51
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Ng J, Lui LMW, Rosenblat JD, Teopiz KM, Lipsitz O, Cha DS, Xiong J, Nasri F, Lee Y, Kratiuk K, Rodrigues NB, Gill H, Subramaniapillai M, Mansur RB, Ho R, Cao B, McIntyre RS. Ketamine-induced urological toxicity: potential mechanisms and translation for adults with mood disorders receiving ketamine treatment. Psychopharmacology (Berl) 2021; 238:917-926. [PMID: 33484298 DOI: 10.1007/s00213-021-05767-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
Intravenous (IV) ketamine has been shown to have rapid and robust antidepressant effects in adults with treatment-resistant depression (TRD). Urological toxicity has been observed in chronic ketamine abusers as evidenced by dysuria, urgency, and hematuria. The foregoing observation provides the basis for evaluating whether ketamine-induced urological toxicity (KIUT) is associated with sub-anesthetic doses of ketamine (0.5-1.0 mg/kg) in adults with mood disorders. The overarching objective of this article is to identify potential mechanisms of KIUT which appears to be dose and frequency dependent. Available research indicates that high-frequency ketamine is associated with disruption of the urothelial barrier as well as direct ketamine toxicity (i.e., decreased expression of junction proteins) in KIUT of the bladder. Chronic and high-frequency ketamine use is also associated with bladder inflammation mediated via neurogenic and IgE inflammation. Other non-mutually exclusive causes are nerve hyperplasia, hypersensitivity, cell apoptosis, microvascular damage, and overexpression of carcinogenic genes. Notwithstanding the evidence of KIUT in ketamine abusers, there is no evidence that ketamine and/or esketamine treatment in adults with mood disorders is associated with KIUT. However, all patients receiving ketamine/esketamine for mood disorder treatment should be queried about genitourinary symptoms during acute and, where applicable, maintenance dosing.
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Affiliation(s)
- Jason Ng
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Leanna M W Lui
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Joshua D Rosenblat
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Kayla M Teopiz
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Orly Lipsitz
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Danielle S Cha
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada.,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada.,School of Medicine, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Jiaqi Xiong
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Flora Nasri
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Yena Lee
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Kevin Kratiuk
- Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada
| | - Nelson B Rodrigues
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Hartej Gill
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Mehala Subramaniapillai
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Rodrigo B Mansur
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada
| | - Roger Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore, Singapore
| | - Bing Cao
- School of Psychology and Key Laboratory of Cognition and Personality (Ministry of Education), Southwest University, Chongqing, 400715, China.,National Demonstration Center for Experimental Psychology Education, Southwest University, Chongqing, 400715, China
| | - Roger S McIntyre
- Mood Disorder Psychopharmacology Unit, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, ON, M5T 2S8, Canada. .,Canadian Rapid Treatment Center of Excellence, Mississauga, ON, Canada. .,Brain and Cognition Discovery Foundation, Toronto, Canada.
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52
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Surma R, Wojcieszyńska D, Karcz J, Guzik U. Effect of Pseudomonas moorei KB4 Cells' Immobilisation on Their Degradation Potential and Tolerance towards Paracetamol. Molecules 2021; 26:820. [PMID: 33557429 PMCID: PMC7915102 DOI: 10.3390/molecules26040820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/26/2021] [Accepted: 02/02/2021] [Indexed: 11/17/2022] Open
Abstract
Pseudomonas moorei KB4 is capable of degrading paracetamol, but high concentrations of this drug may cause an accumulation of toxic metabolites. It is known that immobilisation can have a protective effect on bacterial cells; therefore, the toxicity and degradation rate of paracetamol by the immobilised strain KB4 were assessed. Strain KB4 was immobilised on a plant sponge. A toxicity assessment was performed by measuring the concentration of ATP using the colony-forming unit (CFU) method. The kinetic parameters of paracetamol degradation were estimated using the Hill equation. Toxicity analysis showed a protective effect of the carrier at low concentrations of paracetamol. Moreover, a pronounced phenomenon of hormesis was observed in the immobilised systems. The obtained kinetic parameters and the course of the kinetic curves clearly indicate a decrease in the degradation activity of cells after their immobilisation. There was a delay in degradation in the systems with free cells without glucose and immobilised cells with glucose. However, it was demonstrated that the immobilised systems can degrade at least ten succeeding cycles of 20 mg/L paracetamol degradation. The obtained results indicate that the immobilised strain may become a useful tool in the process of paracetamol degradation.
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Affiliation(s)
| | | | | | - Urszula Guzik
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Science, University of Silesia in Katowice, Jagiellonska 28, 40-032 Katowice, Poland; (R.S.); (D.W.); (J.K.)
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53
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Liu B, Chen B, Zhang B, Song X, Zeng G, Lee K. Photocatalytic ozonation of offshore produced water by TiO 2 nanotube arrays coupled with UV-LED irradiation. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123456. [PMID: 32688191 DOI: 10.1016/j.jhazmat.2020.123456] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Offshore produced water (OPW) containing hazardous substances such as polycyclic aromatic hydrocarbons (PAHs) needs to be treated prior to discharge. This study integrated a photocatalytic ozonation system with TiO2 nanotube arrays (TNA) and UV-light-emitted diode (UV-LED) irradiation and applied to treat OPW. Experimental and modeling efforts were made to evaluate the degradation efficiencies of PAHs, examine the behaviors of the OPW composition (e.g., phenols, iodide, and bromide), and investigate the oxidation intermediates and the associated toxicity and biodegradability. The results indicated that ozone significantly enhanced the oxidation rates and removed the PAHs within 30 min, while the TNA showed strong photocatalytic capability. In the early stage, iodide was a strong ozone competitor, accelerating phenol degradation but inhibiting PAH oxidation, whereas UV-LED fortified the effect. The degradation of aromatics was altered by iodide and bromide at different stages. The contributions of four toxicants to the acute toxicity of OPW were quantified and ranked (PAHs > bromoform > phenols > dibromopentane). The EC50 value increased from 3 % to 57 %, and the biodegradability was doubled with less footprint in 28-day biodegradation tests. Overall, it is recommended to sequentially oxidize the matrix of OPW by ozonation and PAHs by the UV-LED/TNA/ozone system.
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Affiliation(s)
- Bo Liu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada.
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Xing Song
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Ganning Zeng
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada; College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Kenneth Lee
- Ecosystem Science, Fisheries and Oceans Canada, Ottawa, ON, K1A 0E6, Canada
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Yang P, Shao Z, Besley NA, Neal SE, Buehne KL, Park J, Karageozian H, Karageozian V, Ryde IT, Meyer JN, Jaffe GJ. Risuteganib Protects against Hydroquinone-induced Injury in Human RPE Cells. Invest Ophthalmol Vis Sci 2021; 61:35. [PMID: 32818234 PMCID: PMC7443126 DOI: 10.1167/iovs.61.10.35] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Purpose Cigarette smoking has been implicated in the pathogenesis of AMD. Integrin dysfunctions have been associated with AMD. Herein, we investigate the effect of risuteganib (RSG), an integrin regulator, on RPE cell injury induced by hydroquinone (HQ), an important oxidant in cigarette smoke. Methods Cultured human RPE cells were treated with HQ in the presence or absence of RSG. Cell death, mitochondrial respiration, reactive oxygen species production, and mitochondrial membrane potential were measured by flow cytometry, XFe24 analyzer, and fluorescence plate reader, respectively. Whole transcriptome analysis and gene expression were analyzed by Illumina RNA sequencing and quantitative PCR, respectively. F-actin aggregation was visualized with phalloidin. Levels of heme oxygenase-1, P38, and heat shock protein 27 proteins were measured by Western blot. Results HQ induced necrosis and apoptosis, decreased mitochondrial bioenergetics, increased reactive oxygen species levels, decreased mitochondrial membrane potential, increased F-actin aggregates, and induced phosphorylation of P38 and heat shock protein 27. HQ, but not RSG alone, induced substantial transcriptome changes that were regulated by RSG cotreatment. RSG cotreatment significantly protected against HQ-induced necrosis and apoptosis, prevented HQ-reduced mitochondrial bioenergetics, decreased HQ-induced reactive oxygen species production, improved HQ-disrupted mitochondrial membrane potential, reduced F-actin aggregates, decreased phosphorylation of P38 and heat shock protein 27, and further upregulated HQ-induced heme oxygenase-1 protein levels. Conclusions RSG has no detectable adverse effects on healthy RPE cells, whereas RSG cotreatment protects against HQ-induced injury, mitochondrial dysfunction, and actin reorganization, suggesting a potential role for RSG therapy to treat retinal diseases such as AMD.
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Affiliation(s)
- Ping Yang
- Department of Ophthalmology, Duke University Eye Center, Durham, North Carolina, United States
| | - Zixuan Shao
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, United States
| | - Nicholas A Besley
- Department of Ophthalmology, Duke University Eye Center, Durham, North Carolina, United States
| | - Samantha E Neal
- Department of Ophthalmology, Duke University Eye Center, Durham, North Carolina, United States
| | - Kristen L Buehne
- Department of Ophthalmology, Duke University Eye Center, Durham, North Carolina, United States
| | - John Park
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, United States
| | - Hampar Karageozian
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, United States
| | - Vicken Karageozian
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, United States
| | - Ian T Ryde
- Nicholas School of the Environment, Duke University, Durham, North Carolina, United States
| | - Joel N Meyer
- Nicholas School of the Environment, Duke University, Durham, North Carolina, United States
| | - Glenn J Jaffe
- Department of Ophthalmology, Duke University Eye Center, Durham, North Carolina, United States
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55
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Wang W, Li L, Wang X, Qiu T, Yang J, Ye C. Reaction kinetic studies on the immobilized-lipase catalyzed enzymatic resolution of 1-phenylethanol transesterification with ethyl butyrate. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1855150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Weican Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
| | - Ling Li
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
| | - Xiaoda Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
| | - Ting Qiu
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
| | - Jianhao Yang
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
| | - Changshen Ye
- College of Chemical Engineering, Fuzhou University, Fuzhou, China
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56
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Park S, Oh S. Detoxification and bioaugmentation potential for acetaminophen and its derivatives using Ensifer sp. isolated from activated sludge. CHEMOSPHERE 2020; 260:127532. [PMID: 32683017 DOI: 10.1016/j.chemosphere.2020.127532] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/20/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
Acetaminophen (APAP), a widely used analgesic-antipyretic drug, is frequently detected in the environment and may pose ecological risks to aquatic communities. In this work, an APAP-degrading organism, designated as Ensifer sp. POKHU, was isolated from activated sludge (AS) enriched with APAP. POKHU degraded up to 630 mg/L of APAP without substrate inhibition. The bacterium metabolized APAP to hydroquinone (HQ) via 4-aminophenol (4-AP). APAP derivatives, 4AP, HQ, and 1,4-benzoquinone (BQ), frequently detected in the environment, were found to inhibit nitrogen metabolism (ammonium oxidation) to a greater extent than APAP. POKHU had the ability to degrade varying levels (0.4-40 mg/L) of 4-AP, HQ, and BQ, which indicated a great potential for detoxification in environments contaminated with both APAP and its derivatives. The addition of POKHU to fresh AS samples taken from a wastewater treatment plant greatly increased the biotransformation rates of APAP from 5.6 d-1 (no POKHU augmentation) to >20.0 d-1 (5% POKHU). Bioaugmentation with POKHU reduced 400 μg/L of APAP to levels below its ecotoxicity threshold within 4 h, which is shorter than the typical hydraulic retention times for full-scale AS processing. Overall, this study identified a new auxiliary biological agent for APAP detoxification, which could degrade both APAP and its metabolic derivatives (those that can be more toxic than the parent contaminant, APAP). The results have practical implications for developing a biological means (detoxification and bioaugmentation) of treating high-strength pharmaceutical waste streams, such as wastewater from hospitals and drug manufactures, and of landfill leachates.
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Affiliation(s)
- Sangeun Park
- Department of Civil Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Seungdae Oh
- Department of Civil Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do, Republic of Korea.
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Wafi A, Szabó-Bárdos E, Horváth O, Pósfai M, Makó É, Juzsakova T, Fónagy O. The Photocatalytic and Antibacterial Performance of Nitrogen-Doped TiO 2: Surface-Structure Dependence and Silver-Deposition Effect. NANOMATERIALS 2020; 10:nano10112261. [PMID: 33203178 PMCID: PMC7697533 DOI: 10.3390/nano10112261] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/09/2020] [Accepted: 11/13/2020] [Indexed: 11/16/2022]
Abstract
Catalysts for visible-light-driven oxidative cleaning processes and antibacterial applications (also in the dark) were developed. In order to extend the photoactivity of titanium dioxide into the visible region, nitrogen-doped TiO2 catalysts with hollow and non-hollow structures were synthesized by co-precipitation (NT-A) and sol–gel (NT-U) methods, respectively. To increase their photocatalytic and antibacterial efficiencies, various amounts of silver were successfully loaded on the surfaces of these catalysts by using a facile photo-deposition technique. Their physical and chemical properties were evaluated by using scanning electron microscopy (SEM), transmission electron microscopy–energy dispersive X-ray spectroscopy (TEM–EDS), Brunauer–Emmett–Teller (BET) surface area, X-ray diffraction (XRD), and diffuse reflectance spectra (DRS). The photocatalytic performances of the synthesized catalysts were examined in coumarin and 1,4-hydroquinone solutions. The results showed that the hollow structure of NT-A played an important role in obtaining high specific surface area and appreciable photoactivity. In addition, Ag-loading on the surface of non-hollow structured NT-U could double the photocatalytic performance with an optimum Ag concentration of 10−6 mol g−1, while a slight but monotonous decrease was caused in this respect for the hollow surface of NTA upon increasing Ag concentration. Comparing the catalysts with different structures regarding the photocatalytic performance, silverized non-hollow NT-U proved competitive with the hollow NT-A catalyst without Ag-loading for efficient visible-light-driven photocatalytic oxidative degradations. The former one, due to the silver nanoparticles on the catalyst surface, displayed an appreciable antibacterial activity, which was comparable to that of a reference material practically applied for disinfection in polymer coatings.
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Affiliation(s)
- Abdul Wafi
- Department of General and Inorganic Chemistry, Center for Natural Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary; (A.W.); (E.S.-B.); (O.F.)
- Laboratory of Pharmaceutical Chemistry, Department of Pharmacy, Universitas Islam Negeri Maulana Malik Ibrahim Malang, Malang 65144, Indonesia
| | - Erzsébet Szabó-Bárdos
- Department of General and Inorganic Chemistry, Center for Natural Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary; (A.W.); (E.S.-B.); (O.F.)
| | - Ottó Horváth
- Department of General and Inorganic Chemistry, Center for Natural Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary; (A.W.); (E.S.-B.); (O.F.)
- Correspondence: ; Tel.: +36-88-624-000 (ext. 6049)
| | - Mihály Pósfai
- Environmental Mineralogy Research Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary;
| | - Éva Makó
- Department of Materials Engineering, Research Center for Engineering Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary;
| | - Tatjána Juzsakova
- Laboratory for Surfaces and Nanostructures, Research Center for Biochemical, Environmental and Chemical Engineering, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary;
| | - Orsolya Fónagy
- Department of General and Inorganic Chemistry, Center for Natural Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary; (A.W.); (E.S.-B.); (O.F.)
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Cloning, overexpression, purification, characterization and structural modelling of a metabolically active Fe 2+ dependent 2,6-dichloro-p-hydroquinone 1,2-dioxygenase (CpsA) from Bacillus cereus strain AOA-CPS_1. Int J Biol Macromol 2020; 161:247-257. [PMID: 32512093 DOI: 10.1016/j.ijbiomac.2020.05.268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 05/24/2020] [Accepted: 05/30/2020] [Indexed: 11/23/2022]
Abstract
2,6-Dichloro-p-hydroquinone (DiCHQ) aromatic-ring cleavage by DiCHQ 1,2-dioxygenase (CpsA) is very crucial for complete transformation of pentachlorophenol (PCP) to 2-chloromaleylacetate in Bacillus cereus AOA-CPS_1 (BcAOA). The 978 bp gene (cpsA) was detected and amplified in the genome of BcAOA; cloned, overexpressed and purified to homogeneity. CpsA showed a single ≅36.9 kDa protein band on SDS-PAGE and exhibited optimum activity at 30 °C and pH 9.0. CpsA was stable between 20 °C and 40 °C, and also retained about 90% of its activity at 60 °C for 120 min. The enzyme retained about 90% activity between pH 9.0 and 11.5 and 60% activity at pH 13.0. CpsA was found to be Fe2+ dependent as about 90% increased activity was observed in the presence of FeSO4. CpsA showed apparent vmax, Km, kcat and kcat/Km of 27.77 ± 0.9 μMs-1, 0.990 ± 0.03 mM, 4.20 ± 0.04 s-1 and 4.24 ± 0.03 s-1 mM-1, respectively at pH 9.0. Analysis of the reaction products via GC-MS confirmed 2-chloromaleylacetate as the ring-cleavage product. CpsA 3D structure revealed a conserved 2-His-1-carboxylate facial triad motif (His 9, His 244 and Thr 11), with Fe3+ at the centre. Findings from this study provide new insights into the involvement of this enzyme in PCP degradation and suggests alternate possible mechanism of ring-cleavage by dioxygenases.
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Awais A, Arsalan M, Sheng Q, Zheng J, Yue T. Rational Design of Highly Efficient One‐pot Synthesis of Ternary PtNiCo/FTO Nanocatalyst for Hydroquinone and Catechol Sensing. ELECTROANAL 2020. [DOI: 10.1002/elan.202060166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Azka Awais
- College of Chemistry & Materials Science/Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China
| | - Muhammad Arsalan
- College of Chemistry & Materials Science/Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China
| | - Qinglin Sheng
- College of Chemistry & Materials Science/Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China
- College of Food Science and Technology Northwest University Xi'an Shaanxi 710069 China
- Laboratory of Nutritional and Healthy Food-Individuation Manufacturing Engineering/Research Center of Food Safety Risk Assessment and Control Shaanxi Xi'an 710069 China
| | - Jianbin Zheng
- College of Chemistry & Materials Science/Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry Northwest University Xi'an Shaanxi 710069 China
| | - Tianli Yue
- College of Food Science and Technology Northwest University Xi'an Shaanxi 710069 China
- Laboratory of Nutritional and Healthy Food-Individuation Manufacturing Engineering/Research Center of Food Safety Risk Assessment and Control Shaanxi Xi'an 710069 China
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Wang Y, Liu Y, Yang M. Molecularly Imprinted Electrochemiluminescence Sensor for Sensitive and Selective Detection of Hydroquinone. CHEM LETT 2020. [DOI: 10.1246/cl.190878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Yan Wang
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Yiming Liu
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Minli Yang
- College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, P. R. China
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Li B, Ma X, Deng J, Li Q, Chen W, Li G, Chen G, Wang J. Comparison of acetaminophen degradation in UV-LED-based advance oxidation processes: Reaction kinetics, radicals contribution, degradation pathways and acute toxicity assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:137993. [PMID: 32220734 DOI: 10.1016/j.scitotenv.2020.137993] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/15/2020] [Accepted: 03/15/2020] [Indexed: 05/28/2023]
Abstract
Ultraviolet light emitting diode (UV-LED)-based advanced oxidation processes (AOPs) including UV-LED/chloramine (UV-LED/NH2Cl), UV-LED/hydrogen peroxide (UV-LED/H2O2) and UV-LED/persulfate (UV-LED/PS), were adopted for acetaminophen (AAP) removal. Results showed that AAP could be effectively degraded by the hybrid processes compared to solely using with UV irradiation and oxidants. The AAP degradation in the three UV-LED-based AOPs were in the order of UV-LED/PS > UV-LED/H2O2 > UV-LED/NH2Cl and followed a pseudo-first-order kinetics. The degradation rate constant (kobs) increased with increasing oxidant dosage, whereas overdosing lowered the AAP degradation. The second-order rate constants of HO, SO4-, and Cl with AAP were calculated as 5.15 × 109, 7.66 × 109 and 1.08 × 1010 M-1 s-1, respectively. Under neutral conditions, the contributions of UV-LED, HO, and Cl to AAP degradation were 4.21%, 60.15% and 35.64% in the UV-LED/NH2Cl system, whereas the respective contributions of UV-LED, HO and SO4- to AAP degradation were 2.09%, 22.84% and 75.07% in UV-LED/PS system, respectively. Meanwhile, the corresponding contributions of the involved reactive species were found to be pH-dependence. The natural organic materials (NOM) inhibited the AAP degradation, and the presence of Cl-, HCO3-, and NO3- had different effects on AAP degradation in the three hybrid processes. The AAP degradation was significantly inhibited in the three UV-LED-based AOPs in real water. In addition, the intermediate products were also identified, and possible degradation pathways were proposed in the three UV-LED-based AOPs. The acute toxicity bioassay using bacterium Vibrio fischeri suggested that the UV-LED/PS process was more effective than the UV-LED/H2O2 and UV-LED/NH2Cl processes in reducing the acute toxicity of the reacted AAP solution. Among the three UV-LED-based AOPs, the UV-LED/PS was found to be the most efficient process for AAP degradation.
