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Kim J, Kim NH, Youn I, Seo EK, Kim CY. Effects of Allium macrostemon Bunge Extract on Adipose Tissue Inflammation and Hepatic Endoplasmic Reticulum Stress in High-Fat Diet-Fed and Bisphenol A-Treated C57BL/6N Mice. Foods 2023; 12:3777. [PMID: 37893670 PMCID: PMC10606828 DOI: 10.3390/foods12203777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
The simultaneous exposure to a high-fat (HF) diet and to bisphenol A (BPA) from delivered foods and food-delivery containers is on the rise in humans, according to the increased frequency of food delivery during the COVID-19 pandemic. This co-exposure could cause harmful tissue toxicity in the human body. Here, the preventive effect of Allium macrostemon Bunge (AM) extract against dysfunction in adipose tissue and the liver under co-exposure to BPA and an HF diet was examined using mice. C57BL/6N mice were divided into four groups (n = 6 or 7/group) according to diet and treatment: control diet with vehicle (CON), HF diet with vehicle (HF), HF diet with an oral injection of BPA (HF + BP), and HF diet with an oral injection of BPA and AM extract (HF + BP + AM). HF feeding increased body weight gain compared to CON feeding, while BP + HF and BP + HF + AM feeding suppressed body weight gain compared with HF feeding. The BP + HF group had lower body weight than the HF group, but the two groups had similar epididymal fat mass. The HF + BP + AM group showed lower pro-inflammatory gene expression levels in adipose tissue and epididymal fat mass compared to the HF + BP group. Altered endoplasmic reticulum (ER) stress response in the liver was partly observed in the HF + BP group, as shown by increased total phosphorylated Jun N-terminal kinase protein levels compared to those in the HF group. In addition, ecdysterone 25-O-β-D-glucopyranoside and 6-gingerol were identified in AM extract by mass spectrometry and molecular networking analysis. In summary, the AM extract diminished adipose tissue inflammation and hepatic ER stress in an HF diet and BPA co-exposure condition. To utilize AM as a potential food component to alleviate the harmful effect of an HF diet and BPA exposure, further research investigating the specific impact of AM extract supplementation using additional experimental groups or various treatment doses is warranted.
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Affiliation(s)
- Juhae Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (J.K.); (N.-H.K.)
| | - Na-Hyung Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (J.K.); (N.-H.K.)
| | - Isoo Youn
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea; (I.Y.); (E.K.S.)
| | - Eun Kyoung Seo
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Republic of Korea; (I.Y.); (E.K.S.)
| | - Choon Young Kim
- Research Institute of Human Ecology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (J.K.); (N.-H.K.)
- Department of Food and Nutrition, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Kaźmierczak A, Kornaś A, Mościpan M, Łęcka J. Influence of bisphenol A on growth and metabolism of Vicia faba ssp. minor seedlings depending on lighting conditions. Sci Rep 2022; 12:20259. [PMID: 36424469 PMCID: PMC9691730 DOI: 10.1038/s41598-022-24219-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 11/11/2022] [Indexed: 11/27/2022] Open
Abstract
The effect of one of anthropogenic pollutants, i.e., 4,4'-isopropylidenediphenol, called 2,2-bis (4-hydroxyphenyl) propane (BPA), at 30 and 120 mg L-1 concentrations in the darkness (DK) or dark/light (DK/LT) on growth and selected elements of metabolism of seedlings and leaf discs of Vicia faba ssp. minor was studied. Treatment with 120 mg L-1 BPA had greater effects which were reflected by increase in the number of necrotic changes in roots and stems as well as in leaf discs and reduction of the length of roots DK and DK/LT, and volume of roots in the DK group. However, minimal and no influence on the fresh and dry weight of roots and stems in plants growing under both types of lighting conditions were observed. In both DK and DK/LT groups these effects were correlated with reduced amounts of storage and cell wall-bound sugars as well as of proteins while in the DK/LT additionally with reduced soluble sugar levels in the roots and increased amounts of hydrogen peroxide and phenols in roots and stems as well as in treatment solutions, where these compounds were released. We suggest that endogenous phenols and BPA can be metabolised in roots and stems to quinones. It seems that TB-1,4-BQ, is the one of that of the five studied quinones. We expect that the results of this paper will help to answer the following question: does the phytomeliorative and phytosanitative V. faba ssp. minor plant is enough to be resistant on negative effects, and to be useful to reduce increasing amount of BPA in the environment?
