- Letter to the Editor
- Open Access
Comment on the Nanoparticle Conclusions in Crüts et al. (2008), "Exposure to diesel exhaust induces changes in EEG in human volunteers"
© Valberg et al; licensee BioMed Central Ltd. 2008
- Received: 02 May 2008
- Accepted: 24 July 2008
- Published: 24 July 2008
A recent publication in this journal reported interesting changes in electroencephalographic (EEG) waves that occurred in 10 young, male volunteers following inhalation for one hour of elevated levels of diesel-engine exhaust fumes . The authors then proposed a chain of causal events that they hypothesized underlay their observed EEG changes. Their reasoning linked the observed results to nanoparticles in diesel-engine exhaust (DEE), and went on to suggest that associations between changes in ambient particulate matter (PM) levels and changes in health statistics might be due to the effects of diesel-engine exhaust (DEE) nanoparticles on EEG. We suggest that the extrapolations of the Crüts et al. EEG findings to casual mechanisms about how ambient levels of DEE particulate might affect electrical signals in the brain, and subsequently to how DEE particulate might alter disease risk, are premature.
- Diesel Engine
- Diesel Exhaust
- Brain Electrical Activity
- Sham Exposure
- Elemental Carbon Concentration
The analysis in this "Letter to the Editor" was supported in part by Navistar, Incorporated.
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