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Hoffman-Pennesi D, Winfield S, Gavelek A, Santillana Farakos SM, Spungen J. Infants' and young children's dietary exposures to lead and cadmium: FDA total diet study 2018-2020. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024:1-16. [PMID: 39236048 DOI: 10.1080/19440049.2024.2396910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 09/07/2024]
Abstract
Food can be a source of lead and cadmium exposure for infants and children. Employing a semi-probabilistic approach, dietary exposures to lead and cadmium were assessed for infants 0-11 months (excluding human milk-fed infants) and children 1-6 years using U.S. total diet study data from 2018 to 2020 and food consumption data from 2015 to 2018. Estimated mean lead and cadmium exposures range from 0.7-3.6 µg/day to 0.18-0.47 µg/kg bw/day, respectively, depending on the age group and method for handling non-detected values. Dietary exposures to lead and cadmium are slightly lower and slightly higher than our estimates published in 2019. In addition to the use of more recent datasets for consumption and contamination, differences may be due to the use of refined exposure assessment methodology, particularly a new system of mapping contamination data to intake data. The processed baby food and infant formula food group is the major contributor to lead and cadmium exposure, driven by intake, among infants who do not consume human milk. The food groups contributing most to children's lead and cadmium exposure are grains/baking, dairy and fruit and grains/baking and vegetables, respectively. This work will inform FDA initiatives such as closer to zero, including research needs and regulatory priorities.
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Affiliation(s)
- Dana Hoffman-Pennesi
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Sarah Winfield
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Alexandra Gavelek
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | | | - Judith Spungen
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
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Snow Caroti K, Joseph A, Sapowadia A, Michael White C. Elemental impurities (heavy metals) in kratom products: an assessment of published individual product analyses. Clin Toxicol (Phila) 2024:1-10. [PMID: 39235176 DOI: 10.1080/15563650.2024.2395552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 08/07/2024] [Accepted: 08/16/2024] [Indexed: 09/06/2024]
Abstract
INTRODUCTION Kratom is commonly used by consumers, and the elemental impurity exposure that consumers would have at different kratom ingestion doses has been determined. METHODS This assessment used original data from independent third-party laboratory testing of kratom products to identify the percentage of products that exceeded permissible daily exposure limits for lead (5 µg/day), nickel (200 µg/day), arsenic (15 µg/day), and cadmium (5 µg/day), the interim reference level for lead in adults (12.5 µg/day), and the tolerable upper intake level for manganese (11 mg/day) and nickel (1 mg/day). We assessed all products regardless of type and then evaluated non-extract products, extract products, and a soda preparation separately for elemental impurities. RESULTS Three assessments of elemental impurities in kratom products have been published, totaling 68 products. Assessing all products and assuming a 3 g daily dose of kratom, 7.4% would exceed the permissible daily exposure limits for lead, 0% for nickel, 3.1% for arsenic, and 0% for cadmium. At a kratom dose of 25 g daily, 70.6% would exceed the permissible daily exposure limits for lead, 20.6% for nickel, 9.4% for arsenic, and 0% for cadmium. The interim reference level for lead would be exceeded by 1.5% of products at a kratom daily dose of 3 g and 33.8% of products at 25 g. The tolerable upper intake level for manganese would be exceeded by 12.5% of products at a kratom daily dose of 3 g and 41.7% of products at 25 g. Non-extract products generally contain greater concentrations of elemental impurities than extract products or the soda preparation. DISCUSSION Apart from their concentrations in a gram of product, assessing the amount of exposure to elemental impurities at different kratom ingestion doses is also important. Elemental impurities exceeding regulatory permissible concentrations for many products, especially with greater daily kratom ingestion doses, may impact human health. CONCLUSIONS Some kratom products contain excessive concentrations of elemental impurities of toxicological concern, such as lead and arsenic. Non-extract products (powders, capsules, tablets) generally contain greater concentrations of elemental impurities than extract products or the soda preparation. Daily use of these products can result in exposures exceeding regulatory thresholds and adverse health effects.
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Affiliation(s)
- Kimberly Snow Caroti
- Department of Pharmacy Practice, University of Connecticut School of Pharmacy, Storrs, CT, USA
- Department of Pharmacy and Research Administration, Hartford Hospital, Hartford, CT, USA
| | - Alen Joseph
- Department of Pharmacy Practice, University of Connecticut School of Pharmacy, Storrs, CT, USA
| | - Amy Sapowadia
- Department of Pharmacy Practice, University of Connecticut School of Pharmacy, Storrs, CT, USA
| | - C Michael White
- Department of Pharmacy Practice, University of Connecticut School of Pharmacy, Storrs, CT, USA
- Department of Pharmacy and Research Administration, Hartford Hospital, Hartford, CT, USA
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Sardar MB, Raza M, Fayyaz A, Nadir MA, Nadeem ZA, Babar M. Environmental Heavy Metal Exposure and Associated Cardiovascular Diseases in Light of the Triglyceride Glucose Index. Cardiovasc Toxicol 2024:10.1007/s12012-024-09913-x. [PMID: 39212843 DOI: 10.1007/s12012-024-09913-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 08/11/2024] [Indexed: 09/04/2024]
Abstract
Cardiovascular diseases (CVD), primarily ischemic heart disease and stroke, remain leading global health burdens. Environmental risk factors have a major role in the development of CVD, particularly exposure to heavy metals. The Triglyceride Glucose Index (TyG), a measure of insulin resistance and CVD risk, is the primary focus of this study, which summarizes the most recent findings on the effects of lead (Pb), arsenic (As), and cadmium (Cd) on CVD risk. A higher risk of CVD is correlated with an elevated TyG index, which has been linked to insulin resistance. Exposure to Cd is associated with disturbance of lipid metabolism and oxidative stress, which increases the risk of CVD and TyG. Exposure reduces insulin secretion and signaling, which raises the TyG index and causes dyslipidemia. Pb exposure increases the risk of CVD and TyG index via causing oxidative stress and pancreatic β-cell destruction. These results highlight the need of reducing heavy metal exposure by lifestyle and environmental modifications in order to lower the risk of CVD. To comprehend the mechanisms and create practical management plans for health hazards associated with heavy metals, more study is required.
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Affiliation(s)
- Muhammad Bilal Sardar
- Department of Medicine, Allama Iqbal Medical College, Allama Shabbir Ahmed Usmani Road, Lahore, 54700, Pakistan.
| | - Mohsin Raza
- Department of Medicine, Allama Iqbal Medical College, Allama Shabbir Ahmed Usmani Road, Lahore, 54700, Pakistan
| | - Ammara Fayyaz
- Department of Medicine, Central Park Medical College, Lahore, Pakistan
| | - Muhammad Asfandyar Nadir
- Department of Medicine, Allama Iqbal Medical College, Allama Shabbir Ahmed Usmani Road, Lahore, 54700, Pakistan
| | - Zain Ali Nadeem
- Department of Medicine, Allama Iqbal Medical College, Allama Shabbir Ahmed Usmani Road, Lahore, 54700, Pakistan
| | - Muhammad Babar
- Department of Medicine, Social Security Hospital, Faisalabad, Pakistan
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Lima DF, Di Beneditto APM, Pestana IA, Franco RWDA. Hazardous Elements in the Edible Portion of Perna perna Mussels: Relation with the COVID-19 Pandemic Period and Assessment of the Risk to Human Health. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 87:175-186. [PMID: 39080047 DOI: 10.1007/s00244-024-01080-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/16/2024] [Indexed: 09/06/2024]
Abstract
In this work, the concentrations of hazardous elements (As, Cd and Pb) in the edible portion of the Perna perna mussel from Southeast Brazil were analyzed to understand the effects of the COVID-19 pandemic on the coastal environment and to evaluate the quality of this fishery resource. Decreases in anthropogenic chemical outputs to the environment were expected to occur during the COVID-19 pandemic, with decreases in element concentrations in mussels. The ranges of median concentrations (µg g-1 dw) in the pre- and pandemic periods were 5.4-16.1 and 2.2-10.6 for As; 0.2-0.6 and 0.1-0.5 for Cd; and 1.2-3.2 and 0.7-1.8 for Pb, respectively. Temporal variations (prepandemic x pandemic) were more significant than spatial variations (five sampling sites). The relationships between the concentrations of hazardous elements and isotopic ratios (δ15N and δ13C) suggested that food sources were more diverse across the sampling sites during the pandemic period, when individuals exhibited less efficient trophic transfer. The concentrations of Cd and Pb were below the tolerable maximum limit, whereas for As, they were above the limit; however, these concentrations are not a risk to human health, as most As was present in the least toxic organic form. The intake estimates were below the tolerable intake limits, and only Pb concentrations are at risk of causing concern if the intake of mussels increases. This is the first study in Brazil that presents a spatial-temporal comparison of hazardous elements in marine fauna considering COVID-19 as a temporal landmark. The results are of interest for both public health and environmental health management in a post-COVID-19 scenario.
