12035-024-04196-3. [PMID: 38703343 DOI: 10.1007/s12035-024-04196-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024]
Abstract
Chronic stress induces changes in the prefrontal cortex and hippocampus. Selenium nanoparticles (SeNPs) showed promising results in several neurological animal models. The implementation of SeNPs in chronic restraint stress (CRS) remains to be elucidated. This study was done to determine the possible protective effects of selenium nanoparticles on behavioral changes and brain oxidative stress markers in a rat model of CRS. 50 rats were divided into three groups; control group (n = 10), untreated CRS group (n = 10) and CRS-SeNPs treated group (n = 30). Restraint stress was performed 6 h./day for 21 days. Rats of CRS-SeNPs treated group received 1, 2.5 or 5 mg/kg SeNPs (10 rats each) by oral gavage for 21 days. Rats were subjected to behavioral assessments and then sacrificed for biochemical and histological analysis of the prefrontal cortex and hippocampus. Prefrontal cortical and hippocampal serotonin levels, oxidative stress markers including malondialdehyde (MDA), reduced glutathione (GSH) and glutathione peroxidase (GPx), tumor necrosis factor alpha (TNF-α) and caspase-3 were assessed. Accordingly, different doses of SeNPs showed variable effectiveness in ameliorating disease parameters, with 2.5 mg/kg dose of SeNPs showing the best improving results in all studied parameters. The present study exhibited the neuroprotective role of SeNPs in rats subjected to CRS and proposed their antioxidant, anti-inflammatory and anti-apoptotic effects as the possible mechanism for increased prefrontal cortical and hippocampal serotonin level, ameliorated anxiety-like and depressive-like behaviors and improved prefrontal cortical and hippocampal histological architecture.
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Affiliation(s)
- Sarah A Elfakharany
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Al-Mouassat Medical Campus, El Hadara, Alexandria, Egypt.
| | - Samir S Eskaros
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Al-Mouassat Medical Campus, El Hadara, Alexandria, Egypt
| | - Nesrine M El Azhary
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Al-Mouassat Medical Campus, El Hadara, Alexandria, Egypt
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, University of Alexandria, Al- Moussat Medical Campus, El Hadara, Alexandria, Egypt
| | - Teshreen M Zeitoun
- Department of Histology and Cell Biology, Faculty of Medicine, University of Alexandria, Al-Moussat Medical Campus, El Hadara, Alexandria, Egypt
| | - Gamal A G Ammar
- Biotechnology Unit, Plant Production Department (PPD), Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El‑Arab City, Alexandria, Egypt
| | - Youssef A Hatem
- Department of Medical Physiology, Faculty of Medicine, University of Alexandria, Al-Mouassat Medical Campus, El Hadara, Alexandria, Egypt
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16
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Liang J, Cheng ZY, Shan F, Cao Y, Xia QR. Serum indoleamine 2, 3-dioxygenase and tryptophan-2, 3-dioxygenase: potential biomarkers for the diagnosis of major depressive disorder. Psychopharmacology (Berl) 2024; 241:1093-1099. [PMID: 38286858 DOI: 10.1007/s00213-024-06542-8] [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: 07/18/2023] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
OBJECTIVE The objective of this study was to observe the changes in the levels of indoleamine 2, 3-dioxygenase (IDO) and tryptophan-2, 3-dioxygenase (TDO) in patients with major depressive disorder (MDD) and investigate their potential role as novel biomarkers for diagnosing MDD. METHODS A total of 55 MDD patients and 55 healthy controls (HC) were enrolled in the study. The severity of MDD was assessed using the 24-item Hamilton Depression Rating Scale (HAMD-24) before and after treatment. The serum concentrations of IDO and TDO were measured at baseline and after treatment. The correlations between the serum levels of IDO and TDO and HAMD-24 scores were evaluated using Pearson's correlation test. Receiver operating characteristic (ROC) curve analysis was used to evaluate the area under the curve (AUC) of serum levels of IDO and TDO for discriminating MDD patients from HC. RESULTS The serum IDO and TDO concentrations were significantly higher in patients with MDD at baseline than in healthy controls, and decreased significantly after 2 weeks or 1 month of treatment. The levels of IDO and TDO were significantly positively correlated with HAMD-24 scores. Furthermore, the AUC values for IDO and TDO were 0.999 and 0.966, respectively. CONCLUSION The study suggests that serum IDO and TDO may serve as novel biomarkers for diagnosing MDD. These findings may lead to a better understanding of the pathogenesis of MDD and the development of new therapeutic targets.
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Affiliation(s)
- Jun Liang
- Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China
- Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China
- Anhui Clinical Research Center for Mental Disorders, Hefei, China
| | - Zhuo-Yu Cheng
- Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China
- Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China
- Anhui Clinical Research Center for Mental Disorders, Hefei, China
| | - Feng Shan
- Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China
- Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China
- Anhui Clinical Research Center for Mental Disorders, Hefei, China
| | - Yin Cao
- Affiliated Psychological Hospital of Anhui Medical University, Hefei, China
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China
- Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China
- Anhui Clinical Research Center for Mental Disorders, Hefei, China
| | - Qing-Rong Xia
- Affiliated Psychological Hospital of Anhui Medical University, Hefei, China.
- Department of Pharmacy, Hefei Fourth People's Hospital, Hefei, China.
- Psychopharmacology Research Laboratory, Anhui Mental Health Center, Hefei, China.
- Anhui Clinical Research Center for Mental Disorders, Hefei, China.
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17
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Osuch B, Misztal T, Pałatyńska K, Tomaszewska-Zaremba D. Implications of Kynurenine Pathway Metabolism for the Immune System, Hypothalamic-Pituitary-Adrenal Axis, and Neurotransmission in Alcohol Use Disorder. Int J Mol Sci 2024; 25:4845. [PMID: 38732064 PMCID: PMC11084367 DOI: 10.3390/ijms25094845] [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: 03/14/2024] [Revised: 04/21/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
In recent years, there has been a marked increase in interest in the role of the kynurenine pathway (KP) in mechanisms associated with addictive behavior. Numerous reports implicate KP metabolism in influencing the immune system, hypothalamic-pituitary-adrenal (HPA) axis, and neurotransmission, which underlie the behavioral patterns characteristic of addiction. An in-depth analysis of the results of these new studies highlights interesting patterns of relationships, and approaching alcohol use disorder (AUD) from a broader neuroendocrine-immune system perspective may be crucial to better understanding this complex phenomenon. In this review, we provide an up-to-date summary of information indicating the relationship between AUD and the KP, both in terms of changes in the activity of this pathway and modulation of this pathway as a possible pharmacological approach for the treatment of AUD.
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Affiliation(s)
- Bartosz Osuch
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland; (T.M.); (K.P.); (D.T.-Z.)
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18
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Zhu Y, Yin L, Liu Q, Guan Y, Nie S, Zhu Y, Mo F. Tryptophan metabolic pathway plays a key role in the stress-induced emotional eating. Curr Res Food Sci 2024; 8:100754. [PMID: 38736909 PMCID: PMC11087915 DOI: 10.1016/j.crfs.2024.100754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024] Open
Abstract
Chronic stress disrupts the emotional and energetic balance, which may lead to abnormal behaviors such as binge eating. This overeating behavior alleviating the negative emotions is called emotional eating, which may exacerbate emotional instability and lead to obesity. It is a complex and multifaceted process that has not yet been fully understood. In this study, we constructed an animal model of chronic mild stress (CMS)-induced emotional eating. The emotional eating mice were treated with tryptophan for 21 days to reveal the key role of tryptophan. Furthermore, serum-targeted metabolomics, immunohistochemical staining, qPCR and ELISA were performed. The results showed that CMS led to the binge eating behavior, accompanied by the disturbed intestinal tryptophan-derived serotonin (5-hydroxytryptamine; 5-HT) metabolic pathways. Then we found that tryptophan supplementation improved depression and anxiety-like behaviors as well as abnormal eating behaviors. Tryptophan supplementation improved the abnormal expression of appetite regulators (e.g., AgRP, OX1R, MC4R), and tryptophan supplementation also increased the tryptophan hydroxylase 2 (tph2) and 5-HT receptors in the hypothalamus of CMS mice, which indicates that the 5-HT metabolic pathway influences feeding behavior. In vitro experiments confirmed that 5-HT supplementation ameliorated corticosterone-induced aberrant expression of appetite regulators, such as AgRP and OX1R, in the hypothalamic cell line. In conclusion, our findings revealed that the tryptophan-derived 5-HT pathway plays an important role in emotional eating, especially in providing targeted therapy for stress-induced obesity.
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Affiliation(s)
- Ying Zhu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Lifeng Yin
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Qing Liu
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Yaoxing Guan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Shuang Nie
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Yongheng Zhu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Fengfeng Mo
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
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Pietsch C, Konrad J, Wernicke von Siebenthal E, Pawlak P. Multiple faces of stress in the zebrafish ( Danio rerio) brain. Front Physiol 2024; 15:1373234. [PMID: 38711953 PMCID: PMC11070943 DOI: 10.3389/fphys.2024.1373234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/19/2024] [Indexed: 05/08/2024] Open
Abstract
The changing expressions of certain genes as a consequence of exposure to stressors has not been studied in detail in the fish brain. Therefore, a stress trial with zebrafish was conducted, aiming at identifying relevant gene regulation pathways in different regions of the brain. As acute stressors within this trial, feed rewarding, feed restriction, and air exposure have been used. The gene expression data from the experimental fish brains have been analyzed by means of principal component analyses (PCAs), whereby the individual genes have been compiled according to the regulation pathways in the brain. The results did not indicate a mutual response across the treatment and gender groups. To evaluate whether a similar sample structure belonging to a large sample size would have allowed the classification of the gene expression patterns according to the treatments, the data have been bootstrapped and used for building random forest models. These revealed a high accuracy of the classifications, but different genes in the female and male zebrafish were found to have contributed to the classification algorithms the most. These analyses showed that less than eight genes are, in most cases, sufficient for an accurate classification. Moreover, mainly genes belonging to the stress axis, to the isotocin regulation pathways, or to the serotonergic pathways had the strongest influence on the outcome of the classification models.
