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Ali RB, Lee YJ, Sial QA, Duy LT, Seo H. A new insight into vacancy modulation in lead-doped tungsten oxide nonarchitect for photoelectrochemical water splitting: An experimental and density functional theory approach. J Colloid Interface Sci 2024; 665:19-31. [PMID: 38513405 DOI: 10.1016/j.jcis.2024.03.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/02/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
In this study, the impact of lead (Pb) doping on the photoelectrochemical (PEC) water splitting performance of tungsten oxide (WO3) photoanodes was investigated through a combination of experimental and theoretical approaches. Pb-doped WO3 nanostructured thin films were synthesized hydrothermally, and extensive characterizations were conducted to study their morphologies, band edge, optical and photoelectrochemical properties. Pb-doped WO3 exhibited efficient carrier density and charge separations by reducing the charge transfer resistance. The 0.96 at% Pb doping shows a record photocurrent of ∼ 1.49 mAcm-2 and ∼ 3.44 mAcm-2 (with the hole scavenger) at 1.23 V vs. RHE besides yielding a high charge separation and Faradaic efficiencies of ∼ 86 % and > 90 %, respectively. A shift in the Fermi level towards the conduction band was also observed upon the Pb doping. Additionally, density functional theory (DFT) simulations demonstrated the changes in the density of states and bandgap upon Pb doping, exhibiting favorable changes in the surface and bulk properties of WO3.
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Affiliation(s)
- Rana Basit Ali
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Young Jae Lee
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Qadeer Akbar Sial
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Le Thai Duy
- Faculty of Materials Science and Technology, University of Science, HoChiMinh city 70000, Viet Nam; Vietnam National University (VNU), HoChiMinh city 70000, Viet Nam
| | - Hyungtak Seo
- Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea; Department of Materials Science and Engineering, Ajou University, Suwon 16499, Republic of Korea.
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Soylak M, Çoban AN, Ahmed HEH. Micro solid phase extraction of lead and cadmium using functionalized nanodiamonds@CuAl 2O 4@HKUST-1 nanocomposite for FAAS analysis in food and water samples. Food Chem 2024; 442:138426. [PMID: 38237291 DOI: 10.1016/j.foodchem.2024.138426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 02/15/2024]
Abstract
This study focuses on the development and application of a novel nanocomposite (functionalized nanodiamonds@CuAl2O4@HKUST-1)-based µ-SPE method for the sensitive and selective extraction of Pb and Cd from food and water samples. The technique offers high sensitivity and selectivity, allowing accurate measurement of these metals at trace levels. The detection limit is 0.031 µg kg-1 for Cd and 0.052 µg kg-1 for Pb, with a relative standard deviation of 1.7 % for Cd and 4.8 % for Pb. The method was successfully applied to real samples and efficiently quantified Pb and Cd in food and natural water samples. The highest concentrations were found in red lentils (0.274 µg kg-1 Pb) and fresh mint (0.197 µg kg-1Cd), but still below recommended limits set by FAO/WHO (300 µg kg-1 for Pb and 200 µg kg-1 for Cd). It promises to ensure food safety, monitor environmental contamination, and informs regulatory decisions to protect public health.
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Affiliation(s)
- Mustafa Soylak
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Technology Research & Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Turkey; Turkish Academy of Sciences (TUBA), Cankaya, Ankara, Turkey.
| | - Ayşe Nur Çoban
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Technology Research & Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Turkey
| | - Hassan Elzain Hassan Ahmed
- Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Sudan Atomic Energy Commission (SAEC) - Chemistry and Nuclear Physics Institute, Khartoum, Sudan; Sudan University of Science and Technology (SUST) - College of Science-Scientific Laboratories Department, Chemistry Section, Khartoum, Sudan
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Hassan AHA, Zeinhom MMA, Shaban M, Korany AM, Gamal A, Abdel-Atty NS, Al-Saeedi SI. Rapid and sensitive in situ detection of heavy metals in fish using enhanced Raman spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2024; 313:124082. [PMID: 38479227 DOI: 10.1016/j.saa.2024.124082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/31/2024] [Accepted: 02/22/2024] [Indexed: 04/02/2024]
Abstract
Heavy metals have been widely applied in industry, agriculture, and other fields because of their outstanding physics and chemistry properties. They are non-degradable even at low concentrations, causing irreversible harm to the human and other organisms. Therefore, it is of great significance to develop high accuracy and sensitivity as well as stable techniques for their detection. Raman scattering spectroscopy and atomic absorption spectrophotometer (AAS) were used parallelly to detect heavy metal ions such as Hg, Cd, and Pb of different concentrations in fish samples. The concentration of the heavy metals is varied from 5 ppb to 5 ppm. Despite the satisfactory recoveries of AAS, their drawbacks are imperative for an alternative technique. In Raman scattering spectroscopy, the intensities and areas of the characteristic peaks are increased with increasing the concentration of the heavy metals. For Hg concentration ≥ 1 ppm, a slight shift is observed in the peak position. The obtained values of peak intensity and peak area are modeled according to Elvoich, Pseudo-first order, Pseudo-second order, and asymptotic1 exponential model. The best modeling was obtained using the Elovich model followed by the asymptotic1 exponential model. The introduced Raman spectroscopy-based approach for on-site detection of trace heavy metal pollution in fish samples is rapid, low-cost, and simple to implement, increasing its visibility in food safety and industrial applications.
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Affiliation(s)
- Amal H A Hassan
- Food Safety & Technology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.
| | - Mohamed M A Zeinhom
- Food Safety & Technology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.
| | - Mohamed Shaban
- Department of Physics, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
| | - Ahmed M Korany
- Food Safety & Technology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Ahmed Gamal
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Nasser S Abdel-Atty
- Food Safety & Technology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Sameerah I Al-Saeedi
- Department of Chemistry, Collage of Science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh 11671, Saudi Arabia.
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Li X, He A, Cao Y, Yun J, Bao H, Yan X, Zhang X, Dong J, Kelly FJ, Mudway I. Exposure risks of lead and other metals to humans: A consideration of specific size fraction and methodology. J Hazard Mater 2024; 469:133549. [PMID: 38447362 DOI: 10.1016/j.jhazmat.2024.133549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 03/08/2024]
Abstract
Particle size is a critical influencing factor in assessing human exposure risk as fine particles are generally more hazardous than larger coarse particles. However, how particle composition influences human health risk is only poorly understood as different studies have different utilised different definitions and as a consequence there is no consensus. Here, with a new methodology taking insights of each size fraction load (%GSFload), metal bioaccessibility, we classify which specific particle size can reliably estimate the human exposure risk of lead and other metals. We then validate these by correlating the metals in each size fraction with those in human blood, hair, crop grain and different anthropogenic sources. Although increasing health risks are linked to metal concentration these increase as particle size decrease, the adjusted-risk for each size fraction differs when %GSFload is introduced to the risk assessment program. When using a single size fraction (250-50 µm, 50-5 µm, 5-1 µm, and < 1 µm) for comparison, the risk may be either over- or under-estimated. However, by considering bulk and adjusting the risk, it would be possible to obtain results that are closer to the real scenarios, which have been validated through human responses and evidence from crops. Fine particle size fractions (< 5 µm) bearing the mineral crystalline or aggregates (CaCO3, Fe3O4, Fe2O3, CaHPO4, Pb5(PO4)3Cl) alter the accumulation, chemical speciation, and fate of metals in soil/dust/sediment from the different sources. Loaded lead in the size fraction of < 50 µm has a significantly higher positive association with the risk-receptor biomarkers (BLLs, Hair Pb, Corn Pb, and Crop Pb) than other size fractions (bulk and 50-250 µm). Thus, we conclude that the < 50 µm fraction would be likely to be recommended as a reliable fraction to include in a risk assessment program. This methodology acts as a valuable instrument for future research undertakings, highlighting the importance of choosing suitable size fractions and attaining improved accuracy in risk assessment results that can be effectively compared.
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Affiliation(s)
- Xiaoping Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK.
| | - Ana He
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Yuhan Cao
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Jiang Yun
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Hongxiang Bao
- Frontier Medical Service Training Brigade, Army Medical University, Hutubi 831200, PR China
| | - Xiangyang Yan
- International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China
| | - Xu Zhang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Jie Dong
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Frank J Kelly
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
| | - Ian Mudway
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
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Dong J, Li X, Kelly FJ, Mudway I. Lead exposure in Chinese children: Urbanization lowers children's blood lead levels (BLLs). Sci Total Environ 2024; 923:170910. [PMID: 38354817 DOI: 10.1016/j.scitotenv.2024.170910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/16/2024]
Abstract
Lead is a toxic metal that can pose a huge threat to children's health. China has experienced rapid urbanization since the reform in 1978; however, there has been no examination of the potential influence of this urbanization on children's blood lead levels (BLLs). This study is the initial investigation to explore the correlation between urbanization and BLLs in Chinese children. Five windows of time are considered: pre-2000, 2001-2005, 2006-2010, 2011-2015 and 2016-2021. The results show that urbanization affected lead distribution in urban soil and agricultural soil during the above periods, especially in northern China. The higher non-carcinogenic risk of lead for children is consistent with the lead pollution in soil (3 < Igeo ≤ 4). Urban children's BLLs are slightly higher than those of rural children in 2001-2010, but rural children's BLLs in 2011-2021 are higher than those of urban children during China's urbanization. The areas of rural decline and the areas of urban growth increased across all the window periods. However, the BLLs decrease in all rural and urban areas during all window periods, especially in urban areas. Children's BLLs have a significantly negative correlation with urban areas (p < 0.01). Therefore, China's urbanization has a significant effect on the decrease in children's BLLs. The significance of this study is to provide a fresh perspective and innovative strategy for policymaking in order to reduce children's BLLs and prevent lead exposure. This can be achieved by transforming their external living environment from a rural lifestyle to an urban one, while also ensuring access to well education and maintaining a balanced nutrient intake.
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Affiliation(s)
- Jie Dong
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Xiaoping Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK.
| | - Frank J Kelly
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
| | - Ian Mudway
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
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Chirinos-Peinado D, Castro-Bedriñana J, Ríos-Ríos E, Castro-Chirinos G, Quispe-Poma Y. Lead, Cadmium, and Arsenic in Raw Milk Produced in the Vicinity of a Mini Mineral Concentrator in the Central Andes and Health Risk. Biol Trace Elem Res 2024; 202:2376-2390. [PMID: 37713056 PMCID: PMC10954997 DOI: 10.1007/s12011-023-03838-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 08/30/2023] [Indexed: 09/16/2023]
Abstract
The bovine milk quality, safety, and security are of great concern mainly due to the dispersion of toxic substances from various anthropogenic activities and poor practices for organophosphates in agriculture use. This study evaluated the potential risk to human health from lead (Pb), cadmium (Cd), and arsenic (As) from the consumption of milk produced in an area of the Central Andes valley near a mini mineral concentrator by estimating the weekly intake (WI), dietary risk quotient (DRC), hazard quotient (THQ), and hazard index (HI) for the Peruvian population aged 2 to 85 years, in three scenarios of milk consumption by age (minimum, average, and maximum). Toxic element quantification was performed by flame atomic absorption spectrometry following standardized procedures. The mean amount ± standard deviation of Pb, Cd, and As in soils was 292±60.90, 3.54±1.58, and 5.60±2.20 mg/kg, the order of importance being Pb>As>Cd. The contents of Pb, Cd, and As in pastures were 23.17±10.02, 0.25±0.57, and 0.06±0.09 mg/kg, being from highest to lowest Pb>Cd>As. The means of Pb, Cd, and As content in 19 milk samples were 0.029±0.022, 0.007±0.006, and 0.010±0.004 mg/kg. Pb and Cd exceeded the maximum permissible limits (MPL), and the As was below the MPL. At all ages and milk consumption levels, the WI for Pb and Cd were below the estimated tolerable intake (TWI). The WI for As in < 19 years was higher than the TWI. The DRC for Pb and Cd at all three milk intake levels and all ages was < 1, and for As, it was > 1 in < 19 years, being the risk group. The TQH and HI for Pb and Cd were also > 1, signifying no health risk, and for As, the values were > 1 in < 11 years. Our results are valuable for preventing adverse health impacts from safe and innocuous milk consumption.
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Affiliation(s)
- Doris Chirinos-Peinado
- Research Center in Food and Nutritional Security, Universidad Nacional del Centro del Perú, Huancayo, Junín, Perú
| | - Jorge Castro-Bedriñana
- Research Center in Food and Nutritional Security, Universidad Nacional del Centro del Perú, Huancayo, Junín, Perú.
| | - Elva Ríos-Ríos
- Department of Chemistry, Science Faculty, Universidad Nacional Agraria La Molina, Lima, Perú
| | | | - Yubaly Quispe-Poma
- Zootechnical Faculty, Universidad Nacional del Centro del Perú, Huancayo, Junín, Perú
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Tian C, Qiu Y, Zhao Y, Fu L, Xia D, Ying J. Selenium protects against Pb-induced renal oxidative injury in weaning rats and human renal tubular epithelial cells through activating NRF2. J Trace Elem Med Biol 2024; 83:127420. [PMID: 38432121 DOI: 10.1016/j.jtemb.2024.127420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Lead (Pb) poisoning posing a crucial health risk, especially among children, causing devastating damage not only to brain development, but also to kidney function. Thus, an urgent need persists to identify highly effective, safe, and low-toxicity drugs for the treatment of Pb poisoning. The present study focused on exploring the protective effects of Se on Pb-induced nephrotoxicity in weaning rats and human renal tubular epithelial cells, and investigated the possible mechanisms. METHODS Forty weaning rats were randomly divided into four groups in vivo: control, Pb-exposed, Pb+Se and Se. Serum creatinine (Cr), urea nitrogen (BUN) and hematoxylin and eosin (H&E) staining were performed to evaluate renal function. The activities of antioxidant enzymes in the kidney tissue were determined. In vitro experiments were performed using human renal tubular epithelial cells (HK-2 cells). The cytotoxicity of Pb and Se was detected by 3-(4,5-dimethylthiazol-2yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Inverted fluorescence microscope was used to investigate cell morphological changes and the fluorescence intensity of reactive oxygen species (ROS). The oxidative stress parameters were measured by a multi-detection reader. Nuclear factor-erythroid-2-related factor (NRF2) signaling pathways were measured by Western blot and reverse transcription polymerase chain reaction (RT-PCR) in HK-2 cells. RESULTS We found that Se alleviated Pb-induced kidney injury by relieving oxidative stress and reducing the inflammatory index. Se significantly increased the activity of the antioxidant enzymes glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT), whereas it decreased the excessive release of malondialdehyde (MDA) in the kidneys of weaning rats and HK-2 cells. Additionally, Se enhanced the antioxidant defense systems via activating the NRF2 transcription factor, thereby promoting the to downstream expression of heme oxygenase 1. Furthermore, genes encoding glutamate-cysteine ligase synthetase catalytic (GCLC), glutamate-cysteine ligase synthetase modifier (GCLM) and NADPH quinone oxidoreductase 1 (NQO1), downstream targets of NRF2, formed a positive feedback loop with NRF2 during oxidative stress responses. The MTT assay results revealed a significant decrease in cell viability with Se treatment, and the cytoprotective role of Se was blocked upon knockdown of NRF2 by small interfering RNA (siRNA). MDA activity results also showed that NRF2 knockdown inhibited the NRF2-dependent transcriptional activity of Se. CONCLUSIONS Our findings demonstrate that Se ameliorated Pb-induced nephrotoxicity by reducing oxidative stress both in vivo and in vitro. The molecular mechanism underlying Se's action in Pb-induced kidney injury is related to the activation of the NRF2 transcription factor and the activity of antioxidant enzymes, ultimately suppressing ROS accumulation.
