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Wei Y, Amini H, Qiu X, Castro E, Jin T, Yin K, Vu BN, Healy J, Feng Y, Zhang J, Coull B, Schwartz J. Grouped mixtures of air pollutants and seasonal temperature anomalies and cardiovascular hospitalizations among U.S. Residents. Environ Int 2024; 187:108651. [PMID: 38648692 DOI: 10.1016/j.envint.2024.108651] [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: 01/21/2024] [Revised: 03/20/2024] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Air pollution is a recognized risk factor for cardiovascular disease (CVD). Temperature is also linked to CVD, with a primary focus on acute effects. Despite the close relationship between air pollution and temperature, their health effects are often examined separately, potentially overlooking their synergistic effects. Moreover, fewer studies have performed mixture analysis for multiple co-exposures, essential for adjusting confounding effects among them and assessing both cumulative and individual effects. METHODS We obtained hospitalization records for residents of 14 U.S. states, spanning 2000-2016, from the Health Cost and Utilization Project State Inpatient Databases. We used a grouped weighted quantile sum regression, a novel approach for mixture analysis, to simultaneously evaluate cumulative and individual associations of annual exposures to four grouped mixtures: air pollutants (elemental carbon, ammonium, nitrate, organic carbon, sulfate, nitrogen dioxide, ozone), differences between summer and winter temperature means and their long-term averages during the entire study period (i.e., summer and winter temperature mean anomalies), differences between summer and winter temperature standard deviations (SD) and their long-term averages during the entire study period (i.e., summer and winter temperature SD anomalies), and interaction terms between air pollutants and summer and winter temperature mean anomalies. The outcomes are hospitalization rates for four prevalent CVD subtypes: ischemic heart disease, cerebrovascular disease, heart failure, and arrhythmia. RESULTS Chronic exposure to air pollutant mixtures was associated with increased hospitalization rates for all CVD subtypes, with heart failure being the most susceptible subtype. Sulfate, nitrate, nitrogen dioxide, and organic carbon posed the highest risks. Mixtures of the interaction terms between air pollutants and temperature mean anomalies were associated with increased hospitalization rates for all CVD subtypes. CONCLUSIONS Our findings identified critical pollutants for targeted emission controls and suggested that abnormal temperature changes chronically affected cardiovascular health by interacting with air pollution, not directly.
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Affiliation(s)
- Yaguang Wei
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Heresh Amini
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Xinye Qiu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Edgar Castro
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Tingfan Jin
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Kanhua Yin
- Department of Surgery, University of Missouri-Kansas City School of Medicine, Kansas City, MO, USA
| | - Bryan N Vu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - James Healy
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Yijing Feng
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jiangshan Zhang
- Department of Statistics, University of California, Davis, CA, USA
| | - Brent Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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2
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Hwang J, Kim HJ. Association of ambient air pollution with hemoglobin levels and anemia in the general population of Korean adults. BMC Public Health 2024; 24:988. [PMID: 38594672 PMCID: PMC11003135 DOI: 10.1186/s12889-024-18492-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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/31/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Emerging evidence has suggested significant associations between ambient air pollution and changes in hemoglobin levels or anemia in specific vulnerable groups, but few studies have assessed this relationship in the general population. This study aimed to evaluate the association between long-term exposure to air pollution and hemoglobin concentrations or anemia in general adults in South Korea. METHODS A total of 69,830 Korean adults from a large-scale nationwide survey were selected for our final analysis. Air pollutants included particulate matter with an aerodynamic diameter less than or equal to 10 micrometers (PM10), particulate matter with an aerodynamic diameter less than or equal to 2.5 micrometers, nitrogen dioxide, sulfur dioxide (SO2), and carbon monoxide (CO). We measured the serum hemoglobin concentration to assess anemia for each participant. RESULTS In the fully adjusted model, exposure levels to PM10, SO2, and CO for one and two years were significantly associated with decreased hemoglobin concentrations (all p < 0.05), with effects ranging from 0.15 to 0.62% per increase in interquartile range (IQR) for each air pollutant. We also showed a significant association of annual exposure to PM10 with anemia (p = 0.0426); the odds ratio (OR) [95% confidence interval (CI)] for anemia per each increase in IQR in PM10 was estimated to be 1.039 (1.001-1.079). This association was also found in the 2-year duration of exposure (OR = 1.046; 95% CI = 1.009-1.083; adjusted Model 2). In addition, CO exposure during two years was closely related to anemia (OR = 1.046; 95% CI = 1.004-1.091; adjusted Model 2). CONCLUSIONS This study provides the first evidence that long-term exposure to air pollution, especially PM10, is significantly associated with reduced hemoglobin levels and anemia in the general adult population.
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Affiliation(s)
- Juyeon Hwang
- Cancer Big Data Center, National Cancer Control Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, 10408, Goyang-si Gyeonggi-do, South Korea
| | - Hyun-Jin Kim
- Cancer Big Data Center, National Cancer Control Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, 10408, Goyang-si Gyeonggi-do, South Korea.
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Berroug L, Laaroussi M, Essaidi O, Malqui H, Anarghou H, Chaoui AA, Najimi M, Chigr F. Sex-specific neurobehavioral and biochemical effects of developmental exposure to Malathion in offspring mice. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:2215-2231. [PMID: 37804342 DOI: 10.1007/s00210-023-02749-2] [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] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/25/2023] [Indexed: 10/09/2023]
Abstract
Malathion is an organophosphate pesticide (OP) commonly used in agriculture, industry, and veterinary medicine. Sex is a crucial factor in responding to neurotoxicants, yet the sex-specific effects of OP exposure, particularly neurological impairments following chronic low-level exposure remains limited. Our study aims to evaluate the neurobehavioral and biochemical effects of developmental exposure to Malathion across sexes. Pregnant mice were exposed to a low oral dose of Malathion from gestation up to the weaning of the pups, which were individually gavaged with a similar dose regimen until postnatal day 70. Our results show that Malathion decreased body weight and food intake, reduced locomotor activity and recognition memory. Motor coordination and special memory were only altered in females, whereas we found a male-specific effect of Malathion on social behavior and marble burying. These alterations were accompanied by increased malondialdehyde (MDA), decreased brain acetylcholinesterase activity (AChE), and disrupted brain redox homeostasis. Our findings about the effects of Malathion exposure across sexes may, in part, contribute to understanding the dimorphic susceptibilities observed in neurological disorders.
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Affiliation(s)
- Laila Berroug
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Meriem Laaroussi
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Oumaima Essaidi
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Hafsa Malqui
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Hammou Anarghou
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Ahmed Ait Chaoui
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Mohamed Najimi
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Fatiha Chigr
- Biological Engineering Laboratory, Faculty of Science and Technology, Sultan Moulay Slimane University, Beni Mellal, Morocco.
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Danesh Yazdi M, Amini H, Wei Y, Castro E, Shi L, Schwartz JD. Long-term exposure to PM2.5 species and all-cause mortality among Medicare patients using mixtures analyses. Environ Res 2024; 246:118175. [PMID: 38215924 DOI: 10.1016/j.envres.2024.118175] [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: 10/15/2023] [Revised: 12/23/2023] [Accepted: 01/09/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND The relationship between long-term exposure to PM2.5 and mortality is well-established; however, the role of individual species is less understood. OBJECTIVES In this study, we assess the overall effect of long-term exposure to PM2.5 as a mixture of species and identify the most harmful of those species while controlling for the others. METHODS We looked at changes in mortality among Medicare participants 65 years of age or older from 2000 to 2018 in response to changes in annual levels of 15 PM2.5 components, namely: organic carbon, elemental carbon, nickel, lead, zinc, sulfate, potassium, vanadium, nitrate, silicon, copper, iron, ammonium, calcium, and bromine. Data on exposure were derived from high-resolution, spatio-temporal models which were then aggregated to ZIP code. We used the rate of deaths in each ZIP code per year as the outcome of interest. Covariates included demographic, temperature, socioeconomic, and access-to-care variables. We used a mixtures approach, a weighted quantile sum, to analyze the joint effects of PM2.5 species on mortality. We further looked at the effects of the components when PM2.5 mass levels were at concentrations below 8 μg/m3, and effect modification by sex, race, Medicaid status, and Census division. RESULTS We found that for each decile increase in the levels of the PM2.5 mixture, the rate of all-cause mortality increased by 1.4% (95% CI: 1.3%-1.4%), the rate of cardiovascular mortality increased by 2.1% (95% CI: 2.0%-2.2%), and the rate of respiratory mortality increased by 1.7% (95% CI: 1.5%-1.9%). These effects estimates remained significant and slightly higher when we restricted to lower concentrations. The highest weights for harmful effects were due to organic carbon, nickel, zinc, sulfate, and vanadium. CONCLUSIONS Long-term exposure to PM2.5 species, as a mixture, increased the risk of all-cause, cardiovascular, and respiratory mortality.
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Affiliation(s)
- Mahdieh Danesh Yazdi
- Program in Public Health, Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA; Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA.
| | - Heresh Amini
- Department of Environmental Medicine and Public Health, Institute for Climate Change, Environmental Health, and Exposomics, Icahn School of Medicine, New York, NY, USA
| | - Yaguang Wei
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Edgar Castro
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Liuhua Shi
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Joel D Schwartz
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
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Li X, Zhang Q, Wang A, Shan S, Wang X, Wang Y, Wan J, Ning P, Hong C, Tian H, Zhao Y. Hepatotoxicity induced in rats by chronic exposure to F-53B, an emerging replacement of perfluorooctane sulfonate (PFOS). Environ Pollut 2024; 346:123544. [PMID: 38367689 DOI: 10.1016/j.envpol.2024.123544] [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: 11/18/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/19/2024]
Abstract
A plethora of studies have shown the prominent hepatotoxicity caused by perfluorooctane sulfonate (PFOS), yet the research on the causality of F-53 B (an alternative for PFOS) exposure and liver toxicity, especially in mammals, is largely limited. To investigate the effects that chronic exposure to F-53 B exert on livers, in the present study, male SD rats were administrated with F-53 B in a certain dose range (0, 1, 10, 100, 1000 μg/L, eight rats per group) for 6 months via drinking water and the hepatotoxicity resulted in was explored. We reported that chronic exposure to 100 and 1000 μg/L F-53 B induced remarkable histopathological changes in liver tissues such as distinct swollen cells and portal vein congestion. In addition, the increase of cytokines IL-6, IL-2, and IL-8 upon long-term administration of F-53 B demonstrated the high level of inflammation. Moreover, F-53 B exposure was revealed to disrupt the lipid metabolism in the rat livers, mainly manifesting as the upregulation of some proteins involved in lipid synthesis and degradation, including ACC, FASN, SREBP-1c as well as ACOX1. These findings provided new evidence for the adverse effects caused by chronic exposure to F-53 B in rodents. It is crucial for industries, regulatory agencies as well as the public to remain vigilant about the adverse health effects associated with the emerging PFOS substitutes such as F-53 B. Implementation of regular monitoring and risk assessments is of great importance to alleviate environmental concerns towards PFOS alternatives exposure, and furthermore, to minimize the latent health risks to the public health.
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Affiliation(s)
- Xiaohan Li
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China
| | - Qian Zhang
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China
| | - Aiqing Wang
- Department of Experimental Center, Suzhou Medical College, Soochow University, Suzhou, China
| | - Shan Shan
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China
| | - Xueying Wang
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China
| | - Yarong Wang
- Department of Experimental Center, Suzhou Medical College, Soochow University, Suzhou, China
| | - Jianmei Wan
- Department of Experimental Center, Suzhou Medical College, Soochow University, Suzhou, China
| | - Ping Ning
- Department of Experimental Center, Suzhou Medical College, Soochow University, Suzhou, China
| | - Chengjiao Hong
- Department of Experimental Center, Suzhou Medical College, Soochow University, Suzhou, China
| | - Hailin Tian
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China
| | - Yun Zhao
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College, Soochow University, Suzhou, China.
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Erban T, Markovic M, Sopko B. Sublethal acetamiprid exposure induces immunity, suppresses pathways linked to juvenile hormone synthesis in queens and affects cycle-related signaling in emerging bees. Environ Pollut 2024; 349:123901. [PMID: 38556147 DOI: 10.1016/j.envpol.2024.123901] [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: 01/27/2024] [Revised: 03/05/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Acetamiprid is the only neonicotinoid registered in the European Union because the risks of neonicotinoids to honey bees and other pollinators are strictly regulated. Herein, we orally exposed honey bee colonies to sublethal concentrations of acetamiprid (20 μg/L) under isolated conditions. After one month of continuous exposure, the emerging bees and queens were collected and analyzed via high-throughput label-free quantitative proteomics using a data-independent acquisition strategy. Six and 34 significantly differentially expressed proteins (DEPs) were identified in the emerging bees and queens, respectively. Mrjp3 was the only DEP found in both sample types/castes, and its opposite regulation illustrated a differential response. The DEPs in the emerging bees (H/ACA RNP, Rap1GAP, Mrjp3, and JHE) suggested that sublethal exposure to acetamiprid affected cell cycle-related signaling, which may affect the life history of workers in the colony. The DEPs with increased levels in queens, such as Mrjps 1-4 and 6-7, hymenoptaecin, and apidaecin 22, indicated an activated immune response. Additionally, the level of farnesyl pyrophosphate synthase (FPPS), which is essential for the mevalonate pathway and juvenile hormone biosynthesis, was significantly decreased in queens. The impaired utilization of juvenile hormone in queens supported the identification of additional DEPs. Furthermore, the proteome changes suggested the existence of increased neonicotinoid detoxification by UDP-glucuronosyltransferase and increased amino acid metabolism. The results suggest that the continuous exposure of bee colonies to acetamiprid at low doses (nanograms per gram in feed) may pose a threat to the colonies. The different exposure routes and durations for the emerging bees and queens in our experiment must be considered, i.e., the emerging bees were exposed as larvae via feeding royal jelly and beebread provided by workers (nurse bees), whereas the queens were fed royal jelly throughout the experiment. The biological consequences of the proteomic changes resulting from sublethal/chronic exposure require future determination.
