Immunohistochemical localisation of natriuretic peptides in the brains and hearts of the spiny dogfish Squalus acanthias and the Atlantic hagfish Myxine glutinosa.
The avidin-biotin peroxidase technique was used to determine the distribution of natriuretic peptides in the hearts and brains of the dogfish Squalus acanthias and the Atlantic hagfish Myxine glutinosa. Three antisera were used: one raised against porcine brain natriuretic peptide which cross-reacts...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
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1992
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| Online Access: | http://hdl.handle.net/10536/DRO/DU:30094421 https://figshare.com/articles/journal_contribution/Immunohistochemical_localisation_of_natriuretic_peptides_in_the_brains_and_hearts_of_the_spiny_dogfish_Squalus_acanthias_and_the_Atlantic_hagfish_Myxine_glutinosa_/20867929 |
| Summary: | The avidin-biotin peroxidase technique was used to determine the distribution of natriuretic peptides in the hearts and brains of the dogfish Squalus acanthias and the Atlantic hagfish Myxine glutinosa. Three antisera were used: one raised against porcine brain natriuretic peptide which cross-reacts with atrial natriuretic and C-type natriuretic peptides (termed natriuretic peptide-like immunoreactivity); the second raised against porcine brain natriuretic peptide which cross-reacts with C-type natriuretic peptide, but not with atrial natriuretic peptide (termed porcine brain natriuretic peptide-like immunoreactivity); and the third raised against rat atrial natriuretic peptide (termed rat atrial natriuretic peptide-like immunoreactivity). Only natriuretic peptide-like immunoreactivity was observed in the heart of S. acanthias which was most likely due to the antiserum cross-reacting with C-type natriuretic peptide. No immunoreactivity was found in the M. glutinosa heart. In the brain of S. acanthias, natriuretic peptide-like immunoreactive fibres were located in many areas of the telencephalon, diencephalon, mesencephalon, rhombencephalon, and spinal cord. Extensive immunoreactivity was observed in the hypothalamo-hypophyseal tract and the neurointermediate lobe of the hypophysis. Natriuretic peptide-like immunoreactive perikarya were found in ventromedial regions of the telencephalon and in the nucleus preopticus. Most perikarya had short, thick processes which extended toward the ventricle. Another group of perikarya was observed in the rhombencephalon. Porcine brain natriuretic peptide-like immunoreactive fibres were observed in the telencephalon, diencephalon, mesencephalon, and rhombencephalon, but perikarya were only present in the preoptic area. In the M. glutinosa brain, natriuretic peptide-like immunoreactive fibres were present in all regions. Immunoreactive perikarya were observed in the pallium, primordium hippocampi, pars ventralis thalami, pars dorsalis thalami, nucleus diffusus hypothalami, ... |
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