Lung responses to secondary endotoxin challenge in rats exposed to pig barn air

Table 1 Semi-quantitative evaluation of histological inflammation in lung sections.

Treatment groups	Peri-vascular inflammation	Peri-bronchiolar inflammation	Peri-vascular edema
Control	- to +	- to +	- to+
Control+LPS	+ + to + + +	+ + to+ + +	+ to+ +
1 day exposure	+ + to+ + +	+ + to + + + +	+ + + +
1 day exposure+LPS	+ + to + + + +	+ + to + + + +	+ + to + + + +
5 day exposure	+ to + + +	+ to + + +	+ + to + + +
5 day exposure + LPS	+ + to + + +	+ +	+ + to + + +

ISSN: 1745-6673