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Mondal I, Groves M, Driver EM, Vittori W, Halden RU. Carcinogenic formaldehyde in U.S. residential buildings: Mass inventories, human health impacts, and associated healthcare costs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173640. [PMID: 38825200 DOI: 10.1016/j.scitotenv.2024.173640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/04/2024]
Abstract
Formaldehyde, a human carcinogen, is formulated into building materials in the U.S. and worldwide. We used literature information and mass balances to obtain order-of-magnitude estimates of formaldehyde inventories in U.S. residential buildings as well as associated exposures, excess morbidity, and healthcare costs along with other economic ramifications. Use of formaldehyde in building materials dates to the 1940s and continues today unabated, despite its international classification in 2004 as a human carcinogen. Global production of formaldehyde was about 32 million metric tons (MMT) in 2006. In the U.S., 5.7 ± 0.05 to 7.4 ± 0.125 MMT of formaldehyde were produced annually from 2006 to 2022, with 65 ± 5 % of this mass (3.7 ± 0.03 to 4.8 ± 0.08 MMT) entering building materials. For a typical U.S. residential building constructed in 2022, we determined an average total mass of formaldehyde containing chemicals of 48.2 ± 10.1 kg, equivalent to 207 ± 40 g of neat formaldehyde per housing unit. When extrapolated to the entire U.S. housing stock, this equates to 29,800 ± 5760 metric tons of neat formaldehyde. If the health threshold in indoor air of 0.1 mg/m3 is never surpassed in a residential building, safe venting of embedded formaldehyde would take years. Using reported indoor air exceedances, up to 645 ± 33 excess cancer cases may occur U.S. nationwide annually generating up to US$65 M in cancer treatment costs alone, not counting ~16,000 ± 1000 disability adjusted life-years. Other documents showed health effects of formaldehyde exist, but could not be quantified reliably, including sick building syndrome outcomes such as headache, asthma, and various respiratory illnesses. Opportunities to improve indoor air exposure assessments are discussed with special emphasis on monitoring of building wastewater. Safer alternatives to formaldehyde in building products exist and are recommended for future use.
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Affiliation(s)
- Indrayudh Mondal
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Building B, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85281-8101, United States of America; School of Sustainable Engineering and the Built Environment, 660 S College Ave, Tempe, AZ 85281, United States of America
| | - Megan Groves
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Building B, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85281-8101, United States of America
| | - Erin M Driver
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Building B, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85281-8101, United States of America
| | - Wendy Vittori
- Health Product Declaration Collaborative, 401 Edgewater Place, Suite 600, Wakefield, MA 01880, United States of America
| | - Rolf U Halden
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Building B, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85281-8101, United States of America.
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Jiang H, Bu Y, Liu G, Zhang W, Cheng XW. Comparative study of polycarboxylic acids for sustainable crosslinking of silk fabrics: Evaluating flame retardancy and physical performances. Int J Biol Macromol 2024; 273:133129. [PMID: 38885864 DOI: 10.1016/j.ijbiomac.2024.133129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024]
Abstract
For protein fibers, polycarboxylic acids represent a green strategy to enhance durability without using formaldehyde. This study evaluated the physical and flame retardant properties of silk fabrics treated with three formaldehyde-free crosslinkers: citric acid (CA), 1,2,3,4-butanetetracarboxylic acid (BTCA), and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA). Results showed that these acids bond with silk protein through esterification and amidation, improving washing durability. Particularly, PBTCA integrates phosphorus into silk, boosting flame retardancy. While BTCA led to the highest weight gain and improved wrinkle recovery, it negatively impacted the tensile strength and softness of silk fabrics. Conversely, PBTCA adeptly balanced enhanced wrinkle resistance with minimal effects on tensile strength and softness, and least affected the silk fabrics' whiteness, thus preserving its aesthetic appeal. All crosslinkers improved flame retardancy, but PBTCA displayed superior performance, achieving a limiting oxygen index of 32.4 % at an 80 g/L concentration. In vertical burning tests, PBTCA treated silk fabrics showed reductions in damage length and demonstrated self-extinguishing properties, qualifying them for a higher flame retardant grade. Phosphorus in PBTCA promotes char formation during combustion, essential for effective flame retardation and smoke reduction. This research highlights the exceptional potential of silk treated with PBTCA, showcasing its suitability for demanding applications.
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Affiliation(s)
- Huiyu Jiang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies and School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, Hubei, China; Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Yanlong Bu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies and School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, Hubei, China; China National Textile and Apparel Council Key Laboratory of Flame Retardancy Finishing of Textile Materials, Soochow University, Suzhou 215123, China
| | - Geao Liu
- Toyowako Purification Materials (Jiangsu) Co., Ltd., Changzhou 213000, China
| | - Wen Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies and School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, Hubei, China; China National Textile and Apparel Council Key Laboratory of Flame Retardancy Finishing of Textile Materials, Soochow University, Suzhou 215123, China; Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China.
| | - Xian-Wei Cheng
- China National Textile and Apparel Council Key Laboratory of Flame Retardancy Finishing of Textile Materials, Soochow University, Suzhou 215123, China.
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Benedict B, Kristensen SM, Duxin JP. What are the DNA lesions underlying formaldehyde toxicity? DNA Repair (Amst) 2024; 138:103667. [PMID: 38554505 DOI: 10.1016/j.dnarep.2024.103667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 04/01/2024]
Abstract
Formaldehyde is a highly reactive organic compound. Humans can be exposed to exogenous sources of formaldehyde, but formaldehyde is also produced endogenously as a byproduct of cellular metabolism. Because formaldehyde can react with DNA, it is considered a major endogenous source of DNA damage. However, the nature of the lesions underlying formaldehyde toxicity in cells remains vastly unknown. Here, we review the current knowledge of the different types of nucleic acid lesions that are induced by formaldehyde and describe the repair pathways known to counteract formaldehyde toxicity. Taking this knowledge together, we discuss and speculate on the predominant lesions generated by formaldehyde, which underly its natural toxicity.
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Affiliation(s)
- Bente Benedict
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark
| | - Stella Munkholm Kristensen
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark
| | - Julien P Duxin
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen DK-2200, Denmark.
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K Y, S SK, Vyas JMV, J V. Genotoxicity of Formaldehyde: Effect of Whole-Body Exposure on Polychromatic Erythrocyte/Normochromatic Erythrocyte Ratio in Male and Female Rats. Cureus 2024; 16:e62103. [PMID: 38993402 PMCID: PMC11238148 DOI: 10.7759/cureus.62103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 06/08/2024] [Indexed: 07/13/2024] Open
Abstract
Every day, millions of individuals are exposed to formaldehyde (FA) due to its extensive presence and versatile use. Many in vivoand in vitroexperiments revealed that the mechanism of genotoxicity induced by FA exposure is complex yet toxicity upon whole-body exposure (WBE) to FA is less. As teachers, students, and skilled assistants in the health care sectors are also extensively exposed to FA vapors, it might result in genotoxicity. However, the effects of subchronic exposure to FA at low concentrations are not clear. Hence, analysis of the micronucleus (MN) was necessary to study the genetic toxicity triggered by FA in the bone marrow of male and female experimental rats. The present study is a gender- and duration of exposure-based assessment of the geno- and cytotoxicity in bone marrow cells of Wistar rats to study the effect of WBE to 10% FA on polychromatic erythrocytes/normochromatic erythrocytes (PCE/NCE) ratio and micronucleated polychromatic erythrocytes (MnPCE) in experimental rats. The obtained result clearly showed that WBE to FA for 60 days at concentrations between 1 and 1.1 ppm (0, 1, and 1.5 h) induced genotoxic effects in both male and female rats by altering the MnPCE% and significantly increasing the ratio of PCE/NCE (1.07 ± 0.23, 1.20 ± 0.20, 1.22 ± 0.14). The PCE/NCE ratio in male rats was lesser (0.98, 1.12, and 1.18) when compared with female rats (1.17, 1.29, and 1.26) with 0, 1, and 1.5 h exposure, respectively. Thus, the genetic/cellular sensitivity to FA differs among the sexes and also depends on the exposure duration.
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Affiliation(s)
- Yugesh K
- Anatomy, Sri Ramachandra Medical College & Research Institute, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, IND
| | - Senthil Kumar S
- Anatomy, Sri Ramachandra Medical College & Research Institute, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, IND
| | - Janani Maheshwari V Vyas
- Anatomy, Sri Ramachandra Medical College & Research Institute, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, IND
| | - Vijayalakshmi J
- Human Genetics, Sri Ramachandra Medical College & Research Institute, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, IND
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Foroughi P, Golbabaei F, Sadeghi-Yarandi M, Yaseri M, Fooladi M, Kalantary S. Occupational exposure, carcinogenic and non-carcinogenic risk assessment of formaldehyde in the pathology labs of hospitals in Iran. Sci Rep 2024; 14:12006. [PMID: 38796506 PMCID: PMC11127932 DOI: 10.1038/s41598-024-62133-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 05/14/2024] [Indexed: 05/28/2024] Open
Abstract
Formaldehyde, a known carcinogenic compound, is commonly used in various medical settings. The objective of this study was to assess the carcinogenic and non-carcinogenic risks associated with occupational exposure to formaldehyde. This study was conducted in the pathology labs of four hospitals in Tehran. Cancer and non-cancer risks were evaluated using the quantitative risk assessment method proposed by the United States environmental protection agency (USEPA), along with its provided database known as the integrated risk information system (IRIS). Respiratory symptoms were assessed using the American thoracic society (ATS) questionnaire. The results indicated that 91.23% of exposure levels in occupational groups exceed the NIOSH standard of 0.016 ppm. Regarding carcinogenic risk, 41.03% of all the studied subjects were in the definite carcinogenic risk range (LCR > 10-4), 23.08% were in the possible carcinogenic risk range (10-5 < LCR < 10-4), and 35.90% were in the negligible risk range (LCR < 10-6). The highest index of occupational carcinogenesis was observed in the group of lab technicians with a risk number of 3.7 × 10-4, followed by pathologists with a risk number of 1.7 × 10-4. Furthermore, 23.08% of the studied subjects were within the permitted health risk range (HQ < 1.0), while 76.92% were within the unhealthy risk range (HQ > 1.0). Overall, the findings revealed significantly higher carcinogenic and non-carcinogenic risks among lab technicians and pathologists. Therefore, it is imperative to implement control measures across various hospital departments to mitigate occupational formaldehyde exposure levels proactively. These findings can be valuable for policymakers in the health sector, aiding in the elimination or reduction of airborne formaldehyde exposure in work environments.
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Affiliation(s)
- Parvin Foroughi
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Golbabaei
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Sadeghi-Yarandi
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahta Fooladi
- Department of Occupational Health and Environment, Iran Mineral Processing Research Center, Tehran, Iran
| | - Saba Kalantary
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Todman H, Helliwell R, King L, Blanchard A, Gray-Hammerton CJ, Hooton SP, Baker M, Margerison J, Wilson P, Dodd CER, Morris C, Raman S, Hudson C, Kreft JU, Hobman JL, Kypraios T, Stekel DJ. Modelling the impact of wastewater flows and management practices on antimicrobial resistance in dairy farms. NPJ ANTIMICROBIALS AND RESISTANCE 2024; 2:13. [PMID: 38757121 PMCID: PMC11093733 DOI: 10.1038/s44259-024-00029-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/15/2024] [Indexed: 05/18/2024]
Abstract
Dairy slurry is a major source of environmental contamination with antimicrobial resistant genes and bacteria. We developed mathematical models and conducted on-farm research to explore the impact of wastewater flows and management practices on antimicrobial resistance (AMR) in slurry. Temporal fluctuations in cephalosporin-resistant Escherichia coli were observed and attributed to farm activities, specifically the disposal of spent copper and zinc footbath into the slurry system. Our model revealed that resistance should be more frequently observed with relevant determinants encoded chromosomally rather than on plasmids, which was supported by reanalysis of sequenced genomes from the farm. Additionally, lower resistance levels were predicted in conditions with lower growth and higher death rates. The use of muck heap effluent for washing dirty channels did not explain the fluctuations in cephalosporin resistance. These results highlight farm-specific opportunities to reduce AMR pollution, beyond antibiotic use reduction, including careful disposal or recycling of waste antimicrobial metals.
