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Takamatsu D, Uegaki R, Okamoto M, Nakamura K, Harada M. Quantitative tyramine analysis method for Apis mellifera larvae infected with Melissococcus plutonius, the causative agent of European foulbrood. J Vet Med Sci 2024:23-0510. [PMID: 38508725 DOI: 10.1292/jvms.23-0510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Tyramine, a trace monoamine produced from tyrosine by decarboxylation and found naturally in foods, plants, and animals, is a suspected virulence factor of Melissococcus plutonius that causes European foulbrood in honey bee brood. In the present study, we developed a method for quantitative analysis of tyramine in culture medium and honey bee larvae with a limit of quantitation of 3 ng/mL and a recovery rate of >97% using Liquid Chromatography-Mass Spectrometry/Mass Spectrometry and deuterium-labeled tyramine, demonstrating for the first time that a highly virulent M. plutonius strain actually produces tyramine in infected larvae. This method will be an indispensable tool to elucidate the role of tyramine in European foulbrood pathogenesis in combination with exposure bioassays using artificially reared bee larvae.
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Affiliation(s)
- Daisuke Takamatsu
- Division of Infectious Animal Disease Research, National Institute of Animal Health, National Agriculture and Food Research Organization
- The United Graduate School of Veterinary Sciences, Gifu University
- Joint Graduate School of Veterinary Sciences, Gifu University
| | - Ryuichi Uegaki
- Department of Animal Disease Control and Prevention, National Institute of Animal Health, National Agriculture and Food Research Organization
| | - Mariko Okamoto
- Division of Infectious Animal Disease Research, National Institute of Animal Health, National Agriculture and Food Research Organization
| | - Keiko Nakamura
- Research and Business Promotion Division, Research Institute for Animal Science in Biochemistry and Toxicology
| | - Mariko Harada
- Research and Business Promotion Division, Research Institute for Animal Science in Biochemistry and Toxicology
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2
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Jahangir S, Vecstaudza J, Augurio A, Canciani E, Stipniece L, Locs J, Alini M, Serra T. Cell-Laden 3D Printed GelMA/HAp and THA Hydrogel Bioinks: Development of Osteochondral Tissue-like Bioinks. Materials (Basel) 2023; 16:7214. [PMID: 38005143 PMCID: PMC10673417 DOI: 10.3390/ma16227214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
Osteochondral (OC) disorders such as osteoarthritis (OA) damage joint cartilage and subchondral bone tissue. To understand the disease, facilitate drug screening, and advance therapeutic development, in vitro models of OC tissue are essential. This study aims to create a bioprinted OC miniature construct that replicates the cartilage and bone compartments. For this purpose, two hydrogels were selected: one composed of gelatin methacrylate (GelMA) blended with nanosized hydroxyapatite (nHAp) and the other consisting of tyramine-modified hyaluronic acid (THA) to mimic bone and cartilage tissue, respectively. We characterized these hydrogels using rheological testing and assessed their cytotoxicity with live-dead assays. Subsequently, human osteoblasts (hOBs) were encapsulated in GelMA-nHAp, while micropellet chondrocytes were incorporated into THA hydrogels for bioprinting the osteochondral construct. After one week of culture, successful OC tissue generation was confirmed through RT-PCR and histology. Notably, GelMA/nHAp hydrogels exhibited a significantly higher storage modulus (G') compared to GelMA alone. Rheological temperature sweeps and printing tests determined an optimal printing temperature of 20 °C, which remained unaffected by the addition of nHAp. Cell encapsulation did not alter the storage modulus, as demonstrated by amplitude sweep tests, in either GelMA/nHAp or THA hydrogels. Cell viability assays using Ca-AM and EthD-1 staining revealed high cell viability in both GelMA/nHAp and THA hydrogels. Furthermore, RT-PCR and histological analysis confirmed the maintenance of osteogenic and chondrogenic properties in GelMA/nHAp and THA hydrogels, respectively. In conclusion, we have developed GelMA-nHAp and THA hydrogels to simulate bone and cartilage components, optimized 3D printing parameters, and ensured cell viability for bioprinting OC constructs.
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Affiliation(s)
- Shahrbanoo Jahangir
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Jana Vecstaudza
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Adriana Augurio
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Elena Canciani
- Department of Health Sciences, Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), University of Piemonte Orientale UPO, Corso Trieste 15/A, 28100 Novara, Italy;
| | - Liga Stipniece
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, LV-1007 Riga, Latvia; (J.V.); (L.S.)
- Baltic Biomaterials Centre of Excellence Headquarters, LV-1007 Riga, Latvia
| | - Mauro Alini
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
| | - Tiziano Serra
- AO Research Institute Davos, 7270 Davos, Switzerland; (S.J.); (A.A.); (M.A.)
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3
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Blanco MG, Rayes D. How specific molecules can lead to overeating. eLife 2023; 12:e93090. [PMID: 37889153 PMCID: PMC10611429 DOI: 10.7554/elife.93090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
A molecular pathway involving compounds found in processed foods and biogenic amines increases food intake and aging in the roundworm C. elegans.
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Affiliation(s)
- María Gabriela Blanco
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), UNS–CONICETBahía BlancaArgentina
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional Del SurBahía BlancaArgentina
| | - Diego Rayes
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), UNS–CONICETBahía BlancaArgentina
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional Del SurBahía BlancaArgentina
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4
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Muthaiyan Shanmugam M, Chaudhuri J, Sellegounder D, Sahu AK, Guha S, Chamoli M, Hodge B, Bose N, Roberts C, Farrera DO, Lithgow G, Sarpong R, Galligan JJ, Kapahi P. Methylglyoxal-derived hydroimidazolone, MG-H1, increases food intake by altering tyramine signaling via the GATA transcription factor ELT-3 in Caenorhabditis elegans. eLife 2023; 12:e82446. [PMID: 37728328 PMCID: PMC10611433 DOI: 10.7554/elife.82446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/19/2023] [Indexed: 09/21/2023] Open
Abstract
The Maillard reaction, a chemical reaction between amino acids and sugars, is exploited to produce flavorful food ubiquitously, from the baking industry to our everyday lives. However, the Maillard reaction also occurs in all cells, from prokaryotes to eukaryotes, forming advanced glycation end-products (AGEs). AGEs are a heterogeneous group of compounds resulting from the irreversible reaction between biomolecules and α-dicarbonyls (α-DCs), including methylglyoxal (MGO), an unavoidable byproduct of anaerobic glycolysis and lipid peroxidation. We previously demonstrated that Caenorhabditis elegans mutants lacking the glod-4 glyoxalase enzyme displayed enhanced accumulation of α-DCs, reduced lifespan, increased neuronal damage, and touch hypersensitivity. Here, we demonstrate that glod-4 mutation increased food intake and identify that MGO-derived hydroimidazolone, MG-H1, is a mediator of the observed increase in food intake. RNAseq analysis in glod-4 knockdown worms identified upregulation of several neurotransmitters and feeding genes. Suppressor screening of the overfeeding phenotype identified the tdc-1-tyramine-tyra-2/ser-2 signaling as an essential pathway mediating AGE (MG-H1)-induced feeding in glod-4 mutants. We also identified the elt-3 GATA transcription factor as an essential upstream regulator for increased feeding upon accumulation of AGEs by partially controlling the expression of tdc-1 gene. Furthermore, the lack of either tdc-1 or tyra-2/ser-2 receptors suppresses the reduced lifespan and rescues neuronal damage observed in glod-4 mutants. Thus, in C. elegans, we identified an elt-3 regulated tyramine-dependent pathway mediating the toxic effects of MG-H1 AGE. Understanding this signaling pathway may help understand hedonistic overfeeding behavior observed due to modern AGE-rich diets.
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Affiliation(s)
| | | | | | | | - Sanjib Guha
- The Buck Institute for Research on AgingNovatoUnited States
| | - Manish Chamoli
- The Buck Institute for Research on AgingNovatoUnited States
| | - Brian Hodge
- The Buck Institute for Research on AgingNovatoUnited States
| | - Neelanjan Bose
- The Buck Institute for Research on AgingNovatoUnited States
| | - Charis Roberts
- Department of Chemistry, University of California, BerkeleyBerkeleyUnited States
| | - Dominique O Farrera
- Department of Pharmacology and Toxicology, College of Pharmacy, University of ArizonaTucsonUnited States
| | - Gordon Lithgow
- The Buck Institute for Research on AgingNovatoUnited States
| | - Richmond Sarpong
- Department of Chemistry, University of California, BerkeleyBerkeleyUnited States
| | - James J Galligan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of ArizonaTucsonUnited States
| | - Pankaj Kapahi
- The Buck Institute for Research on AgingNovatoUnited States
- Department of Urology, University of California, San FranciscoSan FranciscoUnited States
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5
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Zhang Y, Zhang Y, Shen C, Hao S, Duan W, Liu L, Wei H. Ionizing radiation alters functional neurotransmission in Drosophila larvae. Front Cell Neurosci 2023; 17:1151489. [PMID: 37484822 PMCID: PMC10357008 DOI: 10.3389/fncel.2023.1151489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Patients undergoing cranial ionizing radiation therapy for brain malignancies are at increased risk of long-term neurocognitive decline, which is poorly understood and currently untreatable. Although the molecular pathogenesis has been intensively researched in many organisms, whether and how ionizing radiation alters functional neurotransmission remains unknown. This is the first study addressing physiological changes in neurotransmission after ionizing radiation exposure. Methods To elucidate the cellular mechanisms of radiation damage, using calcium imaging, we analyzed the effects of ionizing radiation on the neurotransmitter-evoked responses of prothoracicotropic hormone (PTTH)-releasing neurons in Drosophila larvae, which play essential roles in normal larval development. Results The neurotransmitters dopamine and tyramine decreased intracellular calcium levels of PTTH neurons in a dose-dependent manner. In gamma irradiated third-instar larvae, a dose of 25 Gy increased the sensitivity of PTTH neurons to dopamine and tyramine, and delayed development, possibly in response to abnormal functional neurotransmission. This irradiation level did not affect the viability and arborization of PTTH neurons and successful survival to adulthood. Exposure to a 40-Gy dose of gamma irradiation decreased the neurotransmitter sensitivity, physiological viability and axo-dendritic length of PTTH neurons. These serious damages led to substantial developmental delays and a precipitous reduction in the percentage of larvae that survived to adulthood. Our results demonstrate that gamma irradiation alters neurotransmitter-evoked responses, indicating synapses are vulnerable targets of ionizing radiation. Discussion The current study provides new insights into ionizing radiation-induced disruption of physiological neurotransmitter signaling, which should be considered in preventive therapeutic interventions to reduce risks of neurological deficits after photon therapy.
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Affiliation(s)
- Yi Zhang
- North China Research Institute of Electro-Optics, Beijing, China
| | - Yihao Zhang
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing, China
| | - Cong Shen
- China Electronics Technology Group Corporation No. 45 Research Institute, Beijing, China
| | - Shun Hao
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing, China
| | - Wenlan Duan
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing, China
| | - Li Liu
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing, China
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Hongying Wei
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing, China
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6
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Barbero F, Mannino G, Casacci LP. The Role of Biogenic Amines in Social Insects: With a Special Focus on Ants. Insects 2023; 14:386. [PMID: 37103201 PMCID: PMC10142254 DOI: 10.3390/insects14040386] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Eusociality represents the higher degree of interaction in insects. This complex social structure is maintained through a multimodal communication system that allows colony members to be flexible in their responses, fulfilling the overall society's needs. The colony plasticity is supposedly achieved by combining multiple biochemical pathways through the neuromodulation of molecules such as biogenic amines, but the mechanisms through which these regulatory compounds act are far from being fully disentangled. Here, we review the potential function of major bioamines (dopamine, tyramine, serotine, and octopamine) on the behavioral modulation of principal groups of eusocial Hymenoptera, with a special focus on ants. Because functional roles are species- and context-dependent, identifying a direct causal relationship between a biogenic amine variation and behavioral changes is extremely challenging. We also used a quantitative and qualitative synthesis approach to summarize research trends and interests in the literature related to biogenic amines of social insects. Shedding light on the aminergic regulation of behavioral responses will pave the way for an entirely new approach to understanding the evolution of sociality in insects.
