Key result
Rat left atrium shows ~3-fold denser CGRP and NPY innervation than the right atrium.
Why the study?
The distribution of calcitonin gene-related peptide, atrial natriuretic peptide, and neuropeptide Y within different regions of the rat heart was not fully characterized and compared using multiple methods.
No takes yet. Share an insight, caveat, or question.
Regional distributions differ by atrium and method; leaves open functional roles in human cardiac innervation.
Onuoha et al. (1998) studied this question. CGRP and NPY nerve fibres were two to three times more abundant in the left atrium, whereas irANP staining was more intense in the right atrium of the rat heart.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: