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Liao H, Chen S, Xu S, Lv Y, Liu W, Xu H. Acute effects of ambient air pollution exposure on lung function in the elderly in Hangzhou, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:1022-1032. [PMID: 35469508 DOI: 10.1080/09603123.2022.2067523] [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: 01/02/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Evidence of an association between acute air pollution exposure and lung function in the elderly is limited. This study is cross-sectional. We quantified the effects of air pollution exposure on lung function among 256 elderly by using a linear mixed model. The results revealed that air pollutants had lag effects on lung function after adjusting for confounders. PM2.5 (Lag03, Lag 03 was defined three-day moving average, and so forth), PM10, NO2 (Lag04-Lag05) were significantly associated with reduced FEV1. PM2.5 (Lag01-Lag02), PM10 (Lag0-Lag07), NO2 (Lag0, Lag04), and SO2 (Lag0) were significantly associated with reduced Forced vital capacity (FVC). PM2.5 (Lag04-Lag07) and NO2 (Lag01-Lag07) were significantly associated with reduced FEF25%-75%. The results showed the adverse change was stronger after adjusting for other pollutants in the PM models, and women were more susceptible to air pollutants. Therefore, we should pay attention to the problem of air pollution in the elderly, especially in women.
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Affiliation(s)
- Hui Liao
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shuchang Chen
- Department of Environmental Health, Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
| | - Shanshan Xu
- Department of Environmental Health, Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
| | - Ye Lv
- Department of Environmental Health, Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
| | - Weiyan Liu
- Department of Environmental Health, Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
| | - Hong Xu
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- Department of Environmental Health, Hangzhou Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
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Wu X, Yao J, Hu Q, Kang H, Miao Y, Zhu L, Li C, Zhao X, Li J, Wan M, Tang W. Emodin Ameliorates Acute Pancreatitis-Associated Lung Injury Through Inhibiting the Alveolar Macrophages Pyroptosis. Front Pharmacol 2022; 13:873053. [PMID: 35721108 PMCID: PMC9201345 DOI: 10.3389/fphar.2022.873053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Objective: To investigate the protective effect of emodin in acute pancreatitis (AP)-associated lung injury and the underlying mechanisms. Methods: NaT-AP model in rats was constructed using 3.5% sodium taurocholate, and CER+LPS-AP model in mice was constructed using caerulein combined with Lipopolysaccharide. Animals were divided randomly into four groups: sham, AP, Ac-YVAD-CMK (caspase-1 specific inhibitor, AYC), and emodin groups. AP-associated lung injury was assessed with H&E staining, inflammatory cytokine levels, and myeloperoxidase activity. Alveolar macrophages (AMs) pyroptosis was evaluated by flow cytometry. In bronchoalveolar lavage fluid, the levels of lactate dehydrogenase and inflammatory cytokines were measured by enzyme-linked immunosorbent assay. Pyroptosis-related protein expressions were detected by Western Blot. Results: Emodin, similar to the positive control AYC, significantly alleviated pancreas and lung damage in rats and mice. Additionally, emodin mitigated the pyroptotic process of AMs by decreasing the level of inflammatory cytokines and lactate dehydrogenase. More importantly, the protein expressions of NLRP3, ASC, Caspase1 p10, GSDMD, and GSDMD-NT in AMs were significantly downregulated after emodin intervention. Conclusion: Emodin has a therapeutic effect on AP-associated lung injury, which may result from the inhibition of NLRP3/Caspase1/GSDMD-mediated AMs pyroptosis signaling pathways.
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Affiliation(s)
- Xiajia Wu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Hu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hongxin Kang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yifan Miao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lv Zhu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Cong Li
- Research Core Facility, West China Hospital, Sichuan University, Chengdu, China
| | - Xianlin Zhao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Li
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
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A Whiff of Sulfur: One Wind a Day Keeps the Doctor Away. Antioxidants (Basel) 2022; 11:antiox11061036. [PMID: 35739933 PMCID: PMC9219989 DOI: 10.3390/antiox11061036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 12/30/2022] Open
Abstract
Reactive Sulfur Species (RSS), such as allicin from garlic or sulforaphane from broccoli, are fre-quently associated with biological activities and possible health benefits in animals and humans. Among these Organic Sulfur Compounds (OSCs) found in many plants and fungi, the Volatile Sulfur Compounds (VSCs) feature prominently, not only because of their often-pungent smell, but also because they are able to access places which solids and solutions cannot reach that easily. Indeed, inorganic RSS such as hydrogen sulfide (H2S) and sulfur dioxide (SO2) can be used to lit-erally fumigate entire rooms and areas. Similarly, metabolites of garlic, such as allyl methyl sulfide (AMS), are formed metabolically in humans in lower concentrations and reach the airways from inside the body as part of one’s breath. Curiously, H2S is also formed in the gastrointestinal tract by gut bacteria, and the question of if and for which purpose this gas then crosses the barriers and enters the body is indeed a delicate matter for equally delicate studies. In any case, nature is surprisingly rich in such VSCs, as fruits (for instance, the infamous durian) demonstrate, and therefore these VSCs represent a promising group of compounds for further studies.