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Affiliation(s)
- Francesca Barbero
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy;
| | - Giuseppe Mannino
- Department of Life Sciences and Systems Biology, University of Turin, Via Gioacchino Quarello 15/A, 10135 Turin, Italy;
| | - Luca Pietro Casacci
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy;
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Domínguez M, Oliver S, Garriga R, Muñoz E, Cebolla VL, de Marcos S, Galbán J. Tectomer-Mediated Optical Nanosensors for Tyramine Determination. Sensors (Basel) 2023; 23:2524. [PMID: 36904726 PMCID: PMC10007293 DOI: 10.3390/s23052524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The development of optical sensors for in situ testing has become of great interest in the rapid diagnostics industry. We report here the development of simple, low-cost optical nanosensors for the semi-quantitative detection or naked-eye detection of tyramine (a biogenic amine whose production is commonly associated with food spoilage) when coupled to Au(III)/tectomer films deposited on polylactic acid (PLA) supports. Tectomers are two-dimensional oligoglycine self-assemblies, whose terminal amino groups enable both the immobilization of Au(III) and its adhesion to PLA. Upon exposure to tyramine, a non-enzymatic redox reaction takes place in which Au(III) in the tectomer matrix is reduced by tyramine to gold nanoparticles, whose reddish-purple color depends on the tyramine concentration and can be identified by measuring the RGB coordinates (Red-Green-Blue coordinates) using a smartphone color recognition app. Moreover, a more accurate quantification of tyramine in the range from 0.048 to 10 μM could be performed by measuring the reflectance of the sensing layers and the absorbance of the characteristic 550 nm plasmon band of the gold nanoparticles. The relative standard deviation (RSD) of the method was 4.2% (n = 5) with a limit of detection (LOD) of 0.014 μM. A remarkable selectivity was achieved for tyramine detection in the presence of other biogenic amines, especially histamine. This methodology, based on the optical properties of Au(III)/tectomer hybrid coatings, is promising for its application in food quality control and smart food packaging.
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Affiliation(s)
- Mario Domínguez
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA University of Zaragoza-CSIC), 50009 Zaragoza, Spain
| | - Sofía Oliver
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA University of Zaragoza-CSIC), 50009 Zaragoza, Spain
| | - Rosa Garriga
- Departamento de Química-Física, University of Zaragoza, 50009 Zaragoza, Spain
| | - Edgar Muñoz
- Instituto de Carboquímica ICB-CSIC, 50018 Zaragoza, Spain
| | | | - Susana de Marcos
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA University of Zaragoza-CSIC), 50009 Zaragoza, Spain
| | - Javier Galbán
- Nanosensors and Bioanalytical Systems (N&SB), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA University of Zaragoza-CSIC), 50009 Zaragoza, Spain
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8
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Hardege I, Morud J, Courtney A, Schafer WR. A Novel and Functionally Diverse Class of Acetylcholine-Gated Ion Channels. J Neurosci 2023; 43:1111-1124. [PMID: 36604172 PMCID: PMC9962794 DOI: 10.1523/jneurosci.1516-22.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/02/2022] [Accepted: 12/14/2022] [Indexed: 01/07/2023] Open
Abstract
Fast cholinergic neurotransmission is mediated by acetylcholine-gated ion channels; in particular, excitatory nicotinic acetylcholine receptors play well established roles in virtually all nervous systems. Acetylcholine-gated inhibitory channels have also been identified in some invertebrate phyla, yet their roles in the nervous system are less well understood. We report the existence of multiple new inhibitory ion channels with diverse ligand activation properties in Caenorhabditis elegans We identify three channels, LGC-40, LGC-57, and LGC-58, whose primary ligand is choline rather than acetylcholine, as well as the first evidence of a truly polymodal channel, LGC-39, which is activated by both cholinergic and aminergic ligands. Using our new ligand-receptor pairs we uncover the surprising extent to which single neurons in the hermaphrodite nervous system express both excitatory and inhibitory channels, not only for acetylcholine but also for the other major neurotransmitters. The results presented in this study offer new insight into the potential evolutionary benefit of a vast and diverse repertoire of ligand-gated ion channels to generate complexity in an anatomically compact nervous system.SIGNIFICANCE STATEMENT Here we describe the diversity of cholinergic signaling in the nematode Caenorhabditis elegans We identify and characterize a novel family of ligand-gated ion channels and show that they are preferentially gated by choline rather than acetylcholine and expressed broadly in the nervous system. Interestingly, we also identify one channel gated by chemically diverse ligands including acetylcholine and aminergic ligands. By using our new knowledge of these ligand-gated ion channels, we built a model to predict the synaptic polarity in the C. elegans connectome. This model can be used for generating hypotheses on neural circuit function.
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Affiliation(s)
- Iris Hardege
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
| | - Julia Morud
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
| | - Amy Courtney
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
| | - William R Schafer
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
- Department of Biology, KU Leuven, 3000 Leuven, Belgium
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Zhai Y, Zhao X, Ma Z, Guo X, Wen Y, Yang H. Au Nanoparticles (NPs) Decorated Co Doped ZnO Semiconductor (Co 400-ZnO/Au) Nanocomposites for Novel SERS Substrates. Biosensors (Basel) 2022; 12:1148. [PMID: 36551115 PMCID: PMC9775326 DOI: 10.3390/bios12121148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Au nanoparticles were decorated on the surface of Co-doped ZnO with a certain ratio of Co2+/Co3+ to obtain a novel semiconductor-metal composite. The optimal substrate, designated as Co400-ZnO/Au, is beneficial to the promotion of separation efficiency of electron and hole in a semiconductor excited under visible laser exposure, which the enhances localized surface plasmon resonance (LSPR) of the Au nanoparticles. As an interesting finding, during Co doping, quantum dots of ZnO are generated, which strengthen the strong semiconductor metal interaction (SSSMI) effect. Eventually, the synergistic effect effectively advances the surface enhancement Raman scattering (SERS) performance of Co400-ZnO/Au composite. The enhancement mechanism is addressed in-depth by morphologic characterization, UV-visible, X-ray diffraction, photoluminescence, X-ray photoelectron spectroscopy, density functional theory, and finite difference time domain (FDTD) simulations. By using Co400-ZnO/Au, SERS detection of Rhodamine 6G presents a limit of detection (LOD) of 1 × 10-9 M. As a real application, the Co400-ZnO/Au-based SERS method is utilized to inspect tyramine in beer and the detectable concentration of 1 × 10-8 M is achieved. In this work, the doping strategy is expected to realize a quantum effect, triggering a SSSMI effect for developing promising SERS substrates in future.
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10
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Ding P, Wei Q, Tian N, Ding X, Wang L, Wang B, Okoro OV, Shavandi A, Nie L. Enzymatically crosslinked hydrogel based on tyramine modified gelatin and sialylated chitosan. Biomed Mater 2022; 18. [PMID: 36322975 DOI: 10.1088/1748-605x/ac9f90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/02/2022] [Indexed: 11/16/2022]
Abstract
The enzymatically crosslinked hydrogel could replicate the cellular microenvironment for biomedical applications. In the present study, to improve the cytocompatibility of chitosan (CS), sialic acid (SA) was introduced to CS to synthesize sialylated CS (CS-SA), and the tyramine (TA) was grafted to gelatin (G) to obtain TA modified gelatin (G-TA). The successful synthesis of CS-SA and G-TA was confirmed using1H NMR and UV-Vis absorption spectra. The interpenetrating polymer networks G-TA/CS-SA (GC) hydrogel was then fabricated via blending G-TA and CS-SA solutions and crosslinked using horseradish peroxidase. The storage modulus (G') of the fabricated GC hydrogels with different ratios of G-TA/CS-SA greatly varied during the formation and strain of hydrogels. With the increase of CS-SA concentration from 0% to 2%, the storage modulus of GC hydrogels was also observed to decrease from 1500 Pa to 101 Pa; the water uptake capacity of GC hydrogels increased from 1000% to 4500%. Additionally, the cell counting kit-8 and fluorescent images demonstrated the excellent cytocompatibility of GC hydrogels after culturing with NIH 3T3 cells. The obtained results indicated that the fabricated GC hydrogels might have potential in biomedical fields, such as wound dressing.
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Affiliation(s)
- Peng Ding
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China.,Tea Plant Biology Key Laboratory of Henan Province, Xinyang 464000, People's Republic of China
| | - Qianqian Wei
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Ning Tian
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Xiaoyue Ding
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Ling Wang
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Bin Wang
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China
| | - Oseweuba Valentine Okoro
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Amin Shavandi
- Université libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
| | - Lei Nie
- School of Life Science, Xinyang Normal University, Xinyang 464000, People's Republic of China.,Université libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium
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11
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Zhang Y, Shan B, Gong J, Hu Y. Mechanism of biogenic amine synthesis of Enterococcus faecium isolated from Sanchun ham. Food Sci Nutr 2022; 10:2036-2049. [PMID: 35702279 PMCID: PMC9179149 DOI: 10.1002/fsn3.2820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/19/2023] Open
Abstract
Sanchuan ham, produced in Yunnan, China, is food with ethnic characteristics favored by consumers. However, it can contain biogenic amines such as tyramine that are harmful to health, and the synthesis mechanism of biogenic amines in Sanchuan ham is not clear. This study focuses on the regulation of biogenic amine synthesis by quorum sensing. We used high‐performance liquid chromatography to detect the content of biogenic amine in different kinds of ham and found that the content of biogenic amine in Sanchuan ham was higher than that in others. Tyramine‐producing strain isolated from Sanchuan ham was identified as Enterococcus faecium. By monitoring the growth and tyramine synthesis of Enterococcus faecium under cultured conditions, the results found that high temperature and low salt increased tyramine production by E. faecium. After seven exogenous amino acids were applied to E. faecium, only tyrosine could promote the production of tyramine in E. faecium, and tyramine could not be synthesized in E. faecium until a certain amount was reached, indicating the presence of microbial quorum sensing signal molecules in the synthesis of tyramine in E. faecium. Untargeted metabolomics analysis of the differential metabolites produced by E. faecium showed that the contents of some peptides, especially alanyl‐leucine, were significantly increased. Further experiments with synthetic alanyl‐leucine illustrated that alanyl‐leucine activated the expression of tyrosine decarboxylase (tyrDC), thereby regulating the synthesis of tyramine by E. faecium. Alanyl‐leucine acted as quorum sensing signal molecules for biogenic amine synthesis by E. faecium, which provided a theoretical basis for reducing biogenic amine accumulation in ham. It is beneficial to control the content of biogenic amines in ham in the future.
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Affiliation(s)
- Yunhe Zhang
- Collage of Food Science and Technology Yunnan Agricultural University Kunming China
| | - Bo Shan
- Collage of Food Science and Technology Yunnan Agricultural University Kunming China
| | - Jiashun Gong
- Collage of Food Science and Technology Yunnan Agricultural University Kunming China
| | - Yongjin Hu
- Collage of Food Science and Technology Yunnan Agricultural University Kunming China
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12
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Van den Eynde V, Gillman PK, Blackwell BB. The Prescriber's Guide to the MAOI Diet-Thinking Through Tyramine Troubles. Psychopharmacol Bull 2022; 52:73-116. [PMID: 35721816 PMCID: PMC9172554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This review article features comprehensive discussions on the dietary restrictions issued to patients taking a classic monoamine oxidase inhibitor (phenelzine, tranylcypromine, isocarboxazid), or high-dose (oral or transdermal) selegiline. It equips doctors with the knowledge to explain to their patients which dietary precautions are necessary, and why that is so: MAOIs alter the capacity to metabolize certain monoamines, like tyramine, which causes dose-related blood pressure elevations. Modern food production and hygiene standards have resulted in large reductions of tyramine concentrations in most foodstuffs and beverages, including many cheeses. Thus, the risk of consequential blood pressure increases is considerably reduced-but some caution remains warranted. The effects of other relevant biogenic amines (histamine, dopamine), and of the amino acids L-dopa and L-tryptophan are also discussed. The tables of tyramine data usually presented in MAOI diet guides are by nature unhelpful and imprecise, because tyramine levels vary widely within foods of the same category. For this reason, it is vital that doctors understand the general principles outlined in this guide; that way, they can tailor their instructions and advice to the individual, to his/her lifestyle and situation. This is important because the pressor response is characterized by significant interpatient variability. When all factors are weighed and balanced, the conclusion is that the MAOI diet is not all that difficult. Minimizing the intake of the small number of risky foods is all that is required. Many patients may hardly need to change their diet at all.
