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Kwag Y, Oh J, Yang W, Kim Y, Ha EH, Ye S. Effect of PM concentration on anemia blood indicators reduced by air purifiers. CHEMOSPHERE 2023; 323:138131. [PMID: 36822522 DOI: 10.1016/j.chemosphere.2023.138131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Housewives perform daily household chores, which directly expose them to indoor particulate matter (PM). Indoor PM exposure is a potential factor that increases systemic inflammation and affects hematopoietic action. This study investigated the decrease in indoor PM concentration by air purifiers on indicators of anemia, such as hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC). We analyzed the data of 40 housewives who were subjected to an air purifier intervention in Seoul and Ulsan, Republic of Korea. Indoor exposure levels of PM2.5 and PM10 were analyzed with sensor adjusted and gravimetric measurement. We also investigated the same anemia indicators before and after the installation of an air purifier for three months (short-term: one month, long-term: three months). Statistical analysis was performed by a multiple linear model and a linear mixed model. The indoor PM exposure levels and air purifier use were related to anemia indicators (hemoglobin and MCHC). The increase in indoor PM2.5 level was associated with a decrease in MCHC (β: 0.034, P = 0.031) and hemoglobin (β: 0.013, P = 0.04). The decrease in indoor PM2.5 concentration by air purifier was associated with an increase in MCHC (β: 0.204, P = 0.087) and hemoglobin (β: 0.190, P = 0.039). In particular, after air purifier intervention, the amounts of MCHC and hemoglobin significantly increased. Our results suggest that indoor air purifier use could decrease indoor PM level and the risk of anemia to housewives. Because the effect on anemia is subacute, it was confirmed three months after air purifier operation. In conclusion, anemia indicators can be improved by PM reduction management.
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Affiliation(s)
- Youngrin Kwag
- Department of Environmental Medicine, School of Medicine, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, Republic of Korea; Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul, South Korea.
| | - Jongmin Oh
- Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul, South Korea; Institute of Ewha-SCL for Environmental Health (IESEH), College of Medicine, Ewha Womans University, South Korea
| | - Wonho Yang
- Department of Occupational Health Catholic University of Daegu, Daegu, Republic of Korea
| | - Yangho Kim
- Department of Occupational and Environmental Medicine, Ulsan University, Ulsan, Republic of Korea
| | - Eun-Hee Ha
- Department of Environmental Medicine, School of Medicine, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, Republic of Korea; Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul, South Korea.
| | - Shinhee Ye
- Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul, South Korea; Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Incheon, Republic of Korea.
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Xiang W, Wang W, Du L, Zhao B, Liu X, Zhang X, Yao L, Ge M. Toxicological Effects of Secondary Air Pollutants. Chem Res Chin Univ 2023; 39:326-341. [PMID: 37303472 PMCID: PMC10147539 DOI: 10.1007/s40242-023-3050-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/13/2023] [Indexed: 06/13/2023]
Abstract
Secondary air pollutants, originating from gaseous pollutants and primary particulate matter emitted by natural sources and human activities, undergo complex atmospheric chemical reactions and multiphase processes. Secondary gaseous pollutants represented by ozone and secondary particulate matter, including sulfates, nitrates, ammonium salts, and secondary organic aerosols, are formed in the atmosphere, affecting air quality and human health. This paper summarizes the formation pathways and mechanisms of important atmospheric secondary pollutants. Meanwhile, different secondary pollutants' toxicological effects and corresponding health risks are evaluated. Studies have shown that secondary pollutants are generally more toxic than primary ones. However, due to their diverse source and complex generation mechanism, the study of the toxicological effects of secondary pollutants is still in its early stages. Therefore, this paper first introduces the formation mechanism of secondary gaseous pollutants and focuses mainly on ozone's toxicological effects. In terms of particulate matter, secondary inorganic and organic particulate matters are summarized separately, then the contribution and toxicological effects of secondary components formed from primary carbonaceous aerosols are discussed. Finally, secondary pollutants generated in the indoor environment are briefly introduced. Overall, a comprehensive review of secondary air pollutants may shed light on the future toxicological and health effects research of secondary air pollutants.
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Affiliation(s)
- Wang Xiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Weigang Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Libo Du
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Bin Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang, 050024 P. R. China
| | - Xingyang Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Xiaojie Zhang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Li Yao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049 P. R. China
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3
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Wei D, Shen S, Lu J, Liu W, Chen N, Lam KBH, Au Yeung SL, Xia H, Qiu X. Association between incense burning and prenatal depressive symptoms: evidence from the Born in Guangzhou Cohort Study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40860-40869. [PMID: 36622609 DOI: 10.1007/s11356-023-25154-x] [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: 08/04/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
This study aimed to examine the association of incense burning alone, a source of indoor air pollution, and jointly with passive smoking, with prenatal depressive symptoms. Information on incense exposure and depressive symptoms were collected at both early and late pregnancy using questionnaires in the Born in Guangzhou Cohort Study. Mixed-effects logistic regression models were used to assess the associations of incense exposure separately, and together with passive smoking, with prenatal depressive symptoms. Compared to the non-users, pregnant women with household incense burning had higher odds of depressive symptoms (odds ratio (OR), 1.17, 95% CI, 1.06, 1.28). Compared with non-users, women who occasionally (OR, 1.22, 95% CI, 1.09, 1.36) and frequently (1.51, 95% CI, 1.26, 1.80) smelled incense had higher odds of prenatal depressive symptoms. Higher duration of incense smelling was associated with higher odds of prenatal depressive symptoms compared with non-users. There was no strong evidence for an interaction of frequency of incense smelling and passive smoking in prenatal depressive symptoms. Prenatal exposure to incense burning was associated with higher odds of having depressive symptoms during pregnancy, and there is no evidence for interaction with concurrent exposure to passive smoking.
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Affiliation(s)
- Dongmei Wei
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
- Department of Women's Health, Guangdong Provincial Key Clinical Specialty of Woman and Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Songying Shen
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
| | - Jinhua Lu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
- Department of Women's Health, Guangdong Provincial Key Clinical Specialty of Woman and Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wenyu Liu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
| | - Niannian Chen
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
- Department of Women's Health, Guangdong Provincial Key Clinical Specialty of Woman and Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | | | - Shiu Lun Au Yeung
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Huimin Xia
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China
- Department of Neonatal Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiu Qiu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510623, China.
- Department of Women's Health, Guangdong Provincial Key Clinical Specialty of Woman and Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
- Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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Mechanisms of Lung Damage and Development of COPD Due to Household Biomass-Smoke Exposure: Inflammation, Oxidative Stress, MicroRNAs, and Gene Polymorphisms. Cells 2022; 12:cells12010067. [PMID: 36611860 PMCID: PMC9818405 DOI: 10.3390/cells12010067] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
Chronic exposure to indoor biomass smoke from the combustion of solid organic fuels is a major cause of disease burden worldwide. Almost 3 billion people use solid fuels such as wood, charcoal, and crop residues for indoor cooking and heating, accounting for approximately 50% of all households and 90% of rural households globally. Biomass smoke contains many hazardous pollutants, resulting in household air pollution (HAP) exposure that often exceeds international standards. Long-term biomass-smoke exposure is associated with Chronic Obstructive Pulmonary Disease (COPD) in adults, a leading cause of morbidity and mortality worldwide, chronic bronchitis, and other lung conditions. Biomass smoke-associated COPD differs from the best-known cigarette smoke-induced COPD in several aspects, such as a slower decline in lung function, greater airway involvement, and less emphysema, which suggests a different phenotype and pathophysiology. Despite the high burden of biomass-associated COPD, the molecular, genetic, and epigenetic mechanisms underlying its pathogenesis are poorly understood. This review describes the pathogenic mechanisms potentially involved in lung damage, the development of COPD associated with wood-derived smoke exposure, and the influence of genetic and epigenetic factors on the development of this disease.
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Fandiño-Del-Rio M, Kephart JL, Williams KN, Shade T, Adekunle T, Steenland K, Naeher LP, Moulton LH, Gonzales GF, Chiang M, Hossen S, Chartier RT, Koehler K, Checkley W. Household Air Pollution Concentrations after Liquefied Petroleum Gas Interventions in Rural Peru: Findings from a One-Year Randomized Controlled Trial Followed by a One-Year Pragmatic Crossover Trial. ENVIRONMENTAL HEALTH PERSPECTIVES 2022; 130:57007. [PMID: 35549716 PMCID: PMC9097958 DOI: 10.1289/ehp10054] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 05/29/2023]
Abstract
BACKGROUND Household air pollution (HAP) from biomass fuel combustion remains a leading environmental risk factor for morbidity worldwide. OBJECTIVE Measure the effect of liquefied petroleum gas (LPG) interventions on HAP exposures in Puno, Peru. METHODS We conducted a 1-y randomized controlled trial followed by a 1-y pragmatic crossover trial in 180 women age 25-64 y. During the first year, intervention participants received a free LPG stove, continuous fuel delivery, and regular behavioral messaging, whereas controls continued their biomass cooking practices. During the second year, control participants received a free LPG stove, regular behavioral messaging, and vouchers to obtain LPG tanks from a nearby distributor, whereas fuel distribution stopped for intervention participants. We collected 48-h kitchen area concentrations and personal exposures to fine particulate matter (PM) with aerodynamic diameter ≤ 2.5 μ m (PM 2.5 ), black carbon (BC), and carbon monoxide (CO) at baseline and 3-, 6-, 12-, 18-, and 24-months post randomization. RESULTS Baseline mean [ ± standard deviation ( SD ) ] PM 2.5 (kitchen area concentrations 1,220 ± 1,010 vs. 1,190 ± 880 μ g / m 3 ; personal exposure 126 ± 214 vs. 104 ± 100 μ g / m 3 ), CO (kitchen 53 ± 49 vs. 50 ± 41 ppm ; personal 7 ± 8 vs. 7 ± 8 ppm ), and BC (kitchen 180 ± 120 vs. 210 ± 150 μ g / m 3 ; personal 19 ± 16 vs. 21 ± 22 μ g / m 3 ) were similar between control and intervention participants. Intervention participants had consistently lower mean ( ± SD ) concentrations at the 12-month visit for kitchen (41 ± 59 μ g / m 3 , 3 ± 6 μ g / m 3 , and 8 ± 13 ppm ) and personal exposures (26 ± 34 μ g / m 3 , 2 ± 3 μ g / m 3 , and 3 ± 4 ppm ) to PM 2.5 , BC, and CO when compared to controls during the first year. In the second year, we observed comparable HAP reductions among controls after the voucher-based intervention for LPG fuel was implemented (24-month visit PM 2.5 , BC, and CO kitchen mean concentrations of 34 ± 74 μ g / m 3 , 3 ± 5 μ g / m 3 , and 6 ± 6 ppm and personal exposures of 17 ± 15 μ g / m 3 , 2 ± 2 μ g / m 3 , and 3 ± 4 ppm , respectively), and average reductions were present among intervention participants even after free fuel distribution stopped (24-month visit PM 2.5 , BC, and CO kitchen mean concentrations of 561 ± 1,251 μ g / m 3 , 82 ± 124 μ g / m 3 , and 23 ± 28 ppm and personal exposures of 35 ± 38 μ g / m 3 , 6 ± 6 μ g / m 3 , and 4 ± 5 ppm , respectively). DISCUSSION Both home delivery and voucher-based provision of free LPG over a 1-y period, in combination with provision of a free LPG stove and longitudinal behavioral messaging, reduced HAP to levels below 24-h World Health Organization air quality guidelines. Moreover, the effects of the intervention on HAP persisted for a year after fuel delivery stopped. Such strategies could be applied in LPG programs to reduce HAP and potentially improve health. https://doi.org/10.1289/EHP10054.