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Huang Y, Zhang H, Lv B, Tang C, Du J, Jin H. Sulfur Dioxide: Endogenous Generation, Biological Effects, Detection, and Therapeutic Potential. Antioxid Redox Signal 2022; 36:256-274. [PMID: 34538110 DOI: 10.1089/ars.2021.0213] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Previously, sulfur dioxide (SO2) was recognized as an air pollutant. However, it is found to be endogenously produced in mammalian tissues. As a new gasotransmitter, SO2 is involved in regulating the structure and function of blood vessels, heart, lung, gastrointestinal tract, nervous system, etc.Recent Advances: Increasing evidence showed that endogenous SO2 regulates cardiovascular physiological processes, such as blood pressure control, vasodilation, maintenance of the normal vascular structure, and cardiac negative inotropy. Under pathological conditions including hypertension, atherosclerosis, vascular calcification, aging endothelial dysfunction, myocardial injury, myocardial hypertrophy, diabetic myocardial fibrosis, sepsis-induced cardiac dysfunction, pulmonary hypertension, acute lung injury, colitis, epilepsy-related brain injury, depression and anxiety, and addictive drug reward memory consolidation, endogenous SO2 protects against the pathological changes via different molecular mechanisms and the disturbed SO2/aspartate aminotransferase pathway is likely involved in the mechanisms for the earlier mentioned pathologic processes. Critical Issues: A comprehensive understanding of the biological effects of endogenous SO2 is extremely important for the development of novel SO2 therapy. In this review, we summarized the biological effects, mechanism of action, SO2 detection methods, and its related prodrugs. Future Directions: Further studies should be conducted to understand the effects of endogenous SO2 in various physiological and pathophysiological processes and clarify its underlying mechanisms. More efficient and accurate SO2 detection methods, as well as specific and effective SO2-releasing systems should be designed for the treatment and prevention of clinical related diseases. The translation from SO2 basic medical research to its clinical application is also worthy of further study. Antioxid. Redox Signal. 36, 256-274.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Boyang Lv
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Li Y, Feng Y, Ye X, Peng H, Du J, Yao X, Huang Y, Jin H, Du J. Endogenous SO 2 Controls Cell Apoptosis: The State-of-the-Art. Front Cell Dev Biol 2021; 9:729728. [PMID: 34692686 PMCID: PMC8529009 DOI: 10.3389/fcell.2021.729728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/13/2021] [Indexed: 11/17/2022] Open
Abstract
SO2, previously known as the product of industrial waste, has recently been proven to be a novel gasotransmitter in the cardiovascular system. It is endogenously produced from the metabolism pathway of sulfur-containing amino acids in mammalians. Endogenous SO2 acts as an important controller in the regulation of many biological processes including cardiovascular physiological and pathophysiological events. Recently, the studies on the regulatory effect of endogenous SO2 on cell apoptosis and its pathophysiological significance have attracted great attention. Endogenous SO2 can regulate the apoptosis of vascular smooth muscle cells, endothelial cells, cardiomyocytes, neuron, alveolar macrophages, polymorphonuclear neutrophils and retinal photoreceptor cells, which might be involved in the pathogenesis of hypertension, pulmonary hypertension, myocardial injury, brain injury, acute lung injury, and retinal disease. Therefore, in the present study, we described the current findings on how endogenous SO2 is generated and metabolized, and we summarized its regulatory effects on cell apoptosis, underlying mechanisms, and pathophysiological relevance.