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Affiliation(s)
- Boqiang Li
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China; Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China
| | - Xiaoyan Ma
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jing Deng
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qingsong Li
- Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China.
| | - Weizhu Chen
- Third Institute of Oceanography, Ministry of Republic of China, People Republic of China, Xiamen 361005, China
| | - Guoxin Li
- Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China
| | - Guoyuan Chen
- Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China
| | - Jiping Wang
- Water Resources and Environmental Institute, Xiamen University of Technology, Xiamen 361005, China
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Zeng XH, Du H, Zhao HM, Xiang L, Feng NX, Li H, Li YW, Cai QY, Mo CH, Wong MH, He ZL. Insights into the binding interaction of substrate with catechol 2,3-dioxygenase from biophysics point of view. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122211. [PMID: 32036315 DOI: 10.1016/j.jhazmat.2020.122211] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
This study aims to clarify the interaction mechanism of substrate with catechol 2,3-dioxygenase (C23O) through multi-technique combination. A novel C23O (named C23O-2G) was cloned, heterogeneously expressed, and identified as a new member in subfamily I.2 of extradiol dioxygenases. Based on the simulations of molecular docking and dynamics, the exact binding sites of catechol on C23O-2G were identified, and the catalytic mechanism mediated by key residues was proposed. The roles of the predicted residues during catalysis were confirmed by site-directed mutagenesis, and the mutation of Thr254 could significantly increase catalytic efficiency and substrate specificity of C23O-2G. The binding and thermodynamic parameters obtained from fluorescence spectra suggested that catechol could effectively quench the intrinsic fluorescence of C23O-2G via static and dynamic quenching mechanisms and spontaneously formed C23O-2G/catechol complex by the binding forces of hydrogen bond and van der Waals force. The results of UV-vis spectra, synchronous fluorescence, and CD spectra revealed obvious changes in the microenvironment and conformation of C23O-2G, especially for the secondary structure. The atomic force microscope images further demonstrated the changes from an appearance point of view. This study could improve our mechanistic understanding of representative dioxygenases involved in aromatic compound degradation.
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Affiliation(s)
- Xian-Hong Zeng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Huan Du
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China; Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL, 34945, USA.
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Nai-Xian Feng
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China.
| | - Ming-Hung Wong
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Zhen-Li He
- Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL, 34945, USA
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Yuan Q, Zhang H, Pan Z, Ling X, Wu M, Gui Z, Chen J, Peng J, Liu Z, Tan Q, Huang D, Xiu L, Chen W, Shi Z, Liu L. Regulatory loop between lncRNA FAS-AS1 and DNMT3b controls FAS expression in hydroquinone-treated TK6 cells and benzene-exposed workers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114147. [PMID: 32088430 DOI: 10.1016/j.envpol.2020.114147] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
Hydroquinone (HQ), one of the main metabolites of benzene, is a well-known human leukemogen. However, the specific mechanism of how benzene or HQ contributes to the development of leukemia is unknown. In a previous study, we demonstrated the upregulation of DNA methyltransferase (DNMT) expression in HQ-induced malignant transformed TK6 (HQ-TK6) cells. Here, we investigated whether a regulatory loop between the long noncoding RNA FAS-AS1 and DNMT3b exists in HQ-TK6 cells and benzene-exposed workers. We found that the expression of FAS-AS1 was downregulated in HQ-TK6 cells and workers exposed to benzene longer than 1.5 years via histone acetylation, and FAS-AS1 expression was negatively correlated with the time of benzene exposure. Restoration of FAS-AS1 in HQ-TK6 cells promoted apoptosis and inhibited tumorigenicity in female nude mice. Interestingly, treatment with a DNMT inhibitor (5-aza-2-deoxycytidine), histone deacetylase inhibitor (trichostatin A), or DNMT3b knockout led to increased FAS-AS1 through increased H3K27ac protein expression in HQ-TK6 cells, and DNMT3b knockout decreased H3K27ac and DNMT3b enrichment to the FAS-AS1 promoter region, which suggested that DNMT3b and/or histone acetylation involve FAS-AS1 expression. Importantly, restoration of FAS-AS1 resulted in reduced expression of DNMT3b and SIRT1 and increased expression of FAS in both HQ-TK6 cells and xenograft tissues. Moreover, the average DNMT3b expression in 17 paired workers exposed to benzene within 1.5 years was decreased, but that of the remaining 103 paired workers with longer exposure times was increased. Conversely, DNMT3b was negatively correlated with FAS-AS1 expression. Both FAS-AS1 and DNMT3b influenced the enrichment of H3K27ac in the FAS promoter region by regulating the expression of SIRT1, consequently upregulating FAS expression. Taken together, these observations demonstrate crosstalk between FAS-AS1 and DNMT3b via a mutual inhibition loop and indicate a new mechanism by which FAS-AS1 regulates the expression of FAS in benzene-related carcinogenesis.
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Affiliation(s)
- Qian Yuan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Haiqiao Zhang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Zhijie Pan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Xiaoxuan Ling
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Minhua Wu
- Department of Histology and Embryology, Guangdong Medical University, Zhanjiang, 524001, PR China
| | - Zhiming Gui
- Department of Urology, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, PR China
| | - Jialong Chen
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, 510515, PR China
| | - Jianming Peng
- Huizhou Hospital for Occupational Disease Prevention and Treatment, Huizhou, 516001, PR China
| | - Zhidong Liu
- Huizhou Hospital for Occupational Disease Prevention and Treatment, Huizhou, 516001, PR China
| | - Qiang Tan
- Foshan Institute of Occupational Disease Prevention and Control, Foshan, 528000, PR China
| | - Dongsheng Huang
- Guangdong Medical University Affiliated Longhua District Central Hospital, Shenzhen, PR China
| | - Liangchang Xiu
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Department of Histology and Embryology, Guangdong Medical University, Zhanjiang, 524001, PR China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, PR China
| | - Zhizhen Shi
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Linhua Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China.
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64
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Dondapati JS, Chen A. Quantitative structure-property relationship of the photoelectrochemical oxidation of phenolic pollutants at modified nanoporous titanium oxide using supervised machine learning. Phys Chem Chem Phys 2020; 22:8878-8888. [PMID: 32286586 DOI: 10.1039/d0cp01518k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Here we report on an advanced photoelectrochemical (PEC) oxidation of 22 phenolic pollutants based on modified nanoporous TiO2, which was directly grown on a titanium substrate electrochemically. Their degradation rate constants were experimentally determined and their physicochemical properties were computaionally calculated. The quantitative structure-property relationship (QSPR) was elucidated by employing multiple linear regression (MLR) method. A supervised machine learning approach was employed to build QSPR models. The high predictive abilities of the QSPR model were validated via leave-one-out (LOO) method and a strict regimen of statistical validation tests. The significant descriptors identified in the QSPR Model for the phenolic compounds were also assessed using a typical dye pollutant Rhodamine B, further confirming the high effectiveness and predictability of the optimized model. Our study has shown that the integrated effect of the structural, hydrophobic and topological properties along with electronic property should be considered in order to design an efficient PEC catalytic approach for environmental applications.
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Affiliation(s)
- Jesse S Dondapati
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| | - Aicheng Chen
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
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65
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Zhang H, Yuan Q, Pan Z, Ling X, Tan Q, Wu M, Zheng D, Xie P, Xie D, Liu L. Up-regulation of DNMT3b contributes to HOTAIRM1 silencing via DNA hypermethylation in cells transformed by long-term exposure to hydroquinone and workers exposed to benzene. Toxicol Lett 2020; 322:12-19. [PMID: 31899212 DOI: 10.1016/j.toxlet.2019.12.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/14/2019] [Accepted: 12/22/2019] [Indexed: 12/31/2022]
Abstract
Benzene exposure is a risk factor of acute myeloid leukemia (AML), during such carcinogenesis long non-coding RNAs (lncRNAs) are important epigenetic regulators. HOTAIRM1 (HOXA transcript antisense RNA, myeloid-specific 1) plays an indispensable role in the development of AML. Hydroquinone (HQ) is one major metabolite of benzene and its ideal replacement in toxicology research. But the influence of benzene or HQ on HOTAIRM1 expression in AML associated pathway is still unclear. In the TK6 cells with short-term exposure to HQ (HQ-ST cells) or long term HQ exposure induced malignant transformed TK6 cells (HQ-MT cells), the relationship between DNMT3b and HOTAIRM1 was explored. Comparing to counterparts, HOTAIRM1 expression was increased firstly and then decreased in HQ-ST cells, and definitely decreased in HQ-MT cells; while the expression change tendency of DNMT3b was in contrast to that of HOTAIRM1. Moreover, the average HOTAIRM1 expression of 17 paired workers being exposed to benzene within 1.5 years was increased, but that of the remaining 92 paired workers with longer exposure time was decreased. Furthermore, in 5-AzaC (DNA methyltransferase inhibitor) or TSA (histone deacetylation inhibitor) treated HQ-MT cells, the expression of HOTAIRM1 was restored by reduced DNA promoter methylation levels. HQ-MT cells with DNMT3b knockout by CRISPR/Cas9 displayed the promoter hypomethylation and the increase of HOTAIRM1, also confirmed in benzene exposure workers. These suggest that long term exposure to HQ or benzene might induce the increase of DNMT3b expression and the promoter hypermethylation to silence the expression of HOTAIRM1, a possible tumor-suppressor in the AML associated carcinogenesis pathway.
