Figure 1

Effect of LPS and hydrogen sulfide inhalation on lung architecture. As controls, mice received phosphate buffered saline (PBS, intranasally) and were kept in room air (PBS + air, A) or in 80 ppm H₂S (PBS + H₂S, B) for 6 h (plus 1 h pretreatment). LPS-treated mice (LPS treatment, i.n.) were either kept in room air (LPS + air, C) or in 80 ppm H₂S (LPS + H₂S, D) for 6 h (plus 1 h pretreatment). Sections from the left lung lobe were stained with hematoxylin and eosin. Representative pictures are shown for each experimental group (magnification = 200X).