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Fiamingo M, Bailey A, Toler S, Lee K, Oshiro W, Yoo B, Krantz T, Evansky P, Davies D, Gilmour MI, Farraj A, Jaspers I, Hazari MS. Enriched housing differentially alters allostatic load and cardiopulmonary responses to wildfire-related smoke in male and female mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:561-578. [PMID: 38721998 PMCID: PMC11167957 DOI: 10.1080/15287394.2024.2346582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Living conditions are an important modifier of individual health outcomes and may lead to higher allostatic load (AL). However, housing-induced cardiovascular and immune effects contributing to altered environmental responsiveness remain understudied. This investigation was conducted to examine the influence of enriched (EH) versus depleted housing (DH) conditions on cardiopulmonary functions, systemic immune responses, and allostatic load in response to a single wildfire smoke (WS) exposure in mice. Male and female C57BL/6J mice were divided into EH or DH for 22 weeks, and cardiopulmonary assessments measured before and after exposures to either one-hr filtered air (FA) or flaming eucalyptus WS exposure. Male and female DH mice exhibited increased heart rate (HR) and left ventricular mass (LVM), as well as reduced stroke volume and end diastolic volume (EDV) one week following exposure to WS. Female DH mice displayed significantly elevated levels of IL-2, IL-17, corticosterone and hemoglobin A1c (HbA1c) following WS, while female in EH mice higher epinephrine levels were detected. Female mice exhibited higher AL than males with DH, which was potentiated post-WS exposure. Thus, DH increased susceptibility to extreme air pollution in a gender-dependent manner suggesting that living conditions need to be evaluated as a modifier of toxicological responses.
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Affiliation(s)
- Michelle Fiamingo
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina – Chapel Hill, Chapel Hill, NC 27599
| | - Aleah Bailey
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina – Chapel Hill, Chapel Hill, NC 27599
| | - Sydnie Toler
- Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kaleb Lee
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830
| | - Wendy Oshiro
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - Brendan Yoo
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - Todd Krantz
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - Paul Evansky
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - David Davies
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - M. Ian Gilmour
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - Aimen Farraj
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
| | - Ilona Jaspers
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina – Chapel Hill, Chapel Hill, NC 27599
| | - Mehdi S. Hazari
- Public Health Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Research Triangle Park, NC 27711
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Drury NL, Mustapha T, Shore RA, Zhao J, Wright GA, Hoffmann AR, Talcott SU, Regan A, Tighe RM, Zhang R, Johnson NM. Maternal exposure to ultrafine particles enhances influenza infection during pregnancy. Part Fibre Toxicol 2023; 20:11. [PMID: 37069680 PMCID: PMC10106898 DOI: 10.1186/s12989-023-00521-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/01/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND Interactions between air pollution and infectious agents are increasingly recognized and critical to identify, especially to protect vulnerable populations. Pregnancy represents a vulnerable period for influenza infection and air pollution exposure, yet interactions during pregnancy remain unclear. Maternal exposure to ultrafine particles (UFPs, [Formula: see text] 100 nm diameter), a class of particulate matter ubiquitous in urban environments, elicits unique pulmonary immune responses. We hypothesized that UFP exposure during pregnancy would lead to aberrant immune responses to influenza enhancing infection severity. RESULTS Building from our well-characterized C57Bl/6N mouse model employing daily gestational UFP exposure from gestational day (GD) 0.5-13.5, we carried out a pilot study wherein pregnant dams were subsequently infected with Influenza A/Puerto Rico/8/1934 (PR8) on GD14.5. Findings indicate that PR8 infection caused decreased weight gain in filtered air (FA) and UFP-exposed groups. Co-exposure to UFPs and viral infection led to pronounced elevation in PR8 viral titer and reduced pulmonary inflammation, signifying potential suppression of innate and adaptive immune defenses. Pulmonary expression of the pro-viral factor sphingosine kinase 1 (Sphk1) and pro-inflammatory cytokine interleukin-1β (IL-1 [Formula: see text]) was significantly increased in pregnant mice exposed to UFPs and infected with PR8; expression correlated with higher viral titer. CONCLUSIONS Results from our model provide initial insight into how maternal UFP exposure during pregnancy enhances respiratory viral infection risk. This model is an important first step in establishing future regulatory and clinical strategies for protecting pregnant women exposed to UFPs.