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Affiliation(s)
- Yingying Li
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Department of Cardiovascular Medicine, Children’s Hospital Affiliated to Zhengzhou University/Children’s Hospital of Henan Province, Zhengzhou, China
| | - Yingjun Feng
- Department of Cardiovascular Medicine, Children’s Hospital Affiliated to Zhengzhou University/Children’s Hospital of Henan Province, Zhengzhou, China
| | - Xiaoyun Ye
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hanlin Peng
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Jiantong Du
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Xiaoli Yao
- Department of Cardiovascular Medicine, Children’s Hospital Affiliated to Zhengzhou University/Children’s Hospital of Henan Province, Zhengzhou, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China
- Key Lab of Molecular Cardiology, Ministry of Education, Beijing, China
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Jiang Y, Wang J, Zheng X, Du J. Plasma Endogenous Sulfur Dioxide: A Novel Biomarker to Predict Acute Kidney Injury in Critically Ill Patients. Int J Gen Med 2021; 14:2127-2136. [PMID: 34093033 PMCID: PMC8169086 DOI: 10.2147/ijgm.s312058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/17/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose Sulfur dioxide (SO2) is a novel gaseous signaling molecule that plays an important role in inflammation, which contributes the pathogenesis of acute kidney injury (AKI). The aim of this study was to explore the predictive value of plasma SO2 for AKI in high-risk patients. Patients and Methods A prospective cohort of 167 patients who underwent major noncardiac surgery was enrolled in the study. Plasma SO2, urine neutrophil gelatinase-associated lipocalin (NGAL), tissue inhibitor of metalloproteinase-2 (TIMP-2), and insulin-like growth factor-binding protein 7 (IGFBP7) levels were detected immediately after the operation. The primary endpoint was new-onset AKI within 72 h after admission. The ability of biomarkers including SO2 and a clinical risk model to predict AKI was compared by receiver operator characteristic (ROC) curve analysis and decision curve analysis (DCA), additional contributions were evaluated by integrated discrimination improvement (IDI) and net reclassification improvement (NRI) analyses. Results A total of 61 (36.5%) patients developed AKI within 72 h of surgery. Compared to NGAL and [TIMP-2]·[IGFBP7], SO2 showed better predictive ability for new-onset AKI with an area under the ROC curve of 0.771 (95% confidence interval: 0.700–0.832, p<0.001). The improvement in predictive value by including SO2 in the clinical risk model was supported by NRI (0.28; P=0.04) and IDI (0.15; P<0.001) analyses. The net benefit of the combination of SO2 and clinical variables was the max in DCA. Conclusion Plasma SO2 shows a useful value for predicting new-onset AKI, and improved AKI prediction based on clinical variables, which can guide the implementation of preventive measures for high-risk patients.
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Affiliation(s)
- Yijia Jiang
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jingyi Wang
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xi Zheng
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jiantong Du
- Department of Ophthalmology, Peking University First Hospital, Beijing, People's Republic of China
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Jiang Y, Zhang W. LncRNA ZFAS1 plays a role in regulating the inflammatory responses in sepsis-induced acute lung injury via mediating miR-193a-3p. INFECTION GENETICS AND EVOLUTION 2021; 92:104860. [PMID: 33848686 DOI: 10.1016/j.meegid.2021.104860] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/24/2021] [Accepted: 04/08/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To explore the role of lncRNA ZFAS1-mediated miR-193a-3p in the regulation of inflammatory responses in rats with sepsis-induced acute lung injury (ALI). METHODS Sepsis-induced ALI models were constructed by LPS induction and then injected with ZFAS1 overexpression plasmid. Thereafter, lung injury score and the W/D weight ratio were calculated. Besides, bronchoalveolar lavage fluid (BALF) was isolated from rats to perform the cell count and protein quantification, while qRT-PCR and ELISA were performed to detect the inflammatory cytokines expressions. In vitro, NR8383 cells were transfected and then treated with LPS, followed by the measurement of inflammatory cytokines, cell viability and cell apoptosis. RESULTS In comparison with the Control group, rats in the LPS group presented sharp increases in the W/D weight ratio and injury score of lung, total protein concentration and the count of neutrophils and macrophages in BALF. Besides, rats in LPS group also resulted in a decrease in ZFAS1 expression and increase in miR-193a-3p expression in lung tissues, with the increased pro-inflammatory cytokines. Dual luciferase reporter gene assay confirmed a target relation between miR-193a-3p and ZFAS1. As compared to the Blank group, NR8383 cells in the LPS group had up-regulated pro-inflammatory cytokines with declined cell viability and elevated cell apoptosis; and meanwhile, ZFAS1 and Bcl-2 were decreased but miR-193a-3p and Bax were increased. Overexpression of ZFAS1 could significantly improve LPS-induced ALI in vivo and in vitro with reduced levels of pro-inflammatory cytokines. CONCLUSION Overexpression of ZFAS1, possibly via targeting the expression of miR-193a-3p, could inhibit the apoptosis and ameliorate the inflammatory responses of ALI in sepsis.
