Research Article

Changes in Gastric Smooth Muscle Cell Contraction during Pregnancy: Effect of Estrogen

Figure 2

Estrogen-induced production of nitric oxide (NO) in GSMC from early- and late-pregnant rats. Total NO metabolites (nitrate + nitrite) were measured as indicators for nitric oxide (NO) levels. Treatment of GSMC with estrogen (E2) significantly increased NO levels in GSMC. Values shown are representative of three independent experiments performed in triplicate. Samples were collected from 6 early-pregnant and 7 late-pregnant rats. measurements in early-pregnant rats are significantly different (P < 0.05) from corresponding measurements in late-pregnant rats.