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Vasoactive peptides in the heart of Champsocephalus gunnari
M A Masini1, M Sturla, B M Uva
1Institute of Comparative Anatomy, University of Genova, Italy.
Comparative Biochemistry and Physiology. Part A, Physiology
|March 20, 1998
Abstract:
The presence of vasoactive peptides known to control cardiovascular functions in mammals and sub-mammalian vertebrates was investigated in the sub-Antarctic icefish Champsocephalus gunnari. Western immuno blotting was used to demonstrate immunoreactive atrial natriuretic peptide (ANP), angiotensin II (Ang II), bradykinin (BK) and endothelin-1 (ET-1) in heart homogenates. Immunohistochemistry was used to investigate the distribution of ANP, Ang II, BK and ET-1 in the cardiocytes of the three chambers of the heart (atrium, ventricle and the very short conus arteriosus).