Angiotensin I-converting enzyme-like activity in tissues from the Atlantic hagfish (Myxine glutinosa) and detection of immunoreactive plasma angiotensins

Cobb, Christopher S. (author)

Frankling, Susan C. (author)

Thorndyke, Michael C., 1946 (author): Gothenburg University,Göteborgs universitet,Institutionen för marin ekologi,Department of Marine Ecology

Jensen, Frank B. (author)

Rankin, J. Cliff (author)

Brown, J. Anne (author)

(creator_code:org_t)

Elsevier BV, 2004
2004
English.
In: Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology. - : Elsevier BV. - 1096-4959. ; 138,:4, s. 357-364

Related links:: https://gup.ub.gu.se...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

Using a highly sensitive fluorimetric assay, significant levels of angiotensin I -converting enzyme-like activity (ACELA) were detected in a range of tissues (branchial heart, gill, kidney with associated vasculature and archinephric duct, liver, whole brain and gut) from the Atlantic hagfish (Myxine glutinosa). The highest ACELA occurred in heart and gill (1.8 and 1.5 nmol His–Leu min−1 mg protein−1, respectively). The mammalian angiotensin I-converting enzyme (ACE) inhibitor, captopril, at 10−5 M was a potent inhibitor of the ACELA found in all hagfish tissues. Radioimmunoassay showed that immunoreactive angiotensins (251.8±11.8 pM) were detectable in hagfish plasma. The validity of the assay for measurement of hagfish angiotensins was indicated by the parallelism of the angiotensin II standard curve against serially diluted hagfish plasma. Measurement of immunoreactive plasma angiotensins and detection of significant levels of ACELA in a wide range of tissues gives indirect evidence for the presence of a renin–angiotensin system in hagfishes, the earliest evolved group of craniates

By the author/editor: Cobb, Christophe ...; Frankling, Susan ...; Thorndyke, Micha ...; Jensen, Frank B.; Rankin, J. Cliff; Brown, J. Anne

About the subject

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