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Affiliation(s)
- Magdalena Fandiño-Del-Rio
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
| | - Josiah L. Kephart
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
| | - Kendra N. Williams
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Timothy Shade
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
| | - Temi Adekunle
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Kyle Steenland
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Luke P. Naeher
- Environmental Health Science Department, College of Public Health, University of Georgia, Athens, Georgia, USA
| | - Lawrence H. Moulton
- Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Gustavo F. Gonzales
- Laboratories of Investigation and Development, Department of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
- High Altitude Research Institute, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Marilu Chiang
- Biomedical Research Unit, Asociación Benéfica PRISMA, Lima, Perú
| | - Shakir Hossen
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Kirsten Koehler
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - William Checkley
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Cardiopulmonary outcomes and Household Air Pollution (CHAP) Trial Investigators
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
- Environmental Health Science Department, College of Public Health, University of Georgia, Athens, Georgia, USA
- Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- Laboratories of Investigation and Development, Department of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
- High Altitude Research Institute, Universidad Peruana Cayetano Heredia, Lima, Perú
- Biomedical Research Unit, Asociación Benéfica PRISMA, Lima, Perú
- RTI International, Durham, North Carolina, USA
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Raqib R, Akhtar E, Sultana T, Ahmed S, Chowdhury MAH, Shahriar MH, Kader SB, Eunus M, Haq MA, Sarwar G, Islam T, Alam DS, Parvez F, Begum BA, Ahsan H, Yunus M. Association of household air pollution with cellular and humoral immune responses among women in rural Bangladesh. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 299:118892. [PMID: 35077836 PMCID: PMC9850293 DOI: 10.1016/j.envpol.2022.118892] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/29/2021] [Accepted: 01/20/2022] [Indexed: 05/29/2023]
Abstract
Household air pollution (HAP) arising from combustion of biomass fuel (BMF) is a leading cause of morbidity and mortality in low-income countries. Air pollution may stimulate pro-inflammatory responses by activating diverse immune cells and cyto/chemokine expression, thereby contributing to diseases. We aimed to study cellular immune responses among women chronically exposed to HAP through use of BMF for domestic cooking. Among 200 healthy, non-smoking women in rural Bangladesh, we assessed exposure to HAP by measuring particulate matter 2.5 (PM2.5), black carbon (BC) and carbon monoxide (CO), through use of personal monitors RTI MicroPEM™ and Lascar CO logger respectively, for 48 h. Blood samples were collected following HAP exposure assessment and were analyzed for immunoprofiling by flow cytometry, plasma IgE by immunoassay analyzer and cyto/chemokine response from monocyte-derived-macrophages (MDM) and -dendritic cells (MDDC) by multiplex immunoassay. In multivariate linear regression model, a doubling of PM2.5 was associated with small increments in immature/early B cells (CD19+CD38+) and plasmablasts (CD19+CD38+CD27+). In contrast, a doubling of CO was associated with 1.20% reduction in CD19+ B lymphocytes (95% confidence interval (CI) = -2.36, -0.01). A doubling of PM2.5 and BC each was associated with 3.12% (95%CI = -5.85, -0.38) and 4.07% (95%CI = -7.96, -0.17) decrements in memory B cells (CD19+CD27+), respectively. Exposure to CO was associated with increased plasma IgE levels (beta(β) = 240.4, 95%CI = 3.06, 477.8). PM2.5 and CO exposure was associated with increased MDM production of CXCL10 (β = 12287, 95%CI = 1038, 23536) and CCL5 (β = 835.7, 95%CI = 95.5, 1576), respectively. Conversely, BC exposure was associated with reduction in MDDC-produced CCL5 (β = -3583, 95%CI = -6358, -807.8) and TNF-α (β = -15521, 95%CI = -28968, -2074). Our findings suggest that chronic HAP exposure through BMF use adversely affects proportions of B lymphocytes, particularly memory B cells, plasma IgE levels and functions of antigen presenting cells in rural women.
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Affiliation(s)
| | - Evana Akhtar
- Infectious Diseases Division, icddr,b, Bangladesh
| | | | - Shyfuddin Ahmed
- Health Systems and Population Studies Division, icddr,b, Dhaka, 1212, Bangladesh
| | | | | | - Shirmin Bintay Kader
- Health Systems and Population Studies Division, icddr,b, Dhaka, 1212, Bangladesh
| | - Mahbbul Eunus
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | | | - Golam Sarwar
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | - Tariqul Islam
- U-Chicago Research Bangladesh, Mohakhali, Dhaka, Bangladesh
| | | | - Faruque Parvez
- Mailman School of Public Health, Columbia University, New York, USA
| | | | - Habibul Ahsan
- Department of Public Health Sciences, University of Chicago, Chicago, USA
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Essential metals, vitamins and antioxidant enzyme activities in COVID-19 patients and their potential associations with the disease severity. Biometals 2022; 35:125-145. [PMID: 34993712 PMCID: PMC8736309 DOI: 10.1007/s10534-021-00355-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/25/2021] [Indexed: 02/08/2023]
Abstract
The role of micronutrient deficiency in the pathogenesis of COVID-19 has been reviewed in the literature; however, the data are limited and conflicting. This study investigated the association between the status of essential metals, vitamins, and antioxidant enzyme activities in COVID-19 patients and disease severity. We recruited 155 patients, who were grouped into four classes based on the Adults guideline for the Management of Coronavirus Disease 2019 at King Faisal Specialist & Research Centre (KFSH&RC): asymptomatic (N = 16), mild (N = 49), moderate (N = 68), and severe (N = 22). We measured serum levels of copper (Cu), zinc (Zn), selenium (Se), vitamin D3, vitamin A, vitamin E, total antioxidant capacity, and superoxide dismutase (SOD). Among the patients, 30%, 25%, 37%, and 68% were deficient in Se (< 70.08 µg/L), Zn (< 0.693 µg/mL), vitamin A (< 0.343 µg/mL), and vitamin D3 (< 20.05 µg/L), respectively, and SOD activity was low. Among the patients, 28% had elevated Cu levels (> 1.401 µg/mL, KFSH&RC upper reference limit). Multiple regression analysis revealed an 18% decrease in Se levels in patients with severe symptoms, which increased to 30% after adjusting the model for inflammatory markers. Regardless of inflammation, Se was independently associated with COVID-19 severity. In contrast, a 50% increase in Cu levels was associated with disease severity only after adjusting for C-reactive protein, reflecting its possible inflammatory and pro-oxidant role in COVID-19 pathogenesis. We noted an imbalance in the ratio between Cu and Zn, with ~ 83% of patients having a Cu/Zn ratio > 1, which is an indicator of inflammation. Cu-to-Zn ratio increased to 45% in patients with mild symptoms and 34%–36% in patients with moderate symptoms compared to asymptomatic patients. These relationships were only obtained when one of the laboratory parameters (lymphocyte or monocyte) or inflammatory markers (neutrophil-to-lymphocyte ratio) was included in the regression model. These findings suggest that Cu/Zn might further exacerbate inflammation in COVID-19 patients and might be synergistically associated with disease severity. A 23% decrease in vitamin A was seen in patients with severe symptoms, which disappeared after adjusting for inflammatory markers. This finding may highlight the potential role of inflammation in mediating the relationship between COVID-19 severity and vitamin A levels. Despite our patients’ low status of Zn, vitamin D3, and antioxidant enzyme (SOD), there is no evidence of their role in COVID-19 progression. Our findings reinforce that deficiency or excess of certain micronutrients plays a role in the pathogenesis of COVID-19. More studies are required to support our results.
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8
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Kwag Y, Ye S, Oh J, Lee DW, Yang W, Kim Y, Ha E. Direct and Indirect Effects of Indoor Particulate Matter on Blood Indicators Related to Anemia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182412890. [PMID: 34948498 PMCID: PMC8701383 DOI: 10.3390/ijerph182412890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022]
Abstract
Exposure to indoor particulate matter (PM) is a potential risk factor that increases systemic inflammation and affects erythropoiesis. This study investigated the association between exposure to indoor PM and blood indicators related to anemia (BIRA) in housewives. Indoor PM and blood folate status are important factors in the risk of anemia. This was a housewife cohort study; we recruited 284 housewives in Seoul and Ulsan, Republic of Korea. Indoor exposure to PM2.5 and PM10 was measured by gravimetric analysis and sensors. We investigated the BIRA, such as hemoglobin (Hb), hematocrit, mean corpuscular volume (MCV), mean corpuscular Hb (MCH), and mean corpuscular Hb concentration (MCHC). Statistical analysis was performed by multiple linear regression model and mediation analysis. The association between BIRA and PM was assessed by multiple linear regression models fitted by mediation analyses. The increase in the level of indoor PM2.5 was associated with a decrease in MCV (Beta coefficient (B): −0.069, Standard error (SE): 0.022) and MCH (B: −0.019, SE: 0.009) in gravimetric measurements. The increase in the level of indoor PM2.5 was associated with a decrease in Hb (B: −0.024, SE: 0.011), hematocrit (B: −0.059, SE: 0.033), and MCV (B: −0.081, SE: 0.037) and MCH (B: −0.037, SE: 0.012) in sensor measurements (PM2.5-Lag10). Further, we identified a serum folate-mediated PM effect. The indoor PM exposure was significantly associated with decreased Hb, MCV, and MCH in housewives. Taken together, our data show that exposure to indoor PM is a risk factor for anemia in housewives. Blood folate concentration can be a mediating factor in the effect of indoor PM on BIRA. Therefore, folate intake should be recommended to prevent anemia in housewives. Moreover, indoor PM exposure should be managed.
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Affiliation(s)
- Youngrin Kwag
- Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea; (Y.K.); (J.O.)
- Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul KS013, Korea
| | - Shinhee Ye
- Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency, Incheon KS006, Korea;
| | - Jongmin Oh
- Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea; (Y.K.); (J.O.)
| | - Dong-Wook Lee
- Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul KS013, Korea;
| | - Wonho Yang
- Department of Occupational Health, Daegu Catholic University, Gyeongsan-si KS002, Korea;
| | - Yangho Kim
- Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan KS016, Korea
- Correspondence: (Y.K.); (E.H.)
| | - Eunhee Ha
- Department of Environmental Medicine, School of Medicine, Ewha Womans University, Seoul KS013, Korea; (Y.K.); (J.O.)
- Correspondence: (Y.K.); (E.H.)
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9
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Che L, Yu C, Chen G, Lin J, Xie Z, Xia T, Luo W, Cai X, Liu S. The Inflammatory Response Induced by RELMβ Upregulates IL-8 and IL-1β Expression in Bronchial Epithelial Cells in COPD. Int J Chron Obstruct Pulmon Dis 2021; 16:2503-2513. [PMID: 34511895 PMCID: PMC8421257 DOI: 10.2147/copd.s321877] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/23/2021] [Indexed: 01/04/2023] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD) is associated with a complex inflammatory regulatory network. Resistin-like molecule β (RELMβ) is highly expressed in the lungs of COPD patients. We aimed to investigate the proinflammatory effect of RELMβ on airway epithelial cells in COPD. Methods First, a GEO dataset was used to analyze the expression of the RELMβ gene in the COPD and control groups as well as the protein levels of RELMβ in the sera of outpatients with COPD and normal control subjects in our hospital. We also stimulated 16HBE bronchial epithelial cells with recombinant RELMβ protein and analyzed the expression of IL-8 and IL-1β. We upregulated and downregulated the gene expression of RELMβ in 16HBE cells and analyzed the expression of the inflammatory cytokines IL-8 and IL-1β. In addition, we also examined the mechanism by which the p38 MAPK signaling pathway contributed to the regulation of IL-8 and IL-1β expression by RELMβ. Results RELMβ expression was increased in COPD tissues in different data sets and in the serum of COPD patients in our hospital. IL-8 and IL-1β expression was also increased in COPD tissues with high RELMβ gene expression in different data sets. The RELMβ gene was mainly related to inflammatory factors and inflammatory signaling pathways in the PPI regulatory network. Experiments at the cellular level showed that RELMβ promoted the expression of the inflammatory cytokines IL-8 and IL-1β, and this regulation was mediated by the p38 MAPK signaling pathway. Conclusion RELMβ can promote the expression of the inflammatory cytokines IL-8 and IL-1β in bronchial epithelial cells of patients with COPD and exert inflammatory effects. RELMβ may be a potential target for the treatment of COPD.
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Affiliation(s)
- Li Che
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Chao Yu
- Department of Pulmonary and Critical Care Medicine, Lu'an People's Hospital of Anhui Province, Lu'an, 237016, People's Republic of China
| | - Guangshu Chen
- Department of Endocrinology, Guangzhou Red Cross Hospital, The Affiliated Hospital of Jinan University, Guangzhou, 510220, People's Republic of China
| | - Jiaxin Lin
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Zhefan Xie
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Tingting Xia
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Wenzhi Luo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Xingdong Cai
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Shengming Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
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10
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Fandiño-Del-Rio M, Kephart JL, Williams KN, Malpartida G, Barr DB, Steenland K, Koehler K, Checkley W. Household air pollution and blood markers of inflammation: A cross-sectional analysis. INDOOR AIR 2021; 31:1509-1521. [PMID: 33749948 PMCID: PMC8380676 DOI: 10.1111/ina.12814] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/19/2021] [Indexed: 05/08/2023]
Abstract
Household air pollution (HAP) from biomass stoves is a leading risk factor for cardiopulmonary outcomes; however, its toxicity pathways and relationship with inflammation markers are poorly understood. Among 180 adult women in rural Peru, we examined the cross-sectional exposure-response relationship between biomass HAP and markers of inflammation in blood using baseline measurements from a randomized trial. We measured markers of inflammation (CRP, IL-6, IL-10, IL-1β, and TNF-α) with dried blood spots, 48-h kitchen area concentrations and personal exposures to fine particulate matter (PM2.5 ), black carbon (BC), and carbon monoxide (CO), and 48-h kitchen concentrations of nitrogen dioxide (NO2 ) in a subset of 97 participants. We conducted an exposure-response analysis between quintiles of HAP levels and markers of inflammation. Markers of inflammation were more strongly associated with kitchen area concentrations of BC than PM2.5 . As expected, kitchen area BC concentrations were positively associated with TNF-α (pro-inflammatory) concentrations and negatively associated with IL-10, an anti-inflammatory marker, controlling for confounders in single- and multi-pollutant models. However, contrary to expectations, kitchen area BC and NO2 concentrations were negatively associated with IL-1β, a pro-inflammatory marker. No associations were identified for IL-6 or CRP, or for any marker in relation to personal exposures.