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Affiliation(s)
- Dayvison Felismindo Lima
- Laboratório de Ciências Físicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego 2000, Campos Dos Goytacazes, RJ, 28013-620, Brazil
| | - Ana Paula Madeira Di Beneditto
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-620, Brazil.
| | - Inácio Abreu Pestana
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-620, Brazil
- Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Campus do Valonguinho, Outeiro de São João Batista S/N, Centro, Niterói, RJ, 24020-141, Brazil
| | - Roberto Weider de Assis Franco
- Laboratório de Ciências Físicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego 2000, Campos Dos Goytacazes, RJ, 28013-620, Brazil
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5
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Ingham JR, Donati GL, Douvris L, Bartzas G, Bussan DD, Douvris C. Commercially available mouthguards: Unearthing trace elements for the first time. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172790. [PMID: 38677440 DOI: 10.1016/j.scitotenv.2024.172790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/08/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
The use of mouthguards is advocated by the American Dental Association for orofacial injury prevention and teeth protection. However, the chemical environment in the mouth may cause harmful substances within the mouthguard's polymer material to leach out and be absorbed by the user. Considering this, the present study for the first time analyzed commercially available mouthguards and disclosed the presence of trace elements. Specifically, an analytical method was developed based on closed-vessel microwave-assisted digestion and plasma-based atomic spectrometry for determining toxic trace elements in mouthguard samples. Initially, 75 elements were assessed and, thereafter, quantified cadmium (Cd), copper (Cu) and lead (Pb) in each sample by inductively coupled plasma mass spectrometry (ICP-MS). Method validation was carried out by analyzing a certified reference material of Low-Density Polyethylene, and by addition and recovery experiments. Results for copper were further validated by ICP optical emission spectrometry (ICP-OES). While most samples exhibited elemental levels beneath the method's limit of quantification, Cd, Cu and Pb were detected in four samples. Remarkably, one sample had Cu levels exceeding safe limits by 109 times, highlighting potential toxicity risks. This initial research underscores the need for stricter contamination control in mouthguard materials to minimize potentially health hazards.
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Affiliation(s)
- Jesse R Ingham
- Department of Chemistry, Wake Forest University, Salem Hall, Box 7486, Winston-Salem, NC 27109, USA
| | - George L Donati
- Department of Chemistry, Wake Forest University, Salem Hall, Box 7486, Winston-Salem, NC 27109, USA
| | - Liliya Douvris
- Theobald Science Center, Department of Biological and Chemical Sciences, New York Institute of Technology, Old Westbury, NY 11568, USA
| | - Georgios Bartzas
- School of Mining and Metallurgical Engineering, National Technical University of Athens, 9 Heroon Polytechniou str., 157 80 Zografos, Athens, Greece
| | - Derek D Bussan
- Nistler College of Business and Public Administration, Department of Marketing, University of North Dakota, Grand Forks, ND 58202, USA
| | - Chris Douvris
- Theobald Science Center, Department of Biological and Chemical Sciences, New York Institute of Technology, Old Westbury, NY 11568, USA.
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Chen F, Zhu J, Yu L, Zhang Q, Guo M, Tian F, Zhai Q. Effect of Lactiplantibacillus plantarum CCFM8661 on serum metabolites and gut microbiota in a lead-exposed population. Int J Biol Macromol 2024; 261:129815. [PMID: 38296122 DOI: 10.1016/j.ijbiomac.2024.129815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024]
Abstract
In this study, we investigated the impact of Lactiplantibacillus plantarum (L. plantarum) CCFM8661 on the gut microbiota, and the serum and fecal metabolomes in lead (Pb)-exposed individuals. The volunteers recruited for this study were divided into two treatment groups, (i) the placebo (control) and (ii) the L. plantarum CCFM8661 treatment groups. The analysis revealed that probiotic intervention reversed some of the changes in Pb exposure-induced intestinal bacterial abundance, including the abundance of Parabacteroides, Bacteroides, Clostridiaceae, and Erysipelotrichaceae. An analysis of the fecal metabolome identified 26 differential metabolites involved in purine metabolism, unsaturated fatty acid metabolism, and other pathways. Serum metabolite analysis showed that L. plantarum CCFM8661 treatment altered the serum metabolite levels of various metabolic pathways, such as the glycerophospholipid, amino acid, and glutathione metabolism pathways. These results suggest that L. plantarum CCFM8661 may have beneficial effects on Pb-exposed populations by modulating the gut microbiota, host serum metabolism, and the metabolism of the gut microbiota.
