Managing Biotransformation: the Metabolic, Genomic, and Detoxification Balance Points
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Detoxification Strategies for Zearalenone Using
microorganisms Review Detoxification Strategies for Zearalenone Using Microorganisms: A Review 1, 2, 1 1, Nan Wang y, Weiwei Wu y, Jiawen Pan and Miao Long * 1 Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China 2 Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi 830000, China * Correspondence: [email protected] or [email protected] These authors contributed equally to this work. y Received: 21 June 2019; Accepted: 19 July 2019; Published: 21 July 2019 Abstract: Zearalenone (ZEA) is a mycotoxin produced by Fusarium fungi that is commonly found in cereal crops. ZEA has an estrogen-like effect which affects the reproductive function of animals. It also damages the liver and kidneys and reduces immune function which leads to cytotoxicity and immunotoxicity. At present, the detoxification of mycotoxins is mainly accomplished using biological methods. Microbial-based methods involve zearalenone conversion or adsorption, but not all transformation products are nontoxic. In this paper, the non-pathogenic microorganisms which have been found to detoxify ZEA in recent years are summarized. Then, two mechanisms by which ZEA can be detoxified (adsorption and biotransformation) are discussed in more detail. The compounds produced by the subsequent degradation of ZEA and the heterogeneous expression of ZEA-degrading enzymes are also analyzed. The development trends in the use of probiotics as a ZEA detoxification strategy are also evaluated. The overall purpose of this paper is to provide a reliable reference strategy for the biological detoxification of ZEA. Keywords: zearalenone (ZEA); reproductive toxicity; cytotoxicity; immunotoxicity; biological detoxification; probiotics; ZEA biotransformation 1. -
Medications to Treat Opioid Use Disorder Research Report
Research Report Revised Junio 2018 Medications to Treat Opioid Use Disorder Research Report Table of Contents Medications to Treat Opioid Use Disorder Research Report Overview How do medications to treat opioid use disorder work? How effective are medications to treat opioid use disorder? What are misconceptions about maintenance treatment? What is the treatment need versus the diversion risk for opioid use disorder treatment? What is the impact of medication for opioid use disorder treatment on HIV/HCV outcomes? How is opioid use disorder treated in the criminal justice system? Is medication to treat opioid use disorder available in the military? What treatment is available for pregnant mothers and their babies? How much does opioid treatment cost? Is naloxone accessible? References Page 1 Medications to Treat Opioid Use Disorder Research Report Discusses effective medications used to treat opioid use disorders: methadone, buprenorphine, and naltrexone. Overview An estimated 1.4 million people in the United States had a substance use disorder related to prescription opioids in 2019.1 However, only a fraction of people with prescription opioid use disorders receive tailored treatment (22 percent in 2019).1 Overdose deaths involving prescription opioids more than quadrupled from 1999 through 2016 followed by significant declines reported in both 2018 and 2019.2,3 Besides overdose, consequences of the opioid crisis include a rising incidence of infants born dependent on opioids because their mothers used these substances during pregnancy4,5 and increased spread of infectious diseases, including HIV and hepatitis C (HCV), as was seen in 2015 in southern Indiana.6 Effective prevention and treatment strategies exist for opioid misuse and use disorder but are highly underutilized across the United States. -
Defence Mechanisms of Brassicaceae: Implications for Plant-Insect Interactions and Potential for Integrated Pest Management