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Affiliation(s)
- Tomas Erban
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia.
| | - Martin Markovic
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia
| | - Bruno Sopko
- Crop Research Institute, Drnovska 507/73, Prague 6-Ruzyne, CZ-161 06, Czechia
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Jia PP, Li Y, Zhang LC, Wu MF, Li TY, Pei DS. Metabolome evidence of CKDu risks after chronic exposure to simulated Sri Lanka drinking water in zebrafish. Ecotoxicol Environ Saf 2024; 273:116149. [PMID: 38412632 DOI: 10.1016/j.ecoenv.2024.116149] [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: 12/28/2023] [Revised: 02/10/2024] [Accepted: 02/22/2024] [Indexed: 02/29/2024]
Abstract
It is still a serious public health issue that chronic kidney disease of uncertain etiology (CKDu) in Sri Lanka poses challenges in identification, prevention, and treatment. What environmental factors in drinking water cause kidney damage remains unclear. This study aimed to investigate the risks of various environmental factors that may induce CKDu, including water hardness, fluoride (HF), heavy metals (HM), microcystin-LR (MC-LR), and their combined exposure (HFMM). The research focused on comprehensive metabolome analysis, and correlation with transcriptomic and gut microbiota changes. Results revealed that chronic exposure led to kidney damage and pancreatic toxicity in adult zebrafish. Metabolomics profiling showed significant alterations in biochemical processes, with enriched metabolic pathways of oxidative phosphorylation, folate biosynthesis, arachidonic acid metabolism, FoxO signaling pathway, lysosome, pyruvate metabolism, and purine metabolism. The network analysis revealed significant changes in metabolites associated with renal function and diseases, including 20-Hydroxy-LTE4, PS(18:0/22:2(13Z,16Z)), Neuromedin N, 20-Oxo-Leukotriene E4, and phenol sulfate, which are involved in the fatty acyls and glycerophospholipids class. These metabolites were closely associated with the disrupted gut bacteria of g_ZOR0006, g_Pseudomonas, g_Tsukamurella, g_Cetobacterium, g_Flavobacterium, which belonged to dominant phyla of Firmicutes and Proteobacteria, etc., and differentially expressed genes (DEGs) such as egln3, ca2, jun, slc2a1b, and gls2b in zebrafish. Exploratory omics analyses revealed the shared significantly changed pathways in transcriptome and metabolome like calcium signaling and necroptosis, suggesting potential biomarkers for assessing kidney disease.
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Affiliation(s)
- Pan-Pan Jia
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Yan Li
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Lan-Chen Zhang
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Ming-Fei Wu
- School of Public Health, Chongqing Medical University, Chongqing 400016, China
| | - Tian-Yun Li
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - De-Sheng Pei
- School of Public Health, Chongqing Medical University, Chongqing 400016, China.
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Dai Y, Yang W, Song H, He X, Guan R, Wu Z, Jiang X, Li M, Liu P, Chen J. Long-term effects of chronic exposure to electronic cigarette aerosol on the cardiovascular and pulmonary system in mice: A comparative study to cigarette smoke. Environ Int 2024; 185:108521. [PMID: 38508052 DOI: 10.1016/j.envint.2024.108521] [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: 11/01/2023] [Revised: 02/03/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024]
Abstract
Electronic cigarettes (e-cigarettes) have rapidly gained popularity as alternatives to traditional combustible cigarettes. However, their long-term health impact remains uncertain. This study aimed to investigate the effects of chronic exposure to e-cigarette aerosol (ECA) in mice compared to conventional cigarette smoke (CS) exposure. The mice were exposed to air (control), low, medium, or high doses of ECA, or a reference CS dose orally and nasally for eight months. Various cardiovascular and pulmonary assessments have been conducted to determine the biological and prosthetic effects. Histopathological analysis was used to determine structural changes in the heart and lungs. Biological markers associated with fibrosis, inflammation, and oxidative stress were investigated. Cardiac proteomic analysis was applied to reveal the shared and unique protein expression changes in ECA and CS groups, which related to processes such as immune activation, lipid metabolism, and intracellular transport. Overall, chronic exposure to ECA led to adverse cardiovascular and pulmonary effects in mice, although they were less pronounced than those of CS exposure. This study provides evidence that e-cigarettes may be less harmful than combustible cigarettes for the long-term health of the cardiovascular and respiratory systems in mice. However, further human studies are needed to clarify the long-term health risks associated with e-cigarette use.
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Affiliation(s)
- Yuxing Dai
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wanchun Yang
- Jieyang Medical Research Center, Jieyang People's Hospital, Jieyang, Guangdong, China
| | - Hongjia Song
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiangjun He
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ruoqing Guan
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zehong Wu
- RELX Science Center, Shenzhen RELX Tech. Co. Ltd., Shenzhen 518101, China
| | - Xingtao Jiang
- RELX Science Center, Shenzhen RELX Tech. Co. Ltd., Shenzhen 518101, China
| | - Min Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China; National and Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Peiqing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China; National and Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Jianwen Chen
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China; National and Local Joint Engineering Laboratory of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
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Coelho N, Camarinho R, Garcia P, Rodrigues AS. Histological evidence of hypothyroidism in mice chronically exposed to conventional farming. Environ Toxicol Pharmacol 2024; 106:104387. [PMID: 38364936 DOI: 10.1016/j.etap.2024.104387] [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: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024]
Abstract
Worldwide, disorders of the thyroid gland are a growing concern; such can be caused by exposure to contaminants, including agrochemicals used in conventional agriculture, which act as endocrine disruptors. The purpose of this study is to evaluate whether or not exposure to an environment with conventional agriculture leads to thyroid disruption. Mus musculus were used as bioindicator species, captured in two sites: a farm where conventional agriculture is practiced, and a place without agriculture. Thyroid histomorphometric and morphologic data were analyzed. The impacts of the agricultural environment over the thyroid were revealed, as indications of hypothyroidism were observed in exposed mice: the area and volume of epithelial cells were much lower. Alterations in thyroid histomorphology were also observed: lower follicular sphericity, irregularly delimited epithelium and increased exfoliation into the colloid. These results highlight the need for transition from current conventional agricultural systems towards organic systems.
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Affiliation(s)
- Nádia Coelho
- FCT, Faculty of Sciences and Technology, University of the Azores, Ponta Delgada 9501-801, Portugal.
| | - Ricardo Camarinho
- FCT, Faculty of Sciences and Technology, University of the Azores, Ponta Delgada 9501-801, Portugal; IVAR, Institute of Volcanology and Risks Assessment, University of the Azores, Ponta Delgada 9501-801, Portugal.
| | - Patrícia Garcia
- FCT, Faculty of Sciences and Technology, University of the Azores, Ponta Delgada 9501-801, Portugal; cE3c - Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, Azorean Biodiversity Group, University of the Azores, Ponta Delgada 9501-801, Portugal.
| | - Armindo S Rodrigues
- FCT, Faculty of Sciences and Technology, University of the Azores, Ponta Delgada 9501-801, Portugal; IVAR, Institute of Volcanology and Risks Assessment, University of the Azores, Ponta Delgada 9501-801, Portugal.
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Sturla Lompré J, Malanga G, Gil MN, Giarratano E. Biochemical response and tissue-specific accumulation of scallop Aequipecten tehuelchus from Patagonia, Argentina after exposure to inorganic arsenic. Chemosphere 2024; 349:140946. [PMID: 38103654 DOI: 10.1016/j.chemosphere.2023.140946] [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: 06/26/2023] [Revised: 11/14/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
This study investigates the effects of different inorganic arsenic (As III) concentrations (0, 125, 500 and 1000 μg As/L) following two exposure times (7 and 14 days) on gills, digestive gland and muscle of scallop Aequipecten tehuelchus from Patagonia, Argentina. A biochemical approach was used to investigate oxidative stress-related parameters after different As concentrations and exposure times. Although the accumulation of As was of the same order of magnitude in all tissues, the results showed distinct tissue-specific oxidative responses to this metalloid. Furthermore, the variation in exposure time had no significant effect on As accumulation in any of the three tissues. In gills, despite no reactive oxygen and nitrogen species (RONS) were detected, there was an increase in catalase (CAT) activity and metallothionein (MT) levels. Conversely, digestive gland showed RONS production without a rise in CAT and glutathione S-transferases (GST) activities, but with an increase in MT levels. In muscle, RONS production and CAT activity kept constant or decreased, while MT levels remained unchanged. In addition, exposure time demonstrated its critical role in gills by influencing the response of CAT, GST and MT, particularly at high As concentrations, while exposure time did not affect the biochemical stress parameters in the digestive gland and muscle. Interestingly, neither concentration of As produced lipid damage, showing the effectiveness of the antioxidant mechanisms to avoid it. These results emphasize that A. tehuelchus exhibited no time-dependent effects in response to As exposure, while showing tissue-specific responses characterized by significant concentration-dependent effects of As. This study provides a comprehensive insight by considering the combined effects of time and concentration of a contaminant and distinguishing its effects on specific tissues, a dimension often overlooked in the existing literature. Subsequent studies should prioritize the analysis of additional contaminants in species with increased sensitivity.
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Affiliation(s)
- Julieta Sturla Lompré
- Laboratorio de Química Ambiental y Ecotoxicología, Centro para el Estudio de Sistemas Marinos (CESIMAR-CONICET), Bv. Almte Brown 2915, Puerto Madryn, U9120, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), Bv. Almte Brown 3051, Puerto Madryn, U9120, Chubut, Argentina.
| | - Gabriela Malanga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Fisicoquímica. Junín 954, Ciudad Autónoma de Buenos Aires C1113 AAD, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular Dr. A. Boveris (IBIMOL), CONICET-Universidad de Buenos Aires, Junín 954, Ciudad Autónoma de Buenos Aires C1113 AAD, Buenos Aires, Argentina.
| | - Mónica Noemí Gil
- Laboratorio de Química Ambiental y Ecotoxicología, Centro para el Estudio de Sistemas Marinos (CESIMAR-CONICET), Bv. Almte Brown 2915, Puerto Madryn, U9120, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), Bv. Almte Brown 3051, Puerto Madryn, U9120, Chubut, Argentina.
| | - Erica Giarratano
- Laboratorio de Química Ambiental y Ecotoxicología, Centro para el Estudio de Sistemas Marinos (CESIMAR-CONICET), Bv. Almte Brown 2915, Puerto Madryn, U9120, Chubut, Argentina.
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11
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Yu Z, Han J, Li L, Zhang Q, Chen A, Chen J, Wang K, Jin J, Li H, Chen G. Chronic triclosan exposure induce impaired glucose tolerance by altering the gut microbiota. Food Chem Toxicol 2024; 183:114305. [PMID: 38052405 DOI: 10.1016/j.fct.2023.114305] [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: 09/20/2023] [Revised: 11/10/2023] [Accepted: 11/27/2023] [Indexed: 12/07/2023]
Abstract
Triclosan (TCS) is an antimicrobial compound incorporated into more than 2000 consumer products. This compound is frequently detected in the human body and causes ubiquitous contamination in the environment, thereby raising concerns about its impact on human health and environmental pollution. Here, we demonstrated that 20 weeks' exposure of TCS drove the development of glucose intolerance by inducing compositional and functional alterations in intestinal microbiota in rats. Fecal-transplantation experiments corroborated the involvement of gut microbiota in TCS-induced glucose-tolerance impairment. 16S rRNA gene-sequencing analysis of cecal contents showed that TCS disrupted the gut microbiota composition in rats and increased the ratio of Firmicutes to Bacteroidetes. Cecal metabolomic analyses detected that TCS altered host metabolic pathways that are linked to host glucose and amino acid metabolism, particularly branched-chain amino acid (BCAA) biosynthesis. BCAA measurement confirmed the increase in serum BCAAs in rats exposed to TCS. Western blot and immunostaining results further confirmed that elevated BCAAs stimulated mTOR, a nutrient-sensing complex, and following IRS-1 serine phosphorylation, resulted in insulin resistance and glucose intolerance. These results suggested that TCS may induce glucose metabolism imbalance by regulating BCAA concentration by remodeling the gut microbiota.
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Affiliation(s)
- Zhen Yu
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China
| | - Junyong Han
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China
| | - Lisha Li
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China
| | - Qiufeng Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Ayun Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Jinyan Chen
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China
| | - Kun Wang
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China
| | - Jingjun Jin
- Fujian Provincial Key Laboratory of Medical Analysis, Fujian Academy of Medical Sciences, Fuzhou, 350001, China
| | - Huangyuan Li
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, 350122, China.
| | - Gang Chen
- Department of Endocrinology, Fujian Provincial Hospital, Fuzhou, 350001, China.
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12
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Li L, Lv X, He J, Zhang L, Li B, Zhang X, Liu S, Zhang Y. Chronic exposure to polystyrene nanoplastics induces intestinal mechanical and immune barrier dysfunction in mice. Ecotoxicol Environ Saf 2024; 269:115749. [PMID: 38039854 DOI: 10.1016/j.ecoenv.2023.115749] [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: 05/24/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
Micro(nano)plastics are prevalent in the environment, and prolonged exposure to them represents a threat to human health. The goal of this study is to assess the health risk of long-term exposure to nanoplastics (NPs) at environmental concentrations on the intestinal mechanical and immune barrier in mice. In this study, mice were provided drinking water containing polystyrene NPs (PS-NPs; 0.1, 1, and 10 mg·L-1) for 32 consecutive weeks. The levels of endocytosis proteins caveolin and clathrin and of tight junctional proteins claudin-1, occludin, and ZO-1, and morphological changes, proportion of lymphocytes B in MLNs and lymphocytes T in IELs and LPLs were determined by immunohistochemistry, hematoxylin-eosin, and flow cytometry assays in the intestinal tissues of mice at 28 weeks. The activities or concentrations of ROS, SOD, MDA, and GSH-Px and inflammatory factors (IL-1β, IL-6, and TNF-α) in the intestinal tissues of mice were measured by ELISA at 12, 16, 20, 24, and 32 weeks. Compared with the control group, oral ingested PS-NPs entered the intestinal tissues of mice and upregulated expression levels of the clathrin and caveolin. The intestinal tissue structure of mice in the PS-NPs (1 and 10 mg·L-1) exposure groups showed significant abnormalities, such as villus erosion, decreased of crypts numbers and large infiltration of inflammatory cells. Exposure to 0.1 mg·L-1 PS-NPs decreased occludin protein levels, but not claudin-1 and ZO-1 levels. The levels of these three tight junction proteins decreased significantly in the 1 and 10 mg·L-1 PS-NPs exposed groups. Exposure to PS-NPs led to a significant time- and dose-dependent increase in ROS and MDA levels, and concurrently decreased GSH-Px and SOD contents. Exposure to PS-NPs increased the proportion of B cells in MLNs, and decreased the proportion of CD8+ T cells in IELs and LPLs. The levels of pro-inflammatory cytokines IL-6, TNF-α and IL-1β were markedly elevated after PS-NPs exposure. Long-term PS-NPs exposure impaired intestinal mechanical and immune barrier, and indicate a potentially significant threat to human health.
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Affiliation(s)
- Lan Li
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Xin Lv
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Jing He
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Lianshuang Zhang
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Boqing Li
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China.
| | - Xiaolin Zhang
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Sisi Liu
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Ying Zhang
- School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China.
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13
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Zhu W, Kunz J, Brunson E, Barnhart C, Brown H, McMurray S, Roberts AD, Shulse C, Trauth K, Wang B, Steevens JA, Deng B. Impacts of acute and chronic suspended solids exposure on juvenile freshwater mussels. Sci Total Environ 2023; 905:167606. [PMID: 37802351 DOI: 10.1016/j.scitotenv.2023.167606] [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: 07/22/2023] [Revised: 09/11/2023] [Accepted: 10/03/2023] [Indexed: 10/08/2023]
Abstract
Construction activities may affect adjacent water systems by introducing increased levels of suspended solids into the water body and may subsequently affect the survival and growth of freshwater mussels. We tested three sediment types from sites in Missouri, including Spring River sediment (SRS), Osage River bank clay soil (ORC), and quarried limestone from Columbia (LMT). We prepared series of suspensions of each sediment with total suspended solids concentrations ranging from 0 to 5000 mg/L. Juveniles from three mussel species, Fatmucket (Lampsilis siliquoidea), Arkansas Brokenray (Lampsilis reeveiana), and Washboard (Megalonaias nervosa) were exposed to these suspensions in both acute (96-h) and chronic (28-d) tests. No clear impact on survival was observed from the acute or chronic exposures, but chronic test showed that juvenile mussels' growth was strongly affected. Interestingly, growth was enhanced at lower levels of SRS and ORC (≤500 mg/L, p < 0.05), and the juvenile mussels exposed to 500 mg/L SRS exhibited approximately 60 % more dry weight than those reared in the control. LMT did not enhance growth. Growth was slowed by high concentrations (>1000 mg/L) of all three sediments, implying that high suspended solids levels could reduce survival in the long term. Our findings may help to inform regulations and guidelines for construction activities to minimize adverse effects on juvenile mussels.
