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Ścibior A, Llopis J, Dobrakowski PP, Męcik-Kronenberg T. CNS-Related Effects Caused by Vanadium at Realistic Exposure Levels in Humans: A Comprehensive Overview Supplemented with Selected Animal Studies. Int J Mol Sci 2023; 24:ijms24109004. [PMID: 37240351 DOI: 10.3390/ijms24109004] [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: 04/27/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Neurodegenerative disorders, which are currently incurable diseases of the nervous system, are a constantly growing social concern. They are progressive and lead to gradual degeneration and/or death of nerve cells, resulting in cognitive deterioration or impaired motor functions. New therapies that would ensure better treatment results and contribute to a significant slowdown in the progression of neurodegenerative syndromes are constantly being sought. Vanadium (V), which is an element with a wide range of impacts on the mammalian organism, is at the forefront among the different metals studied for their potential therapeutic use. On the other hand, it is a well-known environmental and occupational pollutant and can exert adverse effects on human health. As a strong pro-oxidant, it can generate oxidative stress involved in neurodegeneration. Although the detrimental effects of vanadium on the CNS are relatively well recognized, the role of this metal in the pathophysiology of various neurological disorders, at realistic exposure levels in humans, is not yet well characterized. Hence, the main goal of this review is to summarize data on the neurological side effects/neurobehavioral alterations in humans, in relation to vanadium exposure, with the focus on the levels of this metal in biological fluids/brain tissues of subjects with some neurodegenerative syndromes. Data collected in the present review indicate that vanadium cannot be excluded as a factor playing a pivotal role in the etiopathogenesis of neurodegenerative illnesses, and point to the need for additional extensive epidemiological studies that will provide more evidence supporting the relationship between vanadium exposure and neurodegeneration in humans. Simultaneously, the reviewed data, clearly showing the environmental impact of vanadium on health, suggest that more attention should be paid to chronic diseases related to vanadium and to the assessment of the dose-response relationship.
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Affiliation(s)
- Agnieszka Ścibior
- Laboratory of Oxidative Stress, Department of Biomedicine and Environmental Research, Institute of Biological Sciences, Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynów St. 1J, 20-708 Lublin, Poland
| | - Juan Llopis
- Department of Physiology, Institute of Nutrition and Food Technology ''José Mataix", Biomedical Research Centre, University of Granada, 18100 Armilla, Spain
- Sport and Health Research Centre, University of Granada, 18016 Granada, Spain
| | - Paweł Piotr Dobrakowski
- Psychology Institute, Humanitas University in Sosnowiec, Jana Kilińskiego St. 43, 41-200 Sosnowiec, Poland
| | - Tomasz Męcik-Kronenberg
- Department of Pathomorphology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 3 Maja St. 13, 41-800 Zabrze, Poland
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2
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Sharma A, Muresanu DF, Tian ZR, Nozari A, Lafuente JV, Buzoianu AD, Sjöquist PO, Feng L, Wiklund L, Sharma HS. Co-Administration of Nanowired Monoclonal Antibodies to Inducible Nitric Oxide Synthase and Tumor Necrosis Factor Alpha Together with Antioxidant H-290/51 Reduces SiO 2 Nanoparticles-Induced Exacerbation of Pathophysiology of Spinal Cord Trauma. ADVANCES IN NEUROBIOLOGY 2023; 32:195-229. [PMID: 37480462 DOI: 10.1007/978-3-031-32997-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
Military personnel are often exposed to silica dust during combat operations across the globe. Exposure to silica dust in US military or service personnel could cause Desert Strom Pneumonitis also referred to as Al Eskan disease causing several organs damage and precipitate autoimmune dysfunction. However, the effects of microfine particles of sand inhalation-induced brain damage on the pathophysiology of traumatic brain or spinal cord injury are not explored. Previously intoxication of silica nanoparticles (50-60 nm size) is shown to exacerbates spinal cord injury induces blood-spinal cord barrier breakdown, edema formation and cellular changes. However, the mechanism of silica nanoparticles-induced cord pathology is still not well known. Spinal cord injury is well known to alter serotonin (5-hydroxytryptamine) metabolism and induce oxidative stress including upregulation of nitric oxide synthase and tumor necrosis factor alpha. This suggests that these agents are involved in the pathophysiology of spinal cord injury. In this review, we examined the effects of combined nanowired delivery of monoclonal antibodies to neuronal nitric oxide synthase (nNOS) together with tumor necrosis factor alpha (TNF-α) antibodies and a potent antioxidant H-290/51 to induce neuroprotection in spinal cord injury associated with silica nanoparticles intoxication. Our results for the first time show that co-administration of nanowired delivery of antibodies to nNOS and TNF-α with H-290/51 significantly attenuated silica nanoparticles-induced exacerbation of spinal cord pathology, not reported earlier.
