The aim of this study was to investigate the time course of lung injury in rats during acute
and subchronic ozone exposure and during postexposure recovery. Rats were continuously …

To compare the extent and time course of pulmonary injury and repair in 3 rodent species,
rats, mice and guinea pigs were continuously exposed for 3, 7, 28, and 56 days to 400 and …

Controlled human and epidemiology studies have demonstrated that during repeated
exposure to ozone (O 3) attenuation of lung function responses may occur. It is yet unknown …

To document the time course of the inflammatory response and epithelial injury in the lung
following and acute ozone exposure, rats were exposed to 1.0 ppm ozone for periods …

This study involves the analysis of the sequence of changes in lung epithelial permeability,
free cells in the airways, prostaglandin E2 (PGE2) levels, polymorphonuclear leukocyte …

Male Fischer 344 rats were exposed to 0.5 ppm ozone for 20 hr/day, 7 days/week, for 52
weeks after which they were allowed to recover in clean filtered air for 12 weeks. Pulmonary …

In previous work we have shown that rats exposed to 0.8 m ozone and 14.4 ppm NO2 for 6 h
daily develop progressive bronchiolitis and pulmonary fibrosis after about 8-10 wk of …

Morphometric techniques were used to examine cellular and tissue changes occurring in
male and female rat lungs exposed to ozone for a prolonged time. F344/N rats were …

Morphological studies were made of the effect of 0.8 ppm ozone on lungs of 70-day-old
male rats at the end of a 3-day exposure, after 6, 9, or 30 days of recovery, and at the end of …

The purpose of this research is to describe the initial processes of injury and repair following
exposure to levels of ozone (Os) that often exist in the polluted air of major cities. Previous …