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Affiliation(s)
- Nicholas L Drury
- Department of Environmental and Occupational Health, Texas A&M University, 212 Adriance Lab Rd, 1266 TAMU, College Station, TX, 77843, USA
- Department of Nutrition, Texas A&M University, College Station, TX, 77843, USA
| | - Toriq Mustapha
- Department of Environmental and Occupational Health, Texas A&M University, 212 Adriance Lab Rd, 1266 TAMU, College Station, TX, 77843, USA
| | - Ross A Shore
- Department of Environmental and Occupational Health, Texas A&M University, 212 Adriance Lab Rd, 1266 TAMU, College Station, TX, 77843, USA
| | - Jiayun Zhao
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Gus A Wright
- Department of Veterinary Pathobiology, Texas A&M University, College Station, TX, 77843, USA
| | - Aline Rodrigues Hoffmann
- Department of Comparative, Diagnostic, and Population Medicine, University of Florida, Gainesville, FL, 32653, USA
| | - Susanne U Talcott
- Department of Nutrition, Texas A&M University, College Station, TX, 77843, USA
| | - Annette Regan
- School of Nursing and Health Professions, University of San Francisco, Orange County, CA, 92868, USA
| | - Robert M Tighe
- Department of Medicine, Duke University, Durham, NC, 27710, USA
| | - Renyi Zhang
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
- Department of Atmospheric Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - Natalie M Johnson
- Department of Environmental and Occupational Health, Texas A&M University, 212 Adriance Lab Rd, 1266 TAMU, College Station, TX, 77843, USA.
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Li J, Mao M, Li J, Chen Z, Ji Y, Kong J, Wang Z, Zhang J, Wang Y, Liang W, Liang H, Lv L, Liu Q, Yan R, Yuan H, Chen K, Chang Y, Chen G, Xing G. Oral Administration of Omega-3 Fatty Acids Attenuates Lung Injury Caused by PM2.5 Respiratory Inhalation Simply and Feasibly In Vivo. Int J Mol Sci 2022; 23:ijms23105323. [PMID: 35628131 PMCID: PMC9140442 DOI: 10.3390/ijms23105323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 02/07/2023] Open
Abstract
For developing an effective interventional approach and treatment modality for PM2.5, the effects of omega-3 fatty acids on alleviating inflammation and attenuating lung injury induced by inhalation exposure of PM2.5 were assessed in murine models. We found that daily oral administration of the active components of omega-3 fatty acids, docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA) effectively alleviated lung parenchymal lesions, restored normal inflammatory cytokine levels and oxidative stress levels in treating mice exposed to PM2.5 (20 mg/kg) every 3 days for 5 times over a 14-day period. Especially, CT images and the pathological analysis suggested protective effects of DHA and EPA on lung injury. The key molecular mechanism is that DHA and EPA can inhibit the entry and deposition of PM2.5, and block the PM2.5-mediated cytotoxicity, oxidative stress, and inflammation.
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Affiliation(s)
- Juan Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
- Correspondence: (J.L.); (G.X.)
| | - Meiru Mao
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Jiacheng Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Ziteng Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Ying Ji
- Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong;
| | - Jianglong Kong
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Zhijie Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Jiaxin Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Yujiao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Wei Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Haojun Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Linwen Lv
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Qiuyang Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Ruyu Yan
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Hui Yuan
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Kui Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Yanan Chang
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
| | - Guogang Chen
- College of Food Science, Shihezi University, Shihezi 832000, China;
| | - Gengmei Xing
- CAS Key Laboratory for Biomedical Effects of Nanomaterial & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; (M.M.); (J.L.); (Z.C.); (J.K.); (Z.W.); (J.Z.); (Y.W.); (W.L.); (H.L.); (L.L.); (Q.L.); (R.Y.); (H.Y.); (K.C.); (Y.C.)