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Affiliation(s)
- Feng Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jiamin Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Qingsong Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Min Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.; International Joint Research Laboratory for Probiotics at Jiangnan University, Wuxi, Jiangsu 214122, China
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7
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Xia Y, Wang C, Zhang X, Li J, Li Z, Zhu J, Zhou Q, Yang J, Chen Q, Meng X. Combined effects of lead and manganese on locomotor activity and microbiota in zebrafish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115260. [PMID: 37487434 DOI: 10.1016/j.ecoenv.2023.115260] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 07/08/2023] [Accepted: 07/12/2023] [Indexed: 07/26/2023]
Abstract
Exposure to lead (Pb) and manganese (Mn) during early life influences neurodevelopment and increases the risk of neurodegenerative disorders. However, the level of developmental neurotoxicity due to combined exposure to the two metals remains unclear. Although the microbiota plays an essential part in the development of the nervous system via the gut-brain axis, there is a paucity of information regarding the interactions between exposure to Pb and Mn, the destruction of the microbiome, and neurodevelopmental impacts. To fill in this knowledge gap, we investigated the developmental neurotoxicity and effects on the microbiota of Pb (0.05 mg·L-1) alone and in combination with Mn (0.3 mg·L-1) in zebrafish larvae. Our results revealed that combined exposure precipitated higher malformation rates and lower locomotor activity levels than exposure to either Pb or Mn alone. Additionally, when we separated the combined exposure group from the other groups by applying unsupervised principal coordinates analysis (PCoA) and linear discriminant analysis (LEfSe) of microflora sequencing results, we observed extensive alterations in microbial abundances under combined-exposure conditions. Functional prediction analysis showed that combined exposure contributed to altered amino acid and lipid metabolism, and also that combined exposure to Pb and Mn reflected the greatest number of differentially activated biological pathways compared to the other three groups. ATP-binding cassette G (ABCG) genes and genes related to serotonin signaling and metabolism were altered following combined Pb and Mn exposure and exhibited disparate trends vis-à-vis Pb or Mn exposure alone. According to the results, the combined exposure to Pb and Mn led to more severe effects on both zebrafish locomotor activity and gut microbial composition. We suggest that the microbiota contributes to the combined neurotoxicity by increasing ABCG5 and ABCG8 gene expression.
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Affiliation(s)
- Yuan Xia
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Chunyu Wang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xiaoshun Zhang
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Junyi Li
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Ziyi Li
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Jiawei Zhu
- Institute of Occupational Health Assessment, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong, China
| | - Qin Zhou
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Jian Yang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Qingsong Chen
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.
| | - Xiaojing Meng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China.
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Gray PJ. A survey of toxic elements in ready to eat baby foods in the US market 2021. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2023; 16:79-85. [PMID: 36537233 DOI: 10.1080/19393210.2022.2146209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
A non-targeted convenience survey was conducted in 2021 to estimate the range of total arsenic (As), cadmium (Cd), total mercury (Hg) and lead (Pb) concentrations in ready-to-eat baby foods. Four hundred samples were purchased both online and in brick-and-mortar retail. Samples included both organic and non-organic products, packaged in glass or plastic jars and foil or plastic pouches. Samples were analysed by acid assisted microwave digestion and ICP-MS with an emphasis on ultra-low detection limits. Limits of quantification were 2.26, 1.31, 0.72, and 3.14 µg/kg (ppb) for As, Cd, Hg and Pb, respectively. The median concentrations of As, Cd, Hg, and Pb in tested products were 2.60, 1.81, 0.09, and 1.38 µg/kg, respectively. Foods containing rice were more likely to contain arsenic. Foods with leafy greens, such as spinach and kale, were more likely to contain cadmium and foods with root vegetables had the highest concentrations of lead.