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Affiliation(s)
- Andrzej Kaźmierczak
- grid.10789.370000 0000 9730 2769Department of Cytophysiology, Institute of Experimental Biology, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland
| | - Andrzej Kornaś
- grid.412464.10000 0001 2113 3716Institute of Biology, Pedagogical University of Krakow, Podchorążych 2, 30-084 Kraków, Poland
| | - Małgorzata Mościpan
- grid.460358.c0000 0001 1087 659XInstitute of Heavy Organic Synthesis “Blachownia”, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland
| | - Justyna Łęcka
- grid.10789.370000 0000 9730 2769Laboratory of Environmental Threats, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
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Zhao C, Zhang G, Jiang J. Enhanced Phytoremediation of Bisphenol A in Polluted Lake Water by Seedlings of Ceratophyllum demersum and Myriophyllum spicatum from In Vitro Culture. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020810. [PMID: 33477860 PMCID: PMC7832867 DOI: 10.3390/ijerph18020810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/07/2021] [Accepted: 01/15/2021] [Indexed: 11/20/2022]
Abstract
Bisphenol A (BPA) is a typical endocrine disruptor that causes problems in waters all around the world. In this study, the effects of submerged macrophytes (Ceratophyllum demersum and Myriophyllum spicatum) cultured in vitro on the removal of BPA at two initial concentrations (0.5 mg L−1 vs. 5.0 mg L−1) from Donghu lake water were investigated, using different biomass densities (2 g L−1 vs. 10 g L−1) under different nutrient conditions (1.85 mg L−1 and 0.039 mg L−1 vs. 8.04 mg L−1 and 0.175 mg L−1 of the total nitrogen and phosphorus concentration, respectively), together with the effect of indigenous microorganisms in the water. The results showed that indigenous microorganisms had limited capacity for BPA removal, especially at higher BPA initial concentration when its removal rate amounted to about 12% in 12 days. Addition with plant seedlings (5 cm in length) greatly enhanced the BPA removal, which reached 100% and over 50% at low and high BPA initial concentration in 3 days, respectively. Higher biomass density greatly favored the process, resulting in 100% of BPA removal at high BPA initial concentration in 3 days. However, increases in nutrient availability had little effect on the BPA removal by plants. BPA at 10.0 mg L−1 significantly inhibited the growth of M. spicatum. Therefore, C. demersum may be a candidate for phytoremediation due to greater efficiency for BPA removal and tolerance to BPA pollution. Overall, seedlings of submerged macrophytes from in vitro culture showed great potential for use in phytoremediation of BPA in natural waters, especially C. demersum.
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Affiliation(s)
- Chong Zhao
- School of Life Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China; (C.Z.); (G.Z.)
- The College of Urban & Environmental Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China
| | - Guosen Zhang
- School of Life Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China; (C.Z.); (G.Z.)
| | - Jinhui Jiang
- School of Life Sciences, Central China Normal University, No. 152, Luoyu Avenue, HongShan District, Wuhan 430079, China; (C.Z.); (G.Z.)
- Correspondence: ; Tel./Fax: +86-27-67861233
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Kanwar MK, Xie D, Yang C, Ahammed GJ, Qi Z, Hasan MK, Reiter RJ, Yu JQ, Zhou J. Melatonin promotes metabolism of bisphenol A by enhancing glutathione-dependent detoxification in Solanum lycopersicum L. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:121727. [PMID: 31796366 DOI: 10.1016/j.jhazmat.2019.121727] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/03/2019] [Accepted: 11/19/2019] [Indexed: 05/17/2023]
Abstract
Bisphenol A (BPA), a widely distributed organic compound, is toxic to animals and plants. Here we show the mechanism of BPA detoxification by melatonin (MEL) in tomato, which is otherwise poorly understood in plants. BPA treatment decreased the quantum yield of photosystem II (Fv/Fm) and increased the membrane lipid peroxidation and reactive oxygen species (ROS) accumulation dose-dependently, whereas exogenous MEL alleviated the BPA effects on Fv/Fm, lipid peroxidation, ROS accumulation and BPA uptake. Furthermore, BPA elevated the glutathione (GSH) content, activities of glutathione S-transferase (GST), and glutathione reductase (GR), and the transcript levels of GSH1, GR1, GST1 and MEL biosynthesis genes (COMT, T5H, and SNAT), whereas BPA + MEL showed even a more profound induction. Silencing GSH1, GR1 and GST1 genes compromised the BPA detoxification potential of tomato plants as revealed by an increased level of ROS, lipid peroxidation and BPA uptake, and a decreased Fv/Fm and GST activity; these changes were alleviated by MEL application. Under in vitro conditions, BPA was glutathionylated by GSH, which was further catalyzed by GST to cysteine and N-acetylcysteine conjugates. These findings suggest a crucial role for MEL in BPA detoxification via GSH and GST, and can be useful to reduce BPA residue for food safety.
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Affiliation(s)
- Mukesh Kumar Kanwar
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Dongling Xie
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Chen Yang
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Golam Jalal Ahammed
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Zhenyu Qi
- Agricultural Experiment Station, Zhejiang University, Hangzhou, China
| | - Md Kamrul Hasan
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China; Department of Agricultural Chemistry, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, 78229, USA
| | - Jing-Quan Yu
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China; Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jie Zhou
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China.
