Johann Morelle is nephrologist at the Cliniques universitaires Saint-Luc, Brussels, Belgium, where he is involved in the care of home dialysis patients (peritoneal and home hemodialysis).
Johann Morelle is also researcher in the laboratory of nephrology of the Université catholique de Louvain, in the group of Olivier Devuyst. The group investigates the role and regulation of aquaporin water channels, and the relationship between structural and functional changes in the peritoneal membrane of peritoneal dialysis patients.