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Affiliation(s)
- Wenyu Zhu
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO, United States of America.
| | - James Kunz
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, United States of America
| | - Eric Brunson
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, United States of America
| | - Chris Barnhart
- Missouri State University, Springfield, MO, United States of America
| | - Henry Brown
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO, United States of America
| | - Stephen McMurray
- Missouri Department of Conservation, Columbia, MO, United States of America
| | - Andrew D Roberts
- U.S. Fish and Wildlife Service, Missouri Ecological Services Field Office, Columbia, MO, United States of America
| | - Christopher Shulse
- Missouri Department of Transportation, Jefferson City, MO, United States of America
| | - Kathleen Trauth
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO, United States of America
| | - Binbin Wang
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO, United States of America
| | - Jeffery A Steevens
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, United States of America
| | - Baolin Deng
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO, United States of America
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14
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Ma J, Zhu P, Wang W, Zhang X, Wang P, Sultan Y, Li Y, Ding W, Li X. Environmental impacts of chlorpyrifos: Transgenerational toxic effects on aquatic organisms cannot be ignored. Sci Total Environ 2023; 905:167311. [PMID: 37742960 DOI: 10.1016/j.scitotenv.2023.167311] [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: 06/24/2023] [Revised: 08/17/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Chlorpyrifos (CPF) has been extensively used in the world and frequently found in natural environments, might cause a range of environmental issues and pose a health risk to aquatic species. However, investigation of its toxic effects on offspring after parental exposure has been neglected, especially for aquatic organisms such as fish. In the current study, the effects of chronic CPF exposure (3 and 60 μg/L) on adult zebrafish (F0) was investigated to determine its influence on adult reproductive capacity and offspring (F1 and F2). The results showed the existence of CPF both in F0 ovaries and F1 embryos and larvae, indicating that CPF could be transferred directly from the F0 adult fish to F1 offspring. After 90 d exposure, we observed that F0 female fish showed increased proportion of perinucleolar oocyte in the ovaries, decreased proportion of mature oocyte, and decreased egg production, but not in F1 adult. The transcriptomic analysis revealed that the disruption of metabolism during oocyte maturation in the CPF treatment zebrafish might interfere with F0 oocytes development and quality and ultimately influence offspring survival. For the larvae, the parental CPF exposure distinctly inhibited heart rate at 72 and 120 hpf and increased the mortality of F1 but not F2 larvae. The changes of biochemical indicators confirmed a disturbance in the oxidative balance, induced inflammatory reaction and apoptosis in F1 larvae. Furthermore, the changing profiles of mRNA revealed by RNA-seq confirmed an increased susceptibility in F1 larvae and figured out potential disruptions of ROS metabolism, immune system, apoptosis, and metabolism pathways. Taken together, these results show that chronic CPF treatment can induce reproductive toxicity, and parental transfer of CPF occurs in fish, resulting in transgenerational alters in F1 generation survival and transcription that raising concerns on the ecological risk of CPF in the natural environment.
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Affiliation(s)
- Junguo Ma
- College of Life Science, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Penglin Zhu
- College of Life Science, Henan Normal University, Xinxiang, Henan 453007, China
| | - Wenhua Wang
- College of Life Science, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xiaodan Zhang
- College of Life Science, Henan Normal University, Xinxiang, Henan 453007, China
| | - Panliang Wang
- Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yousef Sultan
- Department of Food Toxicology and Contaminants, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Yuanyuan Li
- Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, Henan Normal University, Xinxiang, Henan 453007, China
| | - Weikai Ding
- Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xiaoyu Li
- Henan International Joint Laboratory of Aquatic Toxicology and Health Protection, Henan Normal University, Xinxiang, Henan 453007, China
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15
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Tomé HVV, Clark SL, Jorgenson BC, Kimmel S, Wenzel B, Gimeno C, Porch J, Patnaude MR, Schmidt K, Deslandes L, Schmehl DR. Chronic larval and adult honey bee laboratory testing: Which dietary additive should be considered when a test substance is not solubilized in acetone? Ecotoxicol Environ Saf 2023; 268:115718. [PMID: 38000305 DOI: 10.1016/j.ecoenv.2023.115718] [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: 09/01/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023]
Abstract
Chronic toxicity tests on adult and larval honey bees (Apis mellifera) can require the use of dietary additives (solvents, emulsifiers, adjuvants and viscosifier agents) when the active ingredient of plant protection products cannot be dissolved or does not remain stable and homogeneous within the test diets. Acetone is the widely used and accepted solvent allowed within the international regulatory guidelines, but it can be ineffective in keeping certain compounds in solution and can cause toxicity to adults and larvae. In this publication, we present an evaluation of alternative additives in adult and larval diets. Six dietary additives including five solvents (ethanol, isopropanol, n-propanol, propylene glycol and triethylene glycol) and a viscosifier agent (xanthan gum) at five concentrations along with a negative control and a solvent control (acetone) were investigated at seven laboratories. The safe levels for bees were determined for each of the additives used in the 10-day chronic adult and 22-day chronic larval tests. In the 10-day chronic adult study, ethanol and isopropanol were found to be safe at concentrations ≤ 5.0 %, while xanthan gum can be reliably used at concentrations ≤ 0.1 %. Greater variability across laboratories was observed for N-propanol, propylene glycol, and triethylene glycol and these agents may cause mortality when added to diets at concentrations above 0.25-0.5 %. The safe levels of additives to larval diet in the 22-day chronic larval test had a greater variability and were generally lower than what were observed for adult diet. Our results do not recommend the inclusion of ethanol or n-propanol into the larval diet, and isopropanol, propylene glycol, and triethylene glycol may cause mortality at concentrations above 0.25-0.5 %. Safe levels for xanthan gum were more variable than what was observed for adults, but it can be used reliably at concentrations ≤ 0.05 %. Our analyses conclude that several additives can be integrated successfully in honey bee laboratory bioassays at levels that cause low mortality to adults and larvae.
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Affiliation(s)
- Hudson V V Tomé
- FMC Corporation, Newark, DE, USA; Pollinator Research Task Force (PRTF), USA
| | | | | | - Stefan Kimmel
- Corteva Agriscience, Indianapolis, IN, USA; Innovative Environmental Services IES, Witterswil, Switzerland
| | - Bettina Wenzel
- Innovative Environmental Services IES, Witterswil, Switzerland
| | | | | | | | | | - Line Deslandes
- Syntech Research Group, La Chapelle de Guinchay, France; knoell France SAS, Lyon, France
| | - Daniel R Schmehl
- Pollinator Research Task Force (PRTF), USA; Bayer CropScience LP., Chesterfield, MO, USA.
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16
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Ehrhart AL, Granek EF. PPCPs in coastal wastewater treatment plant effluent and uptake by Pacific oysters (Crassostrea gigas): Findings from a laboratory experiment. Sci Total Environ 2023; 900:165728. [PMID: 37495135 DOI: 10.1016/j.scitotenv.2023.165728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/12/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 07/28/2023]
Abstract
Municipal wastewater treatment plant (WWTP) effluent is a primary source of pharmaceuticals and personal care products (PPCPs) to the marine environment, as most of these compounds are not fully removed during the treatment process. Continual discharge from WWTPs into coastal areas may act as a stressor by continually exposing organisms to a suite of PPCPs. To quantify organismal exposure to PPCP mixtures, we conducted a 12-week lab experiment that exposed Pacific oysters to effluent from two Oregon coastal WWTPs of different discharge capacities (permitted as <1 million gallons/day and >1 million gallons/day; or < or >3.785 million liters/day) at a dilution of 25 %. Composite samples of weekly collected effluent and a subset of freeze-dried oysters from experiment week 12 were analyzed for PPCPs. Though challenges with food availability inhibited our ability to confidently identify effects of the contaminants on growth and fitness, the experiment allowed us to examine uptake of contaminants from effluent into an estuarine bivalve of commercial importance. We detected 30 PPCPs and three alkylphenols in effluent and 13 PPCPs and four alkylphenols in oyster tissue, indicating high rates of release from secondary treatment and significant potential for marine organism exposure to and uptake of PPCPs in rural coastal areas.
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Affiliation(s)
- Amy L Ehrhart
- Portland State University, Department of Environmental Science and Management, Science Research and Teaching Center, Rm. 218, 1719 SW 10th Ave, Portland, OR 97201, USA.
| | - Elise F Granek
- Portland State University, Department of Environmental Science and Management, Science Research and Teaching Center, Rm. 218, 1719 SW 10th Ave, Portland, OR 97201, USA.
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17
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Liu S, Zhang J, Li R, Zhang C, Wang L, Liang H, Feng G, Xiong D. Triazophos exposure on maternal Daphnia magna at environmental-related concentrations revealed toxic effects to its offspring. Pestic Biochem Physiol 2023; 196:105607. [PMID: 37945248 DOI: 10.1016/j.pestbp.2023.105607] [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: 04/23/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 11/12/2023]
Abstract
Due to chemical and photochemical stability, triazophos has been frequently detected in rivers and oceans over the years with extensive use for pest control in agriculture, and it has become a worldwide ecological concern to the aquatic environment. Until now, fewer data are available regarding the potential long-term adverse effects of triazophos on aquatic invertebrates, which plays an essential role in aquatic food webs, as a key group for water ecosystems. In this experiment, the F1- and F2 progenies of Daphnia magna were recovered when daphnias (F0) exposure to triazophos at environmental-related concentrations (0.1 and 1.0 μg/L) for 21 d; and the indexes related to phenotypic traits, reproduction and gene expression were measured in tested animals. The results showed that heart rate and total number of neonates in exposed F0-daphnias were significantly lower than those of control group, and the detoxification genes (HR96 and P-gp) were up-regulated while genes related reproduction (Vtg) and molting (Nvd and Shd) were significantly down-regulated. The heart rate and individual size of F1-daphnias (<24 h) were significantly reduced in the treatment group. After 21-d recovery, the heart rate and expression of HR96, P-gp, Vtg, Nvd and Shd were declined in F1-daphnias. There was no obvious difference of morphological traits and heart rate between treatment and control in F2-daphnias (<24 h). In summary, daphnias (F0) exposure to triazophos with environmental dose could raise toxic effects on its offspring (F1), which is mainly manifested by reduced heart rate, the accumulated number and individual size of offspring and decreased expression of genes related to molting and reproduction.
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Affiliation(s)
- Shaoquan Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jianlu Zhang
- Shaanxi Key Laboratory of Qinling Ecological Security, Shaanxi Institute of Zoology, Xi'an 710032, China
| | - Ruijiao Li
- Fisheries Research & Technology Extension Center of Shaanxi, Yellow River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Xi'an 710086, China
| | - Chunyun Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lixin Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hao Liang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Guangpeng Feng
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China.
| | - Dongmei Xiong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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18
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Strippoli E, Nobile F, Caranci N, Adorno V, Galise I, Serinelli M, Bisceglia L, Allotta A, Rubino C, Pollina Addario W, Gariazzo C, Maio S, Viegi G, Ranzi A, Michelozzi P, Stafoggia M, Zengarini N. [Long-term exposure to air pollution and incidence of coronary heart diseases and stroke in the longitudinal metropolitan studies (LMS) network: the BIGEPI project]. Epidemiol Prev 2023; 47:35-45. [PMID: 38639299 DOI: 10.19191/ep23.6.s3.006] [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] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
OBJECTIVES to assess the potential of using longitudinal metropolitan studies (LMS) to study the association between long-term exposure to air pollution and the incidence of acute coronary events and stroke. DESIGN closed cohort. SETTING AND PARTICIPANTS subjects aged >=30 years, who took part in the 2011 census, residents in 5 cities (Turin, Bologna, Rome, Brindisi and Taranto). Annual concentrations of particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2) and warm-season ozone (O3) (annual O3 in Taranto and Brindisi), estimated through satellite (Turin, Bologna, Rome) or photochemical models (Taranto and Brindisi) with a spatial resolution of 1 km2, were assigned to the census address. MAIN OUTCOME MEASURES incidence of coronary heart disease (CHD) and stroke until 31.12.2018 (2019 in Bologna). Cohort-specific Hazard Ratios (HRs), estimated using Cox regression models progressively adjusting for individual and contextual covariates, were pooled with random-effect meta-analysis. RESULTS there were 71,872 incident CHD cases and 43,884 incident cases of stroke in almost 18 million person-years. No association was observed between the exposures studied and incidence of CHD and stroke, except for an increase in the incidence of CHD associated with warm-season O3 exposure (HR 1.034 per 5 μg/m3 increase). Some positive associations were found in specific cities (both outcomes in Brindisi with PM10 exposure and in Taranto with NO2 exposure, stroke in Rome with both PM10 and PM2.5), although estimates were not significant in some instances. CONCLUSIONS LMS are a high potential tool for the study of comparative medium- and long-term effects of air pollution. Their further development (different definitions of exposure, outcomes, characteristics of the urban areas and extension to other LMS) may make them even more valuable tools for monitoring and planning public health interventions.
