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Hadrup N, Sørli JB, Jenssen BM, Vogel U, Sharma AK. Toxicity and biokinetics following pulmonary exposure to aluminium (aluminum): A review. Toxicology 2024; 506:153874. [PMID: 38955312 DOI: 10.1016/j.tox.2024.153874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/17/2024] [Accepted: 06/26/2024] [Indexed: 07/04/2024]
Abstract
During the manufacture and use of aluminium (aluminum), inhalation exposure may occur. We reviewed the pulmonary toxicity of this metal including its toxicokinetics. The normal serum/plasma level based on 17 studies was 5.7 ± 7.7µg Al/L (mean ± SD). The normal urine level based on 15 studies was 7.7 ± 5.3µg/L. Bodily fluid and tissue levels during occupational exposure are also provided, and the urine level was increased in aluminium welders (43 ± 33µg/L) based on 7 studies. Some studies demonstrated that aluminium from occupational exposure can remain in the body for years. Excretion pathways include urine and faeces. Toxicity studies were mostly on aluminium flakes, aluminium oxide and aluminium chlorohydrate as well as on mixed exposure, e.g. in aluminium smelters. Endpoints affected by pulmonary aluminium exposure include body weight, lung function, lung fibrosis, pulmonary inflammation and neurotoxicity. In men exposed to aluminium oxide particles (3.2µm) for two hours, lowest observed adverse effect concentration (LOAEC) was 4mg Al2O3/m3 (= 2.1mg Al/m3), based on increased neutrophils in sputum. With the note that a similar but not statistically significant increase was seen during control exposure. In animal studies LOAECs start at 0.3mg Al/m3. In intratracheal instillation studies, all done with aluminium oxide and mainly nanomaterials, lowest observed adverse effect levels (LOAELs) started at 1.3mg Al/kg body weight (bw) (except one study with a LOAEL of ~0.1mg Al/kg bw). The collected data provide information regarding hazard identification and characterisation of pulmonary exposure to aluminium.
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Affiliation(s)
- Niels Hadrup
- National Research Centre for the Working Environment, 105 Lersø Parkallé, Copenhagen Ø, Denmark; Research Group for Risk-Benefit, National Food Institute, Technical University of Denmark; Department of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
| | - Jorid B Sørli
- National Research Centre for the Working Environment, 105 Lersø Parkallé, Copenhagen Ø, Denmark.
| | - Bjørn M Jenssen
- Department of Biology, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
| | - Ulla Vogel
- National Research Centre for the Working Environment, 105 Lersø Parkallé, Copenhagen Ø, Denmark; National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.
| | - Anoop K Sharma
- Division for Risk Assessment and Nutrition, Group for Chemical Risk Assessment and GMO, National Food Institute, Technical University of Denmark, Kemitorvet, 201, 031, 2800 Kgs. Lyngby, Denmark.
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Lim JO, Kim WI, Pak SW, Lee SJ, Park SH, Shin IS, Kim JC. Toll-like receptor 4 is a key regulator of asthma exacerbation caused by aluminum oxide nanoparticles via regulation of NF-κB phosphorylation. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130884. [PMID: 36736217 DOI: 10.1016/j.jhazmat.2023.130884] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Aluminum oxide nanoparticles (Al2O3 NPs) have recently been reported to cause an inflammatory response in the lungs, and studies are being conducted on their adverse effects, especially in patients with underlying lung diseases such as asthma. However, the underlying mechanism of asthma aggravation caused by Al2O3 NPs remains unclear. This study investigated whether Al2O3 NPs exacerbate ovalbumin (OVA)-induced asthma and focused on the correlation between toll-like receptor 4 (TLR4) signaling and Al2O3 NP-induced asthma exacerbation. Al2O3 NP exposure in asthmatic mice resulted in increased inflammatory cell counts in the lungs, airway hyperresponsiveness, and increased levels of inflammatory cytokines compared with only OVA-induced mice, and excessive secretion of mucus was observed in the airways. Moreover, Al2O3 NP exposure in OVA-induced mice increased the expression levels of TLR4, phospho-nuclear transcription factor-kappa B (p-NFκB), myeloid differentiation factor 88 (MyD88), and phospho-NF kappa B inhibitor alpha (p-IκBα). Furthermore, in the lungs of TLR4 knockout mice exposed to Al2O3 NPs and in a human airway epithelial cell line with down regulated TLR4, the expression levels of MyD88, p-NFκB, and p-IκBα were decreased, and asthma-related allergic responses were reduced. Therefore, we demonstrated that TLR4 is important for aggravation of asthma induced by Al2O3 NPs, and this study provides useful information regarding as yet undiscovered novel target signaling.