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Affiliation(s)
- Henry Todman
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Richard Helliwell
- School of Geography, University of Nottingham, University Park Campus, Nottingham, NG7 2RD UK
- School of Sociology and Social Policy, University of Nottingham, University Park Campus, Nottingham, NG7 2RD UK
- Ruralis, University Centre Dragvoll, N—7491 Trondheim, Norway
| | - Liz King
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Adam Blanchard
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD UK
| | - Charlotte J. Gray-Hammerton
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
- Ineos Oxford Institute for Antimicrobial Research, Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford, OX1 3RE UK
| | - Steven P. Hooton
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
- Department of Genetics and Genome Biology, University of Leicester, University Road, Leicester, LE1 7RH UK
| | - Michelle Baker
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD UK
| | - Jean Margerison
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Paul Wilson
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Christine E. R. Dodd
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Carol Morris
- School of Geography, University of Nottingham, University Park Campus, Nottingham, NG7 2RD UK
| | - Sujatha Raman
- Ruralis, University Centre Dragvoll, N—7491 Trondheim, Norway
- Australian National Centre for Public Awareness of Science, Australian National University, Canberra, Australia
| | - Chris Hudson
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire LE12 5RD UK
| | - Jan-Ulrich Kreft
- Institute of Microbiology and Infection & School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Jon L. Hobman
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
| | - Theodore Kypraios
- School of Mathematical Sciences, University of Nottingham, University Park Campus, Nottingham, NG7 2RD UK
| | - Dov J. Stekel
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, College Road, Loughborough, Leicestershire LE12 5RD UK
- Department of Mathematics and Applied Mathematics, University of Johannesburg, Auckland Park Kingsway Campus, Rossmore, Johannesburg South Africa
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7
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Wood JP. Review of techniques for the in-situ sterilization of soil contaminated with Bacillus anthracis spores or other pathogens. Res Microbiol 2024; 175:104175. [PMID: 38141796 PMCID: PMC11192063 DOI: 10.1016/j.resmic.2023.104175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 12/25/2023]
Abstract
This review summarizes the literature on efficacy of techniques to sterilize soil. Soil may need to be sterilized if contaminated with pathogens such as Bacillus anthracis. Sterilizing soil in-situ minimizes spread of the bio-contaminant. Soil is difficult to sterilize, with efficacy generally diminishing with depth. Methyl bromide, formaldehyde, and glutaraldehyde are the only soil treatment options that have been demonstrated at full-scale to effectively inactivate Bacillus spores. Soil sterilization modalities with high efficacy at bench-scale include wet and dry heat, metam sodium, chlorine dioxide gas, and activated sodium persulfate. Simple oxidants such as chlorine bleach are ineffective in sterilizing soil.
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Affiliation(s)
- Joseph P Wood
- United States Environmental Protection Agency, Office of Research and Development, Homeland Security Research Program, 109 T.W. Alexander Dr., P.O. Box 12055, Research Triangle Park, NC, USA.
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Werner J, Grześkowiak T, Zgoła-Grześkowiak A, Frankowski R, Płatkiewicz J. Hybrid materials based on deep eutectic solvents for the preconcentration of formaldehyde by SPME in coffee beverages. Talanta 2024; 268:125309. [PMID: 37871466 DOI: 10.1016/j.talanta.2023.125309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/20/2023] [Accepted: 10/13/2023] [Indexed: 10/25/2023]
Abstract
Coffee is one of the most widely consumed beverages. It can be prepared from green or roasted beans or from instant coffee. Unfortunately, in addition to the aroma obtained in the coffee roasting process, among others, formaldehyde can be produced. In this study, thin-film solid-phase microextraction was used to preconcentrate trace amounts of formaldehyde in different types of coffee with different roasting levels. For this purpose, 18 hybrid materials based on deep eutectic solvents were synthesized and tested as sorbents in thin-film solid-phase microextraction. The coffee samples were brewed, and then formaldehyde present in them was derivatized using the Nash reagent. The sample preparation procedure was optimized for selected DES-based sorbent using a central composite design method and validated. Formaldehyde was determined in almost all samples of second-crack coffee (roasted at 240 °C) at 0.17-0.75 ng mL-1 and in darker-colored instant coffees at 0.18-0.54 ng mL-1.
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Affiliation(s)
- Justyna Werner
- Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland.
| | - Tomasz Grześkowiak
- Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland
| | - Agnieszka Zgoła-Grześkowiak
- Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland
| | - Robert Frankowski
- Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland
| | - Julia Płatkiewicz
- Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland
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Yuan X, Chen R, Luo G, Sun P, Song X, Ma J, Sun R, Yu T, Jiang Z. Role and mechanism of miR-871-3p/Megf8 in regulating formaldehyde-induced cardiomyocyte inflammation and congenital heart disease. Int Immunopharmacol 2024; 126:111297. [PMID: 38039718 DOI: 10.1016/j.intimp.2023.111297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/02/2023] [Accepted: 11/24/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE AND DESIGN We aimed to investigate the molecular mechanism underlying formaldehyde (FA)-induced congenital heart disease (CHD) using in vitro and in vivo models. MATERIALS AND SUBJECTS Neonatal rat heart tissues and H9C2 cells were used for in vitro studies, while FA-exposed new-born rats were used for in vivo studies. TREATMENT H9C2 cells were exposed to FA concentrations of 0, 50, 100 and 150 μM/mL for 24 h. METHODS Whole transcriptome gene sequencing identified differentially expressed miRNAs in neonatal rat heart tissues, while Real-time quantitative PCR (RT-qPCR) assessed miR-871-3p and Megf8 expression. RNA pull-down and dual-luciferase reporter assays determined miR-871-3p and Megf8 relationships. Inflammatory cytokine expression was assessed by western blotting. A FA-induced CHD model was used to validate miR-871-3p regulatory effects in vivo. RESULTS We identified 89 differentially expressed miRNAs, with 28 up-regulated and 61 down-regulated (fold change ≥ 2.0, P < 0.05). Inflammation (interleukin) and signalling pathways were found to control FA-induced cardiac dysplasia. miR-871-3p was upregulated in FA-exposed heart tissues, modulated inflammation, and directly targeted Megf8. In vivo experiments showed miR-871-3p knockdown inhibited FA-induced inflammation and CHD. CONCLUSION We demonstrated miR-871-3p's role in FA-induced CHD by targeting Megf8, providing potential targets for CHD intervention and improved diagnosis and treatment strategies.
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Affiliation(s)
- Xiaoli Yuan
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China
| | - Rui Chen
- Heart Center, Women and Children's Hospital, Qingdao University, Qingdao 266034, Shandong Province, People's Republic of China
| | - Gang Luo
- Heart Center, Women and Children's Hospital, Qingdao University, Qingdao 266034, Shandong Province, People's Republic of China
| | - Pin Sun
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China
| | - Xiaoxia Song
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China
| | - Jianmin Ma
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China
| | - Ruicong Sun
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China; Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, No. 38 Dengzhou Road, Qingdao 266021, Shandong Province, People's Republic of China.
| | - Zhirong Jiang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao 266100, Shandong Province, People's Republic of China.
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10
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Zhao S, Cordes J, Caban KM, Götz MJ, Mackens-Kiani T, Veltri AJ, Sinha NK, Weickert P, Kaya S, Hewitt G, Nedialkova DD, Fröhlich T, Beckmann R, Buskirk AR, Green R, Stingele J. RNF14-dependent atypical ubiquitylation promotes translation-coupled resolution of RNA-protein crosslinks. Mol Cell 2023; 83:4290-4303.e9. [PMID: 37951216 PMCID: PMC10783637 DOI: 10.1016/j.molcel.2023.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/17/2023] [Accepted: 10/13/2023] [Indexed: 11/13/2023]
Abstract
Reactive aldehydes are abundant endogenous metabolites that challenge homeostasis by crosslinking cellular macromolecules. Aldehyde-induced DNA damage requires repair to prevent cancer and premature aging, but it is unknown whether cells also possess mechanisms that resolve aldehyde-induced RNA lesions. Here, we establish photoactivatable ribonucleoside-enhanced crosslinking (PAR-CL) as a model system to study RNA crosslinking damage in the absence of confounding DNA damage in human cells. We find that such RNA damage causes translation stress by stalling elongating ribosomes, which leads to collisions with trailing ribosomes and activation of multiple stress response pathways. Moreover, we discovered a translation-coupled quality control mechanism that resolves covalent RNA-protein crosslinks. Collisions between translating ribosomes and crosslinked mRNA-binding proteins trigger their modification with atypical K6- and K48-linked ubiquitin chains. Ubiquitylation requires the E3 ligase RNF14 and leads to proteasomal degradation of the protein adduct. Our findings identify RNA lesion-induced translational stress as a central component of crosslinking damage.
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Affiliation(s)
- Shubo Zhao
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jacqueline Cordes
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Karolina M Caban
- Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Maximilian J Götz
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Timur Mackens-Kiani
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Anthony J Veltri
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Niladri K Sinha
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Pedro Weickert
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Selay Kaya
- Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Graeme Hewitt
- King's College London School of Cancer & Pharmaceutical Sciences, London, UK
| | - Danny D Nedialkova
- Max Planck Institute of Biochemistry, Martinsried, Germany; Technical University of Munich, TUM School of Natural Sciences, Department of Bioscience, Garching, Germany
| | - Thomas Fröhlich
- Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Roland Beckmann
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Allen R Buskirk
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Rachel Green
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, USA; Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Julian Stingele
- Department of Biochemistry, Ludwig-Maximilians-Universität München, Munich, Germany; Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany.
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11
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Suryo Rahmanto A, Blum CJ, Scalera C, Heidelberger JB, Mesitov M, Horn-Ghetko D, Gräf JF, Mikicic I, Hobrecht R, Orekhova A, Ostermaier M, Ebersberger S, Möckel MM, Krapoth N, Da Silva Fernandes N, Mizi A, Zhu Y, Chen JX, Choudhary C, Papantonis A, Ulrich HD, Schulman BA, König J, Beli P. K6-linked ubiquitylation marks formaldehyde-induced RNA-protein crosslinks for resolution. Mol Cell 2023; 83:4272-4289.e10. [PMID: 37951215 DOI: 10.1016/j.molcel.2023.10.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/17/2023] [Accepted: 10/13/2023] [Indexed: 11/13/2023]
Abstract
Reactive aldehydes are produced by normal cellular metabolism or after alcohol consumption, and they accumulate in human tissues if aldehyde clearance mechanisms are impaired. Their toxicity has been attributed to the damage they cause to genomic DNA and the subsequent inhibition of transcription and replication. However, whether interference with other cellular processes contributes to aldehyde toxicity has not been investigated. We demonstrate that formaldehyde induces RNA-protein crosslinks (RPCs) that stall the ribosome and inhibit translation in human cells. RPCs in the messenger RNA (mRNA) are recognized by the translating ribosomes, marked by atypical K6-linked ubiquitylation catalyzed by the RING-in-between-RING (RBR) E3 ligase RNF14, and subsequently resolved by the ubiquitin- and ATP-dependent unfoldase VCP. Our findings uncover an evolutionary conserved formaldehyde-induced stress response pathway that protects cells against RPC accumulation in the cytoplasm, and they suggest that RPCs contribute to the cellular and tissue toxicity of reactive aldehydes.