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MESH Headings
- Benzene/adverse effects
- Case-Control Studies
- Cell Line, Transformed
- Cell Line, Tumor
- DNA (Cytosine-5-)-Methyltransferases/biosynthesis
- DNA (Cytosine-5-)-Methyltransferases/genetics
- DNA Methylation/drug effects
- Enzyme Induction
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Neoplastic
- Gene Silencing/drug effects
- Humans
- Hydroquinones/toxicity
- Leukemia, Myeloid, Acute/chemically induced
- Leukemia, Myeloid, Acute/enzymology
- Leukemia, Myeloid, Acute/genetics
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Occupational Diseases/chemically induced
- Occupational Diseases/enzymology
- Occupational Diseases/genetics
- Occupational Exposure/adverse effects
- Promoter Regions, Genetic
- Risk Assessment
- DNA Methyltransferase 3B
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Affiliation(s)
- Haiqiao Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Qian Yuan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Zhijie Pan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Xiaoxuan Ling
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Qiang Tan
- Foshan Institute of Occupational Disease Prevention and Control, Foshan, Guangdong, 528000, PR China
| | - Minhua Wu
- Department of Histology and Embryology, Guangdong Medical University, Zhanjiang, PR China
| | - Dongyan Zheng
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Peien Xie
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Daxiao Xie
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China
| | - Linhua Liu
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China.
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66
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Mattos GJ, Moraes JT, Barbosa EC, Camargo PH, Dekker RF, Barbosa-Dekker AM, Sartori ER. Laccase stabilized on β-D-glucan films on the surface of carbon black/gold nanoparticles: A new platform for electrochemical biosensing. Bioelectrochemistry 2019; 129:116-123. [DOI: 10.1016/j.bioelechem.2019.05.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 11/30/2022]
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67
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Khan A, Chen Z, Zhao S, Ni H, Pei Y, Xu R, Ling Z, Salama ES, Liu P, Li X. Micro-aeration in anode chamber promotes p-nitrophenol degradation and electricity generation in microbial fuel cell. BIORESOURCE TECHNOLOGY 2019; 285:121291. [PMID: 30999190 DOI: 10.1016/j.biortech.2019.03.130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/24/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Biodegradation of recalcitrant organic compounds in microbial fuel cell (MFC) is limited, due to its strong electron affinity and persisted in anaerobic condition. In this study, Pseudomonas monteilii LZU-3 degraded p-nitrophenol (PNP) and generated current at 100 mg L-1 of PNP in anode MFC with the addition of oxygen. The highest PNP degradation was 4, 37.75, and 99.89% in anaerobic, aerobic, and aerated anode of MFC respectively, at 7 h. The maximum voltage generation in aerated anode was 183 mV, which was comparatively higher than aerobic (150 mV) and anaerobic (68 mV). The qRT-PCR results confirmed that the oxygenase genes in strain LZU-3 were up-regulated from 17.51 to 39.39-fold at 1.6-4.5 mg L-1 of oxygen concentrations resulted in PNP degradation in anode MFC. This study demonstrated that supplementation of oxygen into the anode MFC might be a potential approach for biodegradation of recalcitrant compounds and electricity generation.
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Affiliation(s)
- Aman Khan
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Zhengjun Chen
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, Gansu, PR China
| | - Shuai Zhao
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Hongyuhang Ni
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Yaxin Pei
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Rong Xu
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Zhenmin Ling
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - El-Sayed Salama
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou 730000, Gansu, PR China
| | - Pu Liu
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China; Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou 730020, Gansu, PR China
| | - Xiangkai Li
- MOE, Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou 730000, Gansu, PR China; Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province, Gansu Academy of Membrane Science and Technology, Lanzhou 730020, Gansu, PR China.
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68
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Chang M, Chang B, Pan Y, Lin B, Lian Y, Lee M, Yeung S, Lin L, Jeng J. Antiplatelet, antioxidative, and anti‐inflammatory effects of hydroquinone. J Cell Physiol 2019; 234:18123-18130. [DOI: 10.1002/jcp.28444] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/05/2019] [Accepted: 02/14/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Mei‐Chi Chang
- Biomedical Science Team Chang Gung University of Science and Technology Taoyuan Taiwan
- Department of Dentistry Chang Gung Memorial Hospital Taipei Taiwan
| | - Bei‐En Chang
- Graduate Institute of Oral Biology National Taiwan University Medical College Taipei Taiwan
| | - Yu‐Hwa Pan
- Department of Dentistry Chang Gung Memorial Hospital Taipei Taiwan
| | - Bor‐Ru Lin
- Department of Diagnotherapeutics National Taiwan University Hospital Taipei Taiwan
| | - Yun‐Chia Lian
- Department of Dentistry Chang Gung Memorial Hospital Taipei Taiwan
| | - Ming‐Shu Lee
- School of Dentistry & Department of Dentistry National Taiwan University Medical College and National Taiwan University Hospital Taipei Taiwan
| | - Sin‐Yuet Yeung
- Department of Dentistry Chang Gung Memorial Hospital Taipei Taiwan
| | - Li‐Deh Lin
- School of Dentistry & Department of Dentistry National Taiwan University Medical College and National Taiwan University Hospital Taipei Taiwan
| | - Jiiang‐Huei Jeng
- School of Dentistry & Department of Dentistry National Taiwan University Medical College and National Taiwan University Hospital Taipei Taiwan
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69
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Zharikova NV, Zhurenko EY, Iasakov TR, Korobov VV, Erastov AS, Markusheva TV. Conversion of 4-Chlorophenoxyacetic Acid by the Pseudomonas sp. 36DCP Strain. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819020169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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70
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Hu YL, Pang W, Huang Y, Zhang Y, Zhang CJ. The Gastric Microbiome Is Perturbed in Advanced Gastric Adenocarcinoma Identified Through Shotgun Metagenomics. Front Cell Infect Microbiol 2018; 8:433. [PMID: 30619779 PMCID: PMC6299874 DOI: 10.3389/fcimb.2018.00433] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/30/2018] [Indexed: 12/11/2022] Open
Abstract
Objective: Dysbiosis of gastric microbiota such as Helicobacter pylori plays a significant role in pathogenesis and progression of gastric cancer. Our aim was to evaluate the composition and functional effects of gastric microbiota in superficial gastritis (SG) and advanced gastric adenocarcinoma (GC). Methods: We carried out shotgun metagenomic sequencing on gastric wash samples from 6 patients with GC and 5 patients with SG. The taxonomic composition was profiled using MetaPhlAn2 and functional gene pathway was profiled using HUMAnN2. Differences in microbial composition and pathways between the two patient groups were assessed via LEfSe. Results: The gastric microbiota in GC patients was characterized by reduced species richness, enrichment of 13 bacterial taxa and depletion of 31 taxa (q < 0.05). The most representative taxa which were abundant in GC corresponded to the commensals or opportunistic pathogens that usually colonize the oral cavity, including genera Neisseria, Alloprevotella, and Aggregatibacter, species Streptococcus_mitis_oralis_pneumoniae and strain Porphyromonas_endodontalis.t_GCF_000174815. Each of the three GC-associated genera could separate GC from SG completely. In particular, Sphingobium yanoikuyae, a bacterium capable of degrading carcinogenic compounds, was depleted in GC. Functionally, pathways associated with the biosynthesis of lipopolysaccharide (LPS) and L-arginine were enriched in GC, whereas pathways involved in the fermentation of short chain fatty acids (SCFAs) and branched amino acid metabolism were more abundant in SG. Conclusions: Our results present new alterations in the gastric microbiome in patients with GC from a whole-genome perspective, suggesting that microbiome composition and function can be used for prognosis and diagnosis of GC.
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Affiliation(s)
- Yuan-Liang Hu
- Graduate School, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wei Pang
- Graduate School, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yun Huang
- Department of General Surgery, Navy General Hospital, Beijing, China
| | - Yan Zhang
- Department of General Surgery, Navy General Hospital, Beijing, China
| | - Chao-Jun Zhang
- Graduate School, Third Military Medical University (Army Medical University), Chongqing, China.,Department of General Surgery, Navy General Hospital, Beijing, China
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71
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Tan Q, Li J, Peng J, Liu Z, Liu J, Zhang H, Yuan Q, Pan Z, Liu L. E4F1 silencing inhibits the cell growth through cell-cycle arrest in malignant transformed cells induced by hydroquinone. J Biochem Mol Toxicol 2018; 33:e22269. [PMID: 30506647 DOI: 10.1002/jbt.22269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/09/2018] [Accepted: 10/26/2018] [Indexed: 12/27/2022]
Abstract
Hydroquinone (HQ), one of the most significant metabolic activation products of benzene in an organism, can cause hematological toxicity, such as acute myeloid leukemia. It is a clear carcinogen that can cause changes in the disorder of cell cycle and cell growth. However, its molecular mechanisms remain unclear. E4 transcription factor 1 (E4F1), an important transcription factor, participating in the regulation of cell cycle may be related to the occurrence of tumor. Here, we examined the HQ-induced malignant transformed TK6 cells (TK6-HT) to illustrate the role of E4F1 in carcinogenesis. The present study showed that both the expressions of E4F1 messenger RNA and protein increased obviously in TK6-HT, preliminarily indicating that E4F1 is associated with HQ-induced carcinogenesis. To further explore the role of E4F1, we established E4F1 silencing TK6-HT (pLVX-shE4F1) and its control cells (pLVX-shNC) using lentiviral short hairpin RNA (shRNA) interference expression plasmid vector pLVX-shRNA. Flow cytometry and cell counting kit-8 assay were used to determine the effects of E4F1 silencing on cell cycle and cell growth, respectively. E4F1 silencing inhibited cell growth in TK6-HT. The results from flow cytometry indicated that the inhibitory effect on cell growth may be the results of the E4F1 silencing-induced accumulation in G2/M compared with TK6-HT-shNC. Meanwhile, levels of DNA damage (γ-H2AX), proteins of Rb and phosphorylated Rb, and reactive oxygen species were increased in TK6-HT-shRNA2 cells, which is the critical reason of cell-cycle arrest. In conclusion, E4F1 silencing inhibits the cell growth through cell-cycle arrest in malignant transformed cells induced by HQ.