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Affiliation(s)
- Vincent Van den Eynde
- Van den Eynde, External Research Consultant for PsychoTropical Research, NeuraWell Therapeutics, Aristo Pharma GmbH. Gillman, Director of PsychoTropical Research and MAOI Expert Group Convener. Blackwell, Retired Professor and Chair of Psychiatry at the Milwaukee Campus of the University of Wisconsin School of Medicine
| | - Peter Kenneth Gillman
- Van den Eynde, External Research Consultant for PsychoTropical Research, NeuraWell Therapeutics, Aristo Pharma GmbH. Gillman, Director of PsychoTropical Research and MAOI Expert Group Convener. Blackwell, Retired Professor and Chair of Psychiatry at the Milwaukee Campus of the University of Wisconsin School of Medicine
| | - Barry B Blackwell
- Van den Eynde, External Research Consultant for PsychoTropical Research, NeuraWell Therapeutics, Aristo Pharma GmbH. Gillman, Director of PsychoTropical Research and MAOI Expert Group Convener. Blackwell, Retired Professor and Chair of Psychiatry at the Milwaukee Campus of the University of Wisconsin School of Medicine
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Eugênio DA, Volpe LM, Ribeiro PM, Baller MA, Pacheco LG, Takahashi AV, Pacheco PDG, Putarov TC, Theodoro SDS, Carciofi AC. Effect of orange fibre on nutrient digestibility and fermentation products in faeces of cats fed kibble diets. Arch Anim Nutr 2022; 76:61-73. [PMID: 35343836 DOI: 10.1080/1745039x.2022.2040343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The aim of the present study was to compare orange fibre, beet pulp and inulin as fibre sources for cats. A control diet (CON) was formulated without inclusion of a fibre source. Further experimental diets were also based on diet CON but were supplemented with 1% orange fibre (diet 1%OF); 3% orange fibre (diet 3%OF); 3% beet pulp (diet 3%BP) or 1% inulin (diet 1%IN). Forty cats were used in a randomised block design (4 blocks of 10 cats, 2 animals per food in each block, totalling 8 animals per treatment). Each block lasted 20 d, with 10 d of adaptation, 10 d of faecal collection for digestibility as well as evaluation of pH-value and fermentation products. The digestibility of dry matter, organic matter, crude protein, ether extract, starch and gross energy did not vary between diets. In diet 1%OF, dietary fibre revealed a greater digestibility than in diet CON (p < 0.05). Faecal production was higher in cats fed diets 3%OF and 3%BP than in those fed diet 1%IN (p < 0.05). Faecal concentrations of acetate and total short-chain fatty acids were higher for cats fed diet 3%BP than for those fed diets 1%IN and CON (p < 0.05), while diets 1%OF and 3%OF showed intermediate results. Faecal propionate concentration was higher for cats fed diet 3%BP, intermediate for diets 1%OF, 3%OF and 1%IN and lower for animals fed diet CON (p < 0.05). Compared with diets CON and 1%IN, the faecal concentration of tyramine was higher for cats fed diet 3%OF (p < 0.05). Orange fibre was fermentable; up to 3% inclusion it did not interfere with the digestibility of nutrients, faecal score and faecal moisture content, and promoted the formation of short-chain fatty acids and tyramine by the intestinal microbiota, with possible effects on intestinal function.
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Affiliation(s)
- Débora Alberici Eugênio
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Lara Mantovani Volpe
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Priscila Martins Ribeiro
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Mayara Aline Baller
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Letícia Graziele Pacheco
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Amanda Vitta Takahashi
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Peterson Dante Gavasso Pacheco
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Thaila Cristina Putarov
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Stephanie de Souza Theodoro
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
| | - Aulus Cavalieri Carciofi
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, Brazil
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Gliemann L, Tamariz-Ellemann A, Collin Hansen C, Svarre Ehlers T, Møller S, Hellsten Y. Is the Pannexin-1 Channel a Mechanism Underlying Hypertension in Humans? a Translational Study of Human Hypertension. Hypertension 2022; 79:1132-1143. [PMID: 35291811 DOI: 10.1161/hypertensionaha.121.18549] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In preclinical models, the pannexin-1 channel has been shown to be involved in blood pressure regulation through an effect on peripheral vascular resistance. Pannexin-1 releases ATP, which can activate constrictive purinergic receptors on the smooth muscle cells. Pannexin-1 opening is proposed to be mediated by α-adrenergic receptors to potentiate sympathetic constriction. This positions pannexin-1 as a putative pharmacological target in blood pressure regulation in humans. The aim was to provide the first translational evidence for a role of pannexin-1 in essential hypertension in humans by use of an advanced invasive mechanistic approach. METHODS Middle-aged stage-1 hypertensive (n=13; 135.7±6.4 over 83.7±3.7 mm Hg) and normotensive men (n=12; 117.3±5.7 over 72.2±3.5 mm Hg) were included. Blood pressure and leg vascular resistance were determined during femoral arterial infusion of tyramine (α-adrenergic receptor stimulation), sodium nitroprusside, and acetylcholine. Measurements were made during control conditions and with pannexin-1 blockade (3000 mg probenecid). Expression of purinergic- and α-adrenergic receptors in skeletal muscle biopsies was determined by Western blot. RESULTS The changes in leg vascular resistance in response to tyramine (+289% versus +222%), sodium nitroprusside (-82% versus -78%) and acetylcholine (-40% versus -44%) infusion were not different between the 2 groups (P>0.05) and pannexin-1 blockade did not alter these variables (P>0.05). Expression of pannexin-1 and of purinergic- and α-adrenergic receptors was not different between the 2 groups (P>0.05). CONCLUSIONS Contrary to our hypothesis, the data demonstrate that pannexin-1 does not contribute to the elevated blood pressure in essential hypertension, a finding, which also opposes that reported in preclinical models.
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Affiliation(s)
- Lasse Gliemann
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | | | | | | | - Sophie Møller
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Ylva Hellsten
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
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Aldosary F, Norris S, Tremblay P, James JS, Ritchie JC, Blier P. Differential Potency of Venlafaxine, Paroxetine, and Atomoxetine to Inhibit Serotonin and Norepinephrine Reuptake in Patients With Major Depressive Disorder. Int J Neuropsychopharmacol 2021; 25:283-292. [PMID: 34958348 PMCID: PMC9017767 DOI: 10.1093/ijnp/pyab086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/21/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Venlafaxine is a dual serotonin (5-HT) and norepinephrine reuptake inhibitor. The specific dose at which it begins to efficiently engage the norepinephrine transporter (NET) remained to be determined. Paroxetine is generally considered as a selective 5-HT reuptake inhibitor but exhibits some affinity for NET. Atomoxetine is a NET inhibitor but also has some affinity for the 5-HT reuptake transporter (SERT). METHODS This study examined the effects of forced titration of venlafaxine from 75 to 300 mg/d, paroxetine from 20 to 50 mg/d, or atomoxetine from 25 to 80 mg/d in 32 patients with major depressive disorder. Inhibition of SERT was estimated using the depletion of whole-blood 5-HT. Inhibition of NET was assessed using the attenuation of the systolic blood pressure produced by i.v. injections of tyramine. RESULTS All 3 medications significantly reduced 5-HT levels at the initiating regimens: venlafaxine and paroxetine by approximately 60% and atomoxetine by 16%. The 3 subsequent regimens of venlafaxine and paroxetine reduced 5-HT levels by over 90%, but the highest dose of atomoxetine only reached a 40% inhibition. Atomoxetine dose dependently inhibited the tyramine pressor response from the lowest dose, venlafaxine from 225 mg/d, and paroxetine left it unaltered throughout. CONCLUSION These results confirm that venlafaxine and paroxetine are potent SERT inhibitors over their usual therapeutic range but that venlafaxine starts inhibiting NET only at 225 mg/d, whereas paroxetine remains selective for SERT up to 50 mg/d. Atomoxetine dose dependently inhibits NET from a low dose but does not inhibit SERT to a clinically relevant degree.
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Affiliation(s)
- Fahad Aldosary
- The Royal’s Institute of Mental Health Research, University of Ottawa, Ottawa, OntarioCanada,Department of Mental Health, National Neurosciences Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Sandhaya Norris
- The Royal’s Institute of Mental Health Research, University of Ottawa, Ottawa, OntarioCanada
| | | | - Jonathan S James
- The Royal’s Institute of Mental Health Research, University of Ottawa, Ottawa, OntarioCanada
| | | | - Pierre Blier
- The Royal’s Institute of Mental Health Research, University of Ottawa, Ottawa, OntarioCanada,Correspondence: Pierre Blier, MD, PhD, The Royal’s Institute of Mental Health Research, University of Ottawa, 1145 Carling Avenue, Ottawa, Ontario Canada K1Z 7K4 ()
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16
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Glyakina AV, Pavlov CD, Sopova JV, Gainetdinov RR, Leonova EI, Galzitskaya OV. Search for Structural Basis of Interactions of Biogenic Amines with Human TAAR1 and TAAR6 Receptors. Int J Mol Sci 2021; 23:ijms23010209. [PMID: 35008636 PMCID: PMC8745718 DOI: 10.3390/ijms23010209] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
The identification and characterization of ligand-receptor binding sites are important for drug development. Trace amine-associated receptors (TAARs, members of the class A GPCR family) can interact with different biogenic amines and their metabolites, but the structural basis for their recognition by the TAARs is not well understood. In this work, we have revealed for the first time a group of conserved motifs (fingerprints) characterizing TAARs and studied the docking of aromatic (β-phenylethylamine, tyramine) and aliphatic (putrescine and cadaverine) ligands, including gamma-aminobutyric acid, with human TAAR1 and TAAR6 receptors. We have identified orthosteric binding sites for TAAR1 (Asp68, Asp102, Asp284) and TAAR6 (Asp78, Asp112, Asp202). By analyzing the binding results of 7500 structures, we determined that putrescine and cadaverine bind to TAAR1 at one site, Asp68 + Asp102, and to TAAR6 at two sites, Asp78 + Asp112 and Asp112 + Asp202. Tyramine binds to TAAR6 at the same two sites as putrescine and cadaverine and does not bind to TAAR1 at the selected Asp residues. β-Phenylethylamine and gamma-aminobutyric acid do not bind to the TAAR1 and TAAR6 receptors at the selected Asp residues. The search for ligands targeting allosteric and orthosteric sites of TAARs has excellent pharmaceutical potential.
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Affiliation(s)
- Anna V. Glyakina
- Institute of Mathematical Problems of Biology, Russian Academy of Sciences, Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia;
| | - Constantine D. Pavlov
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia;
| | - Julia V. Sopova
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (J.V.S.); (R.R.G.)
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Raul R. Gainetdinov
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (J.V.S.); (R.R.G.)
| | - Elena I. Leonova
- Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; (J.V.S.); (R.R.G.)
- Animal Genetic Technologies Department, University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia
- Correspondence: (E.I.L.); (O.V.G.)
| | - Oxana V. Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia;
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
- Correspondence: (E.I.L.); (O.V.G.)
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17
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Duan N, Song M, Mi W, Wang Z, Wu S. Effectively Selecting Aptamers for Targeting Aromatic Biogenic Amines and Their Application in Aptasensing Establishment. J Agric Food Chem 2021; 69:14671-14679. [PMID: 34809428 DOI: 10.1021/acs.jafc.1c05934] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
It is necessary to detect the biogenic amine (BA) content in food due to their toxicological effects and their role as an index of freshness for protein-rich foods. Aptamer-based techniques have the potential to provide alternative methods for sensitive and efficient monitoring of BAs. Herein, we described the selection and characterization of DNA aptamers for tyramine (TYR) and β-phenethylamine (PHE) using a one-pot coupled with separate selection strategy. During the selection process, melting curve analysis was developed to monitor the enrichment of the aptamer species, and a saturation of the selection was found at the 14th round. Based on the fluorescence assay, aptamers TYR-2 and PHE-2 showed high affinity to TYR and PHE with the dissociation constant values of 64.28 ± 10.4 and 71.64 ± 11.47 nM, respectively. The circular dichromatic and molecular docking technologies were employed for the preliminary binding mechanism analysis. The obtained aptamers TYR-2 and PHE-2 were used in a fluorescence method for the TYR and PHE determination with limits of detection of 0.34 and 0.39 ng/mL, respectively. In addition, the developed aptasensor was further applied to the TYR and PHE detection in pork and beer samples, and the recovery rate was between 95.6 and 104.2%. It was demonstrated that the selected aptamers had enormous potential as a molecular probe for the identification and determination of BAs.
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Affiliation(s)
- Nuo Duan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Mingqian Song
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Weiyu Mi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Shijia Wu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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18
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Morud J, Hardege I, Liu H, Wu T, Choi MK, Basu S, Zhang Y, Schafer WR. Deorphanization of novel biogenic amine-gated ion channels identifies a new serotonin receptor for learning. Curr Biol 2021; 31:4282-4292.e6. [PMID: 34388373 PMCID: PMC8536830 DOI: 10.1016/j.cub.2021.07.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/09/2021] [Accepted: 07/15/2021] [Indexed: 11/16/2022]
Abstract
Pentameric ligand-gated ion channels (LGICs) play conserved, critical roles in both excitatory and inhibitory synaptic transmission and can be activated by diverse neurochemical ligands. We have performed a characterization of orphan channels from the nematode C. elegans, identifying five new monoamine-gated LGICs with diverse functional properties and expression postsynaptic to aminergic neurons. These include polymodal anion channels activated by both dopamine and tyramine, which may mediate inhibitory transmission by both molecules in vivo. Intriguingly, we also find that a novel serotonin-gated cation channel, LGC-50, is essential for aversive olfactory learning of pathogenic bacteria, a process known to depend on serotonergic neurotransmission. Remarkably, the redistribution of LGC-50 to neuronal processes is modulated by olfactory conditioning, and lgc-50 point mutations that cause misregulation of receptor membrane expression interfere with olfactory learning. Thus, the intracellular trafficking and localization of these receptors at synapses may represent a molecular cornerstone of the learning mechanism.