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Affiliation(s)
- Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Dafin F Muresanu
- Department Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania
- "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Z Ryan Tian
- Department Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Ala Nozari
- Anesthesiology & Intensive Care, Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - José Vicente Lafuente
- LaNCE, Department Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Anca D Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Per-Ove Sjöquist
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lianyuan Feng
- Department of Neurology, Bethune International Peace Hospital, Zhongshan, Hebei Province, China
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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Biological effects of inhaled hydraulic fracturing sand dust VII. Neuroinflammation and altered synaptic protein expression. Toxicol Appl Pharmacol 2020; 409:115300. [PMID: 33141058 DOI: 10.1016/j.taap.2020.115300] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/16/2020] [Accepted: 10/18/2020] [Indexed: 12/26/2022]
Abstract
Hydraulic fracturing (fracking) is a process used to recover oil and gas from shale rock formation during unconventional drilling. Pressurized liquids containing water and sand (proppant) are used to fracture the oil- and natural gas-laden rock. The transportation and handling of proppant at well sites generate dust aerosols; thus, there is concern of worker exposure to such fracking sand dusts (FSD) by inhalation. FSD are generally composed of respirable crystalline silica and other minerals native to the geological source of the proppant material. Field investigations by NIOSH suggest that the levels of respirable crystalline silica at well sites can exceed the permissible exposure limits. Thus, from an occupational safety perspective, it is important to evaluate the potential toxicological effects of FSD, including any neurological risks. Here, we report that acute inhalation exposure of rats to one FSD, i.e., FSD 8, elicited neuroinflammation, altered the expression of blood brain barrier-related markers, and caused glial changes in the olfactory bulb, hippocampus and cerebellum. An intriguing observation was the persistent reduction of synaptophysin 1 and synaptotagmin 1 proteins in the cerebellum, indicative of synaptic disruption and/or injury. While our initial hazard identification studies suggest a likely neural risk, more research is necessary to determine if such molecular aberrations will progressively culminate in neuropathology/neurodegeneration leading to behavioral and/or functional deficits.
