Biogenic Amines on Food Safety
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Neurotransmitter Resource Guide
NEUROTRANSMITTER RESOURCE GUIDE Science + Insight doctorsdata.com Doctor’s Data, Inc. Neurotransmitter RESOURCE GUIDE Table of Contents Sample Report Sample Report ........................................................................................................................................................................... 1 Analyte Considerations Phenylethylamine (B-phenylethylamine or PEA) ................................................................................................. 1 Tyrosine .......................................................................................................................................................................................... 3 Tyramine ........................................................................................................................................................................................4 Dopamine .....................................................................................................................................................................................6 3, 4-Dihydroxyphenylacetic Acid (DOPAC) ............................................................................................................... 7 3-Methoxytyramine (3-MT) ............................................................................................................................................... 9 Norepinephrine ........................................................................................................................................................................ -
Impact of Using Organic Yeast in the Fermentation Process of Wine
processes Article Impact of Using Organic Yeast in the Fermentation Process of Wine Balázs Nagy 1, Zsuzsanna Varga 2,Réka Matolcsi 1, Nikolett Kellner 1 , Áron Szövényi 1 and Diána Nyitrainé Sárdy 1,* 1 Faculty of Horticultural Science Department of Oenology, Szent István University, 1118 Budapest, Hungary; [email protected] (B.N.); [email protected] (R.M.); [email protected] (N.K.); [email protected] (Á.S.) 2 Faculty of Horticultural Science Department of Viticulture, Szent István University, 1118 Budapest, Hungary; [email protected] * Correspondence: [email protected] Abstract: The aim of this study was to find out what kind of “Bianca” wine could be produced when using organic yeast, what are the dynamics of the resulting alcoholic fermentation, and whether this method is suitable for industrial production as well. Due to the stricter rules and regulations, as well as the limited amount and selection of the permitted chemicals, resistant, also known as interspecific or innovative grape varieties, can be the ideal basic materials of alternative cultivation technologies. Well-designed analytical and organoleptic results have to provide the scientific background of resistant varieties, as these cultivars and their environmentally friendly cultivation techniques could be the raw materials of the future. The role of the yeast in wine production is crucial. We fermented wines from the “Bianca” juice samples three times where model chemical solutions were applied. In our research, we aimed to find out how organic yeast influenced the biogenic amine formation of three important compounds: histamine, tyramine, and serotonin. The main results of this study showed that all the problematic values (e.g., histamine) were under the critical limit (1 g/L), although the organic samples resulted in a significantly higher level than the control wines. -
The Significance of Lactobacillus Crispatus and L. Vaginalis for Vaginal Health and the Negative Effect of Recent
Jespers et al. BMC Infectious Diseases (2015) 15:115 DOI 10.1186/s12879-015-0825-z RESEARCH ARTICLE Open Access The significance of Lactobacillus crispatus and L. vaginalis for vaginal health and the negative effect of recent sex: a cross-sectional descriptive study across groups of African women Vicky Jespers1*, Janneke van de Wijgert2, Piet Cools3, Rita Verhelst4, Hans Verstraelen5, Sinead Delany-Moretlwe6, Mary Mwaura7, Gilles F Ndayisaba8, Kishor Mandaliya7, Joris Menten9, Liselotte Hardy1,10, Tania Crucitti10 and for the Vaginal Biomarkers Study Group Abstract Background: Women in sub-Saharan Africa are vulnerable to acquiring HIV infection and reproductive tract infections. Bacterial