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Affiliation(s)
- Aldwin Suryo Rahmanto
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany; Institute of Developmental Biology and Neurobiology (IDN), Johannes Gutenberg-Universität, 55128 Mainz, Germany
| | | | | | | | | | - Daniel Horn-Ghetko
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Justus F Gräf
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany; Department of Proteomics, The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Ivan Mikicic
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | | | - Anna Orekhova
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | | | | | | | - Nils Krapoth
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | | | - Athanasia Mizi
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Yajie Zhu
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Jia-Xuan Chen
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | - Chunaram Choudhary
- Department of Proteomics, The Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Argyris Papantonis
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Helle D Ulrich
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | - Brenda A Schulman
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Julian König
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany
| | - Petra Beli
- Institute of Molecular Biology (IMB), 55128 Mainz, Germany; Institute of Developmental Biology and Neurobiology (IDN), Johannes Gutenberg-Universität, 55128 Mainz, Germany.
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12
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Kim ST, Shao K, Oleschkewitz C, Hamilton R. Margin of exposure to free formaldehyde in personal care products containing formaldehyde-donor preservatives: Evidence for consumer safety. Regul Toxicol Pharmacol 2023; 145:105519. [PMID: 37866701 DOI: 10.1016/j.yrtph.2023.105519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/29/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Formaldehyde has been classified as carcinogenic to humans by International Agency for Research on Cancer and found in personal care (PC) products containing formaldehyde-donor (FD) preservatives. However, the cancer risk associated with the use of FD-containing PC products has not been well established. Our study provides the quantitative cancer risk assessment of formaldehyde in FD-containing PC products. The carbon-13 nuclear magnetic resonance (13C-NMR) spectroscopy was used in this risk assessment to provide reliable exposure information to formaldehyde in PC products and aqueous solutions containing sodium hydroxymethylglycinate. The risk assessment was conducted using the margin of exposure (MOE) approach with benchmark doses (BMDs) for 10% effect. For hemolymphoreticular neoplasias in male rats, a BMD of 28.03 mg/kg/day and a BMD lower confidence limit (BMDL) of 2.52 mg/kg/day were calculated from available long-term animal experiments. The worst-case consumer exposure to formaldehyde from FD-containing PC products was 0.007 μg/kg/day. Comparing the consumer exposure with BMDL, the resulting MOE was 360,000 for the worst-case scenario. The consumer exposure to formaldehyde (0.007 μg/kg/day) from using FD-containing PC products represents less than 1.0 × 10-6 % of background level endogenous formaldehyde (878-1310 mg/kg/day). The cancer risk from formaldehyde to consumers using FD-containing PC products is negligible.
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Affiliation(s)
- Sang-Tae Kim
- Product Safety & Toxicology, Ashland LLC, Wilmington, DE, USA.
| | - Kan Shao
- Department of Environmental and Occupational Health Indiana University School of Public Health, 1025 E. Seventh Street, Bloomington, IN, USA
| | | | - Ryan Hamilton
- Product Safety & Toxicology, Ashland LLC, Wilmington, DE, USA
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13
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Antipova V, Niedermair JF, Siwetz M, Fellner FA, Löffler S, Manhal S, Ondruschka B, Pietras SM, Poilliot AJ, Pretterklieber ML, Wree A, Hammer N. Undergraduate medical student perceptions and learning outcomes related to anatomy training using Thiel- and ethanol-glycerin-embalmed tissues. ANATOMICAL SCIENCES EDUCATION 2023; 16:1144-1157. [PMID: 37337999 DOI: 10.1002/ase.2306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/11/2023] [Accepted: 05/18/2023] [Indexed: 06/21/2023]
Abstract
Anatomical dissection is known to serve as an integral tool in teaching gross anatomy, including postgraduate training. A variety of embalming techniques exist, resulting in different haptic and optical tissue properties. This study aimed to objectify learning outcomes and medical student perceptions related to the use of two widely used embalming techniques, namely Thiel and ethanol-glycerin embalming. Between 2020 and 2022, first- and second-year medical students enrolled in the course on topographic anatomy participated in this study. Objective structured practical examinations were carried out for the head, neck, thorax, abdomen, pelvis, and extremity regions following regional dissection just before the oral examinations began. Six to ten numbered tags were marked in prosections of each region in Thiel- and ethanol-glycerin-embalmed specimens. Following the examinations, the students were surveyed regarding the suitability of the two embalming techniques with respect to preservation, colorfastness, tissue pliability, and the suitability in preparing for their anatomy examinations. Consistently higher scores were achieved for the thoracic and abdominal regions in ethanol-glycerin-embalmed specimens when compared to Thiel. No benefit was found for Thiel-embalmed upper or lower extremities. Tissues embalmed with ethanol-glycerin were rated higher for preservation and suitability to achieve the learning objectives, tissue pliability was rated higher for Thiel-embalmed tissues. Ethanol-glycerin embalming appears to offer certain advantages for undergraduate students in recognizing visceral structures, which may align with students' ideas on tissue suitability for their learning. Consequently, the benefits reported for Thiel embalming for postgraduate study unlikely reflect its suitability for novices.
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Affiliation(s)
- Veronica Antipova
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Julian F Niedermair
- Central Radiology Institute, Johannes Kepler University Hospital, Linz, Austria
| | - Martin Siwetz
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Franz A Fellner
- Central Radiology Institute, Johannes Kepler University Hospital, Linz, Austria
- Division of Virtual Morphology, Institute of Anatomy and Cell Biology, Johannes Kepler University, Linz, Austria
| | - Sabine Löffler
- Department of Anatomy, University of Leipzig, Leipzig, Germany
| | - Simone Manhal
- Office of the Vice-Rector for Studies and Teaching, Medical University of Graz, Graz, Austria
| | - Benjamin Ondruschka
- Institute of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sandra M Pietras
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | | | - Michael L Pretterklieber
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Andreas Wree
- Institute of Anatomy, Rostock University Medical Center, Rostock, Germany
| | - Niels Hammer
- Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
- Department of Orthopedic and Trauma Surgery, University of Leipzig, Leipzig, Germany
- Division of Biomechatronics, Fraunhofer Institute for Machine Tools and Forming Technology Dresden, Dresden, Germany
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14
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Xu S, Jiang L, Huang X, Ju W, Liang Y, Tao Z, Yang Y, Zhu B, Wei G. Efficient formaldehyde sensor based on PtPd nanoparticles-loaded nafion-modified electrodes. NANOTECHNOLOGY 2023; 35:025704. [PMID: 37804824 DOI: 10.1088/1361-6528/ad0124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/06/2023] [Indexed: 10/09/2023]
Abstract
The noble metal-based electrochemical sensor design for efficient and stable formaldehyde(FA) detection is important ongoing research. In this paper, PtPd/Nafion/GCE is prepared by electrochemical cyclic voltammetry deposition method based on electrodepositing nanostructured platinum (Pt)-palladium (Pd) nanoparticles in Nafion film-coated glassy carbon electrode (GCE). The influence of deposition parameters and chemical composition (atomic ratio of Pt and Pd) on the electrochemical behaviour of PtPd/Nafion/GCE has been investigated. PtPd/Nafion/GCE displays a remarked electrocatalytic activity for the oxidation of FA and exhibits a linear relationship in the range of 10-5000μM, with a detection limit of 3.3μM in 0.1 M H2SO4solution. It is proved that the detection performance of PtPd/Nafion/GCE electrode is valuable for further application with low detection limit, wide linear range, favourable selectivity and high response.
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Affiliation(s)
- Shuting Xu
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Li Jiang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Xiaowei Huang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Wentao Ju
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Yanxia Liang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Zhu Tao
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Yumeng Yang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Benfeng Zhu
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
| | - Guoying Wei
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, People's Republic of China
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15
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Russell S, Bruns N. Encapsulation of Fragrances in Micro- and Nano-Capsules, Polymeric Micelles, and Polymersomes. Macromol Rapid Commun 2023; 44:e2300120. [PMID: 37150605 DOI: 10.1002/marc.202300120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/19/2023] [Indexed: 05/09/2023]
Abstract
Fragrances are ubiquitously and extensively used in everyday life and several industrial applications, including perfumes, textiles, laundry formulations, hygiene household products, and food products. However, the intrinsic volatility of these small organic molecules leaves them particularly susceptible to fast depletion from a product or from the surface they have been applied to. Encapsulation is a very effective method to limit the loss of fragrance during their use and to sustain their release. This review gives an overview of the different materials and techniques used for the encapsulation of fragrances, scents, and aromas, as well as the methods used to characterize the resulting encapsulation systems, with a particular focus on cyclodextrins, polymer microcapsules, inorganic microcapsules, block copolymer micelles, and polymersomes for fragrance encapsulation, sustained release, and controlled release.
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Affiliation(s)
- Sam Russell
- Department of Chemistry, Technical University of Darmstadt, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, G1 1XL, Glasgow, United Kingdom
| | - Nico Bruns
- Department of Chemistry, Technical University of Darmstadt, Peter-Grünberg-Str. 4, 64287, Darmstadt, Germany
- Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, G1 1XL, Glasgow, United Kingdom
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16
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Vijayraghavan S, Saini N. Aldehyde-Associated Mutagenesis─Current State of Knowledge. Chem Res Toxicol 2023. [PMID: 37363863 DOI: 10.1021/acs.chemrestox.3c00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Aldehydes are widespread in the environment, with multiple sources such as food and beverages, industrial effluents, cigarette smoke, and additives. The toxic effects of exposure to several aldehydes have been observed in numerous studies. At the molecular level, aldehydes damage DNA, cross-link DNA and proteins, lead to lipid peroxidation, and are associated with increased disease risk including cancer. People genetically predisposed to aldehyde sensitivity exhibit severe health outcomes. In various diseases such as Fanconi's anemia and Cockayne syndrome, loss of aldehyde-metabolizing pathways in conjunction with defects in DNA repair leads to widespread DNA damage. Importantly, aldehyde-associated mutagenicity is being explored in a growing number of studies, which could offer key insights into how they potentially contribute to tumorigenesis. Here, we review the genotoxic effects of various aldehydes, focusing particularly on the DNA adducts underlying the mutagenicity of environmentally derived aldehydes. We summarize the chemical structures of the aldehydes and their predominant DNA adducts, discuss various methodologies, in vitro and in vivo, commonly used in measuring aldehyde-associated mutagenesis, and highlight some recent studies looking at aldehyde-associated mutation signatures and spectra. We conclude the Review with a discussion on the challenges and future perspectives of investigating aldehyde-associated mutagenesis.