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Affiliation(s)
- Julia Morud
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Iris Hardege
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - He Liu
- Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA; Centre for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Taihong Wu
- Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA; Centre for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Myung-Kyu Choi
- Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA; Centre for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - Swaraj Basu
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Medicinaregatan 9A, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Yun Zhang
- Department of Organismic and Evolutionary Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA; Centre for Brain Science, Harvard University, Cambridge, MA 02138, USA
| | - William R Schafer
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK; Department of Biology, KU Leuven, Naamsestraat 59, 3000 Leuven, Belgium.
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19
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Cheriyamkunnel SJ, Rose S, Jacob PF, Blackburn LA, Glasgow S, Moorse J, Winstanley M, Moynihan PJ, Waddell S, Rezaval C. A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila. Curr Biol 2021; 31:4231-4245.e4. [PMID: 34358444 PMCID: PMC8538064 DOI: 10.1016/j.cub.2021.07.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/25/2021] [Accepted: 07/13/2021] [Indexed: 01/28/2023]
Abstract
Animals must express the appropriate behavior that meets their most pressing physiological needs and their environmental context. However, it is currently unclear how alternative behavioral options are evaluated and appropriate actions are prioritized. Here, we describe how fruit flies choose between feeding and courtship; two behaviors necessary for survival and reproduction. We show that sex- and food-deprived male flies prioritize feeding over courtship initiation, and manipulation of food quality or the animal's internal state fine-tunes this decision. We identify the tyramine signaling pathway as an essential mediator of this decision. Tyramine biosynthesis is regulated by the fly's nutritional state and acts as a satiety signal, favoring courtship over feeding. Tyramine inhibits a subset of feeding-promoting tyramine receptor (TyrR)-expressing neurons and activates P1 neurons, a known command center for courtship. Conversely, the perception of a nutritious food source activates TyrR neurons and inhibits P1 neurons. Therefore, TyrR and P1 neurons are oppositely modulated by starvation, via tyramine levels, and food availability. We propose that antagonistic co-regulation of neurons controlling alternative actions is key to prioritizing competing drives in a context- dependent manner.
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Affiliation(s)
| | - Saloni Rose
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Pedro F Jacob
- Centre for Neural Circuits and Behaviour, University of Oxford, Oxford OX1 3SR, UK
| | | | - Shaleen Glasgow
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Jacob Moorse
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Mike Winstanley
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
| | | | - Scott Waddell
- Centre for Neural Circuits and Behaviour, University of Oxford, Oxford OX1 3SR, UK
| | - Carolina Rezaval
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK.
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20
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Schilcher F, Thamm M, Strube-Bloss M, Scheiner R. Opposing Actions of Octopamine and Tyramine on Honeybee Vision. Biomolecules 2021; 11:1374. [PMID: 34572588 DOI: 10.3390/biom11091374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/14/2022] Open
Abstract
The biogenic amines octopamine and tyramine are important neurotransmitters in insects and other protostomes. They play a pivotal role in the sensory responses, learning and memory and social organisation of honeybees. Generally, octopamine and tyramine are believed to fulfil similar roles as their deuterostome counterparts epinephrine and norepinephrine. In some cases opposing functions of both amines have been observed. In this study, we examined the functions of tyramine and octopamine in honeybee responses to light. As a first step, electroretinography was used to analyse the effect of both amines on sensory sensitivity at the photoreceptor level. Here, the maximum receptor response was increased by octopamine and decreased by tyramine. As a second step, phototaxis experiments were performed to quantify the behavioural responses to light following treatment with either amine. Octopamine increased the walking speed towards different light sources while tyramine decreased it. This was independent of locomotor activity. Our results indicate that tyramine and octopamine act as functional opposites in processing responses to light.
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Luliński P, Janczura M, Sobiech M, Giebułtowicz J. Magnetic Molecularly Imprinted Nano-Conjugates for Effective Extraction of Food Components-A Model Study of Tyramine Determination in Craft Beers. Int J Mol Sci 2021; 22:9560. [PMID: 34502468 PMCID: PMC8430699 DOI: 10.3390/ijms22179560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/16/2022] Open
Abstract
In this paper, magnetic molecularly imprinted nano-conjugates were synthesized to serve as selective sorbents in a model study of tyramine determination in craft beer samples. The molecularly imprinted sorbent was characterized in terms of morphology, structure, and composition. The magnetic dispersive solid phase extraction protocol was developed and combined with liquid chromatography coupled with mass spectrometry to determine tyramine. Ten samples of craft beers were analyzed using a validated method, revealing tyramine concentrations in the range between 0.303 and 126.5 mg L-1. Tyramine limits of detection and quantification were 0.033 mg L-1 and 0.075 mg L-1, respectively. Therefore, the fabricated molecularly imprinted magnetic nano-conjugates with a fast magnetic responsivity and desirable adsorption performance could be an effective tool for monitoring tyramine levels in beverages.
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Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Marta Janczura
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Joanna Giebułtowicz
- Department of Bioanalysis and Drugs Analysis, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland;
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22
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Emerson S, Hay M, Smith M, Granger R, Blauch D, Snyder N, El Bejjani R. Acetylcholine signaling genes are required for cocaine-stimulated egg laying in Caenorhabditis elegans. G3 (Bethesda) 2021; 11:jkab143. [PMID: 33914087 PMCID: PMC8763240 DOI: 10.1093/g3journal/jkab143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 04/20/2021] [Indexed: 11/23/2022]
Abstract
The toxicity and addictive liability associated with cocaine abuse are well-known. However, its mode of action is not completely understood, and effective pharmacotherapeutic interventions remain elusive. The cholinergic effects of cocaine on acetylcholine receptors, synthetic enzymes, and degradative enzymes have been the focus of relatively little empirical investigation. Due to its genetic tractability and anatomical simplicity, the egg laying circuit of the hermaphroditic nematode, Caenorhabditis elegans, is a powerful model system to precisely examine the genetic and molecular targets of cocaine in vivo. Here, we report a novel cocaine-induced behavioral phenotype in C. elegans, cocaine-stimulated egg laying. In addition, we present the results of an in vivo candidate suppression screen of synthetic enzymes, receptors, degradative enzymes, and downstream components of the intracellular signaling cascades of the main neurotransmitter systems that control C. elegans egg laying. Our results show that cocaine-stimulated egg laying is dependent on acetylcholine synthesis and synaptic release, functional nicotinic acetylcholine receptors, and the C. elegans acetylcholinesterases.
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Affiliation(s)
- Soren Emerson
- Neuroscience Interdisciplinary Program, Davidson College, Davidson, NC 28035, USA
| | - Megan Hay
- Biology Department, Davidson College, Davidson, NC 28035, USA
| | - Mark Smith
- Neuroscience Interdisciplinary Program, Davidson College, Davidson, NC 28035, USA
- Psychology Department, Davidson College, Davidson, NC 28035, USA
| | - Ricky Granger
- Biology Department, Davidson College, Davidson, NC 28035, USA
| | - David Blauch
- Chemistry Department, Davidson College, Davidson, NC 28035 USA
| | - Nicole Snyder
- Chemistry Department, Davidson College, Davidson, NC 28035 USA
| | - Rachid El Bejjani
- Neuroscience Interdisciplinary Program, Davidson College, Davidson, NC 28035, USA
- Biology Department, Davidson College, Davidson, NC 28035, USA
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23
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Lee KM, Talikoti A, Shelton K, Grotewiel M. Tyramine synthesis, vesicular packaging, and the SNARE complex function coordinately in astrocytes to regulate Drosophila alcohol sedation. Addict Biol 2021; 26:e13019. [PMID: 33538092 PMCID: PMC8225576 DOI: 10.1111/adb.13019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 01/08/2021] [Accepted: 01/19/2021] [Indexed: 12/21/2022]
Abstract
Identifying mechanisms underlying alcohol-related behaviors could provide important insights regarding the etiology of alcohol use disorder. To date, most genetic studies on alcohol-related behavior in model organisms have focused on neurons, leaving the causal roles of glial mechanisms less comprehensively investigated. Here, we report our studies on the role of Tyrosine decarboxylase 2 (Tdc2), which converts tyrosine to the catecholamine tyramine, in glial cells in Drosophila alcohol sedation. Using genetic approaches that drove transgene expression constitutively in all glia, constitutively in astrocytes and conditionally in glia during adulthood, we found that knockdown and overexpression of Tdc2, respectively, increased and decreased the sensitivity to alcohol sedation in flies. Manipulation of the genes tyramine β-hydroxylase and tyrosine hydroxylase, which respectively synthesize octopamine and dopamine from tyramine and tyrosine, had no discernable effect on alcohol sedation, suggesting that Tdc2 affects alcohol sedation by regulating tyramine production. We also found that knockdown of the vesicular monoamine transporter (VMAT) and disruption of the SNARE complex in all glia or selectively in astrocytes increased sensitivity to alcohol sedation and that both VMAT and the SNARE complex functioned downstream of Tdc2. Our studies support a model in which the synthesis of tyramine and vesicle-mediated release of tyramine from adult astrocytes regulates alcohol sedation in Drosophila. Considering that tyramine is functionally orthologous to norepinephrine in mammals, our results raise the possibility that gliotransmitter synthesis release could be a conserved mechanism influencing behavioral responses to alcohol as well as alcohol use disorder.
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Affiliation(s)
- Kristen M. Lee
- Neuroscience Graduate Program, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Ananya Talikoti
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Keith Shelton
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Mike Grotewiel
- Neuroscience Graduate Program, Virginia Commonwealth University, Richmond, Virginia, USA
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, Virginia, USA
- Virginia Commonwealth University Alcohol Research Center, Virginia Commonwealth University, Richmond, Virginia, USA
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24
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Burin R, Shah DH. Phenelzine and Amoxapine Inhibit Tyramine and d-Glucuronic Acid Catabolism in Clinically Significant Salmonella in A Serotype-Independent Manner. Pathogens 2021; 10:pathogens10040469. [PMID: 33924374 PMCID: PMC8070173 DOI: 10.3390/pathogens10040469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022] Open
Abstract
Non-typhoidal Salmonella ingeniously scavenges energy for growth from tyramine (TYR) and d-glucuronic acid (DGA), both of which occur in the host as the metabolic byproducts of the gut microbial metabolism. A critical first step in energy scavenging from TYR and DGA in Salmonella involves TYR-oxidation via TYR-oxidoreductase and production of free-DGA via β-glucuronidase (GUS)-mediated hydrolysis of d-glucuronides (conjugated form of DGA), respectively. Here, we report that Salmonella utilizes TYR and DGA as sole sources of energy in a serotype-independent manner. Using colorimetric and radiometric approaches, we report that genes SEN2971, SEN3065, and SEN2426 encode TYR-oxidoreductases. Some Salmonella serotypes produce GUS, thus can also scavenge energy from d-glucuronides. We repurposed phenelzine (monoaminoxidase-inhibitor) and amoxapine (GUS-inhibitor) to inhibit the TYR-oxidoreductases and GUS encoded by Salmonella, respectively. We show that phenelzine significantly inhibits the growth of Salmonella by inhibiting TYR-oxidoreductases SEN2971, SEN3065, and SEN2426. Similarly, amoxapine significantly inhibits the growth of Salmonella by inhibiting GUS-mediated hydrolysis of d-glucuronides. Because TYR and DGA serve as potential energy sources for Salmonella growth in vivo, the data and the novel approaches used here provides a better understanding of the role of TYR and DGA in Salmonella pathogenesis and nutritional virulence.
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Affiliation(s)
- Raquel Burin
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA;
| | - Devendra H. Shah
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA;
- Paul Allen School for Global Animal Health, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
- Correspondence: ; Tel.: +1-509-335-6071
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25
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Finetti L, Roeder T, Calò G, Bernacchia G. The Insect Type 1 Tyramine Receptors: From Structure to Behavior. Insects 2021; 12:315. [PMID: 33915977 DOI: 10.3390/insects12040315] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/23/2021] [Accepted: 03/29/2021] [Indexed: 12/14/2022]
Abstract
Simple Summary This review aims to describe the type 1 tyramine receptors (TAR1s) in insects with a multidisciplinary approach and might be an important tool for a wide scientific audience, including biochemists, molecular physiologists, ethologists, and neurobiologists with a biological entomology background. In fact, in the last years, TAR1 has received much attention due to its broad general interest. The review is composed of a general introduction about the tyraminergic and octopaminergic systems and the corresponding tyramine (TA) and octopamine (OA) receptors, including the recent classification as well as their brief structural and functional information. The four chapters then describe TAR1s: (1) Molecular and structural characterization, with the purpose to provide a clear biochemical overview of the receptor that ensures a well-defined TAR1 identity; (2) pharmacology, in which a clear TAR1-mediated intracellular signaling pathway is detailed; (3) physiology and behavior, focusing on the TAR1-controlled traits in insects; (4) insecticide target, in which the knowledge on TAR1 roles in insects is associated with the growing evidence about the pest management strategies based on this receptor. The conclusions summarize TAR1 features as well as future directions on which the receptor research should move. Abstract Tyramine is a neuroactive compound that acts as neurotransmitter, neuromodulator, and neurohormone in insects. Three G protein-coupled receptors, TAR1-3, are responsible for mediating the intracellular pathway in the complex tyraminergic network. TAR1, the prominent player in this system, was initially classified as an octopamine receptor which can also be activated by tyramine, while it later appeared to be a true tyramine receptor. Even though TAR1 is currently considered as a well-defined tyramine receptor and several insect TAR1s have been characterized, a defined nomenclature is still inconsistent. In the last years, our knowledge on the structural, biochemical, and functional properties of TAR1 has substantially increased. This review summarizes the available information on TAR1 from different insect species in terms of basic structure, its regulation and signal transduction mechanisms, and its distribution and functions in the brain and the periphery. A special focus is given to the TAR1-mediated intracellular signaling pathways as well as to their physiological role in regulating behavioral traits. Therefore, this work aims to correlate, for the first time, the physiological relevance of TAR1 functions with the tyraminergic system in insects. In addition, pharmacological studies have shed light on compounds with insecticidal properties having TAR1 as a target and on the emerging trend in the development of novel strategies for pest control.