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Ahammed GJ, Wang Y, Mao Q, Wu M, Yan Y, Ren J, Wang X, Liu A, Chen S. Dopamine alleviates bisphenol A-induced phytotoxicity by enhancing antioxidant and detoxification potential in cucumber. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113957. [PMID: 32023799 DOI: 10.1016/j.envpol.2020.113957] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/22/2019] [Accepted: 01/08/2020] [Indexed: 05/17/2023]
Abstract
Bisphenol A (BPA) is an emerging organic pollutant, widely distributed in environment. Plants can uptake and metabolize BPA, but BPA accumulation induces phytotoxicity. In this study, we administered dopamine, a kind of catecholamines with strong antioxidative potential, to unveil its role in cucumber tolerance to BPA stress. The results showed that exposure to BPA (20 mg L-1) for 21 days significantly reduced growth and biomass accumulation in cucumber seedlings as revealed by decreased lengths and dry weights of shoots and roots. While BPA exposure decreased the chlorophyll content, cell viability and root activity, it remarkably increased reactive oxygen species (ROS) accumulation, electrolyte leakage and malondialdehyde (MDA) content, suggesting that BPA induced oxidative stress in cucumber. However, exogenous dopamine application significantly improved the photosynthetic pigment content, root cell viability, growth and biomass accumulation, and decreased the ROS and MDA levels by increasing the activity of antioxidant enzymes under BPA stress. Further analysis revealed that dopamine application significantly increased the glutathione content and the transcripts and activity of glutathione S-transferase under co-administration of dopamine and BPA compared with only BPA treatment. Moreover, dopamine decreased the BPA content in both leaves and roots, suggesting that dopamine promoted BPA metabolism by enhancing the glutathione-dependent detoxification. Our results show that dopamine has a positive role against BPA phytotoxicity and it may reduce the risks-associated with the dietary intake of BPA through consumption of vegetables.
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Affiliation(s)
- Golam Jalal Ahammed
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Yaqi Wang
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Qi Mao
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Meijuan Wu
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Yaru Yan
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Jingjing Ren
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Xiaojuan Wang
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Airong Liu
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China
| | - Shuangchen Chen
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, PR China.
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Xiao C, Wang L, Zhou Q, Huang X. Hazards of bisphenol A (BPA) exposure: A systematic review of plant toxicology studies. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121488. [PMID: 31699483 DOI: 10.1016/j.jhazmat.2019.121488] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 05/12/2023]
Abstract
The widespread use of bisphenol A (BPA) has led to its ubiquity in the natural environment. Thus, BPA is considered as a contaminant of emerging concern. Due to its widespread use, BPA has been detected in a range of soils and surface waters. This is of concern because BPA has been shown to elicit slight to moderate toxicity to plants. Based on current research and our own work, this paper reviews the toxic effects of BPA on plant growth and development, including effects at the macroscopic (e.g. seed germination, root, stem, and leaf growth) and microscopic (photosynthesis, uptake of mineral nutrient, hormone secretion, antioxidant systems, and reproductive genetic behavior) levels. Furthermore, this paper will discuss effects of BPA exposure on metabolic reactions in exposed plant species, and explore the use of high-efficiency plants in BPA pollution control (e.g. phytoremediation). Finally, this paper proposes some ideas for the future of BPA phytotoxicity research.
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Affiliation(s)
- Changyun Xiao
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Qing Zhou
- State Key Laboratory of Food Science and Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Xiaohua Huang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.
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Klopčič I, Dolenc MS. Chemicals and Drugs Forming Reactive Quinone and Quinone Imine Metabolites. Chem Res Toxicol 2018; 32:1-34. [DOI: 10.1021/acs.chemrestox.8b00213] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ivana Klopčič
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, 1000 Ljubljana, Slovenia
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Evans LW, Ferguson BS. Food Bioactive HDAC Inhibitors in the Epigenetic Regulation of Heart Failure. Nutrients 2018; 10:E1120. [PMID: 30126190 PMCID: PMC6115944 DOI: 10.3390/nu10081120] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/15/2018] [Accepted: 08/15/2018] [Indexed: 12/21/2022] Open
Abstract
Approximately 5.7 million U.S. adults have been diagnosed with heart failure (HF). More concerning is that one in nine U.S. deaths included HF as a contributing cause. Current HF drugs (e.g., β-blockers, ACEi) target intracellular signaling cascades downstream of cell surface receptors to prevent cardiac pump dysfunction. However, these drugs fail to target other redundant intracellular signaling pathways and, therefore, limit drug efficacy. As such, it has been postulated that compounds designed to target shared downstream mediators of these signaling pathways would be more efficacious for the treatment of HF. Histone deacetylation has been linked as a key pathogenetic element for the development of HF. Lysine residues undergo diverse and reversible post-translational modifications that include acetylation and have historically been studied as epigenetic modifiers of histone tails within chromatin that provide an important mechanism for regulating gene expression. Of recent, bioactive compounds within our diet have been linked to the regulation of gene expression, in part, through regulation of the epi-genome. It has been reported that food bioactives regulate histone acetylation via direct regulation of writer (histone acetyl transferases, HATs) and eraser (histone deacetylases, HDACs) proteins. Therefore, bioactive food compounds offer unique therapeutic strategies as epigenetic modifiers of heart failure. This review will highlight food bio-actives as modifiers of histone deacetylase activity in the heart.