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Affiliation(s)
- Yan Jiang
- Department of Critical Care Medicine, Yantaishan Hospital, Yantai 264001, China
| | - Wei Zhang
- Department of Critical Care Medicine, Yantaishan Hospital, Yantai 264001, China.
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Li Q, Liu L, Sun H, Cao K. Carnosic acid protects against lipopolysaccharide-induced acute lung injury in mice. Exp Ther Med 2019; 18:3707-3714. [PMID: 31611929 PMCID: PMC6781802 DOI: 10.3892/etm.2019.8042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 05/31/2019] [Indexed: 12/12/2022] Open
Abstract
Acute respiratory distress syndrome is a well-known inflammatory disease associated with high rates of morbidity and mortality due to a lack of effective treatment methods. Carnosic acid (CA) is a phenolic diterpene compound that serves a central role in cytoprotective responses to inflammation. In the present study, the protective mechanism of CA on acute lung injury (ALI) induced by lipopolysaccharide (LPS) was investigated. Mice were randomly assigned to the following five groups: Control group, LPS group, and LPS plus CA groups (at 10, 20 and 40 mg/kg doses). Following pre-treatment with vehicle or CA, ALI was induced by the administration of LPS. At 6 h after LPS treatment, mice were sacrificed and lung tissues were harvested for histologic analysis and the determination of wet-to-dry ratio, myeloperoxidase activity and toll-like receptor 4 (TLR4) and NF-κB expression. Additionally, the levels of interleukin (IL)-1β, IL-6 and tumor necrosis factor-α (TNF-α) were determined in bronchoalveolar lavage fluid (BALF) and lung tissues, as well as the rate of apoptosis of the isolated neutrophils from BALF. The alleviation of LPS-induced ALI by CA was confirmed by histologic results and a reduction in the wet-to-dry ratio of lung tissues. Additionally, CA was revealed to significantly suppress the inhibitory effect of LPS on neutrophil apoptosis and the promoting effects of LPS on IL-1β, IL-6, TNF-α, TLR4 and NF-κB expression, and NF-κB phosphorylation. The current results indicated that CA protects against LPS-induced ALI via a mechanism that inhibits inflammation.
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Affiliation(s)
- Quan Li
- Intensive Care Unit, Suqian First Hospital, Suqian, Jiangsu 223800, P.R. China
| | - Ling Liu
- Intensive Care Unit, Zhongda Hospital Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Haijun Sun
- Intensive Care Unit, Suqian First Hospital, Suqian, Jiangsu 223800, P.R. China
| | - Kunyue Cao
- Intensive Care Unit, Suqian First Hospital, Suqian, Jiangsu 223800, P.R. China
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Zhai Y, Huang XL, Ma HJ, Zhou XH, Zhou JL, Fan YM. Sulfur dioxide reduces lipopolysaccharide-induced acute lung injury in rats. Cent Eur J Immunol 2019; 44:226-236. [PMID: 31933533 PMCID: PMC6953369 DOI: 10.5114/ceji.2019.89593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 04/19/2017] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Recent studies suggested that sulfur dioxide (SO2) can be produced endogenously by pulmonary vessels and attenuate acute lung injury (ALI) with vasorelaxant effects. This study was conducted to determine whether SO2 can inhibit lung inflammation and relax pulmonary arteries via inhibition of the mitogen-activated protein kinase (MAPK) pathway. MATERIAL AND METHODS Forty-eight adult male Sprague Dawley rats (250~300 g) were randomly divided into six treatment groups: control (n = 8), control + SO2 (n = 8), control + L-aspartic acid-β-hydroxamate (HDX) (n = 8), LPS (n = 8), LPS + SO2 (n = 8) and LPS + HDX (n = 8). RESULTS Six hours after LPS treatment, rats exhibited elevated pulmonary artery hypertension (PAH), marked pulmonary structure injury with elevated pulmonary myeloperoxidase (MPO) activity and increased expression of intercellular adhesion molecule 1 (ICAM-1) and CD11b, along with decreased pulmonary SO2 production and reduced pulmonary aspartate aminotransferase (AAT) activity. Pretreatment with SO2 saline solution significantly reduced, while HDX (AAT inhibitor) aggravated, the pathogenesis of LPS-induced ALI. Moreover, SO2 saline solution significantly down-regulated expression of Raf-1, MEK-1 and phosphorylated ERK (p-ERK). It also prevented pulmonary hypertension in association with an up-regulated SO2/AAT pathway. However, HDX advanced pulmonary hypertension and inflammatory responses in the lung were associated with a down-regulated SO2/AAT pathway. CONCLUSIONS Our results suggest that SO2 markedly relieved inflammatory responses, in association with Raf-1, MEK-1 and p-ERK during ALI induced by LPS. The down-regulation of the SO2/AAT pathway may be involved in the mechanism(s) of LPS-induced lung injury.