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26
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Ferreira Miranda MT, Lemos MP, Sasaki JE, Mota GR, Marocolo M, Sordi CCD, Almeida TR, Dias da Silva VJ, Neto OB. Exercise training ameliorates adrenergic control in spontaneously hypertensive rats. Clin Exp Hypertens 2021; 43:101-111. [PMID: 32924628 DOI: 10.1080/10641963.2020.1817474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The goal of this study was to examine vascular control after sympathetic stimulation by tyramine infusion in hypertensive rats submitted to swimming training. To this end, male rats were assigned to the following groups: sedentary (SN) and trained normotensive (TN), sedentary (SH) and trained hypertensive (TH). Arterial pressure (AP), heart rate (HR), HR variability (HRV), AP variability (APV), and cardiac autonomic function were recorded. Following, infusion of tyramine was administrated. The TN and TH showed a lower resting HR compared with their respective sedentary groups (p < .05). Pressure levels were less in TH than SH (p < .05). The TH showed a higher HRV together with a lower APV in comparison to SH (p < .05). The sympathetic modulation of HRV and APV was lower in TH than in SH (p < .05). Both trained groups presented an increased parasympathetic modulation of HRV compared with their respective sedentary groups (p < .05). The TN and TH groups had a higher vagal effect in comparison with their respective sedentary groups (p < .001). The sympathetic effect was lower in TH than in SH (p < .001). Pressor and HR responses to tyramine in different doses were attenuated in TH (p < .001). Further analysis showed a significant association between infusion of tyramine and normalized LF component of HRV (r = 0.84, p < .001), systolic APV (r = 0.58, p < .001) and diastolic APV (r = 0.49, p < .001). In conclusion, exercise training provokes less pressor response variation by tyramine infusion in hypertensive animals suggesting sympathetic nerve endings adjustments and decrease of the vasoconstrictor effect attenuates injury caused by hypertension improving cardiovascular autonomic dysfunction, which can be associated with sympathetic attenuation.
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Affiliation(s)
- Munique Tostes Ferreira Miranda
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil.,Department of Medicine, Federal University of São Paulo , São Paulo, Brazil
| | - Marina Paiva Lemos
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Jeffer Eidi Sasaki
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Gustavo R Mota
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Moacir Marocolo
- Department of Physiology, Federal University of Juiz de Fora , Juiz de Fora, Brazil
| | - Carla Cristina de Sordi
- Department of Endocrinology and Metabolism, Postgraduate Course on Health Science, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | | | | | - Octávio Barbosa Neto
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil.,Department of Physiology, Federal University of Triângulo Mineiro , Uberaba, Brazil
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27
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Xia H, Wang LY, Xia GY, Wei XH, Wang YN, Lin S. [Chemical constituents from ethyl acetate soluble extraction of Litsea cubeba]. Zhongguo Zhong Yao Za Zhi 2021; 45:5877-5883. [PMID: 33496127 DOI: 10.19540/j.cnki.cjcmm.20200820.202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Chemical investigation on the constituents of the ethyl acetate soluble extraction of Litsea cubeba has resulted in the isolation and structure elucidation of thirty compounds, including one sesquiterpene(1), four monoterpenes(2-5), two γ-butyrolactone derivatives(6 and 7), seven tyramine derivatives(8-14), fifteen aromatic compounds(15-29), and one pyrone derivative(30) via various chromatographic techniques and spectroscopic data analysis(MS, IR, 1 D and 2 D NMR). Compounds 1-7, 13 and 14 were obtained from the genus Litsea for the first time.
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Affiliation(s)
- Huan Xia
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine Beijing 100700, China
| | - Ling-Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines,Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050, China
| | - Gui-Yang Xia
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine Beijing 100700, China
| | - Xiao-Hong Wei
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine Beijing 100700, China
| | - Ya-Nan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines,Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050, China
| | - Sheng Lin
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine Beijing 100700, China State Key Laboratory of Bioactive Substance and Function of Natural Medicines,Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050, China
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28
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Arenas A, Lajad R, Peng T, Grüter C, Farina W. Correlation between octopaminergic signalling and foraging task specialisation in honeybees. Genes Brain Behav 2020; 20:e12718. [PMID: 33251675 DOI: 10.1111/gbb.12718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 11/17/2020] [Accepted: 11/26/2020] [Indexed: 01/12/2023]
Abstract
Regulation of pollen and nectar foraging in honeybees is linked to differences in the sensitivity to the reward. Octopamine (OA) participates in the processing of reward-related information in the bee brain, being a candidate to mediate and modulate the division of labour among pollen and nectar foragers. Here we tested the hypothesis that OA affects the resource preferences of foragers. We first investigated whether oral administration of OA is involved in the transition from nectar to pollen foraging. We quantified the percentage of OA-treated bees that switched from a sucrose solution to a pollen feeder when the sugar concentration was decreased experimentally. We also evaluated if feeding the colonies sucrose solution containing OA increases the rate of bees collecting pollen. Finally, we quantified OA and tyramine (TYR) receptor genes expression of pollen and nectar foragers in different parts of the brain, as a putative mechanism that affects the decision-making process regarding the resource type collected. Adding OA in the food modified the probability that foragers switch from nectar to pollen collection. The proportion of pollen foragers also increased after feeding colonies with OA-containing food. Furthermore, the expression level of the AmoctαR1 was upregulated in foragers arriving at pollen sources compared with those arriving at sugar-water feeders. Using age-matched pollen and nectar foragers that returned to the hive, we detected an upregulated expression of a TYR receptor gene in the suboesophageal ganglia. These findings support our prediction that OA signalling affects the decision in honeybee foragers to collect pollen or nectar.
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Affiliation(s)
- Andrés Arenas
- Laboratorio de Insectos Sociales, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET - Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Rocío Lajad
- Laboratorio de Insectos Sociales, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET - Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Tianfei Peng
- Institute of Organismic and Molecular Evolutionary Biology, Johannes-Gutenberg University of Mainz, Mainz, Germany
| | - Christoph Grüter
- Institute of Organismic and Molecular Evolutionary Biology, Johannes-Gutenberg University of Mainz, Mainz, Germany.,School of Biological Sciences, University of Bristol, Bristol, UK
| | - Walter Farina
- Laboratorio de Insectos Sociales, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Fisiología, Biología Molecular y Neurociencias, CONICET - Universidad de Buenos Aires, Buenos Aires, Argentina
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29
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Abstract
The coordination between the animal's external environment and internal state requires constant modulation by chemicals known as neuromodulators. Neuromodulators, such as biogenic amines, neuropeptides and cytokines, promote organismal homeostasis. Over the past several decades, Caenorhabditiselegans has grown into a powerful model organism that allows the elucidation of the mechanisms of action of neuromodulators that are conserved across species. In this perspective, we highlight a collection of articles in this issue that describe how neuromodulators optimize C. elegans survival.
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Affiliation(s)
- Joy Alcedo
- Department of Biological Sciences, Wayne State University, Detroit, MI, USA
| | - Veena Prahlad
- Department of Biology, Aging Mind and Brain Initiative, and Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
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30
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Park YK, Jin YH, Lee JH, Byun BY, Lee J, Jeong KC, Mah JH. The Role of Enterococcus faecium as a Key Producer and Fermentation Condition as an Influencing Factor in Tyramine Accumulation in Cheonggukjang. Foods 2020; 9:foods9070915. [PMID: 32664514 PMCID: PMC7405019 DOI: 10.3390/foods9070915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/04/2020] [Accepted: 07/08/2020] [Indexed: 11/16/2022] Open
Abstract
The study evaluated the role of Enterococcus faecium in tyramine production and its response to fermentation temperature in a traditional Korean fermented soybean paste, Cheonggukjang. Tyramine content was detected in retail Cheonggukjang products at high concentrations exceeding the recommended limit up to a factor of 14. All retail Cheonggukjang products contained Enterococcus spp. at concentrations of at least 6 Log CFU/g. Upon isolation of Enterococcus strains, approximately 93% (157 strains) produced tyramine at over 100 µg/mL. The strains that produced the highest concentrations of tyramine (301.14–315.29 μg/mL) were identified as E. faecium through 16S rRNA sequencing. The results indicate that E. faecium is one of the major contributing factors to high tyramine content in Cheonggukjang. During fermentation, tyramine content in Cheonggukjang groups co-inoculated with E. faecium strains was highest at 45 °C, followed by 37 °C and 25 °C. The tyramine content of most Cheonggukjang groups continually increased as fermentation progressed, except groups fermented at 25 °C. At 45 °C, the tyramine content occasionally exceeded the recommended limit within 3 days of fermentation. The results suggest that lowering fermentation temperature and shortening duration may reduce the tyramine content of Cheonggukjang, thereby reducing the safety risks that may arise when consuming food with high tyramine concentrations.
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Affiliation(s)
- Young Kyoung Park
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
| | - Young Hun Jin
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
| | - Jun-Hee Lee
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
| | - Bo Young Byun
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
| | - Junsu Lee
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
| | - KwangCheol Casey Jeong
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA;
- Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA
| | - Jae-Hyung Mah
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea; (Y.K.P.); (Y.H.J.); (J.-H.L.); (B.Y.B.); (J.L.)
- Correspondence: ; Tel.: +82-44-860-1431
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31
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Alfieri ML, Panzella L, Arntz Y, Napolitano A, Ball V, d’Ischia M. A Clean and Tunable Mussel-Inspired Coating Technology by Enzymatic Deposition of Pseudo-Polydopamine (ψ-PDA) Thin Films from Tyramine. Int J Mol Sci 2020; 21:E4873. [PMID: 32664213 PMCID: PMC7402308 DOI: 10.3390/ijms21144873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/29/2020] [Accepted: 07/08/2020] [Indexed: 01/01/2023] Open
Abstract
The tyrosinase-catalyzed oxidation of tyramine, leading to the deposition of pseudo-polydopamine (ψ-PDA) thin films, is disclosed herein as a superior technology for surface functionalization and coating at a neutral pH and at a low substrate concentration, compared to the standard autoxidative PDA coating protocols. Smooth ψ-PDA thin films of variable thickness up to 87 nm were obtained from 1 mM tyramine by varying tyrosinase concentrations (5-100 U/mL). Compared to the PDA films obtained by the similar enzymatic oxidation of 1 mM dopamine with tyrosinase (T-PDA), ψ-PDA displayed slower deposition kinetics, lower water contact angles in the range of 11°-28°, denoting higher hydrophilicity but similar UV-vis absorption profiles, as well as electrochemical properties and antioxidant activity. MALDI-MS analysis indicated for ψ-PDA a well defined pattern of peaks compatible with dopamine tetrameric structures degraded to a variable extent. The exposure to a tyramine solution of tyrosinase-loaded alginate spheres, or films deposited on glass or polyethylene, resulted in a rapid gel-confined ψ-PDA formation with no leakage or darkening of the solution, allowing the complete recovery and re-utilization of the unreacted tyramine. In contrast, an abundant PDA precipitation outside the gel was observed with dopamine under the same conditions. The ψ-PDA deposition by tyrosinase-catalyzed tyramine oxidation is thus proposed as a controllable and low-waste technology for selective surface functionalization and coating or for clean eumelanin particle production.
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Affiliation(s)
- Maria Laura Alfieri
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy; (M.L.A.); (L.P.); (A.N.)
| | - Lucia Panzella
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy; (M.L.A.); (L.P.); (A.N.)
| | - Youri Arntz
- Faculté de Chirurgie dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000 Strasbourg, France;
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1121, 11 rue Humann, 67085 Strasbourg, CEDEX, France
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy; (M.L.A.); (L.P.); (A.N.)
| | - Vincent Ball
- Faculté de Chirurgie dentaire, Université de Strasbourg, 8 rue Sainte Elisabeth, 67000 Strasbourg, France;
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1121, 11 rue Humann, 67085 Strasbourg, CEDEX, France
| | - Marco d’Ischia
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy; (M.L.A.); (L.P.); (A.N.)
