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Wardhani K, Yazzie S, McVeigh C, Edeh O, Grimes M, Jacquez Q, Dixson C, Barr E, Liu R, Bolt AM, Feng C, Zychowski KE. Systemic immunological responses are dependent on sex and ovarian hormone presence following acute inhaled woodsmoke exposure. Part Fibre Toxicol 2024; 21:27. [PMID: 38797836 PMCID: PMC11129474 DOI: 10.1186/s12989-024-00587-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/17/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Rural regions of the western United States have experienced a noticeable surge in both the frequency and severity of acute wildfire events, which brings significant challenges to both public safety and environmental conservation efforts, with impacts felt globally. Identifying factors contributing to immune dysfunction, including endocrinological phenotypes, is essential to understanding how hormones may influence toxicological susceptibility. METHODS This exploratory study utilized male and female C57BL/6 mice as in vivo models to investigate distinct responses to acute woodsmoke (WS) exposure with a focus on sex-based differences. In a second set of investigations, two groups were established within the female mouse cohort. In one group, mice experienced ovariectomy (OVX) to simulate an ovarian hormone-deficient state similar to surgical menopause, while the other group received Sham surgery as controls, to investigate the mechanistic role of ovarian hormone presence in driving immune dysregulation following acute WS exposure. Each experimental cohort followed a consecutive 2-day protocol with daily 4-h exposure intervals under two conditions: control HEPA-filtered air (FA) and acute WS to simulate an acute wildfire episode. RESULTS Metals analysis of WS particulate matter (PM) revealed significantly increased levels of 63Cu, 182W, 208Pb, and 238U, compared to filtered air (FA) controls, providing insights into the specific metal components most impacted by the changing dynamics of wildfire occurrences in the region. Male and female mice exhibited diverse patterns in lung mRNA cytokine expression following WS exposure, with males showing downregulation and females displaying upregulation, notably for IL-1β, TNF-α, CXCL-1, CCL-5, TGF-β, and IL-6. After acute WS exposure, there were notable differences in the responses of macrophages, neutrophils, and bronchoalveolar lavage (BAL) cytokines IL-10, IL-6, IL-1β, and TNF-α. Significant diverse alterations were observed in BAL cytokines, specifically IL-1β, IL-10, IL-6, and TNF-α, as well as in the populations of immune cells, such as macrophages and polymorphonuclear leukocytes, in both Sham and OVX mice, following acute WS exposure. These findings elucidated the profound influence of hormonal changes on inflammatory outcomes, delineating substantial sex-related differences in immune activation and revealing altered immune responses in OVX mice due to ovarian hormone deficiency. In addition, the flow cytometry analysis highlighted the complex interaction between OVX surgery, acute WS exposure, and their collective impact on immune cell populations within the hematopoietic bone marrow niche. CONCLUSIONS In summary, both male and female mice, alongside females subjected to OVX and those who had sham surgery, exhibit significant variations in the expression of proinflammatory cytokines, chemokines, lung mRNA gene expression, and related functional networks linked to signaling pathways. These differences potentially act as mediators of sex-specific and hormonal influences in the systemic inflammatory response to acute WS exposure during a wildfire event. Understanding the regulatory roles of genes expressed differentially under environmental stressors holds considerable implications, aiding in identifying sex-specific therapeutic targets for addressing acute lung inflammation and injury.
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Affiliation(s)
- Kartika Wardhani
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
- Biochemistry and Biotechnology Group (B-TEK), Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Sydnee Yazzie
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Charlotte McVeigh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Onamma Edeh
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Martha Grimes
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Quiteria Jacquez
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Connor Dixson
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Edward Barr
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Rui Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Alicia M Bolt
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Changjian Feng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Katherine E Zychowski
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA.
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Ao LH, Wei YG, Tian HR, Zhao H, Li J, Ban JQ. Advances in the study of silica nanoparticles in lung diseases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169352. [PMID: 38110102 DOI: 10.1016/j.scitotenv.2023.169352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 12/01/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
Silicon dioxide nanoparticles (SiNPs) are one of the major forms of silicon dioxide and are composed of the most-abundant compounds on earth. Based on their excellent properties, SiNPs are widely used in food production, synthetic processes, medical diagnostics, drug delivery, and other fields. The mass production and wide application of SiNPs increases the risk of human exposure to SiNPs. In the workplace and environment, SiNPs mainly enter the human body through the respiratory tract and reach the lungs; therefore, the lungs are the most important and most toxicologically affected target organ of SiNPs. An increasing number of studies have shown that SiNP exposure can cause severe lung toxicity. However, studies on the toxicity of SiNPs in ex vivo and in vivo settings are still in the exploratory phase. The molecular mechanisms underlying the lung toxicity of SiNPs are varied and not yet fully understood. As a result, this review summarizes the possible mechanisms of SiNP-induced lung toxicity, such as oxidative stress, endoplasmic reticulum stress, mitochondrial damage, and cell death. Moreover, this study provides a summary of the progression of diseases caused by SiNPs, thereby establishing a theoretical basis for future studies on the mechanisms of SiNP-induced lung toxicity.