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Affiliation(s)
- Yu Zhai
- Department of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Xin-Li Huang
- Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Hui-Jie Ma
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Xiao-Hong Zhou
- Department of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Jun-Lin Zhou
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ya-Min Fan
- Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
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Zhang W, Huo F, Zhang Y, Yin C. Dual-site functionalized NIR fluorescent material for a discriminative concentration-dependent response to SO2 in cells and mice. J Mater Chem B 2019; 7:1945-1950. [DOI: 10.1039/c8tb03253j] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sulfur dioxide (SO2), as an important anti-oxidant and gaseous signaling molecule, plays fundamental roles in the regulation of intracellular signaling and cell death cellular bioenergetics.
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Affiliation(s)
- Weijie Zhang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education
- Key Laboratory of Materials for Energy, Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
| | - Fangjun Huo
- Research Institute of Applied Chemistry
- Shanxi University
- Taiyuan 030006
- China
| | - Yongbin Zhang
- Research Institute of Applied Chemistry
- Shanxi University
- Taiyuan 030006
- China
| | - Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education
- Key Laboratory of Materials for Energy, Conversion and Storage of Shanxi Province
- Institute of Molecular Science
- Shanxi University
- Taiyuan 030006
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Chen C, Li C, Li Y, Liu J, Meng C, Han J, Zhang Y, Xu D. Short-term effects of ambient air pollution exposure on lung function: A longitudinal study among healthy primary school children in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:1014-1020. [PMID: 30248826 DOI: 10.1016/j.scitotenv.2018.07.154] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/02/2018] [Accepted: 07/12/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Short-term exposure to ambient air pollution has been associated with reduced lung function among asthmatic children. However, there is little information about the effects among healthy children, especially in areas with relatively high exposure background. OBJECTIVE To examine the association between short-term effects of ambient air pollutants and lung function among healthy primary school-aged children in China. METHODS A total of 334 healthy children (7-11 years) from four cities (Chengdu (Southwest China), Guangzhou (Southern China), Wuhan (Central China), and Xi'an (Northwest China)) in China with repeated lung function measurement in 2014-2016 were included. Daily ambient concentrations of PM2.5, PM10, NO2, SO2, mean temperature, and relative humidity data were obtained. Linear mixed model was used to estimate the percent change in lung function associated with per inter-quartile range (IQR) exposure (up to 3 days) increase after adjusting for confounders. RESULTS Ambient PM2.5 and PM10 exposure were associated with decrements in lung function measurements. The moving average exposures generally showed stronger effect estimates than the single lag day exposures. An IQR increase in two-day average (lag01 day) PM10 exposure (IQR, 144 μg/m3) was significantly associated with 2.56% decrease in FVC, 5.46% in FEV1, 4.23% in PEF, and 7.35% in FEF25%, respectively. The effect estimates were stronger after adjusting for gaseous pollutants in particulate matter (PM) models. The strengths of these associations were stronger in girls than those in boys. CONCLUSION Short-term exposure to PM was associated with reduced lung function in healthy children. The estimated adverse effects were greater in girls than in boys.