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Hana S, Lange AB. Corrigendum: Cloning and Functional Characterization of Octβ2-Receptor and Tyr1-Receptor in the Chagas Disease Vector, Rhodnius prolixus. Front Physiol 2020; 11:649. [PMID: 32695012 PMCID: PMC7338766 DOI: 10.3389/fphys.2020.00649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 05/21/2020] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fphys.2017.00744.].
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Affiliation(s)
- Sam Hana
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Angela B Lange
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
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Abstract
Implicated in various diseases including Parkinson's disease, Huntington's disease, migraines, schizophrenia and increased blood pressure, tyramine plays a crucial role as a neurotransmitter in the synaptic cleft by reducing serotonergic and dopaminergic signaling through a trace amine-associated receptor (TAAR1). There appear to be no studies investigating a connection of tyramine to Alzheimer's disease. This study aimed to examine whether tyramine could be involved in AD pathology by using Saccharomyces cerevisiae expressing Aβ42. S. cerevisiae cells producing native Aβ42 were treated with different concentrations of tyramine, and the production of reactive oxygen species (ROS) was evaluated using flow cytometric cell analysis. There was dose-dependent ROS generation in wild-type yeast cells with tyramine. In yeast producing Aβ42, ROS levels generated were significantly higher than in controls, suggesting a synergistic toxicity of Aβ42 and tyramine. The addition of exogenous reduced glutathione (GSH) was found to rescue the cells with increased ROS, indicating depletion of intracellular GSH due to tyramine and Aβ42. Additionally, tyramine inhibited the respiratory growth of yeast cells producing GFP-Aβ42, while there was no growth inhibition when cells were producing GFP. Tyramine was also demonstrated to cause increased mitochondrial DNA damage, resulting in the formation of petite mutants that lack respiratory function. These findings indicate that there can be a detrimental synergy between Aβ42 and tyramine, which could be considered in Alzheimer's disease. This work also demonstrates the utility of yeast as a model for studying toxic agents such as Aβ42, tyramine, and agents that might exacerbate AD pathology.
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Handa A, Kawanabe H, Ibe A. [Factors Related to the Production of Histamine and Tyramine in Rice Bran Pickles]. Shokuhin Eiseigaku Zasshi 2020; 61:1-6. [PMID: 32336713 DOI: 10.3358/shokueishi.61.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Some rice bran pickles contain histamine (Him) and tyramine (Tym), which are nonvolatile amines, presumably produced by microorganisms during the fermentation process. When attempting to identify the histamine- and tyramine-producing bacteria from commercially available cucumber rice bran pickles containing Him and Tym, it was identified histamine-producing bacteria were found to be Raoultella ornithinolytica, and tyramine-producing bacteria were Lactobacillus curvatus. When those bacteria were cultured in media containing rice bran (the raw material for rice bran pickles), Him and Tym were produced. However, it was suggested that Him and Tym were not necessarily produced by the presence or absence of amine-producing bacteria, but rather, their production was affected by the amount of precursor amino acids and other bacteria that were present during rice bran pickles production.
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Shin JY, Yeo YH, Jeong JE, Park SA, Park WH. Dual-crosslinked methylcellulose hydrogels for 3D bioprinting applications. Carbohydr Polym 2020; 238:116192. [PMID: 32299570 DOI: 10.1016/j.carbpol.2020.116192] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 12/14/2022]
Abstract
Thermo-sensitive methylcellulose (MC) hydrogel has been widely used as a scaffold material for biomedical applications. However, due to its poor mechanical properties, the MC-based hydrogel has rarely been employed in 3D bioprinting for tissue engineering scaffolds. In this study, the dual crosslinkable tyramine-modified MC (MC-Tyr) conjugate was prepared via a two-step synthesis, and its hydrogel showed excellent mechanical properties and printability for 3D bioprinting applications. The MC-Tyr conjugate formed a dual-crosslinked hydrogel by modulating the temperature and/or visible light. A combination of reversible physical crosslinking (thermal crosslinking) and irreversible chemical crosslinking (photocrosslinking) was used in this dual crosslinked hydrogel. Also, the photocrosslinking of MC-Tyr solution was facilitated by visible light exposure in the presence of biocompatible photoinitiators (riboflavin, RF and riboflavin 5'-monophophate, RFp). The RF and RFp were used to compare the cytotoxicity and salting-out effect of MC-Tyr hydrogel, as well as the initiation ability, based on the difference in chemical structure. Also, the influence of the printing parameters on the printed MC hydrogel was investigated. Finally, the cell-laden MC-Tyr bioink was successfully extruded into stable 3D hydrogel constructs with high resolution via a dual crosslinking strategy. Furthermore, the MC-Tyr scaffolds showed excellent cell viability and proliferation.
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Affiliation(s)
- Ji Youn Shin
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Yong Ho Yeo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, South Korea
| | - Jae Eun Jeong
- Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, South Korea
| | - Su A Park
- Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, Daejeon, 34103, South Korea.
| | - Won Ho Park
- Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, South Korea.
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Yao CX, Zhao N, Liu JM, Fang GZ, Wang S. Ultra-Stable UiO-66 Involved Molecularly Imprinted Polymers for Specific and Sensitive Determination of Tyramine Based on Quartz Crystal Microbalance Technology. Polymers (Basel) 2020; 12:polym12020281. [PMID: 32024028 PMCID: PMC7077428 DOI: 10.3390/polym12020281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 01/27/2020] [Accepted: 01/27/2020] [Indexed: 02/06/2023] Open
Abstract
A rapid method was developed to determine the content of tyramine in food on the basis of the combination of molecular imprinting technique and the metal-organic frameworks. We developed the new molecular imprinted polymers based on metal-organic frameworks UiO-66 (named UiO-66@MIPs) as the sensing recognition element, the non-molecular imprinted polymers based on UiO-66 (named UiO-66@NIPs) was synthesized according the same steps without tyramine for comparison. The characterization of obtained UiO-66@MIPs was investigated through a series of characterization experiments. The results indicated that the octahedral shaped UiO-66 was encapsulated in the sol-gel polymer film, with a desirable thermal stability and possessed a specific surface area (SSA) of 994.3 m2·g−1. The imprinting factor of the UiO-66@MIPs for tyramine was 1.956 in static experiment. This indicates the synthesized UiO-66@MIPs have outstanding performance compered to UiO-66@NIPs on the static adsorption quantity and selective adsorption affinity. It’s to make use of advantages of the synthetic materials to develop a quartz crystal microbalance (QCM) sensor for the sensitive detection of tyramine. The detection limit of the system was 61.65 μg·L−1 within measurable concentration range from 80 to 500 μg·L−1. The prepared QCM sensor was verified in selectivity and application. The UiO-66@MIPs possess good behavior on selectivity, absorptivity, and chemical stability, so the UiO-66@MIPs achieve accurate and rapid trace detection of biogenic amines in food combining with the quartz crystal microbalance.
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Affiliation(s)
- Chi-Xuan Yao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; (C.-X.Y.); (G.-Z.F.)
| | - Ning Zhao
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (N.Z.); (J.-M.L.)
| | - Jing-Min Liu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (N.Z.); (J.-M.L.)
| | - Guo-Zhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; (C.-X.Y.); (G.-Z.F.)
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; (C.-X.Y.); (G.-Z.F.)
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China; (N.Z.); (J.-M.L.)
- Correspondence: ; Tel.: +86-22-85358445
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Patel A, Thompson A, Abdelmalek L, Adams-Huet B, Jialal I. The relationship between tyramine levels and inflammation in metabolic syndrome. Horm Mol Biol Clin Investig 2019; 40:/j/hmbci.ahead-of-print/hmbci-2019-0047/hmbci-2019-0047.xml. [PMID: 31693494 DOI: 10.1515/hmbci-2019-0047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 09/23/2019] [Indexed: 12/25/2022]
Abstract
Background Metabolic syndrome (MetS) is an important contributor to both type 2 diabetes mellitus (T2DM) and atherosclerotic cardiovascular disease (ASCVD). Although MetS affects one third of American adults, its pathogenesis remains to be elucidated. Tyramine, a derivative of tyrosine, has been shown to act as a catecholamine releasing agent in the human body. The aim of this study is to investigate the role of tyramine as an early biomarker for nascent MetS without the confounding of T2DM, ASCVD or smoking. Patients and methods This was an exploratory study of 28 patients with nascent MetS and 20 matched controls carried out in 2018. Metabolites were evaluated from patient's frozen early morning urine samples and were correlated with biomarkers of inflammation and adipokines. They were assayed by the National Institutes of Health (NIH) Western Metabolomics Center using liquid chromatography/mass spectrometry (LC/MS) and standardized to urinary creatinine. All patients had normal hepatic and renal function. Results Tyramine concentrations were significantly reduced in patients with MetS compared to controls, p = 0.0009. In addition, tyramine was significantly inversely correlated with multiple biomarkers of inflammation and cardiometabolic risk factors such as RBP4, monocyte TLR-4 abundance and P38MAPKinase activity, body mass index (BMI) and blood pressure (BP) (both systolic and diastolic). Conclusion In conclusion, low levels of tyramine could contribute to the proinflammatorty state of MetS.
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Affiliation(s)
- Ajay Patel
- California Northstate University, College of Medicine, Medical Student Research, Elk Grove, CA, USA
| | - Austin Thompson
- California Northstate University, College of Medicine, Medical Student Research, Elk Grove, CA, USA
| | - Lillian Abdelmalek
- California Northstate University, College of Medicine, Medical Student Research, Elk Grove, CA, USA
| | - Beverley Adams-Huet
- VA Medical Center, Mather, CA, USA.,University of Texas, Faculty of UT Southwestern Medical Center, Dallas, TX, USA
| | - Ishwarlal Jialal
- VA Medical Center, Mather, CA, USA.,Assistant Dean of Research, California Northstate University, College of Medicine, Elk Grove, CA, USA, Phone: +1-530-902-0125
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Rafehi M, Faltraco F, Matthaei J, Prukop T, Jensen O, Grytzmann A, Blome FG, Berger RG, Krings U, Vormfelde SV, Tzvetkov MV, Brockmöller J. Highly Variable Pharmacokinetics of Tyramine in Humans and Polymorphisms in OCT1, CYP2D6, and MAO-A. Front Pharmacol 2019; 10:1297. [PMID: 31736764 PMCID: PMC6831736 DOI: 10.3389/fphar.2019.01297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/10/2019] [Indexed: 11/17/2022] Open
Abstract
Tyramine, formed by the decarboxylation of tyrosine, is a natural constituent of numerous food products. As an indirect sympathomimetic, it can have potentially dangerous hypertensive effects. In vitro data indicated that the pharmacokinetics of tyramine possibly depend on the organic cation transporter OCT1 genotype and on the CYP2D6 genotype. Since tyramine is a prototypic substrate of monoamine oxidase A (MAO-A), genetic polymorphisms in MAO-A may also be relevant. The aims of this study were to identify to what extent the interindividual variation in pharmacokinetics and pharmacodynamics of tyramine is determined by genetic polymorphisms in OCT1, CYP2D6, and MAO-A. Beyond that, we wanted to evaluate tyramine as probe drug for the in vivo activity of MAO-A and OCT1. Therefore, the pharmacokinetics, pharmacodynamics, and pharmacogenetics of tyramine were studied in 88 healthy volunteers after oral administration of a 400 mg dose. We observed a strong interindividual variation in systemic tyramine exposure, with a mean AUC of 3.74 min*µg/ml and a high mean CL/F ratio of 107 l/min. On average, as much as 76.8% of the dose was recovered in urine in form of the MAO-catalysed metabolite 4-hydroxyphenylacetic acid (4-HPAA), confirming that oxidative deamination by MAO-A is the quantitatively most relevant metabolic pathway. Systemic exposure of 4-HPAA varied only up to 3-fold, indicating no strong heritable variation in peripheral MAO-A activity. Systolic blood pressure increased by more than 10 mmHg in 71% of the volunteers and correlated strongly with systemic tyramine concentration. In less than 10% of participants, individually variable blood pressure peaks by >40 mmHg above baseline were observed at tyramine concentrations of >60 µg/l. Unexpectedly, the functionally relevant polymorphisms in OCT1 and CYP2D6, including the CYP2D6 poor and ultra-rapid metaboliser genotypes, did not significantly affect tyramine pharmacokinetics or pharmacodynamics. Also, the MOA-A genotypes, which had been associated in several earlier studies with neuropsychiatric phenotypes, had no significant effects on tyramine pharmacokinetics or its metabolism to 4-HPAA. Thus, variation in tyramine pharmacokinetics and pharmacodynamics is not explained by obvious genomic variation, and human tyramine metabolism did not indicate the existence of ultra-low or -high MAO-A activity.
