Transport of the Organic Cation N1-Methylnicotinamide by the Rabbit Proximal Tubule. I. Accumulation in the Isolated Nonperfused Tubule1'2

Prinffii in U.S.A. ABBREVIATIONS: TEA, tetraethylammonium; NMN, N1-methylnicotinamide; PAH, p-aminohippurate; T/M, tubular cell water over medium concentration ratio; HPLC, high performance liquid chromatography

Transport of the Organic Cation N1-Methylnicotinamide by the Rabbit Proximal Tubule. II. Reabsorption and Secretion in the Isolated Perfused 1 2

ABSTRACT The mechanisms involved in the transport of the organic cation N1-methylnicotinamide (NMN) were investigated in the isolated perfused rabbit S2 proximal tubule