when these inhibitors were added to the isolated heart perfusate , 3k anp was still released by the atria , indicating that anp processing occurs in the heart in a region not accessible to the inhibitors ( i.e . intracellularly ) or that the anp-processing enzyme ( s ) is not inhibited by these cmk analogs and is , therefore , not related to serum-derived proteases .
C0018792
atria
C0018787
heart