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学科主题: 公共卫生
题名:
Size-fractioned ultrafine particles and black carbon associated with autonomic dysfunction in subjects with diabetes or impaired glucose tolerance in Shanghai, China
作者: Sun, Yitong1,2,3; Song, Xiaoming1,2,3; Han, Yiqun4; Ji, Yunfang5; Gao, Shuna5; Shang, Yu6; Lu, Shou-en7; Zhu, Tong4; Huang, Wei1,2,3
关键词: Ultrafine particulates ; Black carbon ; Traffic pollution ; Heart rate variability ; Diabetes ; Impaired glucose tolerance
刊名: PARTICLE AND FIBRE TOXICOLOGY
发表日期: 2015-03-25
DOI: 10.1186/s12989-015-0084-6
卷: 12
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Toxicology
研究领域[WOS]: Toxicology
关键词[WOS]: HEART-RATE-VARIABILITY ; AMBIENT AIR-POLLUTION ; DIET-INDUCED OBESITY ; CARDIOVASCULAR-DISEASE ; METABOLIC SYNDROME ; ATHEROSCLEROSIS RISK ; EXHAUST INHALATION ; CARDIAC RESPONSES ; FINE PARTICLES ; EXPOSURE
英文摘要:

Background: Particles in smaller size fractions, such as ultrafine particles (UFPs) (with diameter less than 100 nm), has become of significant cardiovascular health concerns. However, the biological plausibility underlying potential relationship between UFPs and cardiovascular outcomes is less studied.

Methods: Fifty-three subjects living in Shanghai with type-2 diabetes (T2D) or impaired glucose tolerance (IGT) were followed for autonomic dysfunctions with three repeated measurements in 2010. Minute-to-minute concentrations of ambient particles in small size-fractions (5-560 nm), black carbon (BC), sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O-3) were monitored using a central monitoring laboratory equipped with real-time air monitors close to residential area of the subjects. Generalized linear mixed models, with adjustment for individual risk factors, were applied to assess the effects of air pollution on autonomic dysfunctions in subjects.

Results: Our study showed that significant reduction in the standard deviation of all NN intervals (SDNN) ranging from 3.4% to 8.1% were associated with interquartile range (IQR) increase of number concentration of particles (PNC) in size fractions <100 nm, and reduction from 1.3% to 4.6% with particles of diameter 100-200 nm, in subjects with diabetes or glucose tolerance. Increased exposure to traffic-related pollutants BC, NO2 and CO, and combustion pollutant SO2, were also significantly associated with HRV reductions. However, no effect was observed for particles in size fraction of 200-560 nm and O-3. Diabetic risk factor and gender appeared to have significant interactions on autonomic dysfunction associated with UFPs and traffic pollution exposures in certain time-window.

Conclusions: Our results suggest that underlying diabetes or impaired glucose tolerance may confer reduced autonomic function of heart due to traffic pollution exposure.

语种: 英语
所属项目编号: 2008AA062503 ; 201009032 ; 21190051 ; 2P30ES005022-21
项目资助者: Ministry of Science and Technology of China ; Ministry of Environmental Protection of China ; National Science Foundation of China ; US National Institute of Environmental Health and Safety
WOS记录号: WOS:000354517400001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/64411
Appears in Collections:北京大学公共卫生学院_期刊论文

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作者单位: 1.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth Sci, Beijing 100191, Peoples R China
2.Peking Univ, Sch Publ Hlth, Inst Environm Med, Beijing 100191, Peoples R China
3.Minist Educ, Key Lab Mol Cardiovasc Sci, Beijing 100191, Peoples R China
4.Peking Univ, Coll Environm Sci & Engn, Beijing 100191, Peoples R China
5.Ctr Dis Control & Prevent Luwan Dist, Shanghai, Peoples R China
6.Shanghai Univ, Inst Environm Pollut & Hlth, Shanghai, Peoples R China
7.UMDNJ, Dept Biostat, Sch Publ Hlth, Piscataway, NJ USA

Recommended Citation:
Sun, Yitong,Song, Xiaoming,Han, Yiqun,et al. Size-fractioned ultrafine particles and black carbon associated with autonomic dysfunction in subjects with diabetes or impaired glucose tolerance in Shanghai, China[J]. PARTICLE AND FIBRE TOXICOLOGY,2015,12.
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