cGMP_in pmol/10⁷cells

cGMP_ex/in

Control

5.2 ± 0.8

2.6 ± 0.9

SNP

7.6 ± 1.7

4.7 ± 0.9

IBMX

9.3 ± 0.4

16 ± 1.9

SNP + IBMX

14 ± 1.8

84 ± 5.5