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Affiliation(s)
- Chen Chen
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Chengcheng Li
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Yawei Li
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Jingyi Liu
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Congshen Meng
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Jingxiu Han
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Yawei Zhang
- Department of Environmental Health Science, Yale School of Public Health Sciences, New Haven 06511, USA
| | - Dongqun Xu
- National Institute of Environmental and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
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Qi XL, Hao J, Huang LJ, Wu S, Ma HH, Ye ZQ, He HB, Li SW, Li CE, Huang X. Apoptotic mechanisms in rabbits with blast-induced acute lung injury. Acta Cir Bras 2018; 33:896-903. [PMID: 30484499 DOI: 10.1590/s0102-865020180100000004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/28/2018] [Indexed: 01/02/2023] Open
Affiliation(s)
| | | | | | | | - Hong-Hao Ma
- University of Science and Technology of China, China
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Zhang D, Wang X, Tian X, Zhang L, Yang G, Tao Y, Liang C, Li K, Yu X, Tang X, Tang C, Zhou J, Kong W, Du J, Huang Y, Jin H. The Increased Endogenous Sulfur Dioxide Acts as a Compensatory Mechanism for the Downregulated Endogenous Hydrogen Sulfide Pathway in the Endothelial Cell Inflammation. Front Immunol 2018; 9:882. [PMID: 29760703 PMCID: PMC5936987 DOI: 10.3389/fimmu.2018.00882] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 04/09/2018] [Indexed: 02/04/2023] Open
Abstract
Endogenous hydrogen sulfide (H2S) and sulfur dioxide (SO2) are regarded as important regulators to control endothelial cell function and protect endothelial cell against various injuries. In our present study, we aimed to investigate the effect of endogenous H2S on the SO2 generation in the endothelial cells and explore its significance in the endothelial inflammation in vitro and in vivo. The human umbilical vein endothelial cell (HUVEC) line (EA.hy926), primary HUVECs, primary rat pulmonary artery endothelial cells (RPAECs), and purified aspartate aminotransferase (AAT) protein from pig heart were used for in vitro experiments. A rat model of monocrotaline (MCT)-induced pulmonary vascular inflammation was used for in vivo experiments. We found that endogenous H2S deficiency caused by cystathionine-γ-lyase (CSE) knockdown increased endogenous SO2 level in endothelial cells and enhanced the enzymatic activity of AAT, a major SO2 synthesis enzyme, without affecting the expressions of AAT1 and AAT2. While H2S donor could reverse the CSE knockdown-induced increase in the endogenous SO2 level and AAT activity. Moreover, H2S donor directly inhibited the activity of purified AAT protein, which was reversed by a thiol reductant DTT. Mechanistically, H2S donor sulfhydrated the purified AAT1/2 protein and rescued the decrease in the sulfhydration of AAT1/2 protein in the CSE knockdown endothelial cells. Furthermore, an AAT inhibitor l-aspartate-β-hydroxamate (HDX), which blocked the upregulation of endogenous SO2/AAT generation induced by CSE knockdown, aggravated CSE knockdown-activated nuclear factor-κB pathway in the endothelial cells and its downstream inflammatory factors including ICAM-1, TNF-α, and IL-6. In in vivo experiment, H2S donor restored the deficiency of endogenous H2S production induced by MCT, and reversed the upregulation of endogenous SO2/AAT pathway via sulfhydrating AAT1 and AAT2. In accordance with the results of the in vitro experiment, HDX exacerbated the pulmonary vascular inflammation induced by the broken endogenous H2S production in MCT-treated rat. In conclusion, for the first time, the present study showed that H2S inhibited endogenous SO2 generation by inactivating AAT via the sulfhydration of AAT1/2; and the increased endogenous SO2 generation might play a compensatory role when H2S/CSE pathway was downregulated, thereby exerting protective effects in endothelial inflammatory responses in vitro and in vivo.