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Affiliation(s)
- Chongmei Tian
- Department of Pharmacy, Shaoxing Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Shaoxing 312000, China
| | - Yu Qiu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yaping Zhao
- Department of Pharmacy, Shaoxing Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Shaoxing 312000, China
| | - Liping Fu
- Department of Pharmacy, Shaoxing Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Shaoxing 312000, China
| | - Daozong Xia
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Junjie Ying
- Department of Urology, the Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China.
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Şahin S, Azarkan SY, Türksoy VA. Evaluation of the effect of cannabidiol on the THLE-2 liver cell line exposed to lead. Sci Total Environ 2024; 923:170901. [PMID: 38401722 DOI: 10.1016/j.scitotenv.2024.170901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/26/2024]
Abstract
Environmental and soil pollution increase the likelihood of human exposure to toxic metals. Therefore, there is a need for new methods and substances to protect individuals against the harmful effects caused by toxic metals. The study is the first to aim at determining the protective effect of cannabidiol (CBD) against oxidative stress and inflammation induced by toxic metal exposure in Transformed Human Liver Epithelial-2 (THLE-2) cell lines representing healthy liver cells. The IC50 value was determined by exposing THLE-2 human liver healthy cell line to different molarities of lead (Pb) using the XTT kit. The protective efficacy of CBD was assessed by adding 5 μM CBD in addition to the Pb doses determined at IC50 levels to the Pb groups created in cell lines. The levels of GSH, MDA, MPO, CAT, TNF-α, IL-1β, and IL-6 in cell lines were determined using ELISA kits. The inhibition of toxic metal entry into the cells by CBD was assessed through ICP-MS analysis. The IC50 value for Pb was determined as 10 μM in 2D cell lines and 25 μM in 3D cell lines. It was observed that the application of 5 μM concentration of CBD, along with the determined IC50 doses for Pb, increased the cell proliferation rate. Furthermore, the decrease in GSH and CAT levels and the increase in MDA, MPO, TNF-α, IL-1β, and IL-6 levels observed in cell lines treated only with Pb were reversed with the application of CBD. The ICP-MS analysis revealed that CBD reduced the cellular uptake of Pb. The reversal of oxidative stress and inflammation induced by Pb, the increase in cell proliferation, and the reduction in the cellular uptake of toxic metals by CBD can be considered as strong evidence for the protective use of CBD in Pb exposures.
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Affiliation(s)
- Serkan Şahin
- Department of Medical Pharmacology, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey.
| | - Serap Yalçın Azarkan
- Department of Medical Pharmacology, Faculty of Medicine, Kırşehir Ahi Evran University, Kırşehir, Turkey.
| | - Vugar Ali Türksoy
- Department of Public Health, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey.
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Deng B, Luo J, Xu C, Zhang X, Li J, Yuan Q, Cao H. Biotransformation of Pb and As from sewage sludge and food waste by black soldier fly larvae: Migration mechanism of bacterial community and metalloregulatory protein scales. Water Res 2024; 254:121405. [PMID: 38447376 DOI: 10.1016/j.watres.2024.121405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/29/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
The accumulation and transformation of lead (Pb) and arsenic (As) during the digestion of sewage sludge (SS) by black soldier fly larvae (BSFL) remain unclear. In this study, we used 16 s rRNA and metagenomic sequencing techniques to investigate the correlation between the microbial community, metalloregulatory proteins (MRPs), and Pb and As migration and transformation. During the 15-day test period, BSFL were able to absorb 34-48 % of Pb and 32-45 % of As into their body. Changes in bacterial community abundance, upregulation of MRPs, and redundancy analysis (RDA) results confirmed that ZntA, EfeO, CadC, ArsR, ArsB, ArsD, and ArsA play major roles in the adsorption and stabilization of Pb and As, which is mainly due to the high contribution rates of Lactobacillus (48-59 %) and Enterococcus (21-23 %). Owing to the redox reaction, the regulation of the MRPs, and the change in pH, the Pb and As in the BSFL residue were mainly the residual fraction (F4). The RDA results showed that Lactobacillus and L.koreensis could significantly (P < 0.01) reduce the reducible fraction (F2) and F4 of Pb, whereas Firmicutes and L.fermentum can significantly (P < 0.05) promote the transformation of As to F4, thus realizing the passivation Pb and As. This study contributes to the understanding of Pb and As in SS adsorbed by BSFL and provides important insights into the factors that arise during the BSFL-mediated migration of Pb and As.
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Affiliation(s)
- Bo Deng
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Junlong Luo
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Chao Xu
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Xin Zhang
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Jun Li
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Qiaoxia Yuan
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
| | - Hongliang Cao
- Key Laboratory of Smart Farming for Agricultural Animals, College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Aquaculture Facilities Engineering, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China; Technology & Equipment Center for carbon Neutrality in Agriculture, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
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10
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Sliwa K, Viljoen CA, Stewart S, Miller MR, Prabhakaran D, Kumar RK, Thienemann F, Piniero D, Prabhakaran P, Narula J, Pinto F. Cardiovascular disease in low- and middle-income countries associated with environmental factors. Eur J Prev Cardiol 2024; 31:688-697. [PMID: 38175939 DOI: 10.1093/eurjpc/zwad388] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
There is a growing recognition that the profound environmental changes that have occurred over the past century pose threats to human health. Many of these environmental factors, including air pollution, noise pollution, as well as exposure to metals such as arsenic, cadmium, lead, and other metals, are particularly detrimental to the cardiovascular health of people living in low-to-middle income countries (LMICs). Low-to-middle income countries are likely to be disproportionally burdened by cardiovascular diseases provoked by environmental factors. Moreover, they have the least capacity to address the core drivers and consequences of this phenomenon. This review summarizes the impact of environmental factors such as climate change, air pollution, and metal exposure on the cardiovascular system, and how these specifically affect people living in LMICs. It also outlines how behaviour changes and interventions that reduce environmental pollution would have significant effects on the cardiovascular health of those from LMICs, and globally.
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Affiliation(s)
- Karen Sliwa
- Cape Heart Institute, Chris Barnard Building, University of Cape Town, Faculty of Health Sciences, Cnr Anzio Road and Falmouth Road, 7925, Observatory, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Main Road, 7925, Observatory, Cape Town, South Africa
| | - Charle André Viljoen
- Cape Heart Institute, Chris Barnard Building, University of Cape Town, Faculty of Health Sciences, Cnr Anzio Road and Falmouth Road, 7925, Observatory, Cape Town, South Africa
- Division of Cardiology, Department of Medicine, Groote Schuur Hospital, Main Road, 7925, Observatory, Cape Town, South Africa
| | - Simon Stewart
- Institute for Health Research, University of Notre Dame Australia, 32 Mouat St, Fremantle, Western Australia, 6160, Australia
- Eduardo Mondlane University, 3435 Avenida Julius Nyerere, Maputo, Mozambique
| | - Mark R Miller
- Centre for Cardiovascular Science, University of Edinburgh, Queens Medical Research Institute, 47 Little France Crescent, Edinburgh, EH4 3RL, UK
| | - Dorairaj Prabhakaran
- Centre for Chronic Disease Control, C1/52, Safdarjung Development Area, New Delhi, 110016, India
| | - Raman Krishna Kumar
- Department of Pediatric Cardiology, Amrita Institute of Medical Sciences and Research Centre, Ponekkara PO, Cochin 682041, Kerala, India
| | - Friedrich Thienemann
- Cape Heart Institute, Chris Barnard Building, University of Cape Town, Faculty of Health Sciences, Cnr Anzio Road and Falmouth Road, 7925, Observatory, Cape Town, South Africa
- Department of Internal Medicine, University Hospital Zurich, University of Zurich, 100 Rämistrasse, 8091 Zurich, Switzerland
| | - Daniel Piniero
- Facultad de Medicina, Universidad de Buenos Aires, Arenales 2463, Buenos Aires, C1124AAN, Argentina
| | - Poornima Prabhakaran
- Centre for Chronic Disease Control, C1/52, Safdarjung Development Area, New Delhi, 110016, India
| | - Jagat Narula
- Department of Cardiology, McGovern Medical School, University of Texas Health, 7000 Fannin St, Houston, TX 77030, USA
| | - Fausto Pinto
- Department of Cardiology, Faculty of Medicine, University of Lisbon, Av. Prof. Egas Moniz, 1649-028, Lisboa, Portugal
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Ghumman ASM, Shamsuddin R, Qomariyah L, Lim JW, Sami A, Ayoub M. Heavy metal sequestration from wastewater by metal-organic frameworks: a state-of-the-art review of recent progress. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-33317-7. [PMID: 38622423 DOI: 10.1007/s11356-024-33317-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
Metal-organic frameworks (MOFs) have emerged as highly promising adsorbents for removing heavy metals from wastewater due to their tunable structures, high surface areas, and exceptional adsorption capacities. This review meticulously examines and summarizes recent advancements in producing and utilizing MOF-based adsorbents for sequestering heavy metal ions from water. It begins by outlining and contrasting commonly employed methods for synthesizing MOFs, such as solvothermal, microwave, electrochemical, ultrasonic, and mechanochemical. Rather than delving into the specifics of adsorption process parameters, the focus shifts to analyzing the adsorption capabilities and underlying mechanisms against critical metal(loid) ions like chromium, arsenic, lead, cadmium, and mercury under various environmental conditions. Additionally, this article discusses strategies to optimize MOF performance, scale-up production, and address environmental implications. The comprehensive review aims to enhance the understanding of MOF-based adsorption for heavy metal remediation and stimulate further research in this critical field. In brief, this review article presents a comprehensive overview of the contemporary information on MOFs as an effective adsorbent and the challenges being faced by these adsorbents for heavy metal mitigation (including stability, cost, environmental issues, and optimization), targeting to develop a vital reference for future MOF research.
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Affiliation(s)
- Ali Shaan Manzoor Ghumman
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Rashid Shamsuddin
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia.
- Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, 42311, Madinah, Kingdom of Saudi Arabia.
| | - Lailatul Qomariyah
- Department of Industrial Chemical Engineering, Institut Teknologi Sepuluh Nopember, 60111, Surabaya, Surabaya, Indonesia
| | - Jun Wei Lim
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610 , Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105, Chennai, India
| | - Abdul Sami
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Muhammad Ayoub
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
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12
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Sahu M, Ganguly M, Sharma P. Highly fluorescent quinone-capped silver hydrosol for environmental remediation and sensing applications. Spectrochim Acta A Mol Biomol Spectrosc 2024; 311:123981. [PMID: 38340445 DOI: 10.1016/j.saa.2024.123981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
A metal-enhanced fluorescence was achieved from in situ-generated Ag0 nanoparticles in the proximity of 2-hydroxy benzaldehyde (2HB). Such nanoparticles eliminated methyl blue (MB) dye from water exclusively in the presence of Zn2+ and were proven to be an efficient adsorbent for environmental remediation (maximum uptake capacity 1065 mg·g-1). Ag was zero valent in the absorbent, while Zn2+ was in Zn(OH)2 form. Fe3+ brought back MB in the aqueous medium due to the strong interaction of MB with Fe3+ and the regeneration of blue color helped to design a selective and sensitive Fe3+ sensing platform colorimetrically (linear detection range 10-4-10-6 M; linear detection limit 10-6 M). The silver nanoparticle-induced metal-enhanced fluorescence was quenched efficiently with MB. Pb2+ restored the quenched fluorescence by removing MB from the proximity of the metalized surface of silver, and Pb2+ sensing was performed fluorometrically (linear detection range; 10-5-5 × 10-8 M limit of detection 5 × 10-8 M). Iron and lead were also estimated in a variety of natural water sources, including rainfall, drinking water from taps, and water from the Ganga River via spiking method.
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Affiliation(s)
- Mamta Sahu
- Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, Rajasthan, India
| | - Mainak Ganguly
- Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, Rajasthan, India.
| | - Priyanka Sharma
- Department of Chemistry, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, Rajasthan, India
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Karimi H, Mahdavi S, Moghaddam SS, Abbasi-Kangevari M, Soleimani Z, Esfahani Z, Masinaei M, Fateh SM, Golestani A, Dilmaghani-Marand A, Kompani F, Rezaei N, Ghasemi E, Larijani B, Farzadfar F. Unveiling the lead exposure attributed burden in Iran from 1990 to 2019 through the lens of the Global Burden of Disease study 2019. Sci Rep 2024; 14:8688. [PMID: 38622232 PMCID: PMC11018826 DOI: 10.1038/s41598-024-58823-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 04/03/2024] [Indexed: 04/17/2024] Open
Abstract
This study aimed to investigate the estimated burden attributed to lead exposure (LE), at the national and subnational levels from 1990 to 2019 in Iran. The burden attributed to LE was determined through the estimation of deaths, disability-adjusted life years (DALYs), years of life lost (YLLs) and years lived with disability (YLDs) using the comparative risk assessment method of Global Burden of Disease (GBD) study presenting as age-standardized per 100,000 person year (PY) with 95% uncertainty intervals (95% UI). Furthermore, the burden of each disease were recorded independently. Eventually, the age-standardized YLLs, DALYs, deaths and YLDs rates attributed to LE demonstrated a decrease of 50.7%, 48.9%, 38.0%, and 36.4%, respectively, from 1990 to 2019. The most important causes of LE burden are divided into two acute and chronic categories: acute, mainly causes mental disorders (DALYs rate of 36.0 in 2019), and chronic, results in cardiovascular diseases (CVDs) (DALYs rate of 391.8) and chronic kidney diseases (CKDs) (DALYs rate of 26.6), with CVDs bearing the most significant burden. At the sub-national level, a decrease in burden was evident in most provinces; moreover, low and low-middle SDI provinces born the highest burden. The burden increased mainly by ageing and was higher in males than females. It was concluded that although the overall decrease in the burden; still it is high, especially in low and low-middle SDI provinces, in advanced ages and in males. Among IDID, CKDs and CVDs that are the most important causes of LE-attributed burden in Iran; CVDs bear the highest burden.
