- Aldosterone and tight junctions: modulation of claudin-4 phosphorylation in renal collecting duct cells. Le Moellic, C., Boulkroun, S., González-Nunez, D., Dublineau, I., Cluzeaud, F., Fay, M., Blot-Chabaud, M., Farman, N. Am. J. Physiol., Cell Physiol. (2005)