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DOI | 10.1007/s12012-016-9360-4 |
Acrolein Inhalation Alters Myocardial Synchrony and Performance at and Below Exposure Concentrations that Cause Ventilatory Responses | |
Thompson, Leslie C.; Ledbetter, Allen D.; Haykal-Coates, Najwa; Cascio, Wayne E.; Hazari, Mehdi S.; Farraj, Aimen K. | |
发表日期 | 2017-04-01 |
ISSN | 1530-7905 |
卷号 | 17期号:2页码:97-108 |
英文摘要 | Acrolein is an irritating aldehyde generated during combustion of organic compounds. Altered autonomic activity has been documented following acrolein inhalation, possibly impacting myocardial synchrony and function. Given the ubiquitous nature of acrolein in the environment, we sought to better define the immediate and delayed functional cardiac effects of acrolein inhalation in vivo. We hypothesized that acrolein inhalation would increase markers of cardiac mechanical dysfunction, i.e., myocardial dyssynchrony and performance index in mice. Male C57Bl/6J mice were exposed to filtered air (FA) or acrolein (0.3 or 3.0 ppm) for 3 h in whole-body plethysmography chambers (n = 6). Echocardiographic analyses were performed 1 day before exposure and at 1 and 24 h post-exposure. Speckle tracking echocardiography revealed that circumferential strain delay (i.e., dyssynchrony) was increased at 1 and 24 h following exposure to 3.0 ppm, but not 0.3 ppm, when compared to pre-exposure and/or FA exposure. Pulsed wave Doppler of transmitral blood flow revealed that acrolein exposure at 0.3 ppm, but not 3.0 ppm, increased the Tei index of myocardial performance (i.e., decreased global heart performance) at 1 and 24 h post-exposure compared to pre-exposure and/or FA exposure. We conclude that short-term inhalation of acrolein can acutely modify cardiac function in vivo and that echocardiographic evaluation of myocardial synchrony and performance following exposure to other inhaled pollutants could provide broader insight into the health effects of air pollution. |
英文关键词 | Acrolein;Echocardiography;Myocardial strain;Myocardial dyssynchrony;Tei index |
语种 | 英语 |
WOS记录号 | WOS:000396022700001 |
来源期刊 | CARDIOVASCULAR TOXICOLOGY
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/62015 |
作者单位 | US EPA, Environm Publ Hlth Div, 109 TW Alexander Dr,Mail Code B105-02, Res Triangle Pk, NC 27711 USA |
推荐引用方式 GB/T 7714 | Thompson, Leslie C.,Ledbetter, Allen D.,Haykal-Coates, Najwa,et al. Acrolein Inhalation Alters Myocardial Synchrony and Performance at and Below Exposure Concentrations that Cause Ventilatory Responses[J]. 美国环保署,2017,17(2):97-108. |
APA | Thompson, Leslie C.,Ledbetter, Allen D.,Haykal-Coates, Najwa,Cascio, Wayne E.,Hazari, Mehdi S.,&Farraj, Aimen K..(2017).Acrolein Inhalation Alters Myocardial Synchrony and Performance at and Below Exposure Concentrations that Cause Ventilatory Responses.CARDIOVASCULAR TOXICOLOGY,17(2),97-108. |
MLA | Thompson, Leslie C.,et al."Acrolein Inhalation Alters Myocardial Synchrony and Performance at and Below Exposure Concentrations that Cause Ventilatory Responses".CARDIOVASCULAR TOXICOLOGY 17.2(2017):97-108. |
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