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Affiliation(s)
- Hanie Karimi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Mahdavi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Alborz University of Medical Sciences, Alborz, Iran
| | - Sahar Saeedi Moghaddam
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Kiel Institute for the World Economy, Kiel, Germany
| | - Mohsen Abbasi-Kangevari
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Soleimani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Esfahani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Biostatistics, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Masoud Masinaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Mohammadi Fateh
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Golestani
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Arezou Dilmaghani-Marand
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Kompani
- Division of Hematology and Oncology, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Negar Rezaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Erfan Ghasemi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Farzadfar
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Zhou X, Zhao C, Sun J, Cheng J, Xu M. Determination of lead content in oilseed rape leaves in silicon-free and silicon environments based on deep transfer learning and fluorescence hyperspectral imaging. Spectrochim Acta A Mol Biomol Spectrosc 2024; 311:123991. [PMID: 38330763 DOI: 10.1016/j.saa.2024.123991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
The ability of fluorescence hyperspectral imaging to predict heavy metal lead (Pb) concentration in oilseed rape leaves was studied in silicon-free and silicon environments. Further, the transfer stacked convolution auto-encoder (T-SCAE) algorithm was proposed based on the stacked convolution auto-encoder (SCAE) algorithm. Fluorescence hyperspectral images of oilseed rape leaves under different Pb stress contents were obtained in the silicon-free and silicon environments. The entire region of oilseed rape leaves was chosen as the region of interest (ROI) to obtain fluorescence spectra. First of all, standard normalized variable (SNV) algorithm was implemented as the preferred preprocessing method, and the fluorescence spectral data processed by SNV was utilized for further analysis. Further, SCAE was used to reduce the dimensionality of the best pre-processed spectral data, and compared with the traditional dimensionality reduction algorithm. Finally, the optimal SCAE deep learning network was transferred to obtain the T-SCAE model to verify the transferability between the deep learning models in silicon-free and silicon environments. The results show that the SVR model based on the depth features extracted by SCAE has the best performance in predicting different Pb concentrations in silicon-free or silicon environments, and the coefficient of determination (Rp2), root mean square error (RMSEP) and residual predictive deviation (RPD) of prediction set in silicon-free or silicon environments were 0.9374, 0.02071 mg/kg and 3.268, and 0.9416, 0.01898 mg/kg and 3.316, respectively. Moreover, the SVR model based on the depth feature extracted by T-SCAE has the best performance in predicting different Pb concentrations in silicon-free and silicon environments, and the Rp2, RMSEP and RPD of the optimal prediction set were 0.9385, 0.02017 mg/kg and 3.291, respectively. The combination of hyperspectral fluorescence imaging and deep transfer learning algorithm can effectively detect different Pb concentrations in oilseed rape leaves in both non-silicon environment and silicon environment.
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Affiliation(s)
- Xin Zhou
- School of Electrical and Information Engineering of Jiangsu University, Zhenjiang 212013, China.
| | - Chunjiang Zhao
- School of Electrical and Information Engineering of Jiangsu University, Zhenjiang 212013, China; National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China; National Engineering Laboratory for Agri-product Quality Traceability, Beijing 100097, China
| | - Jun Sun
- School of Electrical and Information Engineering of Jiangsu University, Zhenjiang 212013, China
| | - Jiehong Cheng
- School of Electrical and Information Engineering of Jiangsu University, Zhenjiang 212013, China
| | - Min Xu
- School of Electrical and Information Engineering of Jiangsu University, Zhenjiang 212013, China
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Lee A, Ko J, Choi G, Choi K, Choi S, Kim HJ, Moon HB, Kim S, Park J. Homemade weaning foods as a source of lead and mercury exposure in Korean infants - A dietary risk assessment study. Sci Total Environ 2024; 920:170766. [PMID: 38350572 DOI: 10.1016/j.scitotenv.2024.170766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 01/22/2024] [Accepted: 02/04/2024] [Indexed: 02/15/2024]
Abstract
Lead (Pb) and mercury (Hg) are neurodevelopmental toxicants that pose risks to cognitive and behavioral health. Given early childhood's vulnerability to these metals, understanding their sources and pathways of exposure during infancy is crucial for public health. During the weaning process, infants may be exposed to metals through the baby food they consume. We aimed to assess metal exposure through homemade weaning foods by analyzing 288 samples consumed by 157 Korean infants aged 6-, 9-, 12-, 15-, and 24-27 months. Pb was detected in 65 % of samples, with levels reaching up to 169 ng/g. Notably, 58 % exceeded the Maximum Level (ML) of 10 ng/g, with a median concentration of 14.7 ng/g fresh weight. Total Hg was found in 88 % of samples, with a median concentration of 4.56 ng/g fresh weight. Estimated median daily intakes of Pb and Hg were 0.29 and 0.09 μg/kg/d, respectively. Considering a benchmark dose for Pb (0.5 μg/kg/d by EFSA), 94 % (the margin of exposure <10) of all age groups was estimated to have a potential health concern associated with homemade baby food consumption. For Hg, only 6 % exceeded a hazard quotients of 1 compared to a provisional tolerable weekly intake for Hg (4 μg/kg/week by WHO). This study marks the first direct assessment of daily Pb and Hg intake through homemade baby food among Korean infants. Our findings underscore the urgent need for heightened awareness regarding metal exposure through homemade baby food.
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Affiliation(s)
- Aram Lee
- Department of Environmental Health Science, Soonchunhyang University, Asan, Republic of Korea
| | - Jieun Ko
- Department of Environmental Health Science, Soonchunhyang University, Asan, Republic of Korea
| | - Gyuyeon Choi
- Department of Obstetrics and Gynecology, Soonchunhyang University Hospital, Seoul, Republic of Korea
| | - Kyungho Choi
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Sooran Choi
- College of Medicine, Inha University, Incheon, Republic of Korea
| | - Hai-Joong Kim
- College of Medicine, Korea University, Ansan, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea
| | - Sungkyoon Kim
- Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Jeongim Park
- Department of Environmental Health Science, Soonchunhyang University, Asan, Republic of Korea.
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Strieker S, Radon K, Forster F, Örnek ÖK, Wengenroth L, Schmotz W, Sonnemann F, Hoopmann M, Hepp M, Nowak D, Weinmann T, Rakete S. Biomonitoring of lead in blood of children living in a former mining area in Lower Saxony, Germany. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-32719-x. [PMID: 38594562 DOI: 10.1007/s11356-024-32719-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/26/2024] [Indexed: 04/11/2024]
Abstract
Environmental exposure to lead substantially decreased over the past decades. However, soil of former mining areas still contains high lead levels. We therefore performed a biomonitoring study among children living in two former mining communities in Lower Saxony, Germany. In these communities, soil contains lead levels of 1000 to 30,000 mg/kg. Overall, 75 children (6-10 years of age) attending the two primary schools of the study area took part in the study. Parents completed a short questionnaire on sociodemographics, and children provided capillary whole blood samples. We analysed lead using inductively coupled plasma tandem mass spectrometer. We compared the results to current German (20 μg/l for boys, 15 μg/l for girls) and US (35 μg/l) reference values. Potential associations between questionnaire information and lead results were tested using lead as continuous outcome and using lead dichotomized at the reference values. Finally, we analysed spatial patterns of elevated biomonitoring results. Of all children, 48% exceeded the German reference values for lead (5% expected) and 8% the US reference value (2.5% expected). Children 6-8 years of age were more likely to exceed German reference values (63%) than 9-10 year old children were (32%; pFisher = 0.01). No other questionnaire information was statistically significantly associated with biomonitoring results. Additionally, we did not find any indication of spatial clustering. In conclusion, we observed elevated blood lead levels in primary school children living in a former mining area. In the next step, exposure pathways need to be identified to implement effective public health measures.
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Affiliation(s)
- Sonja Strieker
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
| | - Katja Radon
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
| | - Felix Forster
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
| | - Özlem Köseoglu Örnek
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
- Department of Nursing Science, Universität Witten/Herdecke, Witten, Germany
| | - Laura Wengenroth
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany.
| | - Walter Schmotz
- District of Goslar, Department of Construction & Environment-Soil Protection and Waste Monitoring, Goslar, Germany
| | - Finn Sonnemann
- District of Goslar, Department of Construction & Environment-Soil Protection and Waste Monitoring, Goslar, Germany
| | | | - Martin Hepp
- District of Goslar, Department of Public Health Services, Goslar, Germany
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
| | - Tobias Weinmann
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
| | - Stefan Rakete
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany
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17
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Püschel P, Agbeko KM, Amoabeng-Nti AA, Arko-Mensah J, Bertram J, Fobil JN, Waldschmidt S, Löhndorf K, Schettgen T, Lakemeyer M, Morrison A, Küpper T. Lead exposure by E-waste disposal and recycling in Agbogbloshie, Ghana. Int J Hyg Environ Health 2024; 259:114375. [PMID: 38604105 DOI: 10.1016/j.ijheh.2024.114375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/30/2023] [Accepted: 03/29/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Agbogbloshie in Ghana is the world's biggest dumpsite for the informal recycling of electronic waste (e-waste). E-waste is dismantled by rudimentary methods without personal or environmental protection. Workers and occupants are exposed to lead. There are no data so far about the extent and the consequences. We therefore analyzed blood lead levels (BLL) and creatinine levels (CL). METHODS Full blood samples and basic data (i.e. age, job, length of stay) were collected from dumpsite volunteers. BLL were measured by atomic absorption spectrometry; CL were assessed using the standard clinical laboratory procedures of Aachen Technical University. European BLL reference values were used as Ghana lacks its own. Statistical analysis was by non-parametric tests (Mann-Whitney U test), with p < 0.05. RESULTS Participants of both sexes (n = 327; 12-68 years; median age 23 years) were assessed. Most workers were aged <30 years. The collective's BLL was in pathological range for 77.7%; 14% had a BLL >10.0 μg/dl with symptoms consistent with high lead exposure including severe (6.5%) and intermediate (39%) renal disorder. BLL above 15.0 μg/dl were found in 5.9% of all workers which is the German threshold for those working with lead. Elevated CL in a pathological range were found in 254 participants. This is problematic as 75% of the lead entering the body is excreted via urine. CONCLUSION Most of our volunteers had pathological BLL and CL. Preventive strategies are necessary to reduce health risks, particularly for vulnerable populations (i.e. children, pregnant women).
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Affiliation(s)
- P Püschel
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany
| | - K M Agbeko
- University of Ghana School of Public Health, Legon, Accra, Ghana
| | - A A Amoabeng-Nti
- University of Ghana School of Public Health, Legon, Accra, Ghana
| | - J Arko-Mensah
- University of Ghana School of Public Health, Legon, Accra, Ghana
| | - J Bertram
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany
| | - J N Fobil
- University of Ghana School of Public Health, Legon, Accra, Ghana
| | - S Waldschmidt
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany
| | - K Löhndorf
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany
| | - T Schettgen
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany
| | - M Lakemeyer
- Lead Works Berzelius Stolberg GmbH, Stolberg, Germany
| | - A Morrison
- Royal Free London NHS Foundation Trust, London, United Kingdom
| | - T Küpper
- Institute of Occupational and Social Medicine, RWTH Aachen Technical University, Aachen, Germany.
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18
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Zhang Y, Fu H, Chen X, Shi S, Liu N, Tang C, Hu X. Surface wettability control and electron transport regulation in zerovalent iron for enhanced removal of emerging polystyrene microplastics-heavy metal contaminants. Water Res 2024; 256:121602. [PMID: 38621315 DOI: 10.1016/j.watres.2024.121602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
Emerging microplastics-heavy metal (MPs-HM) contaminants in wastewaters pose an emerging health and environmental risk due to their persistence and increasing ecological risks (e.g., "Trojan horse" effect). Hence, removing MPs in solution and preventing secondary releases of HM has become a key challenge when tackling with MPs pollution. Leveraging the hydrophobic nature of MPs and the electron transfer efficiency from Fe0 to HM, we demonstrate an alkylated and sulfidated nanoscale zerovalent iron (AS-nZVI) featuring a delicate "core-shell-hydrophobic film" nanostructure. Exemplified by polystyrene (PS) MPs-Pb(II) removal, the three nanocomponents offer synergistic functions for the rapid separation of MPs, as well as the reduction and stabilization of Pb(II). The outmost hydrophobic film of AS-nZVI greatly improves the anticorrosion performance of nanoscale zerovalent iron and the enrichment abilities of hydrophilic MPs, achieving a maximum removal capacity of MPs to 2725.87 mgMPs·gFe-1. This MPs enrichment promotes the subsequent reductive removal of Pb(II) through the electron transfer from the iron core of AS-nZVI to Pb(II), a process further strengthened by the introduced sulfur. When considering the inevitable aging of MPs in wastewaters due to mechanical wear or microbial degradation, our study concurrently examines the efficiencies and behaviors of AS-nZVI in removing virgin-MPs-Pb(II) and aged-MPs-Pb(II). The batch results reveal that AS-nZVI has an exceptional ability to remove above 99.6 % Pb(II) for all reaction systems. Overall, this work marks a pioneering effort in highlighting the importance of MPs-toxin combinations in dealing with MPs contamination and in demonstrating the utility of nZVI techniques for MPs-contaminated water purification.
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Affiliation(s)
- Yufei Zhang
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Haoyang Fu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xi Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Shuaiyi Shi
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Nuo Liu
- Shanghai Collaborative Innovation Centre for WEEE Recycling, School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209, PR China
| | - Chenliu Tang
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Xiang Hu
- Research Group of Water Pollution Control and Water Reclamation, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
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19
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Pereira EC, Piai KDA, Salles FJ, Silva ASD, Olympio KPK. A comprehensive analysis of children's blood lead levels in Latin America and the Caribbean over the last eight years: Progress and recommendations. Sci Total Environ 2024; 928:172372. [PMID: 38604359 DOI: 10.1016/j.scitotenv.2024.172372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
In 2017 we published a review on blood lead levels (BLL) in children from Latin America and the Caribbean (LAC) for data available up to 14th of March 2014 and recommended the identification and control of "lead hot spots". In the present study, an evaluation of progress toward reducing BLL in the region was carried out. A systematic review of the latest literature on lead exposure in the LAC region held on the PubMed, Web of Science and LILACS databases (January 2014 to March 2022) was conducted using the PRISMA methodology. Only original papers published in peer-reviewed English, Spanish, or Portuguese journals were eligible. A total of 558 papers were retrieved, 77 of which met the selection criteria and 31 (40.25 %) were carried out in Mexico. The prevalence of children with BLL above 10 μg. dL-1 was 22.08 % in the previous review versus 6.78 % in the current study. In the present review, the prevalence of children with BLL above 5 μg. dL-1 was 29.62 %, and only one study reported a BLL prevalence rate between 3.3 and 5 μg. dL-1. The highest BLLs were associated with well-known sources or occupational exposures. The number of countries (n = 13) that published data on BLL in children was lower compared to the previous review (n = 16). Most studies were conducted in areas with known lead exposure sources, similar to the earlier review. The percentage of children at risk of lead poisoning in the region remains unknown because few studies have published data on environmental exposure levels and most samples were relatively small. The recommendation to identify and control sources of lead exposure was maintained, while further suggestions for establishing a systematic public health surveillance system for lead were proposed to help reduce the knowledge gap and inform public health policy-making in LAC.