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Affiliation(s)
- Constanze Pietsch
- School of Agricultural, Forest and Food Sciences (HAFL), University of Applied Sciences Bern (BFH), Zollikofen, Switzerland
| | - Jonathan Konrad
- School of Agricultural, Forest and Food Sciences (HAFL), University of Applied Sciences Bern (BFH), Zollikofen, Switzerland
| | - Elena Wernicke von Siebenthal
- School of Agricultural, Forest and Food Sciences (HAFL), University of Applied Sciences Bern (BFH), Zollikofen, Switzerland
| | - Paulina Pawlak
- School of Agricultural, Forest and Food Sciences (HAFL), University of Applied Sciences Bern (BFH), Zollikofen, Switzerland
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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20
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Mphephu MM, Olaokun OO, Mavimbela C, Hofmeyer G, Mwale M, Mkolo NM. Metabolomics approach for predicting stomach and colon contents in dead Arctocephalus pusillus pusillus, Arctocephalus tropicalis, Lobodon carcinophaga and Ommatophoca rossii from sub-Antarctic region. PLoS One 2024; 19:e0300319. [PMID: 38557648 PMCID: PMC10984408 DOI: 10.1371/journal.pone.0300319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 02/27/2024] [Indexed: 04/04/2024] Open
Abstract
The dietary habits of seals play a pivotal role in shaping management and administration policies, especially in regions with potential interactions with fisheries. Previous studies have utilized various methods, including traditional approaches, to predict seal diets by retrieving indigestible prey parts, such as calcified structures, from intestines, feces, and stomach contents. Additionally, methods evaluating nitrogen and stable isotopes of carbon have been employed. The metabolomics approach, capable of quantifying small-scale molecules in biofluids, holds promise for specifying dietary exposures and estimating disease risk. This study aimed to assess the diet composition of five seal species-Arctocephalus pusillus pusillus, Lobodon carcinophaga, Ommatophoca rossii, and Arctocephalus tropicalis 1 and 2-by analyzing stomach and colon contents collected from stranded dead seals at various locations. Metabolite concentrations in the seal stomach and colon contents were determined using Nuclear Magnetic Resonance Spectroscopy. Among the colon and stomach contents, 29 known and 8 unknown metabolites were identified. Four metabolites (alanine, fumarate, lactate, and proline) from stomach contents and one metabolite (alanine) from colon contents showed no significant differences between seal species (p>0.05). This suggests that traces of these metabolites in the stomach and colon contents may be produced by the seals' gut microbiome or derived from other animals, possibly indicating reliance on fish caught at sea. Despite this insight, the cause of death for stranded seals remains unclear. The study highlights the need for specific and reliable biomarkers to precisely indicate dietary exposures across seal populations. Additionally, there is a call for the development of relevant metabolite and disease interaction networks to explore disease-related metabolites in seals. Ultimately, the metabolomic method employed in this study reveals potential metabolites in the stomach and colon contents of these seal species.
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Affiliation(s)
- Mukhethwa Micheal Mphephu
- Department of Biology, School of Science and Technology, Sefako Makgatho Health Science University, Ga-Rankuwa, Pretoria, South Africa
| | - Oyinlola Oluwunmi Olaokun
- Department of Biology, School of Science and Technology, Sefako Makgatho Health Science University, Ga-Rankuwa, Pretoria, South Africa
| | - Caswell Mavimbela
- Department of Biology, School of Science and Technology, Sefako Makgatho Health Science University, Ga-Rankuwa, Pretoria, South Africa
| | - Greg Hofmeyer
- Port Elizabeth Museum at Bayworld, Humewood, Port Elizabeth, South Africa
| | - Monica Mwale
- South African National Biodiversity Institute (SANBI), National Zoological Garden, Pretoria, South Africa
| | - Nqobile Monate Mkolo
- Department of Biology, School of Science and Technology, Sefako Makgatho Health Science University, Ga-Rankuwa, Pretoria, South Africa
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21
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O'Connell CJ, Reeder EL, Hymore JA, Brown RS, Notorgiacomo GA, Collins SM, Gudelsky GA, Robson MJ. Transcriptomic dynamics governing serotonergic dysregulation in the dorsal raphe nucleus following mild traumatic brain injury. Exp Neurol 2024; 374:114695. [PMID: 38246304 DOI: 10.1016/j.expneurol.2024.114695] [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: 09/22/2023] [Revised: 12/15/2023] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
Mild traumatic brain injury (mTBI) is a leading cause of disability in the United States, with neuropsychiatric disturbances such as depression, anxiety, PTSD, and social disturbances being common comorbidities following injury. The molecular mechanisms driving neuropsychiatric complications following neurotrauma are not well understood and current FDA-approved pharmacotherapies employed to ameliorate these comorbidities lack desired efficacy. Concerted efforts to understand the molecular mechanisms of and identify novel drug candidates for treating neurotrauma-elicited neuropsychiatric sequelae are clearly needed. Serotonin (5-HT) is linked to the etiology of neuropsychiatric disorders, however our understanding of how various forms of TBI directly affect 5-HT neurotransmission is limited. 5-HT neurons originate in the raphe nucleus (RN) of the midbrain and project throughout the brain to regulate diverse behavioral phenotypes. We hypothesize that the characterization of the dynamics governing 5-HT neurotransmission after injury will drive the discovery of novel drug targets and lead to a greater understanding of the mechanisms associated with neuropsychiatric disturbances following mild TBI (mTBI). Herein, we provide evidence that closed-head mTBI alters total DRN 5-HT levels, with RNA sequencing of the DRN revealing injury-derived alterations in transcripts required for the development, identity, and functional stability of 5-HT neurons. Further, using gene ontology analyses combined with immunohistological analyses, we have identified a novel mechanism of transcriptomic control within 5-HT neurons that may directly influence 5-HT neuron identity/function post-injury. These studies provide molecular evidence of injury-elicited 5-HT neuron dysregulation, data which may expedite the identification of novel therapeutic targets to attenuate TBI-elicited neuropsychiatric sequelae.
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Affiliation(s)
- Christopher J O'Connell
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA
| | - Evan L Reeder
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA
| | - Jacob A Hymore
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA
| | - Ryan S Brown
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA
| | | | - Sean M Collins
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA
| | - Gary A Gudelsky
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA; Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Matthew J Robson
- University of Cincinnati, James L. Winkle College of Pharmacy, Division of Pharmaceutical Sciences, Cincinnati, OH, USA; Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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22
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Peixoto D, Carvalho I, Machado M, Aragão C, Costas B, Azeredo R. Dietary tryptophan intervention counteracts stress-induced transcriptional changes in a teleost fish HPI axis during inflammation. Sci Rep 2024; 14:7354. [PMID: 38548769 PMCID: PMC10978975 DOI: 10.1038/s41598-024-57761-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/21/2024] [Indexed: 04/01/2024] Open
Abstract
Immune nutrition is currently used to enhance fish health by incorporating functional ingredients into aquafeeds. This study aimed to investigate the connections between tryptophan nutrition and the network that regulates the communication pathways between neuroendocrine and immune systems in European seabass (Dicentrarchus labrax). When tryptophan was supplemented in the diet of unstressed fish, it induced changes in the hypothalamic-pituitary-interrenal axis response to stress. Tryptophan-mediated effects were observed in the expression of anti-inflammatory cytokines and glucocorticoid receptors. Tryptophan supplementation decreased pro-opiomelanocortin b-like levels, that are related with adrenocorticotropic hormone and cortisol secretion. When stressed fish fed a tryptophan-supplemented diet were subjected to an inflammatory stimulus, plasma cortisol levels decreased and the expression of genes involved in the neuroendocrine response was altered. Modulatory effects of tryptophan dietary intervention on molecular patterns seem to be mediated by altered patterns in serotonergic activity.
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Affiliation(s)
- Diogo Peixoto
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Departamento de Biología Facultad de Ciencias del Mar y Ambientales, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Cádiz, Puerto Real, Spain
| | - Inês Carvalho
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Marina Machado
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Cláudia Aragão
- Centro de Ciências do Mar (CCMAR), Faro, Portugal
- Universidade do Algarve, Faro, Portugal
| | - Benjamín Costas
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - Rita Azeredo
- CIIMAR-Centro Interdisciplinar de Investigação Marinha e Ambiental, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
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23
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Yan S, Sun W, Tian S, Meng Z, Diao J, Zhou Z, Li L, Zhu W. Pre-mating nitenpyram exposure in male mice leads to depression-like behavior in offspring by affecting tryptophan metabolism in gut microbiota. J Environ Sci (China) 2024; 137:120-130. [PMID: 37980001 DOI: 10.1016/j.jes.2023.02.011] [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: 09/08/2022] [Revised: 01/23/2023] [Accepted: 02/07/2023] [Indexed: 11/20/2023]
Abstract
Several studies have confirmed that the health status of the paternal affects the health of the offspring, however, it remains unknown whether paternal exposure to pesticides affect the offspring health. Here, we used untargeted metabolomics and 16S rRNA sequencing technology, combined with tail suspension test and RT-qPCR to explore the effects of paternal exposure to nitenpyram on the neurotoxicity of offspring. Our results found that the paternal exposure to nitenpyram led to the offspring's depressive-like behaviors, accompanied by the reduction of tryptophan content and the disorder of microbial abundance in the gut of the offspring. Further, we determined the expression of tryptophan metabolism-related genes tryptophanase (tnaA) and tryptophan hydroxylase 1 (TpH1) in gut bacteria and colonic tissues. We found that tryptophan is metabolized to indoles rather than being absorbed into colonocytes, which coursed the reduce of tryptophan availability after nitenpyram exposure. In conclusion, our study deepens our understanding of the intergenerational toxic effects of pesticides.
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Affiliation(s)
- Sen Yan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Wei Sun
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Sinuo Tian
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Zhiyuan Meng
- College of Plant Protection/Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China
| | - Jinling Diao
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Zhiqiang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Li Li
- College of Plant Protection, Shanxi Agricultural University, Taiyuan 030031, China
| | - Wentao Zhu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
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24
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Abujrais S, Ubhayasekera SJKA, Bergquist J. Analysis of tryptophan metabolites and related compounds in human and murine tissue: development and validation of a quantitative and semi-quantitative method using high resolution mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1074-1082. [PMID: 38282545 DOI: 10.1039/d3ay01959d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
This study explores the metabolic differences between human and murine plasma in addition to differences between murine subcutaneous and visceral white adipose tissue. A quantitative and semi-quantitative targeted method was developed and validated for this purpose. The quantitative method includes tryptophan and its metabolites in addition to tyrosine, phenylalanine, taurine, B vitamins, neopterin, cystathionine and hypoxanthine. While the semi-quantitative method includes; 3-indoleacetic acid, 5-hydroxyindoleacetic acid, acetylcholine, asymmetric dimethylarginine, citrulline and methionine. Sample preparation was based on protein precipitation, while quantification was conducted using ultrahigh-performance liquid chromatography coupled to a quadrupole Orbitrap tandem mass spectrometer with electrospray ionization in the parallel reaction monitoring (PRM) mode. The low limit of quantification for all metabolites ranged from 1 to 200 ng mL-1. Matrix effects and recoveries for stable isotope labelled internal standards were evaluated, with most having a coefficient of variation (CV) of less than 15%. Results showed that a majority of the analytes passed both the intra- and interday precision and accuracy criteria. The comparative analysis of human and murine plasma metabolites reveals species-specific variations within the tryptophan metabolic pathway. Notably, murine plasma generally exhibits elevated concentrations of most compounds in this pathway, with the exceptions of kynurenine and quinolinic acid. Moreover, the investigation uncovers noteworthy metabolic disparities between murine visceral and subcutaneous white adipose tissues, with the subcutaneous tissue demonstrating significantly higher concentrations of tryptophan, phenylalanine, tyrosine, and serotonin. The findings also show that even a semi-quantitative method can provide comparable results to quantitative methods from other studies and be effective for assessing metabolites in a complex sample. Overall, this study provides a robust platform to compare human and murine metabolism, providing a valuable insight to future investigations.