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Affiliation(s)
- Levi W Evans
- Department of Agriculture, Nutrition, & Veterinary Sciences, University of Nevada, Reno, NV 89557, USA.
- Center for Cardiovascular Research, University of Nevada, Reno, NV 89557, USA.
- Environmental Science & Health, University of Nevada, Reno, NV 89557, USA.
| | - Bradley S Ferguson
- Department of Agriculture, Nutrition, & Veterinary Sciences, University of Nevada, Reno, NV 89557, USA.
- Center for Cardiovascular Research, University of Nevada, Reno, NV 89557, USA.
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Manna B. Rational functionalization of reduced graphene oxide with an imidazole group for the electrochemical sensing of bisphenol A - an endocrine disruptor. Analyst 2018; 143:3451-3457. [PMID: 29922801 DOI: 10.1039/c8an00642c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reduced graphene oxide has been rationally functionalized with histamine for the highly sensitive and selective electrochemical determination of bisphenol A (BPA). Histamine is covalently attached to graphene oxide by amide coupling and the oxygen functionalities of graphene oxide are partially reduced electrochemically. The facilitated electrochemical oxidation of BPA was achieved in neutral pH with functionalized reduced graphene oxide. The pH of the reaction controls the oxidation of BPA. Electrochemical oxidation is not favourable at pH less than the pKa of histamine due to the protonation of the imidazole nitrogen. The electrode is highly sensitive (1727.29 ± 12.48 nA μM-1 cm-2) towards BPA and shows a linear response up to 30 μM of BPA. It could detect as low as 0.03 nM of BPA (S/N = 5). The other coexisting analytes do not interfere with the voltammetric measurement of BPA.
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Affiliation(s)
- Bhaskar Manna
- Functional Materials and Electrochemistry Laboratory, Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
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Stack DE, Mahmud B. Efficient access to bisphenol A metabolites: Synthesis of monocatechol, mono-o-quinone, dicatechol, and di-o-quinone of bisphenol A. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1390586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Douglas E. Stack
- Department of Chemistry, University of Nebraska at Omaha, Omaha, Nebraska, USA
| | - Bejan Mahmud
- Department of Chemistry, University of Nebraska at Omaha, Omaha, Nebraska, USA
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Jiao L, Ding H, Wang L, Zhou Q, Huang X. Bisphenol A effects on the chlorophyll contents in soybean at different growth stages. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 223:426-434. [PMID: 28139326 DOI: 10.1016/j.envpol.2017.01.042] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/15/2017] [Accepted: 01/16/2017] [Indexed: 05/12/2023]
Abstract
Bisphenol A (BPA), a suspected endocrine disruptor, can modify normal plant growth and development. Photosynthesis provides material and energy for the growth and development of plants, in which chlorophyll (Chl) plays a significant role. Many studies have shown that the growth and metabolism of plants vary at different growth stages. Thus the sensitivity of plant's responses to environmental pollution is correspondingly different. We studied the effects of BPA on the Chl contents of soybean (Glycine Max L.) at different growth stages (seedling, flowering and podding, seed-filling and maturation) by measuring the contents of essential intermediates (5-aminolevulinic acid, porphobilinogen, protoporphyrin IX, magnesium protoporphyrin and protochlorophyll) and the activities of key enzymes (5-aminolaevulinic acid dehydratase, porphobilinogen deaminase, uroporphyrinogen III synthase, magnesium chelatase) in chlorophyll synthesis. Low-dose (1.5 mg/L) BPA exposure increased the activities of key enzymes in addition to the contents of intermediates in Chl synthesis at different growth stages, resulting in increases in Chl contents and net photosynthetic rate. In contrast, medium and high-dose (17.2, 50.0 mg/L) BPA exposure produced inhibitory effects on the indices. Following the withdrawal of BPA exposure, the indices recovered to a degree that was related to the plant growth stage. The effect level (high to low) of BPA on these indices at different growth stages was: seedling stage > maturation stage > flowering and podding stage > seed-filling stage. The reverse effect was observed following the withdrawal of BPA exposure. The responses of key enzymes in plant Chl synthesis to BPA illustrate how BPA affects Chl contents. The effects of BPA show clear differences at different plant growth stages.
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Affiliation(s)
- Liya Jiao
- State Key Laboratory of Food Science and Technology, College of Environment and Civil Engineering, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 212003, China
| | - Hezhou Ding
- State Key Laboratory of Food Science and Technology, College of Environment and Civil Engineering, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 212003, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, College of Environment and Civil Engineering, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 212003, China
| | - Qing Zhou
- State Key Laboratory of Food Science and Technology, College of Environment and Civil Engineering, Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122, China; Jiangsu Cooperative Innovation Center of Water Treatment Technology and Materials, Suzhou University of Science and Technology, Suzhou 212003, China.
| | - Xiaohua Huang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.