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Affiliation(s)
- Elizeu Chiodi Pereira
- Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Kamila de Almeida Piai
- Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Fernanda Junqueira Salles
- Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Agnes Soares da Silva
- Departamento de Vigilância em Saúde Ambiental e Saúde do Trabalhador, Secretaria de Vigilância em Saúde e Ambiente, Ministério da Saúde, Brazil
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20
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Santoro N, Singer DM, Mulvey BK, Halasa K, Teutsch N, Shedleski A, Wood M. Neighborhood-scale lead (Pb) speciation in Akron, Ohio (USA) soils: primary sources, post-deposition diagenesis, and high concentrations of labile Pb. Environ Geochem Health 2024; 46:164. [PMID: 38592563 PMCID: PMC11003916 DOI: 10.1007/s10653-024-01954-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Lead (Pb) poses a significant risk to infants and children through exposure to contaminated soil and dust. However, there is a lack of information on Pb speciation and distribution at the neighborhood-scale. This work aimed to determine: (1) the distribution of acid-extractable (labile) Pb and other metals ([M]AE) in two neighborhoods in Akron, Ohio (USA) (Summit Lake and West Akron; n = 82 samples); and (2) Pb speciation and potential sources. Total metal concentration ([M]T) and [M]AE was strongly correlated for Pb and Zn (R2 of 0.66 and 0.55, respectively), corresponding to 35% and 33% acid-extractability. Lead and Zn exhibited a strong positive correlation with each other (R2 = 0.56 for MT and 0.68 for MAE). Three types of Pb-bearing phases were observed by electron microscopy: (1) galena (PbS)-like (5-10 μm); (2) paint chip residuals (10-20 μm); and (3) Pb-bearing Fe-oxides (20 μm). Isotope ratio values for PbAE were 1.159 to 1.245 for 206Pb/207Pb, and 1.999 to 2.098 for 208Pb/206Pb, and there was a statistically significant difference between the two neighborhoods (p = 0.010 for 206Pb/207Pb and p = 0.009 for 208Pb/206Pb). Paint and petrol are the dominant sources of Pb, with some from coal and fly ash. Lead speciation and distribution is variable and reflects a complex relationship between the input of primary sources and post-deposition transformations. This work highlights the importance of community science collaborations to expand the reach of soil sampling and establish areas most at risk based on neighborhood-dependent Pb speciation and distribution for targeted remediation.
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Affiliation(s)
- Nicholas Santoro
- Department of Earth Sciences, Kent State University, Kent, OH, 44242, USA
| | - David M Singer
- Department of Earth Sciences, Kent State University, Kent, OH, 44242, USA.
| | - Bridget K Mulvey
- School of Teaching, Learning and Curriculum Studies, Kent State University, Kent, OH, 44242, USA
| | | | - Nadya Teutsch
- Geochemistry and Environmental Geology Division, Geological Survey of Israel, 9692100, Jerusalem, Israel
| | - Allie Shedleski
- Department of Earth Sciences, Kent State University, Kent, OH, 44242, USA
| | - Madison Wood
- Department of Earth Sciences, Kent State University, Kent, OH, 44242, USA
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21
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Werner CS, Chapman M, Skaggs J, Rhodes OE, DeVault TL. Trace metal transfer to passerines inhabiting wastewater treatment wetlands. Sci Total Environ 2024; 927:172373. [PMID: 38604356 DOI: 10.1016/j.scitotenv.2024.172373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/26/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Wastewater treatment wetlands are cost-effective strategies for remediating trace metals in industrial effluent. However, biogeochemical exchange between wastewater treatment wetlands and adjacent environments provides opportunities for trace metals to cycle in surrounding ecosystems. The transfer of trace metals to wildlife inhabiting treatment wetlands must be considered when evaluating wetland success. Using passerine birds as bioindicators, we conducted a multi-tissue analysis to investigate the mobilization of zinc, copper, and lead derived from wastewater to terrestrial wildlife in treatment wetlands and surrounding habitat. In addition, we evaluate the strength of relationships between metal concentrations in non-lethal (blood and feathers) and lethal (muscle and liver) sample types for estimation of toxicity risk. From July 2020 to August 2021, 177 passerines of seven species were captured at two wetlands constructed to treat industrial wastewater and two reference wetlands in the coastal plain of South Carolina. Feather, blood, liver, and muscle samples from each bird were analyzed for fourteen metals using inductively coupled plasma mass spectrometry and direct mercury analysis. Passerines inhabiting wastewater treatment wetlands accumulated higher concentrations of zinc in liver, copper in blood, and lead in feathers than passerines in reference wetlands, but neither blood nor feather concentrations were correlated with internal tissue concentrations. Of all the detected metals, only mercury in the blood showed a strong predictive relationship with mercury in internal tissues. This study indicates that trace metals derived from wastewater are bioavailable and exported to terrestrial wildlife and that passerine biomonitoring is a valuable tool for assessing metal transfer from treatment wetlands. Regular blood sampling can reveal proximate trace metal exposure but cannot predict internal body burdens for most metals.
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Affiliation(s)
- Courtney S Werner
- Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA; Warnell School of Forestry and Natural Resources, University of Georgia, 180 E Green St, Athens, GA 30602, USA.
| | - Mary Chapman
- Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA
| | - Jonathon Skaggs
- Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA
| | - Olin E Rhodes
- Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA; Odum School of Ecology, University of Georgia, 140 E Green St, Athens, GA 30602, USA
| | - Travis L DeVault
- Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, USA; Warnell School of Forestry and Natural Resources, University of Georgia, 180 E Green St, Athens, GA 30602, USA
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22
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Feiler MO, Kulick ER, Sinclair K, Spiegel N, Habel S, Castello OG. Toxic metals and pediatric clinical immune dysfunction: A systematic review of the epidemiological evidence. Sci Total Environ 2024; 927:172303. [PMID: 38599398 DOI: 10.1016/j.scitotenv.2024.172303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Children are at high risk for exposure to toxic metals and are vulnerable to their effects. Significant research has been conducted evaluating the role of these metals on immune dysfunction, characterized by biologic and clinical outcomes. However, there are inconsistencies in these studies. The objective of the present review is to critically evaluate the existing literature on the association between toxic metals (lead, mercury, arsenic, and cadmium) and pediatric immune dysfunction. METHODS Seven databases (PubMed (NLM), Embase (Elsevier), CINAHL (Ebsco), Web of Science (Clarivate Analytics), ProQuest Public Health Database, and ProQuest Environmental Science Collection) were searched following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines in February 2024. Rayaan software identified duplicates and screened by title and abstract in a blinded and independent review process. The remaining full texts were reviewed for content and summarized. Exclusions during the title, abstract, and full-text reviews included: 1) not original research, 2) not epidemiology, 3) did not include toxic metals, 4) did not examine an immune health outcome, or 5) not pediatric (>18 years). This systematic review protocol followed the PRISMA guidelines. Rayaan was used to screen records using title and abstract by two blinded and independent reviewers. This process was repeated for full-text article screening selection. RESULTS The search criteria produced 7906 search results; 2456 duplicate articles were removed across search engines. In the final review, 79 studies were included which evaluated the association between toxic metals and outcomes indicative of pediatric immune dysregulation. CONCLUSIONS The existing literature suggests an association between toxic metals and pediatric immune dysregulation. Given the imminent threat of infectious diseases demonstrated by the recent COVID-19 epidemic in addition to increases in allergic disease, understanding how ubiquitous exposure to these metals in early life can impact immune response, infection risk, and vaccine response is imperative.
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Affiliation(s)
- Marina Oktapodas Feiler
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, United States of America; Department of Epidemiology and Biostatistics, College of Public Health, Temple University, United States of America.
| | - Erin R Kulick
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, United States of America
| | - Krystin Sinclair
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, United States of America
| | - Nitzana Spiegel
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, United States of America
| | - Sonia Habel
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, United States of America
| | - Olivia Given Castello
- Charles Library, Temple University Libraries, Temple University, United States of America
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23
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Kováčová M, Bodnár Yankovych H, Augustyniak A, Casas-Luna M, Remešová M, Findoráková L, Stahorský M, Čelko L, Baláž M. Triggering antibacterial activity of a common plant by biosorption of selected heavy metals. J Biol Inorg Chem 2024:10.1007/s00775-024-02045-1. [PMID: 38587623 DOI: 10.1007/s00775-024-02045-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 01/22/2024] [Indexed: 04/09/2024]
Abstract
The presented study proposes an efficient utilization of a common Thymus serpyllum L. (wild thyme) plant as a highly potent biosorbent of Cu(II) and Pb(II) ions and the efficient interaction of the copper-laden plant with two opportunistic bacteria. Apart from biochars that are commonly used for adsorption, here we report the direct use of native plant, which is potentially interesting also for soil remediation. The highest adsorption capacity for Cu(II) and Pb(II) ions (qe = 12.66 and 53.13 mg g-1, respectively) was achieved after 10 and 30 min of adsorption, respectively. Moreover, the Cu-laden plant was shown to be an efficient antibacterial agent against the bacteria Escherichia coli and Staphylococcus aureus, the results being slightly better in the former case. Such an activity is enabled only via the interaction of the adsorbed ions effectively distributed within the biological matrix of the plant with bacterial cells. Thus, the sustainable resource can be used both for the treatment of wastewater and, after an effective embedment of metal ions, for the fight against microbes.
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Affiliation(s)
- Mária Kováčová
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01, Košice, Slovakia
| | - Halyna Bodnár Yankovych
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01, Košice, Slovakia
| | - Adrian Augustyniak
- Chair of Building Materials and Construction Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany
- Faculty of Chemical Technology and Engineering, The West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71 065, Szczecin, Poland
- Institute of Biology, University of Szczecin, ul. Wąska 13, 71-415, Szczecin, Poland
| | - Mariano Casas-Luna
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00, Brno, Czech Republic
- Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague 2, Czech Republic
| | - Michaela Remešová
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00, Brno, Czech Republic
| | - Lenka Findoráková
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01, Košice, Slovakia
| | - Martin Stahorský
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01, Košice, Slovakia
| | - Ladislav Čelko
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00, Brno, Czech Republic
| | - Matej Baláž
- Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01, Košice, Slovakia.
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24
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Zhao M, Xie L, Huang W, Li M, Gu X, Zhang W, Wei J, Zhang N. Combined Effects of Cadmium and Lead on Growth Performance and Kidney Function in Broiler Chicken. Biol Trace Elem Res 2024:10.1007/s12011-024-04173-w. [PMID: 38589681 DOI: 10.1007/s12011-024-04173-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
Cadmium (Cd) and lead (Pb) are heavy metals prevalent in the environment and feed, and they reduce production performance of domestic animals, as well as they result in residue in animal tissues. The kidney is the target tissue for Cd and Pb. And the kidney is crucial for the reabsorption of calcium (Ca), which consequently influences bone strength. However, there are relatively few studies related to the effects of Cd and Pb exposure on performance, bone strength and kidney damage in livestock. The purpose of this experiment was to explore the combined effect of Cd and Pb on growth performance and renal impairment and the possible underlying mechanism. For this, 168 1-day-old Ross 308 broilers were randomly divided into four groups of six birds each, with seven replicates in each group: control group, 50 mg Cd/kg body weight group, 200 mg Pb/kg body weight group and 50 mg Cd/kg body weight + 200 mg Pb/kg body weight group. Feed intake was recorded daily and body weight was recorded weekly. The results show that at the end of the 3rd and 6th week, one broiler from each replicate was randomly selected for sampling. Boilers co-exposed to Cd and Pb for 3 weeks and 6 weeks had significantly decreased average daily feed intake (ADFI) and average daily body weight gain (ADG) than the control group, and the ratio of feed-to-weight gain (F/G) significantly increased after 6 weeks of co-exposure to Cd and Pb. Microscopic picture and ultrastructure analyses of the kidneys showed that Cd and Pb caused kidney damage to broiler chickens, and the damage was more serious in the Cd + Pb group, which was manifested by increased renal tubular epithelial degeneration and increased interstitial stasis points. Dietary exposure to Cd and Pb impaired production performance and induced renal oxidative damage in broilers. The combined effects of Cd and Pb on the kidneys are greater than their effects alone. The PERK-ATF4 pathway mediated endoplasmic reticulum stress participates the renal oxidative damage during chronic Cd and Pb exposure.
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Affiliation(s)
- Man Zhao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Longqiang Xie
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Wenbin Huang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Meiling Li
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Xin Gu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China
| | - Wei Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan, Hubei Province, China
| | - Jintao Wei
- Institute of Animal Husbandry and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan, Hubei Province, China
| | - Niya Zhang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, 430070, China.
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25
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Bzikowska-Jura A, Wesołowska A, Sobieraj P, Nawrocka A, Filipek A, Durkalec M, Katryńska D, Jedziniak P. Essential and non-essential element concentrations in human milk samples and the assessment of infants' exposure. Sci Rep 2024; 14:8140. [PMID: 38584184 PMCID: PMC10999444 DOI: 10.1038/s41598-024-58683-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024] Open
Abstract
As the data concerning element concentrations in human milk (HM) samples and their intake by infants are lacking in Poland, the present study aimed to explore this issue. The material consisted of HM samples obtained from 30 exclusively breastfeeding mothers during 4-6 weeks postpartum. Additionally, to identify the factors that may potentially affect HM composition, information regarding maternal data (anthropometry, body composition, and diet) was also collected. Maternal diet was assessed with two methods-a food frequency questionnaire and 3-day dietary records. In total, 18 essential and non-essential elements were determined. For the elements analysis, we used inductively coupled plasma quadrupole mass spectrometry. Most of the elements (n = 11, 61%) were detected in all HM samples. In all HM samples tin concentration was higher (5.67 ± 2.39 μg/L) than the usual range reported by the World Health Organization (~ 1.0 μg/L). HM cadmium content was positively associated with maternal salty snacks intake (r = 0.502, p = 0.005), arsenic with whole-grain products intake (r = 0.37, p = 0.043), and mercury concentration with fruits and seeds/nuts consumption (r = 0.424, p = 0.042 and r = 0.378, p = 0.039, respectively). Higher HM lead concentration was predicted by maternal age (95% CI [0.94-0.97]), intake of fish (95% CI [1.01-1.03]), and vegetables (95% CI [1.02-1.06]). The highest infants' intake was observed for copper (35.24 ± 12.48) and the lowest for arsenic (0.076 ± 0.102). Infants' exposure to lead was associated with maternal frequency consumption of canned fish (p = 0.0045). There is a need to perform further research on this topic to maximize the benefits of breastfeeding by minimizing maternal and infant exposure to potentially toxic elements.
