Indirect immunostaining of PFA fixed rat brain section with Guinea pig anti-CGRP (cat. no. 414 004, dilution 1 : 500; red). Nuclei have been visualized by DAPI staining (blue).​

Indirect immunostaining of PFA fixed macaque spinal cord section with Guinea pig anti-CGRP (cat. no. 414 004, dilution 1 : 500; red) and goat anti-cholera toxin subunit B (labels primary afferents here; List Biological Laboratories, 1 : 4000; green). Yellow colour denotes the subset of primary afferent terminal boutons which are nociceptive (i.e. C or A-delta fibers) and contain CGRP. A: 4X, B: 40X.

Courtesy: Karen Fisher & Corinna Darian-Smith, Dept. Comparative Medicine, Stanford University, USA
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Indirect immunostaining of PFA fixed paraffin embedded human thyroid section with Guinea pig anti-CGRP (cat. no. 414 004, dilution 1 : 1000; DAB). Nuclei have been counterstained with haematoxylin (blue).​