Figure 1.

The level of hydrogen sulphide after 1 h of incubation with l-cysteine in the experimental group. The experiments were carried out in gastric mucosa homogenates in three experimental groups (Intact, water immersion restraint stress (WRS), WRS + NaHS), with l-cysteine as a main endogenous substrate for the hydrogen sulphide-producing enzymes. The data represent the mean value from two independent experiments. Statistical analysis was performed using the Student’s t-test (* p < 0.05).