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Affiliation(s)
- Agnieszka Bzikowska-Jura
- Laboratory of Human Milk and Lactation Research at Regional Human Milk Bank in Holy Family Hospital, Department of Medical Biology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland.
| | - Aleksandra Wesołowska
- Laboratory of Human Milk and Lactation Research at Regional Human Milk Bank in Holy Family Hospital, Department of Medical Biology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
| | - Piotr Sobieraj
- Department of Internal Medicine, Hypertension and Vascular Diseases, Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Nawrocka
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Pulawy, Poland
| | - Aleksandra Filipek
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Pulawy, Poland
| | - Maciej Durkalec
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Pulawy, Poland
| | - Danuta Katryńska
- The Institute of Biology and Earth Sciences, University of the National Education Commission, Cracow, Poland
| | - Piotr Jedziniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, Pulawy, Poland
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26
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Zeng T, Wang L, Ren X, Al-Dhabi NA, Sha H, Fu Y, Tang W, Zhang J. The effect of quorum sensing on cadmium- and lead-containing wastewater treatment using activated sludge: Removal efficiency, enzyme activity, and microbial community. Environ Res 2024:118835. [PMID: 38582423 DOI: 10.1016/j.envres.2024.118835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/08/2024]
Abstract
Quorum sensing (QS) is prevalent in activated sludge processes; however, its essential role in the treatment of heavy metal wastewater has rarely been studied. Therefore, in this study, acyl homoserine lactone (AHL)-mediated QS was used to regulate the removal performance, enzyme activity, and microbial community of Cd- and Pb-containing wastewater in a sequencing batch reactor (SBR) over 30 cycles. The results showed that exogenous AHL strengthened the removal of Cd(II) and Pb(II) in their coexistence wastewater during the entire period. The removal of NH4+-N, total phosphorus, and chemical oxygen demand (COD) was also enhanced by the addition of AHL despite the coexistence of Cd(II) and Pb(II). Meanwhile, the protein content of extracellular polymeric substances was elevated and the microbial metabolism and antioxidative response were stimulated by the addition of AHL, which was beneficial for resistance to heavy metal stress and promoted pollutant removal by activated sludge. Microbial sequencing indicated that AHL optimized the microbial community structure, with the abundance of dominant taxa Proteobacteria and Unclassified_f_Enterobacteriaceae increasing by 73.9% and 53.2%, respectively. This study offers valuable insights into the mechanisms underlying Cd(II) and Pb(II) removal as well as microbial community succession under AHL availability in industrial wastewater.
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Affiliation(s)
- Taotao Zeng
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Liangqin Wang
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Xiaoya Ren
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazard, School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Haichao Sha
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Yusong Fu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Wangwang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Jie Zhang
- State Key Laboratory of Urban Water Resources & Environment, Harbin Institute of Technology, Harbin, 150000, China.
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Xie YX, Cheng WC, Xue ZF, Rahman MM, Wang L. Deterioration phenomenon of Pb-contaminated aqueous solution remediation and enhancement mechanism of nano-hydroxyapatite-assisted biomineralization. J Hazard Mater 2024; 470:134210. [PMID: 38581876 DOI: 10.1016/j.jhazmat.2024.134210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
Modern metallurgical and smelting activities discharge the lead-containing wastewater, causing serious threats to human health. Bacteria and urease applied to microbial-induced carbonate precipitation (MICP) and enzyme-induced carbonate precipitation (EICP) are denatured under high Pb2+ concentration. The nano-hydroxyapatite (nHAP)-assisted biomineralization technology was applied in this study for Pb immobilization. Results showed that the extracellular polymers and cell membranes failed to secure the urease activity when subjected to 60 mM Pb2+. The immobilization efficiency dropped to below 50% under MICP, whereas it due to a lack of extracellular polymers and cell membranes dropped to below 30% under EICP. nHAP prevented the attachment of Pb2+ either through competing with bacteria and urease or promoting Ca2+/Pb2+ ion exchange. Furthermore, CO32- from ureolysis replaced the hydroxyl (-OH) in hydroxylpyromorphite to encourage the formation of carbonate-bearing hydroxylpyromorphite of higher stability (Pb10(PO4)6CO3). Moreover, nHAP application overcame an inability to provide nucleation sites by urease. As a result, the immobilization efficiency, when subjected to 60 mM Pb2+, elevated to above 80% under MICP-nHAP and to some 70% under EICP-nHAP. The findings highlight the potential of applying the nHAP-assisted biomineralization technology to Pb-containing water bodies remediation.
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Affiliation(s)
- Yi-Xin Xie
- School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi'an 710055, China
| | - Wen-Chieh Cheng
- School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi'an 710055, China.
| | - Zhong-Fei Xue
- School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi'an 710055, China
| | - Md Mizanur Rahman
- Geotechnical Engineering, UniSA STEM, ScaRCE, University of South Australia, SA 5000, Australia
| | - Lin Wang
- School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi'an 710055, China
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Abbas N, Husnain SM, Asim U, Shahzad F, Abbas Y. A novel green synthesis of MnO 2-coal composite for rapid removal of silver and lead from wastewater. Water Res 2024; 256:121526. [PMID: 38583333 DOI: 10.1016/j.watres.2024.121526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 04/09/2024]
Abstract
The presence of Ag(I) and Pb(II) ions in wastewater poses a significant threat to human health in contemporary times. This study aims to explore the development of a novel and economical adsorbent by grafting MnO2 particles onto low-rank coal, providing an innovative solution for the remediation of water contaminated with silver and lead. The synthesized nanocomposites, referred to as MnO2-coal, underwent thorough characterization using FTIR, XRD, BET, SEM, and TEM to highlight the feasibility of in-situ surface modification of coal with MnO2 nanoparticles. The adsorption of Ag(I) and Pb(II) from their respective aqueous solution onto MnO2-coal was systematically investigated, with optimization of key parameters such as pH, temperature, initial concentration, contact time, ionic strength, and competing ions. Remarkably adsorption equilibrium was achieved within a 10 min, resulting in impressive removal rates of 80-90% for both Ag(I) and Pb(II) at pH 6. The experimental data were evaluated using Langmuir, Freundlich, and Temkin isotherm models. The Langmuir isotherm model proved to be more accurate in representing the adsorption of Ag(I) and Pb(II) ions onto MnO2-coal, exhibiting high regression coefficients (R2 = 0.99) and maximum adsorption capacities of 93.57 and 61.98 mg/g, along with partition coefficients of 4.53 and 71.92 L/g for Ag(I) and Pb(II), respectively, at 293 K. Kinetic assessments employing PFO, PSO, Elovich, and IPD models indicated that the PFO and PSO models were most suitable for adsorption mechanism of Pb(II) and Ag(I) on MnO2-coal composites, respectively. Moreover, thermodynamic evaluation revealed the spontaneous and endothermic adsorption process for Ag(I), while exothermic behavior for adsorption of Pb(II). Importantly, this approach not only demonstrates cost-effectiveness but also environmental friendliness in treating heavy metal-contamination in water. The research suggests the potential of MnO2-coal composites as efficient and sustainable adsorbents for water purification applications.
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Affiliation(s)
- Naseem Abbas
- Institute of Chemical Sciences Bahauddin Zakariya University, Multan 60800, Punjab Pakistan
| | - Syed M Husnain
- Chemistry Division, Directorate of Science, Pakistan Institute of Nuclear Science and Technology (PINSTECH), Islamabad, 45650 Pakistan.
| | - Umar Asim
- Institute of Chemical Sciences Bahauddin Zakariya University, Multan 60800, Punjab Pakistan; Department of Chemistry, Institute of Southern Punjab, Multan, 60750, Pakistan.
| | - Faisal Shahzad
- Research and Innovation Center for Graphene and 2D Materials (RIC2D), Khalifa University, 127788, Abu Dhabi, United Arab Emirates; Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Yawar Abbas
- Research Scientist, Department of Physics, Khalifa University, 127788, Abu Dhabi, United Arab Emirates
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Irshad S, Xie Z, Qing M, Ali H, Ali I, Ahmad N, Rizwan Khan M, Nawaz A. Application of coconut shell activated carbon filter in vertical subsurface flow constructed wetland for enhanced multi-metal bioremediation and antioxidant response of Salvinia cucullate. Environ Pollut 2024; 346:123597. [PMID: 38369096 DOI: 10.1016/j.envpol.2024.123597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/20/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Coconut shell activated carbon (CNSAC) was applied as a filter layer in hybrid vertical subsurface flow constructed wetland (H-VSSF-CW), in order to enhance the multi-metal removal efficiency of the constructed wetland (CW) and to reduce heavy metal accumulation on Salvinia cucullata. Treatment P + AC, (having CNSAC filter layer), showed 32, 21 and 34% more Cd, Cr, and Pb removal efficiency than treatment P (without CNSAC layer). CNSAC activated carbon adsorbed Cd and Pb and Cr by functional groups -NH, -NO2, -C-O, -OH and -CO, and significantly reduced Cd and Pb exposure to S. cucullate. Chromium adsorption by CNSAC filter layer was half (just 25% of total input) of the Cd and Pb. In treatment P, due to high Cd, Pb and Cr accumulation in S. cucullate, the antioxidant defense mechanism of the plant was collapsed and cell death was observed, which in turn has resulted reduced biomass gain (5% reduction). On the other hand, in treatment P + AC, an antioxidant defense mechanism was active in the form significantly (p ≤ 0.05) increased of SOD, CAT and proline content while reduced MDA, EL, %EB and soluble sugar. So, the application of CNSAC increased the heavy metal removal efficiency of H-VSSF-CW by adsorption of a considerable share of heavy metal and hence, reduced the heavy metal load/exposure to S. cucullate.
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Affiliation(s)
- Sana Irshad
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China; Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, Guangdong, China.
| | - Zuoming Xie
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Mao Qing
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Hamid Ali
- Department of Biosciences, COMSATS University Islamabad, Park Road Tarlai Kalan, Islamabad, 44000, Pakistan.
| | - Ijaz Ali
- CAMB, Gulf University for Science and Technology, Hawally, 32093, Kuwait
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Mohammad Rizwan Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Asad Nawaz
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, 425199, Yongzhou, Hunan, China.
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Abstract
Lead is a naturally occurring, bluish-gray metal that is found in small quantities in the earth's crust. The existing literature demonstrates that non-biodegradable character and continuous use results in accumulation of lead concentration in the environment and causes various ill effects such as neurotoxicity, change in psychological and behavioral development of different organisms. Nowadays the most effective technique in the revival of the environment is bioremediation and it is environmentally friendly and cost-effective. Bacterial strains such as Oceanobacillus profundus and Lactobacillus acidophilus ATCC4356 have the ability to reduce lead 97% and 73.9%, respectively. Similarly some species of algae and fungal strains also showed lead removal efficiency as 74% (spirulina), 97.1% (Chlorella kessleri), 95.5% (Penicillium janthinillum) and 86% (Aspergillus flavus). Biodegradation of lead by various microbes would be the most efficient and sustainable approach. This review focuses on toxicity, fate of lead in the environment and its microbial degradation.
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Affiliation(s)
- Khushhal Kumar
- Department of Zoology, Central University of Jammu, Rahya-Suchani, Samba, Jammu and Kashmir, India
| | - Devinder Singh
- Department of Zoology, Chandigarh University, Mohali, Punjab, India
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31
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Maryam H, Abbasi GH, Waseem M, Ahmed T, Rizwan M. Preparation and characterization of green silicon nanoparticles and their effects on growth and lead (Pb) accumulation in maize (Zea mays L.). Environ Pollut 2024; 346:123691. [PMID: 38431245 DOI: 10.1016/j.envpol.2024.123691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
The excessive accumulation of heavy metals, particularly lead (Pb) in agricultural soils, is a growing problem worldwide and needs urgent attention. This study aimed to prepare green silicon (Si) NPs using extract of Chenopodium quinoa leaves and evaluated their effects on Pb uptake and growth of maize (Zea mays L.). The results indicated that Pb exposure negatively affected the growth and chlorophyll contents of maize varieties, while SiNPs positively affected these attributes. Pb alone increased the electrolyte-leakage (EL), hydrogen-peroxide (H2O2) and selected antioxidant enzyme activities in leaves, whereas SiNPs decreased EL and H2O2 concentrations and further enhanced the enzyme activities as compared to their respective treatments without SiNPs. Pb-only treatments led to an increase in Pb concentrations and total Pb uptake in both shoots and roots. In contrast, SiNPs resulted in reduced Pb concentrations, with a concurrent decrease in total Pb uptake in shoots compared to the control treatment. The findings demonstrated that foliar application of SiNPs can mitigate the toxic effects of Pb in maize plants by triggering the antioxidant enzyme system and reducing the oxidative stress. Taken together, SiNPs have the potential to enhance maize production in Pb-contaminated soils. However, future research and application efforts should prioritize key aspects such as optimizing NPs synthesis, understanding positive mechanisms of green-synthesized NPs, and conducting multiple crop tests and real-world field trials.
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Affiliation(s)
- Haseeba Maryam
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ghulam Hassan Abbasi
- Institute of Agro-Industry & Environment, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Waseem
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Temoor Ahmed
- Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China; Xianghu Laboratory, Hangzhou, 311231, China; MEU Research Unit, Middle East University, Amman, Jordan
| | - Muhammad Rizwan
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
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Li Q, Yang X, Li C, He A, He S, Li X, Zhang Y, Yao T. Comparison of bio-beads combined with Pseudomonas edaphica and three phosphate materials for lead immobilization: Performance, mechanism and plant growth. J Environ Manage 2024; 357:120797. [PMID: 38574707 DOI: 10.1016/j.jenvman.2024.120797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
Phosphate materials (PMs) combine with phosphate solubilizing bacteria play an essential roles in lead (Pb) immobilization, but their resulting ability to reduce Pb bioavailability may vary depending on PMs used. In this study, Pseudomonas edaphica GAU-665 and three PMs: tricalcium phosphate, calcium phytate and nano-hydroxyapatite were respectively encapsulated into bio-beads by sodium alginate, which immobilization efficiency of Pb2+ were 99.11%, 97.76% and 99.02% at initial Pb2+ concentration of 200 mg L-1, respectively. The Pb2+ immobilization performance of bio-beads under different conditions and their organic acids secreted were examined. Most Pb2+ was immobilized by bio-beads through combined functions of adsorption, precipitation, ion exchange and biomineralization, accompanied by the formation of more stable compounds such as Pb3(PO4)2, Pb5(PO4)3OH and Pb5(PO4)3Cl. Meanwhile, pot experimental results indicated that the inoculation of CPhy (calcium phytate) bio-beads with PSB have highest biomass and root growth of oat (Avena sativa L.) in Pb-stressed compared with CK, which increased the content of chlorophyll b (167.51%) in shoot. In addition, the CPhy bio-beads enhance the peroxidase, catalase activities and reduce the malondialdehyde content to alleviating lead physiological toxicity in oat, which reductions the Pb accumulation in shoot (52.06%) and root (81.04%), and increased the residual fraction of Pb by 165.80% in soil. These findings suggest the bio-beads combined with P. edaphica GAU-665 and calcium phytate is an efficient Pb immobilization material and provided feasible way to improve safety agricultural production and Pb-contaminated soil remediation.
