کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9037352 | 1133425 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CC16 as a marker of lung epithelial hyperpermeability in an acute model of rats exposed to mainstream cigarette smoke
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: CC16 as a marker of lung epithelial hyperpermeability in an acute model of rats exposed to mainstream cigarette smoke CC16 as a marker of lung epithelial hyperpermeability in an acute model of rats exposed to mainstream cigarette smoke](/preview/png/9037352.png)
چکیده انگلیسی
The Clara cell secretory protein (CC16), which is produced along the tracheal-bronchial tree, has been shown to be a sensitive marker for the detection of lung hyperpermeability. Cigarette smoke inhalation has been associated with increased lung epithelial permeability. In this study we investigated the changes in CC16 in serum and bronchoalveolar lavage fluid (BALF) from female Sprague Dawley rats after a single exposure (2 Ã 1 h) to diluted mainstream cigarette smoke (MS) from the Reference Cigarette 2R4F. Rats were nose-only exposed to MS at concentrations of 0 (sham exposure), 250, 500, 750, 1000 or 1250 μg total particulate matter per liter. At 2, 4, 15 and 24 h after exposure, serum and BALF-samples were collected. CC16 was determined in BALF and serum. Albumin in BALF, another marker for lung permeability was also determined. A trend towards a lower CC16 recovery was observed in BALF from smoke-exposed rats. The CC16 concentration in serum showed a marked (up to five-fold) concentration- and time-dependent increase after MS exposure. The increase of CC16 in serum was most prominent at the early timepoints, i.e. 2 and 4 h after exposure, and a return to baseline concentrations was obvious at 24 h after exposure. The effect of MS exposure on the amount of albumin in BALF was limited (up to 60% increase). This study clearly showed that CC16 is a good marker for the assessment of the increased permeability of the lung/blood barrier after MS-exposure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Toxicology Letters - Volume 159, Issue 2, 15 November 2005, Pages 115-123
Journal: Toxicology Letters - Volume 159, Issue 2, 15 November 2005, Pages 115-123
نویسندگان
E. Van Miert, X. Dumont, A. Bernard,