- Correspondence: (J.L.); (G.X.)
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Identification of Immune-Related lncRNA Pairs and Construction and Validation of a New Prognostic Signature of Colon Cancer. Can J Gastroenterol Hepatol 2022; 2022:5827544. [PMID: 35399646 PMCID: PMC8986404 DOI: 10.1155/2022/5827544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND More and more evidence has shown that immune-related long noncoding ribonucleic acid (irlncRNAs) is a potential prognostic factor for colon cancer. The relevant gene pair pattern can improve the sensitivity of the prognostic model. Therefore, our present study aimed to identify irlncRNA Pairs and construct and validate a new prognostic signature in colon cancer. METHODS We downloaded the expression matrix of mRNA and lncRNA of patients with colon cancer and their clinical information from the public TCGA database. We obtained immune genes from the ImmPort database. Coexpression analysis was performed to identify irlncRNAs. We built an irlncRNA pair matrix by comparing the expression levels of each lncRNA pair in a cycle. Univariate Cox regression analysis, LASSO penalized regression analysis, and multivariate Cox regression analysis were performed to determine the final variables to construct the prognostic risk score model (a new signature). We draw the receiver operating characteristic (ROC) curves of the signature and clinical characteristics and determine the optimal cutoff value by the optimal Akaike Information Criterion (AIC) value. Based on the optimal cutoff value of the ROC curve of the signature, colon cancer patients were divided into the high- and low-risk groups. Then, the signature was evaluated by clinicopathological features, tumor-infiltrating immune cells, checkpoint-related biomarkers, targeted therapy, and chemotherapy. RESULTS We identified 8 lncRNA pairs including AC103740.1|LEF1-AS1, LINC02391|AC053503.5, WWC2-AS2|AL355916.2, AC104090.1|NEURL1-AS1, AC099524.1|AL161908.1, AC074011.1|AL078601.2, AL355916.2|LINC01723, and AP003392.4|LINC00598 from 71 differently expressed irlncRNAs. We constructed a prognostic risk score model (a new signature) using these optimal eight irlncRNA pairs. ROC curve analysis revealed that the highest AUC value of the signature was 0.776 at 1 year, with the optimal cutoff value of 1.283. Our present study also showed that the constructed signature could accurately identify adverse survival outcomes, prognostic clinicopathological features, and specify tumor invasion status. The expression of immune checkpoint-related genes and chemical drug sensitivity were related to different risk groups. CONCLUSION In our present study, we constructed a new irlncRNA signature of colon cancer based on the irlncRNA pairs instead of the special expression level of lncRNA. We found this signature had not only good prognostic value but also certain clinical value, which might provide a new insight into the treatment and prognosis of colon cancer.
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Fongsodsri K, Chamnanchanunt S, Desakorn V, Thanachartwet V, Sahassananda D, Rojnuckarin P, Umemura T. Particulate Matter 2.5 and Hematological Disorders From Dust to Diseases: A Systematic Review of Available Evidence. Front Med (Lausanne) 2021; 8:692008. [PMID: 34336895 PMCID: PMC8316685 DOI: 10.3389/fmed.2021.692008] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/14/2021] [Indexed: 12/11/2022] Open
Abstract
Particulate matter 2.5 (PM2.5) in the air enters the human body by diffusion into the blood. Therefore, hematological abnormalities might occur because of these toxic particles, but few studies on this issue have been reported. According to Cochrane guidance, we performed a systematic review on the relationship between exposure to PM2.5 and the risk of hematological disorders. Ten articles were included in this review. Anemia was found among children and elderly populations with 2- to 5-year PM2.5 exposure. Young children from mothers exposed to air pollution during pregnancy had a higher incidence of leukemia similar to the elderly. Supporting these data, outdoor workers also showed abnormal epigenetic modifications after exposure to very high PM2.5 levels. Adults living in high PM2.5 areas for 2 years were more likely to develop thrombocytosis. Finally, elderly populations with 7- to 8-year PM2.5 exposure showed increased risks of venous thromboembolism. In conclusion, the associations between PM2.5 and hematological aberrations among high-risk people with long-term exposure were reported.