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Zychowski KE, Wheeler A, Sanchez B, Harmon M, Steadman Tyler CR, Herbert G, Lucas SN, Ali AM, Avasarala S, Kunda N, Robinson P, Muttil P, Cerrato JM, Bleske B, Smirnova O, Campen MJ. Toxic Effects of Particulate Matter Derived from Dust Samples Near the Dzhidinski Ore Processing Mill, Eastern Siberia, Russia. Cardiovasc Toxicol 2020; 19:401-411. [PMID: 30963444 DOI: 10.1007/s12012-019-09507-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ambient particulate matter (PM) is associated with increased mortality and morbidity, an effect influenced by the metal components of the PM. We characterized five sediment samples obtained near a tungsten-molybdenum ore-processing complex in Zakamensk, Russia for elemental composition and PM toxicity with regard to pulmonary, vascular, and neurological outcomes. Elemental and trace metals analysis of complete sediment and PM10 (the respirable fraction, < 10 µm mass mean aerodynamic diameter) were performed using inductively coupled plasma optical emission spectrometry (ICP-OES) and mass spectrometry (ICP-MS). Sediment samples and PM10 consisted largely of silicon and iron and silicon and sodium, respectively. Trace metals including manganese and uranium in the complete sediment, as well as copper and lead in the PM10 were observed. Notably, metal concentrations were approximately 10 × higher in the PM10 than in the sediment. Exposure to 100 µg of PM10 via oropharyngeal aspiration in C56BL/6 mice resulted in pulmonary inflammation across all groups. In addition, mice exposed to three of the five PM10 samples exhibited impaired endothelial-dependent relaxation, and correlative analysis revealed associations between pulmonary inflammation and levels of lead and cadmium. A tendency for elevated cortical ccl2 and Tnf-α mRNA expression was induced by all samples and significant upregulation was noted following exposure to PM10 samples Z3 and Z4, respectively. Cortical Nqo1 mRNA levels were significantly upregulated in mice exposed to PM10 Z2. In conclusion, pulmonary exposure to PM samples from the Zakamensk region sediments induced varied pulmonary and systemic effects that may be influenced by elemental PM composition. Further investigation is needed to pinpoint putative drivers of neurological outcomes.
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Affiliation(s)
- Katherine E Zychowski
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Abigail Wheeler
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Bethany Sanchez
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Molly Harmon
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | | | - Guy Herbert
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Selita N Lucas
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Abdul-Mehdi Ali
- Department of Civil Engineering, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Sumant Avasarala
- Department of Civil Engineering, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Nitesh Kunda
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Paul Robinson
- Southwest Research and Information Center, Albuquerque, NM, 87196, USA
| | - Pavan Muttil
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA
| | - Jose M Cerrato
- Department of Civil Engineering, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Barry Bleske
- Pharmacy Practice and Administrative Sciences, University of New Mexico-Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Olga Smirnova
- Geological Institute, Siberian Branch, Russian Academy of Sciences, Moscow, Russia
| | - Matthew J Campen
- Department of Pharmaceutical Sciences, University of New Mexico-Health Sciences Center, MSC09 5360, Albuquerque, NM, 87131, USA.
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5
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Keil DE, Buck B, Goossens D, McLaurin B, Murphy L, Leetham-Spencer M, Teng Y, Pollard J, Gerads R, DeWitt JC. Nevada desert dust with heavy metals suppresses IgM antibody production. Toxicol Rep 2018; 5:258-269. [PMID: 29854597 PMCID: PMC5978016 DOI: 10.1016/j.toxrep.2018.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 12/23/2022] Open
Abstract
NDRA emits geogenic dusts that are comprised of a mineral-metal mixture. Exposure to NDRA geogenic dusts suppressed immune function in a mouse model. Similar desert surfaces emit dust in southern Nevada and elsewhere in the world. This study represents a desert environment; dust composition may vary by source.
Systemic health effects from exposure to a complex natural dust containing heavy metals from the Nellis Dunes Recreation Area (NDRA) near Las Vegas, NV, were evaluated. Several toxicological parameters were examined following lung exposure to emissive dust from three geologic sediment types heavily used for recreational off-road activities: yellow sand very rich in arsenic (termed CBN 5); a shallow cover of loose dune sand overlying a gravelly subsoil bordering dune fields (termed CBN 6); and brown claystone and siltstone (termed CBN 7). Adult female B6C3F1 mice were exposed by oropharyngeal administration to these three types of geogenic dusts at 0.01–100 mg of dust/kg of body weight, once per week for four weeks. The median grain sizes were 4.6, 3.1, and 4.4 μm, for CBN 5, 6, and 7, respectively. Each type of dust contained quantifiable amounts of aluminum, vanadium, chromium, manganese, iron, cobalt, copper, zinc, arsenic, strontium, cesium, lead, uranium, and others. Descriptive markers of immunotoxicity, neurotoxicity, hematology, and clinical chemistry parameters were assessed. Notable among all three CBN units was a systemic, dose-responsive decrease in antigen-specific IgM antibody responses. Geogenic dust from CBN 5 produced more than a 70% suppression in IgM responses, establishing a lowest adverse effect level (LOAEL) of 0.01 mg/kg. A suppression in IgM responses and a corresponding increase in serum creatinine determined a LOAEL of 0.01 mg/kg for CBN 6. The LOAEL for CBN 7 was 0.1 mg/kg and also was identified from suppression in IgM responses. These results are of concern given the frequent off-road vehicle traffic and high visitor rates at the NDRA, estimated at 300,000 each year.
