Biological inflammatory and metabolic effects of petro- and bio-diesel exhaust particulate matter emissions from a light-duty diesel engine.
-
2015-06-01
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Sustainability of our transportation system depends on making well-informed choices on
vehicle energy sources for human and goods mobility. Motor vehicles operating on fossil
fuels are a significant source of air pollution risk and challenge the ability of humans to
mitigate climate change. Biodiesel is a low carbon fuel substitute for petroleum diesel,
but relatively little is known about how exposure to biodiesel combustion particles affects
chronic diseases such as asthma and type II diabetes mellitus (T2DM). This study
examined the effect of particulate matter (PM) generated by the combustion of
commercially available petrodiesel and soybean biodiesel fuels on inflammation and
metabolic dysfunction using two types of in vivo experiments. To evaluate inflammation
response, oropharyngeal 3-day exposures of females to B20 (20% biodiesel/80%
petrodiesel by volume) and B0 (100% petrodiesel) particles from a light-duty diesel
engine operating on a semi-transient cycle were followed by lung fluid and tissue
biochemical analysis. Prenatal exposure effects on offspring growth and metabolism were
evaluated by maternal exposure during gestational days 9-17 (delivery 18-20 days) and
monitoring offspring for 12 months. Prenatal exposure to exhaust PM from petrodiesel
fuel combustion had different metabolic effects in male vs. female offspring. For B20
exhaust PM, the number of offspring was too low to detect differences. The results of this
study suggest that males and females may have differential risk for metabolic dysfunction
after prenatal exposure during gestation. Future studies should be conducted to quantify
sex-specific effects on exposure to vehicle exhaust PM from biodiesel fuel blends.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: