Figure 1
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2121-5-14/MediaObjects/12860_2003_Article_90_Fig1_HTML.jpg)
Primary cell cultures human smooth muscle cells (A-C, Bax): (A) in control cells (magnification 400×), (B) in the presence of 10 μM xanthurenic acid (magnification 1260×), (C) in the presence of 20 μM xanthurenic acid (magnification 630×): mitochondria stained with MitotrackerRos (red staining), Bax (green), yellow-colocalization of Bax with mitochondria.