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Affiliation(s)
- Magdalena Fandiño-Del-Rio
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, MD, USA
| | - Josiah L. Kephart
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, MD, USA
| | - Kendra N. Williams
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, MD, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Gary Malpartida
- Molecular Biology and Immunology Laboratory, Research Laboratory of Infectious Diseases, Department of Cell and Molecular Sciences, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Peru
- Biomedical Research Unit, Asociación Benéfica PRISMA, Lima, Perú
| | - Dana Boyd Barr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kyle Steenland
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Kirsten Koehler
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - William Checkley
- Center for Global Non-Communicable Disease Research and Training, Johns Hopkins University, Baltimore, MD, USA
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
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11
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Shupler M, Mwitari J, Gohole A, Anderson de Cuevas R, Puzzolo E, Čukić I, Nix E, Pope D. COVID-19 impacts on household energy & food security in a Kenyan informal settlement: The need for integrated approaches to the SDGs. RENEWABLE & SUSTAINABLE ENERGY REVIEWS 2021. [PMID: 34276242 DOI: 10.1101/2020.05.27.20115113v1.full.pdf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
This longitudinal study presents the joint effects of a COVID-19 community lockdown on household energy and food security in an informal settlement in Nairobi, Kenya. Randomly administered surveys were completed from December 2019-March 2020 before community lockdown (n = 474) and repeated in April 2020 during lockdown (n = 194). Nearly universal (95%) income decline occurred during the lockdown and led to 88% of households reporting food insecurity. During lockdown, a quarter of households (n = 17) using liquefied petroleum gas (LPG), a cleaner cooking fuel typically available in pre-set quantities (e.g. 6 kg cylinders), switched to polluting cooking fuels (kerosene, wood), which could be purchased in smaller amounts or gathered for free. Household size increases during lockdown also led to participants' altering their cooking fuel, and changing their cooking behaviors and foods consumed. Further, households more likely to switch away from LPG had lower consumption prior to lockdown and had suffered greater income loss, compared with households that continued to use LPG. Thus, inequities in clean cooking fuel access may have been exacerbated by COVID-19 lockdown. These findings demonstrate the complex relationship between household demographics, financial strain, diet and cooking patterns, and present the opportunity for a food-energy nexus approach to address multiple Sustainable Development Goals (SDGs): achieving zero hunger (SDG 2) and universal affordable, modern and clean energy access (SDG 7) by 2030. Ensuring that LPG is affordable, accessible and meets the dietary and cooking needs of families should be a policy priority for helping improve food and energy security among the urban poor.
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Affiliation(s)
- Matthew Shupler
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - James Mwitari
- School of Public Health, Amref International University, Nairobi, Kenya
| | - Arthur Gohole
- School of Public Health, Amref International University, Nairobi, Kenya
| | | | - Elisa Puzzolo
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
- Global LPG Partnership (GLPGP), 654 Madison Avenue, New York, United States
| | - Iva Čukić
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - Emily Nix
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - Daniel Pope
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
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12
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Shupler M, Mwitari J, Gohole A, Anderson de Cuevas R, Puzzolo E, Čukić I, Nix E, Pope D. COVID-19 impacts on household energy & food security in a Kenyan informal settlement: The need for integrated approaches to the SDGs. RENEWABLE & SUSTAINABLE ENERGY REVIEWS 2021; 144:None. [PMID: 34276242 PMCID: PMC8262075 DOI: 10.1016/j.rser.2021.111018] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 02/13/2021] [Accepted: 03/21/2021] [Indexed: 05/12/2023]
Abstract
This longitudinal study presents the joint effects of a COVID-19 community lockdown on household energy and food security in an informal settlement in Nairobi, Kenya. Randomly administered surveys were completed from December 2019-March 2020 before community lockdown (n = 474) and repeated in April 2020 during lockdown (n = 194). Nearly universal (95%) income decline occurred during the lockdown and led to 88% of households reporting food insecurity. During lockdown, a quarter of households (n = 17) using liquefied petroleum gas (LPG), a cleaner cooking fuel typically available in pre-set quantities (e.g. 6 kg cylinders), switched to polluting cooking fuels (kerosene, wood), which could be purchased in smaller amounts or gathered for free. Household size increases during lockdown also led to participants' altering their cooking fuel, and changing their cooking behaviors and foods consumed. Further, households more likely to switch away from LPG had lower consumption prior to lockdown and had suffered greater income loss, compared with households that continued to use LPG. Thus, inequities in clean cooking fuel access may have been exacerbated by COVID-19 lockdown. These findings demonstrate the complex relationship between household demographics, financial strain, diet and cooking patterns, and present the opportunity for a food-energy nexus approach to address multiple Sustainable Development Goals (SDGs): achieving zero hunger (SDG 2) and universal affordable, modern and clean energy access (SDG 7) by 2030. Ensuring that LPG is affordable, accessible and meets the dietary and cooking needs of families should be a policy priority for helping improve food and energy security among the urban poor.
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Affiliation(s)
- Matthew Shupler
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - James Mwitari
- School of Public Health, Amref International University, Nairobi, Kenya
| | - Arthur Gohole
- School of Public Health, Amref International University, Nairobi, Kenya
| | | | - Elisa Puzzolo
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
- Global LPG Partnership (GLPGP), 654 Madison Avenue, New York, United States
| | - Iva Čukić
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - Emily Nix
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
| | - Daniel Pope
- Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, United Kingdom
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13
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Feng R, Xu H, He K, Wang Z, Han B, Lei R, Ho KF, Niu X, Sun J, Zhang B, Liu P, Shen Z. Effects of domestic solid fuel combustion emissions on the biomarkers of homemakers in rural areas of the Fenwei Plain, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 214:112104. [PMID: 33677381 DOI: 10.1016/j.ecoenv.2021.112104] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 02/24/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND The health effects of heavy solid fuel use in winter in rural China are of concern. The effects of air pollution resulting from domestic solid fuel combustion in rural households on rural homemakers' biomarkers were revealed in this study. METHODS In total, 75 female homemakers from rural areas of Guanzhong Basin, the Fenwei Plain, People's Republic of China, were randomly selected and divided into three groups (biomass users, coal users, and nonusers of solid fuel user [control group]). The differences in biological indicators, including 8-hydrox-2'-deoxyguanosine (8-OHdG), interlukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) in urine samples as well as blood pressure (BP, including systolic BP [SBP] and diastolic BP [DBP]) and heart rate (HR) among the groups in winter and summer were investigated using statistical analysis. RESULTS IL-6, 8-OHdG, HR, SBP, and DBP were significantly higher in winter than in summer (P < 0.05) owing to the poor air quality resulted from the excessive use of solid fuels in winter. Significant seasonal differences in 8-OHdG were observed for both coal and biomass users. After the influence of confounders was removed, only IL-6 levels in the urine of solid fuel users were significantly higher than that of the control group. CONCLUSIONS IL-6 is a sensitive biomarker representing inflammatory responses to particulate matter emitted through household solid fuel combustion. Locally, excessive use of solid fuels in winter posed serious PM2.5 pollution in this area and adverse effects on inflammatory biomarkers in these rural homemakers and induced DNA damage related to oxidative stress.
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Affiliation(s)
- Rong Feng
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Hongmei Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China.
| | - Kailai He
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Zexuan Wang
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Bei Han
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Ronghui Lei
- School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, China
| | - Kin Fai Ho
- JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Xinyi Niu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Jian Sun
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Bin Zhang
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Pingping Liu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Zhenxing Shen
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
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14
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Inflammatory Biomarkers Interleukin 1 Beta (IL-1β) and Tumour Necrosis Factor Alpha (TNF-α) Are Differentially Elevated in Tobacco Smoke Associated COPD and Biomass Smoke Associated COPD. TOXICS 2021; 9:toxics9040072. [PMID: 33915841 PMCID: PMC8066753 DOI: 10.3390/toxics9040072] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 12/03/2022]
Abstract
Chronic obstructive pulmonary disease (COPD), the leading cause of mortality and morbidity worldwide, is characterized by abnormal activation of inflammatory cells. The increased pro-inflammatory cytokines, such as tumour necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β), further amplify the inflammation. We evaluated the dose response relationship of IL-1β and TNF-α levels and severity of airflow limitation, and differential responses in IL-1β and TNF-α between biomass COPD (BMS-COPD) and tobacco smoke COPD (TS-COPD) using a case control design in 160 subjects. Patients with COPD had higher serum levels of both IL-1β and TNF-α compared to healthy controls. A large difference in TNF-α was observed between TS-COPD and BMS-COPD, where TS-COPD patients had much higher levels. Serum IL-1β levels were higher in BMS-COPD. Levels of IL-1β correlated better with severity of airflow limitation than TNF-α levels. Both TNF-α and IL-1β levels had a negative linear relationship with Forced Expiratory Volume in 1st second (FEV1) and six-minute walk distance. The correlations were stronger with FEV1 than six-minute walk distance. The correlations of TNF-α and IL-1β with St George Respiratory Questionnaire (SGRQ) scores and body mass index (BMI) were not significant. In conclusion, the levels of pro-inflammatory cytokines TNF-α and IL-1β are differently elevated in TS-COPD and BMS-COPD, respectively.
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15
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Xia Y, Zhang H, Cao L, Zhao Y. Household solid fuel use and peak expiratory flow in middle-aged and older adults in China: A large cohort study (2011-2015). ENVIRONMENTAL RESEARCH 2021; 193:110566. [PMID: 33278475 DOI: 10.1016/j.envres.2020.110566] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/29/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
Indoor air pollution caused by solid fuel use in cooking and heating in China is common. The relationship between household solid fuel use and peak expiratory flow (PEF) in middle-aged and older adults in China has not been clarified. The aim of this study was to assess the relationship between long-term household solid fuel use (clean for both cooking and heating, solid for either cooking or heating, and solid for both cooking and heating) and PEF changes in middle-aged and older adults using a nationally representative prospective cohort. Covariance analysis was used to compare PEF changes in different indoor air pollution exposure groups. Separate analysis of cooking and heating as well as sub-group analyses by age, sex and smoking status were conducted, linear mixed growth model analysis was used to evaluate the association between cooking fuel type and PEF. A total of 6818 participants were enrolled in the cohort analysis. Results revealed that solid fuel use in cooking and heating separately or conjointly were associated with reduced PEF (solid fuel use in cooking: least square mean [LSM] = 19.9, 95% confidence interval [CI]: 11.5-28.2, P = 0.03; solid fuel use in heating: LSM = 19.4, 95% CI:11.2-27.5, P = 0.04; both solid fuel use: LSM = 17.6, 95% CI: 9.3-25.9, P for trend <0.0001), especially in participants aged >65 years (LSM = -9.22, 95% CI: 27.9-69.52, P for trend <0.0001), females (LSM = -6.41, 95% CI: 19.12-6.30, P for trend <0.0001) and current or former smokers (LSM = -21.55, 95% CI: 36.14 to -6.97, P < 0.02). Compared to that of participants using clean fuels for cooking, PEF of participants using solid fuels were decreased by 3.5 l/min per 2 years over a 4-year follow-up. This cohort study highlights the adverse effects of indoor air pollution on lung function in middle aged and older adults in China.
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Affiliation(s)
- Yang Xia
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Heping District, Sanhao Street, No. 36, Shenyang, Liaoning province, 110004, China
| | - Hehua Zhang
- Clinical Research Center, Shengjing Hospital of China Medical University, Heping District, Sanhao Street, No. 36, Shenyang City, Liaoning province, 110004, China
| | - Limin Cao
- The Third Central Hospital of Tianjin, Hedong District, Jintang Road, No. 83, Tianjin, 300170, China
| | - Yuhong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Heping District, Sanhao Street, No. 36, Shenyang, Liaoning province, 110004, China; Clinical Research Center, Shengjing Hospital of China Medical University, Heping District, Sanhao Street, No. 36, Shenyang City, Liaoning province, 110004, China.
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16
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Cunalata-Paredes AV, Gea-Izquierdo E. COPD in the major nonsmoking adult: A systematic review and meta-analysis. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2020; 76:319-329. [PMID: 33021899 DOI: 10.1080/19338244.2020.1828243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chronic Obstructive Pulmonary Disease (COPD) main cause is attributed to active smokers, but there's a small percentage that comes from risk factors that have been less considered. The aim of this research was to identify the risk factors and the clinical presentation of the population over 64 years of age that lead to the development of COPD. A systematic review and a meta-analysis was performed. From the 92 studies interpreted, we identified seven studies on the presence of COPD in nonsmokers older adults, having a universe of 14,920 patients. The primary risk factor to trigger the development of COPD was secondhand smoking. The study defined the most common risk factors that currently trigger COPD development among nonsmokers and provided an insight into the potential clinical differences between nonsmokers and smokers.