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Affiliation(s)
- Sriram Vijayraghavan
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina 29425, United States
| | - Natalie Saini
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, South Carolina 29425, United States
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17
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Wit N, Gogola E, West JA, Vornbäumen T, Seear RV, Bailey PS, Burgos-Barragan G, Wang M, Krawczyk P, Huberts DH, Gergely F, Matheson NJ, Kaser A, Nathan JA, Patel KJ. A histone deacetylase 3 and mitochondrial complex I axis regulates toxic formaldehyde production. SCIENCE ADVANCES 2023; 9:eadg2235. [PMID: 37196082 PMCID: PMC10191432 DOI: 10.1126/sciadv.adg2235] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/11/2023] [Indexed: 05/19/2023]
Abstract
Cells produce considerable genotoxic formaldehyde from an unknown source. We carry out a genome-wide CRISPR-Cas9 genetic screen in metabolically engineered HAP1 cells that are auxotrophic for formaldehyde to find this cellular source. We identify histone deacetylase 3 (HDAC3) as a regulator of cellular formaldehyde production. HDAC3 regulation requires deacetylase activity, and a secondary genetic screen identifies several components of mitochondrial complex I as mediators of this regulation. Metabolic profiling indicates that this unexpected mitochondrial requirement for formaldehyde detoxification is separate from energy generation. HDAC3 and complex I therefore control the abundance of a ubiquitous genotoxic metabolite.
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Affiliation(s)
- Niek Wit
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Ewa Gogola
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - James A. West
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
| | - Tristan Vornbäumen
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
| | - Rachel V. Seear
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
| | - Peter S. J. Bailey
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
| | - Guillermo Burgos-Barragan
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Meng Wang
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
- Department of Haematology, University of Cambridge, Cambridge, UK
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK
| | - Patrycja Krawczyk
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Daphne H. E. W. Huberts
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
| | - Fanni Gergely
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Nicholas J. Matheson
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
- NHS Blood and Transplant, Cambridge, UK
| | - Arthur Kaser
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Cambridge, Cambridge, UK
| | - James A. Nathan
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, Department of Medicine, University of Cambridge, Cambridge CB2 0AW, UK
| | - Ketan J. Patel
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
- MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
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18
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Zhang L, Yang Y, Zhang L, Ma J, Sun R, Tian Y, Yuan X, Liu B, Yu T, Jiang Z. Identification of long non-coding RNA in formaldehyde-induced cardiac dysplasia in rats. Food Chem Toxicol 2023; 174:113653. [PMID: 36758786 DOI: 10.1016/j.fct.2023.113653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/09/2023]
Abstract
Formaldehyde exposure during pregnancy can cause fetal congenital heart disease (CHD). However, the regulatory mechanism remains unclear. Studies on the biology of long non-coding RNAs (lncRNAs) show that lncRNAs can influence cardiac development and disease. However, expression patterns and regulatory mechanisms of action of lncRNAs in formaldehyde-induced CHD remain unclear. We used high-throughput sequencing strategies as a means of identifying lncRNA expression profiles in heart tissues of normal and formaldehyde-exposed newborn rats. Overall, 763 differentially expressed lncRNAs were identified, including 325 and 438 that were respectively up-regulated and down-regulated. GO and KEGG analyses indicated that the Ras and hedgehog signaling pathways may be important regulatory pathways in CHD caused by exposure to formaldehyde. A lncRNA-miRNA-mRNA co-expression network was constructed and a key miRNA, rno-miR-665, was identified. Furthermore, qRT-PCR analysis verified that the novel lncRNAs: MSTRG.27313.2, MSTRG.30629.2, MSTRG.36520.33, MSTRG.91234.1, and MSTRG.91233.9, were upregulated in the formaldehyde-exposed group. These differentially expressed lncRNAs identified during formaldehyde-induced CHD in newborn rats help explain CHD pathogenesis and provide an effective reference for diagnosing and treating CHD.
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Affiliation(s)
- Lu Zhang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Yanyan Yang
- Department of Immunology, Basic Medicine School, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, PR China
| | - Lin Zhang
- Department of Microbiology, Linyi Center for Disease Control and Prevention, Linyi, 276000, PR China
| | - Jianmin Ma
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Ruicong Sun
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Yu Tian
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Xiaoli Yuan
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Bingyu Liu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China; Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Road No. 38 Dengzhou, Qingdao, 266021, PR China.
| | - Zhirong Jiang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, PR China.
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19
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Balwierz R, Biernat P, Jasińska-Balwierz A, Siodłak D, Kusakiewicz-Dawid A, Kurek-Górecka A, Olczyk P, Ochędzan-Siodłak W. Potential Carcinogens in Makeup Cosmetics. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4780. [PMID: 36981689 PMCID: PMC10048826 DOI: 10.3390/ijerph20064780] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Facial makeup cosmetics are commonly used products that are applied to the skin, and their ingredients come into contact with it for many years. Consequently, they should only contain substances that are considered safe or used within an allowable range of established concentrations. According to current European laws, all cosmetics approved for use should be entirely safe for their users, and the responsibility for this lies with manufacturers, distributors, and importers. However, the use of cosmetics can be associated with undesirable effects due to the presence of certain chemical substances. An analysis of 50 random facial makeup cosmetics commercially available on the European Union market and manufactured in six European countries was carried out, concerning the presence of substances with potential carcinogenic properties, as described in recent years in the literature. Nine types of facial makeup cosmetics were selected, and their compositions, as declared on the labels, were analyzed. The carcinogens were identified with information present in the European CosIng database and according to the Insecticide Resistance Action Committee's (IRAC) classification. As a result, the following potential carcinogens were identified: parabens (methylparaben, propylparaben, butylparaben, and ethylparaben), ethoxylated compounds (laureth-4, lautreth-7, or ethylene glycol polymers known as PEG), formaldehyde donors (imidazolidinyl urea, quaternium 15, and DMDM hydantoin), and ethanolamine and their derivatives (triethanolamine and diazolidinyl urea), as well as carbon and silica. In conclusion, all of the analyzed face makeup cosmetics contain potential carcinogenic substances. The literature review confirmed the suppositions regarding the potential carcinogenic effects of selected cosmetic ingredients. Therefore, it seems necessary to carry out studies on the long-term exposure of compounds present in cosmetics and perhaps introduce stricter standards and laws regulating the potential presence of carcinogens and their activity in cosmetics.
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Affiliation(s)
| | - Paweł Biernat
- Department of Drug Forms Technology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | | | - Dawid Siodłak
- Faculty of Chemistry, University of Opole, 45-052 Opole, Poland
| | | | - Anna Kurek-Górecka
- Department of Community Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Kasztanowa 3, 41-200 Sosnowiec, Poland
| | - Paweł Olczyk
- Department of Community Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Kasztanowa 3, 41-200 Sosnowiec, Poland
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20
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Carberry CK, Rager JE. The impact of environmental contaminants on extracellular vesicles and their key molecular regulators: A literature and database-driven review. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2023; 64:50-66. [PMID: 36502378 PMCID: PMC10798145 DOI: 10.1002/em.22522] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Exposure to environmental chemicals is now well recognized as a significant factor contributing to the global burden of disease; however, there remain critical gaps in understanding the types of biological mechanisms that link environmental chemicals to adverse health outcomes. One type of mechanism that remains understudied involves extracellular vesicles (EVs), representing small cell-derived particles capable of carrying molecular signals such as RNAs, miRNAs, proteins, lipids, and chemicals through biological fluids and imparting beneficial, neutral, or negative effects on target cells. In fact, evidence is just now starting to grow that supports the role of EVs in various disease etiologies. This review aims to (1) Provide a landscape of the current understanding of the functional relationship between EVs and environmental chemicals; (2) Summarize current knowledge of EV regulatory processes including production, packaging, and release; and (3) Conduct a database-driven analysis of known chemical-gene interactions to predict and prioritize environmentally relevant chemicals that may impact EV regulatory genes and thus EV regulatory processes. This approach to predicting environmentally relevant chemicals that may alter EVs provides a novel method for evidence-based hypothesis generation for future studies evaluating the link between environmental exposures and EVs.
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Affiliation(s)
- Celeste K. Carberry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Julia E. Rager
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- The Institute for Environmental Health Solutions, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Curriculum in Toxicology and Environmental Medicine, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
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21
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Gonzálvez M, Ruiz de Ybáñez R, Rodríguez-Caro RC, Maíz-García A, Gómez L, Giménez A, Graciá E. Assessing DESS solution for the long-term preservation of nematodes from faecal samples. Res Vet Sci 2022; 153:45-48. [PMID: 36308790 DOI: 10.1016/j.rvsc.2022.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
Preservation of biological samples is a relevant issue for many scientific disciplines. Although traditional preservers, such as formaldehyde or ethanol, imply major disadvantages related to health risks, DNA degradation and distortion of structures, they are widely used. Hence, the search for viable alternatives preserving morphometry and genetics seems necessary. Here we assess the suitability of DESS solution to preserve adult nematodes and their eggs in faeces. Concretely, faecal samples of terrestrial tortoises with oxyurids were used to: (i) compare the 1-month storage efficacy of eggs from different conservation protocols (faeces without preserver at -20 °C, faeces with DESS solution at room temperature, faeces with DESS solution at -20 °C and faeces with ethanol 70% at room temperature); (ii) address morphological nematode identification after 2 years of storage with DESS. We also corroborated that nematode DNA remained viable after 2 years. Overall, our results showed that DESS solution at room temperature is an advisable alternative to conserve both parasite eggs and adult nematodes for morphological identification and genetic purposes. It also offers the advantages of being low-cost, safe and suitable for fieldwork conditions and shipments without refrigeration for nematode preservation.
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Affiliation(s)
- M Gonzálvez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain; Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain
| | - R Ruiz de Ybáñez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - R C Rodríguez-Caro
- Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain; Department of Zoology, Oxford University, 11a Mansfield Road, OX1 3SZ, Oxford, England, UK; Department of Ecology, University of Alicante, Road. San Vicente del Raspeig, 03690 Alicante, Spain
| | - A Maíz-García
- Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain
| | - L Gómez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain
| | - A Giménez
- Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain; Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Elche, Spain
| | - E Graciá
- Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain; Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Elche, Spain
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22
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Pirkkalainen H, Döpfer D, Soveri T, Kujala-Wirth M. Comparison of ozonated water and acidified copper sulphate in prevention of digital dermatitis in dairy cows. Acta Vet Scand 2022; 64:41. [PMID: 36539792 PMCID: PMC9764538 DOI: 10.1186/s13028-022-00657-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Digital dermatitis (DD) is the most significant infectious hoof disorder of cattle in Europe. Hoof baths are one of the most common control methods. Copper sulphate and formalin are commonly used in hoof baths, but their use is problematic in many European countries for health, environmental and safety reasons. Ozonated water and acidified copper sulphate were tested as prevention of DD in a 5-month study. Data were derived from 302 hind feet of Holstein and Estonian Red cows (no. of cows = 151) from a commercial dairy farm in Estonia. Altogether 168 hind feet were included in the acidified copper sulphate group and 134 feet in the ozonated water group. Hoof bathing was carried out three days a week (Mon, Wed, Fri) for two months and then two days a week (Mon, Wed) for three and a half months, in both groups. Ozonated water was sprayed on to the digital skin of hind feet of cows twice a day on treatment days, while the cows were eating. The copper sulphate bath consisted of copper sulphate (2%) mixed with an organic acid compound to acidify and ionize the solution. Cows walked through acidified copper sulphate solution twice a day on treatment days as they were exiting the milking parlor. DD negative and DD positive test results in both groups were compared and statistically tested for differences. The copper sulphate solution was more effective than ozonated water at preventing acute DD lesions. A random maximum likelihood model demonstrated that the odds ratio for DD in the ozonated water group was six times higher compared with DD in the acidified copper sulphate group. Most of the cows that were initially without any DD lesions (M0 + no other severe hoof lesion), remained lesion-free in both groups (copper sulphate group 97% and ozonated water group 88%). Despite trial design deficiencies, the findings indicate that acidified copper sulphate was a more effective solution in preventing DD than ozonated water.
