Inhalation of poorly soluble particles: II. Influence of particle surface area on inflammation and clearance
Tran, CL; Buchanan, D; Cullen, RT; Searl, A; Jones, AD; Donaldson, K
HERO ID
13071
Reference Type
Journal Article
Year
2000
Language
English
PMID
| HERO ID | 13071 |
|---|---|
| In Press | No |
| Year | 2000 |
| Title | Inhalation of poorly soluble particles: II. Influence of particle surface area on inflammation and clearance |
| Authors | Tran, CL; Buchanan, D; Cullen, RT; Searl, A; Jones, AD; Donaldson, K |
| Journal | Inhalation Toxicology |
| Volume | 12 |
| Issue | 12 |
| Page Numbers | 1113-1126 |
| Abstract | In this article the volumetric overload hypothesis, which predicts the impairment of clearance of particles deposited in the lung in terms of particle volume, is reevaluated. The degree to which simple expressions of retained lung burden explain pulmonary responses to overload was investigated using data from a series of chronic inhalation experiments on rats with two poorly soluble dusts, titanium dioxide and barium sulfate. The results indicated that the difference between the dusts in the level of inflammation and translocation to the lymph nodes could be explained most simply when the lung burden was expressed as total particle surface area. The shape of the statistical relationship for both lung responses indicated the presence of a threshold at approximately 200-300 cm2 of lung burden. On the basis of this and other similar results, a hypothesis regarding a generic mechanism for the impairment of clearance and associated lung responses is proposed for such 'low-toxicity' dusts. |
| Doi | 10.1080/08958370050166796 |
| Pmid | 11114784 |
| Wosid | WOS:000165804500002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Relationship(s) |
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