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Affiliation(s)
| | - Enrique Gea-Izquierdo
- Faculty of Medicine, Pontifical Catholic University of Ecuador, Quito, Ecuador
- Chair of Health and Safety at Work, Occupational Risk Prevention, University of Malaga, Malaga, Spain
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17
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Mohd Isa KN, Hashim Z, Jalaludin J, Lung Than LT, Hashim JH. The Effects of Indoor Pollutants Exposure on Allergy and Lung Inflammation: An Activation State of Neutrophils and Eosinophils in Sputum. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5413. [PMID: 32731346 PMCID: PMC7432088 DOI: 10.3390/ijerph17155413] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/12/2020] [Accepted: 06/22/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND To explore the inflammation phenotypes following indoor pollutants exposure based on marker expression on eosinophils and neutrophils with the application of chemometric analysis approaches. METHODS A cross-sectional study was undertaken among secondary school students in eight suburban and urban schools in the district of Hulu Langat, Selangor, Malaysia. The survey was completed by 96 students at the age of 14 by using the International Study of Asthma and Allergies in Children (ISAAC) and European Community Respiratory Health Survey (ECRHS) questionnaires. The fractional exhaled nitric oxide (FeNO) was measured, and an allergic skin prick test and sputum induction were performed for all students. Induced sputum samples were analysed for the expression of CD11b, CD35, CD63, and CD66b on eosinophils and neutrophils by flow cytometry. The particulate matter (PM2.5 and PM10), NO2, CO2, and formaldehyde were measured inside the classrooms. RESULTS Chemometric and regression results have clustered the expression of CD63 with PM2.5, CD11b with NO2, CD66b with FeNO levels, and CO2 with eosinophils, with the prediction accuracy of the models being 71.88%, 76.04%, and 76.04%, respectively. Meanwhile, for neutrophils, the CD63 and CD66b clustering with PM2.5 and CD11b with FeNO levels showed a model prediction accuracy of 72.92% and 71.88%, respectively. CONCLUSION The findings indicated that the exposure to PM2.5 and NO2 was likely associated with the degranulation of eosinophils and neutrophils, following the activation mechanisms that led to the inflammatory reactions.
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Affiliation(s)
- Khairul Nizam Mohd Isa
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (K.N.M.I.); (J.J.)
- Environmental Health Research Cluster (EHRc), Environmental Healthcare Section, Institute of Medical Science Technology, Universiti Kuala Lumpur, Kajang 43000, Selangor, Malaysia
| | - Zailina Hashim
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (K.N.M.I.); (J.J.)
| | - Juliana Jalaludin
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (K.N.M.I.); (J.J.)
| | - Leslie Thian Lung Than
- Department of Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia;
| | - Jamal Hisham Hashim
- IIGH United Nations University, UKM Medical Centre, Cheras 56000, Kuala Lumpur, Malaysia;
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18
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Pial RH, Hashan MR, Ghozy S, Dibas M, El-Qushayri AE, Abdel-Daim MM. Comparative study on respiratory function among rural women using biomass fuel and non-biomass fuel: evidence of a cross-sectional survey in Bangladesh. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24039-24047. [PMID: 32304053 DOI: 10.1007/s11356-020-08668-6] [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: 12/11/2019] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Respiratory diseases' mortality and morbidity have been a major public health burden primarily attributed to widespread exposure to indoor and outdoor pollutants in the environment. The study conducted among 510 Bangladeshi women residing in the northeastern zone of the Sylhet division from semi-urban and rural settings to compare the biomass fuel users (N = 255) with the non-biomass users (N = 255). It has been observed that all the symptoms had a higher prevalence among the women who were exposed to biomass fuel compared with those exposed to clean gas fuel. Women exposed to biomass group reported frequent cough and phlegm production episodes during a 3-month timeline before the survey period which was found statistically higher (p < 0.001) compared with that of the clean gas fuel group. Moreover, the use of biomass fuel has been associated with a significant decrease in forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and peak expiratory flow rate (PEFR). Appropriate strategies from stakeholders and government authorities in disseminating health hazards from biomass fuel along with supporting the community by providing alternative energy sources for cooking can largely impact people's lives.
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Affiliation(s)
- Rejwana Haque Pial
- Department of Occupational and Environmental Health, National Institute of Preventive and Social Medicine, Mohakhali, Dhaka, Bangladesh
| | - Mohammad Rashidul Hashan
- Respiratory and Enteric Infections Department, Infectious Disease Division, International Centre for Diarrheal Disease Research, 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Sherief Ghozy
- Faculty of Medicine, Mansoura University, Mansoura, Egypt.
- Neurosurgery Department, El Sheikh Zayed Specialized Hospital, Giza, Egypt.
| | - Mahmoud Dibas
- Global Medical Research Initiative, Al Bukayriyah, Qassim, Saudi Arabia
| | | | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia.
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt.
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Acute coronary syndrome and use of biomass fuel among women in rural Pakistan: a case–control study. Int J Public Health 2020; 65:149-157. [DOI: 10.1007/s00038-020-01339-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 01/10/2023] Open
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Fernandes L, Rane S, Mandrekar S, Mesquita AM. Eosinophilic Airway Inflammation in Patients with Stable Biomass Smoke- versus Tobacco Smoke-Associated Chronic Obstructive Pulmonary Disease. J Health Pollut 2019; 9:191209. [PMID: 31893170 PMCID: PMC6905135 DOI: 10.5696/2156-9614-9.24.191209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 09/30/2019] [Indexed: 05/11/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is an inflammatory disease with predominant involvement of neutrophils, macrophages and CD8+ lymphocytes. Eosinophilic airway inflammations are reported in stable state and during acute exacerbations of tobacco smoke-associated COPD (TS-COPD). Women exposed to biomass fuel smoke are known to have eosinophils in sputum. However, little is known about the sputum cellular inflammatory profile in biomass fuel smoke-associated COPD (BMS-COPD). We therefore aimed to compare the sputum cellular inflammatory profile in tobacco smoke- and biomass smoke-associated COPD. METHODS The study was conducted in a tertiary care hospital in Goa, India. A total of 113 patients with stable COPD reporting to the outpatient pulmonary clinic were recruited. All participants were ≥ 40 years of age. Sputum induction studies were performed by the method of Pizzichini et al. after baseline subject characterization. Significant eosinophilia was defined as induced sputum eosinophils ≥ 3%. RESULTS There were 85 TS-COPD and 28 BMS-COPD patients. The mean age [standard deviation (SD)] was 64.7 (7.8) and 63.0 years (8.3), p = 0.32 in TS and BMS-COPD, respectively. Eighteen subjects (21.1%) were female smokers. The smoking pack-year median [interquartile range (IQR)] was 36 (20, 58) and hour-years of biomass smoke exposure mean (SD) was 192.4 (61). The TS-COPD and BMS-COPD cases showed a post-bronchodilator forced expiratory volume in one second (FEV1%) mean (SD) of 57.9 (17.1), and 62.6 (19.4), p= 0.22, respectively. Both groups had similar symptoms and severity of disease. Induced sputum total cell count per gram of sputum × 106 mean (SD) was 3.05 (1.53) for TS-COPD, and 2.55(1.37) for BMS-COPD p=0.12. The neutrophils % mean (SD) was 86.4 (16.5) and 87.9 (10.2), p = 0.64; eosinophils % median (IQR) was 2.5 (1, 10) and 8 (2, 12.8), p = 0.07; lymphocytes % median (IQR) was 0 (0, 0.75) and 0 (0, 1) p = 0.13; macrophages % median (IQR) was 2.5 (0.75, 5.7) and 1 (0, 4.7) p = 0.13; and significant eosinophilia (eosinophils ≥3%) was 42 (49.4%) and 20 (71%), p=0.04, for TS-COPD and BMS-COPD, respectively. CONCLUSIONS For similar severity of disease and clinical symptoms, significant eosinophilic inflammation was observed in stable BMS-COPD, while both groups had similar neutrophilic inflammation. PARTICIPANT CONSENT Obtained. ETHICS APPROVAL The study was approved by the Institutional Ethics Committee of the Goa Medical College, Goa, India. COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Lalita Fernandes
- Department of Pulmonary Medicine, Goa Medical College, Goa, India
| | - Shraddha Rane
- Department of Pulmonary Medicine, Goa Medical College, Goa, India
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Zhu S, Gong L, Li Y, Xu H, Gu Z, Zhao Y. Safety Assessment of Nanomaterials to Eyes: An Important but Neglected Issue. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1802289. [PMID: 31453052 PMCID: PMC6702629 DOI: 10.1002/advs.201802289] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 05/28/2019] [Indexed: 05/19/2023]
Abstract
The production and application of nanomaterials have grown tremendously during last few decades. The widespread exposure of nanoparticles to the public is provoking great concerns regarding their toxicity to the human body. However, in comparison with the extensive studies carried out to examine nanoparticle toxicity to the human body/organs, one especially vulnerable organ, the eye, is always neglected. Although it is a small part of the body, 90% of outside information is obtained via the ocular system. In addition, eyes usually directly interact with the surrounding environment, which may get severer damage from toxic nanoparticles compared to inner organs. Therefore, the study of assessing the potential nanoparticle toxicity to the eyes is of great importance. Here, the recent advance of some representative manufactured nanomaterials on ocular toxicity is summarized. First, a brief introduction of ocular anatomy and disorders related to particulate matter exposure is presented. Following, the factors that may influence toxicity of nanoparticles to the eye are emphasized. Next, the studies of representative manufactured nanoparticles on eye toxicity are summarized and classified. Finally, the limitations that are associated with current nanoparticle-eye toxicity research are proposed.
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Affiliation(s)
- Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
| | - Linji Gong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Yijian Li
- Southwest Eye HospitalSouthwest HospitalThird Military Medical University (Army Medical University)Chongqing400038China
| | - Haiwei Xu
- Southwest Eye HospitalSouthwest HospitalThird Military Medical University (Army Medical University)Chongqing400038China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing100049China
- College of Materials Science and Optoelectronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
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22
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Yin Y, Wang Z, Wang S, Pu J. Cellulose‐based formaldehyde adsorbents with large capacities: Efficient use of polyethylenimine for graphene oxide stabilization in alkaline–urea system. J Appl Polym Sci 2019. [DOI: 10.1002/app.47860] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yihui Yin
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Material Science and TechnologyBeijing Forestry University Beijing 100083 China
| | - Zhenxing Wang
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Material Science and TechnologyBeijing Forestry University Beijing 100083 China
| | - Sijie Wang
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Material Science and TechnologyBeijing Forestry University Beijing 100083 China
| | - Junwen Pu
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Material Science and TechnologyBeijing Forestry University Beijing 100083 China
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Kc R, Shukla SD, Gautam SS, Hansbro PM, O'Toole RF. The role of environmental exposure to non-cigarette smoke in lung disease. Clin Transl Med 2018; 7:39. [PMID: 30515602 PMCID: PMC6279673 DOI: 10.1186/s40169-018-0217-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 11/23/2018] [Indexed: 02/03/2023] Open
Abstract
Chronic exposure to household indoor smoke and outdoor air pollution is a major contributor to global morbidity and mortality. The majority of these deaths occur in low and middle-income countries. Children, women, the elderly and people with underlying chronic conditions are most affected. In addition to reduced lung function, children exposed to biomass smoke have an increased risk of developing lower respiratory tract infections and asthma-related symptoms. In adults, chronic exposure to biomass smoke, ambient air pollution, and opportunistic exposure to fumes and dust are associated with an increased risk of developing chronic bronchitis, chronic obstructive pulmonary disease (COPD), lung cancer and respiratory infections, including tuberculosis. Here, we review the evidence of prevalence of COPD in people exposed to non-cigarette smoke. We highlight mechanisms that are likely involved in biomass-smoke exposure-related COPD and other lung diseases. Finally, we summarize the potential preventive and therapeutic strategies for management of COPD induced by non-cigarette smoke exposure.
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Affiliation(s)
- Rajendra Kc
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Shakti D Shukla
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, Australia
| | - Sanjay S Gautam
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, Australia
- Centenary Institute and University of Technology Sydney, Sydney, New South Wales, Australia
| | - Ronan F O'Toole
- School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia.
- Department of Clinical Microbiology, School of Medicine, Trinity College Dublin, Dublin, Ireland.
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Misra A, Longnecker MP, Dionisio KL, Bornman RMS, Travlos GS, Brar S, Whitworth KW. Household fuel use and biomarkers of inflammation and respiratory illness among rural South African Women. ENVIRONMENTAL RESEARCH 2018; 166:112-116. [PMID: 29885612 PMCID: PMC6110960 DOI: 10.1016/j.envres.2018.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 04/16/2018] [Accepted: 05/12/2018] [Indexed: 05/24/2023]
Abstract
Though literature suggests a positive association between use of biomass fuel for cooking and inflammation, few studies among women in rural South Africa exist. We included 415 women from the South African Study of Women and Babies (SOWB), recruited from 2010 to 2011. We obtained demographics, general medical history and usual source of cooking fuel (wood, electricity) via baseline questionnaire. A nurse obtained height, weight, blood pressure, and blood samples. We measured plasma concentrations of a suite of inflammatory markers (e.g., interleukins, tumor necrosis factor-α, C-reactive protein). We assessed associations between cooking fuel and biomarkers of inflammation and respiratory symptoms/illness using crude and adjusted linear and logistic regression models. We found little evidence of an association between fuel-use and biomarkers of inflammation, pre-hypertension/hypertension, or respiratory illnesses. Though imprecise, we found 41% (95% confidence interval (CI) = 0.72-2.77) higher odds of self-reported wheezing/chest tightness among wood-users compared with electricity-users. Though studies among other populations report positive findings between biomass fuel use and inflammation, it is possible that women in the present study experience lower exposures to household air pollution given the cleaner burning nature of wood compared with other biomass fuels (e.g., coal, dung).