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Affiliation(s)
- Hertta Pirkkalainen
- grid.7737.40000 0004 0410 2071Department of Production Animals, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, 04920 Saarentaus, Finland
| | - Dörte Döpfer
- grid.14003.360000 0001 2167 3675Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin–Madison, Madison, 53706 USA
| | - Timo Soveri
- grid.7737.40000 0004 0410 2071Department of Production Animals, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, 04920 Saarentaus, Finland
| | - Minna Kujala-Wirth
- grid.7737.40000 0004 0410 2071Department of Production Animals, Faculty of Veterinary Medicine, University of Helsinki, Paroninkuja 20, 04920 Saarentaus, Finland
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23
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Rubekina AA, Kamzeeva PN, Alferova VA, Shustova EY, Kolpakova ES, Yakovchuk EV, Karpova EV, Borodulina MO, Belyaev ES, Khrulev AA, Korshun VA, Shirshin EA, Kozlovskaya LI, Aralov AV. Hydrophobic Rose Bengal Derivatives Exhibit Submicromolar-to-Subnanomolar Activity against Enveloped Viruses. Biomolecules 2022; 12:1609. [PMID: 36358961 PMCID: PMC9687286 DOI: 10.3390/biom12111609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 09/10/2023] Open
Abstract
Rose Bengal (RB) is an anionic xanthene dye with multiple useful biological features, including photosensitization properties. RB was studied extensively as a photosensitizer, mostly for antibacterial and antitumor photodynamic therapy (PDT). The application of RB to virus inactivation is rather understudied, and no RB derivatives have been developed as antivirals. In this work, we used a synthetic approach based on a successful design of photosensitizing antivirals to produce RB derivatives for virus photoinactivation. A series of n-alkyl-substituted RB derivatives was synthesized and evaluated as antiviral photosensitizers. The compounds exhibited similar 1O2 generation rate and efficiency, but drastically different activities against SARS-CoV-2, CHIKV, and HIV; with comparable cytotoxicity for different cell lines. Submicromolar-to-subnanomolar activities and high selectivity indices were detected for compounds with C4-6 alkyl (SARS-CoV-2) and C6-8 alkyl (CHIKV) chains. Spectrophotometric assessment demonstrates low aqueous solubility for C8-10 congeners and a significant aggregation tendency for the C12 derivative, possibly influencing its antiviral efficacy. Initial evaluation of the synthesized compounds makes them promising for further study as viral inactivators for vaccine preparations.
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Affiliation(s)
- Anna A. Rubekina
- Faculty of Physics, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, 119234 Moscow, Russia
| | - Polina N. Kamzeeva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Vera A. Alferova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Gause Institute of New Antibiotics, Russian Academy of Sciences, Bolshaya Pirogovskaya 11, 119021 Moscow, Russia
| | - Elena Yu. Shustova
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
| | - Ekaterina S. Kolpakova
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
| | - Elizaveta V. Yakovchuk
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
| | - Evgenia V. Karpova
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
| | - Maria O. Borodulina
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
| | - Evgeny S. Belyaev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Science, 119071 Moscow, Russia
| | - Alexei A. Khrulev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Vladimir A. Korshun
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Evgeny A. Shirshin
- Faculty of Physics, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, 119234 Moscow, Russia
- Laboratory of Clinical Biophotonics, Biomedical Science and Technology Park, I.M. Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia
| | - Liubov I. Kozlovskaya
- Chumakov Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences (Institute of Poliomyelitis), 108819 Moscow, Russia
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, 119991 Moscow, Russia
| | - Andrey V. Aralov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
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24
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Heltveit-Olsen SR, Sundvall PD, Gunnarsson R, Snaebjörnsson Arnljots E, Kowalczyk A, Godycki-Cwirko M, Platteel TN, Koning HAM, Groen WG, Åhrén C, Grude N, Verheij TJM, Hertogh CMPM, Lindbaek M, Hoye S. Methenamine hippurate to prevent recurrent urinary tract infections in older women: protocol for a randomised, placebo-controlled trial (ImpresU). BMJ Open 2022; 12:e065217. [PMID: 36319057 PMCID: PMC10098264 DOI: 10.1136/bmjopen-2022-065217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
INTRODUCTION Methenamine hippurate is a urinary antiseptic used as preventive treatment for recurrent urinary tract infections (UTIs) in some Scandinavian countries. However, the scientific evidence for the preventive effect and safety for longer-term use is limited. The aim of this study is to assess whether methenamine hippurate can reduce the incidence of UTIs in older women with recurrent UTIs. METHODS AND ANALYSIS The ImpresU consortium is a collaboration between Norway, Sweden, Poland and the Netherlands. The study is a randomised, controlled, triple-blind phase IV clinical trial. Women ≥70 years with recurrent UTIs are screened for eligibility in a general practice setting. We aim to include 400 women in total, with 100 recruited from each collaborating country. The participants are randomised to treatment with methenamine hippurate 1 g or placebo tablets two times per day for a treatment period of 6 months, followed by a drug-free follow-up period of 6 months. The primary outcome is number of antibiotic treatments for UTIs during the treatment period. The secondary outcomes include number of antibiotic treatments for UTIs during the follow-up period and self-reported symptom of severity and duration of UTI episodes. Differences in complications between the treatment groups are measured as safety outcomes. We also aim to investigate whether strain characteristics or phylogenetic subgroups of Escherichia coli present in the urine culture at inclusion have a modifying effect on the outcomes. ETHICS AND DISSEMINATION Ethical approvals are obtained in all participating countries. The results will be communicated in peer-reviewed journals and at scientific conferences. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry (NCT04077580); EudraCT: 2018-002235-15.
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Affiliation(s)
- Silje Rebekka Heltveit-Olsen
- Antibiotic Centre for Primary Care, Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Pär-Daniel Sundvall
- General Practice/Family Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Research, Education, Development & Innovation, Primary Health Care, Region Västra Götaland, Borås, Sweden
| | - Ronny Gunnarsson
- General Practice/Family Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Research, Education, Development & Innovation, Primary Health Care, Region Västra Götaland, Borås, Sweden
| | - Egill Snaebjörnsson Arnljots
- General Practice/Family Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Research, Education, Development & Innovation, Primary Health Care, Region Västra Götaland, Borås, Sweden
| | - Anna Kowalczyk
- Centre for Family and Community Medicine, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Maciek Godycki-Cwirko
- Centre for Family and Community Medicine, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Tamara N Platteel
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Hilde A M Koning
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Wim G Groen
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Aging & Later Life, Amsterdam, The Netherlands
| | - Christina Åhrén
- Institute of Biomedicine, Department of Infectious Diseases and Centrum for Antibiotic Resistance Research (CARe), University of Gothenburg, Gothenburg, Sweden
- Swedish Strategic Program against Antimicrobial Resistance (Strama), Region Västra Götaland, Gothenburg, Sweden
| | - Nils Grude
- Antibiotic Centre for Primary Care, Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway
- Department of Medical Microbiology, Vestfold Hospital Trust, Tønsberg, Norway
| | - Theo J M Verheij
- Julius Center for Health Sciences and Primary Care, UMC Utrecht, Utrecht, The Netherlands
| | - Cees M P M Hertogh
- Department of Medicine for Older People, Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Aging & Later Life, Amsterdam, The Netherlands
| | - Morten Lindbaek
- Antibiotic Centre for Primary Care, Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Sigurd Hoye
- Antibiotic Centre for Primary Care, Department of General Practice, Institute of Health and Society, University of Oslo, Oslo, Norway
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25
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Jackman JA, Lavergne TA, Elrod CC. Antimicrobial monoglycerides for swine and poultry applications. FRONTIERS IN ANIMAL SCIENCE 2022. [DOI: 10.3389/fanim.2022.1019320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The development of natural, broadly acting antimicrobial solutions to combat viral and bacterial pathogens is a high priority for the livestock industry. Herein, we cover the latest progress in utilizing lipid-based monoglycerides as feed additives to address some of the biggest challenges in animal agriculture. The current industry needs for effective antimicrobial strategies are introduced before discussing why medium-chain monoglycerides are a promising solution due to attractive molecular features and biological functions. We then critically analyze recent application examples in which case monoglycerides demonstrated superior activity to prevent feed transmission of viruses in swine and to mitigate bacterial infections in poultry along with gut microbiome modulation capabilities. Future innovation strategies are also suggested to expand the range of application possibilities and to enable new monoglyceride delivery options.
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26
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Kim JO, Balshaw R, Trevena C, Banerji S, Murphy L, Dawe D, Tan L, Srinathan S, Buduhan G, Kidane B, Qing G, Domaratzki M, Aliani M. Data-driven identification of plasma metabolite clusters and metabolites of interest for potential detection of early-stage non-small cell lung cancer cases versus cancer-free controls. Cancer Metab 2022; 10:16. [PMID: 36224630 PMCID: PMC9559833 DOI: 10.1186/s40170-022-00294-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 09/22/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Metabolomics is a potential means for biofluid-based lung cancer detection. We conducted a non-targeted, data-driven assessment of plasma from early-stage non-small cell lung cancer (ES-NSCLC) cases versus cancer-free controls (CFC) to explore and identify the classes of metabolites for further targeted metabolomics biomarker development. METHODS Plasma from 250 ES-NSCLC cases and 250 CFCs underwent ultra-high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) in positive and negative electrospray ionization (ESI) modes. Molecular feature extraction, formula generation, and find-by-ion tools annotated metabolic entities. Analysis was restricted to endogenous metabolites present in ≥ 80% of samples. Unsupervised hierarchical cluster analysis identified clusters of metabolites. The metabolites with the strongest correlation with the principal component of each cluster were included in logistic regression modeling to assess discriminatory performance with and without adjustment for clinical covariates. RESULTS A total of 1900 UHPLC-QTOF-MS assessments identified 1667 and 2032 endogenous metabolites in the ESI-positive and ESI-negative modes, respectively. After data filtration, 676 metabolites remained, and 12 clusters of metabolites were identified from each ESI mode. Multivariable logistic regression using the representative metabolite from each cluster revealed effective classification of cases from controls with overall diagnostic accuracy of 91% (ESI positive) and 94% (ESI negative). Metabolites of interest identified for further targeted analysis include the following: 1b, 3a, 12a-trihydroxy-5b-cholanoic acid, pyridoxamine 5'-phosphate, sphinganine 1-phosphate, gamma-CEHC, 20-carboxy-leukotriene B4, isodesmosine, and 18-hydroxycortisol. CONCLUSIONS Plasma-based metabolomic detection of early-stage NSCLC appears feasible. Further metabolomics studies targeting phospholipid, steroid, and fatty acid metabolism are warranted to further develop noninvasive metabolomics-based detection of early-stage NSCLC.