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Affiliation(s)
- Sandy Abujrais
- Analytical Chemistry and Neurochemistry, Department of Chemistry - BMC, Uppsala University, Box 599, 75124, Uppsala, Sweden.
- The ME/CFS Collaborative Research Centre at Uppsala University, Sweden
| | - S J Kumari A Ubhayasekera
- Analytical Chemistry and Neurochemistry, Department of Chemistry - BMC, Uppsala University, Box 599, 75124, Uppsala, Sweden.
- The ME/CFS Collaborative Research Centre at Uppsala University, Sweden
| | - Jonas Bergquist
- Analytical Chemistry and Neurochemistry, Department of Chemistry - BMC, Uppsala University, Box 599, 75124, Uppsala, Sweden.
- The ME/CFS Collaborative Research Centre at Uppsala University, Sweden
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25
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Ali HS, de Visser SP. Catalytic divergencies in the mechanism of L-arginine hydroxylating nonheme iron enzymes. Front Chem 2024; 12:1365494. [PMID: 38406558 PMCID: PMC10884159 DOI: 10.3389/fchem.2024.1365494] [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: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 02/27/2024] Open
Abstract
Many enzymes in nature utilize a free arginine (L-Arg) amino acid to initiate the biosynthesis of natural products. Examples include nitric oxide synthases, which generate NO from L-Arg for blood pressure control, and various arginine hydroxylases involved in antibiotic biosynthesis. Among the groups of arginine hydroxylases, several enzymes utilize a nonheme iron(II) active site and let L-Arg react with dioxygen and α-ketoglutarate to perform either C3-hydroxylation, C4-hydroxylation, C5-hydroxylation, or C4-C5-desaturation. How these seemingly similar enzymes can react with high specificity and selectivity to form different products remains unknown. Over the past few years, our groups have investigated the mechanisms of L-Arg-activating nonheme iron dioxygenases, including the viomycin biosynthesis enzyme VioC, the naphthyridinomycin biosynthesis enzyme NapI, and the streptothricin biosynthesis enzyme OrfP, using computational approaches and applied molecular dynamics, quantum mechanics on cluster models, and quantum mechanics/molecular mechanics (QM/MM) approaches. These studies not only highlight the differences in substrate and oxidant binding and positioning but also emphasize on electronic and electrostatic differences in the substrate-binding pockets of the enzymes. In particular, due to charge differences in the active site structures, there are changes in the local electric field and electric dipole moment orientations that either strengthen or weaken specific substrate C-H bonds. The local field effects, therefore, influence and guide reaction selectivity and specificity and give the enzymes their unique reactivity patterns. Computational work using either QM/MM or density functional theory (DFT) on cluster models can provide valuable insights into catalytic reaction mechanisms and produce accurate and reliable data that can be used to engineer proteins and synthetic catalysts to perform novel reaction pathways.
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Affiliation(s)
- Hafiz Saqib Ali
- Chemistry Research Laboratory, Department of Chemistry and the INEOS Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, United Kingdom
| | - Sam P. de Visser
- Manchester Institute of Biotechnology and Department of Chemical Engineering, The University of Manchester, Manchester, United Kingdom
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26
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Yang YH, Li CX, Zhang RB, Shen Y, Xu XJ, Yu QM. A review of the pharmacological action and mechanism of natural plant polysaccharides in depression. Front Pharmacol 2024; 15:1348019. [PMID: 38389919 PMCID: PMC10883385 DOI: 10.3389/fphar.2024.1348019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Depression is a prevalent mental disorder. However, clinical treatment options primarily based on chemical drugs have demonstrated varying degrees of adverse reactions and drug resistance, including somnolence, nausea, and cognitive impairment. Therefore, the development of novel antidepressant medications that effectively reduce suffering and side effects has become a prominent area of research. Polysaccharides are bioactive compounds extracted from natural plants that possess diverse pharmacological activities and medicinal values. It has been discovered that polysaccharides can effectively mitigate depression symptoms. This paper provides an overview of the pharmacological action and mechanisms, intervention approaches, and experimental models regarding the antidepressant effects of polysaccharides derived from various natural sources. Additionally, we summarize the roles and potential mechanisms through which these polysaccharides prevent depression by regulating neurotransmitters, HPA axis, neurotrophic factors, neuroinflammation, oxidative stress, tryptophan metabolism, and gut microbiota. Natural plant polysaccharides hold promise as adjunctive antidepressants for prevention, reduction, and treatment of depression by exerting their therapeutic effects through multiple pathways and targets. Therefore, this review aims to provide scientific evidence for developing polysaccharide resources as effective antidepressant drugs.
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Affiliation(s)
- Yu-He Yang
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Chen-Xue Li
- Harbin University of Commerce, Harbin, China
| | | | - Ying Shen
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xue-Jiao Xu
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Qin-Ming Yu
- Heilongjiang University of Chinese Medicine, Harbin, China
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27
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Kaleta M, Hényková E, Menšíková K, Friedecký D, Kvasnička A, Klíčová K, Koníčková D, Strnad M, Kaňovský P, Novák O. Patients with Neurodegenerative Proteinopathies Exhibit Altered Tryptophan Metabolism in the Serum and Cerebrospinal Fluid. ACS Chem Neurosci 2024; 15:582-592. [PMID: 38194490 PMCID: PMC10853934 DOI: 10.1021/acschemneuro.3c00611] [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: 09/20/2023] [Revised: 11/27/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024] Open
Abstract
Some pathological conditions affecting the human body can also disrupt metabolic pathways and thus alter the overall metabolic profile. Knowledge of metabolic disturbances in specific diseases could thus enable the differential diagnosis of otherwise similar conditions. This work therefore aimed to comprehensively characterize changes in tryptophan metabolism in selected neurodegenerative diseases. Levels of 18 tryptophan-related neuroactive substances were determined by high throughput and sensitive ultrahigh-performance liquid chromatography-tandem mass spectrometry in time-linked blood serum and cerebrospinal fluid samples from 100 age-matched participants belonging to five cohorts: healthy volunteers (n = 21) and patients with Lewy body disease (Parkinson's disease and dementia with Lewy bodies; n = 31), four-repeat tauopathy (progressive supranuclear palsy and corticobasal syndrome; n = 10), multiple system atrophy (n = 13), and Alzheimer's disease (n = 25). Although these conditions have different pathologies and clinical symptoms, the discovery of new biomarkers is still important. The most statistically significant differences (with p-values of ≤0.05 to ≤0.0001) between the study cohorts were observed for three tryptophan metabolites: l-kynurenine in cerebrospinal fluid and 3-hydroxy-l-kynurenine and 5-hydroxy-l-tryptophan in blood serum. This led to the discovery of distinctive correlation patterns between the profiled cerebrospinal fluid and serum metabolites that could provide a basis for the differential diagnosis of neurodegenerative tauopathies and synucleinopathies. However, further large-scale studies are needed to determine the direct involvement of these metabolites in the studied neuropathologies, their response to medication, and their potential therapeutic relevance.
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Affiliation(s)
- Michal Kaleta
- Laboratory
of Growth Regulators, Institute of Experimental
Botany of the Czech Academy of Sciences & Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Eva Hényková
- Laboratory
of Growth Regulators, Institute of Experimental
Botany of the Czech Academy of Sciences & Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Kateřina Menšíková
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - David Friedecký
- Laboratory
for Inherited Metabolic Disorders, Department of Clinical Biochemistry,
University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Zdravotníků 248/7, 779 00 Olomouc, Czech Republic
| | - Aleš Kvasnička
- Laboratory
for Inherited Metabolic Disorders, Department of Clinical Biochemistry,
University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Zdravotníků 248/7, 779 00 Olomouc, Czech Republic
| | - Kateřina Klíčová
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Dorota Koníčková
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory
of Growth Regulators, Institute of Experimental
Botany of the Czech Academy of Sciences & Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Petr Kaňovský
- Department
of Neurology, University Hospital Olomouc, 779 00 Olomouc, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacky University, 779 00 Olomouc, Czech Republic
| | - Ondřej Novák
- Laboratory
of Growth Regulators, Institute of Experimental
Botany of the Czech Academy of Sciences & Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
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28
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Sawant N, Kshirsagar S, Reddy PH, Reddy AP. Protective effects of SSRI, Citalopram in mutant APP and mutant Tau expressed dorsal raphe neurons in Alzheimer's disease. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166942. [PMID: 37931714 DOI: 10.1016/j.bbadis.2023.166942] [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: 06/25/2023] [Revised: 10/05/2023] [Accepted: 10/30/2023] [Indexed: 11/08/2023]
Abstract
Depression is among the most common neuropsychiatric comorbidities in Alzheimer's disease (AD) and other Tauopathies. Apart from its anti-depressive and anxiolytic effects, selective serotonin reuptake inhibitor (SSRI) treatment also offers intracellular modifications that may help to improve neurogenesis, reduce amyloid burden & Tau pathologies, and neuroinflammation in AD. Despite its multifaceted impact in the brain, the exact physiological and molecular mechanism by which SSRIs such as Citalopram improve neurogenesis and synaptogenesis in dementia is poorly understood. In the current study, we investigated the protective role of SSRI, Citalopram, in serotonergic, medullary raphe neurons (RN46A-B14). RN46A-B14 cells were transfected with wild-type and mutant APP and Tau cDNAs for 24 h and then treated with 20 μM Cit for 24 h. We then assessed mRNA and protein levels of pTau, total Tau, serotonin related proteins such as TPH2, SERT, and 5HTR1a, synaptic proteins and the cytoskeletal structure. We also assessed cell survival, mitochondrial respiration and mitochondrial morphology. The mutant APP and Tau transfected cells showed increased levels of serotonin related proteins and mRNA, while the mRNA and protein levels of synaptic proteins were downregulated. Citalopram treatment significantly reduced pathologically pTau level along with the serotonin related protein levels. On the other hand, there was a significant increase in the mRNA and protein levels of synaptic genes and cytoskeletal structure in the treated groups. Further, Citalopram also improved cell survival, mitochondrial respiration and mitochondrial morphology in the treated cells that express mAPP and mTau. Taken together these findings suggest Citalopram could not only be a promising therapeutic drug for treating patients with depression, but also for AD patients.