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Affiliation(s)
- Ankita Misra
- Department of Epidemiology, Human Genetics and Environmental Sciences, UTHealth School of Public Health in San Antonio, San Antonio, TX, USA
| | - Matthew P Longnecker
- Epidemiology Branch, National Institute for Environmental Health Sciences, National Institutes of Health, DHHS, Research Triangle Park, NC, USA
| | - Kathie L Dionisio
- National Exposure Research Laboratory, Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Riana M S Bornman
- Department of Urology, University of Pretoria, Pretoria, South Africa; Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, NC, USA; The University of Pretoria Centre for Sustainable Malaria Control, University of Pretoria, Pretoria, South Africa
| | - Gregory S Travlos
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, NC, USA
| | - Sukhdev Brar
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, NC, USA
| | - Kristina W Whitworth
- Department of Epidemiology, Human Genetics and Environmental Sciences, UTHealth School of Public Health in San Antonio, San Antonio, TX, USA; Southwest Center for Occupational and Environmental Health, UTHealth School of Public Health, Houston, TX, USA.
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Rabha R, Ghosh S, Padhy PK. Effects of biomass burning on pulmonary functions in tribal women in northeastern India. Women Health 2018; 59:229-239. [PMID: 30067466 DOI: 10.1080/03630242.2018.1452834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Wood smoke causes adverse effects on pulmonary function (PF) in women in developing countries. This study compared PF among rural tribal women in northeastern India among 266 wood users and 82 liquefied petroleum gas (LPG) users, all healthy nonsmoking women from April to July, 2014. PF measurements included FVC, FEV1, FEV1/FVC, PEF, and FEF25-75%. Information on participants' health status, demographic, and socioeconomic characteristics were collected by questionnaire. Multiple linear regressions were performed to compare PF between the two groups, adjusting for potential confounders. Wood users had significantly lower pulmonary values than LPG users: FVC (2.65 vs. 2.85 L, p < .001), FEV1 (1.46 vs. 1.92 L, p < .001), PEF (1.89 vs. 2.56 L/s, p < .001), and FEF25-75% (1.12 vs. 1.68 L/s, p < .001) except for FEV1/FVC (76.5 vs. 75.5 percent, p = .27). Wood use was associated with 7 percent lower FVC, 24 percent lower FEV1, 1.3 percent lower FEV1/FVC, 26 percent lower PEF, and 33 percent lower FEEF25-75% compared to LPG use. Wood use was associated with a 0.27-L decrease in FEV1, adjusted for covariates. Women cooking with wood had lower PF and more respiratory symptoms and gastritis than those using LPG. Thus, reducing indoor air pollution from biomass burning is needed to protect tribal women's health.
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Affiliation(s)
- Rumi Rabha
- a Department of Environmental Studies , Siksha-Bhavana, Visva-Bharati , Santiniketan , India
| | - Suraj Ghosh
- a Department of Environmental Studies , Siksha-Bhavana, Visva-Bharati , Santiniketan , India
| | - Pratap Kumar Padhy
- a Department of Environmental Studies , Siksha-Bhavana, Visva-Bharati , Santiniketan , India
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Nayek S, Padhy PK. Approximation of personal exposure to fine particulate matters (PM 2.5) during cooking using solid biomass fuels in the kitchens of rural West Bengal, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15925-15933. [PMID: 29589238 DOI: 10.1007/s11356-018-1831-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
More than 85% of the rural Indian households use traditional solid biofuels (SBFs) for daily cooking. Burning of the easily available unprocessed solid fuels in inefficient earthen cooking stoves produce large quantities of particulate matters. Smaller particulates, especially with aerodynamic diameter of 2.5 μm or less (PM2.5), largely generated during cooking, are considered to be health damaging in nature. In the present study, kitchen level exposure of women cooks to fine particulate matters during lunch preparation was assessed considering kitchen openness as surrogate to the ventilation condition. Two-way ANCOVA analysis considering meal quantity as a covariate revealed no significant interaction between the openness and the seasons explaining the variability of the personal exposure to the fine particulate matters in rural kitchen during cooking. Multiple linear regression analysis revealed the openness as the only significant predictor for personal exposure to the fine particulate matters. In the present study, the annual average fine particulate matter exposure concentration was found to be 974 μg m-3.
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Affiliation(s)
- Sukanta Nayek
- Department of Environmental Studies, Institute of Science, Visva-Bharati, Santiniketan, Birbhum, West Bengal, 731 235, India
| | - Pratap Kumar Padhy
- Department of Environmental Studies, Institute of Science, Visva-Bharati, Santiniketan, Birbhum, West Bengal, 731 235, India.
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27
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Capistrano SJ, van Reyk D, Chen H, Oliver BG. Evidence of Biomass Smoke Exposure as a Causative Factor for the Development of COPD. TOXICS 2017; 5:E36. [PMID: 29194400 PMCID: PMC5750564 DOI: 10.3390/toxics5040036] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 12/20/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive disease of the lungs characterised by chronic inflammation, obstruction of airways, and destruction of the parenchyma (emphysema). These changes gradually impair lung function and prevent normal breathing. In 2002, COPD was the fifth leading cause of death, and is estimated by the World Health Organisation (WHO) to become the third by 2020. Cigarette smokers are thought to be the most at risk of developing COPD. However, recent studies have shown that people with life-long exposure to biomass smoke are also at high risk of developing COPD. Most common in developing countries, biomass fuels such as wood and coal are used for cooking and heating indoors on a daily basis. Women and children have the highest amounts of exposures and are therefore more likely to develop the disease. Despite epidemiological studies providing evidence of the causative relationship between biomass smoke and COPD, there are still limited mechanistic studies on how biomass smoke causes, and contributes to the progression of COPD. This review will focus upon why biomass fuels are used, and their relationship to COPD. It will also suggest methodological approaches to model biomass exposure in vitro and in vivo.
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Affiliation(s)
- Sarah J Capistrano
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
| | - David van Reyk
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
| | - Hui Chen
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
| | - Brian G Oliver
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia.
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
- Emphysema Center, Woolcock Institute of Medical Research, The University of Sydney, NSW 2037, Australia.
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28
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Siedner MJ. Aging, Health, and Quality of Life for Older People Living With HIV in Sub-Saharan Africa: A Review and Proposed Conceptual Framework. J Aging Health 2017; 31:109-138. [PMID: 28831864 DOI: 10.1177/0898264317724549] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The number of people living with HIV (PLWH) over 50 years old in sub-Saharan Africa is predicted to triple in the coming decades, to 6-10 million. Yet, there is a paucity of data on the determinants of health and quality of life for older PLWH in the region. METHODS A review was undertaken to describe the impact of HIV infection on aging for PLWH in sub-Saharan Africa. RESULTS We (a) summarize the pathophysiology and epidemiology of aging with HIV in resource-rich settings, and (b) describe how these relationships might differ in sub-Saharan Africa, (c) propose a conceptual framework to describe determinants of quality of life for older PLWH, and (d) suggest priority research areas needed to ensure long-term gains in quality of life for PLWH in the region. CONCLUSIONS Differences in traditional, lifestyle, and envirnomental risk factors, as well as unique features of HIV epidemiology and care delivery appear to substantially alter the contribution of HIV to aging in sub-Saharan Africa. Meanwhile, unique preferences and conceptualizations of quality of life will require novel measurement and intervention tools. An expanded research and public health infrastructure is needed to ensure that gains made in HIV prevention and treamtent are translated into long-term benefits in this region.
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Affiliation(s)
- Mark J Siedner
- 1 Harvard Medical School, Boston, MA, USA.,2 Massachusetts General Hospital, Boston, MA, USA.,3 Mbarara University of Science and Technology, Mbarara, Uganda
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29
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Lin N, Mu X, Wang G, Ren Y, Su S, Li Z, Wang B, Tao S. Accumulative effects of indoor air pollution exposure on leukocyte telomere length among non-smokers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 227:1-7. [PMID: 28448823 DOI: 10.1016/j.envpol.2017.04.054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 05/12/2023]
Abstract
Indoor air pollution is an important environmental factor that contributes to the burden of various diseases. Long-term exposure to ambient air pollution is associated with telomere shortening. However, the association between chronic indoor air pollution from household fuel combustion and leukocyte telomere length has not been studied. In our study, 137 cancer-free non-smokers were recruited. Their exposure levels to indoor air pollution from 1985 to 2014 were assessed using a face-to-face interview questionnaire, and leukocyte telomere length (LTL) was measured using a monochrome multiplex quantitative PCR method. Accumulative exposure to solid fuel usage for cooking was negatively correlated with LTL. The LTL of residents who were exposed to solid fuel combustion for three decades (LTL = 0.70 ± 0.17) was significantly shorter than that of other populations. In addition, education and occupation were related to both exposure to solid fuel and LTL. Sociodemographic factors may play a mediating role in the correlation between leukocyte telomere length and environmental exposure to indoor air pollution. In conclusion, long-term exposure to indoor air pollution may cause LTL dysfunction.
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Affiliation(s)
- Nan Lin
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, PR China
| | - Xinlin Mu
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, PR China
| | - Guilian Wang
- Intensive Care Unit, Beijing First Hospital of Integrated Chinese and Western Medicine, Beijing 100026, PR China
| | - Yu'ang Ren
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, PR China
| | - Shu Su
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, PR China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China
| | - Bin Wang
- Institute of Reproductive and Child Health, Peking University, Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing 100191, PR China
| | - Shu Tao
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, PR China.
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Burroughs Peña MS, Velazquez EJ, Rivera JD, Alenezi F, Wong C, Grigsby M, Davila-Roman VG, Gilman RH, Miranda JJ, Checkley W. Biomass fuel smoke exposure was associated with adverse cardiac remodeling and left ventricular dysfunction in Peru. INDOOR AIR 2017; 27:737-745. [PMID: 27990700 PMCID: PMC5489120 DOI: 10.1111/ina.12362] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 12/11/2016] [Indexed: 05/17/2023]
Abstract
While household air pollution from biomass fuel combustion has been linked to cardiovascular disease, the effects on cardiac structure and function have not been well described. We sought to determine the association between biomass fuel smoke exposure and cardiac structure and function by transthoracic echocardiography. We identified a random sample of urban and rural residents living in the high-altitude region of Puno, Peru. Daily biomass fuel use was self-reported. Participants underwent transthoracic echocardiography. Multivariable linear regression was used to examine the relationship of biomass fuel use with echocardiographic measures of cardiac structure and function, adjusting for age, sex, height, body mass index, diabetes, physical activity, and tobacco use. One hundred and eighty-seven participants (80 biomass fuel users and 107 non-users) were included in this analysis (mean age 59 years, 58% women). After adjustment, daily exposure to biomass fuel smoke was associated with increased left ventricular internal diastolic diameter (P=.004), left atrial diameter (P=.03), left atrial area (four-chamber) (P=.004) and (two-chamber) (P=.03), septal E' (P=.006), and lateral E' (P=.04). Exposure to biomass fuel smoke was also associated with worse global longitudinal strain in the two-chamber view (P=.01). Daily biomass fuel use was associated with increased left ventricular size and decreased left ventricular systolic function by global longitudinal strain.
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Affiliation(s)
- M S Burroughs Peña
- Division of Cardiology, Department of Medicine, University of California, San Francisco, CA, USA
| | - E J Velazquez
- Division of Cardiology, Department of Medicine, Duke Clinical Research Institute, Duke University Medical Center, Durham, NC, USA
| | - J D Rivera
- Division of Cardiology, Department of Medicine, Duke Clinical Research Institute, Duke University Medical Center, Durham, NC, USA
| | - F Alenezi
- Division of Cardiology, Department of Medicine, Duke Clinical Research Institute, Duke University Medical Center, Durham, NC, USA
| | - C Wong
- Division of Cardiology, Department of Medicine, University of California, San Francisco, CA, USA
| | - M Grigsby
- Program in Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - V G Davila-Roman
- Division of Cardiology, Department of Medicine, Washington University, St. Louis, MO, USA
| | - R H Gilman
- Program in Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - J J Miranda
- CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - W Checkley
- Program in Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
- CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
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31
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Li C, Zhihong H, Wenlong L, Xiaoyan L, Qing C, Wenzhi L, Siming X, Shengming L. The Nucleotide-Binding Oligomerization Domain-Like Receptor Family Pyrin Domain-Containing 3 Inflammasome Regulates Bronchial Epithelial Cell Injury and Proapoptosis after Exposure to Biomass Fuel Smoke. Am J Respir Cell Mol Biol 2017; 55:815-824. [PMID: 27447246 DOI: 10.1165/rcmb.2016-0051oc] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The number of individuals in the population exposed to biomass fuel smoke (BS) is far greater than the number of cigarette smokers. About 20% of cigarette smokers develop chronic obstructive pulmonary disease (COPD) due to smoke-induced irreversible damage and sustained inflammation of the airway epithelium. However, the role of BS in COPD pathogenesis remains to be elucidated. In this study, we investigated the expression of nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing (NLRP) 3 and caspase-1 in the bronchial epithelium from patients with COPD, and further determined the specific role of the NLRP3 inflammasome in bronchial epithelium injury using two in vitro models (BS and cigarette smoke [CS]) in the human bronchial epithelial (HBE) cell line (16HBE). After exposure to BS and CS, the release of damage-associated molecular patterns, the transcriptional and translational up-regulation of NLRP3, and the activation of caspase-1 were observed in cells at different time points. Because IL-1β secretion was dependent on the NLRP3 inflammasome, we assessed CXCL-8 production in response to smoke. Using a transwell migration assay in which 16HBE cells and human alveolar macrophages were cocultured, we showed that smoke-induced NLRP3 activation in 16HBE cells increased the migration of human alveolar macrophages. When the NLRP3 expression was silenced, the average migration distance of 16HBE was increased in scratch assay, because the activation of NLRP3 induced apoptosis by the p53-Bax mitochondrial pathway in the smoke-induced response. These results demonstrate the importance of the NLRP3 inflammasome in mediating BS- and CS-induced HBE cell damage and proapoptosis.