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Affiliation(s)
- Qi Li
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Xiaolei Yang
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Changning Li
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Aolei He
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Shanmu He
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Xuemei Li
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Ying Zhang
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China
| | - Tuo Yao
- College of Grassland Science, Gansu Agricultural University, Lanzhou, 730070, Gansu, China; Key Laboratory of Grassland Ecosystem, Gansu Agricultural University, Ministry of Education, Lanzhou, 730070, Gansu, China.
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Khoshnamvand M, Hamidian AH, Ashtiani S, Ali J, Pei DS. Combined toxic effects of polystyrene nanoplastics and lead on Chlorella vulgaris growth, membrane lipid peroxidation, antioxidant capacity, and morphological alterations. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-33084-5. [PMID: 38561535 DOI: 10.1007/s11356-024-33084-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
In recent years, there has been a significant rise in the utilization of amino-functionalized polystyrene nanoplastics (PS-NH2). This surge in usage can be attributed to their exceptional characteristics, including a substantial specific surface area, high energy, and strong reactivity. These properties make them highly suitable for a wide range of industrial and medical applications. Nevertheless, there is a growing apprehension regarding their potential toxicity to aquatic organisms, particularly when considering the potential impact of heavy metals like lead (Pb) on the toxicity of PS-NH2. Herein, we examined the toxic effects of sole PS-NH2 (90 nm) at five concentrations (e.g., 0, 0.125, 0.25, 0.5, and 1 mg/L), as well as the simultaneous exposure of PS-NH2 and Pb2+ (using two environmental concentrations, e.g., 20 μg/L for Pb low (PbL) and 80 μg/L for Pb higher (PbH)) to the microalga Chlorella vulgaris. After a 96-h exposure, significant differences in chlorophyll a content and algal growth (biomass) were observed between the control group and other treatments (ANOVA, p < 0.05). The algae exposed to PS-NH2, PS-NH2 + PbL, and PS-NH2 + PbH treatment groups exhibited dose-dependent toxicity responses to chlorophyll a content and biomass. According to the Abbott toxicity model, the combined toxicity of treatment groups of PS-NH2 and PbL,H showed synergistic effects. The largest morphological changes such as C. vulgaris' size reduction and cellular aggregation were evident in the medium treated with elevated concentrations of both PS-NH2 and Pb2+. The toxicity of the treatment groups followed the sequence PS-NH2 < PS-NH2 + PbL < PS-NH2 + PbH. These results contribute novel insights into co-exposure toxicity to PS-NH2 and Pb2+ in algae communities.
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Affiliation(s)
- Mehdi Khoshnamvand
- College of Pharmaceutical Science, Southwest University, Chongqing, 400716, China
- Department of Environmental Science and Engineering, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Amir Hossein Hamidian
- Department of Environmental Science and Engineering, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
| | - Saeed Ashtiani
- Department of Physical Chemistry, University of Chemistry and Technology, Technicka 5, Prague 6, Prague, 16628, Czech Republic
| | - Jafar Ali
- Key Lab of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun, 130021, China
- Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun, 130021, China
| | - De-Sheng Pei
- School of Public Health, Chongqing Medical University, Chongqing, 400016, China
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Smith SR, Rigby H. The significance of lead entering the human food chain via livestock ingestion from the agricultural use of biosolids, with special reference to the UK. Sci Total Environ 2024:172135. [PMID: 38569961 DOI: 10.1016/j.scitotenv.2024.172135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/20/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
Long-term application of biosolids to agricultural soils results in the slow accumulation of potentially toxic elements (PTEs), which are regulated by maximum permitted limit values to protect human health and the environment. Two programmes of UK government-funded (MAFF/DoE) research were commissioned in the 1990s to investigate the safety of the controls on PTEs in relation to the potential transfer to the food chain via the animal ingestion route by sheep grazing biosolids-amended soil. Here, we re-examine this evidence in the light of other recent research and revised food quality standards, to determine the significance of lead (Pb) accumulation in soil from the agricultural use of biosolids. Direct ingestion of biosolids-amended soil is the main transfer pathway of Pb to grazing livestock. The concentrations of Pb in muscle tissue of animals grazing biosolids-amended soil observed in the MAFF/DoE trials, and reported in the scientific literature, were generally small and similar to background, control values. Lambs and ewes ingesting biosolids-amended soil with a total Pb concentration > 200 mg kg-1 ds at a rate of 10 % in the diet exceeded the current maximum permitted concentration of Pb in offal (0.5 mg kg-1 fresh weight (FW)). However, the decline in PTE concentrations found in biosolids, due to improved industrial practices and stricter controls on the emissions of contaminants to the environment in general and wastewater in particular, has mitigated the risk of Pb accumulation above the food quality standard for this element in offal. Given the significant improvements in biosolids quality, and particularly the Pb content, regulatory soil and sludge limits for Pb are no longer likely to have a practical or significant impact on the amount of Pb entering the food chain through the animal ingestion route from biosolids-amended agricultural soil.
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Affiliation(s)
- Stephen R Smith
- Department of Civil and Environmental Engineering, Skempton Building, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Hannah Rigby
- Department of Civil and Environmental Engineering, Skempton Building, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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Cao Q, Wei D, Ma X, Liu R, Samra, Qi Y, Yuan C, Huang D. Polystyrene microplastics mitigate lead-induced neurotoxicity by reducing heavy metal uptake in zebrafish larvae. Sci Total Environ 2024; 919:170790. [PMID: 38331279 DOI: 10.1016/j.scitotenv.2024.170790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
The combined pollution of lead (Pb) and polystyrene microplastics (PS-MPs) is common in aquatic environments. However, the combined neurotoxicity of these two pollutants is still poorly understood. In this study, zebrafish (Danio rerio) larvae were used to assess the combined neurotoxicity and mechanism of Pb and PS-MPs at environmentally relevant concentrations. The results showed that Pb (10 μg/L) induced abnormal behavior including significantly reduced movement distance, maximum acceleration, and average velocity (P < 0.05) along with altered expression of neurodevelopment-related genes (gap43 and α1-tubulin) (P < 0.05). PS-MPs (25 μg/L, 250 μg/L; diameter at 25 μm) co-exposure not only significantly reduced the concentration of Pb in the exposed solution (P < 0.01), but also decreased the uptake of Pb by downregulating the divalent metal transporter 1 gene (dmt1) (P < 0.01), thereby alleviating Pb-induced neurotoxicity. However, to demonstrate that PS-MPs alleviate the neurotoxicity of Pb by reducing Pb uptake, upregulation of dmt1 by addition of deferoxamine (DFO, an efficient iron chelator, 100 μM) significantly increased the Pb uptake and exacerbated neurotoxicity in zebrafish. In summary, our results demonstrated that PS-MPs alleviate Pb neurotoxicity by downregulating the mRNA level of dmt1 and decreasing the Pb uptake. This study provides a new insight into the combined neurotoxicity and underlying mechanisms of PS-MPs and Pb on zebrafish.
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Affiliation(s)
- Qiyue Cao
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China; Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Dongqiong Wei
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Xuan Ma
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Rongjian Liu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Samra
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Yongmei Qi
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Cong Yuan
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China
| | - Dejun Huang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, China.
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Akinkugbe AA, Midya V, Duffy J, Landero J, Wright RO, Wright RJ. Metal mixtures and oral health among children and adolescents in the National Health and Nutrition Examination Survey (NHANES), 2017-2020. Int J Hyg Environ Health 2024; 257:114335. [PMID: 38330728 PMCID: PMC10939733 DOI: 10.1016/j.ijheh.2024.114335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/30/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
INTRODUCTION Dental caries is the most common non-communicable human disease, yet little is known about the role of environmental metals, despite teeth consisting of a hard matrix of trace elements. We conducted a cross-sectional study of associations between environmental metals and objective assessment of dental caries and subjective assessments of oral health among a representative sample of U.S. children and adolescents. METHODS Data were from the 2017-March 2020 pre-pandemic data file of the National Health and Nutrition Examination Survey (NHANES). To account for metal mixtures, we used weighted quantile sum (WQS) regression to estimate the joint impact of multiple trace elements assessed in blood and urine with oral disease outcomes. RESULTS The blood metal mixture index was associated with a 32% (95% CI: 1.11, 1.56) increased risk of decayed surfaces while the urine metal mixture index was associated with a 106%, RR (95% CI = 2.06 (1.58, 2.70) increased caries risk. For both blood and urine, Mercury (Hg) had the largest contribution to the mixture index followed by Lead (Pb). The WQS blood metal mixture index was also significantly associated with poorer self-rated oral health, although the magnitude of the association was not as strong as for the objective oral disease measures, RR (95% CI) = 1.04 (1.02, 1.07). DISCUSSION Increased exposure to a metal mixture was significantly related to poorer objective and subjective oral health outcomes among U.S. children and adolescents. These are among the first findings showing that metal mixtures are a significant contributor to poor oral health.
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Affiliation(s)
- A A Akinkugbe
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Climate Change, Environmental Health and Exposomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - V Midya
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Climate Change, Environmental Health and Exposomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Duffy
- Tufts University School of Medicine, Boston, MA, USA
| | - J Landero
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Climate Change, Environmental Health and Exposomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - R O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Climate Change, Environmental Health and Exposomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - R J Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Climate Change, Environmental Health and Exposomics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Abbasi S, Turner A, Jędruchniewicz K, Różyło K, Oleszczuk P. Exchangeable versus residual metals in naturally aged plastic litter. Environ Sci Pollut Res Int 2024; 31:24197-24206. [PMID: 38438643 DOI: 10.1007/s11356-024-32683-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 02/24/2024] [Indexed: 03/06/2024]
Abstract
Metals may be associated with plastics as additives arising from manufacture or through acquisition from the environment, but these associations are often poorly defined or referred to synonymously when considering metal availability. In this study, samples of plastic litter (n = 22) have been collected from various environmental and industrial compartments of Lublin Province, Poland, and fractionated according to polymer type (polyethylene, polyethylene terephthalate, nylon, expanded polystyrene, polypropylene, and "mixed") before being micronised to < 2 mm. Composites (n = 89) were subjected to two phases of a standardised and widely employed sequential extraction protocol (Bureau Communautaire de Reference; BCR) in order to define available (acid-soluble and exchangeable) and residual (soluble in boiling aqua regia) concentrations of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. For a given metal, total content, calculated by summing available and residual components, was highly variable, both between locations and amongst polymer categories, reflecting the heterogeneous distribution of a multitude of different additives. Overall, however, concentrations were greatest for Fe, with medians of several hundred to several thousand mg kg-1 amongst the different polymers, and lowest for Cd, Co, and Ni, where nearly all concentrations were below 10 mg kg-1. Median percentage metal availabilities were greatest for expanded polystyrene and were above 25% for Mn and Zn and below 10% for Cr and Fe in all polymer types. These observations are largely, but not entirely, attributed to the relative contributions of metals acquired from the environment and metals present as additives and residues. Significantly, the approach employed allows direct comparisons of metal availability in plastics with metal availability in environmental solids in order to evaluate the overall impacts of plastics in metal risk assessments.
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Affiliation(s)
- Sajjad Abbasi
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland.
- Department of Earth Sciences, College of Science, Shiraz University, Shiraz, 71454, Iran.
| | - Andrew Turner
- School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Katarzyna Jędruchniewicz
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland
| | - Krzysztof Różyło
- Department of Agricultural Ecology, Faculty of Agrobioengineering, University of Life Sciences, 13 Akademicka Street, 20-950, Lublin, Poland
| | - Patryk Oleszczuk
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland
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Bhat AA, Moglad E, Bansal P, Kaur H, Deorari M, Thapa R, Almalki WH, Kazmi I, Alzarea SI, Kukreti N, Ali H. Pollutants to pathogens: The role of heavy metals in modulating TGF-β signaling and lung cancer risk. Pathol Res Pract 2024; 256:155260. [PMID: 38493726 DOI: 10.1016/j.prp.2024.155260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Lung cancer is a malignant tumor that develops in the lungs due to the uncontrolled growth of aberrant cells. Heavy metals, such as arsenic, cadmium, mercury, and lead, are metallic elements characterized by their high atomic weights and densities. Anthropogenic activities, such as industrial operations and pollution, have the potential to discharge heavy metals into the environment, hence presenting hazards to ecosystems and human well-being. The TGF-β signalling pathways have a crucial function in controlling several cellular processes, with the ability to both prevent and promote tumor growth. TGF-β regulates cellular responses by interacting in both canonical and non-canonical signalling pathways. Research employing both in vitro and in vivo models has shown that heavy metals may trigger TGF-β signalling via complex molecular pathways. Experiments conducted in a controlled laboratory environment show that heavy metals like cadmium and arsenic may directly bind to TGF-β receptors, leading to alterations in their structure that enable the receptor to be phosphorylated. Activation of this route sets in motion subsequent signalling cascades, most notably the canonical Smad pathway. The development of lung cancer has been linked to heavy metals, which are ubiquitous environmental pollutants. To grasp the underlying processes, it is necessary to comprehend their molecular effect on TGF-β pathways. With a particular emphasis on its consequences for lung cancer, this abstract delves into the complex connection between exposure to heavy metals and the stimulation of TGF-β signalling.
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Affiliation(s)
- Asif Ahmad Bhat
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur 302017, India
| | - Ehssan Moglad
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Pooja Bansal
- Department of Biotechnology and Genetics, Jain (Deemed-to-be) University, Bengaluru, Karnataka 560069, India; Department of Allied Healthcare and Sciences, Vivekananda Global University, Jaipur, Rajasthan 303012, India
| | - Harpreet Kaur
- School of Basic & Applied Sciences, Shobhit University, Gangoh, Uttar Pradesh 247341, India; Department of Health & Allied Sciences, Arka Jain University, Jamshedpur, Jharkhand 831001, India
| | - Mahamedha Deorari
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Riya Thapa
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur 302017, India
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Aljouf 72341, Saudi Arabia
| | - Neelima Kukreti
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan.