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Affiliation(s)
- Deborah E Keil
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, MT, 59717, USA
| | - Brenda Buck
- Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - Dirk Goossens
- Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001 Leuven, Belgium
| | - Brett McLaurin
- Department of Environmental, Geographical, and Geological Sciences, Bloomsburg University of Pennsylvania, Bloomsburg, PA, 17815, USA
| | - Lacey Murphy
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, MT, 59717, USA
| | - Mallory Leetham-Spencer
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, MT, 59717, USA
| | - Yuanxin Teng
- Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - James Pollard
- Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - Russell Gerads
- Brooks Applied Labs, 18804 North Creek Parkway, Bothell, WA, 98011, USA
| | - Jamie C DeWitt
- Department of Pharmacology and Toxicology, East Carolina University, 600 Moye Blvd., Greenville, NC, 27834, USA
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6
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Eggers MJ, Doyle JT, Lefthand MJ, Young SL, Moore-Nall AL, Kindness L, Medicine RO, Ford TE, Dietrich E, Parker AE, Hoover JH, Camper AK. Community Engaged Cumulative Risk Assessment of Exposure to Inorganic Well Water Contaminants, Crow Reservation, Montana. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E76. [PMID: 29304032 PMCID: PMC5800175 DOI: 10.3390/ijerph15010076] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/28/2017] [Accepted: 12/30/2017] [Indexed: 12/19/2022]
Abstract
An estimated 11 million people in the US have home wells with unsafe levels of hazardous metals and nitrate. The national scope of the health risk from consuming this water has not been assessed as home wells are largely unregulated and data on well water treatment and consumption are lacking. Here, we assessed health risks from consumption of contaminated well water on the Crow Reservation by conducting a community-engaged, cumulative risk assessment. Well water testing, surveys and interviews were used to collect data on contaminant concentrations, water treatment methods, well water consumption, and well and septic system protection and maintenance practices. Additive Hazard Index calculations show that the water in more than 39% of wells is unsafe due to uranium, manganese, nitrate, zinc and/or arsenic. Most families' financial resources are limited, and 95% of participants do not employ water treatment technologies. Despite widespread high total dissolved solids, poor taste and odor, 80% of families consume their well water. Lack of environmental health literacy about well water safety, pre-existing health conditions and limited environmental enforcement also contribute to vulnerability. Ensuring access to safe drinking water and providing accompanying education are urgent public health priorities for Crow and other rural US families with low environmental health literacy and limited financial resources.
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Affiliation(s)
- Margaret J Eggers
- Center for Biofilm Engineering, Montana State University, P.O. Box 173980, Bozeman, MT 59717, USA.
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
| | - John T Doyle
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
- Crow Water Quality Project, P.O. Box 370, Little Big Horn College, Crow Agency, MT 59022, USA.
| | - Myra J Lefthand
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
| | - Sara L Young
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
| | - Anita L Moore-Nall
- Department of Earth Sciences, Montana State University, P.O. Box 173480, Bozeman, MT 59717, USA.
| | - Larry Kindness
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
| | - Roberta Other Medicine
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
- Environmental Health Department, Crow/Northern Cheyenne Indian Health Service Hospital,Crow Agency, MT 59022, USA.
| | - Timothy E Ford
- School of Public Health and Health Sciences, University of Massachusetts Amherst, 715 N. Pleasant Street,Amherst, MA 01003, USA.
| | - Eric Dietrich
- Center for Biofilm Engineering, Montana State University, P.O. Box 173980, Bozeman, MT 59717, USA.
| | - Albert E Parker
- Center for Biofilm Engineering, Montana State University, P.O. Box 173980, Bozeman, MT 59717, USA.