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Affiliation(s)
- Je-Oh Lim
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea; Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju 58245, Republic of Korea
| | - Woong-Il Kim
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - So-Won Pak
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Se-Jin Lee
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sung-Hyeuk Park
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - In-Sik Shin
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju 61186, Republic of Korea.
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Bourgois A, Saurat D, De Araujo S, Boyard A, Guitard N, Renault S, Fargeau F, Frederic C, Peyret E, Flahaut E, Servonnet A, Favier AL, Lacroix G, François S, Dekali S. Nose-only inhalations of high-dose alumina nanoparticles/hydrogen chloride gas mixtures induce strong pulmonary pro-inflammatory response: a pilot study. Inhal Toxicol 2021; 33:308-324. [PMID: 34772293 DOI: 10.1080/08958378.2021.1996492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Solid composite propellants combustion, in aerospace and defense fields, can lead to complex aerosols emission containing high concentrations of alumina nanoparticles (Al2O3 NPs) and hydrogen chloride gas (HClg). Exposure to these mixtures by inhalation is thus possible but literature data toward their pulmonary toxicity are missing. To specify hazards resulting from these combustion aerosols, a pilot study was implemented. MATERIALS AND METHODS Male Wistar rats were nose-only exposed to Al2O3 NPs (primary size 13 nm, 10 g/L suspension leading to 20.0-22.1 mg/m3 aerosol) and/or to HClg aerosols (5 ppm target concentration) following two exposure scenarios (single exposures (SE) or repeated exposures (RE)). Bronchoalveolar lavage fluids (BALF) content and lungs histopathology were analyzed 24 h after exposures. RESULTS Repeated co-exposures increased total proteins and LDH concentrations in BALF indicating alveolar-capillary barrier permeabilization and cytolysis. Early pulmonary inflammation was induced after RE to Al2O3 NPs ± HClg resulting in PMN, TNF-α, IL-1β, and GRO/KC increases in BALF. Both exposure scenarios resulted in pulmonary histopathological lesions (vascular congestions, bronchial pre-exfoliations, vascular and interalveolar septum edemas). Lung oxidative damages were observed in situ following SE. CONCLUSION Observed biological effects are dependent on both aerosol content and exposure scenario. Results showed an important pro-inflammatory effect of Al2O3 NPs/HClg mixtures on the lungs of rat 24 h after exposure. This pilot study raises concerns toward potential long-term pulmonary toxicity of combustion aerosols and highlights the importance for further studies to be led in order to define dose limitations and exposure thresholds for risk management at the work place.
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Affiliation(s)
- Alexandra Bourgois
- Département EBR, Unité Risques Technologiques Emergents, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Dominique Saurat
- Département EBR, Unité Risques Technologiques Emergents, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Suzanne De Araujo
- Département EBR, Unité Risques Technologiques Emergents, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Alexandre Boyard
- Département EBR, Unité Risques Technologiques Emergents, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Nathalie Guitard
- Département EBR, Unité Radiobiologie, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Sylvie Renault
- Département Plateformes et Recherche Technologique, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Francisca Fargeau
- Département Plateformes et Recherche Technologique, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Christine Frederic
- Département Plateformes et Recherche Technologique, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Emmanuel Peyret
- Unité de toxicologie expérimentale, Institut National de l'Environnement Industriel et des RISques (INERIS), Verneuil-en-Halatte, France
| | - Emmanuel Flahaut
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, UMR CNRS-UPS-INP No. 5085, Université Toulouse 3 Paul Sabatier, Toulouse cedex 9, France
| | - Aurélie Servonnet
- Département Plateformes et Recherche Technologique, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Anne-Laure Favier
- Département Plateformes et Recherche Technologique, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Ghislaine Lacroix
- Unité de toxicologie expérimentale, Institut National de l'Environnement Industriel et des RISques (INERIS), Verneuil-en-Halatte, France
| | - Sabine François
- Département EBR, Unité Radiobiologie, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
| | - Samir Dekali
- Département EBR, Unité Risques Technologiques Emergents, Institut de Recherche Biomédicale des Armées (IRBA), Brétigny-sur-Orge Cedex, France