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Affiliation(s)
- Qiang Tan
- Foshan Institute of Occupational Disease Prevention and Control, Foshan, Guangdong, China
| | - Jieyou Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.,School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jianming Peng
- Huizhou Hospital for Occupational Disease Prevention and Treatment, Huizhou, China
| | - Zhidong Liu
- Huizhou Hospital for Occupational Disease Prevention and Treatment, Huizhou, China
| | - Jiaxian Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Haiqiao Zhang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Qian Yuan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zhijie Pan
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Linhua Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.,Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
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72
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Ulaszewska M, Vázquez-Manjarrez N, Garcia-Aloy M, Llorach R, Mattivi F, Dragsted LO, Praticò G, Manach C. Food intake biomarkers for apple, pear, and stone fruit. GENES AND NUTRITION 2018; 13:29. [PMID: 30519365 PMCID: PMC6267079 DOI: 10.1186/s12263-018-0620-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022]
Abstract
Fruit is a key component of a healthy diet. However, it is still not clear whether some classes of fruit may be more beneficial than others and whether all individuals whatever their age, gender, health status, genotype, or gut microbiota composition respond in the same way to fruit consumption. Such questions require further observational and intervention studies in which the intake of a specific fruit can be precisely assessed at the population and individual levels. Within the Food Biomarker Alliance Project (FoodBAll Project) under the Joint Programming Initiative “A Healthy Diet for a Healthy Life”, an ambitious action was undertaken aiming at reviewing existent literature in a systematic way to identify validated and promising biomarkers of intake for all major food groups, including fruits. This paper belongs to a series of reviews following the same BFIRev protocol and is focusing on biomarkers of pome and stone fruit intake. Selected candidate biomarkers extracted from the literature search went through a validation process specifically developed for food intake biomarkers.
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Affiliation(s)
- Marynka Ulaszewska
- 1Research and Innovation Centre Food Quality and Nutrition, Fondazione Edmund Mach, Via Mach 1, San Michele all'Adige, 38010 Trento, Italy
| | - Natalia Vázquez-Manjarrez
- 2Human Nutrition Unit, Université Clermont Auvergne, INRA, F63000 Clermont-Ferrand, France.,3Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Mar Garcia-Aloy
- 4Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain.,5CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Rafael Llorach
- 4Biomarkers and Nutrimetabolomic Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain.,5CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Fulvio Mattivi
- 1Research and Innovation Centre Food Quality and Nutrition, Fondazione Edmund Mach, Via Mach 1, San Michele all'Adige, 38010 Trento, Italy.,6Center Agriculture Food Environment, University of Trento, San Michele all'Adige, Trento, Italy
| | - Lars O Dragsted
- 3Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Giulia Praticò
- 3Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Claudine Manach
- 2Human Nutrition Unit, Université Clermont Auvergne, INRA, F63000 Clermont-Ferrand, France
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73
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Protective Effects of Aqueous Extracts of Flos lonicerae Japonicae against Hydroquinone-Induced Toxicity in Hepatic L02 Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4528581. [PMID: 30581530 PMCID: PMC6276457 DOI: 10.1155/2018/4528581] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/21/2018] [Accepted: 10/04/2018] [Indexed: 02/06/2023]
Abstract
Hydroquinone (HQ) is widely used in food stuffs and is an occupational and environmental pollutant. Although the hepatotoxicity of HQ has been demonstrated both in vitro and in vivo, the prevention of HQ-induced hepatotoxicity has yet to be elucidated. In this study, we focused on the intervention effect of aqueous extracts of Flos lonicerae Japonicae (FLJ) on HQ-induced cytotoxicity. We demonstrated that HQ reduced cell viability in a concentration-dependent manner by administering 160 μmol/L HQ for 12 h as the positive control of cytotoxicity. The aqueous FLJ extracts significantly increased cell viability and decreased LDH release, ALT, and AST in a concentration-dependent manner compared with the corresponding HQ-treated groups in hepatic L02 cells. This result indicated that aqueous FLJ extracts could protect the cytotoxicity induced by HQ. HQ increased intracellular MDA and LPO and decreased the activities of GSH, GSH-Px, and SOD in hepatic L02 cells. In addition, aqueous FLJ extracts significantly suppressed HQ-stimulated oxidative damage. Moreover, HQ promoted DNA double-strand breaks (DSBs) and the level of 8-hydroxy-2'-deoxyguanosine and apoptosis. However, aqueous FLJ extracts reversed HQ-induced DNA damage and apoptosis in a concentration-dependent manner. Overall, our results demonstrated that the toxicity of HQ was mediated by intracellular oxidative stress, which activated DNA damage and apoptosis. The findings also proved that aqueous FLJ extracts exerted protective effects against HQ-induced cytotoxicity in hepatic L02 cells.
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74
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Zhang X, Wang B, Liu Z. Coniferous litter extracts inhibit the litter decomposition of Catalpa fargesii Bur. and Eucommia ulmoides Oliver. ACTA OECOLOGICA 2018. [DOI: 10.1016/j.actao.2018.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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75
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Weingartner AM, Sauer DF, Dhoke GV, Davari MD, Ruff AJ, Schwaneberg U. A hydroquinone-specific screening system for directed P450 evolution. Appl Microbiol Biotechnol 2018; 102:9657-9667. [PMID: 30191291 PMCID: PMC6208966 DOI: 10.1007/s00253-018-9328-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/10/2018] [Accepted: 08/14/2018] [Indexed: 11/24/2022]
Abstract
The direct hydroxylation of benzene to hydroquinone (HQ) under mild reaction conditions is a challenging task for chemical catalysts. Cytochrome P450 (CYP) monooxygenases are known to catalyze the oxidation of a variety of aromatic compounds with atmospheric dioxygen. Protein engineering campaigns led to the identification of novel P450 variants, which yielded improvements in respect to activity, specificity, and stability. An effective screening strategy is crucial for the identification of improved enzymes with desired characteristics in large mutant libraries. Here, we report a first screening system designed for screening of P450 variants capable to produce hydroquinones. The hydroquinone quantification assay is based on the interaction of 4-nitrophenylacetonitrile (NpCN) with hydroquinones under alkaline conditions. In the 96-well plate format, a low detection limit (5 μM) and a broad linear detection range (5 to 250 μM) were obtained. The NpCN assay can be used for the quantification of dihydroxylated aromatic compounds such as hydroquinones, catechols, and benzoquinones. We chose the hydroxylation of pseudocumene by P450 BM3 as a target reaction and screened for improved trimethylhydroquinone (TMHQ) formation. The new P450 BM3 variant AW2 (R47Q, Y51F, I401M, A330P) was identified by screening a saturation mutagenesis library of amino acid position A330 with the NpCN assay. In summary, a 70-fold improved TMHQ formation was achieved with P450 BM3 AW2 when compared to the wild type (WT) and a 1.8-fold improved TMHQ formation compared to the recently reported P450 BM3 M3 (R47S, Y51W, A330F, I401M).
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Affiliation(s)
| | - Daniel F Sauer
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
| | - Gaurao V Dhoke
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
| | - Mehdi D Davari
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany
| | - Anna Joëlle Ruff
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany.
| | - Ulrich Schwaneberg
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074, Aachen, Germany.
- DWI - Leibniz Institut für Interaktive Materialien, Forckenbeckstraße 50, 52074, Aachen, Germany.
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76
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Ohlendorf D, Fisch V, Doerry C, Schamberger S, Oremek G, Ackermann H, Schulze J. Standard reference values of the upper body posture in healthy young female adults in Germany: an observational study. BMJ Open 2018; 8:e022236. [PMID: 30082360 PMCID: PMC6078251 DOI: 10.1136/bmjopen-2018-022236] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE Classifications of posture deviations are only possible compared with standard values. However, standard values have been published for healthy male adults but not for female adults. DESIGN Observational study. SETTING Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe-University Frankfurt/Main. PARTICIPANTS 106healthy female volunteers (21-30 years old; 25.1±2.7 years) were included. Their body weight ranged from 46 to 106 kg (60.3±7.9 kg), the heights from 1.53 to 1.82 m (1.69±0.06 m) and the body mass index from 16.9 kg/m² to 37.6 kg/m² (21.1±2.6 kg/m²). OUTCOME MEASURES A three-dimensional back scan was performed to measure the upper back posture in habitual standing. The tolerance ranges and CI were calculated. Group differences were tested by the Wilcoxon Mann-Whitney U test. RESULTS In normal posture, the spinal column was marginally twisted to the left, and the vertebrae were marginally rotated to the right. The kyphosis angle is larger than the lumbar angle. Consequently, a more kyphotic posture is observed in the sagittal plane. The habitual posture is slightly scoliotic with a rotational component (scapular depression right, right scapula marginally more dorsally, high state of pelvic right, iliac right further rotated anteriorly). CONCLUSIONS Healthy young women have an almost ideally balanced posture with minimal ventral body inclination and a marginal scoliotic deviation. Compared with young males, women show only marginal differences in the upper body posture. These values allow a comparison to other studies, both for control and patient data, and may serve as guideline in both clinical practice and scientific studies.