- Department of Mathematical Sciences, Montana State University, P.O. Box 173980,Bozeman, MT 59717, USA.
| | - Joseph H Hoover
- Health Sciences Center, MSC09 5360, 1 University of New Mexico, Albuquerque, NM 87131, USA.
| | - Anne K Camper
- Center for Biofilm Engineering, Montana State University, P.O. Box 173980, Bozeman, MT 59717, USA.
- Crow Environmental Health Steering Committee, Little Big Horn College, Crow Agency, MT 59022, USA.
- College of Engineering, Montana State University, P.O. Box 173980, Bozeman, MT 59717, USA.
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DeWitt JC, Buck BJ, Goossens D, Teng Y, Pollard J, McLaurin BT, Gerads R, Keil DE. Health effects following subacute exposure to geogenic dust collected from active drainage surfaces (Nellis Dunes Recreation Area, Las Vegas, NV). Toxicol Rep 2017; 4:19-31. [PMID: 28959621 PMCID: PMC5615102 DOI: 10.1016/j.toxrep.2016.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 11/29/2022] Open
Abstract
The specific health effects of direct inhalation of fine minerogenic dusts generated by natural soil surfaces remain poorly known and relatively little researched. To learn more about this exposure and its contribution to human health effects, we surveyed surface sediment and characterized dust from the Nellis Dunes Recreation Area (NDRA) in Clark County, Nevada, a popular off-road vehicle (ORV) recreational site. Dry drainage systems at NDRA are commonly used as natural trail systems for ORV recreation; these surfaces also are characterized by high concentrations of heavy metals. Geogenic dust with a median diameter of 4.05 μm, collected from drainage surfaces at NDRA contained a total elemental concentration of aluminum (79,651 μg/g), vanadium (100 μg/g), chromium (54 μg/g), manganese (753 μg/g), iron (33,266 μg/g), cobalt (14 μg/g), copper (37 μg/g) zinc (135 μg/g), arsenic (71 μg/g), strontium (666 μg/g), cesium (15 μg/g), lead (34 μg/g), and uranium (54.9 μg/g). Adult female B6C3F1 mice exposed via oropharyngeal aspiration to 0.01–100 mg dust/kg body weight, four times, a week apart, for 28-days, were evaluated for immuno- and neurotoxicological outcomes 24 h after the last exposure. Antigen-specific IgM responses were dose-responsively suppressed at 0.1, 1.0, 10 and 100 mg/kg. Splenic lymphocytic subpopulations, hematological and clinical chemistry parameters were affected. In brain tissue, antibodies against NF-68, and GFAP were not affected, whereas IgM antibodies against MBP were reduced by 26.6% only in the highest dose group. A lowest observed adverse effect level (LOAEL) of 0.1 mg/kg/day and a no observed adverse effect level (NOAEL) of 0.01 mg/kg/day were derived based on the antigen primary IgM responses after subacute exposure to this geogenic dust.