Agron. Sustain. Dev. 30 (2010) 311–348 Available online at: c INRA, EDP Sciences, 2009 www.agronomy-journal.org DOI: 10.1051/agro/2009025 for Sustainable Development Review article Defence mechanisms of Brassicaceae: implications for plant-insect interactions and potential for integrated pest management. A review Ishita Ahuja,JensRohloff, Atle Magnar Bones* Department of Biology, Norwegian University of Science and Technology, Realfagbygget, NO-7491 Trondheim, Norway (Accepted 5 July 2009) Abstract – Brassica crops are grown worldwide for oil, food and feed purposes, and constitute a significant economic value due to their nutritional, medicinal, bioindustrial, biocontrol and crop rotation properties. Insect pests cause enormous yield and economic losses in Brassica crop production every year, and are a threat to global agriculture. In order to overcome these insect pests, Brassica species themselves use multiple defence mechanisms, which can be constitutive, inducible, induced, direct or indirect depending upon the insect or the degree of insect attack. Firstly, we give an overview of different Brassica species with the main focus on cultivated brassicas. Secondly, we describe insect pests that attack brassicas. Thirdly, we address multiple defence mechanisms, with the main focus on phytoalexins, sulphur, glucosinolates, the glucosinolate-myrosinase system and their breakdown products. In order to develop pest control strategies, it is important to study the chemical ecology, and insect behaviour. We review studies on oviposition regulation, multitrophic interactions involving feeding and host selection behaviour of parasitoids and predators of herbivores on brassicas. Regarding oviposition and trophic interactions, we outline insect oviposition behaviour, the importance of chemical stimulation, oviposition-deterring pheromones, glucosinolates, isothiocyanates, nitriles, and phytoalexins and their importance towards pest management. -
The Role of Detoxification in the Maintenance of Health Research
The Role of Detoxification in the have been reported as well (Table 1).2-11 Exposure to environmental toxicants can occur from air Maintenance of Health pollution, food supply, and drinking water, in addition to skin contact. For example, epidemiological studies have identified Research Review associations between symptoms of Parkinson’s disease and prolonged exposure to pesticides through farming or drinking TOXINS, TOXICANTS & TOXIC SUBSTANCES well water; proximity in residence to industrial plants, printing The word "toxin" itself does not describe a specific class of plants, or quarries; or chronic occupational exposure to 12 compounds, but rather something that can cause harm to the manganese, copper, or a combination of lead and iron. While body. More specifically, a toxin or toxic substance is a the mechanisms of these toxic exposures are not known, an chemical or mixture that may injure or present an individual’s ability to excrete toxins has been shown to be a 13,14 unreasonable risk of injury to the health of an exposed major factor in disease susceptibility. organism. The National Cancer Institute defines "toxin" as a poisonous compound made by bacteria, plants, or animals; it Table 1. Clinical Symptoms and Conditions Associated with defines “toxicant” as a poison made by humans or that is put Environmental Toxicity into the environment by human activities.1 Each toxic substance has a defined toxic dose or toxic concentration at Abnormal pregnancy outcomes which it produces its toxic effect. Atherosclerosis Broad mood swings Environmental pollutants (referred to as exogenous toxicants) Cancer present at variable levels in the air, drinking water, and food Chronic fatigue syndrome supply. -
Plant Phenolics: Bioavailability As a Key Determinant of Their Potential Health-Promoting Applications
antioxidants Review Plant Phenolics: Bioavailability as a Key Determinant of Their Potential Health-Promoting Applications Patricia Cosme , Ana B. Rodríguez, Javier Espino * and María Garrido * Neuroimmunophysiology and Chrononutrition Research Group, Department of Physiology, Faculty of Science, University of Extremadura, 06006 Badajoz, Spain; [email protected] (P.C.); [email protected] (A.B.R.) * Correspondence: [email protected] (J.E.); [email protected] (M.G.); Tel.: +34-92-428-9796 (J.E. & M.G.) Received: 22 October 2020; Accepted: 7 December 2020; Published: 12 December 2020 Abstract: Phenolic compounds are secondary metabolites widely spread throughout the plant kingdom that can be categorized as flavonoids and non-flavonoids. Interest in phenolic compounds has dramatically increased during the last decade due to their biological effects and promising therapeutic applications. In this review, we discuss the importance of phenolic compounds’ bioavailability to accomplish their physiological functions, and highlight main factors affecting such parameter throughout metabolism of phenolics, from absorption to excretion. Besides, we give an updated overview of the health benefits of phenolic compounds, which are mainly linked to