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Parvez SM, Jahan F, Abedin J, Rahman M, Hasan SS, Islam N, Aich N, Moniruzzaman M, Islam Z, Fujimura M, Raqib R, Knibbs LD, Sly PD. Blood lead, cadmium and hair mercury concentrations and association with soil, dust and occupational factors in e-waste recycling workers in Bangladesh. Int J Hyg Environ Health 2024; 257:114340. [PMID: 38422602 DOI: 10.1016/j.ijheh.2024.114340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Electronic waste (e-waste) recycling activities release toxic metals, which pose substantial hazard to the environment and human health. We evaluated metal concentrations in biological and environmental samples, and examined the associations between biological lead (Pb), cadmium (Cd), and mercury (Hg) with soil and dust metals, and other possible determinants, among populations exposed and non-exposed to e-waste in Bangladesh. METHODS A total of 199 e-waste workers and 104 non-exposed individuals were recruited. We measured blood Pb (BPb) and Cd (BCd) concentrations and total Hg (THg) from hair samples. Data were collected on occupational, and behavioral factors. We fitted an elastic net regression (ENET) to model the relationship between a set of influencing factors and metals as outcome variables while controlling for potential covariates. RESULTS The median concentrations of BPb (11.89 μg/dL) and BCd (1.04 μg/L) among exposed workers were higher than those of non-exposed workers (BPb: 3.63 μg/dL and BCd: 0.83 μg/L respectively). A 100 ppm increment in soil Pb level was associated with an increase in ln-Pb (transformed) in blood (β = 0.002; 95% CI = 0.00, 0.02). Similarly, ln-BCd level increased (β = 0.02; 95% CI = 0.001, 0.07) with every ppm increase in dust Cd level. The number of years worked in e-waste activities was associated with elevated ln-BPb (β = 0.01; 95% CI = 0.01, 0.02) and ln-BCd levels (β = 0.003; 95% CI = 0.00, 0.05). Smoking significantly contributed to elevated levels of ln-BCd (β = 0.46; 95% CI = 0.43, 0.73). An increment of 100 kg of e-waste handling per week led to an increase in ln-BPb levels (β = 0.002; 95% CI = 0.00, 0.01), while respondents knowledge about adverse impact on e-waste reduced the ln-BPb level (β = -0.14; 95% CI = -0.31, -0.03). Fish consumption frequency had a positive association with THg in hair. CONCLUSIONS Our data show the need for workplace controls to reduce exposure to Pb and Cd with a broader view of exposure source taken.
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Affiliation(s)
- Sarker Masud Parvez
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia; Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh.
| | - Farjana Jahan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Jaynal Abedin
- School of Mathematical and Statistical Sciences, University of Galway, H91 TK33, Galway, Ireland; Center for Data Research and Analytics, Bethesda, MD 20817, USA
| | - Mahbubur Rahman
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Shaikh Sharif Hasan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Nafisa Islam
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
| | - Nirupam Aich
- Department of Civil and Environmental Engineering, University of Nebraska - Lincoln, Lincoln, NE 68588, USA
| | | | - Zahir Islam
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
| | - Masatake Fujimura
- Department of Basic Medical Sciences, National Institute for Minamata Disease, Minamata, Kumamoto 867-0008, Japan
| | - Rubhana Raqib
- Nutrition Research Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Luke D Knibbs
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; Public Health Research Analytics and Methods for Evidence, Public Health Unit, Sydney Local Health District, Camperdown, NSW 2050, Australia
| | - Peter D Sly
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
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Anwar A, De Ayreflor Reyes SR, John AA, Breiling E, O’Connor AM, Reis S, Shim JH, Shah AA, Srinivasan J, Farny NG. Nucleic Acid Aptamers Protect Against Lead (Pb(II)) Toxicity. bioRxiv 2024:2024.03.28.587288. [PMID: 38585880 PMCID: PMC10996642 DOI: 10.1101/2024.03.28.587288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Lead (Pb(II)) is a pervasive heavy metal toxin with many well-established negative effects on human health. Lead toxicity arises from cumulative, repeated environmental exposures. Thus, prophylactic strategies to protect against the bioaccumulation of lead could reduce lead-associated human pathologies. Here we show that DNA and RNA aptamers protect C. elegans from toxic phenotypes caused by lead. Reproductive toxicity, as measured by brood size assays, is prevented by co-feeding of animals with DNA or RNA aptamers. Similarly, lead-induced behavioral anomalies are also normalized by aptamer feeding. Further, cultured human HEK293 and primary murine osteoblasts are protected from lead toxicity by transfection with DNA aptamers. The osteogenic development, which is decreased by lead exposure, is maintained by prior transfection of lead-binding DNA aptamers. Aptamers may be an effective strategy for the protection of human health in the face of increasing environmental toxicants.
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Affiliation(s)
- Afreen Anwar
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Department of Biotechnology, Baba Ghulam Shah Badshah University, Rajouri (J&K), India
| | | | - Aijaz Ahmad John
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Erik Breiling
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Abigail M. O’Connor
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Stephanie Reis
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Jae-Hyuck Shim
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Ali Asghar Shah
- Department of Biotechnology, Baba Ghulam Shah Badshah University, Rajouri (J&K), India
| | - Jagan Srinivasan
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Program in Bioinformatics and Computational Biology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Program in Neuroscience, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
| | - Natalie G. Farny
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Program in Bioinformatics and Computational Biology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
- Program in Neuroscience, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA
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41
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Tian W, Wang S, Li X, Zhou M, Wu Y, Zhang J, Chen X. An automatic and smart platform for rapid detection of cadmium and lead simultaneously in rice using triple-amplified chemiluminescence immunoassay. Food Chem 2024; 437:137900. [PMID: 37918164 DOI: 10.1016/j.foodchem.2023.137900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/13/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Rapid detection of trace ions is urgently needed for large-scale screening to ensure food safety. This study developed an innovative and automatic strategy, based on a smart-designed platform for rapid detection of cadmium and lead in rice. As bridge antibody, the antigen was conjugated with goat anti-mouse immunoglobulin G labeled alkaline phosphatase. Meanwhile, a biotin-streptavidin system was introduced to micromagnetic particles, thus providing a triple-amplified chemiluminescence immunoassay with high sensitivity, accuracy and specificity. The limits of detection for cadmium and lead were 0.06 and 1.00 ng mL-1, respectively, within 30 min. The recoveries ranged from 89.81 to 114.92 %, with relative standard deviations less than 9.2 %. The results obtained agreed with those of inductively coupled plasma-mass spectrometry and certified reference materials. Additionally, the auto-operation avoided human errors as well as being convenient, fast, automatic and high-throughput. Therefore, this smart platform can be applied for large-scale Cd2+ and Pb2+ screening.
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Affiliation(s)
- Wei Tian
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Songxue Wang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xiaomeng Li
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China; College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Minghui Zhou
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China.
| | - Yanxiang Wu
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Jieqiong Zhang
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
| | - Xi Chen
- Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
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Esquivel-Ramos E, Alfaro-de la Torre MC, Santos-Díaz MDS. Removal of high lead concentration by hydroponic cultures of normal and transformed plants of Scirpus americanus Pers. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-33051-0. [PMID: 38532219 DOI: 10.1007/s11356-024-33051-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
Lead is a very toxic metal which affects human health. An alternative to remove it from contaminated water is the use of macrophytes, as Scirpus americanus Pers. This species is tolerant to salt and metals and has high biomass. The present research analyzed the capacity of hydroponic cultures of normal and transgenic plants (line T12) from S. americanus to remove high concentrations of lead. The antioxidant response of plants to metal exposure was also measured. The MINTEQ3.1 program was used to define the media composition in order to have the metal available to the plants. According to MINTEQ3.1 predictions, sulfate, phosphate, and molybdenum must be removed from the medium to avoid lead precipitation. Therefore, the plants were maintained in a modified Hoagland solution containing 100, 250, and 400 mg/L lead. The presence of metal did not affect the growth of roots and stems at all concentration tested. The normal and T12 plants accumulated 69,389 mg/kg and 45,297 mg/kg lead, respectively, and could be considered hyperaccumulators. Plant tolerance to lead mainly involved an increase in superoxide dismutase activity and glutathione accumulation. The bioconcentration factor indicated that S. americanus plants bioconcentrated between 192 and 300 times the metal; thus, S. americanus could be used for phytoremediation of water contaminated with a high concentration of lead.
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Affiliation(s)
- Elizabeth Esquivel-Ramos
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Manuel Nava 6, 78210, San Luis Potosí, Mexico
| | | | - María Del Socorro Santos-Díaz
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Manuel Nava 6, 78210, San Luis Potosí, Mexico.
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Farmer JG, Specht A, Punshon T, Jackson BP, Bidlack FB, Bakalar CA, Mukherjee R, Davis M, Steadman DW, Weisskopf MG. Lead exposure across the life course and age at death. Sci Total Environ 2024; 927:171975. [PMID: 38547974 DOI: 10.1016/j.scitotenv.2024.171975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Lead (Pb) exposure has been associated with an increased risk of all-cause mortality, even at low levels. Little is known about how the timing of Pb exposure throughout life may influence these relationships. Quantifying the amount of Pb present in various tissues of the body provides measurements of exposure from different periods of life. These include bone, tooth enamel, which is the hard outer layer of the crown, and tooth cementum, which is the calcified connective tissue covering the tooth root. The purpose of the study was to examine Pb exposure at multiple periods throughout life, including childhood (enamel), adulthood (cementum), and later life (bone), and to estimate their associations with age at death. METHODS 208 skeleton donors (born 1910-1960) from an ongoing case-control study were included in this study. Pb was measured in tibia (shin), bone using X-Ray Florescence and in teeth using Laser-Ablation Inductively Coupled Plasma Mass Spectroscopy. After excluding unusually high measurements (>2sd), this resulted in a final sample of 111 with all exposure measures. Correlations across measures were determined using partial Spearman correlations. Associations between Pb exposure and age at death were estimated using Multivariable Linear Regression. RESULTS Pb measures across exposure periods were all significantly correlated, with the highest correlation between cementum and tibia measures (r = 0.61). Donors were largely female (63.0 %), White (97.3 %), and attended some college (49.5 %). Single exposure models found that higher tooth cementum Pb (-1.27; 95 % CI: -2.48, -0.06) and tibia bone Pb (-0.91; 95 % CI: -1.67, -0.15) were significantly associated with an earlier age at death. When considered simultaneously, only cementum Pb remained significant (-1.51; 95 % CI: -2.92, -0.11). Secondary analyses suggest that the outer cementum Pb may be especially associated with an earlier age at death. CONCLUSION Results suggest that higher Pb exposure is associated with an earlier age at death, with adulthood as the life period of most relevance. Additional studies using Pb exposure measures from different life stages should be conducted.
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Affiliation(s)
- Justin G Farmer
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA, United States.
| | - Aaron Specht
- School of Health Sciences, Purdue University, 550 W Stadium Ave, West Lafayette, IN, United States
| | - Tracy Punshon
- Department of Biological Sciences, Dartmouth College, Hanover, NH, United States
| | - Brian P Jackson
- Department of Earth Sciences, Dartmouth College, Hanover, NH, United States
| | | | - Charlotte A Bakalar
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA, United States
| | - Rajarshi Mukherjee
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA, United States
| | - Mary Davis
- Department of Anthropology, University of Tennessee Knoxville, 1621 Cumberland Avenue, Knoxville, TN, United States
| | - Dawnie W Steadman
- Department of Anthropology, University of Tennessee Knoxville, 1621 Cumberland Avenue, Knoxville, TN, United States
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA, United States
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Cao Y, Zhao W, Zhong Y, Jiang X, Mei H, Chang Y, Wu D, Dou J, Vasquez E, Shi X, Yang J, Jia Z, Tan X, Li Q, Dong Y, Xie R, Gao J, Wu Y, Liu Y. Effects of chronic low-level lead (Pb) exposure on cognitive function and hippocampal neuronal ferroptosis: An integrative approach using bioinformatics analysis, machine learning, and experimental validation. Sci Total Environ 2024; 917:170317. [PMID: 38301787 DOI: 10.1016/j.scitotenv.2024.170317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 02/03/2024]
Abstract
Lead (Pb), a pervasive and ancient toxic heavy metal, continues to pose significant neurological health risks, particularly in regions such as Southeast Asia. While previous research has primarily focused on the adverse effects of acute, high-level lead exposure on neurological systems, studies on the impacts of chronic, low-level exposure are less extensive, especially regarding the precise mechanisms linking ferroptosis - a novel type of neuron cell death - with cognitive impairment. This study aims to explore the potential effects of chronic low-level lead exposure on cognitive function and hippocampal neuronal ferroptosis. This research represents the first comprehensive investigation into the impact of chronic low-level lead exposure on hippocampal neuronal ferroptosis, spanning clinical settings, bioinformatic analyses, and experimental validation. Our findings reveal significant alterations in the expression of genes associated with iron metabolism and Nrf2-dependent ferroptosis following lead exposure, as evidenced by comparing gene expression in the peripheral blood of lead-acid battery workers and workers without lead exposure. Furthermore, our in vitro and in vivo experimental results strongly suggest that lead exposure may precipitate cognitive dysfunction and induce hippocampal neuronal ferroptosis. In conclusion, our study indicates that chronic low-level lead exposure may activate microglia, leading to the promotion of ferroptosis in hippocampal neurons.
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Affiliation(s)
- Yingsi Cao
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Wenjing Zhao
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, China
| | - Yanqi Zhong
- Department of Radiology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Xiaofan Jiang
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Huiya Mei
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yuanjin Chang
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Dongqin Wu
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - JianRui Dou
- Center for Disease Control and Prevention of Yangzhou, Yangzhou, China
| | - Emely Vasquez
- School of Medicine, The City University of New York School of Medicine, New York, USA
| | - Xian Shi
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jiatao Yang
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zhongtang Jia
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xiaochao Tan
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Qian Li
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yuying Dong
- Center for Disease Control and Prevention of Yangzhou, Yangzhou, China
| | - Ruijin Xie
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China; Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Ju Gao
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, China.
| | - Yu Wu
- Lab of Modern Environmental Toxicology, Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China; Environment and Health Research Division, Public Health Research Center, Wuxi School of Medicine, Jiangnan University, Wuxi, China; The Key Laboratory of Modern Toxicology of Ministry of Education, Nanjing Medical University, Nanjing, China.
| | - Yueying Liu
- Department of Pediatrics, Affiliated Hospital of Jiangnan University, Wuxi, China.