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Affiliation(s)
- Patrick J Gray
- Center for Food Safety and Applied Nutrition, United States Food and Drug Administration, College Park, Md, USA
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de Azevedo SM, do Nascimento LS, de Oliveira Silva L, de Almeida MG, Azevedo LS, Constantino WD, Bastos WR, Pestana IA. Flood pulse as a driving force of Pb variation in four fish guilds from Puruzinho Lake (western Amazon). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38728-38737. [PMID: 36585592 DOI: 10.1007/s11356-022-25015-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
The Brazilian Amazon is heavily impacted by mining activities, especially by gold and cassiterite mining. Pb is a contaminant released during cassiterite extraction, and it stands out for its high toxicity. The present study aimed to evaluate the effect of flood pulse on Pb dynamics in four fish species with different feeding habits (Cichlapleiozona: carnivorous, Mylossomaduriventre: herbivorous, Prochilodus nigricans: detritivorous, and Serrasalmus rhombeus: piscivorous) over four hydrological periods in Puruzinho Lake (Brazilian Amazon), which receives water from the Madeira River. The risk assessment for daily Pb intake through the consumption of these fish by the local riverside population was also carried out. Fish species were sampled during four Amazonian hydrological periods: rising water, high water, falling water, and low water. Pb and stable isotopes (δ15N and δ13C) measurements were carried out on fish muscle. The flood pulse had the same effect on Pb concentrations of all the fish species regardless of their feeding habits, as we found a nonsignificant interaction between these variables. The Pb in fish muscle increased in the flood season (rising and high water) and decreased in the dry season (falling and low water). The Pb concentration in fish increased significantly with their trophic level (δ15N), evidencing the occurrence of biomagnification of the element along the trophic chain (R2 = 0.24). The main food source of the herbivorous fish (δ13C) was very distinct from that of the others, which had a large overlap in their values. Regarding risk assessment, the daily Pb intake through consumption of the herbivorous species during high water (17.82 ± 19.68 µg∙day-1) exceeded the limit determined by the Food and Drug Administration (FDA) of 12.5 µg∙day-1, representing a health risk to the riverside population of Puruzinho Lake.
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Affiliation(s)
- Sophia Menezes de Azevedo
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil
| | - Luiza Silva do Nascimento
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil
| | - Layra de Oliveira Silva
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil
| | - Marcelo Gomes de Almeida
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil
| | - Lucas Silva Azevedo
- Divisão de Fauna E Flora, Gerência de Licenciamento, Diretoria de Licenciamento E Outorga, Instituto Água E Terra, Street Engenheiro Rebouças, 1206-Rebouças-CEP, Curitiba, Paraná, 80215-000, Brazil
| | - Wendel Dias Constantino
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil
| | - Wanderley Rodrigues Bastos
- Laboratório de Biogeoquímica Ambiental Wolfgang C. Pfeiffer, Universidade Federal de Rondônia, Av. Pres. Dutra, 2967-Olaria-CEP, Porto Velho, Rondônia, 76801-059, Brazil
| | - Inácio Abreu Pestana
- Laboratório de Ciências Ambientais, Centro de Biociências E Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000-Parque Califórnia-CEP, Rio de Janeiro, Campos Dos Goytacazes, 28013-602, Brazil.
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10
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Ni J, Li Z, Lu Y, Zhang H, Wang G, Xie J, Xie J, Wang Y, Zhang Y, Wang K, Mao W, Peng B. Relationship between exposure to cadmium, lead, and mercury and the occurrence of urinary incontinence in women. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:68410-68421. [PMID: 35543783 DOI: 10.1007/s11356-022-20598-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Cadmium, lead, and mercury are nephrotoxic metals that are commonly found as hazardous pollutants in many areas of the USA. We examined the relationship between exposure to cadmium, lead, and mercury with the occurrence of urgency urinary incontinence (UUI) and stress urinary incontinence (SUI) in women. This study was conducted using data on women > 20 years of age, collected between 2005 and 2016, who reported experiencing urinary incontinence in the National Health and Nutrition Examination Survey (NHANES). Restricted cubic spline analysis was used to characterize a dose-response relationship between continuous exposure to different nephrotoxic metals and the occurrence of UUI and SUI. A total of 4406 women were included in this study, with 2624 (59.6%) suffering from SUI and 3177 (72.1%) suffering from UUI in the weighted population. The results of our multivariate analysis indicated that age, race, marital status, body mass index (BMI), and exposure to nephrotoxic metals were risk factors for developing UI. The odds ratio (OR; 95% confidence interval) for developing UI was positively correlated with the exposure to cadmium and lead in women. The OR of SUI occurrence increased with increasing levels of cadmium in blood, with a peak at 4 µg/L. The OR of UUI occurrence increased with increasing levels of blood and urinary lead, with peaks at 7 µg/dL and 5 µg/L, respectively. The presence of mercury was not significantly correlated with the occurrence of SUI or UUI. Exposure to high levels of cadmium and lead, which are nephrotoxic metals, is associated with the occurrence of UI in women.