both their direct (e.g., free-radical scavenging ability) and indirect (e.g., by stimulating activity of antioxidant enzymes) antioxidant properties. Such antioxidant actions reportedly help them to prevent chronic and oxidative stress-related disorders such as cancer, cardiovascular and neurodegenerative diseases, among others. Last, we comment on development of cutting-edge delivery systems intended to improve bioavailability and enhance stability of phenolic compounds in the human body. Keywords: antioxidant activity; bioavailability; flavonoids; health benefits; phenolic compounds 1. Introduction Phenolic compounds are secondary metabolites widely spread throughout the plant kingdom with around 8000 different phenolic structures [1]. -
Metabolism of Non-Growing Cells and Their Application in Biotransformation
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 17 July 2020 doi:10.20944/preprints202007.0402.v1 Metabolism of non-growing cells and their application in biotransformation Wenfa Ng Department of Chemical and Biomolecular Engineering, National University of Singapore, Email: [email protected] Abstract Growing cells is the typical mode of operation in many aspects of biotechnology and metabolic engineering. This comes about due to cell growth processes creating a driving force that pull metabolic flux along different metabolic pathways, that indirectly help move substrate to product. But, there is an alternative mode of operation that uses resting (non-growing) cells to achieve similar or even higher productivities. In general, resting cells are provided with carbon substrates for biocatalytic reactions but starved of nitrogen or phosphorus. Such resting cells have been usefully employed in many forms of biocatalysis and biotransformation, with or without cofactor regeneration. However, much remains unknown about the transcriptome and metabolome of resting cells in biotransformation settings. This short writeup provides the backdrop of resting cells in biocatalysis, documents their use in biotransformation with application examples, and identifies research gaps that could be filled with contemporary RNA- seq and mass spectrometry proteomics technology. Overall, utility of resting cells in biocatalysis and the extant knowledge gap in their fundamental physiology are highlighted in this resource. Keywords: resting cells, biocatalysis, cofactor regeneration, transcriptome, biotransformations, Subject areas: biochemistry, biotechnology, bioinformatics, systems biology, molecular biology, Non-growing (resting) cells in biotransformation Biotransformations sought the use of enzymes and whole cells for the conversion of substrates into desired products. Typically, whole cell biocatalysts are used given problems with instability and purification of pure enzymes. -
Help Prevent Relapse to Opioid Dependence After Opioid
For Opioid Dependence HELP REINFORCE YOUR RECOVERY Help prevent relapse to opioid dependence after opioid detoxification with a non-addictive, once-monthly treatment used with counseling.1,2 VIVITROL® is a prescription injectable medicine used to: Prevent relapse to opioid dependence after opioid detox. You must stop taking opioids or other opioid-containing medications before starting VIVITROL. To be effective, VIVITROL must be used with other alcohol or drug recovery programs, such as counseling. It is not known if VIVITROL is safe and effective in children. See important information about possible side effects with VIVITROL treatment throughout this brochure. Read the Brief Summary of Important Facts about VIVITROL on pages 5–6. This information does not take the place of talking with your healthcare provider. BRIEF SUMMARY OF IMPORTANT FACTS ABOUT VIVITROL ARE YOU OR YOUR LOVED ONE READY TO MOVE FORWARD? Opioid addiction is a chronic brain disease defined by an uncontrollable urge to seek and use opioids, like heroin or prescription pain medication. Because addiction changes the way the brain works, most patients need ongoing care in the form of counseling and medication.3 Discuss all benefits and risks of VIVITROL with your healthcare provider and whether VIVITROL may be right for you. Call your healthcare provider for medical advice about any side effects. PRESCRIBING See important information on possible side effects with VIVITROL treatment throughout this brochure. MEDICATION GUIDE Read the Brief Summary of Important Facts about VIVITROL by clicking the button in the top right-hand INFORMATION 2 corner. This information does not take the place of talking with your healthcare provider. -