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Affiliation(s)
- Neha Sawant
- Nutritional Sciences Department, Texas Tech University, Lubbock, TX, USA; Internal Medicine Department, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Sudhir Kshirsagar
- Internal Medicine Department, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Nutritional Sciences Department, Texas Tech University, Lubbock, TX, USA; Internal Medicine Department, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Pharmacology & Neuroscience Department, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Neurology Department, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Speech, Language and Hearing Sciences Departments, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Public Health Department, School of Population and Public Health, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Arubala P Reddy
- Nutritional Sciences Department, Texas Tech University, Lubbock, TX, USA.
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29
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Vazquez-Medina A, Rodriguez-Trujillo N, Ayuso-Rodriguez K, Marini-Martinez F, Angeli-Morales R, Caussade-Silvestrini G, Godoy-Vitorino F, Chorna N. Exploring the interplay between running exercises, microbial diversity, and tryptophan metabolism along the microbiota-gut-brain axis. Front Microbiol 2024; 15:1326584. [PMID: 38318337 PMCID: PMC10838991 DOI: 10.3389/fmicb.2024.1326584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/02/2024] [Indexed: 02/07/2024] Open
Abstract
The emergent recognition of the gut-brain axis connection has shed light on the role of the microbiota in modulating the gut-brain axis's functions. Several microbial metabolites, such as serotonin, kynurenine, tryptamine, indole, and their derivatives originating from tryptophan metabolism have been implicated in influencing this axis. In our study, we aimed to investigate the impact of running exercises on microbial tryptophan metabolism using a mouse model. We conducted a multi-omics analysis to obtain a comprehensive insight into the changes in tryptophan metabolism along the microbiota-gut-brain axis induced by running exercises. The analyses integrated multiple components, such as tryptophan changes and metabolite levels in the gut, blood, hippocampus, and brainstem. Fecal microbiota analysis aimed to examine the composition and diversity of the gut microbiota, and taxon-function analysis explored the associations between specific microbial taxa and functional activities in tryptophan metabolism. Our findings revealed significant alterations in tryptophan metabolism across multiple sites, including the gut, blood, hippocampus, and brainstem. The outcomes indicate a shift in microbiota diversity and tryptophan metabolizing capabilities within the running group, linked to increased tryptophan transportation to the hippocampus and brainstem through circulation. Moreover, the symbiotic association between Romboutsia and A. muciniphila indicated their potential contribution to modifying the gut microenvironment and influencing tryptophan transport to the hippocampus and brainstem. These findings have potential applications for developing microbiota-based approaches in the context of exercise for neurological diseases, especially on mental health and overall well-being.
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Affiliation(s)
- Alejandra Vazquez-Medina
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Nicole Rodriguez-Trujillo
- Nutrition and Dietetics Program, University of Puerto Rico, Rio Piedras Campus, San Juan, Puerto Rico
| | - Kiara Ayuso-Rodriguez
- Department of Biology, University of Puerto Rico, Rio Piedras Campus, San Juan, Puerto Rico
| | | | - Roberto Angeli-Morales
- Department of Biology, University of Puerto Rico, Rio Piedras Campus, San Juan, Puerto Rico
| | | | - Filipa Godoy-Vitorino
- Department of Microbiology and Medical Zoology, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Nataliya Chorna
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
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30
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Barakat H, Al-Qabba MM, Algonaiman R, Radhi KS, Almutairi AS, Al Zhrani MM, Mohamed A. Impact of Sprouting Process on the Protein Quality of Yellow and Red Quinoa ( Chenopodium quinoa). Molecules 2024; 29:404. [PMID: 38257317 PMCID: PMC10821386 DOI: 10.3390/molecules29020404] [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: 12/07/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
The demand for plant-based proteins has increased remarkably over the last decade. Expanding the availability and variety of plant-based protein options has shown positive potential. This study aimed to investigate the qualitative and quantitative changes in amino acids of yellow and red quinoa seeds (YQ and RQ) during a 9-day germination period. The results showed that the germination process led to an increase in the total amino acids by 7.43% and 14.36% in the YQ and RQ, respectively. Both varieties exhibited significant (p < 0.05) increases in non-essential and essential amino acids, including lysine, phenylalanine, threonine, and tyrosine. The content of non-essential amino acids nearly reached the standard values found in chicken eggs. These results were likely attributed to the impact of the germination process in increasing enzymes activity and decreasing anti-nutrient content (e.g., saponins). A linear relationship between increased seeds' hydration and decreased saponins content was observed, indicating the effect of water absorption in changing the chemical composition of the plant. Both sprouts showed positive germination progression; however, the sprouted RQ showed a higher germination rate than the YQ (57.67% vs. 43.33%, respectively). Overall, this study demonstrates that germination is a promising technique for enhancing the nutritional value of quinoa seeds, delivering sprouted quinoa seeds as a highly recommended source of high-protein grains with notable functional properties.
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Affiliation(s)
- Hassan Barakat
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah 51452, Saudi Arabia
- Department of Food Technology, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - Maryam M. Al-Qabba
- Maternity and Children Hospital, Qassim Health Cluster, Ministry of Health, Buraydah 52384, Saudi Arabia;
| | - Raya Algonaiman
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah 51452, Saudi Arabia
| | - Khadija S. Radhi
- Department of Food Science and Nutrition, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Abdulkarim S. Almutairi
- Al Rass General Hospital, Qassim Health Cluster, Ministry of Health, Ibn Sina Street, King Khalid District, Al Rass 58883, Saudi Arabia;
| | - Muath M. Al Zhrani
- Department of Applied Medical Science, College of Applied, Bishah University, Bishah 67714, Saudi Arabia;
| | - Ahmed Mohamed
- Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt;
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Raber J, Holden S, Kessler K, Glaeser B, McQuesten C, Chaudhari M, Stenzel F, Lenarczyk M, Leonard SW, Morré J, Choi J, Kronenberg A, Borg A, Kwok A, Stevens JF, Olsen C, Willey JS, Bobe G, Minnier J, Baker JE. Effects of photon irradiation in the presence and absence of hindlimb unloading on the behavioral performance and metabolic pathways in the plasma of Fischer rats. Front Physiol 2024; 14:1316186. [PMID: 38260101 PMCID: PMC10800373 DOI: 10.3389/fphys.2023.1316186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction: The space environment astronauts experience during space missions consists of multiple environmental challenges, including microgravity. In this study, we assessed the behavioral and cognitive performances of male Fisher rats 2 months after sham irradiation or total body irradiation with photons in the absence or presence of simulated microgravity. We analyzed the plasma collected 9 months after sham irradiation or total body irradiation for distinct alterations in metabolic pathways and to determine whether changes to metabolic measures were associated with specific behavioral and cognitive measures. Methods: A total of 344 male Fischer rats were irradiated with photons (6 MeV; 3, 8, or 10 Gy) in the absence or presence of simulated weightlessness achieved using hindlimb unloading (HU). To identify potential plasma biomarkers of photon radiation exposure or the HU condition for behavioral or cognitive performance, we performed regression analyses. Results: The behavioral effects of HU on activity levels in an open field, measures of anxiety in an elevated plus maze, and anhedonia in the M&M consumption test were more pronounced than those of photon irradiation. Phenylalanine, tyrosine, and tryptophan metabolism, and phenylalanine metabolism and biosynthesis showed very strong pathway changes, following photon irradiation and HU in animals irradiated with 3 Gy. Here, 29 out of 101 plasma metabolites were associated with 1 out of 13 behavioral measures. In the absence of HU, 22 metabolites were related to behavioral and cognitive measures. In HU animals that were sham-irradiated or irradiated with 8 Gy, one metabolite was related to behavioral and cognitive measures. In HU animals irradiated with 3 Gy, six metabolites were related to behavioral and cognitive measures. Discussion: These data suggest that it will be possible to develop stable plasma biomarkers of behavioral and cognitive performance, following environmental challenges like HU and radiation exposure.
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Affiliation(s)
- Jacob Raber
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
- Departments of Neurology, and Radiation Medicine, Division of Neuroscience ONPRC, Oregon Health & Science University, Portland, OR, United States
- College of Pharmacy, Oregon State University, Corvallis, OR, United States
| | - Sarah Holden
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Kat Kessler
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Breanna Glaeser
- Neuroscience Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Chloe McQuesten
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Mitali Chaudhari
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Fiona Stenzel
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Marek Lenarczyk
- Radiation Biosciences Laboratory, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Scott Willem Leonard
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jeffrey Morré
- Mass Spectrometry Core, Oregon State University, Corvallis, OR, United States
| | - Jaewoo Choi
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Amy Kronenberg
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Alexander Borg
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Andy Kwok
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jan Frederik Stevens
- College of Pharmacy, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Christopher Olsen
- Neuroscience Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Jeffrey S. Willey
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
- Department of Animal Sciences, Oregon State University, Corvallis, OR, United States
| | - Jessica Minnier
- Oregon Health & Science University-Portland State University School of Public Health, Knight Cancer Institute Biostatistics Shared Resource, The Knight Cardiovascular Institute, OR Health & Science University, Portland, OR, United States
| | - John E. Baker
- Neuroscience Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
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Barnard J, Roberts S, Kelly M, Lastella M, Aisbett B, Condo D. Alpha-lactalbumin and sleep: A systematic review. J Sleep Res 2024:e14141. [PMID: 38185736 DOI: 10.1111/jsr.14141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/09/2024]
Abstract
Insufficient sleep is a growing global problem, with poor sleep associated with many negative health and performance outcomes. Previous reviews investigating the effect of diet on sleep have highlighted the amino acid tryptophan as a promising sleep-promoting nutrient, with the richest food source of tryptophan, ⍺-lactalbumin, requiring further investigation. Therefore, this systematic review aimed to review the existing evidence of association between ⍺-lactalbumin and sleep. Four electronic databases (CINAHL Complete, Embase, MEDLINE Complete, and SPORTDiscus with Full Text) were searched from database inception to March 2023, with primary research articles included if they contained α-lactalbumin as an independent variable, an outcome measure of sleep or sleepiness, and participants were ≥ 18 years old. Eight studies were reviewed, with four studies recruiting athletic populations (50%) and four recruiting healthy participants (50%). Sleep or sleepiness was measured objectively in six studies (75%), with two studies employing polysomnography and four utilizing actigraphy to assess sleep. Across the studies, 20-60 g of ⍺-lactalbumin was supplemented, with five studies (63%) observing a positive association between α-lactalbumin and sleep. Sleep-onset latency was the primary sleep metric improved following evening supplementation of α-lactalbumin (≤ 3.5 hr pre-sleep), with no studies observing any negative associations with sleep. Data from this review suggest that individuals that have difficulty initiating sleep may benefit most from pre-sleep α-lactalbumin supplementation. Further research is required to establish the effect that α-lactalbumin has on sleep architecture, through the use of more comprehensive sleep analysis tools such as portable electroencephalography or polysomnography, in combination with stringent dietary controls.
