1. Luminal signal in tubuloglomerular feedback: What about potassium?
Volker Vallon, Hartmut Osswald, Roland C. Blantz, Scott Thomson 
Kidney International 
Volume 54, Pages S177-S179 (September 1998)
DOI: /j x
Copyright © 1998 International Society of Nephrology Terms and Conditions

2. Figure 1
K+-recycling, tubular reabsorption, and tubuloglomerular feedback. Changing late proximal tubular flow rate (VLP) alters predominantly the load of Na+ and Cl- to the thick ascending limb of Henle's loop (TALH) with minor changes in K+ delivery. The observed changes in early distal tubular [K+] despite significant alteration in K+-dependent reabsorption of Na+ and Cl- (indicated by line thickness) may reflect adaptation of K+ recycling: adenosine triphosphate (ATP)-sensitive K+ channels (KATP), varying their activity according to the transport-dependent metabolic status of TALH, may contribute to load-dependent tubular reabsorption and macula densa control of single-nephron glomerular filtration rate (SNGFR).
Kidney International  , S177-S179DOI: ( /j x)
Copyright © 1998 International Society of Nephrology Terms and Conditions