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Affiliation(s)
- Daniela Ohlendorf
- Institute of Occupational, Social and Environmental Medicine, Goethe Universität Frankfurt am Main, Frankfurt, Germany
| | - Vanessa Fisch
- Institute of Occupational, Social and Environmental Medicine, Goethe Universität Frankfurt am Main, Frankfurt, Germany
| | - Charlotte Doerry
- Institute of Occupational, Social and Environmental Medicine, Goethe Universität Frankfurt am Main, Frankfurt, Germany
| | - Sebastian Schamberger
- School of Dentistry, Department of Orthodontics, Goethe-University Frankfurt, Frankfurt, Germany
| | - Gerhard Oremek
- Institute of Occupational, Social and Environmental Medicine, Goethe Universität Frankfurt am Main, Frankfurt, Germany
| | - Hanns Ackermann
- Institute of Biostatistics and Mathematical Modeling, Goethe University Hospital, Frankfurt, Germany
| | - Johannes Schulze
- Institute of Occupational, Social and Environmental Medicine, Goethe Universität Frankfurt am Main, Frankfurt, Germany
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77
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Żur J, Piński A, Marchlewicz A, Hupert-Kocurek K, Wojcieszyńska D, Guzik U. Organic micropollutants paracetamol and ibuprofen-toxicity, biodegradation, and genetic background of their utilization by bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:21498-21524. [PMID: 29923050 PMCID: PMC6063337 DOI: 10.1007/s11356-018-2517-x] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/07/2018] [Indexed: 05/26/2023]
Abstract
Currently, analgesics and nonsteroidal anti-inflammatory drugs (NSAIDs) are classified as one of the most emerging group of xenobiotics and have been detected in various natural matrices. Among them, monocyclic paracetamol and ibuprofen, widely used to treat mild and moderate pain are the most popular. Since long-term adverse effects of these xenobiotics and their biological and pharmacokinetic activity especially at environmentally relevant concentrations are better understood, degradation of such contaminants has become a major concern. Moreover, to date, conventional wastewater treatment plants (WWTPs) are not fully adapted to remove that kind of micropollutants. Bioremediation processes, which utilize bacterial strains with increased degradation abilities, seem to be a promising alternative to the chemical methods used so far. Nevertheless, despite the wide prevalence of paracetamol and ibuprofen in the environment, toxicity and mechanism of their microbial degradation as well as genetic background of these processes remain not fully characterized. In this review, we described the current state of knowledge about toxicity and biodegradation mechanisms of paracetamol and ibuprofen and provided bioinformatics analysis concerning the genetic bases of these xenobiotics decomposition.
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Affiliation(s)
- Joanna Żur
- Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Artur Piński
- Department of Plant Anatomy and Cytology, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Ariel Marchlewicz
- Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Katarzyna Hupert-Kocurek
- Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Danuta Wojcieszyńska
- Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland
| | - Urszula Guzik
- Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032, Katowice, Poland.
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78
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In vitro assessment of the cytotoxic, DNA damaging, and cytogenetic effects of hydroquinone in human peripheral blood lymphocytes. Arh Hig Rada Toksikol 2018; 68:322-335. [DOI: 10.1515/aiht-2017-68-3060] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 12/01/2017] [Indexed: 11/15/2022] Open
Abstract
Abstract
This study investigated the mechanisms of hydroquinone toxicity and assessed the relationships between its cytotoxic, genotoxic, and cytogenetic effects tested at 8, 140, and 280 μg mL-1 in human peripheral blood lymphocytes exposed for 24 h. The outcomes of the treatments were evaluated using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus (CBMN) cytome assay. The tested hydroquinone concentrations produced relatively weak cytotoxicity in resting lymphocytes, which mostly died via apoptosis. Hydroquinone’s marked genotoxic effects were detected using the alkaline comet assay. Significantly decreased values of all comet parameters compared to controls indicated specific mechanisms of hydroquinone-DNA interactions. Our results suggest that the two higher hydroquinone concentrations possibly led to cross-linking and adduct formation. Increased levels of DNA breakage measured following exposure to the lowest concentration suggested mechanisms related to oxidative stress and inhibition of topoisomerase II. At 8 μg mL-1, hydroquinone did not significantly affect MN formation. At 140 and 280 μg mL-1, it completely blocked lymphocyte division. The two latter concentrations also led to erythrocyte stabilization and prevented their lysis. At least two facts contribute to this study’s relevance: (I) this is the first study that quantifies the degree of reduction in total comet area measured in lymphocyte DNA after hydroquinone treatment, (II) it is also the first one on a lymphocyte model that adopted the “cytome” protocol in an MN assay and found that lymphocytes exposure even to low hydroquinone concentration resulted in a significant increase of nuclear bud frequency. Considering the limitations of the lymphocyte model, which does not possess intrinsic metabolic activation, in order to unequivocally prove the obtained results further studies using other appropriate cell lines are advised.
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79
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Kwok TC, Ojha S, Dorling J. Feed thickeners in gastro-oesophageal reflux in infants. BMJ Paediatr Open 2018; 2:e000262. [PMID: 30019018 PMCID: PMC6045726 DOI: 10.1136/bmjpo-2018-000262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 05/29/2018] [Indexed: 01/01/2023] Open
Affiliation(s)
- T'ng Chang Kwok
- Academic Division of Child Health, University of Nottingham, Nottingham, UK
| | - Shalini Ojha
- Division of Graduate Entry Medicine (Derby), School of Medicine, University of Nottingham, Nottingham, UK
| | - Jon Dorling
- Academic Division of Child Health, University of Nottingham, Nottingham, UK
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80
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Cassano R, Di Gioia ML, Mellace S, Picci N, Trombino S. Hemostatic gauze based on chitosan and hydroquinone: preparation, characterization and blood coagulation evaluation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:190. [PMID: 29116465 DOI: 10.1007/s10856-017-6000-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 10/25/2017] [Indexed: 05/05/2023]
Abstract
This work concerns on the preparation and performance evaluation of a new chitosan hydroquinone based gauze for hemostatic use. Chitosan and hydroquinone were firstly connected by etherification and then linked to the pre-carboxylate gauze. The functionalized material and the chitosan-hydroquinone ether were characterized by Fourier Transform Infrared (FT-IR) Spectroscopy and Differential Scanning Calorimetry (DSC). FT-IR results showed that an esterification occurred on carboxylic group of the gauze. The gauze functionalization degree was also evaluated by volumetric analysis. The ether hydroquinone content was obtained by the Folin test. Moreover, the linkage between hydroquinone and chitosan was confirmed by nuclear magnetic resonance (NMR). The hemostatic activity of functionalized gauze was evaluated by dynamic blood clotting assays. The obtained results showed that the prepared material can shorten the blood clotting time and induce the adhesion and activation of platelets. Finally, swelling characteristic of the new gauze was evaluated to confirm its high capacity to absorb the blood.
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Affiliation(s)
- Roberta Cassano
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, Cosenza, 87036, Italy.
| | - Maria Luisa Di Gioia
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, Cosenza, 87036, Italy
| | - Silvia Mellace
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, Cosenza, 87036, Italy
| | - Nevio Picci
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, Cosenza, 87036, Italy
| | - Sonia Trombino
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, Cosenza, 87036, Italy
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81
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Ramachandran S, Sivasamy A. Nanocrystalline ZnO as a Visible Active Photocatalyst for the Degradation of Benzene-1,4-diol. INTERNATIONAL JOURNAL OF NANOSCIENCE 2017. [DOI: 10.1142/s0219581x17600080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We have synthesized nanocrystalline ZnO by a simple precipitation method. The prepared ZnO was found to be highly phase pure and nanocrystalline hexagonal wurtzite structure. UV–Visible–DRS spectroscopy showed the material to have bandgap energy of 3.22[Formula: see text]eV. HR-SEM image revealed the material to be made up of distinct hexagonal particles with a highly porous surface. AFM analysis was employed to confirm the high surface roughness and porosity of the material. The photocatalytic activity of the prepared ZnO was evaluated by the degradation of benzene-1,4-diol (hydroquinone), under visible light irradiation. Preliminary experiments showed the catalyst to be effective at neutral pH with an optimum catalyst dosage of 4[Formula: see text]g/L. Kinetic studies showed the degradation reaction to follow pseudo-first-order kinetics. In the presence of commonly used industrial electrolytes, the catalyst exhibited a decrease in efficiency. Reusability studies showed the catalytic efficiency of ZnO to diminish marginally after the third cycle of reuse.
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Affiliation(s)
- Saranya Ramachandran
- Chemical Engineering Area, CSIR-Central Leather Research Institute, Adyar, Chennai-600020, Tamil Nadu, India
| | - A. Sivasamy
- Chemical Engineering Area, CSIR-Central Leather Research Institute, Adyar, Chennai-600020, Tamil Nadu, India
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82
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Chang NF, Chen YS, Lin YJ, Tai TH, Chen AN, Huang CH, Lin CC. Study of Hydroquinone Mediated Cytotoxicity and Hypopigmentation Effects from UVB-Irradiated Arbutin and DeoxyArbutin. Int J Mol Sci 2017; 18:ijms18050969. [PMID: 28467382 PMCID: PMC5454882 DOI: 10.3390/ijms18050969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 04/25/2017] [Accepted: 04/29/2017] [Indexed: 01/09/2023] Open
Abstract
Arbutin (Arb) and deoxyArbutin (dA) are both effective hypopigmentation agents. However, they are glucoside derivatives of hydroquinone (HQ), which may be decayed into HQ under higher energy environments. Therefore, safety and toxicity are very important issues when considering the usage of these compounds. However, no study has verified the properties of Ultra-Violet B (UVB)-irradiated Arb and dA. In this work, we investigated the cytotoxicity and hypopigmentation effects of UVB-irradiated Arb and dA in Detroit 551 human fibroblast cells and B16-F10 mouse melanoma cells. The results showed that UVB-irradiated Arb and dA have strong cytotoxicity for the fibroblast cells, especially for dA, the caspase-3 is also activated by the treatment of UVB-irradiated dA in Detroit 551 cells. The results correlated with the produced HQ. In addition, UVB-irradiated Arb and dA suppressed the production of melanin in melanoma cells; this is due to the release of HQ that compensates for the UVB triggered Arb and dA decomposition.
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Affiliation(s)
- Nai-Fang Chang
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
| | - Yi-Shyan Chen
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
| | - Ying-Ju Lin
- Department of Medical Research, China Medical University Hospital, 2 Yuh-Der Road, Taichung 40447, Taiwan.
