[The effect of acetylsalicylic acid on the transmural potential difference of gastric mucosa of infants, adolescents and adults].

The transmural electric potential difference (PD) of the gastric mucosa was investigated in children, teen-agers, and adults. Acetylsalicylic acid, a well known barrier breaker, causes in adults a characteristic decrease of the gastric PD. This effect in teen-agers is considerably weaker than in adults, while in children there is no significant decrease of the potential difference after local acetylsalicylic acid application.