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Affiliation(s)
- Elena Strippoli
- Servizio sovrazonale di epidemiologia ASL TO3, Grugliasco, Torino;
| | | | - Nicola Caranci
- Settore innovazione nei Servizi sanitari e sociali, Direzione generale cura della persona, salute e welfare, Regione Emilia-Romagna, Bologna
| | - Valentina Adorno
- Settore innovazione nei servizi sanitari e sociali, Direzione generale cura della persona, salute e welfare, Regione Emilia-Romagna, Bologna
| | - Ida Galise
- UOS Ambiente e salute direzione scientifica - ARPA Puglia, Bari
| | - Maria Serinelli
- UOS Ambiente e salute direzione scientifica - ARPA Puglia, Bari
| | - Lucia Bisceglia
- Agenzia regionale per la salute e il sociale della Puglia, AReSS, Bari
| | - Alessandra Allotta
- Dipartimento per le attività sanitarie e Osservatorio epidemiologico, Assessorato della salute - Regione Sicilia, Palermo
| | - Claudio Rubino
- Dipartimento per le attività sanitarie e Osservatorio epidemiologico, Assessorato della salute - Regione Sicilia, Palermo
| | - Walter Pollina Addario
- Dipartimento per le attività sanitarie e Osservatorio epidemiologico, Assessorato della salute - Regione Sicilia, Palermo
| | - Claudio Gariazzo
- Dipartimento di medicina, epidemiologia, igiene del lavoro e ambientale di INAIL (INAIL-DIMEILA), Roma
| | - Sara Maio
- Istituto di fisiologia clinica (IFC-CNR), Pisa
| | | | - Andrea Ranzi
- Agenzia regionale per la Prevenzione, l'ambiente e l'energia dell'Emilia-Romagna, Bologna
| | | | - Massimo Stafoggia
- Dipartimento di epidemiologia SSR Lazio/ASL Roma 1, Roma
- Da considerare entrambi come ultimo autore
| | - Nicolás Zengarini
- Servizio sovrazonale di epidemiologia ASL TO3, Grugliasco, Torino
- Da considerare entrambi come ultimo autore
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Abdollahi-Karizno M, Chahkandi M, Rajabi S, Roshanravan B, Jafari-Nozad AM, Aschner M, Samarghandian S, Farkhondeh T. The Protective Effect of Curcumin Against Cardiotoxic Effects Induced by Chronic Exposure to Chlorpyrifos. Curr Mol Med 2023; 23:CMM-EPUB-134733. [PMID: 37877145 DOI: 10.2174/0115665240251646230919100920] [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: 03/06/2023] [Revised: 07/28/2023] [Accepted: 08/29/2023] [Indexed: 10/26/2023]
Abstract
AIMS This study aimed to evaluate the effect of Chlorpyrifos (CPF) in rat heart tissue and the effect of Curcumin (Cur) on cardiac enzymes, oxidative indices, and histopathological changes in the cardiac tissue. BACKGROUND CPF, the most used organophosphorus pesticide (OP), has been reported to induce cardiotoxic effects. OBJECTIVE The cardioprotective effects of Cur against CPF-induced toxicity have not been entirely investigated till now. METHOD Forty male Wistar rats were randomized into five groups (n=8). C group (Control animals that received olive oil), CPF group (10 mg/kg/day), CPF + Cur 25, CPF + Cur 50, and CPF + Cur 100 groups (animals received 10 mg/kg/day CPF and 25, 50, and 100 mg/kg Cur, respectively). All treatments were administered via oral gavage for 90 days. Cardiac enzymes (LDH & CPK) and oxidative stress (OS) biomarkers in heart tissue (malondialdehyde, Superoxide Dismutase) were measured. Histopathological changes in the heart tissue were also evaluated. RESULT Chronic exposure to CPF significantly increased cardiac enzyme levels and OS biomarkers. Histological changes were found, including disorganization of the cardiac muscle fibers with disorganization and degeneration in myocardial fibers with separation of myofibrils and cytoplasmic vacuolization of cardiac muscle fibers. Administration of Cur (100 mg/kg) reversed serum LDH concentration and OS biomarkers to normal levels in CPF-exposed animals (p < 0.05) and significantly improved cardiac damage. CONCLUSION According to the results of this study, Cur can reduce the adverse effects of long-term exposure to CPF in rat heart tissue by modulating OS.
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Affiliation(s)
| | - Mahbobeh Chahkandi
- Department of Pathology, School of Medicine Birjand University of Medical Sciences, Birjand, Iran
| | - Shahnaz Rajabi
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Babak Roshanravan
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Saeed Samarghandian
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Tahereh Farkhondeh
- Department of Toxicology and Pharmacology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
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20
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Glendinning JI, Williams N. Chronic sugar exposure increases daily intake of sugars but decreases avidity for sweeteners in mice. Appetite 2023; 191:107077. [PMID: 37813162 DOI: 10.1016/j.appet.2023.107077] [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: 07/20/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/11/2023]
Abstract
Little is known about how chronic sugar consumption impacts avidity for and daily intake of sugars. This issue is topical because modern humans exhibit high daily intakes of sugar. Here, we exposed sugar-naïve C57BL/6 mice (across two 28-day exposure periods, EP1 and EP2) to a control (chow and water) or experimental (chow, water and a 11 or 34% sugar solution) diet. The sugar solutions contained sucrose, glucose syrups, or high-fructose syrups. We used brief-access tests to measure appetitive responses to sucralose and sucrose solutions at three time points: baseline (before EP1), after EP1, and after EP2. We used lick rates to infer palatability, and number of trials initiated/test to infer motivation. Exposure to the control diet had no impact on lick rates or number of trials initiated for sucralose and sucrose. In contrast, exposure to the experimental diets reduced licking for the sweeteners to varying degrees. Lick rates were reduced by exposure to sugar solutions containing the 11% glucose syrups, 34% sucrose, 34% glucose syrups and 34% high-fructose syrups. The number of trials initiated was reduced by exposure to all of the sugar solutions. Despite the exposure-induced reductions in avidity for the sweetener solutions, daily intakes of virtually all of the sugar solutions increased across the exposure periods. We conclude that (i) chronic consumption of sugar solutions reduced avidity for the sweetened solutions, (ii) the extent of this effect depended on the concentration and type of sugar, and (iii) avidity for sweet-tasting solutions could not explain the persistently high daily intake of sugar solutions in mice.
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Affiliation(s)
- John I Glendinning
- Departments of Biology and Neuroscience & Behavior, Barnard College, Columbia University, 3009 Broadway, New York, NY, 10027, USA.
| | - Niki Williams
- Departments of Biology and Neuroscience & Behavior, Barnard College, Columbia University, 3009 Broadway, New York, NY, 10027, USA
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21
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Diogo BS, Antunes SC, Pinto I, Amorim J, Teixeira C, Teles LO, Golovko O, Žlábek V, Carvalho AP, Rodrigues S. Insights into environmental caffeine contamination in ecotoxicological biomarkers and potential health effects of Danio rerio. Heliyon 2023; 9:e19875. [PMID: 37809478 PMCID: PMC10559286 DOI: 10.1016/j.heliyon.2023.e19875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 10/10/2023] Open
Abstract
Caffeine (CAF) exposures have been shown to cause several pharmacological and biological effects in target and non-target organisms. Although there are already several ecotoxicological studies with CAF in non-target organisms, they are focused on marine organisms, with relevant concentrations in these ecosystems, therefore, less ecologically relevant to freshwater ecosystems (the main ecoreceptor of this type of anthropogenic contaminant). The present study aimed to assess the chronic effects (28 days) of sub-lethal and environmentally relevant concentrations of CAF (0.16, 0.42, 1.09, 2.84, 7.40, 19.23, and 50 μg/L) in Danio rerio. Biochemical endpoints as biomarkers of antioxidant defense, biotransformation, lipid peroxidation, energy sources, and neurotransmission were assessed. CAF exposure induced alterations in antioxidant defenses (superoxide dismutase and glutathione reductase activities, and glutathione content) preventing lipid peroxidation. Lactate dehydrogenase activity decreased in all the concentrations tested, while acetylcholinesterase activity was only affected by the highest concentrations tested (19.23 and 50 μg/L). We also utilized a multi-biomarker approach (Integrated Biomarker Response version 2, IBRv2) to investigate the effects of CAF in the dispersion scope of individual biochemical responses of D. rerio. IBRv2 showed that the concentration of 50 μg/L promotes the highest stress. However, the results showed that CAF induced disturbances in the metabolic pathways studied in D. rerio. These results demonstrated the toxic effects of CAF on freshwater fish, compromising their physiological functions and evidencing the need for monitoring the residues of CAF released into the inland aquatic environments. Furthermore, this research evidence that phylogenetically and physiologically different species may present different biological responses with concern for ecologically relevant environmental conditions. In this sense, the present study generated ecotoxicologically relevant data, that can be considered by environment regulators, since the here-endpoints evaluated showed sensitivity and consistency in the evaluation of caffeine risks in freshwater environments.
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Affiliation(s)
- Bárbara S. Diogo
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Sara C. Antunes
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Ivo Pinto
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
- UMIB-ICBAS, Unidade Multidisciplinar de Investigação Biomédica, Instituto Ciências Abel Salazar da Universidade do Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
| | - João Amorim
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Cláudia Teixeira
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Luís Oliva Teles
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Oksana Golovko
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), SE-75007, Uppsala, Sweden
| | - Vladimír Žlábek
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-389 25, Vodňany, Czech Republic
| | - António Paulo Carvalho
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Sara Rodrigues
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
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22
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Car C, Gilles A, Goujon E, Muller MLD, Camoin L, Frelon S, Burraco P, Granjeaud S, Baudelet E, Audebert S, Orizaola G, Armengaud J, Tenenhaus A, Garali I, Bonzom JM, Armant O. Population transcriptogenomics highlights impaired metabolism and small population sizes in tree frogs living in the Chernobyl Exclusion Zone. BMC Biol 2023; 21:164. [PMID: 37525144 PMCID: PMC10391870 DOI: 10.1186/s12915-023-01659-2] [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] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 07/03/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Individual functional modifications shape the ability of wildlife populations to cope with anthropogenic environmental changes. But instead of adaptive response, human-altered environments can generate a succession of deleterious functional changes leading to the extinction of the population. To study how persistent anthropogenic changes impacted local species' population status, we characterised population structure, genetic diversity and individual response of gene expression in the tree frog Hyla orientalis along a gradient of radioactive contamination around the Chernobyl nuclear power plant. RESULTS We detected lower effective population size in populations most exposed to ionizing radiation in the Chernobyl Exclusion Zone that is not compensated by migrations from surrounding areas. We also highlighted a decreased body condition of frogs living in the most contaminated area, a distinctive transcriptomics signature and stop-gained mutations in genes involved in energy metabolism. While the association with dose will remain correlational until further experiments, a body of evidence suggests the direct or indirect involvement of radiation exposure in these changes. CONCLUSIONS Despite ongoing migration and lower total dose rates absorbed than at the time of the accident, our results demonstrate that Hyla orientalis specimens living in the Chernobyl Exclusion Zone are still undergoing deleterious changes, emphasizing the long-term impacts of the nuclear disaster.
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Affiliation(s)
- Clément Car
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France
| | - André Gilles
- UMR 1467 RECOVER, Aix-Marseille Université, INRAE, Centre Saint-Charles, Marseille, France.
| | - Elen Goujon
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France
- Laboratoire Des Signaux Et Systèmes, Université Paris-Saclay, CNRS, CentraleSupélec, 91190, Gif-Sur-Yvette, France
| | - Marie-Laure Delignette Muller
- Laboratoire de Biométrie Et Biologie Evolutive, UMR 5558, Université de Lyon, Université Lyon 1, CNRS, VetAgro Sup, Villeurbanne, France
| | - Luc Camoin
- Aix-Marseille University, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Marseille Proteomics, Marseille, France
| | - Sandrine Frelon
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France
| | - Pablo Burraco
- Animal Ecology, Department of Ecology and Genetics, Evolutionary Centre, Uppsala University, 75236, Uppsala, Sweden
- Doñana Biological Station (CSIC), Seville, Spain
| | - Samuel Granjeaud
- Aix-Marseille University, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Marseille Proteomics, Marseille, France
| | - Emilie Baudelet
- Aix-Marseille University, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Marseille Proteomics, Marseille, France
| | - Stéphane Audebert
- Aix-Marseille University, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Marseille Proteomics, Marseille, France
| | - Germán Orizaola
- Animal Ecology, Department of Ecology and Genetics, Evolutionary Centre, Uppsala University, 75236, Uppsala, Sweden
- IMIB-Biodiversity Research Institute, University of Oviedo, 33600, Mieres-Asturias, Spain
- Zoology Unit, Department of Biology of Organisms and Systems, University of Oviedo, 33071, Oviedo-Asturias, Spain
| | - Jean Armengaud
- Département Médicaments Et Technologies Pour La Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SPI, Bagnols-Sur-Cèze, France
| | - Arthur Tenenhaus
- Laboratoire Des Signaux Et Systèmes, Université Paris-Saclay, CNRS, CentraleSupélec, 91190, Gif-Sur-Yvette, France
| | - Imène Garali
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France
| | - Jean-Marc Bonzom
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France
| | - Olivier Armant
- Institut de Radioprotection Et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, France.
- PSE-SANTE/SESANE/LRTox, Fontenay Aux Roses, France.
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König Kardgar A, Ghosh D, Sturve J, Agarwal S, Carney Almroth B. Chronic poly(l-lactide) (PLA)- microplastic ingestion affects social behavior of juvenile European perch (Perca fluviatilis). Sci Total Environ 2023; 881:163425. [PMID: 37059150 DOI: 10.1016/j.scitotenv.2023.163425] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/17/2023] [Accepted: 04/06/2023] [Indexed: 06/01/2023]
Abstract
Juvenile perch were exposed to 2 % (w/w) poly(l-lactide) (PLA) microplastic particles (90-150 μm) in food pellets, or 2 % (w/w) kaolin particles, and a non-particle control food over 6 months. Chronic ingestion of PLA microplastics significantly affected the social behavior of juvenile perch, evident as a significantly increased reaction to the vision of conspecifics. PLA ingestion did not alter life cycle parameters, or gene expression levels. In addition to reactions to conspecifics, fish that ingested microplastic particles showed tendencies to decrease locomotion, internal schooling distance, and active predator responses. The ingestion of natural particles (kaolin) significantly downregulated the expression of genes related to oxidative stress and androgenesis in the liver of juvenile perch, and we found tendencies to downregulated expression of genes related to xenobiotic response, inflammatory response, and thyroid disruption. The present study demonstrated the importance of natural particle inclusion and the potential behavioral toxicity of one of the commercially available biobased and biodegradable polymers.
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Affiliation(s)
- Azora König Kardgar
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
| | - Dipannita Ghosh
- Macromolecular Chemistry II, University of Bayreuth, Bayreuth, Germany.
| | - Joachim Sturve
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
| | - Seema Agarwal
- Macromolecular Chemistry II, University of Bayreuth, Bayreuth, Germany.
| | - Bethanie Carney Almroth
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden.
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24
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He J, Chen Y, Dai S, Chen F, Wang Y, Shi T, Chen L, Liu Y, Chen J, Xie P. First insights into region-specific lipidome alterations of prefrontal cortex and hippocampus of mice exposed chronically to microcystins. Environ Int 2023; 177:108018. [PMID: 37329758 DOI: 10.1016/j.envint.2023.108018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/19/2023]
Abstract
Microcystins (MCs), a group of most widespread freshwater cyanotoxins that possess strong neurotoxicity, can adversely affect brain structures and functions and are linked to neurodegenerative diseases. Despite the essential role of lipids in brain structures and functions, the brain lipidome profile of mammals exposed to MCs remains unexplored, hindering a clear understanding of the neurotoxic effects of MCs and underlying mechanisms. In this study, we performed untargeted lipidomic profiling using ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) on the prefrontal cortex and hippocampus of mice orally exposed to 30 and 300 μg/kg body mass/day of microcystin-leucine arginine (MC-LR) for 180 days to evaluate the impacts of MC-LR on the brain lipidome profile and functions. Our results show that MC-LR resulted in a decline in cognitive parameters, as assessed by the Morris water maze test. Interestingly, apparent neurodegenerative changes were observed in the prefrontal cortex, but not in the hippocampus. Comprehensive lipidomic analyses uncovered profound, region-specific changes in the phospholipid and sphingolipid profile at the levels of lipid subclasses, lipid species, and fatty acyl composition. These changes showed overall decrease trends of lipid content in the prefrontal cortex yet increasing trends in the hippocampus. We identified distinct transcriptional regulations of lipid metabolism and apoptosis by MC-LR in the two regions, which appeared to underlie the neurodegenerative changes. Collectively, this study uncovers region-specific changes in the brain lipidome profile and functions induced by MCs, shedding light on the role of lipid dysfunction in neurotoxicity mechanism of MCs.