- School of Chinese Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan.
| | - Ting-Hsuan Tai
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
| | - An-Ni Chen
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
| | - Chen-Hsuan Huang
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
| | - Chih-Chien Lin
- Department of Cosmetic Science, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung 43301, Taiwan.
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83
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Gomisin N Inhibits Melanogenesis through Regulating the PI3K/Akt and MAPK/ERK Signaling Pathways in Melanocytes. Int J Mol Sci 2017; 18:ijms18020471. [PMID: 28241436 PMCID: PMC5344003 DOI: 10.3390/ijms18020471] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/09/2017] [Accepted: 02/13/2017] [Indexed: 01/15/2023] Open
Abstract
Gomisin N, one of the lignan compounds found in Schisandra chinensis has been shown to possess anti-oxidative, anti-tumorigenic, and anti-inflammatory activities in various studies. Here we report, for the first time, the anti-melenogenic efficacy of Gomisin N in mammalian cells as well as in zebrafish embryos. Gomisin N significantly reduced the melanin content without cellular toxicity. Although it was not capable of modulating the catalytic activity of mushroom tyrosinase in vitro, Gomisin N downregulated the expression levels of key proteins that function in melanogenesis. Gomisin N downregulated melanocortin 1 receptor (MC1R), adenylyl cyclase 2, microphthalmia-associated transcription factor (MITF), tyrosinase, tyrosinase-related protein-1 (TRP-1), and tyrosinase-related protein-2 (TRP-2). In addition, Gomisin N-treated Melan-A cells exhibited increased p-Akt and p-ERK levels, which implies that the activation of the PI3K/Akt and MAPK/ERK pathways may function to inhibit melanogenesis. We also validated that Gomisin N reduced melanin production by repressing the expression of MITF, tyrosinase, TRP-1, and TRP-2 in mouse and human cells as well as in developing zebrafish embryos. Collectively, we conclude that Gomisin N inhibits melanin synthesis by repressing the expression of MITF and melanogenic enzymes, probably through modulating the PI3K/Akt and MAPK/ERK pathways.
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84
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In Situ Growth of Flexible Polyphenylene-Conjugated Microporous Polymer Films for Fluorescence Detection of the Total Quantity of Developing Agents and Their Oxidation Products. JOURNAL OF ANALYSIS AND TESTING 2017. [DOI: 10.1007/s41664-017-0006-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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85
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Skin Bleaching and Dermatologic Health of African and Afro-Caribbean Populations in the US: New Directions for Methodologically Rigorous, Multidisciplinary, and Culturally Sensitive Research. Dermatol Ther (Heidelb) 2016; 6:453-459. [PMID: 27837412 PMCID: PMC5120641 DOI: 10.1007/s13555-016-0154-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/12/2022] Open
Abstract
Skin-bleaching practices, such as using skin creams and soaps to achieve a lighter skin tone, are common throughout the world and are triggered by cosmetic reasons that oftentimes have deep historical, economic, sociocultural, and psychosocial roots. Exposure to chemicals in the bleaching products, notably, mercury (Hg), hydroquinone, and steroids, has been associated with a variety of adverse health effects, such as Hg poisoning and exogenous ochronosis. In New York City (NYC), skin care product use has been identified as an important route of Hg exposure, especially among Caribbean-born blacks and Dominicans. However, surprisingly sparse information is available on the epidemiology of the health impacts of skin-bleaching practices among these populations. We highlight the dearth of large-scale, comprehensive, community-based, clinical, and translational research in this area, especially the limited skin-bleaching-related research among non-White populations in the US. We offer five new research directions, including investigating the known and under-studied health consequences among populations for which the skin bleach practice is newly emerging at an alarming rate using innovative laboratory and statistical methods. We call for conducting methodologically rigorous, multidisciplinary, and culturally sensitive research in order to provide insights into the root and the epidemiological status of the practice and provide evidence of exposure-outcome associations, with an ultimate goal of developing potential intervention strategies to reduce the health burdens of skin-bleaching practice.
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86
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Gbetoh MH, Amyot M. Mercury, hydroquinone and clobetasol propionate in skin lightening products in West Africa and Canada. ENVIRONMENTAL RESEARCH 2016; 150:403-410. [PMID: 27372064 DOI: 10.1016/j.envres.2016.06.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/09/2016] [Accepted: 06/18/2016] [Indexed: 05/18/2023]
Abstract
Skin lightening products are types of cosmetics (creams, gels, lotions and soaps) applied voluntarily on skin. Several of these products contain a variety of active ingredients that are highly toxic. Among those toxic agents, the present study focuses on mercury, hydroquinone, and clobetasol propionate. Out of the 93 lightening soaps and 98 creams purchased in large city markets in sub-Saharan West Africa and in small ethnic shops in Canada, 68-84% of all creams and 7.5-65% of all soaps exceeded regulatory guidelines for at least one active ingredient when considering different regulations. Mercury was found in high concentrations mainly in soaps, while hydroquinone and clobetasol propionate concentrations exceeded US FDA standards in some creams for all countries included in our study. Concentrations of the three compounds declared on labels of soaps and creams usually did not correspond to concentrations actually measured, particularly for mercury and hydroquinone. Overall, our results indicate that most studied skin-lightening products are potentially toxic and that product labels are frequently inaccurate with respect to the presence of toxic agents.
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Affiliation(s)
- Mètogbé Honoré Gbetoh
- Département de sciences biologiques, Université de Montréal, Montréal, QC, Canada H2V 2S9
| | - Marc Amyot
- Département de sciences biologiques, Université de Montréal, Montréal, QC, Canada H2V 2S9.
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87
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Liu L, Ling X, Wu M, Chen J, Chen S, Tan Q, Chen J, Liu J, Zou F. Rb silencing mediated by the down-regulation of MeCP2 is involved in cell transformation induced by long-term exposure to hydroquinone. Mol Carcinog 2016; 56:651-663. [DOI: 10.1002/mc.22523] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 06/04/2016] [Accepted: 07/01/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Linhua Liu
- Department of Occupational Health and Occupational Medicine; Guangdong Provincial Key Laboratory of Tropical Disease Research; School of Public Health and Tropical Medicine; Southern Medical University; Guangzhou PR China
- Department of Environmental and Occupational Health; Dongguan Key Laboratory of Environmental Medicine; School of Public Health; Guangdong Medical University; Dongguan PR China
| | - Xiaoxuan Ling
- Department of Environmental and Occupational Health; Dongguan Key Laboratory of Environmental Medicine; School of Public Health; Guangdong Medical University; Dongguan PR China
- School of Public Health; Guangzhou Medical University; Guangzhou PR China
| | - Minhua Wu
- Department of Histology and Embryology; Guangdong Medical University; Zhanjiang PR China
| | - Jialong Chen
- Department of Occupational Health and Occupational Medicine; Guangdong Provincial Key Laboratory of Tropical Disease Research; School of Public Health and Tropical Medicine; Southern Medical University; Guangzhou PR China
- Department of Environmental and Occupational Health; Dongguan Key Laboratory of Environmental Medicine; School of Public Health; Guangdong Medical University; Dongguan PR China
| | - Shaoqiao Chen
- Department of Clinical Laboratory; The First Affiliated Hospital of Sun Yat-sen University; Guangzhou PR China
| | - Qiang Tan
- Foshan Institute of Occupational Disease Prevention and Control; Foshan PR China
| | - Jiansong Chen
- School of Public Health; Guangzhou Medical University; Guangzhou PR China
| | - Jiaxian Liu
- Department of Environmental and Occupational Health; Dongguan Key Laboratory of Environmental Medicine; School of Public Health; Guangdong Medical University; Dongguan PR China
| | - Fei Zou
- Department of Occupational Health and Occupational Medicine; Guangdong Provincial Key Laboratory of Tropical Disease Research; School of Public Health and Tropical Medicine; Southern Medical University; Guangzhou PR China
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88
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Yang YQ, Li J, Yuan HF. Epidemiology and risk factors of retinoblastoma in Chongqing area. Int J Ophthalmol 2016; 9:984-8. [PMID: 27500105 DOI: 10.18240/ijo.2016.07.08] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 10/22/2015] [Indexed: 02/02/2023] Open
Abstract
AIM To investigate the risk factors of retinoblastoma in Chongqing and offer the bases for scientific measures. METHODS One hundred and thirty-three retinoblastoma patients were taken as case group, and 133 children were taken as control group in 1:1 ratio. The relevant factors were collected from a questionnaire survey which was made by our research group. First, Chi-square and t-test were used to discuss the various factors, and then the logistic regression analysis was made by statistics software SPSS17.0 based on the result of 266 people. RESULTS Single factor analysis results showed the differences between the two groups were statistically significant (P<0.05) in 17 factors which were education level of their parents, occupation of their parents, exposure to harmful chemicals of their parents 6mo before pregnancy, the history of pelvic inflammatory disease of mother before pregnancy, childbearing history of their parents, pregnant age of their parents, the medication history of father 6 mo before pregnancy, living place of their parents, the pollution living place of mother, hobbies of their parents. Multivariate analysis showed that the living place of parents, mother who feed pets before pregnancy, and exposure to harmful chemicals of father before pregnancy were the independent risk factors of retinoblastoma (P<0.05). CONCLUSION The living place of parents, mother who feed pets before pregnancy, exposure to harmful chemicals of father before pregnancy were the risk factors of retinoblastoma which affects the occurrence of retinoblastoma in a certain extent.