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Affiliation(s)
- Kamonpan Fongsodsri
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Supat Chamnanchanunt
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Varunee Desakorn
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Vipa Thanachartwet
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Duangjai Sahassananda
- Information Technology Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Ponlapat Rojnuckarin
- Division of Hematology, Department of Medicine, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Tsukuru Umemura
- Department of Medical Technology and Sciences, International University of Health and Welfare, Ohkawa, Japan
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Wei T, Jiao R, Nakyeyune R, Zang Z, Shao Y, Shen Y, Niu C, Zhu L, Ruan X, Liu F. Exposure to outdoor air pollution at different periods and the risk of leukemia: a meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:35376-35391. [PMID: 34009571 DOI: 10.1007/s11356-021-14053-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
The causes of leukemia remain largely unknown; our aims were to examine the association between the exposure to outdoor air pollution and leukemia risk and to explore the effect of this exposure during different periods of pregnancy and early life. We searched for all case-control and cohort studies published before February 20, 2021, which measured the risk of leukemia in relation to exposure to the air pollutants: particulate matter, benzene, nitrogen dioxide (NO2), and nitrogen oxides (NOx). We then carried out a meta-analysis and calculated the summary relative risks (RRs) of leukemia by using a random-effects model. The potential dose-response relationship was further explored. The results showed that the highest exposure to benzene (RR: 1.20, 95%CI: 1.06-1.35) and NO2 (RR: 1.04, 95%CI; 1.02-1.08) were positively correlated with leukemia risk when compared to the lowest exposure categories for each air pollutant. During pregnancy, exposure to benzene in the third trimester, as well as exposure to NO2 in the second trimester and entire pregnancy, could also increase the risk of leukemia. In the dose-response analysis, benzene exposure and NO2 exposure were linearly associated with the risk of leukemia. Other air pollutants did not have a statistical correlation with leukemia risk. There was a certain degree of publication bias in studies on benzene. Overall, our results support a link between outdoor air pollution and leukemia risk, particularly due to benzene and NO2. Prospero Registration Number: PROSPERO CRD42020207025.
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Affiliation(s)
- Tong Wei
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Rong Jiao
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Rena Nakyeyune
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Zhaoping Zang
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Yi Shao
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Yi Shen
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Chen Niu
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Lingyan Zhu
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Xiaoli Ruan
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China
| | - Fen Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, 10# Xitoutiao, Youanmenwai Street, Beijing, 100069, China.
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Puett RC, Poulsen AH, Taj T, Ketzel M, Geels C, Brandt J, Christensen JH, Sørensen M, Roswall N, Hvidtfeldt U, Raaschou-Nielsen O. Relationship of leukaemias with long-term ambient air pollution exposures in the adult Danish population. Br J Cancer 2020; 123:1818-1824. [PMID: 32939055 PMCID: PMC7722932 DOI: 10.1038/s41416-020-01058-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 08/11/2020] [Accepted: 08/26/2020] [Indexed: 12/24/2022] Open
Abstract
Background Few population-based epidemiological studies of adults have examined the relationship between air pollution and leukaemias. Methods Using Danish National Cancer Registry data and Danish DEHM-UBM-AirGIS system-modelled air pollution exposures, we examined whether particulate matter (PM2.5), black carbon (BC), nitrogen dioxide (NO2) and ozone (O3) averaged over 1, 5 or 10 years were associated with adult leukaemia in general or by subtype. In all, 14,986 adult cases diagnosed 1989–2014 and 51,624 age, sex and time-matched controls were included. Separate conditional logistic regression models, adjusted for socio-demographic factors, assessed exposure to each pollutant with leukaemias. Results Fully adjusted models showed a higher risk of leukaemia with higher 1-, 5- and 10-year-average exposures to PM2.5 prior to diagnosis (e.g. OR per 10 µg/m3 for 10-year average: 1.17, 95% CI: 1.03, 1.32), and a positive relationship with 1-year average BC. Results were driven by participants 70 years and older (OR per 10 µg/m3 for 10-year average: 1.35, 95% CI: 1.15–1.58). Null findings for younger participants. Higher 1-year average PM2.5 exposures were associated with higher risks for acute myeloid and chronic lymphoblastic leukaemia. Conclusion Among older adults, higher risk for leukaemia was associated with higher residential PM2.5 concentrations averaged over 1, 5 and 10 years prior to diagnosis.