vaginosis (BV), a disruption of the vaginal microbiota, has been shown to be strongly associated with HIV infection. Risk factors related to potentially protective or harmful microbiota species are not known. Methods: We present cross-sectional quantitative polymerase chain reaction data of the Lactobacillus genus, five Lactobacillus species, and three BV-related bacteria (Gardnerella vaginalis, Atopobium vaginae,andPrevotella bivia) together with Escherichia coli and Candida albicans in 426 African women across different groups at risk for HIV. We selected a reference group of adult HIV-negative women at average risk for HIV acquisition and compared species variations in subgroups of adolescents, HIV-negative pregnant women, women engaging in traditional vaginal practices, sex workers and a group of HIV-positive women on combination antiretroviral therapy. We explored the associations between presence and quantity of the bacteria with BV by Nugent score, in relation to several factors of known or theoretical importance. Results: The presence of species across Kenyan, South African and Rwandan women was remarkably similar and few differences were seen between the two groups of reference women in Kenya and South Africa. -
The Histidine Decarboxylase Gene Cluster of Lactobacillus Parabuchneri Was Gained by Horizontal Gene Transfer and Is Mobile Within the Species
ORIGINAL RESEARCH published: 17 February 2017 doi: 10.3389/fmicb.2017.00218 The Histidine Decarboxylase Gene Cluster of Lactobacillus parabuchneri Was Gained by Horizontal Gene Transfer and Is Mobile within the Species Daniel Wüthrich 1, Hélène Berthoud 2, Daniel Wechsler 2, Elisabeth Eugster 2, Stefan Irmler 2 and Rémy Bruggmann 1* 1 Interfaculty Bioinformatics Unit and Swiss Institute of Bioinformatics, University of Bern, Bern, Switzerland, 2 Agroscope, Institute for Food Sciences, Bern, Switzerland Histamine in food can cause intolerance reactions in consumers. Lactobacillus parabuchneri (L. parabuchneri) is one of the major causes of elevated histamine levels in cheese. Despite its significant economic impact and negative influence on human health, no genomic study has been published so far. We sequenced and Edited by: analyzed 18 L. parabuchneri strains of which 12 were histamine positive and 6 were Danilo Ercolini, histamine negative. We determined the complete genome of the histamine positive strain University of Naples Federico II, Italy FAM21731 with PacBio as well as Illumina and the genomes of the remaining 17 strains Reviewed by: using the Illumina technology. We developed the synteny aware ortholog finding algorithm Patrick Lucas, University of Bordeaux 1, France SynOrf to compare the genomes and we show that the histidine decarboxylase (HDC) Daniel M. Linares, gene cluster is located in a genomic island. It is very likely that the HDC gene cluster Teagasc - The Irish Agriculture and Food Development Authority, Ireland was transferred from other lactobacilli, as it is highly conserved within several lactobacilli *Correspondence: species. Furthermore, we have evidence that the HDC gene cluster was transferred within Rémy Bruggmann the L. -
A Taxonomic Note on the Genus Lactobacillus
Taxonomic Description template 1 A taxonomic note on the genus Lactobacillus: 2 Description of 23 novel genera, emended description 3 of the genus Lactobacillus Beijerinck 1901, and union 4 of Lactobacillaceae and Leuconostocaceae 5 Jinshui Zheng1, $, Stijn Wittouck2, $, Elisa Salvetti3, $, Charles M.A.P. Franz4, Hugh M.B. Harris5, Paola 6 Mattarelli6, Paul W. O’Toole5, Bruno Pot7, Peter Vandamme8, Jens Walter9, 10, Koichi Watanabe11, 12, 7 Sander Wuyts2, Giovanna E. Felis3, #*, Michael G. Gänzle9, 13#*, Sarah Lebeer2 # 8 '© [Jinshui Zheng, Stijn Wittouck, Elisa Salvetti, Charles M.A.P. Franz, Hugh M.B. Harris, Paola 9 Mattarelli, Paul W. O’Toole, Bruno Pot, Peter Vandamme, Jens Walter, Koichi Watanabe, Sander 10 Wuyts, Giovanna E. Felis, Michael G. Gänzle, Sarah Lebeer]. 11 The definitive peer reviewed, edited version of this article is published in International Journal of 12 Systematic and Evolutionary Microbiology, https://doi.org/10.1099/ijsem.0.004107 13 1Huazhong Agricultural University, State Key Laboratory of Agricultural Microbiology, Hubei Key 14 Laboratory of Agricultural Bioinformatics, Wuhan, Hubei, P.R. China. 