An Operating System for Integrative Medicine Jeffrey Bland,Phd, Associate Editor
CREATING SYNTHESIS Functional Medicine: An Operating System for Integrative Medicine Jeffrey Bland, PhD, Associate Editor Jeffrey Bland, PhD, is the chairman emeritus of the Institute For thousands of years, practices have been used in for Functional Medicine, and he is the founder and president various cultures that promote healing and wellness. These of the Personalized Lifestyle Medicine Institute. approaches—among them things such as traditional Chinese medicine, ayurvedic medicine, acupuncture, herbal medicine, yoga, homeopathy, meditation, mind/body techniques—are holistic in nature and often have been a student of and advocate for molecular look beyond the body to include the mind and spirit as medicine the past 40 years. From my experience from well. Those of us who have focused our careers on wellness 1981 to 1983 at the Linus Pauling Institute of Science know that mindfulness and lifestyle choices are key tools Iand Medicine, I came to better understand how molecular in maintaining health and treating illness. And yet for medicine fits together with what was emerging to be called much of the 20th century, Western medicine maintained a integrative medicine. suspicion of—and in some cases even outright distain At first it seemed as if these 2 models were mutually for—these practices that fall under the banner of integrative exclusive, with molecular medicine being seen as medicine. The emerging science underlying molecular mechanistic and reductionist in its formalism, and medicine, however, was starting to develop a mechanistic integrative medicine being more experientially and understanding of how these therapies work that would culturally rooted in observation. My experience at the allow them to be applied more successfully to people in Pauling Institute, where I had the opportunity to interact need. -
Factors Influencing Sulforaphane Content in Broccoli Sprouts and Subsequent Sulforaphane Extraction
foods Article Factors Influencing Sulforaphane Content in Broccoli Sprouts and Subsequent Sulforaphane Extraction Jan Tˇríska 1, Josef Balík 2, Milan Houška 3, Pavla Novotná 3, Martin Magner 4,5, NadˇeždaVrchotová 1, Pavel Híc 2, Ladislav Jílek 6, KateˇrinaThorová 7, Petr Šnurkoviˇc 2 and Ivo Soural 2,* 1 Global Change Research Institute CAS, 603 00 Brno, Czech Republic; [email protected] (J.T.); [email protected] (N.V.) 2 Faculty of Horticulture, Mendel University in Brno, 691 44 Lednice, Czech Republic; [email protected] (J.B.); [email protected] (P.H.); [email protected] (P.Š.) 3 Food Research Institute Prague (FRIP), 102 00 Prague 10, Czech Republic; [email protected] (M.H.); [email protected] (P.N.) 4 Department of Pediatrics, University Thomayer Hospital, First Faculty of Medicine, Charles University, 140 59 Prague 4, Czech Republic; [email protected] or [email protected] 5 Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, General University Hospital, 128 08 Prague 2, Czech Republic 6 Pure Food Norway, 1400 Ski, Norway; [email protected] 7 National Institute for Autism, 182 00 Prague 8, Czech Republic; [email protected] * Correspondence: [email protected] Abstract: Broccoli sprouts contain 10–100 times higher levels of sulforaphane than mature plants, something that has been well known since 1997. Sulforaphane has a whole range of unique biological Citation: Tˇríska,J.; Balík, J.; Houška, properties, and it is especially an inducer of phase 2 detoxication enzymes. Therefore, its use has M.; Novotná, P.; Magner, M.; been intensively studied in the field of health and nutrition. -
(Raphanus Sativus L.) Based on Comparative
www.nature.com/scientificreports OPEN Insights into the species-specifc metabolic engineering of glucosinolates in radish (Raphanus Received: 10 January 2017 Accepted: 9 November 2017 sativus L.) based on comparative Published: xx xx xxxx genomic analysis Jinglei Wang1, Yang Qiu1, Xiaowu Wang1, Zhen Yue2, Xinhua Yang2, Xiaohua Chen1, Xiaohui Zhang1, Di Shen1, Haiping Wang1, Jiangping Song1, Hongju He3 & Xixiang Li1 Glucosinolates (GSLs) and their hydrolysis products present in Brassicales play important roles in plants against herbivores and pathogens as well as in the protection of human health. To elucidate the molecular mechanisms underlying the formation of species-specifc GSLs and their hydrolysed products in Raphanus sativus L., we performed a comparative