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Affiliation(s)
- Muhammad Rafehi
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Frank Faltraco
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Johannes Matthaei
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Thomas Prukop
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Ole Jensen
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Aileen Grytzmann
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Felix G Blome
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | | | - Ulrich Krings
- Institute of Food Chemistry, Leibniz University, Hannover, Germany
| | - Stefan V Vormfelde
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Mladen V Tzvetkov
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
| | - Jürgen Brockmöller
- Institute of Clinical Pharmacology, University Medical Center Göttingen, Georg-August University, Göttingen, Germany
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Reina JC, Pérez-Victoria I, Martín J, Llamas I. A Quorum-Sensing Inhibitor Strain of Vibrio alginolyticus Blocks Qs-Controlled Phenotypes in Chromobacterium violaceum and Pseudomonas aeruginosa. Mar Drugs 2019; 17:md17090494. [PMID: 31450549 PMCID: PMC6780304 DOI: 10.3390/md17090494] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/14/2019] [Accepted: 08/22/2019] [Indexed: 12/11/2022] Open
Abstract
The cell density-dependent mechanism, quorum sensing (QS), regulates the expression of virulence factors. Its inhibition has been proposed as a promising new strategy to prevent bacterial pathogenicity. In this study, 827 strains from the microbiota of sea anemones and holothurians were screened for their ability to produce quorum-sensing inhibitor (QSI) compounds. The strain M3-10, identified as Vibrio alginolyticus by 16S rRNA gene sequencing, as well as ANIb and dDDH analyses, was selected for its high QSI activity. Bioassay-guided fractionation of the cell pellet extract from a fermentation broth of strain M3-10, followed by LC–MS and NMR analyses, revealed tyramine and N-acetyltyramine as the active compounds. The QS inhibitory activity of these molecules, which was confirmed using pure commercially available standards, was found to significantly inhibit Chromobacterium violaceum ATCC 12472 violacein production and virulence factors, such as pyoverdine production, as well as swarming and twitching motilities, produced by Pseudomonas aeruginosa PAO1. This constitutes the first study to screen QSI-producing strains in the microbiota of anemones and holothurians and provides an insight into the use of naturally produced QSI as a possible strategy to combat bacterial infections.
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Affiliation(s)
- José Carlos Reina
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus Universitario Cartuja s/n, 18071 Granada, Spain
| | - Ignacio Pérez-Victoria
- MEDINA Foundation, Andalusian Center of Excellence for Research into Innovative Medicines, Health Sciences Technological Park (PTS), Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain.
| | - Jesús Martín
- MEDINA Foundation, Andalusian Center of Excellence for Research into Innovative Medicines, Health Sciences Technological Park (PTS), Avda. del Conocimiento 34, 18016 Armilla, Granada, Spain
| | - Inmaculada Llamas
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus Universitario Cartuja s/n, 18071 Granada, Spain.
- Institute of Biotechnology, Biomedical Research Center (CIBM), University of Granada, 18100 Granada, Spain.
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Bashore AC, Liu M, Key CCC, Boudyguina E, Wang X, Carroll CM, Sawyer JK, Mullick AE, Lee RG, Macauley SL, Parks JS. Targeted Deletion of Hepatocyte Abca1 Increases Plasma HDL (High-Density Lipoprotein) Reverse Cholesterol Transport via the LDL (Low-Density Lipoprotein) Receptor. Arterioscler Thromb Vasc Biol 2019; 39:1747-1761. [PMID: 31167565 DOI: 10.1161/atvbaha.119.312382] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The role of hepatocyte Abca1 (ATP binding cassette transporter A1) in trafficking hepatic free cholesterol (FC) into plasma versus bile for reverse cholesterol transport (RCT) is poorly understood. We hypothesized that hepatocyte Abca1 recycles plasma HDL-C (high-density lipoprotein cholesterol) taken up by the liver back into plasma, maintaining the plasma HDL-C pool, and decreasing HDL-mediated RCT into feces. Approach and Results: Chow-fed hepatocyte-specific Abca1 knockout (HSKO) and control mice were injected with human HDL radiolabeled with 125I-tyramine cellobiose (125I-TC; protein) and 3H-cholesteryl oleate (3H-CO). 125I-TC and 3H-CO plasma decay, plasma HDL 3H-CO selective clearance (ie, 3H-125I fractional catabolic rate), liver radiolabel uptake, and fecal 3H-sterol were significantly greater in HSKO versus control mice, supporting increased plasma HDL RCT. Twenty-four hours after 3H-CO-HDL injection, HSKO mice had reduced total hepatic 3H-FC (ie, 3H-CO hydrolyzed to 3H-FC in liver) resecretion into plasma, demonstrating Abca1 recycled HDL-derived hepatic 3H-FC back into plasma. Despite similar liver LDLr (low-density lipoprotein receptor) expression between genotypes, HSKO mice treated with LDLr-targeting versus control antisense oligonucleotide had slower plasma 3H-CO-HDL decay, reduced selective 3H-CO clearance, and decreased fecal 3H-sterol excretion that was indistinguishable from control mice. Increased RCT in HSKO mice was selective for 3H-CO-HDL, since macrophage RCT was similar between genotypes. CONCLUSIONS Hepatocyte Abca1 deletion unmasks a novel and selective FC trafficking pathway that requires LDLr expression, accelerating plasma HDL-selective CE uptake by the liver and promoting HDL RCT into feces, consequently reducing HDL-derived hepatic FC recycling into plasma.
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Affiliation(s)
- Alexander C Bashore
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Mingxia Liu
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Chia-Chi C Key
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Elena Boudyguina
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Xianfeng Wang
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Caitlin M Carroll
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (C.M.C., S.L.M.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Janet K Sawyer
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Adam E Mullick
- Cardiovascular, Renal and Metabolic Group, Department of Antisense Drug Discovery, Ionis Pharmaceuticals, Inc, Carlsbad, CA (A.E.M., R.G.L.)
| | - Richard G Lee
- Cardiovascular, Renal and Metabolic Group, Department of Antisense Drug Discovery, Ionis Pharmaceuticals, Inc, Carlsbad, CA (A.E.M., R.G.L.)
| | - Shannon L Macauley
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (C.M.C., S.L.M.), Wake Forest School of Medicine, Winston-Salem, NC
| | - John S Parks
- From the Department of Internal Medicine, Section of Molecular Medicine (A.C.B., M.L., C-C.C.K., E.B., X.W., J.K.S., J.S.P.), Wake Forest School of Medicine, Winston-Salem, NC
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Yeung AWK, Georgieva MG, Atanasov AG, Tzvetkov NT. Monoamine Oxidases (MAOs) as Privileged Molecular Targets in Neuroscience: Research Literature Analysis. Front Mol Neurosci 2019; 12:143. [PMID: 31191248 PMCID: PMC6549493 DOI: 10.3389/fnmol.2019.00143] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 05/16/2019] [Indexed: 01/04/2023] Open
Abstract
Background: Monoamine oxidases (MAOs) were discovered nearly a century ago. This article aims to analyze the research literature landscape associated with MAOs as privileged class of neuronal enzymes (neuroenzymes) with key functions in the processes of neurodegeneration, serving as important biological targets in neuroscience. With the accumulating publications on this topic, we aimed to evaluate the publication and citation performance of the contributors, reveal the popular research themes, and identify its historical roots. Methods: The electronic database of Web of Science (WoS) Core Collection was searched to identify publications related to MAOs, which were analyzed according to their publication year, authorship, institutions, countries/regions, journal title, WoS category, total citation count, and publication type. VOSviewer was utilized to visualize the citation patterns of the words appearing in the titles and abstracts, and author keywords. CRExplorer was utilized to identify seminal references cited by the MAO publications. Results: The literature analysis was based on 19,854 publications. Most of them were original articles (n = 15,148, 76.3%) and reviews (n = 2,039, 10.3%). The top five WoS categories of the analyzed MAO publications were Pharmacology/Pharmacy (n = 4,664, 23.5%), Neurosciences (n = 4,416, 22.2%), Psychiatry (n = 2,906, 14.6%), Biochemistry/Molecular Biology (n = 2,691, 13.6%), and Clinical Neurology (n = 1,754, 8.8%). The top 10 institutions are scattered in the United States, UK, France, Sweden, Canada, Israel, and Russia, while the top 10 countries/regions with the most intensive research on the field of MAOs are the United States, followed by European and Asian countries. More highly cited publications generally involved neurotransmitters, such as dopamine (DA), serotonin, and norepinephrine (NE), as well as the MAO-A inhibitors moclobemide and clorgyline, and the irreversible MAO-B inhibitors selegiline and rasagiline. Conclusion: Through decades of research, the literature has accumulated many publications investigating the therapeutic effects of MAO inhibitors (MAOIs) on various neurological conditions, such as Alzheimer's disease (AD), Parkinson's disease (PD), and depression. We envision that MAO literature will continue to grow steadily, with more new therapeutic candidates being tested for better management of neurological conditions, in particular, with the development of multi-target acting drugs against neurodegenerative diseases.
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Affiliation(s)
- Andy Wai Kan Yeung
- Oral and Maxillofacial Radiology, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Maya G Georgieva
- Department of Biochemical Pharmacology and Drug Design, Institute of Molecular Biology Roumen Tsanev, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Atanas G Atanasov
- The Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Magdalenka, Poland.,Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Nikolay T Tzvetkov
- Department of Biochemical Pharmacology and Drug Design, Institute of Molecular Biology Roumen Tsanev, Bulgarian Academy of Sciences, Sofia, Bulgaria
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del Rio B, Sánchez-Llana E, Redruello B, Magadan AH, Fernández M, Martin MC, Ladero V, Alvarez MA. Enterococcus faecalis Bacteriophage 156 Is an Effective Biotechnological Tool for Reducing the Presence of Tyramine and Putrescine in an Experimental Cheese Model. Front Microbiol 2019; 10:566. [PMID: 30949154 PMCID: PMC6435515 DOI: 10.3389/fmicb.2019.00566] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/05/2019] [Indexed: 12/13/2022] Open
Abstract
Biogenic amines (BA) - nitrogenous compounds of low molecular weight - are the result of metabolism of certain amino acids. They are biologically present in all living organisms and play essential physiological roles. However, their accumulation in foodstuffs due to the metabolic activity of certain microorganisms represents a toxicological risk. Containing such microorganisms, and with an abundance of precursor substrate amino acids, fermented foods in general, and cheeses in particular, provide an ideal matrix for the accumulation of these toxic compounds. Unfortunately, the main microorganisms responsible for BA accumulation are members of the lactic acid bacteria (LAB) group, which are also essential for the development of the organoleptic characteristics of the final product. The methods used to reduce the BA content of cheese, such as milk pasteurization, commonly fail to do so, and affect desirable non-BA-producing LAB as well. Bacteriophages have been proposed as biotechnological tools for diminishing the presence of undesirable microorganisms in dairy products. Given their specificity, they could be used to target the population of BA-producing bacteria. In this work, we aimed to explore the use of Enterococcus faecalis infecting phages as a tool to reduce the content of BA in dairy products. For this, we proceeded to the isolation and characterization of E. faecalis bacteriophage 156, a member of the family Myoviridae. Its genome was sequenced and compared with that of E. faecalis family Myoviridae phages available in public databases. Its capacity to decrease the accumulation of the BA tyramine and putrescine in an experimental laboratory-scale cheese model was proven.
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Affiliation(s)
- Beatriz del Rio
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Esther Sánchez-Llana
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Begoña Redruello
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Alfonso H. Magadan
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, Université de Bretagne Occidentale, Plouzané, France
| | - María Fernández
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Maria Cruz Martin
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Victor Ladero
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
| | - Miguel A. Alvarez
- Department of Biotechnology of Dairy Products, Institute of Dairy Products of Asturias – Spanish National Research Council (IPLA-CSIC), Villaviciosa, Spain
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Jin YH, Lee JH, Park YK, Lee JH, Mah JH. The Occurrence of Biogenic Amines and Determination of Biogenic Amine-Producing Lactic Acid Bacteria in Kkakdugi and Chonggak Kimchi. Foods 2019; 8:E73. [PMID: 30769885 PMCID: PMC6406508 DOI: 10.3390/foods8020073] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 02/08/2019] [Accepted: 02/12/2019] [Indexed: 01/18/2023] Open
Abstract
In this study, biogenic amine content in two types of fermented radish kimchi (Kkakdugi and Chonggak kimchi) was determined by high performance liquid chromatography (HPLC). While most samples had low levels of biogenic amines, some samples contained histamine content over the toxicity limit. Additionally, significant amounts of total biogenic amines were detected in certain samples due to high levels of putrefactive amines. As one of the significant factors influencing biogenic amine content in both radish kimchi, Myeolchi-aekjoet appeared to be important source of histamine. Besides, tyramine-producing strains of lactic acid bacteria existed in both radish kimchi. Through 16s rRNA sequencing analysis, the dominant species of tyramine-producing strains was identified as Lactobacillus brevis, which suggests that the species is responsible for tyramine formation in both radish kimchi. During fermentation, a higher tyramine accumulation was observed in both radish kimchi when L. brevis strains were used as inocula. The addition of Myeolchi-aekjeot affected the initial concentrations of histamine and cadaverine in both radish kimchi. Therefore, this study suggests that reducing the ratio of Myeolchi-aekjeot to other ingredients (and/or using Myeolchi-aekjeot with low biogenic amine content) and using starter cultures with ability to degrade and/or inability to produce biogenic amines would be effective in reducing biogenic amine content in Kkakdugi and Chonggak kimchi.