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Affiliation(s)
- Li-Hong Ao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Yun-Geng Wei
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hong-Ru Tian
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Hua Zhao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Jun Li
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, China
| | - Jia-Qi Ban
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, China.
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3
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Zafra-Pérez A, Boente C, García-Díaz M, Gómez-Galán JA, de la Campa AS, de la Rosa JD. Aerial monitoring of atmospheric particulate matter produced by open-pit mining using low-cost airborne sensors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166743. [PMID: 37659558 DOI: 10.1016/j.scitotenv.2023.166743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/09/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Mining is an economic activity that entails the production and displacement of significant amounts of atmospheric particulate matter (PM) during operations involving intense earthcrushing or earthmoving. As high concentrations of PM may have adverse effects on human health, it is necessary to monitor and control the fugitive emissions of this pollutant. This paper presents an innovative methodology for the online monitoring of PM10 concentrations in air using a low-cost sensor (LCS, <300 USD) onboard an unmanned aerial vehicle. After comprehensive calibration, the LCS was horizontally flown over seven different areas of the large Riotinto copper mine (Huelva, Spain) at different heights to study the PM10 distribution at different longitudes and altitudes. The flights covered areas of zero activity, intense mining, drilling, ore loading, waste discharge, open stockpiling, and mineral processing. In the zero-activity area, the resuspension of PM10 was very low, with a weak wind speed (3.6 m/s). In the intense-mining area, unhealthy concentrations of PM10 (>51 μgPM10/m3) could be released, and the PM10 can reach surrounding populations through long-distance transport driven by several processes being performed simultaneously. Strong dilution was also observed at high altitudes (> 50 m). Mean concentrations were found to be 22-89 μgPM10/m3, with peaks ranging from 86 to 284 μgPM10/m3. This study demonstrates the potential applicability of airborne LCSs in the high-resolution online monitoring of PM in mining, thus supporting environmental managers during decision-making against fugitive emissions in a cost-effective manner.
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Affiliation(s)
- Adrián Zafra-Pérez
- CIQSO-Center for Research in Sustainable Chemistry, Associate Unit CSIC-University of Huelva "Atmospheric Pollution", Campus El Carmen s/n, 21007 Huelva, Spain
| | - Carlos Boente
- Departamento de Ingeniería Geológica y Minera, E.T.S.I. Minas y Energía de Madrid, Universidad Politécnica de Madrid, C/ Ríos Rosas 21, Madrid, 28003, Spain.
| | - Manuel García-Díaz
- Department of Fluid Mechanics, University of Oviedo, C/Wifredo Ricart, Gijón 33204, Spain
| | - Juan Antonio Gómez-Galán
- Department of Electronic Engineering, Computers and Automation, University of Huelva, Huelva 21007, Spain
| | - Ana Sánchez de la Campa
- CIQSO-Center for Research in Sustainable Chemistry, Associate Unit CSIC-University of Huelva "Atmospheric Pollution", Campus El Carmen s/n, 21007 Huelva, Spain; Department of Earth Sciences, Faculty of Experimental Sciences, University of Huelva, Huelva 21007, Spain
| | - Jesús D de la Rosa
- CIQSO-Center for Research in Sustainable Chemistry, Associate Unit CSIC-University of Huelva "Atmospheric Pollution", Campus El Carmen s/n, 21007 Huelva, Spain; Department of Earth Sciences, Faculty of Experimental Sciences, University of Huelva, Huelva 21007, Spain
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4
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Scieszka D, Jin Y, Noor S, Barr E, Garcia M, Begay J, Herbert G, Hunter RP, Bhaskar K, Kumar R, Gullapalli R, Bolt A, McCormick MA, Bleske B, Gu H, Campen MJ. Biomass smoke inhalation promotes neuroinflammatory and metabolomic temporal changes in the hippocampus of female mice. J Neuroinflammation 2023; 20:192. [PMID: 37608305 PMCID: PMC10464132 DOI: 10.1186/s12974-023-02874-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/15/2023] [Indexed: 08/24/2023] Open
Abstract
