Production of high level of reactive oxygen species in Barrett’s metaplasia tissue.

<p>Quantitative determination of reactive oxygen species (hydrogen peroxide) from supernatants of Barrett’s metaplasia tissue (BT) and adjacent normal mucosal tissue (NT) was measured by commercial kit (Bioxytech H<sub>2</sub>O<sub>2</sub>-560). The level of hydrogen peroxide was significantly elevated in supernatants from BT compared with those from adjacent NT (<i>P</i> = 0.017).</p>