[Testicular nodules of infertile men and contrast enhanced ultrasonography: preliminary study].

Introduction: The incidence of testicular nodules discovered during infertility evaluation is increasing. These nodules are suspicious of malignancy. There is no paraclinical examination which allows histological orientation to these nodules.

Influence of motilin on gastric fundus tone and on meal-induced satiety in man: role of cholinergic pathways.

Background: Motilin agonists are strong gastroprokinetics, but their impact on symptoms in delayed gastric emptying has been disappointing. It has been speculated that it is due to the contractile effect of motilin agonists on the proximal stomach, but the pathway involved and the symptomatic consequences have been incompletely elucidated.

Aims: To study whether motilin enhances proximal stomach tone and enhances meal-induced satiety and to evaluate whether this effect involves a cholinergic pathway.