Vasoactive peptides in the heart of Champsocephalus gunnari

• Published in: Comparative Biochemistry and Physiology Part A: Physiology
• Main Authors: MASINI, MARIA ANGELA, M. Sturla, B. M. Uva
• Other Authors: Masini, MARIA ANGELA, M., Sturla, B. M., Uva
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1997
• Subjects: Antarctic; Antarc*; Icefish
• Online Access: http://hdl.handle.net/11579/90693; https://doi.org/10.1016/s0300-9629(97)00018-2

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).