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Affiliation(s)
- Jackson Barnard
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Spencer Roberts
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Monica Kelly
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
| | - Michele Lastella
- Appleton Institute for Behavioural Science, CQUniversity, Wayville, Australia
| | - Brad Aisbett
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Dominique Condo
- Centre for Sport Research (CSR), Deakin University, Burwood, Australia
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O’Connell CJ, Brown RS, Peach TM, Traubert OD, Schwierling HC, Notorgiacomo GA, Robson MJ. Strain in the Midbrain: Impact of Traumatic Brain Injury on the Central Serotonin System. Brain Sci 2024; 14:51. [PMID: 38248266 PMCID: PMC10813794 DOI: 10.3390/brainsci14010051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024] Open
Abstract
Traumatic brain injury (TBI) is a pervasive public health crisis that severely impacts the quality of life of affected individuals. Like peripheral forms of trauma, TBI results from extraordinarily heterogeneous environmental forces being imparted on the cranial space, resulting in heterogeneous disease pathologies. This has made therapies for TBI notoriously difficult to develop, and currently, there are no FDA-approved pharmacotherapies specifically for the acute or chronic treatment of TBI. TBI is associated with changes in cognition and can precipitate the onset of debilitating psychiatric disorders like major depressive disorder (MDD), generalized anxiety disorder (GAD), and post-traumatic stress disorder (PTSD). Complicating these effects of TBI, FDA-approved pharmacotherapies utilized to treat these disorders often fail to reach the desired level of efficacy in the context of neurotrauma. Although a complicated association, decades of work have linked central serotonin (5-HT) neurotransmission as being involved in the etiology of a myriad of neuropsychiatric disorders, including MDD and GAD. 5-HT is a biogenic monoamine neurotransmitter that is highly conserved across scales of biology. Though the majority of 5-HT is isolated to peripheral sites such as the gastrointestinal (GI) tract, 5-HT neurotransmission within the CNS exerts exquisite control over diverse biological functions, including sleep, appetite and respiration, while simultaneously establishing normal mood, perception, and attention. Although several key studies have begun to elucidate how various forms of neurotrauma impact central 5-HT neurotransmission, a full determination of precisely how TBI disrupts the highly regulated dynamics of 5-HT neuron function and/or 5-HT neurotransmission has yet to be conceptually or experimentally resolved. The purpose of the current review is, therefore, to integrate the disparate bodies of 5-HT and TBI research and synthesize insight into how new combinatorial research regarding 5-HT neurotransmission and TBI may offer an informed perspective into the nature of TBI-induced neuropsychiatric complications.
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Affiliation(s)
- Christopher J. O’Connell
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; (C.J.O.); (R.S.B.); (T.M.P.)
| | - Ryan S. Brown
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; (C.J.O.); (R.S.B.); (T.M.P.)
| | - Taylor M. Peach
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; (C.J.O.); (R.S.B.); (T.M.P.)
| | - Owen D. Traubert
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA;
| | - Hana C. Schwierling
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; (C.J.O.); (R.S.B.); (T.M.P.)
| | | | - Matthew J. Robson
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA; (C.J.O.); (R.S.B.); (T.M.P.)
- Neuroscience Graduate Program, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
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Helbing DL, Dommaschk EM, Danyeli LV, Liepinsh E, Refisch A, Sen ZD, Zvejniece L, Rocktäschel T, Stabenow LK, Schiöth HB, Walter M, Dambrova M, Besteher B. Conceptual foundations of acetylcarnitine supplementation in neuropsychiatric long COVID syndrome: a narrative review. Eur Arch Psychiatry Clin Neurosci 2024:10.1007/s00406-023-01734-3. [PMID: 38172332 DOI: 10.1007/s00406-023-01734-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/21/2023] [Indexed: 01/05/2024]
Abstract
Post-acute sequelae of COVID-19 can present as multi-organ pathology, with neuropsychiatric symptoms being the most common symptom complex, characterizing long COVID as a syndrome with a significant disease burden for affected individuals. Several typical symptoms of long COVID, such as fatigue, depressive symptoms and cognitive impairment, are also key features of other psychiatric disorders such as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and major depressive disorder (MDD). However, clinically successful treatment strategies are still lacking and are often inspired by treatment options for diseases with similar clinical presentations, such as ME/CFS. Acetylcarnitine, the shortest metabolite of a class of fatty acid metabolites called acylcarnitines and one of the most abundant blood metabolites in humans can be used as a dietary/nutritional supplement with proven clinical efficacy in the treatment of MDD, ME/CFS and other neuropsychiatric disorders. Basic research in recent decades has established acylcarnitines in general, and acetylcarnitine in particular, as important regulators and indicators of mitochondrial function and other physiological processes such as neuroinflammation and energy production pathways. In this review, we will compare the clinical basis of neuropsychiatric long COVID with other fatigue-associated diseases. We will also review common molecular disease mechanisms associated with altered acetylcarnitine metabolism and the potential of acetylcarnitine to interfere with these as a therapeutic agent. Finally, we will review the current evidence for acetylcarnitine as a supplement in the treatment of fatigue-associated diseases and propose future research strategies to investigate the potential of acetylcarnitine as a treatment option for long COVID.
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Affiliation(s)
- Dario Lucas Helbing
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
- German Center for Mental Health (DZPG), Site Halle, Jena, Magdeburg, Germany
- Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany
- Institute of Molecular Cell Biology, Jena University Hospital, Friedrich Schiller University Jena, 07745, Jena, Germany
| | - Eva-Maria Dommaschk
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
| | - Lena Vera Danyeli
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
- Department of Psychiatry and Psychotherapy, University Tübingen, Tübingen, Germany
| | - Edgars Liepinsh
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
- Faculty of Pharmacy, Riga Stradins University, Riga, Latvia
| | - Alexander Refisch
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
| | - Zümrüt Duygu Sen
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
| | - Liga Zvejniece
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Tonia Rocktäschel
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
- German Center for Mental Health (DZPG), Site Halle, Jena, Magdeburg, Germany
| | - Leonie Karoline Stabenow
- Institute of Molecular Cell Biology, Jena University Hospital, Friedrich Schiller University Jena, 07745, Jena, Germany
- Department of Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
| | - Helgi B Schiöth
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, 751 24, Uppsala, Sweden
| | - Martin Walter
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany
- German Center for Mental Health (DZPG), Site Halle, Jena, Magdeburg, Germany
- Center for Behavioral Brain Sciences, Magdeburg, Germany
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology, Magdeburg, Germany
- Max Planck Institute for Biological Cybernetics, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University Tübingen, Tübingen, Germany
| | - Maija Dambrova
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
- Faculty of Pharmacy, Riga Stradins University, Riga, Latvia
| | - Bianca Besteher
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Friedrich Schiller University Jena, Philosophenweg 3, 07743, Jena, Germany.
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits, Underlying Mental Health (C-I-R-C), Jena, Magdeburg, Halle, Germany.
- German Center for Mental Health (DZPG), Site Halle, Jena, Magdeburg, Germany.
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Awogbindin I, Wanklin M, Verkhratsky A, Tremblay MÈ. Microglia in Neurodegenerative Diseases. ADVANCES IN NEUROBIOLOGY 2024; 37:497-512. [PMID: 39207709 DOI: 10.1007/978-3-031-55529-9_27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Neurodegenerative diseases are manifested by a progressive death of neural cells, resulting in the deterioration of central nervous system (CNS) functions, ultimately leading to specific behavioural and cognitive symptoms associated with affected brain regions. Several neurodegenerative disorders are caused by genetic variants or mutations, although the majority of cases are sporadic and linked to various environmental risk factors, with yet an unknown aetiology. Neuroglial changes are fundamental and often lead to the pathophysiology of neurodegenerative diseases. In particular, microglial cells, which are essential for maintaining CNS health, become compromised in their physiological functions with the exposure to environmental risk factors, genetic variants or mutations, as well as disease pathology. In this chapter, we cover the contribution of neuroglia, especially microglia, to several neurodegenerative diseases, including Nasu-Hakola disease, Parkinson's disease, amyotrophic lateral sclerosis, Alzheimer's disease, Huntington's disease, infectious disease-associated neurodegeneration, and metal-precipitated neurodegeneration. Future research perspectives for the field pertaining to the therapeutic targeting of microglia across these disease conditions are also discussed.
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Affiliation(s)
- Ifeoluwa Awogbindin
- Department of Biochemistry, Neuroimmunology Group, Molecular Drug Metabolism and Toxicology Laboratory, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Division of Medical Sciences, Medical Sciences Building, University of Victoria, Victoria, BC, Canada
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, BC, Canada
| | - Michael Wanklin
- Division of Medical Sciences, Medical Sciences Building, University of Victoria, Victoria, BC, Canada
| | - Alexei Verkhratsky
- Faculty of Life Sciences, The University of Manchester, Manchester, UK.
- Department of Neurosciences, University of the Basque Country, Leioa, Bizkaia, Spain.
- Department of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China.
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.
| | - Marie-Ève Tremblay
- Division of Medical Sciences, Medical Sciences Building, University of Victoria, Victoria, BC, Canada.
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, BC, Canada.
- Axe neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec City, QC, Canada.
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada.
- Department of Molecular Medicine, Université Laval, Pavillon Ferdinand-Vandry, Québec City, QC, Canada.
- Department of Biochemistry and Molecular Biology, The University of British Columbia, Life Sciences Center, Vancouver, BC, Canada.
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Zhang Y, Zheng T, Ma D, Shi P, Zhang H, Li J, Sun Z. Probiotics Bifidobacterium lactis M8 and Lactobacillus rhamnosus M9 prevent high blood pressure via modulating the gut microbiota composition and host metabolic products. mSystems 2023; 8:e0033123. [PMID: 37855616 PMCID: PMC10734487 DOI: 10.1128/msystems.00331-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/24/2023] [Indexed: 10/20/2023] Open
Abstract
IMPORTANCE Elevated blood pressure affects 40% of the adult population, which accounts for high cardiovascular disease risk and further high mortality yearly. The global understanding of the gut microbiome for hypertension may provide important insights into the prevention. Bifidobacterium lactis M8 and Lactobacillus rhamnosus M9 originated from human breast milk, were able to decrease blood pressure, and modified metabolites in a high fructose-induced elevated blood pressure mouse model. Moreover, we found there was a close relationship between unexplored gut microbes and elevated blood pressure. Also, subsequently, the cross-link was explored among gut microbes, metabolites, and some metabolic pathways in gut microbial environment through introducing novel prediction methodology and bioinformatic analysis. It allowed us to hypothesize that probiotics can prevent elevated blood pressure via gut microbiota and related metabolism.Thus, utilization of dietary strategies (such as probiotics) to maintain the blood pressure level is of crucial importance.