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Affiliation(s)
- Chen Li
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Huang Zhihong
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Li Wenlong
- 2 Department of Pathology, Sun Yat-Sen University Cancer Center; State Key Laboratory of Oncology in South China, Guangzhou, Guangdong, China; and
| | - Liu Xiaoyan
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Chen Qing
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Luo Wenzhi
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Xie Siming
- 3 Medical College, Jinan University, Guangzhou, Guangdong, China
| | - Liu Shengming
- 1 Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
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McCarthy CE, Duffney PF, Wyatt JD, Thatcher TH, Phipps RP, Sime PJ. Comparison of in vitro toxicological effects of biomass smoke from different sources of animal dung. Toxicol In Vitro 2017; 43:76-86. [PMID: 28572013 DOI: 10.1016/j.tiv.2017.05.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 05/25/2017] [Accepted: 05/28/2017] [Indexed: 01/17/2023]
Abstract
Worldwide, over 4 million premature deaths each year are attributed to the burning of biomass fuels for cooking and heating. Epidemiological studies associate household air pollution with lung diseases, including chronic obstructive pulmonary disease, lung cancer, and respiratory infections. Animal dung, a biomass fuel used by economically vulnerable populations, generates more toxic compounds per mass burned than other biomass fuels. The type of animal dung used varies widely depending on local agro-geography. There are currently neither standardized experimental systems for dung biomass smoke research nor studies assessing the health impacts of different types of dung smoke. Here, we used a novel reproducible exposure system to assess outcomes related to inflammation and respiratory infections in human airway cells exposed to six different types of dung biomass smoke. We report that dung biomass smoke, regardless of species, is pro-inflammatory and activates the aryl hydrocarbon receptor and JNK transcription factors; however, dung smoke also suppresses interferon responses after a challenge with a viral mimetic. These effects are consistent with epidemiological data, and suggest a mechanism by which the combustion of animal dung can directly cause lung diseases, promote increased susceptibility to infection, and contribute to the global health problem of household air pollution.
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Affiliation(s)
- Claire E McCarthy
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Parker F Duffney
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Jeffrey D Wyatt
- Division of Comparative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Thomas H Thatcher
- Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Richard P Phipps
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Patricia J Sime
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States.
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33
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Prasad P, Sinha D. Low-level arsenic causes chronic inflammation and suppresses expression of phagocytic receptors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:11708-11721. [PMID: 28332085 DOI: 10.1007/s11356-017-8744-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/01/2017] [Indexed: 05/14/2023]
Abstract
The impact of chronic low-level groundwater arsenic (As) exposure [in the range above the WHO-recommended limit of 10 μg/L but ≤50 μg/L (permissible limit of As for many Asian countries)] was investigated for cross talk of inflammatory changes and expression of phagocytic receptors of exposed rural women (N, 45) from districts of 24 Parganas (south) and in matched control groups (N, 43) [As ≤10 μg/L] from the same district. Systemic inflammation was evident from the upregulated levels of pro-inflammatory mediators like tumor necrosis factor-α (TNF-α); interleukins (ILs) like IL-6, IL-8, and IL-12; and C-reactive protein (CRP) in the sera and upregulated expression of protein kinase B phosphorylated at ser473 (pAKTser473)/nuclear factor-κB (NF-κB)/TNF-α axis in the leukocytes of exposed women with respect to control. We found that low-dose As exposure apart from inflicting inflammation altered the expression of phagocytic receptors-Fcγ receptors (FcγRs) and complement receptors (CRs). The leukocytes of the low-As-exposed women exhibited suppression of CD64, CD35, and CD11b and increased expression of CD16 with respect to control. Groundwater As showed a negative correlation with CD64 expression on monocytes [Pearson's r, -0.8205; 95% confidence interval (CI), -0.8789 to -0.7379] and granulocytes [r, -0.7635; 95% CI, -0.8388 to -0.6595] and a positive correlation with CD16 on granulocytes [r, 0.8363; 95% CI, 0.7599 to 0.8899]. A negative correlation of groundwater As was also observed with expression of CD35 on granulocytes [r, -0.8780; 95% CI, -0.9185 to -0.8192] and monocytes [r, -0.7778; 95% CI, -0.8490 to -0.6790] and CD11b on monocytes [r, -0.6035; 95% CI, -0.7218 to -0.4511]. Therefore, it may be indicated that chronic low-level As exposure (11-50 μg/L) not only evoked chronic inflammatory changes but also suppressed the expression of FcγRs and CRs in the exposed women. This, in turn, may lead to susceptibility towards pathogenic infections or in long run may even contribute towards chronic inflammatory diseases including cancer.
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Affiliation(s)
- Priyanka Prasad
- Department of Receptor Biology and Tumor Metastasis, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700 026, India
| | - Dona Sinha
- Department of Receptor Biology and Tumor Metastasis, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700 026, India.
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34
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McCarthy CE, Duffney PF, Gelein R, Thatcher TH, Elder A, Phipps RP, Sime PJ. Dung biomass smoke activates inflammatory signaling pathways in human small airway epithelial cells. Am J Physiol Lung Cell Mol Physiol 2016; 311:L1222-L1233. [PMID: 27836898 DOI: 10.1152/ajplung.00183.2016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 11/03/2016] [Indexed: 11/22/2022] Open
Abstract
Animal dung is a biomass fuel burned by vulnerable populations who cannot afford cleaner sources of energy, such as wood and gas, for cooking and heating their homes. Exposure to biomass smoke is the leading environmental risk for mortality, with over 4,000,000 deaths each year worldwide attributed to indoor air pollution from biomass smoke. Biomass smoke inhalation is epidemiologically associated with pulmonary diseases, including chronic obstructive pulmonary disease (COPD), lung cancer, and respiratory infections, especially in low and middle-income countries. Yet, few studies have examined the mechanisms of dung biomass smoke-induced inflammatory responses in human lung cells. Here, we tested the hypothesis that dung biomass smoke causes inflammatory responses in human lung cells through signaling pathways involved in acute and chronic lung inflammation. Primary human small airway epithelial cells (SAECs) were exposed to dung smoke at the air-liquid interface using a newly developed, automated, and reproducible dung biomass smoke generation system. The examination of inflammatory signaling showed that dung biomass smoke increased the production of several proinflammatory cytokines and enzymes in SAECs through activation of the activator protein (AP)-1 and arylhydrocarbon receptor (AhR) but not nuclear factor-κB (NF-κB) pathways. We propose that the inflammatory responses of lung cells exposed to dung biomass smoke contribute to the development of respiratory diseases.
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Affiliation(s)
- Claire E McCarthy
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Parker F Duffney
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Robert Gelein
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Thomas H Thatcher
- Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; and.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Alison Elder
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Richard P Phipps
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; and.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Patricia J Sime
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; .,Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; and.,Lung Biology and Disease Program, University of Rochester, University of Rochester School of Medicine and Dentistry, Rochester, New York
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35
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Caravedo MA, Herrera PM, Mongilardi N, de Ferrari A, Davila-Roman VG, Gilman RH, Wise RA, Miele CH, Miranda JJ, Checkley W. Chronic exposure to biomass fuel smoke and markers of endothelial inflammation. INDOOR AIR 2016; 26:768-75. [PMID: 26476302 PMCID: PMC4935667 DOI: 10.1111/ina.12259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/08/2015] [Indexed: 05/03/2023]
Abstract
Indoor smoke exposure may affect cardiovascular disease (CVD) risk via lung-mediated inflammation, oxidative stress, and endothelial inflammation. We sought to explore the association between indoor smoke exposure from burning biomass fuels and a selected group of markers for endothelial inflammation. We compared serum concentrations of amyloid A protein, E-selectin, soluble intercellular adhesion molecule 1 (ICAM-1) and VCAM-1, von Willebrand factor (vWF), and high-sensitivity C-reactive protein (hs-CRP) in 228 biomass-exposed vs. 228 non-exposed participants living in Puno, Peru. Average age was 56 years (s.d. = 13), average BMI was 26.5 kg/m(2) (s.d. = 4.4), 48% were male, 59.4% completed high school, and 2% reported a physician diagnosis of CVD. In unadjusted analysis, serum levels of soluble ICAM-1 (330 vs. 302 ng/ml; P < 0.001), soluble VCAM-1 (403 vs. 362 ng/ml; P < 0.001), and E-selectin (54.2 vs. 52.7 ng/ml; P = 0.05) were increased in biomass-exposed vs. non-exposed participants, respectively, whereas serum levels of vWF (1148 vs. 1311 mU/ml; P < 0.001) and hs-CRP (2.56 vs. 3.12 mg/l; P < 0.001) were decreased, respectively. In adjusted analyses, chronic exposure to biomass fuels remained positively associated with serum levels of soluble ICAM-1 (P = 0.03) and VCAM-1 (P = 0.05) and E-selectin (P = 0.05), and remained negatively associated with serum levels of vWF (P = 0.02) and hs-CRP (P < 0.001). Daily exposure to biomass fuel smoke was associated with important differences in specific biomarkers of endothelial inflammation and may help explain accelerated atherosclerosis among those who are chronically exposed.
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Affiliation(s)
- M A Caravedo
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - P M Herrera
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - N Mongilardi
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - A de Ferrari
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - V G Davila-Roman
- Cardiovascular Division, Cardiovascular Imaging and Clinical Research Core Laboratory, Washington University School of Medicine, St. Louis, MO, USA
| | - R H Gilman
- Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - R A Wise
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - C H Miele
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - J J Miranda
- CRONICAS Center of Excellence for Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of Medicine, School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - W Checkley
- Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
- Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
- CRONICAS Center of Excellence for Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru.
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36
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Condamine T, Dominguez GA, Youn JI, Kossenkov AV, Mony S, Alicea-Torres K, Tcyganov E, Hashimoto A, Nefedova Y, Lin C, Partlova S, Garfall A, Vogl DT, Xu X, Knight SC, Malietzis G, Lee GH, Eruslanov E, Albelda SM, Wang X, Mehta JL, Bewtra M, Rustgi A, Hockstein N, Witt R, Masters G, Nam B, Smirnov D, Sepulveda MA, Gabrilovich DI. Lectin-type oxidized LDL receptor-1 distinguishes population of human polymorphonuclear myeloid-derived suppressor cells in cancer patients. Sci Immunol 2016; 1. [PMID: 28417112 DOI: 10.1126/sciimmunol.aaf8943] [Citation(s) in RCA: 533] [Impact Index Per Article: 66.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Polymorphonuclear myeloid-derived suppressor cells (PMN-MDSC) are important regulators of immune responses in cancer and have been directly implicated in promotion of tumor progression. However, the heterogeneity of these cells and lack of distinct markers hampers the progress in understanding of the biology and clinical importance of these cells. Using partial enrichment of PMN-MDSC with gradient centrifugation we determined that low density PMN-MDSC and high density neutrophils from the same cancer patients had a distinct gene profile. Most prominent changes were observed in the expression of genes associated with endoplasmic reticulum (ER) stress. Surprisingly, low-density lipoprotein (LDL) was one of the most increased regulators and its receptor oxidized LDL receptor 1 OLR1 was one of the most overexpressed genes in PMN-MDSC. Lectin-type oxidized LDL receptor 1 (LOX-1) encoded by OLR1 was practically undetectable in neutrophils in peripheral blood of healthy donors, whereas 5-15% of total neutrophils in cancer patients and 15-50% of neutrophils in tumor tissues were LOX-1+. In contrast to their LOX-1- counterparts, LOX-1+ neutrophils had gene signature, potent immune suppressive activity, up-regulation of ER stress, and other biochemical characteristics of PMN-MDSC. Moreover, induction of ER stress in neutrophils from healthy donors up-regulated LOX-1 expression and converted these cells to suppressive PMN-MDSC. Thus, we identified a specific marker of human PMN-MDSC associated with ER stress and lipid metabolism, which provides new insight to the biology and potential therapeutic targeting of these cells.