Smoke from wildland fires has been shown to produce neuroinflammation in preclinical models, characterized by neural infiltrations of neutrophils and monocytes, as well as altered neurovascular endothelial phenotypes. To address the longevity of such outcomes, the present study examined the temporal dynamics of neuroinflammation and metabolomics after inhalation exposures from biomass-derived smoke. 2-month-old female C57BL/6 J mice were exposed to wood smoke every other day for 2 weeks at an average exposure concentration of 0.5 mg/m3. Subsequent serial euthanasia occurred at 1-, 3-, 7-, 14-, and 28-day post-exposure. Flow cytometry of right hemispheres revealed two endothelial populations of CD31Hi and CD31Med expressors, with wood smoke inhalation causing an increased proportion of CD31Hi. These populations of CD31Hi and CD31Med were associated with an anti-inflammatory and pro-inflammatory response, respectively, and their inflammatory profiles were largely resolved by the 28-day mark. However, activated microglial populations (CD11b+/CD45low) remained higher in wood smoke-exposed mice than controls at day 28. Infiltrating neutrophil populations decreased to levels below controls by day 28. However, the MHC-II expression of the peripheral immune infiltrate remained high, and the population of neutrophils retained an increased expression of CD45, Ly6C, and MHC-II. Utilizing an unbiased approach examining the metabolomic alterations, we observed notable hippocampal perturbations in neurotransmitter and signaling molecules, such as glutamate, quinolinic acid, and 5-α-dihydroprogesterone. Utilizing a targeted panel designed to explore the aging-associated NAD+ metabolic pathway, wood smoke exposure drove fluctuations and compensations across the 28-day time course, ending with decreased hippocampal NAD+ abundance on day 28. Summarily, these results indicate a highly dynamic neuroinflammatory environment, with potential resolution extending past 28 days, the implications of which may include long-term behavioral changes, systemic and neurological sequalae directly associated with wildfire smoke exposure.
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Affiliation(s)
- David Scieszka
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Yan Jin
- Florida International University Center for Translational Sciences, Port St. Lucie, FL, 34987, USA
| | - Shahani Noor
- Department of Molecular Genetics and Microbiology, Department of Neurology, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Ed Barr
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Marcus Garcia
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Jessica Begay
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Guy Herbert
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Russell P Hunter
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Kiran Bhaskar
- Department of Molecular Genetics and Microbiology, Department of Neurology, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Rahul Kumar
- Department of Pathology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Rama Gullapalli
- Department of Pathology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Alicia Bolt
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA
| | - Mark A McCormick
- Department of Biochemistry and Molecular Biology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Barry Bleske
- Department of Pharmacy Practice and Administrative Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Haiwei Gu
- Florida International University Center for Translational Sciences, Port St. Lucie, FL, 34987, USA
| | - Matthew J Campen
- Department of Pharmaceutical Sciences College of Pharmacy, University of New Mexico, MSC09 5360; 1, Albuquerque, NM, 87131-0001, USA.
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5
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Taghavizadeh Yazdi ME, Qayoomian M, Beigoli S, Boskabady MH. Recent advances in nanoparticle applications in respiratory disorders: a review. Front Pharmacol 2023; 14:1059343. [PMID: 37538179 PMCID: PMC10395100 DOI: 10.3389/fphar.2023.1059343] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 05/30/2023] [Indexed: 08/05/2023] Open
Abstract
Various nanoparticles are used in the discovery of new nanomedicine to overcome the shortages of conventional drugs. Therefore, this article presents a comprehensive and up-to-date review of the effects of nanoparticle-based drugs in the treatment of respiratory disorders, including both basic and clinical studies. Databases, including PubMed, Web of Knowledge, and Scopus, were searched until the end of August 2022 regarding the effect of nanoparticles on respiratory diseases. As a new tool, nanomedicine offered promising applications for the treatment of pulmonary diseases. The basic composition and intrinsic characteristics of nanomaterials showed their effectiveness in treating pulmonary diseases. The efficiency of different nanomedicines has been demonstrated in experimental animal models of asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer, lung infection, and other lung disorders, confirming their function in the improvement of respiratory disorders. Various types of nanomaterials, such as carbon nanotubes, dendrimers, polymeric nanomaterials, liposomes, quantum dots, and metal and metal oxide nanoparticles, have demonstrated therapeutic effects on respiratory disorders, which may lead to new possible remedies for various respiratory illnesses that could increase drug efficacy and decrease side effects.