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Affiliation(s)
- Yong Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Inner Mongolia Agricultural University, Huhhot, China
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing (USTB), Beijing, China
| | - Tingting Zheng
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China
| | - Da Ma
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Inner Mongolia Agricultural University, Huhhot, China
| | - Peng Shi
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Inner Mongolia Agricultural University, Huhhot, China
| | - Jun Li
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong, China
- School of Data Science, City University of Hong Kong, Hong Kong, China
| | - Zhihong Sun
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture, Inner Mongolia Agricultural University, Huhhot, China
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37
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Launay JM, Delorme R, Pagan C, Callebert J, Leboyer M, Vodovar N. Impact of IDO activation and alterations in the kynurenine pathway on hyperserotonemia, NAD + production, and AhR activation in autism spectrum disorder. Transl Psychiatry 2023; 13:380. [PMID: 38071324 PMCID: PMC10710433 DOI: 10.1038/s41398-023-02687-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 11/15/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Hyperserotonemia is the most replicated biochemical anomaly associated with autism spectrum disorder (ASD) and has been reported in 35-46% of individuals with ASD. Serotonin is synthesised from the essential amino acid tryptophan (TRP). However, the main catabolic route of TRP is the kynurenine pathway (KP), which competes with serotonin synthesis when indoleamine dioxygenase (IDO) is activated. Using the same cohort of individuals with ASD, we used to report extensive studies of the serotonin/melatonin pathway, and found increased kynurenine (KYN), suggesting IDO activation in 58.7% of individuals with ASD (159/271), supported by a strong negative correlation between KYN/TRP ratio and miR-153-3p plasma levels, which negatively regulates IDO. IDO activation was associated with normoserotonemia, suggesting that IDO activation could mask hyperserotonemia which meant that hyperserotonemia, if not masked by IDO activation, could be present in ~94% of individuals with ASD. We also identified several KP alterations, independent of IDO status. We observed a decrease in the activity of 3-hydroxyanthranilate dioxygenase which translated into the accumulation of the aryl hydrocarbon receptor (AhR) selective ligand cinnabarinic acid, itself strongly positively correlated with the AhR target stanniocalcin 2. We also found a deficit in NAD+ production, the end-product of the KP, which was strongly correlated with plasma levels of oxytocin used as a stereotypical neuropeptide, indicating that regulated neuropeptide secretion could be limiting. These results strongly suggest that individuals with ASD exhibit low-grade chronic inflammation that is mediated in most cases by chronic AhR activation that could be associated with the highly prevalent gastrointestinal disorders observed in ASD, and explained IDO activation in ~58% of the cases. Taken together, these results extend biochemical anomalies of TRP catabolism to KP and posit TRP catabolism as a possible major component of ASD pathophysiology.
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Affiliation(s)
| | - Richard Delorme
- Université Paris Cité and Child and Adolescent Psychiatry, Robert Debré Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Cécile Pagan
- Service de Biochimie et Biologie Moléculaire, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, 69500, Bron, France
| | - Jacques Callebert
- Université Paris Cité and Inserm UMR-S 942 MASCOT, Paris, France
- Department of Biochemistry, Hôpital Lariboisière - Fernand Widal, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marion Leboyer
- Université Paris Est Créteil and Inserm U955, IMRB, Translational Neuropsychiatry, Créteil, France
- AP-HP, DMU IMPACT, FHU ADAPT, Hôpitaux Universitaires Henri Mondor, Créteil, France
- Fondation FondaMental, Créteil, France
| | - Nicolas Vodovar
- Université Paris Cité and Inserm UMR-S 942 MASCOT, Paris, France.
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Yassin W, Hoftman GD, Bergen SE, del Re EC. Editorial: Diagnostic and prognostic brain-based biomarkers in psychosis spectrum. Front Psychiatry 2023; 14:1332447. [PMID: 38076681 PMCID: PMC10703481 DOI: 10.3389/fpsyt.2023.1332447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 02/12/2024] Open
Affiliation(s)
- Walid Yassin
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Gil D. Hoftman
- Department of Psychiatry, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, United States
| | - Sarah E. Bergen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
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Gomez-Gomez A, Martin BMS, Haro N, Pozo OJ. Determination of well-being-related markers in nails by liquid chromatography tandem mass spectrometry. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115586. [PMID: 37897979 DOI: 10.1016/j.ecoenv.2023.115586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 09/27/2023] [Accepted: 10/11/2023] [Indexed: 10/30/2023]
Abstract
Well-being is a multifactorial positive state that is highly influenced by some endogenous molecules that control happiness and euphoric feelings. These molecules, e.g., neurotransmitters, hormones and their derivatives, play a crucial role in metabolism and may be referred to as "well-being-related markers". The deregulation of well-being-related markers can lead to organism malfunctions and life-threatening states. In this research, we aimed to evaluate the potential of nails for the chronic production of several well-being-related markers. For this purpose, we developed an LCMS /MS-based method for the determination of 10 well-being-related markers, including melatonin, serotonin, cortisol, kynurenine and several precursors and metabolites. The method was optimized regarding different analytical steps: required sample amount, extraction time, number of required extractions, preconcentration, injection volume and MS conditions. Method validation was performed by two different approaches: (i) using surrogate nail matrix and (ii) using authentic nail samples by standard additions. The method was found to be linear in the expected endogenous range and sensitive enough to determine the low endogenous concentration levels in nails. Accuracy and precision were appropriate in both validation approaches. As proof of concept, the method was used (i) to correlate fingernail and toenail levels for all metabolites in 22 volunteers, (ii) to establish the endogenous concentration range of all metabolites in females (n = 50) and males (n = 34) and (iii) to correlate the metabolite levels with age. For some metabolites, the calculated ranges have been reported for the first time. In summary, the present strategy to evaluate well-being-related markers in nails may be a useful tool for the evaluation of the production of these important compounds with high potential for a wide range of clinical purposes.
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Affiliation(s)
- Alex Gomez-Gomez
- Applied Metabolomics Research Group, Hospital del Mar Research Institute, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Blanca Montero-San Martin
- Laboratory Medicine, Arnau de Vilanova University Hospital, Alcalde Rovira Roure, 80, 25198 Lleida, Spain
| | - Noemí Haro
- Applied Metabolomics Research Group, Hospital del Mar Research Institute, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Oscar J Pozo
- Applied Metabolomics Research Group, Hospital del Mar Research Institute, Doctor Aiguader 88, 08003 Barcelona, Spain.
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Li ML, Sun SP, Sun K, Lv B, Fan YH. Role of tryptophan metabolism in inflammatory bowel disease. Shijie Huaren Xiaohua Zazhi 2023; 31:896-903. [DOI: 10.11569/wcjd.v31.i21.896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/08/2023] Open
Abstract
Inflammatory bowel disease (IBD) is comprised of ulcerative colitis and Crohn's disease, the pathogenesis of which is closely related to intestinal flora disorders. Abnormalities in the intestinal microenvironment caused by intestinal flora disorders affect amino acid metabolism. Tryptophan is an essential amino acid, and its metabolites are involved in the regulation of immunity, neuronal function, intestinal homeostasis, etc. The development of IBD disease is accompanied by tryptophan deficiency or metabolic abnormalities. This review focuses on the relationship between the intestinal flora metabolite tryptophan and its metabolites and the occurrence and development of IBD disease, and provides new ideas for future diagnostic methods for predicting IBD disease activity and protocols for treating IBD.
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Affiliation(s)
- Meng-Lin Li
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine, Hangzhou 310000, Zhejiang Province, China
| | - Shao-Peng Sun
- Zhejiang Provincial Key Laboratory of Pathophysiology of Gastrointestinal Diseases, Hangzhou 310053, Zhejiang Province, China
| | - Ke Sun
- Department of Nephrology, The First Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine, Hangzhou 310000, Zhejiang Province, China
| | - Bin Lv
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine, Hangzhou 310000, Zhejiang Province, China
| | - Yi-Hong Fan
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine, Hangzhou 310000, Zhejiang Province, China
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Li X, Fu B, Zhao C, Hu J, Zhang X, Fu Y, She X, Gu C, Cheng M, Wang F, Song X, Dai J, Yin J, Fu Y, Zheng P, Wu F, Zhu Y, Ma K, Gao X, Wang M, Zeng Q, Cui B. Early-life noise exposure causes cognitive impairment in a sex-dependent manner by disrupting homeostasis of the microbiota-gut-brain axis. Brain Behav Immun 2023; 114:221-239. [PMID: 37648006 DOI: 10.1016/j.bbi.2023.08.021] [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: 04/24/2023] [Revised: 08/01/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023] Open
Abstract
Epidemiological investigations show that noise exposure in early life is associated with health and cognitive impairment. The gut microbiome established in early life plays a crucial role in modulating developmental processes that subsequently affect brain function and behavior. Here, we examined the impact of early-life exposure to noise on cognitive function in adolescent rats by analyzing the gut microbiome and metabolome to elucidate the underlying mechanisms. Chronic noise exposure during early life led to cognitive deficits, hippocampal injury, and neuroinflammation. Early-life noise exposure showed significant difference on the composition and function of the gut microbiome throughout adolescence, subsequently causing axis-series changes in fecal short-chain fatty acid (SCFA) metabolism and serum metabolome profiles, as well as dysregulation of endothelial tight junction proteins, in both intestine and brain. We also observed sex-dependent effects of microbiota depletion on SCFA-related beneficial bacteria in adolescence. Experiments on microbiota transplantation and SCFA supplementation further confirmed the role of intestinal bacteria and related SCFAs in early-life noise-exposure-induced impairments in cognition, epithelial integrity, and neuroinflammation. Overall, these results highlight the homeostatic imbalance of microbiota-gut-brain axis as an important physiological response toward environmental noise during early life and reveals subtle differences in molecular signaling processes between male and female rats.
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Affiliation(s)
- Xiaofang Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; School of Public Health and Management, Binzhou Medical University, Yantai 264003, China
| | - Bo Fu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Chunli Zhao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; School of Public Health and Management, Binzhou Medical University, Yantai 264003, China
| | - Junjie Hu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xinyao Zhang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Yiming Fu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xiaojun She
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Cui Gu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Mengzhu Cheng
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Fenghan Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xiaoqiong Song
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Jie Dai
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Jiayi Yin
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Yu Fu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Pengfang Zheng
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Fangshan Wu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Yingwen Zhu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Kefeng Ma
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xiujie Gao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Miao Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Qiang Zeng
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Bo Cui
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; School of Public Health and Management, Binzhou Medical University, Yantai 264003, China.