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Affiliation(s)
- Julian O Kim
- Section of Radiation Oncology, Department of Radiology, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada. .,CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada.
| | - Robert Balshaw
- George and Fay Yee Center for Healthcare Innovation, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Connel Trevena
- Department of Computer Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Shantanu Banerji
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada.,Section of Medical Oncology, Department of Internal Medicine, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Leigh Murphy
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada.,Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - David Dawe
- CancerCare Manitoba Research Institute, Winnipeg, Manitoba, Canada.,Section of Medical Oncology, Department of Internal Medicine, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Lawrence Tan
- Section of Thoracic Surgery, Department of Surgery, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Sadeesh Srinathan
- Section of Thoracic Surgery, Department of Surgery, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Gordon Buduhan
- Section of Thoracic Surgery, Department of Surgery, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Biniam Kidane
- Section of Thoracic Surgery, Department of Surgery, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Gefei Qing
- Department of Human Pathology, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Michael Domaratzki
- Department of Computer Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Michel Aliani
- Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
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27
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Malakhova N, Mozharovskaia P, Kifle AB, Kozitsina A. Bismuth-coated screen-printed electrodes for the simple voltammetric determination of formaldehyde. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3423-3433. [PMID: 35993393 DOI: 10.1039/d2ay00876a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
For the first time, bismuth modified electrodes have been used for the voltammetric detection of formaldehyde (FM). The well-known method of forming formaldehyde hydrazone (FAH) in the presence of hydrazine sulphate was used to convert the hydrated form of FM into its electrochemically active derivative. Various experimental conditions for differential pulse voltammetry were studied to achieve the best analytical performance. The FAH reduction current (FM response) reaches its maximum value at a pH of a phosphate buffer solution of 5.2 ± 0.1 in the presence of 0.09-0.12 M hydrazine sulfate on a bismuth film preliminarily precipitated for 8-12 min from acidic Bi(III) acetate solutions at an electrolysis potential of -1.0 V on the surface of a screen-printed carbon electrode (SPCE). A dendritic-like film structure was created on the SPCE surface. Under the optimized conditions a linear calibration curve over the range of 0.01-5 mg L-1 (0.33-167 μM) FM was achieved, with a detection limit of 0.002 mg L-1 (0.06 μM). The determination of FM in waste water, melt water from snow within the city industrial zone, and a widely used pharmaceutical preparation "Endofalk®" with good results revealed the potential applicability of a bismuth modified SPCE (BiSPCE) for trace analysis.
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Affiliation(s)
- Nataliya Malakhova
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Polina Mozharovskaia
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alexander Berhane Kifle
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alisa Kozitsina
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
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28
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Tasangtong B, Henry CS, Sameenoi Y. Diameter-based inkjet-printed paper devices for formaldehyde analysis in foods. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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Chrobak J, Iłowska J, Chrobok A. Formaldehyde-Free Resins for the Wood-Based Panel Industry: Alternatives to Formaldehyde and Novel Hardeners. Molecules 2022; 27:molecules27154862. [PMID: 35956815 PMCID: PMC9369507 DOI: 10.3390/molecules27154862] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 02/04/2023] Open
Abstract
Due to its carcinogenic properties, the presence of formaldehyde in resins and other industrial products has been a subject of great concern in recent years. The presented review focuses on modern alternatives for the production of wood-based panels; i.e., substitutes for formaldehyde in the production of amino and phenolic resins, as well as novel hardeners for formaldehyde-free wood adhesives. Solutions in which formaldehyde in completely replaced are presented in this review. Recent advances indicate that it is possible to develop new formaldehyde-free systems of resins with compatible hardeners. The formaldehyde substitutes that have primarily been tested are glyoxal, glutaraldehyde, furfural, 5-hydroxymethylfurfural, and dimethoxyethanal. The use of such substitutes eliminates the problem of free formaldehyde emission originating from the resin used in the production of wood-based panels. However, these alternatives are mostly characterized by worse reactivity, and, as a result, the use of formaldehyde-free resins may affect the mechanical and strength properties of wood-based panels. Nonetheless, there are still many substantial challenges for the complete replacement of formaldehyde and further research is needed, especially in the field of transferring the technology to industrial practice.
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Affiliation(s)
- Justyna Chrobak
- Łukasiewicz Research Network—Institute of Heavy Organic Synthesis “Blachownia”, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland;
- Joint Doctoral School, Silesian University of Technology, Akademicka 2a, 44-100 Gliwice, Poland
- Correspondence:
| | - Jolanta Iłowska
- Łukasiewicz Research Network—Institute of Heavy Organic Synthesis “Blachownia”, Energetyków 9, 47-225 Kędzierzyn-Koźle, Poland;
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland;
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Ham YH, Pan G, Chan HW, Chan W. LC-MS/MS Quantitation of Formaldehyde-Glutathione Conjugates as Biomarkers of Formaldehyde Exposure and Exposure-Induced Antioxidants: A New Look on an Old Topic. Chem Res Toxicol 2022; 35:858-866. [PMID: 35471961 DOI: 10.1021/acs.chemrestox.2c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Humans are continuously exposed to formaldehyde via both endogenous and exogenous sources. Prolonged exposure to formaldehyde is associated with many human diseases, such as lung cancer and leukemia. The goal of this study is to develop biomarkers to measure formaldehyde exposure, which could be used to predict the risk of associated diseases. As glutathione (GSH) is well-known for its crucial role in the detoxification of a wide variety of xenobiotics, including formaldehyde, we rigorously quantitated in this study the conjugates formed when formaldehyde reacted with GSH using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) coupled with an isotope dilution method. The results showed for the first time that (S)-1-(((R)-2-amino-3-(carboxymethylamino)-3-oxopropylthio)methyl)-5-oxopyrrolidine-2-carboxylic acid (PGF) and thioproline-glycine (SPro-Gly) are major metabolites in both nonenzymatic reactions and formaldehyde-exposed human cells. In particular, over 35% of the formaldehyde from external sources was found to convert to SPro-Gly in the exposed cells. Interestingly, data showed that these exposure-induced adducts exhibited good antioxidative properties, which can protect cells from hydrogen peroxide mediated oxidative insult. It is anticipated that the findings of this study could shed light on developing PGF and SPro-Gly as dietary supplements and on the development of noninvasive methods to assess health risks associated with formaldehyde exposure.
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Affiliation(s)
- Yat-Hing Ham
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guanrui Pan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ho Wai Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wan Chan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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31
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Thepchuay Y, Chairit W, Saengsane N, Porrawatkul P, Pimsen R. Simple and Green Colorimetric Method for the Detection of Formaldehyde in Vegetable Samples. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Deep Eutectic Solvent-Based Coating Sorbent for Preconcentration of Formaldehyde by Thin-Film Solid-Phase Microextraction Technique. Processes (Basel) 2022. [DOI: 10.3390/pr10050828] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A thin-film solid-phase microextraction method with a sorbent composed of a deep eutectic solvent was developed for the preconcentration of formaldehyde from river and lake water samples. Four new deep eutectic solvents (DESs) were synthesized, each in molar ratios 1:1, 1:2, and 1:3. Among prepared compounds, the greatest efficiency in the proposed method of preconcentration of formaldehyde derivatized with Nash reagent was demonstrated by DES-3 consisting of benzyldimethylhexadecylammonium chloride and lauric acid, in a molar ratio of 1:3. For the proposed method, the parameters affecting the extraction efficiency of formaldehyde were optimized (including the choice of DES-based sorbent and desorption solvent as well as the sample volume and pH, the salting-out effect, the extraction time, and the desorption time). Under optimal conditions, the proposed method achieved good precision between 3.3% (for single sorbent) and 4.8% (for sorbent-to-sorbent) as well as good recovery ranging from 78.0 to 99.1%. The limits of detection and quantitation were 0.15 ng mL−1 and 0.50 ng mL−1, respectively. The enrichment factor was equal to 178. The developed method was successfully applied to determine formaldehyde in environmental water samples.
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33
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Rudge ES, Chan AHY, Leeper FJ. Prodrugs of pyrophosphates and bisphosphonates: disguising phosphorus oxyanions. RSC Med Chem 2022; 13:375-391. [PMID: 35647550 PMCID: PMC9020613 DOI: 10.1039/d1md00297j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Pyrophosphates have important functions in living systems and thus pyrophosphate-containing molecules and their more stable bisphosphonate analogues have the potential to be used as drugs for treating many diseases including cancer and viral infections. Both pyrophosphates and bisphosphonates are polyanionic at physiological pH and, whilst this is essential for their biological activity, it also limits their use as therapeutic agents. In particular, the high negative charge density of these compounds prohibits cell entry other than by endocytosis, prevents transcellular oral absorption and causes sequestration to bone. Therefore, prodrug strategies have been developed to temporarily disguise the charges of these compounds. This review examines the various systems that have been used to mask the phosphorus-containing moieties of pyrophosphates and bisphosphonates and also illustrates the utility of such prodrugs.
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Affiliation(s)
- Emma S Rudge
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Alex H Y Chan
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Finian J Leeper
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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Tantipanjaporn A, Ka-Yan Kung K, Sit HY, Wong MK. Quinolizinium-based fluorescent probes for formaldehyde detection in aqueous solution, serum, and test strip via 2-aza-Cope rearrangement. RSC Adv 2022; 12:11543-11547. [PMID: 35425039 PMCID: PMC9006350 DOI: 10.1039/d2ra01397e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/06/2022] [Indexed: 01/31/2023] Open
Abstract
Formaldehyde is an abundant contaminant in food and environments causing various diseases. Thus, the development of fast, simple, and selective formaldehyde detection is of great interest. Herein, novel quinolizinium-based fluorescent probes were designed based on a 2-aza-Cope rearrangement reaction and showed high selectivity to formaldehyde by fluorescence emission shift. We successfully reduced the detection time by increasing the bulkiness of the homoallylic moiety. The probes were applied to detect formaldehyde in aqueous solution, serum, and paper format. Novel quinolizinium-based fluorescent probes were designed based on 2-aza-Cope rearrangement reaction to detect formaldehyde in aqueous solution, serum, and paper format. The use of a geminal dimethyl group allows fast response within 15 min.![]()
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Affiliation(s)
- Ajcharapan Tantipanjaporn
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hum Hong Kong China
| | - Karen Ka-Yan Kung
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hum Hong Kong China
| | - Hoi-Yi Sit
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China .,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hum Hong Kong China
| | - Man-Kin Wong
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China .,State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hum Hong Kong China
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Wang M, Dingler FA, Patel KJ. Genotoxic aldehydes in the hematopoietic system. Blood 2022; 139:2119-2129. [PMID: 35148375 DOI: 10.1182/blood.2019004316] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/24/2022] [Indexed: 11/20/2022] Open
Abstract
Reactive aldehydes are potent genotoxins that threaten the integrity of hematopoietic stem cells and blood production. To protect against aldehydes, mammals have evolved a family of enzymes to detoxify aldehydes, and the Fanconi anemia DNA repair pathway to process aldehyde-induced DNA damage. Loss of either protection mechanisms in humans results in defective hematopoiesis and predisposition to leukemia. This review will focus on the impact of genotoxic aldehydes on hematopoiesis, the sources of endogenous aldehydes, and potential novel protective pathways.
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Affiliation(s)
- Meng Wang
- Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom
- Department of Haematology and
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, United Kingdom; and
| | - Felix A Dingler
- Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - K J Patel
- Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
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36
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Network-based integrated analysis for toxic effects of high-concentration formaldehyde inhalation exposure through the toxicogenomic approach. Sci Rep 2022; 12:5645. [PMID: 35379891 PMCID: PMC8979994 DOI: 10.1038/s41598-022-09673-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/21/2022] [Indexed: 01/01/2023] Open
Abstract
Formaldehyde is a colorless, pungent, highly reactive, and toxic environmental pollutant used in various industries and products. Inhaled formaldehyde is a human and animal carcinogen that causes genotoxicity, such as reactive oxygen species formation and DNA damage. This study aimed to identify the toxic effects of inhaled formaldehyde through an integrated toxicogenomic approach utilizing database information. Microarray datasets (GSE7002 and GSE23179) were collected from the Gene Expression Omnibus database, and differentially expressed genes were identified. The network analyses led to the construction of the respiratory system-related biological network associated with formaldehyde exposure, and six upregulated hub genes (AREG, CXCL2, HMOX1, PLAUR, PTGS2, and TIMP1) were identified. The expression levels of these genes were verified via qRT-PCR in 3D reconstructed human airway tissues exposed to aerosolized formaldehyde. Furthermore, NRARP was newly found as a potential gene associated with the respiratory and carcinogenic effects of formaldehyde by comparison with human in vivo and in vitro formaldehyde-exposure data. This study improves the understanding of the toxic mechanism of formaldehyde and suggests a more applicable analytic pipeline for predicting the toxic effects of inhaled toxicants.