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Affiliation(s)
- Jinliang Ni
- Shanghai Clinical College, Anhui Medical University, Shanghai, 200072, China
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, 200433, China
| | - Ziye Li
- Shanghai Clinical College, Anhui Medical University, Shanghai, 200072, China
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, China
| | - Yi Lu
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, 200433, China
| | - Houliang Zhang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Guangchun Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Jinbo Xie
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Jun Xie
- Shanghai Clinical College, Anhui Medical University, Shanghai, 200072, China
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Yidi Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Yifan Zhang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
| | - Keyi Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, 200433, China
| | - Weipu Mao
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, 200433, China
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China
| | - Bo Peng
- Shanghai Clinical College, Anhui Medical University, Shanghai, 200072, China.
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, 301 Yanchang Road, Jing'an District, 200072, Shanghai, People's Republic of China.
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11
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Public Health Implications and Possible Sources of Lead (Pb) as a Contaminant of Poorly Regulated Kratom Products in the United States. TOXICS 2022; 10:toxics10070398. [PMID: 35878303 PMCID: PMC9320411 DOI: 10.3390/toxics10070398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 02/04/2023]
Abstract
Kratom (Mitragyna speciosa) is a tropical tree that is indigenous to Southeast Asia. Kratom leaf products have been used in traditional folk medicine for their unique combination of stimulant and opioid-like effects. Kratom is being increasingly used in the West for its reputed benefits in the treatment of pain, depression, and opioid use disorder (OUD). Recent studies from the United States Food and Drug Administration (FDA, Silver Spring, MD, USA) and our laboratory have shown that many kratom products being sold in the United States are contaminated with potentially hazardous levels of lead (Pb). In this commentary, we discuss the public health implications of the presence of Pb in kratom products, particularly as they relate to the predicted levels of Pb exposure among kratom users. We also considered the specific toxic effects of Pb and how they might relate to the known physiologic and toxicologic effects of kratom. Finally, we consider the possible sources of Pb in kratom products and suggest several areas for research on this issue.
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12
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Chirinos-Peinado D, Castro-Bedriñana J, Ríos-Ríos E, Mamani-Gamarra G, Quijada-Caro E, Huacho-Jurado A, Nuñez-Rojas W. Lead and Cadmium Bioaccumulation in Fresh Cow's Milk in an Intermediate Area of the Central Andes of Peru and Risk to Human Health. TOXICS 2022; 10:317. [PMID: 35736925 PMCID: PMC9227626 DOI: 10.3390/toxics10060317] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/04/2022] [Accepted: 06/05/2022] [Indexed: 02/01/2023]
Abstract
The dairy basin of the Mantaro River located in the centre of Peru faces serious anthropogenic disturbances as it receives emissions and discharges from the metallurgical mining activity located in the headwaters of the basin and milk contaminated with lead (Pb) and cadmium (Cd) endangers the environmental and human health, especially children. To measure the concentrations of Pb and Cd in milk and the dangers of their consumption in the Peruvian population, 40 milk samples were collected and quantified by atomic absorption spectrometry. The mean concentration of Pb in milk was 15 ± 2.6 µg/kg, which represented 75% of the Maximum Limit (ML), and that of Cd was 505 ± 123 µg/kg, which exceeded the ML by more than 194 times. The estimated weekly intake of Pb for people aged 2−85 years was below the Provisional Tolerable Weekly Intake (PTWI) references, determining risk coefficients (CRD) < 1. Weekly Cd intake was much higher than the PTWIs and CRDs were between 14 and 34, indicating that consumers would experience carcinogenic health effects, with children being at higher risk than adults, therefore, milk from the area is not safe for consumption. Cd would be transferred mainly through the soil (water)-grass-milk pathway, due to its presence in irrigation water and in fertilizers that contain Cd. The main pathway for Pb entry would be air-soil (water)-milk grass, from the fine particles emitted into the air by the mining-metallurgical activity, developed approximately 90 km from the study area.