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Affiliation(s)
- Jamie C DeWitt
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, NC 27834, USA
| | - Brenda J Buck
- Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA
| | - Dirk Goossens
- Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA.,Department of Earth and Environmental Sciences, KU, Leuven, Belgium
| | - Yuanxin Teng
- Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA
| | - James Pollard
- Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA
| | - Brett T McLaurin
- Department of Environmental, Geographical, and Geological Sciences, Bloomsburg University of Pennsylvania, Bloomsburg, PA 17815, USA
| | | | - Deborah E Keil
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA
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9
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Park EJ, Lee GH, Yoon C, Kim DW. Comparison of distribution and toxicity following repeated oral dosing of different vanadium oxide nanoparticles in mice. ENVIRONMENTAL RESEARCH 2016; 150:154-165. [PMID: 27288913 DOI: 10.1016/j.envres.2016.05.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/11/2016] [Accepted: 05/19/2016] [Indexed: 06/06/2023]
Abstract
Vanadium is an important ultra-trace element derived from fuel product combustion. With the development of nanotechnology, vanadium oxide nanoparticles (VO NPs) have been considered for application in various fields, thus the possibility of release into the environment and human exposure is also increasing. Considering that verification of bioaccumulation and relevant biological responses are essential for safe application of products, in this study, we aimed to identify the physicochemical properties that determine their health effects by comparing the biological effects and tissue distribution of different types of VO NPs in mice. For this, we prepared five types of VO NPs, commercial (C)-VO2 and -V2O5 NPs and synthetic (S)-VO2, -V2O3, and -V2O5 NPs. While the hydrodynamic diameter of the two types of C-VO NPs was irregular and impossible to measure, those of the three types of S-VO NPs was in the range of 125-170nm. The S- and C-V2O5 NPs showed higher dissolution rates compared to other VO NPs. We orally dosed the five types of VO NPs (70 and 210μg/mouse, approximately 2 and 6mg/kg) to mice for 28 days and compared their biodistribution and toxic effects. We found that S-V2O5 and S-V2O3 NPs more accumulated in tissues compared to other three types of VO NPs, and the accumulated level was in order of heart>liver>kidney>spleen. Additionally, tissue levels of redox reaction-related elements and electrolytes (Na(+), K(+), and Ca(2+)) were most clearly altered in the heart of treated mice. Notably, all S- and C-VO NPs decreased the number of WBCs at the higher dose, while total protein and albumin levels were reduced at the higher dose of S-V2O5 and S-V2O3 NPs. Taken together, we conclude that the biodistribution and toxic effects of VO NPs depend on their dissolution rates and size (surface area). Additionally, we suggest that further studies are needed to clarify effects of VO NPs on functions of the heart and the immune system.
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Affiliation(s)
- Eun-Jung Park
- Myunggok Eye Research Institute, Konyang University, Daejeon 302-718, South Korea.
| | - Gwang-Hee Lee
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-713, South Korea
| | - Cheolho Yoon
- Seoul Center, Korea Basic Science Institute, Seoul 126-16, South Korea
| | - Dong-Wan Kim
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 136-713, South Korea.
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Keil DE, Buck B, Goossens D, Teng Y, Pollard J, McLaurin B, Gerads R, DeWitt J. Health effects from exposure to atmospheric mineral dust near Las Vegas, NV, USA. Toxicol Rep 2016; 3:785-795. [PMID: 28959605 PMCID: PMC5616076 DOI: 10.1016/j.toxrep.2016.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/13/2016] [Accepted: 09/22/2016] [Indexed: 11/25/2022] Open
Abstract
Atmospheric geogenic dust comprised of a mineral-metal mixture is a source of exposure in Clark County, Nevada. Lung exposures over a period of one month to NDRA atmospheric geogenic dust suppressed immune function in a mouse model. Similar geological desert surfaces emit dust in southern Nevada and elsewhere in the world. This study is representative of a desert environment; dust composition may vary by source.