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Affiliation(s)
| | - Mohsen Qayoomian
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sima Beigoli
- Mashhad University of Medical Sciences, Mashhad, Razavi Khorasan, Iran
| | - Mohammad Hossein Boskabady
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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6
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Jin X, Zhang Z, Guan G, Zhou Q, Zheng Y, Jiang G. Silica Nanoparticles Promote the Megakaryocyte Maturation and Differentiation: Potential Implications for Hematological Homeostasis. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37310794 DOI: 10.1021/acsami.3c04046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Silica nanoparticles (SiO2 NPs) have been widely applied in diverse areas, thus causing the extensive release through multiple routes. Their toxicological effects, especially for the disturbance in hematological homeostasis, have raised public concern. Considering the detrimental role of excessive platelets in many cardiovascular diseases, the regulation of platelet formation offers a unique aspect for studying the blood compatibility of nanomaterials. In this study, the effects of SiO2 NPs with four sizes (80, 120, 200, and 400 nm) were investigated on the maturation and differentiation of the megakaryocytes into platelets. The results showed that SiO2 NPs promoted megakaryocyte development as manifested by the occurrence of irregular cell morphology, enlargement of cell size, increases in DNA content and DNA ploidy, and formation of spore-like protrusions. The expression of megakaryocyte-specific antigen (CD41a) was up-regulated, due to SiO2 NP treatments. The correlation analysis of SiO2 NP size with the above test bioindicators showed that the smaller the SiO2 NPs were, the stronger effects they induced. Moreover, exposure to SiO2 NPs induced the up-regulation of both GATA-1 and FLI-1, while the transcriptional expressions of aNF-E2 and fNF-E2 remained unchanged. The significant positive correlation of GATA-1 and FLI-1 with megakaryocytic maturation and differentiation suggested their crucial roles in the SiO2 NP-promoted effect. The finding herein provided new insight into the potential health risk of SiO2 NPs by perturbing the platelet-involved hematological homeostasis.
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Affiliation(s)
- Xiaoting Jin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- School of Public Health, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Ze Zhang
- School of Public Health, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Ge Guan
- School of Public Health, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Institute of Environment and Health, Jianghan University, Wuhan 430056, P. R. China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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7
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Scieszka D, Jin Y, Noor S, Barr E, Garcia M, Begay J, Herbert G, Hunter RP, Bhaskar K, Kumar R, Gullapalli R, Bolt A, McCormick MA, Bleske B, Gu H, Campen M. Neuroinflammatory and Metabolomic Temporal Dynamics Following Wood Smoke Inhalation. RESEARCH SQUARE 2023:rs.3.rs-3002040. [PMID: 37333410 PMCID: PMC10275049 DOI: 10.21203/rs.3.rs-3002040/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Smoke from wildland fires has been shown to produce neuroinflammation in preclinical models, characterized by neural infiltrations of neutrophils and monocytes, as well as altered neurovascular endothelial phenotypes. To address the longevity of such outcomes, the present study examined the neuroinflammatory and metabolomic temporal dynamics after inhalation exposures from biomass-derived smoke. 2-month-old female C57BL/6J mice were exposed to wood smoke every other day for two weeks at an average exposure concentration of 0.5mg/m 3 . Subsequent serial euthanasia occurred at 1-, 3-, 7-, 14-, and 28-days post-exposure. Flow cytometry of right hemispheres revealed two endothelial populations of PECAM (CD31), high and medium expressors, with wood smoke inhalation causing an increased proportion of PECAM Hi . These populations of PECAM Hi and PECAM Med were associated with an anti-inflammatory and pro-inflammatory response, respectively, and their inflammatory profiles were largely resolved by the 28-day mark. However, activated microglial populations (CD11b + /CD45 low ) remained higher in wood smoke-exposed mice than controls at day 28. Infiltrating neutrophil populations decreased to levels below controls by day 28. However, the MHC-II expression of the peripheral immune infiltrate remained high, and the population of neutrophils retained an increased expression of CD45, Ly6C, and MHC-II. Utilizing an unbiased approach examining the metabolomic alterations, we observed notable hippocampal perturbations in neurotransmitter and signaling molecules like glutamate, quinolinic acid, and 5-α-dihydroprogesterone. Utilizing a targeted panel designed to explore the aging-associated NAD + metabolic pathway, wood smoke exposure drove fluctuations and compensations across the 28-day time course, ending with decreased hippocampal NAD + abundance at day 28. Summarily, these results indicate a highly dynamic neuroinflammatory environment, with potential resolution extending past 28 days, the implications of which may include long-term behavioral changes, systemic and neurological sequalae directly associated wtith wildfire smoke exposure.
