1. Hemodialysis and L-arginine, but not D-arginine, correct renal failure-associated endothelial dysfunction 
Malcolm F. Hand, William G. Haynes, David J. Webb 
Kidney International 
Volume 53, Issue 4, Pages (April 1998)
DOI: /j x
Copyright © 1998 International Society of Nephrology Terms and Conditions

2. Figure 1
Effect of norepinephrine on vein size in 12 patients with end-stage renal failure (•) and 8 age and sex matched control subjects (○). There is no significant difference in responsiveness to infusion of norepinephrine (P = 0.96).
Kidney International  , DOI: ( /j x)
Copyright © 1998 International Society of Nephrology Terms and Conditions

3. Figure 2
Percentage reversal of venoconstriction by acetylcholine (A) in 8 patients before hemodialysis (□) and 8 control subjects (○) and (B) in 8 patients before (□) and after hemodialysis (▪). Before hemodialysis the response is impaired compared with that of control subjects (P = 0.01) and is enhanced by hemodialysis (P = 0.001).
Kidney International  , DOI: ( /j x)
Copyright © 1998 International Society of Nephrology Terms and Conditions

4. Figure 3
Percentage reversal of venoconstriction by glyceryl trinitrate in 8 patients with end-stage renal failure before (□) and after hemodialysis (▪), and in 8 control subjects (○). There are no significant differences between the response before and after hemodialysis (P = 0.88) or to control subjects (P = 0.52).
Kidney International  , DOI: ( /j x)
Copyright © 1998 International Society of Nephrology Terms and Conditions

5. Figure 4
Percentage reversal of venoconstriction by acetylcholine before hemodialysis in 8 patients with end-stage renal failure with (•) and without co-infusion of L-arginine (○) and in 4 patients before hemodialysis with (▪) and without co-infusion of D-arginine (□). The response to acetylcholine is enhanced with co-infusion of L-arginine (P = 0.09). However, there is no significant change in the response to acetylcholine when D-arginine is infused pre-hemodialysis (P = 0.98).
Kidney International  , DOI: ( /j x)
Copyright © 1998 International Society of Nephrology Terms and Conditions