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Affiliation(s)
| | | | - Je-In Youn
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Sridevi Mony
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | | | | | | | - Cindy Lin
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Alfred Garfall
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Dan T Vogl
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Xiaowei Xu
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Stella C Knight
- Antigen Presentation Research Group, Imperial College London, London, UK HA1 3UJ
| | - George Malietzis
- Antigen Presentation Research Group, Imperial College London, London, UK HA1 3UJ.,St. Mark's Hospital, Harrow, UK, HA1 3UJ
| | - Gui Han Lee
- Antigen Presentation Research Group, Imperial College London, London, UK HA1 3UJ.,St. Mark's Hospital, Harrow, UK, HA1 3UJ
| | - Evgeniy Eruslanov
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Steven M Albelda
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Xianwei Wang
- Department of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jawahar L Mehta
- Department of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Meenakshi Bewtra
- Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Anil Rustgi
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, 19104, USA.,Division of Gastroenterology, Departments of Medicine and Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Neil Hockstein
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE 19713, USA
| | - Robert Witt
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE 19713, USA
| | - Gregory Masters
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE 19713, USA
| | - Brian Nam
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE 19713, USA
| | - Denis Smirnov
- Janssen Oncology Therapeutic Area, Janssen Research and Development, LLC, Pharmaceutical Companies of Johnson & Johnson, Spring House, PA, 19477, USA
| | - Manuel A Sepulveda
- Janssen Oncology Therapeutic Area, Janssen Research and Development, LLC, Pharmaceutical Companies of Johnson & Johnson, Spring House, PA, 19477, USA
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37
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Increased risk of cardiovascular disease in premenopausal female ragpickers of Eastern India: involvement of inflammation, oxidative stress, and platelet hyperactivity. Mol Cell Biochem 2016; 419:193-203. [PMID: 27421852 DOI: 10.1007/s11010-016-2773-3] [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: 04/14/2016] [Accepted: 07/09/2016] [Indexed: 12/18/2022]
Abstract
Millions of poor people in the developing world still thrive on ragpicking. In the present study, we have examined whether ragpicking is associated with increased risk of cardiovascular disease. For this, we have enrolled 112 premenopausal female ragpickers (median age 30 years) and 98 age-matched housemaids as control from Kolkata, Eastern India. Venous blood was drawn for routine hematology; flow cytometry was used to measure generation of reactive oxygen species (ROS) by leukocytes, surface expression of CD62P (P-selectin) in platelets and CD11b in leukocytes. Collagen-induced platelet aggregation was evaluated by aggregometer, and erythrocytic superoxide dismutase (SOD) was measured by spectrophotometry. Soluble P-selectin (sP-sel) and CD40L (sCD40L), neutrophil-activating protein-2 (NAP-2), platelet and plasma serotonin, oxidized low-density lipoprotein (oxLDL), and anticardiolipin antibodies (aCL) in plasma were measured by ELISA. Compared with control, the ragpickers had significantly higher prevalence of hypertension and prehypertension, and hypertension was positively associated with ragpicking. The ragpickers also had higher levels of inflammation (elevated NAP-2), oxidative stress (elevated ROS generation with depleted SOD) with oxLDL, platelet activation and aggregability, soluble CD40 ligand, with altered serotonin level (rose in plasma but depleted in platelet). A greater percentage of ragpickers had elevated serum level of aCL of the IgG and IgM isotypes than the controls. The results suggest that the occupation of ragpicking increases the risk of cardiovascular diseases in premenopausal women of Eastern India via inflammation, oxidative stress, platelet hyperactivity, and hypertension.
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38
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Fatmi Z, Coggon D. Coronary heart disease and household air pollution from use of solid fuel: a systematic review. Br Med Bull 2016; 118:91-109. [PMID: 27151956 PMCID: PMC4973663 DOI: 10.1093/bmb/ldw015] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/23/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Evidence is emerging that indoor air pollution (IAP) from use of solid fuels for cooking and heating may be an important risk factor for coronary heart disease (CHD). SOURCES OF DATA We searched the Ovid Medline, Embase Classic, Embase and Web of Science databases from inception through to June 12, 2015, to identify reports of primary epidemiological research concerning the relationship of CHD to IAP from solid fuel, the likely magnitude of any increase in risk, and potential pathogenic mechanisms. AREAS OF AGREEMENT The current balance of epidemiological evidence points to an increased risk of CHD from IAP as a consequence of using solid, and especially biomass, fuels for cooking and heating. Relative risks from long-term exposure could be 2- to 4-fold. AREAS OF CONTROVERSY The evidence base is still limited, and although an association of CHD with such IAP from solid fuel is consistent with the known hazards from smoking, environmental tobacco smoke and ambient air pollution, and supported by evidence of effects on inflammatory processes, atherosclerosis and blood pressure, it requires confirmation by larger and more robust studies. GROWING POINTS The completion of two relatively small case-control studies on CHD and IAP from use of biomass fuel demonstrates the feasibility of such research, and is an encouragement to further, larger studies using similar methods. AREAS TIMELY FOR DEVELOPING RESEARCH The need for such research is particularly pressing because the incidence of CHD in developing countries is rising, and IAP may interact synergistically with the risk factors that are driving that increase. Furthermore, relatively cheap methods are available to reduce IAP from use of solid fuels, and there are indications from intervention studies that these may impact beneficially on CHD as well as other diseases caused by such pollution.
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Affiliation(s)
- Zafar Fatmi
- Department of Community Health Sciences, Aga Khan University, Karachi, Sindh, Pakistan MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - David Coggon
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
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Olloquequi J, Silva O R. Biomass smoke as a risk factor for chronic obstructive pulmonary disease: effects on innate immunity. Innate Immun 2016; 22:373-81. [PMID: 27226464 DOI: 10.1177/1753425916650272] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 04/24/2016] [Indexed: 11/15/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD), a major cause of mortality and morbidity worldwide, is considered an archetypical disease of innate immunity, where inhaled particles and gases trigger an inflammatory response, favoring tissue proliferation in small airways and tissue destruction in lung parenchyma, in addition to the recruitment of immune cells to these compartments. Although cigarette smoking is still considered the main risk factor for developing COPD, the trend of proposing biomass smoke (BS) exposure as a principal risk factor is gaining importance, as around 3 billion people worldwide are exposed to this pollutant daily. A considerable amount of evidence has shown the potential of BS as an enhancer of lung inflammation. However, an impairment of some innate immune responses after BS exposure has also been described. Regarding the mechanisms by which biomass smoke alters the innate immune responses, three main classes of cell surface receptors-the TLRs, the scavenger receptors and the transient receptor potential channels-have shown the ability to transduce signals initiated after BS exposure. This article is an updated and comprehensive review of the immunomodulatory effects described after the interaction of BS components with these receptors.
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Affiliation(s)
- Jordi Olloquequi
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Rafael Silva O
- Unidad de Enfermedades Respiratorias, Hospital Regional de Talca, Región del Maule, Chile
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40
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Comparison of intraplatelet reactive oxygen species, mitochondrial damage, and platelet apoptosis after implantation of three continuous flow left ventricular assist devices: HeartMate II, Jarvik 2000, and HeartWare. ASAIO J 2016; 61:244-52. [PMID: 25757140 DOI: 10.1097/mat.0000000000000208] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Differences in device design may have an effect on platelet damage and associated clinical complications. We aimed to compare device-specific platelet functionality in 26 heart failure patients supported with three continuous-flow left ventricular assist devices: HeartMate II (n = 8), Jarvik 2000 (n = 9), and HeartWare (n = 9). Intraplatelet reactive oxygen species (ROS) generation, mitochondrial damage, and platelet apoptosis were compared between device types before and after the implantation at every week up to 1 month. Overall, the baseline characteristics, demographics, routine laboratory values were comparable between the three device groups. Intraplatelet ROS, mitochondrial damage, and platelet apoptosis significantly elevated in the HeartWare group in comparison with the other two device groups after implantation. The major bleeding, infections, systemic inflammatory response syndrome, and right ventricular failure were found to be more common among the HeartWare group than others. Intraplatelet ROS and platelet damage levels were returned to baseline in both the HeartMate II and the Jarvik groups, whereas in HeartWare group they remained elevated. The patients with the Jarvik and the HeartMate II experienced less clinical complications and the platelet functionality is not compromised by these devices. Data from this study suggests that the continuous-flow left ventricular assist devices design may exert different effects on platelet function.
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Saha H, Mukherjee B, Bindhani B, Ray MR. Changes in RANKL and osteoprotegerin expression after chronic exposure to indoor air pollution as a result of cooking with biomass fuel. J Appl Toxicol 2015; 36:969-76. [DOI: 10.1002/jat.3275] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/07/2015] [Accepted: 11/08/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Hirak Saha
- Department of Experimental Hematology; Chittaranjan National Cancer Institute; Kolkata- 700 026 India
| | - Bidisha Mukherjee
- Department of Experimental Hematology; Chittaranjan National Cancer Institute; Kolkata- 700 026 India
- Department of Zoology; Ravenshaw University; Cuttack- 753003 India
| | - Banani Bindhani
- Department of Experimental Hematology; Chittaranjan National Cancer Institute; Kolkata- 700 026 India
| | - Manas Ranjan Ray
- Department of Experimental Hematology; Chittaranjan National Cancer Institute; Kolkata- 700 026 India
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Mukherjee S, Roychoudhury S, Siddique S, Banerjee M, Bhattacharya P, Lahiri T, Ray MR. Respiratory symptoms, lung function decrement and chronic obstructive pulmonary disease in pre-menopausal Indian women exposed to biomass smoke. Inhal Toxicol 2015; 26:866-72. [PMID: 25472477 DOI: 10.3109/08958378.2014.965560] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The impact of chronic exposure to smoke from biomass burning on respiratory health has been examined. METHODS Six-hundred and eighty-one non-smoking women (median age 35 years) from eastern India who cook exclusively with biomass (wood, dung and crop residues) and 438 age-matched women from similar neighborhood who cook with liquefied petroleum gas (LPG) were examined. Pulmonary function test was done by spirometry. The concentrations of particulate matter having diameter of < 10 µm (PM10) and < 2.5 µm (PM2.5) in indoor air was measured by real-time aerosol monitor. RESULTS Compared with LPG users, biomass users had greater prevalence of upper (50.9 versus 28.5%) and lower respiratory symptoms (71.8 versus 30.8%) and dyspnea (58.4 versus 19.9%). They showed reduction in all parameters measured by spirometer especially in mid-expiratory volume. PM10 and PM2.5 concentration in biomass using kitchen were 2-3-times more than LPG-using kitchen, and the decline in spirometry values was positively associated PM10 and PM2.5 levels in indoor air after controlling education, family income and kitchen location as potential confounders. Overall, 29.7% of biomass users and 16.4% of LPG users had deficient lung function, and restrictive type of deficiency was predominant. Chronic obstructive pulmonary disease (COPD) was diagnosed in 4.6% of biomass and 0.9% of LPG users. Women who predominantly used dung cake and did not possess separate kitchen had poorer lung function. CONCLUSION Cumulative exposure to biomass smoke causes lung function decrement and facilitates COPD development even in non-smoking and relatively young pre-menopausal women.
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Affiliation(s)
- Sayali Mukherjee
- Amity Institute of Biotechnology, Amity University Uttar Pradesh , Lucknow, Uttar Pradesh , India
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Silva R, Oyarzún M, Olloquequi J. Pathogenic Mechanisms in Chronic Obstructive Pulmonary Disease Due to Biomass Smoke Exposure. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.arbr.2015.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Northcross AL, Hwang N, Balakrishnan K, Mehta S. Assessing exposures to household air pollution in public health research and program evaluation. ECOHEALTH 2015; 12:57-67. [PMID: 25380652 PMCID: PMC4416115 DOI: 10.1007/s10393-014-0990-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 09/22/2014] [Accepted: 09/28/2014] [Indexed: 05/23/2023]
Abstract
Exposure to smoke from the use of solid fuels and inefficient stoves for cooking and heating is responsible for approximately 4 million premature deaths yearly. As increasing investments are made to tackle this important public health issue, there is a need for identifying and providing guidance on best practices for exposure and stove performance monitoring, particularly for public health research and evaluation studies. This paper, which builds upon the discussion at an expert consultation on exposure assessment convened by the Global Alliance for Clean Cookstoves, the Centers for Disease Control and Prevention, and PATH in late 2012, aims to provide general guidance on what to monitor, who and where to monitor, and how to monitor household air pollution exposures. In addition, we summarize information about commercially available monitoring equipment and the technical properties of these monitors most important for household air pollution exposure assessment. The target audience includes epidemiologists conducting health studies and program evaluators aiming to quantify changes in exposures to estimate the potential health benefits of cookstoves intervention projects.
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Affiliation(s)
- Amanda L Northcross
- Department of Environmental and Occupational Health, George Washington University Milken Institute School of Public Health, 950 New Hampshire Ave 7th Floor, 20057, Washington, DC, USA,
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Dickinson KL, Kanyomse E, Piedrahita R, Coffey E, Rivera IJ, Adoctor J, Alirigia R, Muvandimwe D, Dove M, Dukic V, Hayden MH, Diaz-Sanchez D, Abisiba AV, Anaseba D, Hagar Y, Masson N, Monaghan A, Titiati A, Steinhoff DF, Hsu YY, Kaspar R, Brooks B, Hodgson A, Hannigan M, Oduro AR, Wiedinmyer C. Research on Emissions, Air quality, Climate, and Cooking Technologies in Northern Ghana (REACCTING): study rationale and protocol. BMC Public Health 2015; 15:126. [PMID: 25885780 PMCID: PMC4336492 DOI: 10.1186/s12889-015-1414-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cooking over open fires using solid fuels is both common practice throughout much of the world and widely recognized to contribute to human health, environmental, and social problems. The public health burden of household air pollution includes an estimated four million premature deaths each year. To be effective and generate useful insight into potential solutions, cookstove intervention studies must select cooking technologies that are appropriate for local socioeconomic conditions and cooking culture, and include interdisciplinary measurement strategies along a continuum of outcomes. METHODS/DESIGN REACCTING (Research on Emissions, Air quality, Climate, and Cooking Technologies in Northern Ghana) is an ongoing interdisciplinary randomized cookstove intervention study in the Kassena-Nankana District of Northern Ghana. The study tests two types of biomass burning stoves that have the potential to meet local cooking needs and represent different "rungs" in the cookstove technology ladder: a locally-made low-tech rocket stove and the imported, highly efficient Philips gasifier stove. Intervention households were randomized into four different groups, three of which received different combinations of two improved stoves, while the fourth group serves as a control for the duration of the study. Diverse measurements assess different points along the causal chain linking the intervention to final outcomes of interest. We assess stove use and cooking behavior, cooking emissions, household air pollution and personal exposure, health burden, and local to regional air quality. Integrated analysis and modeling will tackle a range of interdisciplinary science questions, including examining ambient exposures among the regional population, assessing how those exposures might change with different technologies and behaviors, and estimating the comparative impact of local behavior and technological changes versus regional climate variability and change on local air quality and health outcomes. DISCUSSION REACCTING is well-poised to generate useful data on the impact of a cookstove intervention on a wide range of outcomes. By comparing different technologies side by side and employing an interdisciplinary approach to study this issue from multiple perspectives, this study may help to inform future efforts to improve health and quality of life for populations currently relying on open fires for their cooking needs.