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Im J, Löffler FE. Fate of Bisphenol A in Terrestrial and Aquatic Environments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:8403-16. [PMID: 27401879 DOI: 10.1021/acs.est.6b00877] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Bisphenol A (2,2-bis[4-hydroxyphenyl]propane, BPA), the monomer used to produce polycarbonate plastic and epoxy resins, is weakly estrogenic and therefore of environmental and human health interest. Due to the high production volumes and disposal of products made from BPA, polycarbonate plastic and epoxy resins, BPA has entered terrestrial and aquatic environments. In the presence of oxygen, diverse taxa of bacteria, fungi, algae and even higher plants metabolize BPA, but anaerobic microbial degradation has not been documented. Recent reports demonstrated that abiotic processes mediate BPA transformation and mineralization in the absence of oxygen, indicating that BPA is susceptible to degradation under anoxic conditions. This review summarizes biological and nonbiological processes that lead to BPA transformation and degradation, and identifies research needs to advance predictive understanding of the longevity of BPA and its transformation products in environmental systems.
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Affiliation(s)
- Jeongdae Im
- Department of Microbiology, University of Massachusetts , Amherst, Massachusetts 01002, United States
| | - Frank E Löffler
- Center for Environmental Biotechnology, University of Tennessee , Knoxville, Tennessee 37996, United States
- Department of Microbiology, University of Tennessee , Knoxville, Tennessee 37996, United States
- Department of Civil and Environmental Engineering, University of Tennessee , Knoxville, Tennessee 37996, United States
- University of Tennessee and Oak Ridge National Laboratory (UT-ORNL) Joint Institute for Biological Sciences (JIBS) and Biosciences Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
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14
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Kinetic characterization of tyrosinase containing mushroom (Agaricus bisporus) cells immobilized in silica alginate. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.03.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Characterization of Bisphenol A Metabolites Produced byPortulaca oleraceacv. by Liquid Chromatography Coupled with Tandem Mass Spectrometry. Biosci Biotechnol Biochem 2014; 76:1015-7. [DOI: 10.1271/bbb.110967] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Reis AR, Tabei K, Sakakibara Y. Oxidation mechanism and overall removal rates of endocrine disrupting chemicals by aquatic plants. JOURNAL OF HAZARDOUS MATERIALS 2014; 265:79-88. [PMID: 24333944 DOI: 10.1016/j.jhazmat.2013.11.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 11/16/2013] [Accepted: 11/18/2013] [Indexed: 05/12/2023]
Abstract
The purpose of this study was to evaluate experimentally and theoretically the oxidation mechanisms and overall removal rates of phenolic endocrine disrupting chemicals (EDCs) by aquatic plants. EDCs used in this study were bisphenol-A (BPA), 2,4-dichlorophenol (2,4-DCP), 4-tert-octylphenol (4-t-OP), and pentachlorophenol (PCP). Referring to reported detection levels in aquatic environments and contaminated sites, the feed concentration of each EDC was set from 1 to 100μg/L. Experimental results showed that, except for PCP, phenolic EDCs were stably and concurrently removed by different types of aquatic plants over 70 days in long-term continuous treatments. Primal enzymes responsible for oxidation of BPA, 2,4-DCP, and 4-t-OP were peroxidases (POs). Moreover, enzymatic removal rates of BPA, 2,4-DCP, and 4-t-OP by POs were more than 2 orders of magnitude larger than those by aquatic plants. Assuming that overall removal rates of EDCs are controlled by mass transfer rates onto liquid films on the surface of aquatic plants, an electrochemical method based on the limiting current theory was developed to measure the mass transfer rates of EDCs. Because of extremely large removal rates of EDCs by POs, observed removal rates by aquatic plants were in reasonably good agreement with calculated results by a mathematical model developed based on an assumption that mass transfer limitation is a rate-limiting step.
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Affiliation(s)
- A R Reis
- Department of Soil Science, Federal University of Lavras, Lavras, MG 37200-000, Brazil.
| | - K Tabei
- Department of Civil and Environmental Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 Japan
| | - Y Sakakibara
- Department of Civil and Environmental Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 Japan.
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Lu J, Wu J, Stoffella PJ, Chris Wilson P. Isotope dilution-gas chromatography/mass spectrometry method for the analysis of alkylphenols, bisphenol A, and estrogens in food crops. J Chromatogr A 2012; 1258:128-35. [DOI: 10.1016/j.chroma.2012.08.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 08/07/2012] [Accepted: 08/09/2012] [Indexed: 11/17/2022]
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18
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Husain Q, Qayyum S. Biological and enzymatic treatment of bisphenol A and other endocrine disrupting compounds: a review. Crit Rev Biotechnol 2012; 33:260-92. [DOI: 10.3109/07388551.2012.694409] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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19
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Castro A, Caballero M, Herbas A, Carballo S. Antioxidants in yacon products and effect of long term storage. FOOD SCIENCE AND TECHNOLOGY 2012. [DOI: 10.1590/s0101-20612012005000064] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Yacon (Smallanthus sonchifolius (Poepp. and Endl.) H. Robinson) is a storage root originally grown in the Andean highlands. The fresh roots are perishable and quickly turn brown during handling and processing. Aiming to prolong shelf-life and to preserve the antioxidant compounds in yacon roots, 3 mm thick yacon slices were dried in a drying cabinet at 40, 50, and 60 ºC to a moisture content of 10-14%, and yacon strips were sun dried to a moisture content of 15-20%. The total phenolic content was measured by the Folin-Ciocalteu method, and the quenching capacity was evaluated by measuring the amount of DPPH (1,1-diphenyl-2-pidrylhydrazyl) inhibited in samples after drying and after 7 months of storage. The results showed that it is possible to preserve the antioxidant capacity in yacon after cabinet or sun drying. Both yacon chips and strips presented total phenolic content values similar to those of fresh yacon roots. Both products also showed a high inhibition capacity of DPPH (1,1-diphenyl-2-pidrylhydrazyl). A significant decrease in the phenolic content was observed in the yacon chips after storage, which indicates that the sun dried strips are more suitable for storage.