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da Silva HFO, de Oliveira Torchia DF, van Tol de Castro TA, de Abreu Lopes S, Cantarino RE, Tavares OCH, de Moura OVT, Rodrigues NF, Berbara RLL, Santos LA, García AC. Role of the molecular structure of humified organic matter in rice plant response to environmental lead pollution. Environ Sci Pollut Res Int 2024:10.1007/s11356-024-32898-7. [PMID: 38507164 DOI: 10.1007/s11356-024-32898-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
Humified organic matter has been shown to decrease Pb toxicity in plants. However, there are still gaps in our understanding of the mechanism by which this phenomenon occurs. In this study, we aimed to assess the ability of humic substances (HSs), humic acids (HAs), and fulvic acids (FAs) to enhance defense mechanisms in rice plants under lead (Pb)-stressed conditions. HS fractions were isolated from vermicompost using the chemical fractionation methodology established by the International Humic Substances Society. These fractions were characterized by solid-state NMR and FTIR. Chemometric analysis was used to compare humic structures and correlate them with bioactivity. Three treatments were tested to evaluate the protective effect of humic fractions on rice plants. The first experiment involved the application of humic fractions along with Pb. The second comprised pretreatment with humic fractions followed by subsequent exposure to Pb stress. The third experiment involved Pb stress and subsequent treatment with humic fractions. The root morphology and components of the antioxidative defense system were evaluated and quantified. The results showed that HS + Pb, HA + Pb, and FA + Pb treatment preserved root growth and reduced the levels of O2- and malondialdehyde (MDA) in the roots by up to 5% and 2%, respectively. Pretreatment of the plants with humic fractions promoted the maintenance of root growth and reduced the contents of O2-, H2O2, and MDA by up to 48%, 22%, and 20%, respectively. Combined application of humic fractions and Pb reduced the Pb content in plant tissues by up to 60%, while pretreatment reduced it by up to 80%. The protective capacity of humic fractions is related to the presence of peptides, lignin, and carbohydrate fragments in their molecular structures. These results suggest that products could be developed that can mitigate the adverse effects of heavy metals on agricultural crops.
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Affiliation(s)
- Hellen Fernanda Oliveira da Silva
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | | | - Tadeu Augusto van Tol de Castro
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Samuel de Abreu Lopes
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Raphaella Esterque Cantarino
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Orlando Carlos Huertas Tavares
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Octávio Vioratti Telles de Moura
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Natália Fernandes Rodrigues
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Ricardo Luiz Louro Berbara
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Leandro Azevedo Santos
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil
| | - Andrés Calderin García
- Laboratory of Soil Biological Chemistry, Department of Soils, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, RJ, Brazil.
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46
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Radović B, Baralić K, Ćurčić M, Marić Đ, Živanović J, Antonijević Miljaković E, Buha Djordjevic A, Ćosić DĐ, Bulat Z, Antonijević B. Endocrine disruptors in e-waste dismantling dust: In silico prediction of mixture-induced reproductive toxicity mechanisms. Sci Total Environ 2024; 917:170437. [PMID: 38290670 DOI: 10.1016/j.scitotenv.2024.170437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
The constant exposure of humans to a mixture of low doses of toxic substances, emerging from the daily emission of toxic dust containing various metals and organic compounds in electrical and electronic waste (e-waste) recycling areas, poses potential harmful effects on health and the environment. While individually recognized as endocrine disruptors affecting hormonal balance, the combined impact of these toxic substances in a mixture remains insufficiently explored, particularly in relation to reproductive health. Thus, the aim of this in silico analysis was to: (i) assess the relationship between the exposure to a mixture of DBDE, DBDPE, TBBPA, Pb, Cd and Ni and development of male and female reproductive system disorders; and (ii) demonstrate the ability of in silico toxicogenomic tools in revealing the potential molecular mechanisms involved in the mixture toxicity. As the main data-mining tool, Comparative Toxicogenomics Database (CTD) was used, along with the ToppGene Suite portal and GeneMANIA online server. Our analysis identified 5 genes common to all the investigated substances and linked to reproductive system disorders. Notably, the most prominent interactions among these genes were physical interactions (77.64 %). Pathway enrichment analysis identified oxidative stress response as the central disrupted molecular pathway linked to reproductive pathology in the investigated mixture, while our chemical-phenotype CTD analysis uncovered additional affected pathways - apoptosis, hormonal regulation, and developmental functions. These findings highlight an increased risk of reproductive system disorders associated with the exposure to the investigated mixture of toxic substances in electronic waste recycling areas, emphasizing the urgent need for attention to address this environmental health concern. Hence, future laboratory studies should prioritize investigating the specific genes and common mechanisms identified in this study.
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Affiliation(s)
- Biljana Radović
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Katarina Baralić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Marijana Ćurčić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Đurđica Marić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Jovana Živanović
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Evica Antonijević Miljaković
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Aleksandra Buha Djordjevic
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Danijela Đukić Ćosić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Zorica Bulat
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Biljana Antonijević
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
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47
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Lin S, He J, Zhou Y, Bao Y, Feng X, Cheng H, Cai H, Hu S, Wang L, Zheng Y, Zhang M, Fan Q, Wen S, Lin Y, Liu C, Chen X, Wang F, Ge X, Yang X. Cross-sectional and Longitudinal Associations Between Metal Mixtures and Serum C3, C4: Result from the Manganese‑exposed Workers Healthy Cohort. Biol Trace Elem Res 2024:10.1007/s12011-024-04143-2. [PMID: 38492120 DOI: 10.1007/s12011-024-04143-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/04/2024] [Indexed: 03/18/2024]
Abstract
Exposure to metal mixtures compromises the immune system, with the complement system connecting innate and adaptive immunity. Herein, we sought to explore the relationships between blood cell metal mixtures and the third and fourth components of serum complement (C3, C4). A total of 538 participants were recruited in November 2017, and 289 participants were followed up in November 2021. We conducted a cross-sectional analysis at baseline and a longitudinal analysis over 4 years. Least Absolute Shrinkage and Selection Operator (LASSO) was employed to identify the primary metals related to serum C3, C4; generalized linear model (GLM) was further used to evaluate the cross-sectional associations of the selected metals and serum C3, C4. Furthermore, participants were categorized into three groups according to the percentage change in metal concentrations over 4 years. GLM was performed to assess the associations between changes in metal concentrations and changes in serum C3, C4 levels. At baseline, each 1-unit increase in log10-transformed in magnesium, manganese, copper, rubidium, and lead was significantly associated with a change in serum C3 of 0.226 (95% CI: 0.146, 0.307), 0.055 (95% CI: 0.022, 0.088), 0.113 (95% CI: 0.019, 0.206), - 0.173 (95% CI: - 0.262, - 0.083), and - 0.020 (95% CI: - 0.039, - 0.001), respectively. Longitudinally, decreased copper concentrations were negatively associated with an increment in serum C3 levels, while decreased lead concentrations were positively associated with an increment in serum C3 levels. However, no metal was found to be primarily associated with serum C4 in LASSO, so we did not further explore the relationship between them. Our research indicates that copper and lead may affect complement system homeostasis by influencing serum C3 levels. Further investigation is necessary to elucidate the underlying mechanisms.
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Affiliation(s)
- Sencai Lin
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Junxiu He
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Yinghua Zhou
- School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545006, China
| | - Yu Bao
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Xiuming Feng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Hong Cheng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Haiqing Cai
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Sihan Hu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Lin Wang
- School of Science, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, China
| | - Yuan Zheng
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Mengdi Zhang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Qinghua Fan
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Shifeng Wen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Yuanxin Lin
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Chaoqun Liu
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Xing Chen
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Fei Wang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Xiaoting Ge
- School of Medicine, Guangxi University of Science and Technology, Liuzhou, 545006, China.
| | - Xiaobo Yang
- School of Public Health, Guangxi Medical University, Nanning, 530021, China.
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48
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van den Heever L, Naidoo V, Coetzer T, Eyssen L, Hewlett J, Smit-Robinson HA, McKechnie AE. Sub-lethal impacts of lead poisoning on blood biochemistry, immune function and delta-aminolevulinic acid dehydratase (δ-ALAD) activity in Cape (Gyps coprotheres) and white-backed (G. africanus) Vulture chicks. Environ Res 2024; 245:117926. [PMID: 38104912 DOI: 10.1016/j.envres.2023.117926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/17/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Although the prevalence of lead poisoning in southern Africa's Gyps vultures is now well-established, its finer physiological effects on these endangered species remain poorly characterised. We evaluated the sub-lethal impact of acute lead exposure on Cape and White-backed Vulture chicks from two breeding colonies in South Africa, by analysing its possible effects on key blood biochemistry parameters, immune function, packed cell volume and δ-aminolevulinic acid dehydratase (δ-ALAD) activity. All 37 White-backed Vulture nestlings sampled displayed elevated lead levels (>10 μg/dL), and seven had blood [Pb] >100 μg/dL. Eight of 28 Cape Vulture nestlings sampled had blood [Pb] exceeding background exposure, with one showing blood [Pb] >100 μg/dL. Delta-aminolevulinic acid dehydratase (δ-ALAD) activity was significantly and negatively related to blood [Pb] in nestlings from both species, with 50% inhibition of the enzyme predicted to occur at blood [Pb] = 52.8 μg/dL (White-backed Vulture) and 18.8 μg/dL (Cape Vulture). Although no significant relationship was found between % packed cell volume (PCV) and blood [Pb], the relatively lower mean PCV of 32.9% in White-backed Vulture chicks, combined with normal serum protein values, is likely indicative of depression or haemolytic anaemia. The leukogram was consistent in both species, although the presence of immature heterophils suggested an inflammatory response in White-backed Vulture chicks with blood [Pb] >100 μg/dL. Values for cholesterol, triglycerides, total serum protein, albumin, globulin, albumin/globulin ratio, alanine aminotransferase (ALT) and gamma-glutamyl transferase (GGT) were consistent with values previously reported. Calcium and phosphorus concentrations suggested no adverse effects on bone metabolism. A significant decrease in urea: uric acid (U:UA) ratio at blood [Pb] >100 μg/dL in White-backed Vulture chicks, brought about by a decrease in urea production, raises the possibility of hepatic abnormality. These results suggest that δ-ALAD activity may serve as a sensitive biomarker of lead toxicity in both species, while highlighting the need to better understand the significant variability in sensitivity that is observed, even between closely related members of the same genus.
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Affiliation(s)
- Linda van den Heever
- Conservation Division, BirdLife South Africa, Johannesburg, South Africa; DSI-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa.
| | - Vinny Naidoo
- Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Theresa Coetzer
- Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Lauren Eyssen
- Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Jennie Hewlett
- Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Hanneline A Smit-Robinson
- Conservation Division, BirdLife South Africa, Johannesburg, South Africa; Applied Behavioural Ecological & Ecosystem Research Unit (ABEERU), UNISA, Florida, South Africa
| | - Andrew E McKechnie
- DSI-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa; South African Research Chair in Conservation Physiology, South African National Biodiversity Institute, Pretoria, South Africa
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49
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Irvin VL, Kile ML, Lucas-Woodruff C, Cude C, Anderson L, Baylog K, Hovell MF, Choun S, Kaplan RM. An overview of the Be Well Home Health Navigator Program to reduce contaminants in well water: Design and methods. Contemp Clin Trials 2024; 140:107497. [PMID: 38471641 DOI: 10.1016/j.cct.2024.107497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/23/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND The Be Well Home Health Navigator Program is a prospective, randomized controlled trial (RCT) implemented to compare a community health navigator program to usual care program to reduce contaminants in drinking water. DESIGN AND SETTING This 4-year two-armed RCT will involve well owners in Oregon that have private drinking water wells that contain arsenic, nitrate, or lead above maximum contaminant levels. INTERVENTION The intervention leverages the trusted relationship between Cooperative Extension Service (CES) Community Educators and rural well owners to educate, assist and motivate to make decisions and set actionable steps to mitigate water contamination. In this study, CES will serve as home health navigators to deliver: 1) individualized feedback, 2) positive reinforcement, 3) teach-back moments, 4) decision-making skills, 5) navigation to resources, 6) self-management, and 7) repeated contact for shaping and maintenance of behaviors. Usual care includes information only with no access to individual meetings with CES. MEASURABLE OUTCOMES Pre-specified primary outcomes include 1) adoption of treatment to reduce exposure to arsenic, nitrate, or lead in water which may include switching to bottled water and 2) engagement with well stewardship behaviors assessed at baseline, and post-6 and 12 months follow-up. Water quality will be measured at baseline and 12-month through household water tests. Secondary outcomes include increased health literacy scores and risk perception assessed at baseline and 6-month surveys. IMPLICATIONS The results will demonstrate the efficacy of a domestic well water safety program to disseminate to other CES organizations. TRIAL REGISTRATION NUMBER NCT05395663.
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Affiliation(s)
| | - Molly L Kile
- Oregon State University, College of Health, Corvallis, OR, USA
| | | | | | - Lilly Anderson
- Oregon State University, College of Health, Corvallis, OR, USA
| | - Kara Baylog
- Oregon State University, Extension Service, Southern Oregon Research and Extension Center, OR, USA
| | | | - Soyoung Choun
- Oregon State University, College of Health, Corvallis, OR, USA
| | - Robert M Kaplan
- Clinical Excellence Research Center, Stanford University School of Medicine, Palo Alto, CA, USA
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50
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Zeng W, Wan X, Lei M, Chen T. Intercropping of Pteris vittata and maize on multimetal contaminated soil can achieve remediation and safe agricultural production. Sci Total Environ 2024; 915:170074. [PMID: 38218467 DOI: 10.1016/j.scitotenv.2024.170074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Soil contamination by multimetals is widespread. Hyperaccumulator-crop intercropping has been confirmed to be an effective method for arsenic (As)- or cadmium (Cd)-contaminated soil that can achieve soil cleanup and agricultural production. However, the influencing factors and response of hyperaccumulator-crop intercropping to multimetal-contaminated soil are still unclear. In this study, intercropping of the As hyperaccumulator Pteris vittata and maize was conducted on two typical types of multimetal-contaminated soil, namely, Soil A contaminated by As, Cd, and lead (Pb) and Soil B contaminated by As, Cd, and chromium (Cr). Intercropping reduced As, Cd, and Pb in the maize grains by 60 %, 66.7 %, and 20.4 %, respectively. The concentrations of As, Cd, Pb, and Cr in P. vittata increased by 314 %, 300 %, 447.3 %, and 232.6 %, respectively, relative to their concentrations in the monoculture plants. Two soils with different levels of contamination showed that higher heavy metal content might diminish the ability of intercropping to reduce soil heavy metal risk. No notable difference in soil microbial diversity was found between the intercropped and monocultured plants. The composition of microbial communities of intercropping groups were more similar to those of monoculture P. vittata on two different soils (Soils A and B). An imbalance between the amount of As taken up by the plants and the reduction in As in the soil was observed, and this imbalance may be related to watering, As leaching, and heterogeneity of soil As distribution. Reducing the risk resulting from As leaching and enhancing the efficiency of phytoextraction should be emphasized in remediation practices.
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Affiliation(s)
- Weibin Zeng
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100089, China
| | - Xiaoming Wan
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100089, China.
| | - Mei Lei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100089, China
| | - Tongbin Chen
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100089, China
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