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Affiliation(s)
- Jun He
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Yang Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Shiming Dai
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Feng Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Yeke Wang
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Ting Shi
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Liang Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
| | - Ying Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
| | - Jun Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China.
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25
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Pupim ACE, Basso CR, Machado CCA, Watanabe PS, Fernandes GSA, ErthalL RP, Sodré GBC, Guarnier FA, Simão ANC, Araújo EJA. Long-term and low dose oral malathion exposure causes morphophysiological changes in the colon of rats. Life Sci 2023; 327:121840. [PMID: 37290667 DOI: 10.1016/j.lfs.2023.121840] [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: 03/15/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Malathion (MAL) is an organophosphate insecticide that inhibits cholinesterases, used to control pests in agriculture and to combat mosquitoes that transmit various arboviruses. As acetylcholine is one of the major neurotransmitters of the enteric nervous system (ENS), humans exposed to MAL by ingestion of contaminated food and water can develop symptoms due disfunction of the gastrointestinal tract. Although the deleterious effects after exposure to high doses are recognized, little is known about the long-term and low-dose effects of this pesticide on the structure and motility of the colon. AIMS to evaluate the effects of prolonged oral exposure to low levels of MAL on the wall structure and colonic motility parameters of young rats. MAIN METHODS The animals were divided into three groups: control, and groups that received 10 or 50 mg/kg of MAL via gavage for 40 days. The colon was collected for histological analysis and analysis of the ENS through the evaluation of total neurons and subpopulations of the myenteric and submucosal plexuses. Cholinesterase activity and functional analyzes of the colon were evaluated. KEY FINDINGS MAL treatments (10 and 50 mg/Kg) reduced the butyrylcholinesterase activity, and caused enlargement of faecal pellets, atrophy of muscle layers and several changes in neurons of both myenteric and submucosal plexi. Considering colonic contraction, MAL (50 mg/Kg) increased the number of retrograde colonic migratory motor complexes. SIGNIFICANCE The long-term exposure to low doses of MAL affects colonic morphophysiology, which highlights the need to intensify control and care in the use of this pesticide.
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Affiliation(s)
- A C E Pupim
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil.
| | - C R Basso
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil
| | - C C A Machado
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil
| | - P S Watanabe
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil
| | - G S A Fernandes
- Department of General Biology, State University of Londrina, Londrina, Paraná, Brazil
| | - R P ErthalL
- Department of General Biology, State University of Londrina, Londrina, Paraná, Brazil
| | - G B C Sodré
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil
| | - F A Guarnier
- Department of Pathological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - A N C Simão
- Department of Pathology, Clinical Analysis and Toxicology, State University of Londrina, Paraná, Brazil
| | - E J A Araújo
- Department of Histology, State University of Londrina, Londrina, Paraná, Brazil
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Huang J, Liao L, Wang G, Du Z, Wu Z. Reproductive toxicity of enrofloxacin in Caenorhabditis elegans involves oxidative stress-induced cell apoptosis. J Environ Sci (China) 2023; 127:726-737. [PMID: 36522101 DOI: 10.1016/j.jes.2022.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/07/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 06/17/2023]
Abstract
Fluoroquinolone antibiotics (FQs) that persist and bioaccumulate in the environment have aroused people's great concern. Here, we studied the adverse effects of FQs in soil animals of Caenorhabditis elegans via food-chronically exposure. The result shows C. elegans exposed to FQs exhibited reproductive toxicity with small-brood size and low-egg hatchability. To study the underlying mechanism, we conduct a deep investigation of enrofloxacin (ENR), one of the most frequently detected FQs, on nematodes which is one of commonly used animal indicator of soil sustainability. The concentration-effect curves simulated by the Hill model showed that the half effect concentrations (EC50) of ENR were (494.3 ± 272.9) µmol/kg and (107.4 ± 30.9) µmol/kg for the brood size and the hatchability, respectively. Differential gene expression between the control and the ENR-exposure group enriched with the oxidative stress and cell apoptosis pathways. The results together with the enzyme activity in oxidative stress and the cell corpses suggested that ENR-induced reproductive toxicity was related to germ cell apoptosis under oxidative stress. The risk quotients of some soil and livestock samples were calculated based on the threshold value of EC10 for the egg hatchability (2.65 µmol/kg). The results indicated that there was possible reproductive toxicity on the nematodes in certain agricultural soils for the FQs. This study suggested that chronic exposure to FQs at certain levels in environment would induce reproductive toxicity to the nematodes and might reduce the soil sustainability, alarming the environment risks of antibiotics abuse.
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Affiliation(s)
- Jiahao Huang
- Key Laboratory of Molecular Biophysics, Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lizi Liao
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Guowei Wang
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China; Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Wuhan 430205, China.
| | - Zhongkun Du
- College of Resources and Environment, Shandong Agricultural University, Taian 271018, China
| | - Zhengxing Wu
- Key Laboratory of Molecular Biophysics, Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Zhou Y, Jin Q, Xu H, Wang Y, Li M. Chronic nanoplastic exposure induced oxidative and immune stress in medaka gonad. Sci Total Environ 2023; 869:161838. [PMID: 36716889 DOI: 10.1016/j.scitotenv.2023.161838] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [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: 10/31/2022] [Revised: 01/04/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Nanoplastic (NP) pollution is a global issue because of its widespread occurrence and potential toxicity. Many studies have investigated the impacts of the short-term toxicity of NPs on organisms. Until now, only a few studies have assessed the toxicological effects of prolonged exposure to NPs at low concentrations in fish. In this study, the effects of NPs (nano-polystyrene microspheres, diameter: 100 nm) on immune and oxidative stress response, histopathology, and survival in medaka were evaluated. The effects of different concentrations (0, 10, 104, and 106 particles/L) of nanoplastics were studied in medaka Oryzias latipes after 3 months of exposure. Lysozyme enzyme activity, oxidative stress-related biomarkers (i.e., superoxide dismutase, catalase, and glutathione peroxidase), and malondialdehyde levels were decreased under NP exposure. The gonadal histology showed that high NP exposure (106 particles/L) inhibited the process of spermatogenesis and oogenesis processes, implying delayed maturation of the gonad. Furthermore, the IBR and PCA analysis revealed the potential biotoxicity of NPs and the total survival rate of medaka was significantly reduced due to the long-term exposure to NPs. Overall, prolonged exposure to low concentrations of NPs is harmful to the health of medaka gonads. In the long run, this may threaten the fish reproduction and population, suggesting the need for long-term toxicological studies to predict the aquatic animal health in nature.
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Affiliation(s)
- Yinfeng Zhou
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Qian Jin
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Haijing Xu
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Youji Wang
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Mingyou Li
- Key Laboratory of Integrated Rice-Fish Farming, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
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28
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Ozaki S, Movalli P, Cincinelli A, Alygizakis N, Badry A, Chaplow JS, Claßen D, Dekker RWRJ, Dodd B, Duke G, Koschorreck J, Pereira MG, Potter E, Slobodnik J, Thacker S, Thomaidis NS, Treu G, Walker L. The importance of in-year seasonal fluctuations for biomonitoring of apex predators: A case study of 14 essential and non-essential elements in the liver of the common buzzard (Buteobuteo) in the United Kingdom. Environ Pollut 2023; 323:121308. [PMID: 36804138 DOI: 10.1016/j.envpol.2023.121308] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/14/2022] [Revised: 01/24/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Trace elements are chemical contaminants spread in the environment by anthropogenic activities and threaten wildlife and human health. Many studies have investigated this contamination in apex raptors as sentinel birds. However, there is limited data for long-term biomonitoring of multiple trace elements in raptors. In the present study, we measured the concentrations of 14 essential and non-essential trace elements in the livers of the common buzzard (Buteo buteo) collected in the United Kingdom from 2001 to 2019 and investigated whether concentrations have changed during this period. In addition, we estimated the importance of selected variables for modelling element accumulations in tissues. Except for cadmium, hepatic concentrations of harmful elements in most buzzards were lower than the biological significance level of each element. Hepatic concentrations of certain elements, including lead, cadmium, and arsenic, varied markedly seasonally within years. Their peak was in late winter and trough in late summer, except copper which showed an opposite seasonal pattern. In addition, lead in the liver consistently increased over time, whereas strontium showed a decreasing trend. Hepatic concentrations of cadmium, mercury, and chromium increased with age, whereas selenium and chromium were influenced by sex. Hepatic concentrations of arsenic and chromium also differed between different regions. Overall, our samples showed a low risk of harmful effects of most elements compared to the thresholds reported in the literature. Seasonal fluctuation was an important descriptor of exposure, which might be related to the diet of the buzzard, the ecology of their prey, and human activities such as the use of lead shot for hunting. However, elucidating reasons for these observed trends needs further examination, and biomonitoring studies exploring the effects of variables such as age, sex, and seasonality are required.
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Affiliation(s)
- Shinji Ozaki
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom.
| | - Paola Movalli
- Naturalis Biodiversity Center, Darwinweg 2, 2333, CR, Leiden, Netherlands
| | - Alessandra Cincinelli
- Department of Chemistry "Ugo Schiff", University of Florence, Via Delle Lastruccia 3, Florence, Italy
| | - Nikiforos Alygizakis
- Environmental Institute, Okružná 784/42, 97241, Koš, Slovak Republic; National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771, Athens, Greece
| | - Alexander Badry
- German Environment Agency (Umweltbundesamt), Wörlitzer Platz 1, 06813, Dessau-Roßlau, Germany
| | - Jacqueline S Chaplow
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
| | - Daniela Claßen
- German Environment Agency (Umweltbundesamt), Wörlitzer Platz 1, 06813, Dessau-Roßlau, Germany
| | - René W R J Dekker
- Naturalis Biodiversity Center, Darwinweg 2, 2333, CR, Leiden, Netherlands
| | - Beverley Dodd
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
| | - Guy Duke
- UK Centre for Ecology and Hydrology, MacLean Bldg, Benson Ln, Crowmarsh Gifford, Wallingford, OX10 8BB, United Kingdom
| | - Jan Koschorreck
- German Environment Agency (Umweltbundesamt), Wörlitzer Platz 1, 06813, Dessau-Roßlau, Germany
| | - M Glória Pereira
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
| | - Elaine Potter
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
| | | | - Sarah Thacker
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
| | - Nikolaos S Thomaidis
- National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771, Athens, Greece
| | - Gabriele Treu
- German Environment Agency (Umweltbundesamt), Wörlitzer Platz 1, 06813, Dessau-Roßlau, Germany
| | - Lee Walker
- UK Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
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Li S, Cai M, Wang Q, Yuan Z, Li R, Wang C, Sun Y. Effect of long-term exposure to dyeing wastewater treatment plant effluent on growth and gut microbiota of adult zebrafish (Danio rerio). Environ Sci Pollut Res Int 2023; 30:53674-53684. [PMID: 36864334 DOI: 10.1007/s11356-023-26167-2] [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] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
Strict standards have been put forward for the treatment and discharge of dyeing wastewater worldwide. However, there are still traces amount of pollutants, especially emerging pollutants in dyeing wastewater treatment plant (DWTP) effluent. Few studies have focused on the chronic biological toxicity effect and mechanism of DWTP effluent. In this study, 3-month chronic compound toxic effects were investigated by the exposure of DWTP effluent using adult zebrafish. Significantly higher mortality and fatness and significantly lower body weight and body length were found in the treatment group. In addition, long-term exposure to DWTP effluent also obviously reduced liver-body weight ratio of zebrafish, causing abnormal liver development of zebrafish. Moreover, DWTP effluent led to obvious changes in the gut microbiota and microbial diversity of zebrafish. At phylum level, significantly higher of Verrucomicrobia but lower Tenericutes, Actinobacteria, and Chloroflexi were found in the control group. At genus level, the treatment group had significantly higher abundance of Lactobacillus, but significantly lower abundance of Akkermansia, Prevotella, Bacteroides, and Sutterella. These results suggested that long-term exposure to DWTP effluent led to imbalance of gut microbiota in zebrafish. In general, this research indicated that DWTP effluent pollutants could result in negative health outcomes to aquatic organisms.
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Affiliation(s)
- Shuangshuang Li
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
- Key Laboratory of Environment Controlled Aquaculture (Dalian Ocean University) Ministry of Education, Dalian, 116023, China
| | - Mingcan Cai
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Qing Wang
- College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Zixi Yuan
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
| | - Ruixuan Li
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
| | - Chun Wang
- Key Laboratory of Environment Controlled Aquaculture (Dalian Ocean University) Ministry of Education, Dalian, 116023, China.
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China.
| | - Yingxue Sun
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, State Environmental Protection Key Laboratory of Food Chain Pollution Control, School of Ecology and Environment, Beijing Technology and Business University, Beijing, 100048, China
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30
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Gonzalez-Alcocer A, Gopar-Cuevas Y, Soto-Dominguez A, Castillo-Velazquez U, de Jesus Loera-Arias M, Saucedo-Cardenas O, de Oca-Luna RM, Garcia-Garcia A, Rodriguez-Rocha H. Combined chronic copper exposure and aging lead to neurotoxicity in vivo. Neurotoxicology 2023; 95:181-192. [PMID: 36775208 DOI: 10.1016/j.neuro.2023.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/27/2022] [Revised: 12/28/2022] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
The environment, containing pollutants, toxins, and transition metals (copper, iron, manganese, and zinc), plays a critical role in neurodegenerative disease development. Copper occupational exposure increases Parkinson's disease (PD) risk. Previously, we determined the mechanisms by which copper induces dopaminergic cell death in vitro. The copper transporter protein 1 (Ctr1) overexpression led to intracellular glutathione depletion potentiating caspase-3 mediated cell death; oxidative stress was primarily cytosolic, and Nrf2 was upregulated mediating an antioxidant response; and protein ubiquitination, AMPK-Ulk1 signaling, p62, and Atg5-dependent autophagy were increased as a protective mechanism. However, the effect of chronic copper exposure on the neurodegenerative process has not been explored in vivo. We aimed to elucidate whether prolonged copper treatment reproduces PD features and mechanisms during aging. Throughout 40 weeks, C57BL/6J male mice were treated with copper at 0, 100, 250, and 500 ppm in the drinking water. Chronic copper exposure altered motor function and induced dopaminergic neuronal loss, astrocytosis, and microgliosis in a dose-dependent manner. α-Synuclein accumulation and aggregation were increased in response to copper, and the proteasome and autophagy alterations, previously observed in vitro, were confirmed in vivo, where protein ubiquitination, AMPK phosphorylation, and the autophagy marker LC3-II were also increased by copper exposure. Finally, nitrosative stress was induced by copper in a concentration-dependent fashion, as evidenced by increased protein nitration. To our knowledge, this is the first study combining chronic copper exposure and aging, which may represent an in vivo model of non-genetic PD and help to assess potential prophylactic and therapeutic approaches. DATA AVAILABILITY: The data underlying this article are available in the article.