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Mandler WK, Qi C, Orandle MS, Sarkisian K, Mercer RR, Stefaniak AB, Knepp AK, Bowers LN, Battelli LA, Shaffer J, Friend SA, Qian Y, Sisler JD. Mouse pulmonary response to dust from sawing Corian®, a solid-surface composite material. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:645-663. [PMID: 31290376 DOI: 10.1080/15287394.2019.1640816] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Corian®, a solid-surface composite (SSC), is composed of alumina trihydrate and acrylic polymer. The aim of the present study was to examine the pulmonary toxicity attributed to exposure to SSC sawing dust. Male mice were exposed to either phosphate buffer saline (PBS, control), 62.5, 125, 250, 500, or 1000 µg of SSC dust, or 1000 µg silica (positive control) via oropharyngeal aspiration. Body weights were measured for the duration of the study. Bronchoalveolar lavage fluid (BALF) and tissues were collected for analysis at 1 and 14 days post-exposure. Enhanced-darkfield and histopathologic analysis was performed to assess particle distribution and inflammatory responses. BALF cells and inflammatory cytokines were measured. The geometric mean diameter of SSC sawing dust following suspension in PBS was 1.25 µm. BALF analysis indicated that lactate dehydrogenase (LDH) activity, inflammatory cells, and pro-inflammatory cytokines were significantly elevated in the 500 and 1000 µg SSC exposure groups at days 1 and 14, suggesting that exposure to these concentrations of SSC induced inflammatory responses, in some cases to a greater degree than the silica positive control. Histopathology indicated the presence of acute alveolitis at all doses at day 1, which was largely resolved by day 14. Alveolar particle deposition and granulomatous mass formation were observed in all exposure groups at day 14. The SSC particles were poorly cleared, with 81% remaining at the end of the observation period. These findings demonstrate that SSC sawing dust exposure induces pulmonary inflammation and damage that warrants further investigation. Abbreviations: ANOVA: Analysis of Variance; ATH: Alumina Trihydrate; BALF: Bronchoalveolar Lavage Fluid; Dpg: Geometric Mean Diameter; FE-SEM: Field Emission Scanning Electron Microscopy; IACUC: Institutional Animal Care and Use Committee; IFN-γ: Interferon Gamma; IL-1 Β: Interleukin-1 Beta; IL-10: Interleukin-10; IL-12: Interleukin-12; IL-2: Interleukin-2; IL-4: Interleukin-4; IL-5: Interleukin-5; IL-6: Interleukin-6; KC/GRO: Neutrophil-Activating Protein 3; MMAD: Mass Median Aerodynamic Diameter; PBS: Phosphate-Buffered Saline; PEL: Permissible Exposure Limit; PM: Polymorphonuclear Leukocytes; PNOR: Particles Not Otherwise Regulated; SEM/EDX: Scanning Electron Microscope/Energy-Dispersive X-Ray; SSA: Specific Surface Area; SSC: Solid Surface Composite; TNFα: Tumor Necrosis Factor-Alpha; VOC: Volatile Organic Compounds; σg: Geometric Standard Deviation.
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Affiliation(s)
- W Kyle Mandler
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Chaolong Qi
- b Division of Applied Research, National Institute for Occupational Safety and Health , Cincinnati , OH , USA
| | - Marlene S Orandle
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Khachatur Sarkisian
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Robert R Mercer
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Aleksandr B Stefaniak
- c Respiratory Health Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Alycia K Knepp
- c Respiratory Health Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Lauren N Bowers
- c Respiratory Health Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Lori A Battelli
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Justine Shaffer
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Sherri A Friend
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Yong Qian
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Jennifer D Sisler
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
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5
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Wang X, Gong J, Gui Z, Hu T, Xu X. Halloysite nanotubes-induced Al accumulation and oxidative damage in liver of mice after 30-day repeated oral administration. ENVIRONMENTAL TOXICOLOGY 2018; 33:623-630. [PMID: 29457689 DOI: 10.1002/tox.22543] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 01/22/2018] [Accepted: 01/27/2018] [Indexed: 06/08/2023]
Abstract
Halloysite (Al2 Si2 O5 (OH)4 ·nH2 O) nanotubes (HNTs) are natural clay materials and widely applied in many fields due to their natural hollow tubular structures. Many in vitro studies indicate that HNTs exhibit a high level of biocompatibility, however the in vivo toxicity of HNTs remains unclear. The objective of this study was to assess the hepatic toxicity of the purified HNTs in mice via oral route. The purified HNTs were orally administered to mice at 5, 50, and 300 mg/kg body weight (BW) every day for 30 days. Oral administration of HNTs stimulated the growth of the mice at the low dose (5 mg/kg BW) with no liver toxicity, but inhibited the growth of the mice at the middle (50 mg/kg BW) and high (300 mg/kg BW) doses. In addition, oral administration of HNTs at the high dose caused Al accumulation in the liver but had no marked effect on the Si content in the organ. The Al accumulation caused significant oxidative stress in the liver, which induced hepatic dysfunction and histopathologic changes. These findings demonstrated that Al accumulation-induced oxidative stress played an important role in the oral HNTs-caused liver injury.
