Figure 6.
Phosphate inhibits pyrophosphate hydrolysis. 32-Pyrophosphate (32PPi) hydrolysis in rat aortic rings cultured in MEM (without phosphate) supplemented (+Pi) or not (−Pi) with 1 mmol/L phosphate. (A) Representative 32PPi hydrolysis in the indicated time. (B) 32PPi hydrolysis in absence or presence of 1 mmoL/L phosphate after 20 min of incubation. Results are presented as mean ± SEM of 12 rings (in three independent experiments), and were compared using the Wilcoxon matched pairs test. ***P < 0.001.