Synthesis of type I and type III collagens by rat cardiac fibroblasts was stimulated when the cells were cultured under 95% N 2 /5% CO 2 for one hour followed by incubation under normoxic conditions for 24 hours. The stimulative effect was attenutated by the presence of atrial natriuretic peptide (A
The effects of chronic ozone exposure on pulmonary collagen content and collagen synthesis in rats
β Scribed by C. Filipoicz; R. McCauley
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 367 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0260-437X
No coin nor oath required. For personal study only.
β¦ Synopsis
Male rats were exposed to 0.125,0.25 or 0.5 ppm of ozone or clean air for up to 1 year. During this exposure period there was little evidence for collagen accumulation in the lungs. However, the rate of incorporation of tritriated proline into both lung collagen and total lung protein was accelerated. These data suggest that exposure to ozone under these conditions results in an increase in the turnover of collagen as well as other lung proteins.
period of 1 year, ten rats from each group were removed and transported to Wayne State University
π SIMILAR VOLUMES
## Abstract The effect of exposure to three concentrations of diesel exhaust on several heptic and pulmonary activities has been tested. After one year of exposure, the ability of liver microsomes to oxidize benzo[Ξ±]pyrene to more polar metabolites was not increased. Further studies with liver micr
Animals, including rats, have a predisposition to process and use spatial information to organize and guide behavior. The hippocampus and related structures are critically involved in this function, and, consequently, it has been proposed that one function of the hippocampus is to construct ''spatia
Male Wistar rats were exposed continuously for 1 or 2 months to 3.5 ppm NO2. Levels of histamine and serotonin in lung, noradrenaline in hypothalamus, corticosterone and thyroxine in serum and catecholamines in the adrenals were estimated. No significant changes were observed in lung histamine and s
## Abstract The effect of chronic exposure to 100 ppm (0.01%) CO on pituitaryβadrenal activity was evaluated by measuring serum corticosterone and brain bioamine levels in the rat. Exposure to CO for 1 month induced a decrease in the brain serotonin levels. Serum corticosterone, brain dopamine and