Effects on heart rate variability by artificially generated indoor nano-sized particles in a chamber study
| Autor: | Aneta Wierzbicka, Inger Hagerman, Mats Bohgard, Anders Gudmundsson, Margareta Berglund, Katrin Dierschke, Bo A. G. Jönsson, Christina Isaxon, Ulla B Andersson, Joakim Pagels, Yiyi Xu, Jörn Nielsen, Eva Assarsson |
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| Rok vydání: | 2014 |
| Předmět: |
Atmospheric Science
medicine.medical_specialty Nano particles Chemistry HRV Cardiovascular control Cardiovascular Physiological responses Burning candles Toxicology Autonomic Environmental Science(all) Meteorology and Atmospheric Sciences Internal medicine Heart rate medicine Cardiology Particle Heart rate variability Nano sized control Practical implications Airborne particles General Environmental Science |
| Zdroj: | Atmospheric Environment; 88, pp 165-171 (2014) |
| ISSN: | 1352-2310 |
| DOI: | 10.1016/j.atmosenv.2014.02.003 |
| Popis: | Background: Airborne particles are associated with increased morbidity and mortality due to respiratory and cardiovascular diseases in polluted areas. There is a growing interest in nano-sized particles with diameter < 100 nm and their potential health effects. Heart rate variability (HRV) is a noninvasive method for cardiovascular risk prediction in high prevalent groups. Aim of study: The aim was to evaluate the impact of nano-sized indoor air particles on HRV for healthy and adult females. Methods: All exposures were performed as controlled chamber experiments with particle exposure from burning candles, terpene + ozone reactions or filtered air in a double-blind cross over design. Twenty-two healthy females were investigated during 10 min periods at different exposures and the reactivity in high frequency (HF) spectral band of HRV were computed. Results: Heart rate was unchanged from baseline values in all groups during all experimental settings. HF power of HRV tended to increase during exposure to particles from burning candle while particles from terpene + ozone reactions tended to decrease HF power. Conclusions: Exposure to nano-sized particles of burning candles or terpene + ozone reactions results in different patterns of heart rate variability, with signs of altered autonomic cardiovascular control. Practical implications: This study indicates that the HRV method may be used for information on physiological responses of exposure to different nano-sized particles and contribute to the understanding of mechanisms behind health effects of particle exposures. (C) 2014 The Authors. Published by Elsevier Ltd. |
| Databáze: | OpenAIRE |
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