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Kovacic P. How safe is bisphenol A? Fundamentals of toxicity: metabolism, electron transfer and oxidative stress. Med Hypotheses 2010; 75:1-4. [PMID: 20371154 DOI: 10.1016/j.mehy.2010.03.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Accepted: 03/04/2010] [Indexed: 11/18/2022]
Abstract
The FDA recently announced concern about the safety of bisphenol A (BPA) and the need for more research. In the current controversy, scant attention is being paid to toxicity at the fundamental, molecular level, which is the topic of this report. Important information is provided by extensive studies on metabolism. The principal pathway is detoxification, mainly by conjugation leading to a glucuronide. A minor route entails oxidation by hydroxylation to a catechol followed by further transformation to an o-quinone. The catechol-o-quinone couple is capable of redox cycling with generation of reactive oxygen species (ROS) and oxidative stress (OS). o-Quinones are highly electron affinic with very favorable reduction potentials that permit electron transfer (ET) under physiological conditions. Only small amounts are sufficient to generate large quantities of ROS catalytically. There is extensive evidence for production of ROS, which buttresses ET by o-quinone as a plausible source. In addition, there are numerous reports on toxicity to body constituents by BPA. Those adversely affected include the liver, DNA, genes, CNS, reproductive system and kidney. Since a plethora of prior studies links ROS-OS with toxicity, it is reasonable to propose a similar connection for BPA. Cell signaling also plays a role. There are various other factors involved with toxic responses, including age, with the fetus and infants being the most vulnerable. A report concludes that human exposure to BPA is not negligible. The present overview represents a novel, integrated approach to BPA toxicity. A similar article was recently published in this journal which deals with toxicity of prevalent phthalate plasticizers.
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21
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Imai S, Shiraishi A, Gamo K, Watanabe I, Okuhata H, Miyasaka H, Ikeda K, Bamba T, Hirata K. Removal of phenolic endocrine disruptors by Portulaca oleracea. J Biosci Bioeng 2007; 103:420-6. [PMID: 17609156 DOI: 10.1263/jbb.103.420] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2006] [Accepted: 02/07/2007] [Indexed: 11/17/2022]
Abstract
Portulaca oleracea, a garden plant prevalent from spring to autumn in Japan, showed the ability to efficiently remove from water bisphenol A (BPA), which is well known as an endocrine disrupting compound (EDC) having estrogenic properties. In water culture, 50 muM BPA was almost completely removed within 24 h when the ratio of whole plant weight to the water volume was set up at 1 g to 25 ml. The estrogenic activity of the water decreased in parallel with the elimination of BPA. This plant also rapidly removed other EDCs having a phenol group including octylphenol (OP), nonylphenol (NP), 2,4-dichlorophenol (2,4-DCP) and 17beta-estradiol and, thereby, removed the endocrine disrupting activities. In addition, the ability of P. oleracea to remove BPA was not affected by BPA concentration (up to 250 microM), by cultivation in the dark, by temperatures ranging from 15 degrees C to 30 degrees C, or by pH ranging from 4 to 7. Moreover, the ability of P. oleracea to individually remove BPA, NP, and OP was the same as when they were all present. These results suggest that P. oleracea is a promising material for practical phytoremediation of landfill leachates and industrial wastewater contaminated with the tested EDCs.
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Affiliation(s)
- Sofue Imai
- Department of Applied Environmental Biology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, Japan
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22
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Neves VA, da Silva MA. Polyphenol oxidase from yacon roots (Smallanthus sonchifolius). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:2424-30. [PMID: 17316020 DOI: 10.1021/jf063148w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Polyphenol oxidase (E.C. 1.14.18.1) (PPO) extracted from yacon roots (Smallanthus sonchifolius) was partially purified by ammonium sulfate fractionation and separation on Sephadex G-100. The enzyme had a molecular weight of 45 490+/-3500 Da and Km values of 0.23, 1.14, 1.34, and 5.0 mM for the substrates caffeic acid, chlorogenic acid, 4-methylcatechol, and catechol, respectively. When assayed with resorcinol, DL-DOPA, pyrogallol, protocatechuic, p-coumaric, ferulic, and cinnamic acids, catechin, and quercetin, the PPO showed no activity. The optimum pH varied from 5.0 to 6.6, depending on substrate. PPO activity was inhibited by various phenolic and nonphenolic compounds. p-Coumaric and cinnamic acids showed competitive inhibition, with Ki values of 0.017 and 0.011 mM, respectively, using chlorogenic acid as substrate. Heat inactivation from 60 to 90 degrees C showed the enzyme to be relatively stable at 60-70 degrees C, with progressive inactivation when incubated at 80 and 90 degrees C. The Ea (apparent activation energy) for inactivation was 93.69 kJ mol-1. Sucrose, maltose, glucose, fructose, and trehalose at high concentrations appeared to protect yacon PPO against thermal inactivation at 75 and 80 degrees C.