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Affiliation(s)
- Young Hun Jin
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.
| | - Jae Hoan Lee
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.
| | - Young Kyung Park
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.
| | - Jun-Hee Lee
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.
| | - Jae-Hyung Mah
- Department of Food and Biotechnology, Korea University, 2511 Sejong-ro, Sejong 30019, Korea.
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Cook CN, Mosquiero T, Brent CS, Ozturk C, Gadau J, Pinter-Wollman N, Smith BH. Individual differences in learning and biogenic amine levels influence the behavioural division between foraging honeybee scouts and recruits. J Anim Ecol 2019; 88:236-246. [PMID: 30289166 PMCID: PMC6379132 DOI: 10.1111/1365-2656.12911] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 08/31/2018] [Indexed: 11/29/2022]
Abstract
Animals must effectively balance the time they spend exploring the environment for new resources and exploiting them. One way that social animals accomplish this balance is by allocating these two tasks to different individuals. In honeybees, foraging is divided between scouts, which tend to explore the landscape for novel resources, and recruits, which tend to exploit these resources. Exploring the variation in cognitive and physiological mechanisms of foraging behaviour will provide a deeper understanding of how the division of labour is regulated in social insect societies. Here, we uncover how honeybee foraging behaviour may be shaped by predispositions in performance of latent inhibition (LI), which is a form of non-associative learning by which individuals learn to ignore familiar information. We compared LI between scouts and recruits, hypothesizing that differences in learning would correlate with differences in foraging behaviour. Scouts seek out and encounter many new odours while locating novel resources, while recruits continuously forage from the same resource, even as its quality degrades. We found that scouts show stronger LI than recruits, possibly reflecting their need to discriminate forage quality. We also found that scouts have significantly elevated tyramine compared to recruits. Furthermore, after associative odour training, recruits have significantly diminished octopamine in their brains compared to scouts. These results suggest that individual variation in learning behaviour shapes the phenotypic behavioural differences between different types of honeybee foragers. These differences in turn have important consequences for how honeybee colonies interact with their environment. Uncovering the proximate mechanisms that influence individual variation in foraging behaviour is crucial for understanding the ecological context in which societies evolve.
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Affiliation(s)
- Chelsea N Cook
- Arizona State University, School of Life Sciences, Tempe, Arizona
| | - Thiago Mosquiero
- University of California at Los Angeles, Department of Evolutionary Biology, Los Angeles, California
| | - Colin S. Brent
- USDA – ALARC, Department of Pest Management, Maricopa, Arizona
| | - Cahit Ozturk
- Arizona State University, School of Life Sciences, Tempe, Arizona
| | - Jürgen Gadau
- Institute for Evolution and Biodiversity, University of Münster Germany
| | - Noa Pinter-Wollman
- University of California at Los Angeles, Department of Evolutionary Biology, Los Angeles, California
| | - Brian H. Smith
- Arizona State University, School of Life Sciences, Tempe, Arizona
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Rubin RP. Joshua Harold Burn (1892-1981): A visionary during the evolution of pharmacology as a biomedical discipline. J Med Biogr 2019; 27:61-65. [PMID: 30556478 DOI: 10.1177/0967772016685908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This article encapsulates the career of Joshua Burn, whose work encouraged new lines of experimentation and paved the way for fundamental advances in our knowledge of the autonomic nervous system. His legacy also endures in his efforts as Department Chairman to oversee a very supportive environment which led to the development of many successful scientists. By producing a body of work that enabled the discipline of pharmacology to contribute in a major way to the advancement of clinical medicine, Joshua Burn stands out as a unique figure in the annals of true scientific pioneers.
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Affiliation(s)
- Ronald P Rubin
- Department of Pharmacology and Toxicology, Jacobs School of Medicine, the State University of New York at Buffalo, Buffalo, NY, USA
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Lin TH, Wang HC, Cheng WH, Hsu HC, Yeh ML. Osteochondral Tissue Regeneration Using a Tyramine-Modified Bilayered PLGA Scaffold Combined with Articular Chondrocytes in a Porcine Model. Int J Mol Sci 2019; 20:ijms20020326. [PMID: 30650528 PMCID: PMC6359257 DOI: 10.3390/ijms20020326] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 12/28/2022] Open
Abstract
Repairing damaged articular cartilage is challenging due to the limited regenerative capacity of hyaline cartilage. In this study, we fabricated a bilayered poly (lactic-co-glycolic acid) (PLGA) scaffold with small (200–300 μm) and large (200–500 μm) pores by salt leaching to stimulate chondrocyte differentiation, cartilage formation, and endochondral ossification. The scaffold surface was treated with tyramine to promote scaffold integration into native tissue. Porcine chondrocytes retained a round shape during differentiation when grown on the small pore size scaffold, and had a fibroblast-like morphology during transdifferentiation in the large pore size scaffold after five days of culture. Tyramine-treated scaffolds with mixed pore sizes seeded with chondrocytes were pressed into three-mm porcine osteochondral defects; tyramine treatment enhanced the adhesion of the small pore size scaffold to osteochondral tissue and increased glycosaminoglycan and collagen type II (Col II) contents, while reducing collagen type X (Col X) production in the cartilage layer. Col X content was higher for scaffolds with a large pore size, which was accompanied by the enhanced generation of subchondral bone. Thus, chondrocytes seeded in tyramine-treated bilayered scaffolds with small and large pores in the upper and lower parts, respectively, can promote osteochondral regeneration and integration for articular cartilage repair.
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Affiliation(s)
- Tzu-Hsiang Lin
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan 701, Taiwan.
| | - Hsueh-Chun Wang
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan 701, Taiwan.
| | - Wen-Hui Cheng
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan 701, Taiwan.
| | - Horng-Chaung Hsu
- Department of Orthopedics, China Medical University Hospital, 2 Yude Rd., Taichung 40447, Taiwan.
| | - Ming-Long Yeh
- Department of Biomedical Engineering, National Cheng Kung University, 1 University Rd., Tainan 701, Taiwan.
- Medical Device Innovation Center, National Cheng Kung University, 1 University Rd., Tainan 701, Taiwan.
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Sánchez-Pérez S, Comas-Basté O, Rabell-González J, Veciana-Nogués MT, Latorre-Moratalla ML, Vidal-Carou MC. Biogenic Amines in Plant-Origin Foods: Are They Frequently Underestimated in Low-Histamine Diets? Foods 2018; 7:E205. [PMID: 30558197 DOI: 10.3390/foods7120205] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/05/2018] [Accepted: 12/12/2018] [Indexed: 12/15/2022] Open
Abstract
Low-histamine diets are currently used to reduce symptoms of histamine intolerance, a disorder in histamine homeostasis that increases plasma levels, mainly due to reduced diamine-oxidase (DAO) activity. These diets exclude foods, many of them of plant origin, which patients associate with the onset of the symptomatology. This study aimed to review the existing data on histamine and other biogenic amine contents in nonfermented plant-origin foods, as well as on their origin and evolution during the storage or culinary process. The only plant-origin products with significant levels of histamine were eggplant, spinach, tomato, and avocado, each showing a great variability in content. Putrescine has been found in practically all plant-origin foods, probably due to its physiological origin. The high contents of putrescine in certain products could also be related to the triggering of the symptomatology by enzymatic competition with histamine. Additionally, high spermidine contents found in some foods should also be taken into account in these diets, because it can also be metabolized by DAO, albeit with a lower affinity. It is recommended to consume plant-origin foods that are boiled or are of maximum freshness to reduce biogenic amine intake.
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Rydz A, Gryl M, Stadnicka KM. Solvomorphs of tyraminium 5,5-diethylbarbiturate: a rare example of the barbiturate R 33(12) hydrogen-bond motif and a crystal structure with Z' = 4. Acta Crystallogr C Struct Chem 2018; 74:1586-1594. [PMID: 30516141 DOI: 10.1107/s205322961801433x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 10/11/2018] [Indexed: 11/11/2022]
Abstract
In the past two decades, the solvomorphism phenomenon in organic materials has attracted much attention, especially in the pharmaceutical and materials industries. Cocrystallization with solvent molecules can lead to modified physical and chemical properties of materials. We present here two new solvomorphs (pseudopolymorphs) of tyraminium 5,5-diethylbarbiturate [2-(4-hydroxyphenyl)ethanaminium 5,5-diethyl-2,4,6-trioxotetrahydro-2H-pyrimidin-1-ide, C8H12NO+·C8H11N2O3-] with unusual structural features. Pseudopolymorph (I) follows the symmetry of the P21/n space group and has four tyraminium cations, four barbitalate anions and four molecules of chloroform in the asymmetric unit. Pseudopolymorph (II) crystallizes in the space group R-3c with one tyraminium cation, one barbitalate anion and a small amount of disordered solvent (ethanol and water) located in the cavities. Hirshfeld surface analysis and the Non-Covalent Interaction (NCI) index were used to examine and compare the crystal packing features and intermolecular interactions in (I) and (II). Both materials crystallize with large unit cells and contain nontypical barbitalate ions formed through deprotonation of the barbital N3 position. Pseudopolymorph (I) is an example of a crystal structure with a rarely observed value of Z' = 4. Analysis of the hydrogen-bond patterns in (II) showed an unusual arrangement of three barbitalate anions in R33(12) rings, which is the first example of such a hydrogen-bond motif in barbital structures. The mutual arrangement of the ions in the crystal structure of (II) leads to the formation of specific cavities along the c direction.
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Affiliation(s)
- Agnieszka Rydz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Katarzyna M Stadnicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
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Özogul F, Šimat V, Gokdogan S, Regenstein JM, Özogul Y. Effect of Natural Zeolite (Clinoptilolite) on in vitro Biogenic Amine Production by Gram Positive and Gram Negative Pathogens. Front Microbiol 2018; 9:2585. [PMID: 30410482 PMCID: PMC6209737 DOI: 10.3389/fmicb.2018.02585] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/10/2018] [Indexed: 11/13/2022] Open
Abstract
The effect of two levels of clinoptilolite (1 and 5%) on the production of biogenic amines (BA) and ammonia (AMN) by Gram positive (Staphylococcus aureus, Enterococcus faecalis, and Listeria monocytogenes) and Gram negative bacteria (Aeromonas hydrophila, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, and Salmonella Parathypi A), in tyrosine decarboxylase broth (TDB) was studied. A. hydrophila and E. coli produced the highest amounts of amines which were 1223.06 and 2627.90 mg/l, respectively. All strains were able to decarboxylate tyrosine to tyramine (TYR) with E. coli being the highest (1657.19 mg/l). A. hydrophila formed >50 mg/l histamine (HIS) while the other strains produced none or very low concentrations (<4 mg/l). Among Gram-positive pathogens, E. faecalis was characterized as the main amine producer (478.23 mg/l). Although dependent on bacterial strain and level used, the natural zeolite clinoptilolite can be used to decrease BA and AMN production by bacterial strains that are of health concern. Practical Applications: Uses of natural prodcuts for biogenic amines inhibition. Clinoptilolite was used to reduce the amounts of amines such as spermine, putrescine, and dopamine produced by pathogenic and spoilage bacteria.
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Affiliation(s)
- Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Vida Šimat
- Department of Marine Studies, University of Split, Split, Croatia
| | - Saadet Gokdogan
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Joe M Regenstein
- Department of Food Science, Cornell University, Ithaca, NY, United States
| | - Yesim Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
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Abstract
Over the past four decades, Drosophila melanogaster has become an increasingly important model system for studying the modulation of chemical synapses and muscle contraction by cotransmitters and neurohormones. This review describes how advantages provided by Drosophila have been utilized to investigate synaptic modulation, and it discusses key findings from investigations of cotransmitters and neurohormones that act on body wall muscles of 3rd instar Drosophila larvae. These studies have contributed much to our understanding of how neuromuscular systems are modulated by neuropeptides and biogenic amines, but there are still gaps in relating these peripheral modulatory effects to behavior.
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Affiliation(s)
- Kiel G Ormerod
- a Department of Biology , Massachusetts Institute of Technology , Cambridge , MA , USA
| | - JaeHwan Jung
- b Department of Biological Sciences , Brock University , St. Catharines , Canada
| | - A Joffre Mercier
- b Department of Biological Sciences , Brock University , St. Catharines , Canada
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