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Affiliation(s)
- Xue Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Jiachun Gong
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Zongxiang Gui
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Tingting Hu
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Xiaolong Xu
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People's Republic of China
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Wang X, Gong J, Rong R, Gui Z, Hu T, Xu X. Halloysite Nanotubes-Induced Al Accumulation and Fibrotic Response in Lung of Mice after 30-Day Repeated Oral Administration. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2925-2933. [PMID: 29470912 DOI: 10.1021/acs.jafc.7b04615] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Natural halloysite (Al2Si2O5(OH)4· nH2O) nanotubes (HNT) are clay materials with hollow tubular structure and are widely applied in many fields. Many in vitro studies indicate that HNTs exhibit a high level of biocompatibility; however, the in vivo toxicity of HNTs remains unclear. In this study, the biodistribution and pulmonary toxicity of the purified HNTs in mice were investigated after intragastric administration for 30 days. HNTs have high stability in biological conditions. Oral administration of HNTs caused significant Al accumulation predominantly in the lung with relative slight effects on Si biodistribution. Oral administration of HNTs stimulated the growth of the mice at low dose (5 mg/kg BW) with no pulmonary toxicity but inhibited the mouse growth and resulted in oxidative stress and inflammation in lung at high dose (50 mg/kg BW). In addition, oral HNTs at high dose could be absorbed from the gastrointestinal tract and deposited in lung and could also induce pulmonary fibrosis.
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Affiliation(s)
- Xue Wang
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Jiachun Gong
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Rui Rong
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Zongxiang Gui
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Tingting Hu
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
| | - Xiaolong Xu
- Department of Chemistry , University of Science and Technology of China , Hefei , 230026 , P. R. China
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Li X, Yang H, Wu S, Meng Q, Sun H, Lu R, Cui J, Zheng Y, Chen W, Zhang R, Aschner M, Chen R. Suppression of PTPN6 exacerbates aluminum oxide nanoparticle-induced COPD-like lesions in mice through activation of STAT pathway. Part Fibre Toxicol 2017; 14:53. [PMID: 29233151 PMCID: PMC5728016 DOI: 10.1186/s12989-017-0234-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/28/2017] [Indexed: 02/06/2023] Open
Abstract
Background Inhaled nanoparticles can deposit in the deep lung where they interact with pulmonary cells. Despite numerous studies on pulmonary nanotoxicity, detailed molecular mechanisms of specific nanomaterial-induced lung injury have yet to be identified. Results Using whole-body dynamic inhalation model, we studied the interactions between aluminum oxide nanoparticles (Al2O3 NPs) and the pulmonary system in vivo. We found that seven-day-exposure to Al2O3 NPs resulted in emphysema and small airway remodeling in murine lungs, accompanied by enhanced inflammation and apoptosis. Al2O3 NPs exposure led to suppression of PTPN6 and phosphorylation of STAT3, culminating in increased expression of the apoptotic marker PDCD4. Rescue of PTPN6 expression or application of a STAT3 inhibitor, effectively protected murine lungs from inflammation and apoptosis, as well as, in part, from the induction of chronic obstructive pulmonary disease (COPD)-like effects. Conclusion In summary, our studies show that inhibition of PTPN6 plays a critical role in Al2O3 NPs-induced COPD-like lesions. Electronic supplementary material The online version of this article (10.1186/s12989-017-0234-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Hongbao Yang
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Shenshen Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Qingtao Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Hao Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Runze Lu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Jian Cui
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China. .,Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China.