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Affiliation(s)
- Robin C Puett
- Institute for Applied Environmental Health, School of Public Health, University of Maryland, College Park, MD, USA. .,Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark.
| | - Aslak Harbo Poulsen
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Tahir Taj
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Matthias Ketzel
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box. 358, DK-4000, Roskilde, Denmark.,Global Centre for Clean Air Research (GCARE), University of Surrey, Guildford, GU2 7XH, UK
| | - Camilla Geels
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box. 358, DK-4000, Roskilde, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box. 358, DK-4000, Roskilde, Denmark
| | - Jesper H Christensen
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box. 358, DK-4000, Roskilde, Denmark
| | - Mette Sørensen
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark.,Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark
| | - Nina Roswall
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Ulla Hvidtfeldt
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark
| | - Ole Raaschou-Nielsen
- Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen, Denmark.,Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box. 358, DK-4000, Roskilde, Denmark
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Li J, Li H, Li H, Guo W, An Z, Zeng X, Li W, Li H, Song J, Wu W. Amelioration of PM 2.5-induced lung toxicity in rats by nutritional supplementation with fish oil and Vitamin E. Respir Res 2019; 20:76. [PMID: 30992001 PMCID: PMC6469198 DOI: 10.1186/s12931-019-1045-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 04/07/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Exposure to fine particulate matter (PM2.5) has been associated with respiratory morbidity and mortality. Identification of interventional measures that are efficacious against PM2.5-induced toxicity may provide public health benefits. This study examined the inhibitory effects of nutritional supplementation with fish oil as a source of omega-3 fatty acids and vitamin E (Vit E) on PM2.5-induced lung toxicity in rats. METHOD Sixty four male Sprague Dawley rats were gavaged with phosphate buffered saline (PBS), corn oil (5 ml/kg), fish oil (150 mg/kg), or Vit E (75 mg/kg), respectively, once a day for 21 consecutive days prior to intratracheal instillation of PM2.5 (10 mg/kg) every other day for a total of 3 times. Serum and bronchoalveolar lavage fluids (BALFs) were collected 24 h after the last instillation of PM2.5. Levels of total proteins (TP), lactate dehydrogenase (LDH), superoxide dismutase (SOD), 8-epi-prostaglandin F2α (8-epi-PGF2α), interleukin-1β (IL-1β), C-reactive protein (CRP), IL-6, and tumor necrosis factor-ɑ (TNF-ɑ) were analyzed for markers of cell injury and inflammation. Additionally, histological alterations of lung tissues were examined by hematoxylin-eosin staining. RESULT Exposure to PM2.5 resulted in lung toxicity, represented as increased levels of total proteins, LDH, 8-epi-PGF2α, IL-1β and TNF-α, and increased infiltration of inflammatory cells, and decreased SOD in the BALFs, and systemic inflammation, as evinced by increased levels of CRP and IL-6 in serum. Strikingly, supplementation with fish oil but not Vit E significantly ameliorated PM2.5-induced lung toxicity and systemic inflammation. CONCLUSION PM2.5 exposure induces oxidative stress, lung injury and inflammation, which is ameliorated significantly by fish oil and partially by Vit E.
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Affiliation(s)
- Juan Li
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Hang Li
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Haibin Li
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Weili Guo
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Zhen An
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Xiang Zeng
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Wen Li
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Huijun Li
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Jie Song
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China
| | - Weidong Wu
- International Collaborative Laboratory for Air Pollution Health Effects and Intervention, School of Public Health, Xinxiang Medical University, 601 Jinsui Street, Xinxiang, 453003, Henan Province, China.
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