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Chu CH, Chen JS, Chan YL, Lu WJ, Huang YT, Mao PC, Sze CI, Sun HS. TIAM2S-positive microglia enhance inflammation and neurotoxicity through soluble ICAM-1-mediated immune priming. FASEB J 2023; 37:e23242. [PMID: 37801065 DOI: 10.1096/fj.202300462rr] [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: 03/10/2023] [Revised: 09/05/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023]
Abstract
TIAM Rac1-associated GEF 2 short form (TIAM2S) as an oncoprotein alters the immunity of peripheral immune cells to construct an inflammatory tumor microenvironment. However, its role in the activation of microglia, the primary innate immune cells of the brain, and neuroinflammation remains unknown. This study investigated the mechanism underlying TIAM2S shapes immune properties of microglia to facilitate neuron damage. Human microglial clone 3 cell line (HMC3) and human brain samples were applied to determine the presence of TIAM2S in microglia by western blots and double immunostaining. Furthermore, TIAM2S transgenic mice combined with multiple reconstituted primary neuron-glial culture systems and a cytokine array were performed to explore how TIAM2S shaped immune priming of microglia and participated in lipopolysaccharide (LPS)-induced neuron damage. TIAM2S protein was detectable in HMC3 cells and presented in a small portion (~11.1%) of microglia in human brains referred to as TIAM2S-positive microglia. With the property of secreted soluble factor-mediated immune priming, TIAM2S-positive microglia enhanced LPS-induced neuroinflammation and neural damage in vivo and in vitro. The gain- and loss-of-function experiments showed soluble intercellular adhesion molecule-1 (sICAM-1) participated in neurotoxic immune priming of TIAM2S+ microglia. Together, this study demonstrated a novel TIAM2S-positive microglia subpopulation enhances inflammation and neurotoxicity through sICAM-1-mediated immune priming.
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Affiliation(s)
- Chun-Hsien Chu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jia-Shing Chen
- School of Medicine for International Students, I-Shou University, Kaohsiung, Taiwan
| | - Ya-Ling Chan
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Jen Lu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Te Huang
- Department of Geriatrics and Gerontology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Pin-Cheng Mao
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chun-I Sze
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - H Sunny Sun
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Paudel P, Choi JS, Prajapati R, Seong SH, Park SE, Kang WC, Ryu JH, Jung HA. In Vitro Human Monoamine Oxidase Inhibition and Human Dopamine D 4 Receptor Antagonist Effect of Natural Flavonoids for Neuroprotection. Int J Mol Sci 2023; 24:15859. [PMID: 37958841 PMCID: PMC10650131 DOI: 10.3390/ijms242115859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
Natural flavone and isoflavone analogs such as 3',4',7-trihydroxyflavone (1), 3',4',7-trihydroxyisoflavone (2), and calycosin (3) possess significant neuroprotective activity in Alzheimer's and Parkinson's disease. This study highlights the in vitro human monoamine oxidase (hMAO) inhibitory potential and functional effect of those natural flavonoids at dopamine and serotonin receptors for their possible role in neuroprotection. In vitro hMAO inhibition and enzyme kinetics studies were performed using a chemiluminescent assay. The functional effect of three natural flavonoids on dopamine and serotonin receptors was tested via cell-based functional assays followed by a molecular docking simulation to predict interactions between a compound and the binding site of the target protein. A forced swimming test was performed in the male C57BL/6 mouse model. Results of in vitro chemiluminescent assays and enzyme kinetics depicted 1 as a competitive inhibitor of hMAO-A with promising potency (IC50 value: 7.57 ± 0.14 μM) and 3 as a competitive inhibitor of hMAO-B with an IC50 value of 7.19 ± 0.32 μM. Likewise, GPCR functional assays in transfected cells showed 1 as a good hD4R antagonist. In docking analysis, these active flavonoids interacted with a determinant-interacting residue via hydrophilic and hydrophobic interactions, with low docking scores comparable to reference ligands. The post-oral administration of 1 to male C57BL/6 mice did not reduce the immobility time in the forced swimming test. The results of this study suggest that 1 and 3 may serve as effective regulators of the aminergic system via hMAO inhibition and the hD4R antagonist effect, respectively, for neuroprotection. The route of administration should be considered.
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Affiliation(s)
- Pradeep Paudel
- Invasive Insect Biocontrol and Behavior Laboratory, Beltsville Agricultural Research Center-West, USDA-ARS, Beltsville, MD 20705, USA
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea; (J.S.C.); (R.P.); (S.H.S.); (S.E.P.)
| | - Ritu Prajapati
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea; (J.S.C.); (R.P.); (S.H.S.); (S.E.P.)
| | - Su Hui Seong
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea; (J.S.C.); (R.P.); (S.H.S.); (S.E.P.)
- Natural Products Research Division, Honam National Institute of Biological Resource, Mokpo 58762, Republic of Korea
| | - Se Eun Park
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea; (J.S.C.); (R.P.); (S.H.S.); (S.E.P.)
| | - Woo-Chang Kang
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea; (W.-C.K.); (J.-H.R.)
| | - Jong-Hoon Ryu
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea; (W.-C.K.); (J.-H.R.)
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Republic of Korea
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Lee J, Kim EJ, Park GS, Kim J, Kim TE, Lee YJ, Park J, Kang J, Koo JW, Choi TY. Lactobacillus reuteri ATG-F4 Alleviates Chronic Stress-induced Anhedonia by Modulating the Prefrontal Serotonergic System. Exp Neurobiol 2023; 32:313-327. [PMID: 37927130 PMCID: PMC10628864 DOI: 10.5607/en23028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/02/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
Mental health is influenced by the gut-brain axis; for example, gut dysbiosis has been observed in patients with major depressive disorder (MDD). Gut microbial changes by fecal microbiota transplantation or probiotics treatment reportedly modulates depressive symptoms. However, it remains unclear how gut dysbiosis contributes to mental dysfunction, and how correction of the gut microbiota alleviates neuropsychiatric disorders. Our previous study showed that chronic consumption of Lactobacillus reuteri ATG-F4 (F4) induced neurometabolic alterations in healthy mice. Here, we investigated whether F4 exerted therapeutic effects on depressive-like behavior by influencing the central nervous system. Using chronic unpredictable stress (CUS) to induce anhedonia, a key symptom of MDD, we found that chronic F4 consumption alleviated CUS-induced anhedonic behaviors, accompanied by biochemical changes in the gut, serum, and brain. Serum and brain metabolite concentrations involved in tryptophan metabolism were regulated by CUS and F4. F4 consumption reduced the elevated levels of serotonin (5-HT) in the brain observed in the CUS group. Additionally, the increased expression of Htr1a, a subtype of the 5-HT receptor, in the medial prefrontal cortex (mPFC) of stressed mice was restored to levels observed in stress-naïve mice following F4 supplementation. We further demonstrated the role of Htr1a using AAV-shRNA to downregulate Htr1a in the mPFC of CUS mice, effectively reversing CUS-induced anhedonic behavior. Together, our findings suggest F4 as a potential therapeutic approach for relieving some depressive symptoms and highlight the involvement of the tryptophan metabolism in mitigating CUS-induced depressive-like behaviors through the action of this bacterium.
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Affiliation(s)
- Jiyun Lee
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Eum-Ji Kim
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
| | | | - Jeongseop Kim
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Tae-Eun Kim
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Yoo Jin Lee
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
| | - Juyi Park
- AtoGen Co., Ltd., Daejeon 34015, Korea
| | | | - Ja Wook Koo
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
| | - Tae-Yong Choi
- Emotion, Cognition, and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
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Orrico-Sanchez A, Guiard BP, Manta S, Callebert J, Launay JM, Louis F, Paccard A, Gruszczynski C, Betancur C, Vialou V, Gautron S. Organic cation transporter 2 contributes to SSRI antidepressant efficacy by controlling tryptophan availability in the brain. Transl Psychiatry 2023; 13:302. [PMID: 37775532 PMCID: PMC10542329 DOI: 10.1038/s41398-023-02596-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 09/15/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023] Open
Abstract
Selective serotonin reuptake inhibitors (SSRI) are common first-line treatments for major depression. However, a significant number of depressed patients do not respond adequately to these pharmacological treatments. In the present preclinical study, we demonstrate that organic cation transporter 2 (OCT2), an atypical monoamine transporter, contributes to the effects of SSRI by regulating the routing of the essential amino acid tryptophan to the brain. Contrarily to wild-type mice, OCT2-invalidated mice failed to respond to prolonged fluoxetine treatment in a chronic depression model induced by corticosterone exposure recapitulating core symptoms of depression, i.e., anhedonia, social withdrawal, anxiety, and memory impairment. After corticosterone and fluoxetine treatment, the levels of tryptophan and its metabolites serotonin and kynurenine were decreased in the brain of OCT2 mutant mice compared to wild-type mice and reciprocally tryptophan and kynurenine levels were increased in mutants' plasma. OCT2 was detected by immunofluorescence in several structures at the blood-cerebrospinal fluid (CSF) or brain-CSF interface. Tryptophan supplementation during fluoxetine treatment increased brain concentrations of tryptophan and, more discreetly, of 5-HT in wild-type and OCT2 mutant mice. Importantly, tryptophan supplementation improved the sensitivity to fluoxetine treatment of OCT2 mutant mice, impacting chiefly anhedonia and short-term memory. Western blot analysis showed that glycogen synthase kinase-3β (GSK3β) and mammalian/mechanistic target of rapamycin (mTOR) intracellular signaling was impaired in OCT2 mutant mice brain after corticosterone and fluoxetine treatment and, conversely, tryptophan supplementation recruited selectively the mTOR protein complex 2. This study provides the first evidence of the physiological relevance of OCT2-mediated tryptophan transport, and its biological consequences on serotonin homeostasis in the brain and SSRI efficacy.
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Affiliation(s)
| | - Bruno P Guiard
- Université Paul Sabatier, CNRS, Research Center on Animal Cognition, Toulouse, France
| | - Stella Manta
- Université Paul Sabatier, CNRS, Research Center on Animal Cognition, Toulouse, France
| | - Jacques Callebert
- Sorbonne Paris Cité, Hôpital Lariboisière, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Jean-Marie Launay
- Sorbonne Paris Cité, Hôpital Lariboisière, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Franck Louis
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Paris, France
| | - Antoine Paccard
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Paris, France
| | | | - Catalina Betancur
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Paris, France
| | - Vincent Vialou
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Paris, France.
| | - Sophie Gautron
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Paris, France.