15 2Research Group Environmental Ecology and Applied Microbiology, Department of Bioscience 16 Engineering, University of Antwerp, Antwerp, Belgium 17 3 Dept. of Biotechnology, University of Verona, Verona, Italy 18 4 Max Rubner‐Institut, Department of Microbiology and Biotechnology, Kiel, Germany 19 5 School of Microbiology & APC Microbiome Ireland, University College Cork, Co. Cork, Ireland 20 6 University of Bologna, Dept. of Agricultural and Food Sciences, Bologna, Italy 21 7 Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Vrije Universiteit 22 Brussel, Brussels, Belgium 23 8 Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Ghent, 24 Belgium 25 9 Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada 26 10 Department of Biological Sciences, University of Alberta, Edmonton, Canada 27 11 National Taiwan University, Dept. -
Biogenic Amines Formation and Their Importance in Fermented Foods
BIO Web of Conferences 17, 00232 (2020) https://doi.org/10.1051/bioconf/20201700232 FIES 2019 Biogenic amines formation and their importance in fermented foods Kamil Ekici1, ⃰ and Abdullah Khalid Omer2 1University of Van Yȕzȕncȕ Yıl, Veterinary College, Department of Food Hygiene and Technology, Van, Turkey 2Sulaimani Veterinary Directorate, Veterinary Quarantine, Bashmakh International Border, Sulaimani, Iraq Abstract. Biogenic amines (BAs) are low molecular weight organic bases with an aliphatic, aromatic, or heterocyclic structure which have been found in many foods. biogenic amines have been related with several outbreaks of food-borne intoxication and are very important in public health concern because of their potential toxic effects. The accumulation of biogenic amines in foods is mainly due to the presence of bacteria able to decarboxylate certain amino acids. Biogenic amines are formed when the alpha carboxvl group breaks away from free amino acid precursors. They are colled after the amino acid they originated from. The main biogenic amines producers in foods are Gram positive bacteria and cheese is among the most commonly implicated foods associated with biogenic amines poisoning. The consumption of foods containing high concentrations of biogenic amines has been associated with health hazards and they are used as a quality indicator that shows the degree of spoilage, use of non-hygienic raw material and poor manufacturing practice. Biogenic amines may also be considered as carcinogens because they are able to react with nitrites to form potentially carcinogenic nitrosamines. Generally, biogenic amines in foods can be controlled by strict use of good hygiene in both raw material and manufacturing environments with corresponding inhibition of spoiling microorganisms. -
Catecholamine Levels and Activity of Monoamine Oxidase in Some Hypothalamic Structures and in the Pineal Gland of Sheep After Administration of FSH
Physiol. Res. 45:131-136, 1996 Catecholamine Levels and Activity of Monoamine Oxidase in Some Hypothalamic Structures and in the Pineal Gland of Sheep after Administration of FSH B. PASTOROVA, J. VARADY Department of Comparative Physiology , University of Veterinary Medicine, Kosice, Slovak Republic Receded March 6, 1995 Accepted November 13, 1995 Summary The influence of hormonal preparations of FSH in a dose of 24 mg (480 IU) on levels of catecholamine (dopamine, norepinephrine and epinephrine) and the activity of their degradation enzyme monoamine oxidase (MAO) in the hypothalamic regions regulating the reproductive system of sheep (area preoptica, eminentia mediana, corpus mamillare) and pineal gland were investigated in the ocstrous period employing radiochemical methods. The administration of FSH resulted in significant (p<0.001) increases of dopamine levels in the area preoptica and corpus mamillare of the hypothalamus of sheep as compared to control groups with synchronized oestrus. Hormonal stimulation with FSH increased the levels of hypothalamic norepinephrine in the areas studied and these differences were significant in the eminentia mediana (p<0.05) and corpus mamillare (p<0.05). Significant (p<0.001) changes in epinephrine levels were found in the corpus mamillare and area preoptica (p<0.05). Our results indicate that the administration of FSH caused the most pronounced decrease of MAO activity in corpus mamillare (p<0.001). The pineal gland reacted to the hormonal preparation by decreased levels of norepinephrine and dopamine (p<0.001) and by an increase in MAO activity (p<0.01). We suggest that FSH administration affects catecholamine levels and the activity of monoamine oxidase in the studied areas of the brain of sheep by means of a feedback mechanism. -