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37
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Zhang Y, Yang Y, Ju H, He X, Sun P, Tian Y, Yang P, Song XX, Yu T, Jiang Z. Comprehensive profile of circRNAs in formaldehyde induced heart development. Food Chem Toxicol 2022; 162:112899. [PMID: 35231573 DOI: 10.1016/j.fct.2022.112899] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/17/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023]
Abstract
Circular RNAs (circRNAs) are a novel type of long non-coding RNAs that can regulate gene expression in heart development and heart disease. However, the expression pattern of circRNAs in congenital heart disease (CHD) induced by formaldehyde exposure is still unknown. We detected circRNAs expression profiles in heart tissue taken from six neonatal rat pups with formaldehyde exposure group and normal group using RNA-sequencing. Results revealed that a total of 54 circRNAs were dysregulated in the formaldehyde exposure group compared to the normal group. Among them, 31 were upregulated and 23 were downregulated (fold change = 2.0, p < 0.0 5). The qRT-qPCR results showed that expressions of 12:628708|632694, 18:77477060|77520779, 5:167486001|167526275 were significantly upregulated, while that of 7:41167312|4116775 and 20:50659751|5068786 were notably downregulated; the expression pattern was consistent with the RNA sequencing data. Bioinformatics analysis shows that the pathogenesis of formaldehyde exposure-induced CHD may involve Hippo-YAP pathway、Notch signaling pathway and other pathways. A key miRNA (rno-miR-665) was identified by constructing a circRNA-miRNA-mRNA co-expression network. In summary, the study illustrated that circRNAs differentially expressed in fetal heart tissues during formaldehyde exposure has potential biological functions and may be a biomarker or therapeutic target for CHD.
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Affiliation(s)
- Ying Zhang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Yanyan Yang
- Department of Immunology, Basic Medicine School, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, People's Republic of China
| | - Hui Ju
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Road No. 16 Jiangsu, Qingdao, 266000, Shandong, People's Republic of China
| | - Xiangqin He
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Pin Sun
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Yu Tian
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Panyu Yang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Xiao-Xia Song
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China
| | - Tao Yu
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China; Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Road No. 38 Dengzhou, Qingdao, 266021, People's Republic of China.
| | - Zhirong Jiang
- Department of Cardiac Ultrasound, The Affiliated Hospital of Qingdao University, Road No. 59 Haier, Qingdao, 266100, Shandong, People's Republic of China.
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38
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Kezic S, Nunez R, Babić Ž, Hallmann S, Havmose MS, Johansen JD, John SM, Macan M, Symanzik C, Uter W, Weinert P, Turk R, Macan J, van der Molen HF. Occupational Exposure of Hairdressers to Airborne Hazardous Chemicals: A Scoping Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19074176. [PMID: 35409860 PMCID: PMC8998463 DOI: 10.3390/ijerph19074176] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Exposure to hazardous chemicals released during hairdressing activities from hair care products puts hairdressers at risk of adverse health effects. Safety assessments of hair products are mainly focused on consumers, but exposure for professional hairdressers might be substantially higher. OBJECTIVE To identify and assess available research data on inhalation exposures of professional hairdressers. METHODS A systematic search of studies between 1 January 2000 and 30 April 2021 was performed in Medline, Embase, Web of Science and in Cochrane registry, toxicological dossiers of the Scientific Committee on Consumer Safety (SCCS) of the European Commission as well as the German MAK Commission. Studies reporting quantitative data on airborne concentrations of chemicals in the hairdresser's workplace were considered. The outcome was an airborne concentration of chemicals in the working environment, which was compared, when possible, with current occupational exposure limits (OEL) or guidance levels. RESULTS In total, 23 studies performed in 14 countries were included. The average number of hairdressing salons per study was 22 (range 1-62). Chemicals most frequently measured were formaldehyde (n = 8), ammonia (n = 5), total volatile organic compounds (TVOC) (n = 5), and toluene (n = 4). More than fifty other chemicals were measured in one to three studies, including various aromatic and aliphatic organic solvents, hydrogen peroxide, persulfate, and particulate matter. Most studies reported environmental air concentrations, while personal exposure was measured only in seven studies. The measured air concentrations of formaldehyde, ammonia, and TVOC exceeded OEL or guidance values in some studies. There was large variability in measuring conditions and reported air concentrations differed strongly within and between studies. CONCLUSION Hairdressers are exposed to a wide spectrum of hazardous chemicals, often simultaneously. Airborne concentrations of pollutants depend on salon characteristics such as ventilation and the number of customers but also on used products that are often country- or client-specific. For exposure to formaldehyde, ammonia, and TVOC exceeding OELs or guidance values for indoor air was observed. Therefore, occupational exposure should be taken into account by safety regulations for hair care products.
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Affiliation(s)
- Sanja Kezic
- Amsterdam UMC, Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (R.N.); (H.F.v.d.M.)
- Correspondence: ; Tel.: +31-205-665-321
| | - Roberto Nunez
- Amsterdam UMC, Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (R.N.); (H.F.v.d.M.)
| | - Željka Babić
- Institute for Medical Research and Occupational Health, HR 10001 Zagreb, Croatia; (Ž.B.); (M.M.); (R.T.); (J.M.)
| | - Sarah Hallmann
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen, 91054 Erlangen, Germany; (S.H.); (W.U.)
| | - Martin S. Havmose
- National Allergy Research Centre, Department of Skin and Allergy, University of Copenhagen, Gentofte Hospital, 2900 Copenhagen, Denmark; (M.S.H.); (J.D.J.)
| | - Jeanne D. Johansen
- National Allergy Research Centre, Department of Skin and Allergy, University of Copenhagen, Gentofte Hospital, 2900 Copenhagen, Denmark; (M.S.H.); (J.D.J.)
| | - Swen M. John
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, 49076 Osnabrück, Germany; (S.M.J.); (C.S.)
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), Osnabrück University, 10777 Berlin, Germany;
| | - Marija Macan
- Institute for Medical Research and Occupational Health, HR 10001 Zagreb, Croatia; (Ž.B.); (M.M.); (R.T.); (J.M.)
| | - Cara Symanzik
- Department of Dermatology, Environmental Medicine and Health Theory, Osnabrück University, 49076 Osnabrück, Germany; (S.M.J.); (C.S.)
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), Osnabrück University, 10777 Berlin, Germany;
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen, 91054 Erlangen, Germany; (S.H.); (W.U.)
| | - Patricia Weinert
- Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm), Osnabrück University, 10777 Berlin, Germany;
| | - Rajka Turk
- Institute for Medical Research and Occupational Health, HR 10001 Zagreb, Croatia; (Ž.B.); (M.M.); (R.T.); (J.M.)
| | - Jelena Macan
- Institute for Medical Research and Occupational Health, HR 10001 Zagreb, Croatia; (Ž.B.); (M.M.); (R.T.); (J.M.)
| | - Henk F. van der Molen
- Amsterdam UMC, Department of Public and Occupational Health, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (R.N.); (H.F.v.d.M.)
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The Adverse Effects of Air Pollution on the Eye: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031186. [PMID: 35162209 PMCID: PMC8834466 DOI: 10.3390/ijerph19031186] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 12/11/2022]
Abstract
Air pollution is inevitably the result of human civilization, industrialization, and globalization. It is composed of a mixture of gases and particles at harmful levels. Particulate matter (PM), nitrogen oxides (NOx), and carbon dioxides (CO2) are mainly generated from vehicle emissions and fuel consumption and are the main materials causing outdoor air pollution. Exposure to polluted outdoor air has been proven to be harmful to human eyes. On the other hand, indoor air pollution from environmental tobacco smoking, heating, cooking, or poor indoor ventilation is also related to several eye diseases, including conjunctivitis, glaucoma, cataracts, and age-related macular degeneration (AMD). In the past 30 years, no updated review has provided an overview of the impact of air pollution on the eye. We reviewed reports on air pollution and eye diseases in the last three decades in the PubMed database, Medline databases, and Google Scholar and discussed the effect of various outdoor and indoor pollutants on human eyes.
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Ravi K, Pushpa NB, Patra A. Will artificial intelligence assume a role in anatomy education? NATIONAL JOURNAL OF CLINICAL ANATOMY 2022. [DOI: 10.4103/njca.njca_85_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Cammalleri V, Pocino RN, Marotta D, Protano C, Sinibaldi F, Simonazzi S, Petyx M, Iavicoli S, Vitali M. Occupational scenarios and exposure assessment to formaldehyde: A systematic review. INDOOR AIR 2022; 32:e12949. [PMID: 34708443 PMCID: PMC9298394 DOI: 10.1111/ina.12949] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 10/07/2021] [Accepted: 10/13/2021] [Indexed: 05/25/2023]
Abstract
The objectives of the systematic review were to: identify the work sectors at risk for exposure to formaldehyde; investigate the procedures applied to assess occupational exposure; evaluate the reported exposure levels among the different settings. An electronic search of Pubmed, Scopus, Web of Science and ToxNet was carried out for collecting all the articles on the investigated issue published from January 1, 2004 to September 30, 2019. Forty-three papers were included in the review, and evidenced a great number of occupational scenarios at risk for formaldehyde exposure. All the included studies collected data on formaldehyde exposure levels by a similar approach: environmental and personal sampling followed by chromatographic analyses. Results ranged from not detectable values until to some mg m-3 of airborne formaldehyde. The riskiest occupational settings for formaldehyde exposure were the gross anatomy and pathology laboratories, the hairdressing salons and some specific productive settings, such as wooden furniture factories, dairy facilities and fish hatcheries. Notice that formaldehyde, a well-known carcinogen, was recovered in air at levels higher than outdoor in almost all the studied scenarios/activities; thus, when formaldehyde cannot be removed or substituted, targeted strategies for exposure elimination or mitigation must be adopted.
