Localization of ANP-synthesizing cells in rat stomach

Figure 3 A: localization of immunogold labeled in the endocrine granule of the enterochromaffin cell (TEM × 20 000, bar = 200 nm); B: Negative control,complete absence of immunogold labeled in the endocrine granule of enterochromaffin cells when normal rabbit serum was substituted for anti-ANP antiserum (TEM × 20 000, Bar = 200 nm); C: Normal enterochromaffin cells in gastric mucosa (TEM × 15 000, Bar = 500 nm).