Zobrazeno 1 - 10
of 37
pro vyhledávání: '"J H Youson"'
Publikováno v:
Endocrinology. 136:349-356
A novel homodimeric glycoprotein was isolated and characterized from the pituitaries of adult sea lampreys, Petromyzon marinus, modern representatives of the earliest vertebrates. The monomer consists of 121 amino-acid residues in a sequence that has
Publikováno v:
Scopus-Elsevier
The bowfin, Amia calva (order Amiiformes) occupies an important position in phylogeny as a surviving representative of a group of primitive ray-finned fishes from which the present-day teleosts may have evolved. Glucagon and glucagon-like peptide (GL
Autor:
W. M. Elliott, J. H. Youson
Publikováno v:
The Anatomical Record. 237:259-270
The results of this study were found to support the hypothesis put forth by Boenig (Z. Mikrosk-Anat. Forsch., 17:125–184, 1929) that the caudal pancreas of adult lamprey develops from the epithelium of the extrahepatic common bile duct in that the
Autor:
J. H. Youson
Publikováno v:
Canadian Journal of Zoology. 71:2018-2032
Light and electron microscopy, inductively coupled plasma atomic emission spectroscopy, and a biochemical assay were used to compare tissue distribution and concentration of iron in larval lampreys (Petromyzon marinus) under conditions of long-term s
Autor:
W. M. Elliott, J. H. Youson
Publikováno v:
The Anatomical Record. 237:271-290
The development of the adult endocrine pancreas was followed throughout metamorphosis in the sea lamprey using electron microscopy and immunocytochemistry. It was discovered that the caudal pancreas develops from the larval extrahepatic common bile d
Autor:
J. H. Youson, F. Eng
Publikováno v:
The Anatomical Record. 234:201-214
Routine light microscopy and transmission and scanning electron microscopy were used to describe and compare the biliary tree of larval Lampetra lamottenii before and during infestation of the bile ducts with the nematode, Truttaedacnitis stelmioides
Publikováno v:
European Journal of Biochemistry. 199:293-298
A peptide belonging to the pancreatic-polypeptide-fold family of regulatory peptides has been isolated from the intestine of an Agnathan, the sea lamprey (Petromyzon marinus). The primary structure of the peptide (termed peptide methionine – tyrosi
Autor:
J. H. Youson, F. Eng
Publikováno v:
Canadian Journal of Zoology. 69:1126-1129
Green sera collected from larval lampreys of Lampetra lamottenii were assayed and were shown to contain biliverdin at a concentration ranging from 141.5 to 305.0 μmol/L (mean 231.0 ± 27.4). These levels of serum biliverdin are compared with those o
Autor:
J. H. Youson, S. J. Hall
Publikováno v:
Canadian Journal of Zoology. 68:1839-1856
Light microscopic autoradiography and quantitative tissue analyses were used to examine the distribution of radioiron in larvae (ammocoetes) of the lamprey Petromyzon marinus L. over time following the injection of 55ferrous citrate (55Fe). It was fo
Publikováno v:
Developmental Neuroscience. 12:225-234
The distribution of beta-S100 mRNA within the brain and skull of the 14-day rat embryo was determined using in situ hybridization. In nonnervous tissue, signal corresponding to beta-S100 mRNA was prominent within cartilaginous regions. Signal appeare