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Affiliation(s)
- Katherine L Dickinson
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Ernest Kanyomse
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | | | - Evan Coffey
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Isaac J Rivera
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - James Adoctor
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Rex Alirigia
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | | | - MacKenzie Dove
- Relief International, 5455 Wilshire Blvd., Suite 1280, Los Angeles, CA, 90036, USA.
| | - Vanja Dukic
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Mary H Hayden
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - David Diaz-Sanchez
- EPA Human Studies Facility, 104 Mason Farm Road, Chapel Hill, NC, 27514-4512, USA.
| | - Adoctor Victor Abisiba
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Dominic Anaseba
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Yolanda Hagar
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Nicholas Masson
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Andrew Monaghan
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - Atsu Titiati
- Relief International, 5455 Wilshire Blvd., Suite 1280, Los Angeles, CA, 90036, USA.
| | - Daniel F Steinhoff
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - Yueh-Ya Hsu
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Rachael Kaspar
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Bre'Anna Brooks
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Abraham Hodgson
- Ghana Health Service, Private Mail Bag, Ministries, Accra, Ghana.
| | | | - Abraham Rexford Oduro
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
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Silva R, Oyarzún M, Olloquequi J. Pathogenic mechanisms in chronic obstructive pulmonary disease due to biomass smoke exposure. Arch Bronconeumol 2015; 51:285-92. [PMID: 25614376 DOI: 10.1016/j.arbres.2014.10.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/12/2014] [Accepted: 10/14/2014] [Indexed: 12/31/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) mortality and morbidity have increased significantly worldwide in recent decades. Although cigarette smoke is still considered the main risk factor for the development of the disease, estimates suggest that between 25% and 33% of COPD patients are non-smokers. Among the factors that may increase the risk of developing COPD, biomass smoke has been proposed as one of the most important, affecting especially women and children in developing countries. Despite the epidemiological evidence linking exposure to biomass smoke with adverse health effects, the specific cellular and molecular mechanisms by which this pollutant can be harmful for the respiratory and cardiovascular systems remain unclear. In this article we review the main pathogenic mechanisms proposed to date that make biomass smoke one of the major risk factors for COPD.
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Affiliation(s)
- Rafael Silva
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Manuel Oyarzún
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Jordi Olloquequi
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile.
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Caravedo MA, Painschab MS, Davila-Roman VG, De Ferrari A, Gilman RH, Vasquez-Villar AD, Pollard SL, Miranda JJ, Checkley W. Lack of association between chronic exposure to biomass fuel smoke and markers of right ventricular pressure overload at high altitude. Am Heart J 2014; 168:731-8. [PMID: 25440802 DOI: 10.1016/j.ahj.2014.06.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 06/15/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Chronic exposure to biomass fuel smoke has been implicated in the development of pulmonary hypertension and right ventricular pressure/volume overload through activation of inflammation, increase in vascular resistance, and endothelial dysfunction. We sought to compare N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) and echocardiography-derived pulmonary artery systolic pressure (PASP) levels in a high-altitude population-based study in Peru with and without chronic exposure to biomass fuel smoke. METHODS NT-pro-BNP levels were measured in 519 adults (275 with and 244 without chronic exposure to biomass fuel smoke). Participants answered sociodemographics and clinical history questionnaires, underwent a clinical examination and blood testing for cardiopulmonary biomarkers. PASP was measured in a subgroup of 153 (31%) subjects. RESULTS The study group consisted of 280 men (54%) and 239 women (46%). Average age was 56 years and average body mass index was 27 kg/m(2). In multivariable analysis, there was no association between chronic exposure to biomass fuel smoke and NT-pro-BNP (P = .31) or PASP (P = .31). In the subgroup in which both NT-pro-BNP levels and PASP were measured, there was strong evidence of an association between these two variables (ρ = 0.24, 95% CI 0.09-0.39; P = .003). We found that age, high sensitivity C-reactive protein, being male, and systolic blood pressure were positively associated with NT-pro-BNP levels whereas body mass index, low-density/high-density lipoprotein ratio, and Homeostasis Model of Assessment-Insulin Resistance were negatively associated (all P ≤ .02). CONCLUSIONS In this population-based study in a high-altitude setting, neither NT-pro-BNP levels nor echocardiography-derived PASP were associated with chronic exposure to biomass fuel smoke.
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Mukherjee B, Bindhani B, Saha H, Sinha D, Ray MR. Platelet hyperactivity, neurobehavioral symptoms and depression among Indian women chronically exposed to low level of arsenic. Neurotoxicology 2014; 45:159-67. [PMID: 25451969 DOI: 10.1016/j.neuro.2014.10.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 10/21/2014] [Accepted: 10/21/2014] [Indexed: 10/24/2022]
Abstract
The prevalence of neurobehavioral symptoms (NBS) and depression has been investigated in premenopausal rural women of West Bengal, India enrolled from arsenic (As) endemic (groundwater As 11-50 μg/L; n = 342) and control areas (As level ≤ 10 μg/L; n = 312). The subjective symptoms questionnaire and Beck's 21-point depression inventory-II were used for the detection of NBS and depression, respectively. Platelet P-selectin expression was measured by flow cytometry, plasma neurotransmitter activity with high performance liquid chromatography and groundwater As level by atomic absorption spectroscopy. The As level in groundwater was 2.72 ± 1.18 μg/L in control and 28.3 ± 13.51 μg/L in endemic areas (p < 0.0001). Women residing in endemic areas demonstrated a higher prevalence of depressive symptoms (39.8 vs. 19.9%, p < 0.001) and anxiety (43.3 vs. 18.0% in control, p < 0.001), fatigue (68.4 vs. 23.4%, p < 0.0001), reduced sense of taste (15.8 vs. 4.5%, p<0.0001) and smell (14.9 vs. 5.8%, p < 0.001); burning sensation (36.8 vs. 5.4%, p < 0.0001) and tingling or numbness in the extremities (25.1 vs. 5.1%, p < 0.0001); and transient loss of memory (69.9 vs. 28.2%, p < 0.001). As-exposed women had 1.6-times more plasma epinephrine and norepinephrine (p < 0.05), 1.8-times higher level plasma serotonin with 28.9% lower intraplatelet serotonin (p < 0.05 for both), but their plasma dopamine level was not significantly different (p>0.05) from that of controls. Moreover, women from endemic areas had 2.3-times more P-selectin-expressing platelets in their circulation (p < 0.001). After controlling the potential confounders, chronic low level As (11-50 μg/L) exposure showed a positive association with the prevalence of neurobehavioral symptoms and depression among Indian women in their child-bearing age.
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Affiliation(s)
- Bidisha Mukherjee
- Department of Experimental Hematology Unit, Chittaranjan National Cancer Institute, Kolkata-700 026, India
| | - Banani Bindhani
- Department of Experimental Hematology Unit, Chittaranjan National Cancer Institute, Kolkata-700 026, India
| | - Hirak Saha
- Department of Experimental Hematology Unit, Chittaranjan National Cancer Institute, Kolkata-700 026, India
| | - Dona Sinha
- Department of Receptor Biology and Tumor Metastasis, Chittaranjan National Cancer Institute, Kolkata-700 026, India.
| | - Manas Ranjan Ray
- Department of Experimental Hematology Unit, Chittaranjan National Cancer Institute, Kolkata-700 026, India
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Jensen A, Karottki DG, Christensen JM, Bønløkke JH, Sigsgaard T, Glasius M, Loft S, Møller P. Biomarkers of oxidative stress and inflammation after wood smoke exposure in a reconstructed Viking Age house. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2014; 55:652-661. [PMID: 24889798 DOI: 10.1002/em.21877] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
Exposure to particles from combustion of wood is associated with respiratory symptoms, whereas there is limited knowledge about systemic effects. We investigated effects on systemic inflammation, oxidative stress and DNA damage in humans who lived in a reconstructed Viking Age house, with indoor combustion of wood for heating and cooking. The subjects were exposed to high indoor concentrations of PM2.5 (700-3,600 µg/m(3)), CO (10.7-15.3 ppm) and NO2 (140-154 µg/m(3)) during a 1-week stay. Nevertheless, there were unaltered levels of genotoxicity, determined as DNA strand breaks and formamidopyrimidine DNA glycosylase and oxoguanine DNA glycosylase 1 sensitive sites in peripheral blood mononuclear cells. There were also unaltered expression levels of OGG1, HMOX1, CCL2, IL8, and TNF levels in leukocytes. In serum, there were unaltered levels of C-reactive protein, IL6, IL8, TNF, lactate dehydrogenase, cholesterol, triglycerides, and high-density lipoproteins. The wood smoke exposure was associated with decreased serum levels of sICAM-1, and a tendency to decreased sVCAM-1 levels. There was a minor increase in the levels of circulating monocytes expressing CD31, whereas there were unaltered expression levels of CD11b, CD49d, and CD62L on monocytes after the stay in the house. In conclusion, even a high inhalation exposure to wood smoke was associated with limited systemic effects on markers of oxidative stress, DNA damage, inflammation, and monocyte activation.
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Affiliation(s)
- Annie Jensen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Denmark
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Sarigiannis DΑ, Karakitsios SP, Kermenidou M, Nikolaki S, Zikopoulos D, Semelidis S, Papagiannakis A, Tzimou R. Total exposure to airborne particulate matter in cities: the effect of biomass combustion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 493:795-805. [PMID: 25000575 DOI: 10.1016/j.scitotenv.2014.06.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 06/09/2014] [Accepted: 06/14/2014] [Indexed: 06/03/2023]
Abstract
The study deals with the seasonal variability of PM exposure and the effect that biomass combustion has upon it in the urban environment. The study is based on measurements, chemical analyses and modeling results performed in Thessaloniki (Greece). The measurements campaign included the assessment of outdoor and indoor air quality and the evaluation of biomass use for domestic heating. The outdoor measurements highlighted a significant increase of PM10 (from 30.1 to 73.1 μg/m(3)) and PM2.5 (from 19.4 to 62.7 μg/m(3)) concentrations during the transition from the warm to the cold period of the year 2012 compared to 2011. The increase in ambient air PM during the winter was attributed to the use of biomass burning for space heating. The latter was verified by the presence of levoglucosan in the PM (concentrations up to 8 μg/m(3)), especially for samples taken from the urban background site. Outdoor PM concentrations were also modeled using an artificial neural network model taking into account major meteorological parameters; the latter explained more than 90% of PM10 and PM2.5 day-to-day variability. Indoor concentrations followed a similar pattern, while in the case of fireplace use, average daily concentrations rise to 10 μg/m(3) and 14 μg/m(3) for PM2.5 and PM10 respectively. Indoor air concentrations were affected the most by the ambient air particle infiltration. Indoor air quality went down after 3h of open fire biomass combustion for space heating. Personal exposure was significantly determined by overall indoor air quality. Yet, dynamic exposure analysis revealed that peaks of intake do not correspond to peaks of ambient air PM concentrations altering thus total exposure patterns. Thus, cost-effective public health protection has to aim at reducing the exposure profile of susceptible population sub-groups combining awareness raising, emission reduction measures and financial incentives to influence the choice of space heating systems.
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Affiliation(s)
- Dimosthenis Α Sarigiannis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece; Centre for Research and Technology Hellas, Chemical Process and Energy Resources Institute, Natural and Renewable Resource Exploitation Laboratory, 57001 Thessaloniki, Greece.
| | - Spyros P Karakitsios
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece; Centre for Research and Technology Hellas, Chemical Process and Energy Resources Institute, Natural and Renewable Resource Exploitation Laboratory, 57001 Thessaloniki, Greece
| | - Marianthi Kermenidou
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Spyridoula Nikolaki
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Dimitrios Zikopoulos
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Stauros Semelidis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Apostolos Papagiannakis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Environmental Engineering Laboratory, 54124 Thessaloniki, Greece
| | - Roxani Tzimou
- Aristotle University of Thessaloniki, Department of Chemical Engineering, Laboratory of Analytical Chemistry, 54124 Thessaloniki, Greece
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