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Affiliation(s)
- Alfredo Gonzalez-Alcocer
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Yareth Gopar-Cuevas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Adolfo Soto-Dominguez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Uziel Castillo-Velazquez
- Departamento de Inmunología Veterinaria, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Escobedo, Nuevo León 66050, Mexico
| | - Maria de Jesus Loera-Arias
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Odila Saucedo-Cardenas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Roberto Montes de Oca-Luna
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico
| | - Aracely Garcia-Garcia
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico.
| | - Humberto Rodriguez-Rocha
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 64460, Mexico.
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31
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Zhou Y, Gui L, Wei W, Xu EG, Zhou W, Sokolova IM, Li M, Wang Y. Low particle concentrations of nanoplastics impair the gut health of medaka. Aquat Toxicol 2023; 256:106422. [PMID: 36773443 DOI: 10.1016/j.aquatox.2023.106422] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 10/18/2022] [Revised: 01/31/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
The environmental occurrence of nanoplastics (NPs) is now evident but their long-term impacts on organisms are unclear, limiting ecological and health risk assessment. We hypothesized that chronic exposure to low particle concentrations of NPs can result in gut-associated toxicity, and subsequently affect survival of fish. Japanese medaka Oryzias latipes were exposed to polystyrene NPs (diameter 100 nm; 0, 10, 104, and 106 items/L) for 3 months, and histopathology, digestive and antioxidant enzymes, immunity, intestinal permeability, gut microbiota, and mortality were assessed. NP exposures caused intestinal lesions, and increased intestinal permeability of the gut. The trypsin, lipase, and chymotrypsin activities were increased, but the amylase activity was decreased. Oxidative damage was reflected by the decreased superoxide dismutase and alkaline phosphatase and increased malondialdehyde, catalase, and lysozyme. The integrated biomarkers response index values of all NP-exposed medaka were significantly increased compared to the control group. Moreover, NP exposures resulted in a decrease of diversity and changed the intestinal microbiota composition. Our results provide new evidence that long-term NPs exposure impaired the health of fish at extremely low particle concentrations, suggesting the need for long-term toxicological studies resembling environmental particle concentrations when assessing the risk of NPs.
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Affiliation(s)
- Yinfeng Zhou
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center For Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Lang Gui
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center For Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Wenbo Wei
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center For Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Elvis Genbo Xu
- Department of Biology, University of Southern Denmark, Odense M 5230, Denmark
| | - Wenzhong Zhou
- Eco‑environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai 201403, China
| | - Inna M Sokolova
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany; Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany
| | - Mingyou Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center For Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Youji Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center For Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
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32
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Ke L, Feng G, Zhang Y, Ma X, Zhao B, Sun Y, Dong Z, Xing J, Wang S, Di Q. Causal effects of prenatal and chronic PM 2.5 exposures on cognitive function. Environ Res 2023; 219:115138. [PMID: 36565844 DOI: 10.1016/j.envres.2022.115138] [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: 08/12/2022] [Revised: 11/08/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Growing evidence indicated an association between PM2.5 exposure and cognitive function, but the causal effect and the cognitive effect of prenatal PM2.5 exposure remain elusive. We obtained 15,099 subjects from a nationally representative sample of China and measured their cognitive performance. We ascertained subjects' prenatal PM2.5 exposure and chronic PM2.5 exposure of the recent two years. Using this national sample, we found that PM2.5 exposure during the mid- to late-pregnancy was significantly associated with declined cognition and income; chronic PM2.5 exposure was also independently associated with cognition and income measured at adulthood with greater magnitude. Negative effect modification was observed between prenatal and chronic PM2.5 exposure. Instrumental variable approach and difference-in-difference study verified causal effects: every 1 μg/m3 increase in prenatal and chronic PM2.5 exposures were causally associated with -0.22% (-0.38%, -0.06%) and -0.17% (-0.31%, -0.03%) changes in cognitive function, respectively. People with low cognition and low income were more vulnerable to PM2.5 exposure with greater cognitive and income decline. In the future, although China's improved air quality continues to benefit people and reduce cognitive decline induced by chronic PM2.5 exposure, high prenatal PM2.5 exposure will continue to hurt the overall cognition of Chinese population, since in total 360 million people were born during the 2000-2020 polluted era. Prenatal PM2.5-induced cognitive decline would remain largely unchanged before 2050 and gradually reduce after 2065, regardless of environmental policy scenarios. The long-lasting cognitive impact of PM2.5 is worth considering while enacting environmental policies.
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Affiliation(s)
- Limei Ke
- School of Medicine, Tsinghua University, Beijing, 100084, China.
| | - Guoqing Feng
- School of Medicine, Tsinghua University, Beijing, 100084, China.
| | - Yao Zhang
- Soochow College, Soochow University, Suzhou, 215006, China; Division of Sports Science & Physical Education, Tsinghua University, Beijing, 100084, China.
| | - Xindong Ma
- Division of Sports Science & Physical Education, Tsinghua University, Beijing, 100084, China; IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, 100084, China.
| | - Bin Zhao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of environment, Tsinghua University, Beijing, 100084, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China.
| | - Yisheng Sun
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of environment, Tsinghua University, Beijing, 100084, China.
| | - Zhaoxin Dong
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of environment, Tsinghua University, Beijing, 100084, China.
| | - Jia Xing
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of environment, Tsinghua University, Beijing, 100084, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China.
| | - Shuxiao Wang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of environment, Tsinghua University, Beijing, 100084, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, China.
| | - Qian Di
- Vanke School of Public Health, Tsinghua University, Beijing, 100084, China; Institute for Healthy China, Tsinghua University, Beijing, 100084, China.
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Nagloo N, Rigosi E, O'Carroll DC. Acute and chronic toxicity of imidacloprid in the pollinator fly, Eristalis tenax L., assessed using a novel oral bioassay. Ecotoxicol Environ Saf 2023; 251:114505. [PMID: 36646007 DOI: 10.1016/j.ecoenv.2023.114505] [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: 02/25/2022] [Revised: 11/09/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Imidacloprid is a neonicotinoid neurotoxin that remains widely used worldwide and persists in the environment, resulting in chronic exposure to non-target insects. To accurately map dose-dependent effects of such exposure across taxa, toxicological assays need to assess relevant modes of exposure across indicator species. However, due to the difficulty of these experiments, contact bioassays are most frequently used to quantify dose. Here, we developed a novel naturalistic feeding bioassay to precisely measure imidacloprid ingestion and its toxicity for acute and chronic exposure in a dipteran, Eristalis tenax L., an important member of an under-represented pollinator group. Flies which ingested imidacloprid dosages lower than 12.1 ng/mg all showed consistent intake volumes and learned improved feeding efficiency over successive feeding sessions. In contrast, at doses of 12.1 ng/mg and higher flies showed a rapid onset of severe locomotive impairment which prevented them from completing the feeding task. Neither probability of survival nor severe locomotive impairment were significantly higher than the control group until doses of 1.43 ng/mg or higher were reached. We were unable to measure a median lethal dose for acute exposure (72 h) due to flies possessing a relatively high tolerance for imidacloprid. However, with chronic exposure (18 days), mortality went up and an LD50 of 0.41 ng/mg was estimated. Severe locomotive impairment (immobilisation) tended to occur earlier and at lower dosages than lethality, with ED50s of 7.82 ng/mg and 0.17 ng/mg for acute and chronic exposure, respectively. We conclude that adult Eristalis possess a much higher tolerance to this toxin than the honeybees that they mimic. The similarity of the LD50 to other dipterans such as the fruitfly and the housefly suggests that there may be a phylogenetic component to pesticide tolerance that merits further investigation. The absence of obvious adverse effects at sublethal dosages also underscores a need to develop better tools for quantifying animal behaviour to evaluate the impact of insecticides on foraging efficiency in economically important species.
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Affiliation(s)
| | - Elisa Rigosi
- Department of Biology Lund University, Lund, Sweden
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Uroosa, Kazmi SSUH, Rahman MS, Xu H. Can functional units of periphytic protozoan communities be used to evaluate the effects of harmful algal blooms on ecological quality in marine ecosystems? Environ Sci Pollut Res Int 2023; 30:16408-16417. [PMID: 36180800 DOI: 10.1007/s11356-022-23277-1] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Based on biological traits, the ecological quality status under the pressure of two harmful algal bloom (HAB) species was evaluated using functional units (FUs) of periphytic protozoan communities. Five treatments with different concentrations of Alexandrium tamarense and Gymnodinium catenatum, i.e., 100, 102, 103, 104, and 105 cells ml-1, were used. A total of 20 FUs were identified from 25 test protozoan species. Among these FUs, vagile algivores with large sizes showed a decreasing trend (i.e., in diversity and abundance) with increasing concentrations of algae, while vagile bacterivores and non-selectives with small sizes dominated at concentrations of 104 cells ml-1 of both algal species. Ellipse tests on pair-wise functional distinctness indices revealed a significant departure of test protozoan communities from an expected functional distinctness breadth when algal concentrations exceeded 104 cells ml-1. Based on these findings, it was concluded that FUs of periphytic protozoa may be a useful tool for evaluating the effects of HABs on ecological quality status in marine ecosystems.
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Affiliation(s)
- Uroosa
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Syed Shabi Ul Hassan Kazmi
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Mohammad Shafiqur Rahman
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Henglong Xu
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China.
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Chang X, Shen Y, Yun L, Wang X, Feng J, Yang G, Meng X, Zhang J, Su X. The antipsychotic drug olanzapine altered lipid metabolism in the common carp (Cyprinus carpio L.): Insight from the gut microbiota-SCFAs-liver axis. Sci Total Environ 2023; 856:159054. [PMID: 36170916 DOI: 10.1016/j.scitotenv.2022.159054] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/26/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Olanzapine (OLA) is a common drug used to treat schizophrenia and has recently come under increasing scrutiny as an emerging contaminant. However, its impact on lipid metabolism in fish and its mechanisms of action are not well understood. In this study, common carp were exposed to 0, 10, 100, and 250 μM OLA for 60 days. The results indicated that OLA exposure increased weight gain, total cholesterol (TC), low-density lipoprotein (LDL), and triglycerides (TG) and decreased high-density lipoprotein (HDL). In addition, lipids accumulated in the liver of the common carp. To explore the underlying mechanisms of action, gut microbiota, short-chain fatty acids (SCFAs), liver transcripts, and genes related to lipid metabolism were measured. It was discovered that OLA exposure altered the common carp gut microbiota composition and increased the abundance of SCFA-producing bacteria. Correspondingly, this study showed that OLA exposure increased the levels of SCFAs, which are highly relevant to the development of lipid accumulation. Transcriptome sequencing results indicated that OLA exposure could change lipid metabolism signalling pathways, including steroid biosynthesis, the PPAR signalling pathway, asglycerophospholipid metabolism, glycerolipid metabolism, and fatty acid metabolic pathways of the common carp. Additionally, OLA exposure interrupted lipid metabolism by means of significant upregulation of lipid synthesis-related genes, including pparγ, srebp1, and fas. OLA exposure also resulted in significant lipolysis-related gene downregulation, including cpt, lpl, hsl, and pparα. The results of this study indicated that contamination of aquatic environments with OLA alters lipid metabolism in common carp. In addition, the underlying mechanism might be due in part to the modulation of the gut microbiota-SCFA-PPAR signalling pathway.
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Affiliation(s)
- Xulu Chang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Yihao Shen
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Lili Yun
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Xianfeng Wang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Junchang Feng
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Guokun Yang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Xiaolin Meng
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Jianxin Zhang
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Xi Su
- Henan Mental Hospital, the Second Affiliated Hospital of Xinxiang Medical University, Xinxiang 453007, PR China.
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Brindhadevi K, Barceló D, Lan Chi NT, Rene ER. E-waste management, treatment options and the impact of heavy metal extraction from e-waste on human health: Scenario in Vietnam and other countries. Environ Res 2023; 217:114926. [PMID: 36435494 DOI: 10.1016/j.envres.2022.114926] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/31/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
Ho Chi Minh (HCM) City is the most important urban region of Vietnam, Southeast Asia. In recent times, the quantity of electronic waste (e-waste) has been growing by several thousand tonnes every year. In this research, some of the existing and developing technologies being employed for the recycling of e-waste have been reviewed. Accordingly, the paper has been divided into three sections namely, e-waste treatment technologies in Ho Chi Minh City, the effect of heavy metals on human health and the extraction of metals from e-waste using pyrolysis, hydrometallurgy, bioleaching, mechanical, and air classifier methods, respectively. The extraction of precious metals and heavy metals such as Cd, Cr, Pb, Hg, Cu, Se, and Zn from e-waste can be hazardous to human health. For example, lead causes hazards to the central and peripheral nervous systems, blood system and kidneys; copper causes liver damage; chronic exposure to cadmium ends up causing lung cancer and kidney damage, and mercury can cause brain damage. Thus, this study examines the key findings of many research and review articles published in the field of e-waste management and the health impacts of metal pollution.
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Affiliation(s)
- Kathirvel Brindhadevi
- Computational Engineering and Design Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| | - Damià Barceló
- Catalan Institute for Water Research (ICRA-CERCA), C. Emili Grahit 101, 17003, Girona, Spain; IDAEA-CSIC, Department of Environmental Chemistry, C/Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2601DA Delft, the Netherlands.
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Petit JCJ, Peeters M, Remy S. Sustainable health-based soil standards for arsenic using epidemiological data and toxicokinetic/probabilistic modelling. Environ Geochem Health 2022; 44:3853-3861. [PMID: 34714462 DOI: 10.1007/s10653-021-01143-2] [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] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
This study presents an alternative method to the traditional reference dose approach for the determination of health risk-based soil standards for arsenic. The model combines multimedia equations for air, soil and dietary exposure, a toxicokinetic component, a probabilistic output, a reference distribution for urine arsenic in the general population and exposure parameters values traceable in US-EPA or EFSA reference studies. The model calculates a mean inorganic As urine concentration AsU (sum of inorganic arsenic Asi and its metabolites) from environmental data and exposure parameters, which is attributed to the central value of a lognormal distribution. Risk is assessed by comparing a high percentile of the modelled distribution to the target AsU attributed to the reference value of 10 µg/gCREA (microgram As per gram of creatinine), the upper confidence interval of the 95th percentile from the AsU distribution in the French population. A soil standard value of 40 mg/kg is determined as being the arsenic concentration in soil not giving rise to more than 5% probability of having a AsU concentration above the target value of 10 µg/gCREA. Once soil As concentrations above 40 mg/kg are measured, further environmental investigations should be carried, involving an assessment of As bioaccessibility to address health risks and decide of regulatory measures in residential setting.