Effects of the Inhibitor of Glutamate Decarboxylase on the Development
RSC Advances View Article Online PAPER View Journal | View Issue Effects of the inhibitor of glutamate decarboxylase on the development and GABA accumulation in Cite this: RSC Adv.,2018,8,20456 germinating fava beans under hypoxia-NaCl stress Yongqi Yin, Chao Cheng and Weiming Fang* Glutamate decarboxylase (GAD) is the key enzyme in GABA shunt, which catalyzes the a-decarboxylation of glutamate to produce GABA. A specific inhibitor for GAD is convenient to study the dynamic balances of GABA metabolism in plants. The inhibitor of GAD in germinated fava beans was screened, and its inhibitory effect on the growth and GABA accumulation in fava beans during germination under hypoxia- NaCl stress was investigated. The inhibitory effect of aminoxyacetate for fava bean GAD was better than those of other chemicals, and it increased with the increase in concentration in vivo. After aminoxyacetate (5 mM) application for 4 days during germination, the GAD activity in germinating fava beans was significantly inhibited by more than 90% in both organs. Meanwhile, the growth of fava bean Creative Commons Attribution-NonCommercial 3.0 Unported Licence. sprouts was also slightly suppressed. Moreover, the GABA contents decreased by 43.9% and 81.5% in a 4 Received 8th May 2018 day-old cotyledon and embryo, respectively, under aminoxyacetate treatment compared with that in the Accepted 23rd May 2018 control. In summary, these results showed that aminoxyacetate can serve as a specific inhibitor of GAD DOI: 10.1039/c8ra03940b in plants. At least 43.9% and 81.5% of GABA in germinating fava beans under hypoxia-NaCl stress were rsc.li/rsc-advances synthesized via GABA shunt. -
Discovery of Novel Imidazolines and Imidazoles As Selective TAAR1
Discovery of Novel Imidazolines and Imidazoles as Selective TAAR1 Partial Agonists for the Treatment of Psychiatric Disorders Giuseppe Cecere, pRED, Discovery Chemistry F. Hoffmann-La Roche AG, Basel, Switzerland Biological Rationale Trace amines are known for four decades Trace Amines - phenylethylamine p- tyramine p- octopamine tryptamine (PEA) Biogenic Amines dopamine norepinephrine serotonin ( DA) (NE) (5-HT) • Structurally related to classical biogenic amine neurotransmitters (DA, NE, 5-HT) • Co-localised & released with biogenic amines in same cells and vesicles • Low concentrations in CNS, rapidly catabolized by monoamine oxidase (MAO) • Dysregulation linked to psychiatric disorders such as schizophrenia & 2 depression Trace Amines Metabolism 3 Biological Rationale Trace Amine-Associated Receptors (TAARs) p-Tyramine extracellular TAAR1 Discrete family of GPCR’s Subtypes TAAR1-TAAR9 known intracellular Gs Structural similarity with the rhodopsin and adrenergic receptor superfamily adenylate Activation of the TAAR1 cyclase receptor leads to cAMP elevation of intracellular cAMP levels • First discovered in 2001 (Borowsky & Bunzow); characterised and classified at Roche in 2004 • Trace amines are endogenous ligands of TAAR1 • TAAR1 is expressed throughout the limbic and monoaminergic system in the brain Borowsky, B. et al., PNAS 2001, 98, 8966; Bunzow, J. R. et al., Mol. Pharmacol. 2001, 60, 1181. Lindemann L, Hoener MC, Trends Pharmacol Sci 2005, 26, 274. 4 Biological Rationale Electrical activity of dopaminergic neurons + p-tyramine -
Bacterial Communities in Women with Bacterial Vaginosis: High Resolution Phylogenetic Analyses Reveal Relationships of Microbiota to Clinical Criteria
Bacterial Communities in Women with Bacterial Vaginosis: High Resolution Phylogenetic Analyses Reveal Relationships of Microbiota to Clinical Criteria Sujatha Srinivasan1*, Noah G. Hoffman2, Martin T. Morgan3, Frederick A. Matsen3, Tina L. Fiedler1, Robert W. Hall4, Frederick J. Ross3, Connor O. McCoy3, Roger Bumgarner4, Jeanne M. Marrazzo5, David N. Fredricks1,4,5* 1 Vaccine & Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America, 2 Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America, 3 Public Health Science Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America, 4 Department of Microbiology, University of Washington, Seattle, Washington, United States of America, 5 Department of Medicine, University of Washington, Seattle, Washington, United States of America Abstract Background: Bacterial