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Affiliation(s)
| | - Yan Jin
- Florida International University, Center for Translational Sciences
| | - Shahani Noor
- University of New Mexico, Department of Molecular Genetics and Microbiology
| | - Ed Barr
- University of New Mexico, College of Pharmacy
| | | | | | - Guy Herbert
- University of New Mexico, College of Pharmacy
| | | | - Kiran Bhaskar
- University of New Mexico, Department of Molecular Genetics and Microbiology
| | - Rahul Kumar
- University of New Mexico, Department of Pathology
| | | | - Alicia Bolt
- University of New Mexico, College of Pharmacy
| | - Mark A McCormick
- University of New Mexico, Department of Biochemistry and Molecular Biology
| | - Barry Bleske
- University of New Mexico, Department of Pharmacy Practice and Administrative Science
| | - Haiwei Gu
- Florida International University, Center for Translational Sciences
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8
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Kodavanti UP, Jackson TW, Henriquez AR, Snow SJ, Alewel DI, Costa DL. Air Pollutant impacts on the brain and neuroendocrine system with implications for peripheral organs: a perspective. Inhal Toxicol 2023; 35:109-126. [PMID: 36749208 DOI: 10.1080/08958378.2023.2172486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Air pollutants are being increasingly linked to extrapulmonary multi-organ effects. Specifically, recent studies associate air pollutants with brain disorders including psychiatric conditions, neuroinflammation and chronic diseases. Current evidence of the linkages between neuropsychiatric conditions and chronic peripheral immune and metabolic diseases provides insights on the potential role of the neuroendocrine system in mediating neural and systemic effects of inhaled pollutants (reactive particulates and gases). Autonomically-driven stress responses, involving sympathetic-adrenal-medullary and hypothalamus-pituitary-adrenal axes regulate cellular physiological processes through adrenal-derived hormones and diverse receptor systems. Recent experimental evidence demonstrates the contribution of the very stress system responding to non-chemical stressors, in mediating systemic and neural effects of reactive air pollutants. The assessment of how respiratory encounter of air pollutants induce lung and peripheral responses through brain and neuroendocrine system, and how the impairment of these stress pathways could be linked to chronic diseases will improve understanding of the causes of individual variations in susceptibility and the contribution of habituation/learning and resiliency. This review highlights effects of air pollution in the respiratory tract that impact the brain and neuroendocrine system, including the role of autonomic sensory nervous system in triggering neural stress response, the likely contribution of translocated nano particles or metal components, and biological mediators released systemically in causing effects remote to the respiratory tract. The perspective on the use of systems approaches that incorporate multiple chemical and non-chemical stressors, including environmental, physiological and psychosocial, with the assessment of interactive neural mechanisms and peripheral networks are emphasized.
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Affiliation(s)
- Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Thomas W Jackson
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Andres R Henriquez
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | | | - Devin I Alewel
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Daniel L Costa
- Department of Environmental Sciences and Engineering, Gilling's School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
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9
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He L, Wang H, Duan S, Gao Y, Lyu L, Ou X, Yu N, Zhang Y, Zheng L, Wang Y. Characterization of titanium dioxide nanoparticles in confectionary products and estimation of dietary exposure level among the Chinese population. NANOIMPACT 2022; 28:100435. [PMID: 36309319 DOI: 10.1016/j.impact.2022.100435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/12/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Titanium dioxide (TiO2) is widely used in the food industry. Recently, European Commission has banned TiO2 as a food additive, raising public concern about its health risk, especially the nanoparticles (NPs) contained therein. This study aimed to reveal the existence of TiO2 NPs in food and further estimate the dietary exposure level among Chinese population by characterizing particle size distribution, determining Ti content and micro-distribution in food products, and calculating food consumption from the China Health and Nutrition Survey (CHNS). The results showed that TiO2 particle size in food additives and chewing gums was 53.5-230.3 nm and 56.8-267.7 nm respectively, where NPs accounted for 34.7% and 55.6% respectively. TiO2 was firstly in situ presented on the surface of confectionary products with hard shells. The content of TiO2 ranged from 3.2 to 3409.3 μg/g product. Besides, the mean dietary intake was 71.31 μg/kgbw/day for TiO2 and 7.75 μg/kgbw/day for TiO2 NPs among Chinese population, affected by people's dietary habits of different regions. Children's exposure levels was the highest due to their love of sweets. More attention should be paid to risk assessment and management of TiO2 NPs for children in China.
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Affiliation(s)
- Langzhi He
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Hongbo Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Shumin Duan
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Yanjun Gao
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Lizhi Lyu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Xiaxian Ou
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Nairui Yu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Yaoyun Zhang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China
| | - Lingna Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yun Wang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, P.R. China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, P.R. China.
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