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Figure 3 | Respiratory Research

Figure 3

From: Overexpression of endothelial nitric oxide synthase suppresses features of allergic asthma in mice

Figure 3

Immunohistochemistry of sections from lung tissue with antibodies directed against human eNOS. A) Control mice: Only a faint background staining is present. B) eNOS transgenic mice: eNOS is localized in the alveolar septa in lungs. C) eNOS transgenic mice: eNOS is present within the septa. Arrowheads point at alveolar capillaries. No signal is seen in the type I cells lining the alveoli (double arrowheads). D) eNOS transgenic mice: No signal is seen in the cells from the bronchiole (Br), while the endothelial cells from the small vessel accompanying the bronchiole show staining (arrow). Original magnifications: 100× (A, B, D) and 630× (C). Experiments have been performed at least three times in which similar results were obtained.

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