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Hendriks HS, Westerink RH. Neurotoxicity and risk assessment of brominated and alternative flame retardants. Neurotoxicol Teratol 2015; 52:248-69. [DOI: 10.1016/j.ntt.2015.09.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/01/2015] [Accepted: 09/01/2015] [Indexed: 11/29/2022]
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Normando VMF, Mazzoli-Rocha F, Moreira DKM, Barcellos BC, Picanço-Diniz DW, Zin WA. Regular exercise training attenuates pulmonary inflammatory responses to inhaled alumina refinery dust in mice. Respir Physiol Neurobiol 2013; 186:53-60. [PMID: 23313853 DOI: 10.1016/j.resp.2012.12.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 11/27/2012] [Accepted: 12/03/2012] [Indexed: 11/30/2022]
Abstract
Exposure to alumina dust has been recently associated with impaired lung mechanics and inflammation. We aimed at evaluating if moderate exercise training prevents these outcomes. Twenty-three female BALB/c mice (25-30g) were randomly divided in two main groups: control (C) and exercise (E), which were submitted, or not, to 15min of swimming, 5 days/week during 4 weeks. Then, the animals were exposed for 1h to either saline solution (CS or ES) or to a suspension of 8mg/m(3) of alumina dust (CA or EA). Twenty-four hours later pulmonary mechanics was determined by the end-inflation occlusion method. Left lungs were prepared for histology and right lungs for TGF-β determination. Static elastance increased after alumina dust exposure independently of swimming. In CA group the viscoelastic component of elastance, the viscoelastic/inhomogeneous pressure, the polymorphonuclear amount, the fraction area of alveolar collapse and TGF-β increased. Thus, exercise training may mitigate the pro-inflammatory response to inhaled aluminum refinery dust.
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Mani U, Prasad AK, Suresh Kumar V, Lal K, Kanojia RK, Chaudhari BP, Murthy RC. Effect of fly ash inhalation on biochemical and histomorphological changes in rat liver. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2007; 68:126-33. [PMID: 17166587 DOI: 10.1016/j.ecoenv.2006.10.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2005] [Revised: 09/11/2006] [Accepted: 10/21/2006] [Indexed: 05/13/2023]
Abstract
The effect of fly ash inhalation (4h daily, 5 days a week) for 28 days on the deposition of metal ions and histopathological changes in the liver and serum clinical enzymes has been studied. The results showed an increase in the concentration of metals such as cadmium (Cd), chromium (Cr), copper (Cu), manganese (Mn), and lead (Pb) in the tissues of exposed rats. The level of metals varied from metal to metal and from organ to organ. Level of serum enzymes such as serum glutamate oxaloacetate transaminase, serum glutamate pyruvate transaminase, and alkaline phosphatase were increased in fly ash exposed rats using whole body inhalation exposure as compared to sham controls. Histopathological studies of rat liver exposed to fly ash revealed infiltration of mononuclear cells in and around the portal triads, which seems to be laden with fly ash particles. Hepatocytes showed necrotic changes such as pyknotic nuclei, karyorrhexis, and karyolytic. These changes were more towards the centrolobular areas than the midzonal and periportal areas. These findings demonstrate that the toxic metals of inhaled fly ash in rats may get translocated into extrapulmonary organs, become deposited and hence may manifest their toxic effects on different tissues.
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Affiliation(s)
- U Mani
- Inhalation Toxicology Laboratory, Industrial Toxicology Research Centre, PO Box 80, M. G. Marg, Lucknow 226 001, India.
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Abstract
Aluminum is the most widely distributed metal in the environment and is extensively used in modern daily life. Aluminum enters into the body from the environment and from diet and medication. However, there is no known physiological role for aluminum within the body and hence this metal may produce adverse physiological effects. The impact of aluminum on neural tissues is well reported but studies on extraneural tissues are not well summarized. In this review, the impacts of aluminum on humans and its impact on major physiological systems are summarized and discussed. The neuropathologies associated with high brain aluminum levels, including structural, biochemical, and neurobehavioral changes, have been summarized. In addition, the impact of aluminum on the musculoskeletal system, respiratory system, cardiovascular system, hepatobiliary system, endocrine system, urinary system, and reproductive system are discussed.
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Affiliation(s)
- Prasunpriya Nayak
- Department of Physiology, Sikkim Manipal Institute of Medical Sciences, 5th Mile, Tadong, Gangtok, 737102, Sikkim, India
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