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Affiliation(s)
- Yu-Qiong Yang
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Jia Li
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China
| | - Hong-Feng Yuan
- Department of Ophthalmology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China
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89
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Yang J, Li D, Fu J, Huang F, Wei Q. TiO2-CuCNFs based laccase biosensor for enhanced electrocatalysis in hydroquinone detection. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.01.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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90
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Yu MH, Lee SO. Hydroquinone stimulates cell invasion through activator protein-1-dependent induction of MMP-9 in HepG2 human hepatoma cells. Food Chem Toxicol 2016; 89:120-5. [PMID: 26807887 DOI: 10.1016/j.fct.2016.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 01/05/2016] [Accepted: 01/21/2016] [Indexed: 02/06/2023]
Abstract
Hydroquinone (HQ) is a well-known environmental carcinogen and exposure of humans to HQ can also occur through plant foods, cosmetics, and tobacco products. Although liver is a major organ metabolizing HQ and susceptible to its toxicity, role of HQ in metastatic progression of human hepatocellular carcinoma (HCC) remains unclear. In this study, we examined the effect of HQ on the invasion of HCC cells and its underlying molecular mechanisms. HQ strongly induced matrix metalloproteinase-9 (MMP-9) expression and secretion in HepG2 human hepatoma cells, which were well correlated with increased cell invasion. Mechanistic studies further demonstrated that HQ induced transcriptional activity of MMP-9 gene by activating activator protein-1 (AP-1), the well-known key element mediating MMP-9 gene expression, via MAP kinase (MAPK) signaling pathways. These results suggest that HQ may promote metastatic progression of HCC, although data on in vivo hydroquinone exposure and risk for HCC are contradictory.
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Affiliation(s)
- Mi-Hee Yu
- Department of Food Science and Technology, Keimyung University, Daegu 42601, Republic of Korea
| | - Syng-Ook Lee
- Department of Food Science and Technology, Keimyung University, Daegu 42601, Republic of Korea; CK-1, Food and Biotechnology Expert Training Program, Keimyung University, Daegu 42601, Republic of Korea.
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91
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Dang Y, Zhai Y, Yang L, Peng Z, Cheng N, Zhou Y. Selective electrochemical detection of hydroquinone and catechol at a one-step synthesised pine needle-like nano-CePO4 modified carbon paste electrode. RSC Adv 2016. [DOI: 10.1039/c6ra18601g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A pine needle-like nano-CePO4 modified carbon paste electrode was successfully constructed for simultaneous detection of hydroquinone and catechol sensitively and selectively.
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Affiliation(s)
- Yuan Dang
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Yanyan Zhai
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Lehui Yang
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Zhenli Peng
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Nan Cheng
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
| | - Yuanzhen Zhou
- School of Science
- Xi'an University of Architecture and Technology
- Xi'an
- China
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92
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Zhang D, Shi W, Cheng Q, Li X, Xu A. Dioxygen-mediated oxidation of hydroquinone with cobalt ions in a bicarbonate aqueous solution for the production of active radicals. NEW J CHEM 2016. [DOI: 10.1039/c6nj00906a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cobalt(ii) ions exhibit high efficiency for hydroquinone oxidation in HCO3− solution with O2 to produce hydroxyl radicals.
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Affiliation(s)
- Dajie Zhang
- School of Environmental Engineering
- Wuhan Textile University
- Wuhan 430200
- China
| | - Wei Shi
- School of Environmental Engineering
- Wuhan Textile University
- Wuhan 430200
- China
| | - Qiang Cheng
- School of Environmental Engineering
- Wuhan Textile University
- Wuhan 430200
- China
| | - Xiaoxia Li
- School of Chemistry and Chemical Engineering
- Wuhan Textile University
- Wuhan 430200
- China
| | - Aihua Xu
- School of Environmental Engineering
- Wuhan Textile University
- Wuhan 430200
- China
- Engineering Research Center for Clean Production of Dyeing and Printing
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93
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Jung DH, Kim EJ, Jung E, Kazlauskas RJ, Choi KY, Kim BG. Production ofp-hydroxybenzoic acid fromp-coumaric acid byBurkholderia glumaeBGR1. Biotechnol Bioeng 2015; 113:1493-503. [DOI: 10.1002/bit.25908] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/10/2015] [Accepted: 12/14/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Da-Hye Jung
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-7442 South Korea
| | - Eun-Jung Kim
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-7442 South Korea
| | - Eunok Jung
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-7442 South Korea
| | - Romas J Kazlauskas
- Department of Biochemistry; Molecular Biology & Biophysics and The Biotechnology Institute; University of Minnesota; Saint Paul Minnesota 55108
| | - Kwon-Young Choi
- Department of Environmental Engineering; College of Engineering; Ajou University; Suwon 443-749 Kyeonggi-do South Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering; Seoul National University; Seoul 151-7442 South Korea
- Institute of Bioengineering; Seoul National University; Seoul 151-742 South Korea
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94
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Jhang JF, Hsu YH, Kuo HC. Possible pathophysiology of ketamine-related cystitis and associated treatment strategies. Int J Urol 2015; 22:816-25. [PMID: 26087832 DOI: 10.1111/iju.12841] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/24/2015] [Indexed: 12/21/2022]
Abstract
Ketamine-related cystitis is characterized by ketamine-induced urinary frequency and bladder pain. It has become a serious problem in recent years. The most typical grossly pathological bladder change with ketamine related cystitis is a contracted bladder and bladder wall thickening. Ulcerative cystitis with an easily bleeding mucosa is a common cystoscopic finding. Microscopically, the urothelium is denuded and is infiltrated by inflammatory cells, such as mast cells and eosinophils. The pathogenesis of ketamine-related cystitis is complicated and involves many different pathways. Past evidence suggests a direct toxic effect, bladder barrier dysfunction, neurogenic inflammation, immunoglobulin-E-mediated inflammation, overexpression of carcinogenic genes, abnormal apoptosis and nitric oxide synthase-mediated inflammation contribute to the pathogenesis of ketamine-related cystitis. The first step to managing ketamine-related cystitis is always asking patients to cease ketamine. Medical treatment might be helpful in patients with early ketamine-related cystitis and abstinence from ketamine. Several case studies showed that the intravesical installation of hyaluronic acid and intravesical injection of botulinum toxin type A were effective for symptom relief in selected patients. For patients with irreversible pathological change, such as contracted bladder, augmentation enterocystoplasty might be the only solution to increase bladder capacity and relieve intractable bladder pain.
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Affiliation(s)
- Jia-Fong Jhang
- Department of Urology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan
| | - Yung-Hsiang Hsu
- Department of Pathology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan
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95
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Umar A, Al-Hajry A, Ahmad R, Ansari SG, Al-Assiri MS, Algarni H. Fabrication and characterization of a highly sensitive hydroquinone chemical sensor based on iron-doped ZnO nanorods. Dalton Trans 2015; 44:21081-7. [DOI: 10.1039/c5dt03364k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the development of a simple and highly sensitive hydroquinone (HQ) chemical sensor based on an electrochemically activated iron-doped zinc oxide nanorod modified screen-printed electrode.
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Affiliation(s)
- Ahmad Umar
- Promising Centre for Sensors and Electronic Devices
- Najran University
- Najran
- Kingdom of Saudi Arabia
- Department of Chemistry
| | - Ali Al-Hajry
- Promising Centre for Sensors and Electronic Devices
- Najran University
- Najran
- Kingdom of Saudi Arabia
- Department of Physics
| | - Rafiq Ahmad
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing Research
- Chonbuk National University
- Jeonju 561-756
- Republic of Korea
| | - S. G. Ansari
- Centre for Interdisciplinary Research in Basic Sciences
- Jamia Millia Islamia
- New Delhi-110025
- India
| | - Mohammed Sultan Al-Assiri
- Promising Centre for Sensors and Electronic Devices
- Najran University
- Najran
- Kingdom of Saudi Arabia
- Department of Physics
| | - Hamed Algarni
- Department of Physics
- Faculty of Science
- King Khalid University
- Abha
- Kingdom of Saudi Arabia
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96
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Mancini S, Abicht HK, Gonskikh Y, Solioz M. A copper-induced quinone degradation pathway provides protection against combined copper/quinone stress inLactococcus lactis IL1403. Mol Microbiol 2014; 95:645-59. [DOI: 10.1111/mmi.12889] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2014] [Indexed: 01/26/2023]
Affiliation(s)
- Stefano Mancini
- Department Clinical Research; University of Bern; Murtenstrasse 35 3010 Bern Switzerland
| | - Helge K. Abicht
- Department Clinical Research; University of Bern; Murtenstrasse 35 3010 Bern Switzerland
| | - Yulia Gonskikh
- Department Clinical Research; University of Bern; Murtenstrasse 35 3010 Bern Switzerland
- Department of Plant Physiology and Biotechnology; Tomsk State University; Prospect Lenina 36 634050 Tomsk Russia
| | - Marc Solioz
- Department Clinical Research; University of Bern; Murtenstrasse 35 3010 Bern Switzerland
- Department of Plant Physiology and Biotechnology; Tomsk State University; Prospect Lenina 36 634050 Tomsk Russia
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97
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DNA damage induced by hydroquinone can be prevented by fungal detoxification. Toxicol Rep 2014; 1:1096-1105. [PMID: 28962321 PMCID: PMC5598254 DOI: 10.1016/j.toxrep.2014.10.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 10/25/2014] [Accepted: 10/28/2014] [Indexed: 01/03/2023] Open
Abstract
Hydroquinone is a benzene metabolite with a wide range of industrial applications, which has potential for widespread human exposure; however, the toxicity of hydroquinone on human cells remains unclear. The aims of this study are to investigate the cytotoxicity and genotoxicity of hydroquinone in human primary fibroblasts and human colon cancer cells (HCT116). Low doses of hydroquinone (227-454 μM) reduce the viability of fibroblasts and HCT116 cells, determined by resazurin conversion, and induce genotoxic damage (DNA strand breaks), as assessed by alkaline comet assays. Bioremediation may provide an excellent alternative to promote the degradation of hydroquinone, however few microorganisms are known that efficiently degrade it. Here we also investigate the capacity of a halotolerant fungus, Penicillium chrysogenum var. halophenolicum, to remove hydroquinone toxicity under hypersaline condition. The fungus is able to tolerate high concentrations of hydroquinone and can reverse these noxious effects via degradation of hydroquinone to completion, even when the initial concentration of this compound is as high as 7265 μM. Our findings reveal that P. chrysogenum var. halophenolicum efficiently degrade hydroquinone under hypersaline conditions, placing this fungus among the best candidates for the detoxification of habitats contaminated with this aromatic compound.
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