Table 3 Summary of directional changes in endothelial mediators in acetylcholine-induced relaxation in SHR aorta: effect of treatments.

From: Metformin Improves Endothelial Function and Reduces Blood Pressure in Diabetic Spontaneously Hypertensive Rats Independent from Glycemia Control: Comparison to Vildagliptin

Effect of treatment in

Total relaxation

PGs (sensitive to INDO)

NO (sensitive to LNMMA)

EDHF (INDO + LNMMA resistant)

SHR

  vildagliptin

↑↑

↑↑

≈↑

  metformin

↑↑

≈↓

↑↑

↑↑

STZ-SHR

  vildagliptin

≈↓

≈↓

↑↑

  metformin

↑↑

↑↑

  1. Symbols indicate directional changes induced by treatments compared to untreated SHR and untreated STZ-SHR. Double symbols ↓↓ and ↑↑ indicate a significant decrease and increase, respectively.