Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1289/EHP2311 |
Concentrated Ambient PM2.5-Induced Inflammation and Endothelial Dysfunction in a Murine Model of Neural IKK2 Deficiency | |
Chen, Minjie1,2; Qin, Xiaobo1,3; Qiu, Lianglin1,4; Chen, Sufang1; Zhou, Huifen1,5; Xu, Yanyi2; Hu, Ziying1,6; Zhang, Yuhao7; Cao, Qi8; Ying, Zhekang1,2 | |
2018-02-01 | |
发表期刊 | ENVIRONMENTAL HEALTH PERSPECTIVES |
ISSN | 0091-6765 |
EISSN | 1552-9924 |
出版年 | 2018 |
卷号 | 126期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | BACKGROUND: Exposure to ambient fine particulate matter (PM2.5) is associated with cardiovascular mortality, but underlying pathophysiologic mechanisms are not fully understood. Hypothalamic inflammation, characterized by the activation of Inhibitor kappaB kinase 2/Nuclear factor kappaB (IKK2/NF-kappa B) signaling pathway, may play an important role in the pathogenesis of cardiovascular diseases. We recently demonstrated that hypothalamic inflammation is increased in mice exposed to concentrated ambient PM2.5 (CAP). OBJECTIVES: In the present study, we used a neuron-specific IKK2 knockout mouse model to examine the role of neural IKK2 expression and hypothalamic inflammation in the pathophysiologic effects of PM2.5. METHODS: We assessed inflammatory and vascular responses in Nestin-creIKK2(flox/flox) (IKK2(Nen-KO)) and littermate Nestin-creIKK2(flox/+) (control) mice after 4 mo of exposure to filtered air (FA) or CAP. RESULTS: CAP exposure was associated with significantly higher tumor necrosis factor-alpha (TNF alpha) and interleukin (IL)-6 mRNA in the hypothalamus of control mice, but not IKK2(Nen-KO) mice. in addition, CAP exposure induced increases in bronchoalveolar lavage fluid (BALF) leukocytes, pulmonary macrophage infiltration and IL -6 expression, plasma TNF alpha and IL-1 beta levels, adipose macrophage infiltration and IL-1 beta expression, and endothelial dysfunction were reduced or absent in IKK2(Nen-KO) mice compared with controls. CONCLUSIONS: Our findings support a role of neural IKK2 in CAP exposure induced local and systemic pro-inflammatory cytokine expression, pulmonary and adipose inflammation, and endothelial dysfunction, thus providing insight into pathophysiologic mechanisms that may mediate effects of PM2.5 exposure. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000424500800006 |
WOS关键词 | PARTICULATE AIR-POLLUTION ; SYMPATHETIC-NERVOUS-SYSTEM ; NF-KAPPA-B ; HEART-RATE-VARIABILITY ; OXIDATIVE STRESS ; SUBCHRONIC EXPOSURES ; ULTRAFINE PARTICLES ; EPITHELIAL-CELLS ; BLOOD-PRESSURE ; MATTER |
WOS类目 | Environmental Sciences ; Public, Environmental & Occupational Health ; Toxicology |
WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Toxicology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23829 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Maryland, Sch Med, Dept Med, Cardiol Div, Baltimore, MD 21201 USA; 2.Fudan Univ, Sch Publ Hlth, Dept Environm Hlth, Shanghai, Peoples R China; 3.Peoples Hosp Guangxi Zhuang Autonomous Reg, Dept Electrocardiog, Nanning, Peoples R China; 4.Nantong Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Nantong, Peoples R China; 5.Hubei Univ Sci & Technol, Dept Pathol, Xianning, Hubei, Peoples R China; 6.Zhengzhou Univ, Peoples Hosp, Dept Endocrinol, Henan Prov Peoples Hosp, Zhengzhou, Henan, Peoples R China; 7.Fudan Univ, Zhongshan Hosp, Dept Neurol, Shanghai, Peoples R China; 8.Univ Maryland, Sch Med, Dept Diagnost Radiol & Nucl Med, Baltimore, MD 21201 USA |
推荐引用方式 GB/T 7714 | Chen, Minjie,Qin, Xiaobo,Qiu, Lianglin,et al. Concentrated Ambient PM2.5-Induced Inflammation and Endothelial Dysfunction in a Murine Model of Neural IKK2 Deficiency[J]. ENVIRONMENTAL HEALTH PERSPECTIVES,2018,126(2). |
APA | Chen, Minjie.,Qin, Xiaobo.,Qiu, Lianglin.,Chen, Sufang.,Zhou, Huifen.,...&Ying, Zhekang.(2018).Concentrated Ambient PM2.5-Induced Inflammation and Endothelial Dysfunction in a Murine Model of Neural IKK2 Deficiency.ENVIRONMENTAL HEALTH PERSPECTIVES,126(2). |
MLA | Chen, Minjie,et al."Concentrated Ambient PM2.5-Induced Inflammation and Endothelial Dysfunction in a Murine Model of Neural IKK2 Deficiency".ENVIRONMENTAL HEALTH PERSPECTIVES 126.2(2018). |
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