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Affiliation(s)
- Da Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiuli Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Xiaoyu Tian
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Lulu Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Guosheng Yang
- Animal Center, Peking University First Hospital, Beijing, China
| | - Yinghong Tao
- Animal Center, Peking University First Hospital, Beijing, China
| | - Chen Liang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Kun Li
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Xiaoqi Yu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Xinjing Tang
- State Key Laboratory of Natural and Biomimetic Drugs, Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Jing Zhou
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, China.,Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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14
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Ge E, Fan M, Qiu H, Hu H, Tian L, Wang X, Xu G, Wei X. Ambient sulfur dioxide levels associated with reduced risk of initial outpatient visits for tuberculosis: A population based time series analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 228:408-415. [PMID: 28554030 DOI: 10.1016/j.envpol.2017.05.051] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Recent biochemical studies suggest that exogenous sulfur dioxide (SO2) at low concentrations may have been beneficial in inhibiting mycobacteria tuberculosis (TB) growth. However, there is a dearth of population-based studies. OBJECTIVES To examine the association of ambient SO2 levels and initial TB outpatient visits. METHODS In Ningbo, China, we collected all daily initial outpatient visits for TB and routinely air pollution monitoring data between January 2009 and December 2013. A time-series study was conducted by using generalized additive regression (GAM) with log-linear Poisson models to estimate the associations between daily initial TB outpatient visits and daily average concentration of SO2. Other traffic-related co-pollutants were adjusted. Sensitivity analyses were conducted to examine the relationship when 1% extreme SO2 concentrations excluded or if related to the early onsets of TB symptoms. RESULTS SO2 concentrations in Ningbo were low with a daily average of 25 μg/m3 (i.e. 0.0089 ppm). Negative associations were identified between ambient SO2 concentrations and daily initial TB outpatient visits. A 10 μg/m3 increase in SO2 at lag3 and lag0-3 days were associated with -2.0% (95%CI, -3.2, -0.8) and -4.6% (95%CI, -6.8, -2.4) changes, respectively, in initial TB outpatient visits according to single-pollutant models. The negative association became stronger when nitrogen dioxide (NO2) or particulate matter with aerodynamic diameter less than 10 μm (PM10) was adjusted in two-pollutant models. This association was higher in males vs. females and in middle-aged adults vs. the elderly. We found a stronger negative association between SO2 concentration and the initial symptom occurrence. CONCLUSION Short-term exposure to ambient SO2 was associated with reduced risk of initial TB outpatient visits, suggesting acute protective effects of low-level ambient SO2 exposure on bacteria-induced pulmonary infections.
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Affiliation(s)
- Erjia Ge
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
| | - Min Fan
- Jockey Club School of Public Health & Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Hong Qiu
- School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Howard Hu
- Dalla Lana School of Public Health, University of Toronto, Canada.
| | - Linwei Tian
- School of Public Health, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Xiaomeng Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang Province, China.
| | - Guozhang Xu
- Ningbo Center for Disease Control and Prevention, Ningbo, China.
| | - Xiaolin Wei
- Division of Clinical Public Health, and Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
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15
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Chen J, Pan T, Wan N, Sun Z, Zhang Z, Li S. Cadmium-induced endoplasmic reticulum stress in chicken neutrophils is alleviated by selenium. J Inorg Biochem 2017; 170:169-177. [PMID: 28249225 DOI: 10.1016/j.jinorgbio.2017.02.022] [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] [Received: 08/26/2016] [Revised: 02/20/2017] [Accepted: 02/22/2017] [Indexed: 01/04/2023]
Abstract
Cadmium (Cd) decreases immune function and induces apoptosis of immune cells. Selenium (Se) can antagonize some metal element toxicity including Cd. To evaluate the cytotoxicity of Cd and the chemoprotective role of Se on bird neutrophils in vitro, we incubated chicken neutrophils cells with Cadmium chloride (CdCl2) (10-6M), Sodium selenite (Na2SeO3) (10-7M), and with a mixture of Na2SeO3 (10-7M) and CdCl2 (10-6M) for 12, 24, 36, and 48h. We found that Interleukin 1β (IL-1β), Interleukin 10 (IL-10), and interferon gamma (IFN-γ) increased and interleukin 17 (IL-17), interleukin 4 (IL-4) decreased significantly in the chicken neutrophils of the Cd treatment groups. Cd significantly increased the mRNA expression levels of nuclear factor kappaB (NF-κB), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor (TNF-α), and prostaglandin E2 (PGE2) and the nitric oxide (NO) content. In addition, we demonstrated that Cd induced the apoptosis of chicken neutrophils and increased mRNA level of Bak, Cysteine-aspartic protease (Caspase)-3, Caspase-9, Caspase-12, glucose-regulated protein 78 (GRP78) and activating transcription factor 6 (ATF6), decreased mRNA level of Bcl-xl, and Ca/calmodulin-dependent protein (CaM). Moreover, the expression of NF-κB and Caspase-12 protein increased significantly in the Cd treatment groups. Se pretreatment significantly protected neutrophils against Cd-caused alterations. Our work suggested that Cd-induced immune suppression, inflammatory response, and apoptosis via endoplasmic reticulum stress (ERS). Moreover, these factors played critical roles in Se-mediated chemoprevention against Cd-induced immunotoxicity.