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Affiliation(s)
- Jérôme C J Petit
- Institut Scientifique de Service Public, Rue du Chéra, 200, 4000, Liège, Belgium.
| | - Marie Peeters
- Institut Scientifique de Service Public, Rue du Chéra, 200, 4000, Liège, Belgium
| | - Suzanne Remy
- Institut Scientifique de Service Public, Rue du Chéra, 200, 4000, Liège, Belgium
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Gonzalez-Alcocer A, Gopar-Cuevas Y, Soto-Dominguez A, Loera-Arias MDJ, Saucedo-Cardenas O, Montes de Oca-Luna R, Rodriguez-Rocha H, Garcia-Garcia A. Peripheral tissular analysis of rapamycin's effect as a neuroprotective agent in vivo. Naunyn Schmiedebergs Arch Pharmacol 2022; 395:1239-1255. [PMID: 35895156 DOI: 10.1007/s00210-022-02276-6] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 07/15/2022] [Indexed: 10/16/2022]
Abstract
Rapamycin is the best-characterized autophagy inducer, which is related to its antiaging and neuroprotective effects. Although rapamycin is an FDA-approved drug for human use in organ transplantation and cancer therapy, its administration as an antiaging and neuroprotective agent is still controversial because of its immunosuppressive and reported side effects. Therefore, it is critical to determine whether the dose that exerts a neuroprotective effect, 35 times lower than that used as an immunosuppressant agent, harms peripheral organs. We validated the rapamycin neuroprotective dosage in a Parkinson's disease (PD) model induced with paraquat. C57BL/6 J mice were treated with intraperitoneal (IP) rapamycin (1 mg/kg) three times per week, followed by paraquat (10 mg/kg) twice per week for 6 weeks, along with rapamycin on alternate days. Rapamycin significantly decreased dopaminergic neuronal loss induced by paraquat. Since rapamycin's neuroprotective effect in a PD model was observed at 7 weeks of treatment; we evaluated its effect on the liver, kidney, pancreas, and spleen. In addition, we prolonged treatment with rapamycin for 14 weeks. Tissue sections were subjected to histochemical, immunodetection, and morphometric analysis. Chronic rapamycin administration does not affect bodyweight, survival, and liver or kidney morphology. Although the pancreas tissular architecture and cellular distribution in Langerhans islets are modified, they may be reversible. The spleen B lymphocyte and macrophage populations were decreased. Notably, the lymphocyte T population was not affected. Therefore, chronic administration of a rapamycin neuroprotective dose does not produce significant tissular alterations. Our findings support the therapeutic potential of rapamycin as a neuroprotective agent.
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Affiliation(s)
- Alfredo Gonzalez-Alcocer
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Yareth Gopar-Cuevas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Adolfo Soto-Dominguez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Maria de Jesus Loera-Arias
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Odila Saucedo-Cardenas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Roberto Montes de Oca-Luna
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Humberto Rodriguez-Rocha
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México
| | - Aracely Garcia-Garcia
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Francisco I. Madero S/N, 64460, Monterrey, Nuevo León, México.
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Xia D, Liu J, Yong J, Li X, Ji W, Zhao Z, Wang X, Xiao C, Wu S, Liu H, Zhao H, He Y. Strategies for understanding the role of cellular heterogeneity in the pathogenesis of lung cancer: a cell model for chronic exposure to cigarette smoke extract. BMC Pulm Med 2022; 22:333. [PMID: 36056339 PMCID: PMC9438261 DOI: 10.1186/s12890-022-02116-6] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022] Open
Abstract
Background Human tumors are highly heterogeneous at the cellular, molecular, genetic and functional levels. Tumor heterogeneity has tremendous impact on cancer progression and treatment responses. However, the mechanisms for tumor heterogeneity have been poorly understood due to the lack of experimental models. Methods This study provides a novel exploration and analysis of the impacts of cellular and molecular heterogeneity of human lung epithelial cells on their malignant transformation following chronic exposure to cigarette smoke extracts. Results The ability of cigarette smoke extract (CSE) to cause malignant transformation of the human bronchial epithelial cells (16HBE) is dependent on the sizes of the cells. Epithelial-mesenchymal transition (EMT) plays an important role in this process. Mechanistically, CSE-induced malignant transformation of 16HBE cells was closely linked to the reduced relative telomere length of the larger 16HBE cells, thereby up-regulation of the expression of stemness genes. Conclusions These findings provide novel insights for understanding the impact of cellular heterogeneity in lung cancer development. The in vitro transformation model described in this study could be extrapolated to studying the pathogenesis of other malignancies, as well as for mechanistic studies that are not feasible in vivo. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02116-6.
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Affiliation(s)
- Dong Xia
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jieyi Liu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Juanjuan Yong
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiang Li
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, Henan, People's Republic of China
| | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Zhiqiang Zhao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiaohui Wang
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Chen Xiao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Sai Wu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Huaixiang Liu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Heping Zhao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Yun He
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China.
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Sangsuwan T, Mannervik M, Haghdoost S. Transgenerational effects of gamma radiation dose and dose rate on Drosophila flies irradiated at an early embryonal stage. Mutat Res Genet Toxicol Environ Mutagen 2022; 881:503523. [PMID: 36031335 DOI: 10.1016/j.mrgentox.2022.503523] [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: 02/15/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Ionizing radiation (IR) kills cells mainly through induction of DNA damages and the surviving cells may suffer from mutations. Transgenerational effects of IR are well documented, but the exact mechanisms underlying them are less well understood; they include induction of mutations in germ cells and epigenetic inheritance. Previously, effects in the offspring of mice and zebrafish exposed to IR have been reported. A few studies also showed indications of transgenerational effects of radiation in humans, particularly in nuclear power workers. In the present project, short- and long-term effects of low-dose-rate (LDR; 50 and 97 mGy/h) and high-dose-rate (HDR; 23.4, 47.1 and 495 Gy/h) IR in Drosophila embryos were investigated. The embryos were irradiated at different doses and dose rates and radiosensitivity at different developmental stages was investigated. Also, the survival of larvae, pupae and adults developed from embryos irradiated at an early stage (30 min after egg laying) were studied. The larval crawling and pupation height assays were applied to investigate radiation effects on larval locomotion and pupation behavior, respectively. In parallel, the offspring from 3 Gy irradiated early-stage embryos were followed up to 12 generations and abnormal phenotypes were studied. Acute exposure of embryos at different stages of development showed that the early stage embryo is the most sensitive. The effects on larval locomotion showed no significant differences between the dose rates but a significant decrease of locomotion activity above 7 Gy was observed. The results indicate that embryos exposed to the low dose rates have shorter eclosion times. At the same cumulative dose (1 up to 7 Gy), HDR is more embryotoxic than LDR. We also found a radiation-induced depigmentation on males (A5 segment of the dorsal abdomen, A5pig-) that can be transmitted up to 12 generations. The phenomenon does not follow the classical Mendelian laws of segregation.
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Affiliation(s)
- Traimate Sangsuwan
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Mattias Mannervik
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Siamak Haghdoost
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden; University of Caen Normandy, Cimap-Aria, Ganil, and Advanced Resource Center for HADrontherapy in Europe (ARCHADE), Caen, France.
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Razavi Y, Najafi M, Haghparast A, Keyhanfar F, Shabani R, Mehdizadeh M. Cannabidiol Modulating the Expression of Neurotrophin Signaling Pathways in Chronic Exposure to Methamphetamine in Rats During Abstinence Period. Basic Clin Neurosci 2022; 13:719-730. [PMID: 37313028 PMCID: PMC10258595 DOI: 10.32598/bcn.2021.3059.1] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 05/29/2021] [Accepted: 06/09/2021] [Indexed: 11/02/2023] Open
Abstract
Introduction Several neuropsychiatric disorders, such as addiction, have indicated variations in the levels of neurotrophic factors. As an extremely addictive stimulant, methamphetamine (METH) is associated with rising levels of abuse worldwide. We have recently demonstrated that repeated intracerebroventricular (ICV) of cannabidiol (CBD), the most important non-psychotomimetic compound, can lead to diminished impairing memory and hippocampal damage caused by chronic exposure to METH (CEM) in rats over the abstinence period. Furthermore, the results indicated a possible contribution of the neurotrophin signaling pathway (NSP) in regulating neurogenesis and survival. This study intends to evaluate whether these effects remained as measured in molecular pathways after the abstinence period. Methods The animals were given 2mg/kg METH twice a day for 10 days. Then, we adopted real-time polymerase chain reaction (PCR) throughout the 10-day abstinence period to assess the CBD's effect (10 and 50μg/5μL) on the levels of the mRNA expression of the NSP. Results The findings suggested that CEM, when compared to the control group in the hippocampus, downregulated mRNA expression of NSP. Moreover, a dosage of 50 μg/5μL CBD may possibly enhance the mRNA expression level of BDNF/TrkB and NGF/TrkA in the hippocampus. Besides, the expression of RAF-1 mRNA level could be reversed significantly by both doses of CBD. Conclusion According to our results, CBD may partly bring about neuroprotective effects by modulating the NSP. These findings set forth solid evidence demonstrating that CBD is a protective factor attributed to neuropsychiatric disorders, such as METH addiction.
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Affiliation(s)
- Yasaman Razavi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Najafi
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariborz Keyhanfar
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ronak Shabani
- Reproductive Sciences and Technology Research Center, Department of Anatomy, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Reproductive Sciences and Technology Research Center, Department of Anatomy, Iran University of Medical Sciences, Tehran, Iran
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Rozman U, Jemec Kokalj A, Dolar A, Drobne D, Kalčíková G. Long-term interactions between microplastics and floating macrophyte Lemna minor: The potential for phytoremediation of microplastics in the aquatic environment. Sci Total Environ 2022; 831:154866. [PMID: 35351508 DOI: 10.1016/j.scitotenv.2022.154866] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [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: 12/20/2021] [Revised: 01/20/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
The presence of microplastics (MPs) in the environment has raised many concerns, and therefore approaches and technologies to remove them in situ are of high interest. In this context, we investigated the interactions between polyethylene MPs (fragments with a mean size of 149 ± 75 μm) and an aquatic floating macrophyte Lemna minor in order to assess its potential use for in situ phytoremediation. We first investigated the long-term effects of a high (100 mg/L = 9600 MPs/L), but still environmentally relevant concentration of MPs on L. minor. Subsequently bioadhesion of MPs was studied and the number and strength of MPs adhering to plant biomass were assessed. MPs did not adversely affect various parameters of plants (e.g., specific growth rate, chlorophyll contents, total antioxidant capacity, electron transport system activity, and contents of energy-rich molecules) throughout the duration of the experiment (12 weeks), except for the first week of the experiment, when protein content and total antioxidant capacity were affected. On the other hand, MPs affected the root length of L. minor during the first eight weeks of the experiment, while further exposure resulted in a decrease in the effects, indicating the ability of L. minor to tolerate the presence of MPs for a long period of time. MPs adhered rapidly to the plant biomass and the average percentages of strongly and weakly adhered particles were 6.5% and 20.0%, respectively, of the total MPs applied. In summary, results of this study suggest that L. minor can tolerate hotspot concentrations of MPs and can collect MPs from the water surface. Therefore, phytoremediation using floating plants could be considered as a potential method for in situ removal of MPs from the aquatic environment.
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Affiliation(s)
- Ula Rozman
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, 113 Večna pot, SI-1000 Ljubljana, Slovenia
| | - Anita Jemec Kokalj
- University of Ljubljana, Biotechnical Faculty, 101 Jamnikarjeva, SI-1000 Ljubljana, Slovenia
| | - Andraž Dolar
- University of Ljubljana, Biotechnical Faculty, 101 Jamnikarjeva, SI-1000 Ljubljana, Slovenia
| | - Damjana Drobne
- University of Ljubljana, Biotechnical Faculty, 101 Jamnikarjeva, SI-1000 Ljubljana, Slovenia
| | - Gabriela Kalčíková
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, 113 Večna pot, SI-1000 Ljubljana, Slovenia.
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Shen Q, Zhan Y, Jia X, Li B, Zhu X, Gao T. Combined effects of the pesticide spinetoram and the cyanobacterium Microcystis on the water flea Daphnia pulex. Environ Sci Pollut Res Int 2022; 29:47148-47158. [PMID: 35175534 DOI: 10.1007/s11356-022-18617-0] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Spinetoram is one of the most worldwidely used pesticides for its high insecticidal efficacy and low human toxicity. Following the large usage of spinetoram, the ecotoxicity and environmental risks to aquatic ecosystems have call for urgent study. In the present study, we investigated the combined effects of spinetoram and the harmful alga Microcystis aeruginosa in freshwater, on survival and reproduction of Daphnia pulex. Acute toxicity test of spinetoram resulted in negative effects on survival, with a 48-h LC50 value of 37.71 μg L-1. Under the long-time exposure to environmentally relevant concentrations (0.18 and 0.35 μg L-1) of spinetoram and a low composition of Microcystis (30%) in the diet, D. pulex showed both shorter longevity and lower fecundity; the time to first brood also increased. At population level, carrying capacity was highly decreased by spinetoram and Microcystis, whereas a significant decrease of intrinsic growth rate was observed at 0.35 μg L-1 spinetoram with 30% Microcystis as food. The present study highlighted that pesticide spinetoram had highly toxic effects on D. pulex and could reduce the tolerance of D. pulex to M. aeruginosa, causing great effects on D. pulex population in natural waterbodies.
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Affiliation(s)
- Qiutong Shen
- Department of Marine Biology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, 210098, China
| | - Yihe Zhan
- Department of Marine Biology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, 210098, China
| | - Xuanhe Jia
- Department of Marine Biology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, 210098, China
| | - Bangping Li
- Shanghai Cremo Laboratory Co, 688 Qiushi Road, Shanghai, 201512, China
| | - Xuexia Zhu
- Department of Marine Biology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, 210098, China
| | - Tianheng Gao
- Department of Marine Biology, College of Oceanography, Hohai University, 1 Xikang Road, Nanjing, 210098, China.
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Honda TJ, Kazemiparkouhi F, Henry TD, Suh HH. Long-term PM 2.5 exposure and sepsis mortality in a US medicare cohort. BMC Public Health 2022; 22:1214. [PMID: 35717154 PMCID: PMC9206363 DOI: 10.1186/s12889-022-13628-5] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background Risk factors contributing to sepsis-related mortality include clinical conditions such as cardiovascular disease, chronic lung disease, and diabetes, all of which have also been shown to be associated with air pollution exposure. However, the impact of chronic exposure to air pollution on sepsis-related mortality has been little studied. Methods In a cohort of 53 million Medicare beneficiaries (228,439 sepsis-related deaths) living across the conterminous United States between 2000 and 2008, we examined the association of long-term PM2.5 exposure and sepsis-related mortality. For each Medicare beneficiary (ages 65–120), we estimated the 12-month moving average PM2.5 concentration for the 12 month before death, for their ZIP code of residence using well validated GIS-based spatio-temporal models. Deaths were categorized as sepsis-related if they have ICD-10 codes for bacterial or other sepsis. We used Cox proportional hazard models to assess the association of long-term PM2.5 exposure on sepsis-related mortality. Models included strata for age, sex, race, and ZIP code and controlled for neighborhood socio-economic status (SES). We also evaluated confounding through adjustment of neighborhood behavioral covariates. Results A 10 μg/m3 increase in 12-month moving average PM2.5 was associated with a 9.1% increased risk of sepsis mortality (95% CI: 3.6–14.9) in models adjusted for age, sex, race, ZIP code, and SES. HRs for PM2.5 were higher and statistically significant for older (> 75), Black, and urban beneficiaries. In stratified analyses, null associations were found for younger beneficiaries (65–75), beneficiaries who lived in non-urban ZIP codes, and those residing in low-SES urban ZIP codes. Conclusions Long-term PM2.5 exposure is associated with elevated risks of sepsis-related mortality.
