Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1990-1-29
|
pubmed:abstractText |
Bronchoalveolar lavage (BAL) has been performed in 22 healthy nonsmoking male volunteers after exposure to 8 ppm SO2 (20 mg/m3). The exposure level exceeds the US Short-Term Exposure Limit (STEL) of 5 ppm, but occurs as peak exposures in industrial indoor environments. Exposures were made during light work on a bicycle ergometer in an environmental exposure chamber for 20 min. BAL was performed 2 wk or more before exposure and 4, 8, 24, and 72 h after exposure in eight subjects at each time interval. Four hours after exposure significant increases were found in the numbers of lysozyme-positive macrophages, lymphocytes, and mast cells (p less than 0.02 to 0.05). Lymphocytes, lysozyme-positive macrophages, total count of alveolar macrophages, and total cell number increased to peak values 24 h after exposure (p less than 0.02 to 0.05). Seventy-two hours after exposure the cell numbers and distribution had returned to normal. The time course of the cell reactions found in BAL fluid after controlled SO2 exposure represents a new and previously not reported response to a noxious gas.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
AIM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0003-0805
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
140
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1828-31
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:2604308-Adult,
pubmed-meshheading:2604308-Bronchi,
pubmed-meshheading:2604308-Bronchoalveolar Lavage Fluid,
pubmed-meshheading:2604308-Bronchoscopy,
pubmed-meshheading:2604308-Cell Count,
pubmed-meshheading:2604308-Humans,
pubmed-meshheading:2604308-Lymphocytes,
pubmed-meshheading:2604308-Macrophages,
pubmed-meshheading:2604308-Male,
pubmed-meshheading:2604308-Mast Cells,
pubmed-meshheading:2604308-Monocytes,
pubmed-meshheading:2604308-Muramidase,
pubmed-meshheading:2604308-Sulfur Dioxide,
pubmed-meshheading:2604308-Time Factors
|
pubmed:year |
1989
|
pubmed:articleTitle |
Cell response in bronchoalveolar lavage fluid after exposure to sulfur dioxide: a time-response study.
|
pubmed:affiliation |
Department of Lung Medicine, University Hospital, Umeå, Sweden.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|