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Herselman MF, Bobrovskaya L. The Effects of Chronic Unpredictable Mild Stress and Semi-Pure Diets on the Brain, Gut and Adrenal Medulla in C57BL6 Mice. Int J Mol Sci 2023; 24:14618. [PMID: 37834073 PMCID: PMC10572190 DOI: 10.3390/ijms241914618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Chronic stress is known to perturb serotonergic regulation in the brain, leading to mood, learning and memory impairments and increasing the risk of developing mood disorders. The influence of the gut microbiota on serotonergic regulation in the brain has received increased attention recently, justifying the investigation of the role of diet on the gut and the brain in mood disorders. Here, using a 4-week chronic unpredictable mild stress (CUMS) model in mice, we aimed to investigate the effects of a high-fat high-glycaemic index (HFD) and high-fibre fruit & vegetable "superfood" (SUP) modifications of a semi-pure AIN93M diet on behaviour, serotonin synthesis and metabolism pathway regulation in the brain and the gut, as well as the gut microbiota and the peripheral adrenal medullary system. CUMS induced anxiety-like behaviour, dysregulated the tryptophan and serotonin metabolic pathways in the hippocampus, prefrontal cortex, and colon, and altered the composition of the gut microbiota. CUMS reduced the catecholamine synthetic capacity of the adrenal glands. Differential effects were found in these parameters in the HFD and SUP diet. Thus, dietary modifications may profoundly affect the multiple dynamic systems involved in mood disorders.
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Affiliation(s)
| | - Larisa Bobrovskaya
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia;
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de Paula VRC, Pasquetti TJ, de Oliveira NTE, Tanamati W, Silveira RMF, Pozza PC. Standardized ileal digestible tryptophan and lysine affects the eating and sleeping behavior of 15-30 kg barrows. Trop Anim Health Prod 2023; 55:309. [PMID: 37731057 DOI: 10.1007/s11250-023-03734-w] [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: 02/15/2023] [Accepted: 09/12/2023] [Indexed: 09/22/2023]
Abstract
The objective of this study was to evaluate the effect of standardized ileal digestible (SID) tryptophan (Trp) and lysine (Lys) levels on eating and sleeping behavior and the respective feed intake of barrows. Sixty-four pigs, averaging 15.00 ± 1.63 kg of initial body weight, were used and distributed in a randomized blocks design, in a 4 × 4 factorial scheme, consisting of four levels of SID Trp (0.155, 0.185, 0.215, 0.245%) and four levels of SID Lys (0.972, 1.112, 1.252, and 1.392%). Behavior evaluation was performed by an instantaneous sampling using 10-min intervals during 24 h, at each 7 days (days 7, 14, and 21), and each day was divided into four times of 6 h each one (08:30-14:20, 14:30-20:20, 20:30-02:20, and 02:30-08:20 h), during all the experimental period, yielding a total of 3 × 24 h behavior recordings (72 h) × 6 10-min intervals, totalizing 432 observations per animal. Data were analyzed by classifying behavior into eating or sleeping. All these behaviors were measured in order to obtain the estimated frequency of the eating and sleeping behaviors. Changes were observed (P<0.05) for all the behavioral parameters during the starting phase. SID Trp and SID Lys showed an interactive positive effect on the estimated frequency of eating behavior, and mainly SID Trp increased the estimated frequency of the sleeping behavior of starting pigs in the nocturnal time. Pig diets with increasing levels of SID Trp and SID Lys until 0.245 and 1.392%, respectively, increased the average daily feed intake, and the interaction of the amino acids increased the estimated frequency of eating behavior during all the starting phase, and mainly the increasing levels of SID Trp increased the estimated frequency of sleeping behavior of pigs from the middle to the end of the starting phase, from 2:30 to 8:20 h.
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Affiliation(s)
- Vinicius Ricardo Cambito de Paula
- Institute of Agricultural and Environmental Sciences (ICAA), Federal University of Mato Grosso (UFMT), Av. Alexandre Ferronato, 1200, 78550-728, Sinop, Mato Grosso, Brazil
| | - Tiago Junior Pasquetti
- Department of Animal Science, State University of Maringá (UEM), Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Newton Tavares Escocard de Oliveira
- Department of Animal Science, Western Parana State University (UNIOESTE), St. Pernambuco, 1777, 85960-000, Marechal Candido Rondon, Paraná, Brazil
| | - Wesley Tanamati
- Department of Animal Science, State University of Maringá (UEM), Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Robson Mateus Freitas Silveira
- Department of Animal Science, "Luiz de Queiroz" College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, Brazil
| | - Paulo Cesar Pozza
- Department of Animal Science, State University of Maringá (UEM), Av. Colombo, 5790, 87020-900, Maringá, Paraná, Brazil.
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Wei Y, Cui X, Zhou Z, Ma Q, Xu H, Liang M. Growth, Cannibalism, and 5-TH Metabolism in Pufferfish ( Takifugu obscurus ♀ × Takifugu rubripes): The Role of Graded Levels of Dietary Tryptophan. AQUACULTURE NUTRITION 2023; 2023:6693175. [PMID: 37719925 PMCID: PMC10505084 DOI: 10.1155/2023/6693175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/14/2023] [Accepted: 08/23/2023] [Indexed: 09/19/2023]
Abstract
The objective of this study was to investigate the potential effect of graded levels of tryptophan on the growth, cannibalism, and 5-hydroxytryptpamine (5-TH) metabolism in pufferfish (Takifugu obscurus ♀ × Takifugu rubripes ♂). A 63-day feeding trial was performed wherein pufferfish were fed four diets. Three experimental diets were formulated with various levels of tryptophan based on the control diet. Four diets were named as T1, T2, T3, and T4, corresponding to 4.30, 7.80, 14.90, and 23.70 g kg-1 tryptophan of dry diet. Final body weight, weight gain, and specific growth rate were similar between the T1 and T4 groups, but exhibited a significantly increased trend compared to the T2 group. Although survival rate was not affected by various levels of dietary tryptophan, intraspecific cannibalism was significantly reduced in the group fed with highest level of tryptophan (T4). For free amino acid in brain, the concentration of tryptophan was the highest in the T3 group and the lowest in the T2 group, while phenylalanine, tyrosine, and methionine showed an opposite trend between those two groups. The levels of dietary tryptophan not only affected the expression of aromatic amino acid transporter TAT1, but also affected the expression of B0AT1, B0AT2, and 4F2hc in intestine, as well as B0AT1, y+LAT1, and LAT2 in brain. The activity of tryptophan hydroxylase (TPH) in serum increased with the increase of dietary tryptophan, and the expression of TPH1 in brain upregulated in the excessive tryptophan groups (T2, T3, and T4). MAO activity in serum as well as its gene expression in brain and intestine showed a decreased trend in the T4 group. In conclusion, excessive tryptophan (23.70 g kg-1 of dry diet, corresponding to 50.3 g kg-1 of dietary protein) in feed could mitigate cannibalistic behavior of pufferfish and promote the growth, and the reason for this effect might affect the metabolism of 5-TH in vivo.
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Affiliation(s)
- Yuliang Wei
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, 1 Wenhai Road, Shandong, Qingdao 266237, China
| | - Xishuai Cui
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Zhibing Zhou
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Qiang Ma
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Houguo Xu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, 1 Wenhai Road, Shandong, Qingdao 266237, China
| | - Mengqing Liang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, 1 Wenhai Road, Shandong, Qingdao 266237, China
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Luan Y, Wang Y, Zhang W, Duan X, Su P, Li Q, Pang Y, Gou M. Identification and characterization of tryptophan-kynurenine pathway-related genes involving lamprey (Lampetra japonica) innate immunity. FISH & SHELLFISH IMMUNOLOGY 2023; 140:108967. [PMID: 37488041 DOI: 10.1016/j.fsi.2023.108967] [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: 05/16/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 07/26/2023]
Abstract
The tryptophan-kynurenine (TRP-KYN) pathway is involved in several biological functions, including immunosuppression, inflammatory response, and tumor suppression. Six TRP-KYN pathway-related genes, tryptophan 2,3-dioxygenase (TDO), indoleamine 2,3-dioxygenase 2 (IDO2), aminoadipate aminotransferase (AADAT), glutamate oxaloacetate transaminase 2 (GOT2), kynurenine monooxygenase (KMO), and kynureninase (KYNU) have been identified and cloned from the jawless vertebrate lamprey (Lampetra japonica) to gain insights into their evolution and characterization. Expression distribution showed that the key gene Lj-TDO was highly expressed in the oral gland. Real-time quantitative PCR showed that TRP-KYN pathway-related genes were significantly overexpressed after multi-stimulation. RNA interference showed that Lj-IDO2 knockdown regulated the expression of inflammatory factors. In conclusion, our study successfully clarified the ancestral features and functions of the TRP-KYN pathway, while providing valuable insights into the involvement of this pathway in the immune responses of a jawless vertebrate.
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Affiliation(s)
- Yimu Luan
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Yaocen Wang
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Wentong Zhang
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Xuyuan Duan
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Peng Su
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Qingwei Li
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China
| | - Yue Pang
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China.
| | - Meng Gou
- College of Life Science, Liaoning Normal University, Dalian, 116081, China; Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China.
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50
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Schapira I, O'Neill MR, Russo-Savage L, Narla T, Laprade KA, Stafford JM, Ou Y. Measuring tryptophan dynamics using fast scan cyclic voltammetry at carbon fiber microelectrodes with improved sensitivity and selectivity. RSC Adv 2023; 13:26203-26212. [PMID: 37671005 PMCID: PMC10475881 DOI: 10.1039/d3ra04551j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/22/2023] [Indexed: 09/07/2023] Open
Abstract
Despite the fact that tryptophan (Trp) is an essential amino acid that humans typically obtain through diet, there are several interesting tryptophan dynamics at play in the body. Quantifying and understanding these dynamics are crucial in studies of depression, autism spectrum disorder, and other disorders that involve neurotransmitters directly synthesized from tryptophan. Here we detail the optimization of waveform parameters in fast scan cyclic voltammetry at carbon fiber microelectrodes to yield four-fold higher sensitivity and six-fold higher selectivity compared to previously reported methods. We demonstrate the utility of our method in measuring (1) exogenous Trp dynamics from administration of Trp to PC-12 cells with and without overexpression of tryptophan hydroxylase-2 and (2) endogenous Trp dynamics in pinealocyte cultures with and without stimulation via norepinephrine. We observed interesting differences in Trp dynamics in both model systems, which demonstrate that our method is indeed sensitive to Trp dynamics in different applications.
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Affiliation(s)
| | | | | | - Terdha Narla
- Department of Pharmacology, University of Vermont USA
| | | | - James M Stafford
- Neuroscience Graduate Program, University of Vermont USA
- Department of Neurological Sciences, University of Vermont USA
| | - Yangguang Ou
- Department of Chemistry, University of Vermont USA
- Neuroscience Graduate Program, University of Vermont USA
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