Fig. 3.
Effect of L-NMMA on NO from Hep3B cells.
Hep3B cells were incubated under normoxic (21% O2, ■) or hypoxic (1% O2, ▪) conditions for 4 hours in the presence or absence of L-NMMA. NO was measured by the 2,3-diaminonaphthalene method. Three separate experiments were performed (n = 3). Error bars represent 1 SD. *P < .01.