Study of isolated perfused tubular segments allowed study of each of the different nephron segments independently. Study of isolated perfused tubular segments.

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Study of isolated perfused tubular segments allowed study of each of the different nephron segments independently. Study of isolated perfused tubular segments allowed study of each of the different nephron segments independently. (A) A photomicrograph of a portion of a rabbit proximal convoluted tubule during perfusion. (B) A schematic diagram of the technique. One end of the dissected tubule was connected to a micropipette, which was used to perfuse the lumen, and the other end was connected to a collection micropipette. Both the luminal fluid and the peritubular fluid could be controlled to assess tubular transport characteristics. A is reprinted with permission from Burg MB: Perfusion of isolated renal tubules. Yale J Biol Med 45: 321–326, 1972. Melanie P. Hoenig, and Mark L. Zeidel CJASN 2014;9:1272-1281 ©2014 by American Society of Nephrology