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Affiliation(s)
- Trenton J Honda
- School of Clinical and Rehabilitation Sciences, Northeastern University, 360 Huntington Avenue, Boston, MA, 02115, USA.
| | | | - Trenton D Henry
- Division of Public Health, Department of Family and Preventive Medicine, University of Utah, Salt Lake City, UT, USA
| | - Helen H Suh
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, USA
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Kim S, Kim JH, Cho S, Lee DE, Clark JM, Lee SH. Chronic exposure to field-realistic doses of imidacloprid resulted in biphasic negative effects on honey bee physiology. Insect Biochem Mol Biol 2022; 144:103759. [PMID: 35341906 DOI: 10.1016/j.ibmb.2022.103759] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 11/26/2021] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
There have been many investigations on the negative effects of imidacloprid (IMD) on honey bees. IMD is known to disrupt honey bee physiology and colony health at a relatively low concentration compared to other pesticides. In this study, honey bee colonies were chronically exposed to field-realistic concentrations (5, 20, and 100 ppb) of IMD, and the body weight, flight performance, carbohydrate reserve, and lipid contents of forager bees analyzed. Transcriptome analyses followed by quantitative PCR were also conducted for both nurse and forager bees to elucidate any changes in energy metabolism related to phenotypic disorders. The body weights of newly emerged and nurse bees showed decreasing tendencies as the IMD concentration increased. In forager bees, however, IMD induced a biphasic change in body weight: body weight was decreased at the lower concentrations (5 and 20 ppb) but increased at the higher concentration (100 ppb). Nevertheless, the flight capability of forager bees significantly decreased in a concentration-dependent manner. The effects of IMD on target gene transcription in forager bees showed biphasic patterns between low (5 and 20 ppb) and high (100 ppb) concentrations. Nurse bees showed typical features of premature transition to foragers in a concentration-dependent manner. When exposed to low concentrations, forager bees exhibited downregulation of genes involved in carbohydrate and lipid metabolism and in the insulin/insulin-like growth factor signaling pathway, upregulation of transporter activity, and a dose-dependent body weight reduction, which were similar to insulin resistance and diabetic symptoms. However, increased lipid metabolism and decreased energy metabolism with body weight gain were observed at high IMD concentration. Considered together, these results suggest that field-realistic doses of IMD alter honey bee energy metabolism in distinctly different ways at low and high concentrations, both of which negatively affect honey bee colony health.
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Affiliation(s)
- Sanghyeon Kim
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Ju Hyeon Kim
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Susie Cho
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul, South Korea
| | - Do Eun Lee
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul, South Korea
| | - John Marshall Clark
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, United States
| | - Si Hyeock Lee
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South Korea; Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, Seoul, South Korea.
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Cuccaro A, Oliva M, De Marchi L, Vieira Sanches M, Bontà Pittaluga G, Meucci V, Battaglia F, Puppi D, Freitas R, Pretti C. Biochemical response of Ficopomatus enigmaticus adults after exposure to organic and inorganic UV filters. Mar Pollut Bull 2022; 178:113601. [PMID: 35367697 DOI: 10.1016/j.marpolbul.2022.113601] [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: 01/03/2022] [Revised: 01/31/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
With the increase of UV filters usage and consequent release into aquatic environments, the concerns about their potential ecological risks are also increasing. According to this, in the present study, adult polychaetes of the species Ficopomatus enigmaticus were chronically exposed to three concentrations (0.01, 0.1 and 0.5 mg/L) of organic and inorganic filters (Ethylhexyl methoxycinnamate (EHMC) and nanoparticulate Zinc oxide (nZnO), respectively) in order to analyse biochemical responses related to cellular damage, antioxidant defence, biotransformation mechanisms and, lastly, neurotoxicity. Despite major lipid peroxidation caused by EHMC was observed, both UV filters have produced the same response patterns. In details, a clear concentration-dependent activation of glutathione S-transferases and a significant decrease of acetylcholinesterase levels defined an important neurotoxic effect was observed for both contaminants. These results become important to expand the limited scientific literature on biochemical responses of marine and brackish water invertebrates to organic and inorganic UV filters.
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Affiliation(s)
- Alessia Cuccaro
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal; Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata "G. Bacci" (CIBM), Livorno, Italy
| | - Matteo Oliva
- Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata "G. Bacci" (CIBM), Livorno, Italy.
| | - Lucia De Marchi
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal; Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata "G. Bacci" (CIBM), Livorno, Italy
| | | | - Gianluca Bontà Pittaluga
- Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata "G. Bacci" (CIBM), Livorno, Italy
| | - Valentina Meucci
- Dipartimento di Scienze Veterinarie, Università di Pisa, Via Livornese lato monte, Pisa, Italy
| | - Federica Battaglia
- Dipartimento di Scienze Veterinarie, Università di Pisa, Via Livornese lato monte, Pisa, Italy
| | - Dario Puppi
- Dipartimento di Chimica & Chimica Industriale, Università di Pisa, Via G. Moruzzi 13, Pisa, Italy
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Carlo Pretti
- Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata "G. Bacci" (CIBM), Livorno, Italy; Dipartimento di Scienze Veterinarie, Università di Pisa, Via Livornese lato monte, Pisa, Italy
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Molina EM, Kavazis AN, Mendonça MT, Akingbemi BT. Effects of different DDE exposure paradigms on testicular steroid hormone secretion and hepatic oxidative stress in male Long-Evans rats. Gen Comp Endocrinol 2022; 317:113963. [PMID: 34902316 DOI: 10.1016/j.ygcen.2021.113963] [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: 02/15/2021] [Revised: 10/16/2021] [Accepted: 12/07/2021] [Indexed: 11/04/2022]
Abstract
Chronic exposure to low doses of anthropogenic chemicals in the environment continues to be a major health issue. Due to concerns about the effects in humans and wildlife, use of persistent organic pollutants, such as dichlorodiphenyltrichloroethane (DDT), is prohibited. However, their ubiquitous nature and persistence allows them to remain in the environment at low levels for decades. Dichlorodiphenyldichloroethylene (DDE) is the most persistent metabolite of DDT and has been shown to cause hepatotoxicity, nephrotoxicity, hormonal disorders, and induce oxidative stress in many organisms. Although the effects of acute exposure to DDT and its metabolite DDE have been extensively studied, the chronic effects of sub-lethal DDE exposure at levels comparable to those found in the environment have not been well documented. Long-Evans male rats were used to determine the effect of relatively chronic and short term DDE (doses ranged from 0.001 to 100 μg/L) exposure on endocrine function and oxidative stress at different developmental time points. We found that circulating serum testosterone (T) levels were significantly decreased and T secretion in testicular explants were significantly influenced in a dose dependent manner in both pre-pubertal and pubertal male rats after DDE exposure, with pubertal rats being the most affected contrary to our original prediction. Additionally, exposure to DDE increased expression of protein oxidation indicating a possible increase in cellular damage caused by oxidative stress. This study suggests that chronic exposures to environmentally relevant levels of DDE affected testicular function and decreased T secretion with implications for reproductive capacity.
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Affiliation(s)
- Erica M Molina
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
| | - Andreas N Kavazis
- School of Kinesiology, Auburn University, 287 Kinesiology Building, 301 Wire Road, Auburn, AL 36849, USA.
| | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, 331 Funchess Hall, 350 South College St, Auburn, AL 36849, USA.
| | - Benson T Akingbemi
- Department of Anatomy, Physiology and Pharmacology, Auburn University, 1130 Wire Road, Auburn, AL 36849, USA.
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Zhu W, Zheng H, Liu J, Cai J, Wang G, Li Y, Shen H, Yang J, Wang X, Wu J, Nie J. The correlation between chronic exposure to particulate matter and spontaneous abortion: A meta-analysis. Chemosphere 2022; 286:131802. [PMID: 34426134 DOI: 10.1016/j.chemosphere.2021.131802] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 05/04/2021] [Revised: 07/23/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Spontaneous abortion (SAB) brings serious physical and psychological sequelae to women and their families. Though a growing body of individual studies have suggested the possible linkage between chronic particulate matter (PM) exposure and risks of SAB, the provided results were rather contradictory. We therefore performed an evidence-based meta-analysis. METHODS We systematically searched the PubMed, EMBASE and Web of Science databases for available studies published before February 1, 2021 which reported associations between PM exposure and SAB. Corresponding models were applied to combine relative risks (RRs) and their confidence intervals (CIs) from eligible studies according to heterogeneity test. The GRADEpro app was used to evaluate the certainty of evidence. Sensitivity analyses and a publication bias assessment were also utilized to determine the stability of results. RESULTS Of the initial 2358 citations, 6 papers examining the chronic effects of PM exposure were deemed eligible and a total population of approximately 723,000 was observed. Pooled RR for SAB risks associated with a 10 μg/m3 increase in fine particulate matter (PM2.5) and particulate matter ≤ 10 μm in aerodynamic diameter (PM10) were 1.20 (95%CI: 1.01-1.40) and 1.09 (95%CI: 1.02-1.15), respectively. The GRADE results of PM2.5 and PM10 were both categorized as "moderate" certainty evidence. CONCLUSION Our findings revealed a significant increase of SAB hazards related with maternal PM exposure, and this study may therefore provide new evidence for personal protection to improve reproductive health.
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Affiliation(s)
- Wentao Zhu
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Huiqiu Zheng
- Department of Child and Adolescent Health and Health Education, School of Public Health, Inner Mongolia Medical University, Hohhot, 010110, Inner Mongolia, China
| | - Jieyu Liu
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Jiajie Cai
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Gechao Wang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Yi Li
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Haochong Shen
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Jing Yang
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Baotou, 014040, Inner Mongolia, China
| | - Xuemei Wang
- Department of Health Statistics, School of Public Health, Inner Mongolia Medical University, Hohhot, 010110, Inner Mongolia, China
| | - Jing Wu
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China.
| | - Jihua Nie
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, 215123, Jiangsu, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China.
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Su H, Yuan P, Lei H, Zhang L, Deng D, Zhang L, Chen X. Long-term chronic exposure to di-(2-ethylhexyl)-phthalate induces obesity via disruption of host lipid metabolism and gut microbiota in mice. Chemosphere 2022; 287:132414. [PMID: 34600010 DOI: 10.1016/j.chemosphere.2021.132414] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 08/06/2021] [Revised: 09/21/2021] [Accepted: 09/28/2021] [Indexed: 05/15/2023]
Abstract
BACKGROUND Numerous epidemiological findings have shown that di-(2-ethylhexyl)-phthalate (DEHP), one of industrial plasticizers with endocrine-disrupting properties, positively contributes to high incidence of obesity. However, potential pathogenesis of dietary DEHP exposure-induced obesity remains largely unknown. METHODS Chronic DEHP exposure at different doses (0.05 and 5 mg/kg body weight) to mice had been continuously lasted for 14 weeks through the diet. A combination of targeted quantitative metabolomics (LC/GC-MS) with global 1H NMR-based metabolic profiling to explore the effects of dietary DEHP exposure with different doses on host lipid metabolism of mice. Metagenomics (16S rRNA gene sequencing) was also employed to examine the alterations of gut microbiota composition in the cecal contents of mice after dietary DEHP exposure. RESULTS Dietary exposure to DEHP at both doses induced weight gain and hepatic lipogenesis of mice by promoting the uptake of fatty acids and disrupting phospholipids and choline metabolism. Dietary DEHP exposure altered the gut microbiota community with disruption of intestinal morphology and reduction of Firmicutes to Bacteroidetes ratio in the cecal contents of mice. Furthermore, DEHP exposure activated gut microbiota fermentation process producing excess short chain fatty acids of mice. CONCLUSION These findings provide systematic evidence that long-term chronic DEHP exposure induces obesity through disruption of host lipid metabolism and gut microbiota in mice, which not only confirm the epidemiological results, but also expand our understanding of metabolic diseases caused by environmental pollutants exposure.
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Affiliation(s)
- Henghai Su
- Department of Pharmacy, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Peihong Yuan
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China
| | - Hehua Lei
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China
| | - Li Zhang
- Department of Pharmacy, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Dazhi Deng
- Department of Pharmacy, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan, 430071, China.
| | - Xiaoyu Chen
- Department of Pharmacy, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China.
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50
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Pero-Gascon R, Hemeryck LY, Poma G, Falony G, Nawrot TS, Raes J, Vanhaecke L, De Boevre M, Covaci A, De Saeger S. FLEXiGUT: Rationale for exposomics associations with chronic low-grade gut inflammation. Environ Int 2022; 158:106906. [PMID: 34607040 DOI: 10.1016/j.envint.2021.106906] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 06/30/2021] [Revised: 09/03/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
FLEXiGUT is the first large-scale exposomics study focused on chronic low-grade inflammation. It aims to characterize human life course environmental exposure to assess and validate its impact on gut inflammation and related biological processes and diseases. The cumulative influences of environmental and food contaminants throughout the lifespan on certain biological responses related to chronic gut inflammation will be investigated in two Flemish prospective cohorts, namely the "ENVIRONAGE birth cohort", which provides follow-up from gestation to early childhood, and the "Flemish Gut Flora Project longitudinal cohort", a cohort of adults. The exposome will be characterised through biomonitoring of legacy and emerging contaminants, mycotoxins and markers of air pollution, by analysing the available metadata on nutrition, location and activity, and by applying state-of-the-art -omics techniques, including metagenomics, metabolomics and DNA adductomics, as well as the assessment of telomere length and measurement of inflammatory markers, to encompass both exposure and effect. Associations between exposures and health outcomes will be uncovered using an integrated -omics data analysis framework comprising data exploration, pre-processing, dimensionality reduction and data mining, combined with machine learning-based pathway analysis approaches. This is expected to lead to a more profound insight in mechanisms underlying disease progression (e.g. metabolic disorders, food allergies, gastrointestinal cancers) and/or accelerated biological ageing.
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Affiliation(s)
- Roger Pero-Gascon
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium.
| | - Lieselot Y Hemeryck
- Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Giulia Poma
- Toxicological Centre, University of Antwerp, 2610 Wilrijk, Belgium
| | - Gwen Falony
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, 3000 Leuven, Belgium; Center for Microbiology, VIB, 3000 Leuven, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium; Department of Public Health and Primary Care, KU Leuven, 3000 Leuven, Belgium
| | - Jeroen Raes
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, 3000 Leuven, Belgium; Center for Microbiology, VIB, 3000 Leuven, Belgium
| | - Lynn Vanhaecke
- Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Marthe De Boevre
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium
| | - Adrian Covaci
- Toxicological Centre, University of Antwerp, 2610 Wilrijk, Belgium
| | - Sarah De Saeger
- Centre of Excellence in Mycotoxicology and Public Health, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium.
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