Desert areas are usually characterized by a continuous deposition of fine airborne particles. Over time, this process results in the accumulation of silt and clay on desert surfaces. We evaluated health effects associated with regional atmospheric dust, or geogenic dust, deposited on surfaces in the Nellis Dunes Recreation Area (NDRA) in Clark County, Nevada, a popular off-road vehicle (ORV) recreational site frequented daily by riders, families, and day campers. Because of atmospheric mixing and the mostly regional origin of the accumulated particles, the re-suspended airborne dust is composed of a complex mixture of minerals and metals including aluminum, vanadium, chromium, manganese, iron, cobalt, copper, zinc, arsenic, strontium, cesium, lead, uranium, and others. Geogenic dust with a median diameter of 4.1 μm was administered via oropharyngeal aspiration to female B6C3F1 mice at doses of 0.01 to 100 mg dust/kg body weight, four times, a week apart, for 28-days. Immuno- and neurotoxicological outcomes 24 h following the last exposure were evaluated. Antigen-specific IgM responses were dose-responsively suppressed at 0.1, 1.0, 10 and 100 mg/kg/day. Splenic and thymic lymphocytic subpopulations and natural killer cell activity also were significantly reduced. Antibodies against MBP, NF-68, and GFAP were not affected, while brain CD3+ T cells were decreased in number. A lowest observed adverse effect level (LOAEL) of 0.1 mg/kg/day and a no observed adverse effect level (NOAEL) of 0.01 mg/kg/day were derived based on the antigen-specific IgM responses.
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Affiliation(s)
- Deborah E Keil
- Department of Microbiology and Immunology, Montana State University, PO Box 173520, Bozeman, MT, 59717, USA
| | - Brenda Buck
- Department of Geoscience, University of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - Dirk Goossens
- Department of Geoscience, University of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA.,Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001 Heverlee, Belgium
| | - Yuanxin Teng
- Department of Geoscience, University of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - James Pollard
- Department of Geoscience, University of Nevada, 4505 S. Maryland Pkwy., Las Vegas, NV, 89154, USA
| | - Brett McLaurin
- Department of Environmental, Geographical, and Geological Sciences, Bloomsburg University of Pennsylvania, Bloomsburg, PA, 17815, USA
| | - Russell Gerads
- Brooks Applied Labs, 18804 North Creek Parkway, Bothell, WA, 98011, USA
| | - Jamie DeWitt
- Department of Pharmacology and Toxicology, East Carolina University, 600 Moye Blvd., Greenville, NC 27834, USA
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Health effects following subacute exposure to geogenic dusts from arsenic-rich sediment at the Nellis Dunes Recreation Area, Las Vegas, NV. Toxicol Appl Pharmacol 2016; 304:79-89. [PMID: 27221630 DOI: 10.1016/j.taap.2016.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 05/17/2016] [Accepted: 05/20/2016] [Indexed: 11/23/2022]
Abstract
Geogenic dust from arid environments is a possible inhalation hazard for humans, especially when using off-road vehicles that generate significant dust. This study focused on immunotoxicological and neurotoxicological effects following subacute exposure to geogenic dust generated from sediments in the Nellis Dunes Recreation Area near Las Vegas, Nevada that are particularly high in arsenic; the naturally-occurring arsenic concentrations in these surficial sediments ranged from 4.8 to 346μg/g. Dust samples from sediments used in this study had a median diameter of 4.5μm and also were a complex mixture of naturally-occurring metals, including aluminum, vanadium, chromium, manganese, iron, cobalt, copper, zinc, strontium, cesium, lead, uranium, and arsenic. Adult female B6C3F1 mice exposed via oropharyngeal aspiration to 0.01 to 100mg dust/kg body weight, four times, a week apart, for 28days, were evaluated 24h after the last exposure. Peripheral eosinophils were increased at all concentrations, serum creatinine was dose responsively increased beginning at 1.0mg/kg/day, and blood urea nitrogen was decreased at 10 and 100mg/kg/day. Antigen-specific IgM responses and natural killer cell activity were dose-responsively suppressed at 0.1mg/kg/day and above. Splenic CD4+CD25+ T cells were decreased at 0.01, 0.1, 10, and 100mg/kg/day. Antibodies against MBP, NF-68, and GFAP were selectively reduced. A no observed adverse effect level of 0.01mg/kg/day and a lowest observed adverse effect level of 0.1mg/kg/day were determined from IgM responses and natural killer cell activity, indicating that exposure to this dust, under conditions similar to our design, could affect these responses.
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