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Affiliation(s)
- Valdir Augusto Neves
- Laboratório de Bioquímica de Alimentos, Departamento de Alimentos e Nutrição, FCF-Ar, UNESP-Universidade Estadual Paulista, Rodovia Araraquara-Jaú, km 01, CEP 14801-902, Araraquara, São Paulo, Brazil.
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Endo Y, Kimura N, Ikeda I, Fujimoto K, Kimoto H. Adsorption of bisphenol A by lactic acid bacteria, Lactococcus, strains. Appl Microbiol Biotechnol 2007; 74:202-7. [PMID: 17021871 DOI: 10.1007/s00253-006-0632-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2006] [Revised: 08/10/2006] [Accepted: 08/11/2006] [Indexed: 11/26/2022]
Abstract
Ten strains of the genus Lactococcus were examined for their ability to remove bisphenol A [2, 2-bis(4-hydroxyphenyl)propane; BPA], which is known as an endocrine disrupter. Nine strains of the lactococci tested could remove BPA from media during growth, although the removal ratio was below 9%. When BPA was incubated with lyophilized cells of lactococci for 1 h, the concentration of BPA in the media was decreased by 9-62%. Especially, the highest removal ratio of BPA was observed for Lactococcus lactis subsp. lactis 712. The lactococci could adsorb BPA but not degrade it, because the lactococci maintained the ability to remove BPA from the medium after autoclaving. When the lyophilized cells of L. lactis subsp. lactis 712 were also incubated with six analogues of BPA, they effectively adsorbed hydrophobic compounds such as 2, 2'-diphenylpropane and bisphenol A dimethylether. The BPA-adsorbing ability of lactococci could be due to the hydrophobic binding effect. The removal ratio of BPA by L. lactis subsp. lactis 712 was increased after treatment with sodium dodecyl sulfate and decreased after digestion with trypsin. These results suggest that the hydrophobic proteins on cell surface may be involved in the BPA-adsorbing ability of lactococci.
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Affiliation(s)
- Yasushi Endo
- Graduate School of Agricultural Science, Tohoku University, Tsutsumidori-Amamiyamachi, Aoba, Sendai 981-8555, Japan.
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24
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Utsukihara T, Watanabe S, Tomiyama A, Chai W, Horiuchi CA. Stereoselective reduction of ketones by various vegetables. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcatb.2006.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Imanaka M, Yamabe SI, Yamamoto J, Koezuka K, Take S, Sato A, Sasaki K. Oxidative Degradation of Bisphenol A by Fruit Homogenates. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.2005.tb08300.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Importance of control of enzymatic degradation for determination of bisphenol A from fruits and vegetables. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.08.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yamada K, Akiba Y, Shibuya T, Kashiwada A, Matsuda K, Hirata M. Water purification through bioconversion of phenol compounds by tyrosinase and chemical adsorption by chitosan beads. Biotechnol Prog 2005; 21:823-9. [PMID: 15932262 DOI: 10.1021/bp0495668] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enzymatic removal of various phenol compounds from artificial wastewater was undertaken by the combined use of mushroom tyrosinase (EC 1.14.18.1) and chitosan beads as function of pH value, temperature, tyrosinase dose, and hydrogen peroxide-to-substrate ratio. Chitosan film incubated in a p-crersol+tyrosinase mixture had the main peaks at 400-470 nm assigned to chemically adsorbed quinone derivatives, which increased over the immersion time. These results indicate that removal of phenol compounds is caused by their tyrosinase-catalyzed oxidation to the corresponding quinone derivatives and the subsequent chemical adsorption on the chitosan film. The optimum conditions for quinone adsorption were determined to be pH 7 and 45 degrees C for p-cresol. Some alkyl-substituted phenol compounds were removed by adsorption of quinone derivatives enzymatically generated on the chitosan beads, and the % removal for p-cresol, 4-ethylphenol, 4-n-propylphenol, 4-n-butylphenol, and p-chlorophenol went up to 93%. In addition, 4-tert-butylphenol underwent tyrosinase-catalyzed oxidation in the presence of hydrogen peroxide. This procedure was applicable to removal of chlorophenols and alkyl-substituted phenols.