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Affiliation(s)
- Doris Chirinos-Peinado
- Food and Nutritional Security Research Centre, Universidad Nacional del Centro del Perú, Huancayo 12006, Peru;
| | - Jorge Castro-Bedriñana
- Food and Nutritional Security Research Centre, Universidad Nacional del Centro del Perú, Huancayo 12006, Peru;
| | - Elva Ríos-Ríos
- Faculty of Science, Universidad Nacional Agraria La Molina, Lima 15024, Peru;
| | | | - Elías Quijada-Caro
- Faculty of Zootechnics, Universidad Nacional del Centro del Perú, Huancayo 12006, Peru; (E.Q.-C.); (A.H.-J.)
| | - Analí Huacho-Jurado
- Faculty of Zootechnics, Universidad Nacional del Centro del Perú, Huancayo 12006, Peru; (E.Q.-C.); (A.H.-J.)
| | - Wilfredo Nuñez-Rojas
- Specialized Research Institute, Faculty of Zootechnics, Universidad Nacional del Centro del Perú, Huancayo 12006, Peru;
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13
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Quality Control, Anti-Hyperglycemic, and Anti-Inflammatory Assessment of Colvillea racemosa Leaves Using In Vitro, In Vivo Investigations and Its Correlation with the Phytoconstituents Identified via LC-QTOF-MS and MS/MS. PLANTS 2022; 11:plants11060830. [PMID: 35336712 PMCID: PMC8948708 DOI: 10.3390/plants11060830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 01/23/2023]
Abstract
Colvillea racemosa is a cultivated ornamental plant that is a monotypic genus of Fabaceae. It is native to Madagascar, with limited studies. For the first time, the leaf quality control parameters, the anti-hyperglycemic and anti-inflammatory in vitro activity of Colvillea racemosa ethanol extract (CRE) and its fractions of petroleum ether (CRP), methylene chloride (CRMC), ethyl acetate (CREA), n-butanol (CRB), and methanol (CRME) were evaluated. It exhibited significant inhibition against α-amylase, α-glucosidase and membrane stabilization. CRB was the most active fraction, and in vivo studies revealed that oral treatment with CRB of STZ-induced diabetic rats efficiently lowered blood glucose by 67.78%, reduced serum nitric oxide and lipid peroxide levels by 41.23% and 38.45%, respectively, and increased the GSH level by 90.48%. In addition, compared with the diabetic group, there was a 52.2% decrease in serum VCAM, a 55.5% increase in paraoxonase, an improved lipid profile, and improved liver and kidney functions for a treated diabetic group with CRB. Metabolite profiling of CRB was determined by UPLC-ESI-QTOF-MS and tandem MS/MS. Twenty-three chromatographic peaks were identified, which were classified into phenolic compounds and amino acids. The characterized flavonoids were apigenin and luteolin derivatives.
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14
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Javorac D, Tatović S, Anđelković M, Repić A, Baralić K, Djordjevic AB, Mihajlović M, Stevuljević JK, Đukić-Ćosić D, Ćurčić M, Antonijević B, Bulat Z. Low-lead doses induce oxidative damage in cardiac tissue: Subacute toxicity study in Wistar rats and Benchmark dose modelling. Food Chem Toxicol 2022; 161:112825. [PMID: 35045334 DOI: 10.1016/j.fct.2022.112825] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/28/2021] [Accepted: 01/13/2022] [Indexed: 02/08/2023]
Abstract
Exposure to toxic metals, including lead (Pb), were found as important risk factor for cardiovascular diseases. The aim of the study was to simulate low-level subacute Pb exposure scenario and to determine redox status, redox scores (OXY-score, damage score and protective score) and copper (Cu), zinc (Zn), iron (Fe) and manganese (Mn) levels in cardiac tissue of Wistar rats. Based on the obtained results we have established dose-toxic response relationship and derived Benchmark dose. The male Wistar rats were divided in seven groups (n = 6), six threated groups that received 0.1; 0.5; 1; 3; 7; 15 mg Pb/kg body weight/day for 28 days, by oral gavage and control group. The results of the presented study demonstrated that Pb affect cardiac tissue by inducing production of superoxide anion radical (O2.-) and consequently raising malondialdehyde (MDA) levels. The positive trend in OXY-score and damage score were determined. Effect size analysis showed that the main toxic effects were oxidative damage and elevation of MDA. The lowest BMD was calculated for MDA (2.2e-0.6 mg Pb/kg b.w./day). Obtained BMD may be useful in further assessing point of departure in the human health risks assessment of low-level Pb exposure scenario.