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Affiliation(s)
- Vittoria Cammalleri
- Department of Public Health and Infectious DiseasesUniversity of Rome “La Sapienza”RomeItaly
| | - Roberta Noemi Pocino
- Department of Public Health and Infectious DiseasesUniversity of Rome “La Sapienza”RomeItaly
| | - Daniela Marotta
- Department of Public Health and Infectious DiseasesUniversity of Rome “La Sapienza”RomeItaly
| | - Carmela Protano
- Department of Public Health and Infectious DiseasesUniversity of Rome “La Sapienza”RomeItaly
| | - Federica Sinibaldi
- Department of Anatomical Histological Medical Legal Sciences and Locomotor ApparatusUniversity of Rome “La Sapienza”RomeItaly
| | - Stefano Simonazzi
- Department of Anatomical Histological Medical Legal Sciences and Locomotor ApparatusUniversity of Rome “La Sapienza”RomeItaly
| | - Marta Petyx
- Department of Occupational and Environmental Medicine, Epidemiology and HygieneINAIL ResearchRomeItaly
| | - Sergio Iavicoli
- Department of Occupational and Environmental Medicine, Epidemiology and HygieneINAIL ResearchRomeItaly
| | - Matteo Vitali
- Department of Public Health and Infectious DiseasesUniversity of Rome “La Sapienza”RomeItaly
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Lu K, Hsiao YC, Liu CW, Schoeny R, Gentry R, Starr TB. A Review of Stable Isotope Labeling and Mass Spectrometry Methods to Distinguish Exogenous from Endogenous DNA Adducts and Improve Dose-Response Assessments. Chem Res Toxicol 2021; 35:7-29. [PMID: 34910474 DOI: 10.1021/acs.chemrestox.1c00212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cancer remains the second most frequent cause of death in human populations worldwide, which has been reflected in the emphasis placed on management of risk from environmental chemicals considered to be potential human carcinogens. The formation of DNA adducts has been considered as one of the key events of cancer, and persistence and/or failure of repair of these adducts may lead to mutation, thus initiating cancer. Some chemical carcinogens can produce DNA adducts, and DNA adducts have been used as biomarkers of exposure. However, DNA adducts of various types are also produced endogenously in the course of normal metabolism. Since both endogenous physiological processes and exogenous exposure to xenobiotics can cause DNA adducts, the differentiation of the sources of DNA adducts can be highly informative for cancer risk assessment. This review summarizes a highly applicable methodology, termed stable isotope labeling and mass spectrometry (SILMS), that is superior to previous methods, as it not only provides absolute quantitation of DNA adducts but also differentiates the exogenous and endogenous origins of DNA adducts. SILMS uses stable isotope-labeled substances for exposure, followed by DNA adduct measurement with highly sensitive mass spectrometry. Herein, the utilities and advantage of SILMS have been demonstrated by the rich data sets generated over the last two decades in improving the risk assessment of chemicals with DNA adducts being induced by both endogenous and exogenous sources, such as formaldehyde, vinyl acetate, vinyl chloride, and ethylene oxide.
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Affiliation(s)
- Kun Lu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yun-Chung Hsiao
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Chih-Wei Liu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Rita Schoeny
- Rita Schoeny LLC, 726 Fifth Street NE, Washington, D.C. 20002, United States
| | - Robinan Gentry
- Ramboll US Consulting, Inc., Monroe, Louisiana 71201, United States
| | - Thomas B Starr
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.,TBS Associates, 7500 Rainwater Road, Raleigh, North Carolina 27615, United States
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Hansda AK, Goswami R. 17-β estradiol signalling affects cardiovascular and cancer pathogenesis by regulating the crosstalk between transcription factors and EC-miRNAs. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Empirical Analysis Revealing Privileged Chemical Space of Cosmetic Preservatives. COSMETICS 2021. [DOI: 10.3390/cosmetics8030080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Most cosmetic products require preservation to prevent microbial contamination and to ensure consumer safety. Due to regulatory restrictions and rejection by consumers, preservative options have become limited and the development of novel solutions is needed. This search can be guided by knowledge about favorable chemical space for cosmetic preservatives. Therefore, we used preservatives allowed in the EU as training set and calculated various molecular properties. Empirical analysis revealed two separated areas of privileged chemical space with the net charge as distinctive property. The first area comprises the group of neutral and anionic preservatives and is characterized by low molecular size as well as limited hydrogen-bonding capacity, polarity, and flexibility. The second area includes cationic preservatives, which are rather diffusely distributed regarding molecular weight and hydrogen-bonding, however, all members share high flexibility. Both groups significantly differ from antibiotics, reflecting the specific requirement of cosmetic preservation. The molecular properties defining the privileged chemical space are easy to calculate, and thus, can provide guidance for the development of novel preservatives.
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Wijaya AN, Margiana R, Kusumaningtyas S, Furqonita D. Comparison of decomposition rate of hind limbs of preserved mice with ethanol-glycerin and formaldehyde of advanced fixative solution. Anat Cell Biol 2021; 54:225-231. [PMID: 33767018 PMCID: PMC8225480 DOI: 10.5115/acb.20.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 12/03/2022] Open
Abstract
Learning anatomy in medical school is still closely based on the use of cadavers. The burial of preserved cadaver poses a problem, specifically, it contaminates the soil with formalin. Many studies have been conducted to find an alternative fixative to update or modify formalin usage. One of them is ethanol-glycerin (EG), which suggests promising results. Despite that fact, there has yet to be any research comparing the decomposition rate between EG and formalin. This study is conducted to compare the rate of decomposition between the two fixative solutions, EG and 4% formalin on the hind limb of mice. The mice were first preserved using a standard primary fixative solution which is 10% formalin, following that procedure is preservation using advanced fixative solution, EG or 4% formalin. Upon completing the preservation steps, the mice were buried for 6 weeks and observed weekly. The stages of decomposition were assessed semi-quantitatively depending on its appearance. The hind limbs of mice that were fixed with EG solution managed to reach the last stage of decomposition, dry & remains, while the 4% formalin group of mice still remained in the previous stage, advanced decay. It is concluded that the mice hind limbs that have been previously preserved with EG advanced fixative solution has a faster decomposition rate compared to 4% formalin.
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Affiliation(s)
- Amanda Natalie Wijaya
- Undergraduate Program of Medical Education, Faculty of Medicine, Universitas Indonesia, Jakarta
| | - Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | | | - Deswaty Furqonita
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
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Sain S, Matsakas L, Rova U, Christakopoulos P, Öman T, Skrifvars M. Spruce Bark-Extracted Lignin and Tannin-Based Bioresin-Adhesives: Effect of Curing Temperatures on the Thermal Properties of the Resins. Molecules 2021; 26:molecules26123523. [PMID: 34207740 PMCID: PMC8230302 DOI: 10.3390/molecules26123523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, formaldehyde-free bioresin adhesives were synthesised from lignin and tannin, which were obtained from softwood bark. The extraction was done via organosolv treatment and hot water extraction, respectively. A non-volatile, non-toxic aldehyde, glyoxal, was used as a substitute for formaldehyde in order to modify the chemical structure of both the lignin and tannin. The glyoxal modification reaction was confirmed by ATR–FTIR spectroscopy. Three different resin formulations were prepared using modified lignin along with the modified tannin. The thermal properties of the modified lignin, tannin, and the bioresins were assessed by DSC and TGA. When the bioresins were cured at a high temperature (200 °C) by compression moulding, they exhibited higher thermal stability as well as an enhanced degree of cross-linking compared to the low temperature-cured bioresins. The thermal properties of the resins were strongly affected by the compositions of the resins as well as the curing temperatures.
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Affiliation(s)
- Sunanda Sain
- Swedish Centre for Resource Recovery, University of Borås, SE-501 90 Borås, Sweden;
| | - Leonidas Matsakas
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (L.M.); (U.R.); (P.C.)
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (L.M.); (U.R.); (P.C.)
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden; (L.M.); (U.R.); (P.C.)
| | - Tommy Öman
- Materials and Production, RISE Research Institutes of Sweden, SE-943 33 Öjebyn, Sweden;
| | - Mikael Skrifvars
- Swedish Centre for Resource Recovery, University of Borås, SE-501 90 Borås, Sweden;
- Correspondence: ; Tel.: +46-33-435-4497
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Lammens L, Martel A, Pasmans F. Application of Disinfectants for Environmental Control of a Lethal Amphibian Pathogen. J Fungi (Basel) 2021; 7:jof7060406. [PMID: 34064294 PMCID: PMC8224365 DOI: 10.3390/jof7060406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Chytridiomycosis is an emerging infectious disease threatening amphibian populations worldwide. While environmental disinfection is important in mitigating the disease, successful elimination of Batrachochytrium dendrobatidis (Bd) without excessively harming ecosystems is challenging. We selected peracetic acid (PAA) as the most potent of six commercially available products regarding their ability to inhibit growth of a highly virulent Bd strain. PAA killed Bd after 5 min of exposure to approximately 94.7 mg/L. We examined the toxicity of PAA against three invertebrate species and Discoglossus pictus tadpoles. 93% of invertebrates, but none of the tadpoles survived 5 min of exposure to 94.7 mg/L. Tadpoles showed no adverse effects after 5 min exposure to concentrations of approximately 37.9 mg/L or lower. Addition of PAA to aquatic microcosms decreased pH, while dissolved oxygen (DO) initially increased. Degradation of PAA reversed the pH drop, but caused a massive drop in DO, which could be remedied by aeration. As proof of concept, microcosms that were aerated and treated with 94.7 mg/L PAA sustained survival of tadpoles starting 48 h after treatment. Disinfecting aquatic environments using PAA could contribute to mitigating chytridiomycosis, while preserving at least some invertebrate diversity, but requires temporary removal of resident amphibians.
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Recycling Potential for Non-Valorized Plastic Fractions from Electrical and Electronic Waste. RECYCLING 2021. [DOI: 10.3390/recycling6020033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This paper describes a study for waste of electrical and electronic equipment (WEEE) to characterise the plastic composition of different mixed plastic fractions. Most of the samples studied are currently excluded from material recycling and arise as side streams in state-of-the-art plastics recycling plants. These samples contain brominated flame retardants (BFR) or other substances of concern listed as persistent organic pollutants or in the RoHS directive. Seventeen samples, including cathode ray tube (CRT) monitors, CRT televisions, flat screens such as liquid crystal displays, small domestic appliances, and information and communication technology, were investigated using density- and dissolution-based separation processes. The total bromine and chlorine contents of the samples were determined by X-ray fluorescence spectroscopy, indicating a substantial concentration of both elements in density fractions above 1.1 g/cm3, most significantly in specific solubility classes referring to ABS and PS. This was further supported by specific flame retardant analysis. It was shown that BFR levels of both polymers can be reduced to levels below 1000 ppm by dissolution and precipitation processes enabling material recycling in compliance with current legislation. As additional target polymers PC and PC-ABS were also recycled by dissolution but did not require an elimination of BFR. Finally, physicochemical investigations of recycled materials as gel permeation chromatography, melt flow rate, and differential scanning calorimetry suggest a high purity and indicate no degradation of the technical properties of the recycled polymers.
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Thompson CM, Gentry R, Fitch S, Lu K, Clewell HJ. An updated mode of action and human relevance framework evaluation for Formaldehyde-Related nasal tumors. Crit Rev Toxicol 2021; 50:919-952. [PMID: 33599198 DOI: 10.1080/10408444.2020.1854679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Formaldehyde is a reactive aldehyde naturally present in all plant and animal tissues and a critical component of the one-carbon metabolism pathway. It is also a high production volume chemical used in the manufacture of numerous products. Formaldehyde is also one of the most well-studied chemicals with respect to environmental fate, biology, and toxicology-including carcinogenic potential, and mode of action (MOA). In 2006, a published MOA for formaldehyde-induced nasal tumors in rats concluded that nasal tumors were most likely driven by cytotoxicity and regenerative cell proliferation, with possible contributions from direct genotoxicity. In the past 15 years, new research has better informed the MOA with the publication of in vivo genotoxicity assays, toxicogenomic analyses, and development of ultra-sensitive methods to measure endogenous and exogenous formaldehyde-induced DNA adducts. Herein, we review and update the MOA for nasal tumors, with particular emphasis on the numerous studies published since 2006. These new studies further underscore the involvement of cytotoxicity and regenerative cell proliferation, and further inform the genotoxic potential of inhaled formaldehyde. The data lend additional support for the use of mechanistic data for the derivation of toxicity criteria and/or scientifically supported approaches for low-dose extrapolation for the risk assessment of formaldehyde.
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Affiliation(s)
| | | | | | - Kun Lu
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, NC, USA
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