vaginosis (BV) is a common condition that is associated with numerous adverse health outcomes and is characterized by poorly understood changes in the vaginal microbiota. We sought to describe the composition and diversity of the vaginal bacterial biota in women with BV using deep sequencing of the 16S rRNA gene coupled with species-level taxonomic identification. We investigated the associations between the presence of individual bacterial species and clinical diagnostic characteristics of BV. Methodology/Principal Findings: Broad-range 16S rRNA gene PCR and pyrosequencing were performed on vaginal swabs from 220 women with and without BV. BV was assessed by Amsel’s clinical criteria and confirmed by Gram stain. Taxonomic classification was performed using phylogenetic placement tools that assigned 99% of query sequence reads to the species level. Women with BV had heterogeneous vaginal bacterial communities that were usually not dominated by a single taxon. -
Biogenic Amine Reference Materials
Biogenic Amine reference materials Epinephrine (adrenaline), Vanillylmandelic acid (VMA) and homovanillic norepinephrine (noradrenaline) and acid (HVA) are end products of catecholamine metabolism. Increased urinary excretion of VMA dopamine are a group of biogenic and HVA is a diagnostic marker for neuroblastoma, amines known as catecholamines. one of the most common solid cancers in early childhood. They are produced mainly by the chromaffin cells in the medulla of the adrenal gland. Under The biogenic amine, serotonin, is a neurotransmitter normal circumstances catecholamines cause in the central nervous system. A number of disorders general physiological changes that prepare the are associated with pathological changes in body for fight-or-flight. However, significantly serotonin concentrations. Serotonin deficiency is raised levels of catecholamines and their primary related to depression, schizophrenia and Parkinson’s metabolites ‘metanephrines’ (metanephrine, disease. Serotonin excess on the other hand is normetanephrine, and 3-methoxytyramine) are attributed to carcinoid tumours. The determination used diagnostically as markers for the presence of of serotonin or its metabolite 5-hydroxyindoleacetic a pheochromocytoma, a neuroendocrine tumor of acid (5-HIAA) is a standard diagnostic test when the adrenal medulla. carcinoid syndrome is suspected. LGC Quality - ISO Guide 34 • GMP/GLP • ISO 9001 • ISO/IEC 17025 • ISO/IEC 17043 Reference materials Product code Description Pack size Epinephrines and metabolites TRC-E588585 (±)-Epinephrine -
Aminergic Transmitter Systems in Cognitive Disorders
AMINERGIC TRANSMITTER SYSTEMS IN COGNITIVE DISORDERS John P. Bruno1 and Martin Sarter Departments of Psychology and Neuroscience, The Ohio State University Columbus, OH 43210 Running title: Cognitive disorders and aminergic transmission 1 Correspondence: Dr. John P. Bruno Department of Psychology 31 Townshend Hall The Ohio State University Columbus, OH 43210 voice: 614-292-1770 FAX: 614-688-4733 email: [email protected] To appear in: Textbook of Biological Psychiatry (D haenen H, Den Boer JA, Westenberg H, Willner P, eds.), John Wiley and Sons. INTRODUCTION 2 The major categories of cognitive disorders defined in the DSMIV include various types of dementias, deliriums, and amnestic disorders (American Psychological Association, DSMIV, 2000). The goal of this chapter is to present a thorough, but certainly not exhaustive, summary of the evidence for dysregulations in aminergic neurotransmitter systems in several representative cognitive disorders. Aminergic transmitter systems include the biogenic amine acetylcholine (ACh), the catecholamines dopamine (DA), norepinephrine (NE), epinephrine (Epi), and the indoleamine serotonin (5-HT). For a more detailed discussion of the neuropharmacology and chemoanatomy of aminergic transmitter systems the reader is referred to the earlier chapter by Mathé and Svensson in this book. Not surprisingly, there is considerable variation in the extent of the literatures on the neurochemical dysregulations accompanying delirium, dementia, and amnestic disorders. The scope of our review will be limited to several syndromes for which there is considerable evidence implicating specific aminergic transmitter systems to these cognitive disorders. Thus, the discussion of the dementias will be limited to dementia of the Alzheimer s type (DAT) and AIDS-associated dementia (AAD).