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Affiliation(s)
- Dragana Javorac
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia.
| | - Simona Tatović
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | | | - Aleksandra Repić
- Institute of Forensic Medicine, Faculty of Medicine University of Belgrade, 11000, Belgrade, Serbia
| | - Katarina Baralić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Aleksandra Buha Djordjevic
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Marija Mihajlović
- Department of Medical Biochemistry, University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Jelena Kotur Stevuljević
- Department of Medical Biochemistry, University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Danijela Đukić-Ćosić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Marijana Ćurčić
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Biljana Antonijević
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
| | - Zorica Bulat
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade - Faculty of Pharmacy, 11221, Belgrade, Serbia
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15
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Cadmium and Lead Exposure, Nephrotoxicity, and Mortality. TOXICS 2020; 8:toxics8040086. [PMID: 33066165 PMCID: PMC7711868 DOI: 10.3390/toxics8040086] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 12/11/2022]
Abstract
The present review aims to provide an update on health risks associated with the low-to-moderate levels of environmental cadmium (Cd) and lead (Pb) to which most populations are exposed. Epidemiological studies examining the adverse effects of coexposure to Cd and Pb have shown that Pb may enhance the nephrotoxicity of Cd and vice versa. Herein, the existing tolerable intake levels of Cd and Pb are discussed together with the conventional urinary Cd threshold limit of 5.24 μg/g creatinine. Dietary sources of Cd and Pb and the intake levels reported for average consumers in the U.S., Spain, Korea, Germany and China are summarized. The utility of urine, whole blood, plasma/serum, and erythrocytes to quantify exposure levels of Cd and Pb are discussed. Epidemiological studies that linked one of these measurements to risks of chronic kidney disease (CKD) and mortality from common ailments are reviewed. A Cd intake level of 23.2 μg/day, which is less than half the safe intake stated by the guidelines, may increase the risk of CKD by 73%, and urinary Cd levels one-tenth of the threshold limit, defined by excessive ß2-microglobulin excretion, were associated with increased risk of CKD, mortality from heart disease, cancer of any site and Alzheimer's disease. These findings indicate that the current tolerable intake of Cd and the conventional urinary Cd threshold limit do not provide adequate health protection. Any excessive Cd excretion is probably indicative of tubular injury. In light of the evolving realization of the interaction between Cd and Pb, actions to minimize environmental exposure to these toxic metals are imperative.
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Environmental Pollution Effect Analysis of Lead Compounds in China Based on Life Cycle. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17072184. [PMID: 32218260 PMCID: PMC7177610 DOI: 10.3390/ijerph17072184] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 01/29/2023]
Abstract
Environmental pollution caused by lead toxicity causes harm to human health. Lead pollution in the environment mainly comes from the processes of mining, processing, production, use, and recovery of lead. China is the world’s largest producer and consumer of refined lead. In this paper, the material flow analysis method is used to analyze the flow and direction of lead loss in four stages of lead production, manufacturing, use, and waste management in China from 1949 to 2017. The proportion coefficient of lead compounds in each stage of lead loss was determined. The categories and quantities of lead compounds discharged in each stage were calculated. The results show that in 2017, China emitted 2.1519 million tons of lead compounds. In the four stages of production, manufacturing, use, and waste management, 137.9 kilo tons, 209 kilo tons, 275 kilo tons, and 1.53 million tons were respectively discharged. The emissions in the production stage are PbS, PbO, PbSO4, PbO2, Pb2O3, and more. The emissions during the manufacturing phase are Pb, PbO, PbSO4, Pb2O3, Pb3O4, and more. The main emissions are Pb, PbO, Pb2O3, Pb3O4, and more. The main emissions in the waste management stage are PbS, Pb, PbO, PbSO4, PbO2, PbCO3, Pb2O3, Pb3O4, and more. Among them, the emissions of PbSO4, PbO, Pb, and PbO2 account for about 90%, which are the main environmental pollution emissions. The waste management stage is an important control source of lead compound emission and pollution. In view of these characteristics of the environmental pollution risk of lead compounds in China, the government should issue more targeted policies to control lead pollution.
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