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Affiliation(s)
- Kazunori Yamada
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba 275-8575, Japan
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28
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Qiu SX, Yang RZ, Gross ML. Synthesis and liquid chromatography/tandem mass spectrometric characterization of the adducts of bisphenol A o-quinone with glutathione and nucleotide monophosphates. Chem Res Toxicol 2005; 17:1038-46. [PMID: 15310235 DOI: 10.1021/tx049953r] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An environmental, estrogen-like substance, bisphenol A (BPA), is the monomer for the production of polycarbonate plastics used in baby bottles, dental sealants, and as a major component of epoxy resin for the lining of food cans. The oxidation of BPA leads to the reactive electrophilic BPA-o-3,4-quinone (BPA-Q), which can damage DNA and may be implicated in cancer initiation. BPA-Q reacts in vitro with 2'-deoxyguanosine 5'-phosphate (dGMP) and 2'-deoxyadenosine 5'-phosphate (dAMP) but not with 2'-deoxycytidine-5'-phosphate and 2'-deoxythymidine 5'-phosphate. In aqueous acetic acid, BPA-Q also reacts with 2'-deoxyguanosine (dG) and 2'-deoxyadenosine (dA) but not with 2'-deoxycytidine and 2'-deoxythymidine. The reactions are accompanied by loss of the modified base (depurination). We determined the structures of the modified bases by primarily tandem mass spectrometry. In mixtures of deoxynuclesides and deoxynucletides treated with BPA-Q, reactions occur more readily with dGMP/dG followed by dAMP/dA. With calf thymus DNA, significant apurinic sites must be produced because we detected the BPA-Q-guanosine adduct in the incubation mixture. We also found that BPA-Q reacts readily with glutathione (GSH) under acidic or neutral conditions, and we characterized the BPA-Q-GSH conjugate with tandem mass spectrometry (MS/MS). The results are consistent with a mechanism of carcinogenesis whereby BPA-Q, formed in vivo and not adequately detoxified by reactions with GSH, reacts with DNA, causing depurination. The adducts reported will also be appropriate references for identification of BPA-Q adducts in environmental and biological systems.
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Affiliation(s)
- Sheng-Xiang Qiu
- Department of Chemistry, Box 1134, Washington University, One Brookings Drive, St. Louis, Missouri 63130, USA
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Edmonds JS, Nomachi M, Terasaki M, Morita M, Skelton BW, White AH. The reaction of bisphenol A 3,4-quinone with DNA. Biochem Biophys Res Commun 2004; 319:556-61. [PMID: 15178442 DOI: 10.1016/j.bbrc.2004.05.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2004] [Indexed: 11/25/2022]
Abstract
The 3,4-quinone of the estrogen-active compound bisphenol A (BPA), characterized by a single crystal X-ray structure determination, has been shown by (1)H NMR spectroscopy to react with herring testes DNA, and with deoxyguanosine (dG), in aqueous buffer at pH 7, to form a BPA 3,4-quinone-guanine-N7 adduct (BPAQ-N7-Gua). Presumably this adduct resulted from decomposition (by loss of deoxyribose) of an initially formed, but unstable, BPAQ-N7-dG adduct. Chemical synthesis if BPAQ-N7-Gua, in up to 60% yield, was achieved by the reaction of BPAQ and dG in aqueous acetic acid. Characterization of this product, by NMR spectroscopy and high resolution mass spectrometry, allowed the monitoring (by (1)H NMR spectroscopy) of the reaction of BPAQ with DNA and with dG. The relevance of this adduct formation to the potential mutagenicity and carcinogenicity of BPA will depend upon confirmation of the necessary metabolic oxidative transformation of BPA in vivo.
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Affiliation(s)
- John S Edmonds
- Endocrine Disrupter Research Laboratory, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
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Komori K, Yatagai K, Tatsuma T. Activity regulation of tyrosinase by using photoisomerizable inhibitors. J Biotechnol 2004; 108:11-6. [PMID: 14741765 DOI: 10.1016/j.jbiotec.2003.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Enzymatic activity of tyrosinase was controlled on the basis of cis-trans photoisomerization of inhibitors, 4-azobenzene carboxylic acid (ACA) and 4,4'-azobenzene dicarboxylic acid (ADCA). In the case of ACA, the cis form inhibited tyrosinase-catalyzed oxidation of L-tyrosine more strongly than the trans form. On the contrary, in the case of ADCA, the cis form was less inhibitory. The oxidation rate was controlled reversibly by light irradiation in the course of the reaction. In the presence of ACA, UV light irradiation, which isomerized trans to cis form, decelerated the tyrosine oxidation, while visible light irradiation, which isomerized backward, accelerated the reaction. In contrast, in the presence of ADCA, UV light accelerated and visible light decelerated the reaction.
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Affiliation(s)
- Kikuo Komori
- Institute of Industrial Science, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8505, Japan
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31
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Valentová K, Ulrichová J. Smallanthus sonchifolius and Lepidium meyenii - prospective Andean crops for the prevention of chronic diseases. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2003. [DOI: 10.5507/bp.2003.017] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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