genomics analysis between R. sativus and Arabidopsis thaliana. In total, 144 GSL metabolism genes were identifed, and most of these GSL genes have expanded through whole-genome and tandem duplication in R. sativus. Crucially, the diferential expression of FMOGS-OX2 in the root and silique correlates with the diferential distribution of major aliphatic GSL components in these organs. Moreover, MYB118 expression specifcally in the silique suggests that aliphatic GSL accumulation occurs predominantly in seeds. Furthermore, the absence of the expression of a putative non-functional epithiospecifer (ESP) gene in any tissue and the nitrile- specifer (NSP) gene in roots facilitates the accumulation of distinctive benefcial isothiocyanates in R. sativus. Elucidating the evolution of the GSL metabolic pathway in R. sativus is important for fully understanding GSL metabolic engineering and the precise genetic improvement of GSL components and their catabolites in R. sativus and other Brassicaceae crops. Glucosinolates (GSLs), a large class of sulfur-rich secondary metabolites whose hydrolysis products display diverse bioactivities, function both in defence and as an attractant in plants, play a role in cancer prevention in humans and act as favour compounds1–4. -
Smitha MS, Singh S, Singh R. Microbial Biotransformation: a Process for Chemical Alterations
Journal of Bacteriology & Mycology: Open Access Mini Review Open Access Microbial biotransformation: a process for chemical alterations Abstract Volume 4 Issue 2 - 2017 Biotransformation is a process by which organic compounds are transformed from one Smitha MS, Singh S, Singh R form to another to reduce the persistence and toxicity of the chemical compounds. This Amity University Uttar Pradesh, India process is aided by major range of microorganisms and their products such as bacteria, fungi and enzymes. Biotransformations can also be used to synthesize compounds Correspondence: Singh R, Additional Director, Amity Institute or materials, if synthetic approaches are challenging. Natural transformation process of Microbial Biotechnology, Amity University, Sector 125, Noida, is slow, nonspecific and less productive. Microbial biotransformations or microbial UP, India, Tel +911204392900, Email [email protected] biotechnology are gaining importance and extensively utilized to generate metabolites in bulk amounts with more specificity. This review was conceived to assess the Received: November 21, 2016 | Published: February 21, 2017 impact of microbial biotransformation of steroids, antibiotics, various pollutants and xenobiotic compounds. Keywords: microbial biotransformation; bioconversion; metabolism; steroid; bacteria, fungi Introduction the metabolism of compounds using animal models.9 The microbial biotransformation phenomenon is then commonly employed Biotransformations are structural modifications in a chemical in comparing metabolic -
Toxicological Review of Phenol
EPA/635/R-02/006 TOXICOLOGICAL REVIEW OF Phenol (CAS No. 108-95-2) In Support of Summary Information on the Integrated Risk Information System (IRIS) September 2002 U.S. Environmental Protection Agency Washington D.C. DISCLAIMER Mention of trade names or commercial products does not constitute endorsement or recommendation for use. Note: This document may undergo revisions in the future. The most up-to-date version will be made available electronically via the IRIS Home Page at http://www.epa.gov/iris. CONTENTS - TOXICOLOGICAL REVIEW FOR PHENOL (CAS No. 108-95-2) Foreword................................................................... vi Authors, Contributors and Reviewers.......................................... vii 1. INTRODUCTION ......................................................1 2. CHEMICAL AND PHYSICAL INFORMATION RELEVANT TO ASSESSMENTS........................................................2 3. TOXICOKINETICS RELEVANT TO ASSESSMENTS ......................5 3.1 Absorption ......................................................5 3.2 Distribution.....................................................10 3.3 Metabolism.....................................................12 3.4 Excretion .......................................................23 4. HAZARD IDENTIFICATION ...........................................24 4.1 Studies in Humans - Epidemiology, Case Reports, Clinical Controls .....25 4.1.1 Oral .....................................................25 4.1.2 Inhalation ................................................27 4.2