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Affiliation(s)
- Jianqiao Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Tingru Pan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Na Wan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Zhepeng Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China.
| | - Shu Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, People's Republic of China.
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16
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Jiang W, Li M, He F, Yao W, Bian Z, Wang X, Zhu L. Protective Effects of Asiatic Acid Against Spinal Cord Injury-Induced Acute Lung Injury in Rats. Inflammation 2016; 39:1853-1861. [DOI: 10.1007/s10753-016-0414-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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17
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Li B, Zeng M, Zheng H, Huang C, He W, Lu G, Li X, Chen Y, Xie R. Effects of ghrelin on the apoptosis of human neutrophils in vitro. Int J Mol Med 2016; 38:794-802. [PMID: 27431014 PMCID: PMC4990324 DOI: 10.3892/ijmm.2016.2668] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 06/30/2016] [Indexed: 01/19/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by lung inflammation and the diffuse infiltration of neutrophils into the alveolar space. Neutrophils are abundant, short-lived leukocytes that play a key role in immune defense against microbial infections. These cells die via apoptosis following the activation and uptake of microbes, and will also enter apoptosis spontaneously at the end of their lifespan if they do not encounter pathogens. Apoptosis is essential for the removal of neutrophils from inflamed tissues and for the timely resolution of neutrophilic inflammation. Ghrelin is an endogenous ligand for the growth hormone (GH) secretagogue receptor, produced and secreted mainly from the stomach. Previous studies have reported that ghrelin exerts anti-inflammatory effects in lung injury through the regulation of the apoptosis of different cell types; however, the ability of ghrelin to regulate alveolar neutrophil apoptosis remains largely undefined. We hypothesized that ghrelin may have the ability to modulate neutrophil apoptosis. In this study, to examine this hypothesis, we investigated the effects of ghrelin on freshly isolated neutrophils in vitro. Our findings demonstrated a decrease in the apoptotic ratio (as shown by flow cytometry), as well as in the percentage of cells with decreased mitochondrial membrane potential (ΔΨm) and in the terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-biotin nick-end labeling-positive rate, accompanied by an increased B-cell lymphoma 2/Bax ratio and the downregulation of cleaved caspase-3 in neutrophils following exposure to lipopolysaccharide (100 ng/ml). However, pre-treatment with ghrelin at a physiological level (100 nM) did not have a notable influence on the neutrophils in all the aforementioned tests. Our findings suggest that ghrelin may not possess the ability to modulate the neutrophil lifespan in vitro.
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Affiliation(s)
- Bin Li
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Mian Zeng
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Haichong Zheng
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Chunrong Huang
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Wanmei He
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Guifang Lu
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xia Li
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yanzhu Chen
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Ruijie Xie
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510080, P.R. China
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18
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Huang Y, Tang C, Du J, Jin H. Endogenous Sulfur Dioxide: A New Member of Gasotransmitter Family in the Cardiovascular System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8961951. [PMID: 26839635 PMCID: PMC4709694 DOI: 10.1155/2016/8961951] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/28/2015] [Indexed: 01/20/2023]
Abstract
Sulfur dioxide (SO2) was previously regarded as a toxic gas in atmospheric pollutants. But it has been found to be endogenously generated from metabolism of sulfur-containing amino acids in mammals through transamination by aspartate aminotransferase (AAT). SO2 could be produced in cardiovascular tissues catalyzed by its synthase AAT. In recent years, studies revealed that SO2 had physiological effects on the cardiovascular system, including vasorelaxation and cardiac function regulation. In addition, the pathophysiological effects of SO2 were also determined. For example, SO2 ameliorated systemic hypertension and pulmonary hypertension, prevented the development of atherosclerosis, and protected against myocardial ischemia-reperfusion (I/R) injury and isoproterenol-induced myocardial injury. These findings suggested that endogenous SO2 was a novel gasotransmitter in the cardiovascular system and provided a new therapy target for cardiovascular diseases.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100191, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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19
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Wang XB, Du JB, Cui H. Sulfur dioxide, a double-faced molecule in mammals. Life Sci 2014; 98:63-7. [DOI: 10.1016/j.lfs.2013.12.027] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 12/07/2013] [Accepted: 12/20/2013] [Indexed: 12/31/2022]
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