Effects of oestradiol and thyroxine upon the plasma calcium content of a shark, Scyliorhinus canicula.
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Animals↗
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Elevation of plasma glucose levels by mammalian ACTH in the spiny dogfish shark (Squalus acanthias).
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Adrenocorticotropic Hormone↗
In vitro tropic action of ACTH upon adrenocortical cyclic nucleotide (cAMP, cGMP) production and corticosterone output in blue (Prionace glauca Linnaeus) and in mako (Isurus oxyrinchus Rafinesque) sharks.
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Adrenal Cortex↗
Immunochemical and biological studies with antiserum to shark growth hormone.
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Animals↗
Plasma glucose levels increase after partial hypophysectomy (ACTH removal) and sham surgery in the spiny dogfish shark (Squalus acanthias).
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Animals↗
Purification and properties of the C4 inactivator from nurse shark serum.
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Animals↗
A comparative study of J chain structure and stoichiometry in human and nurse shark IgM.
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Amino Acids↗
Surface morphology and description of Otobothrium kurisi new species (Cestoda: Trypanorhyncha) from a hammerhead shark, Sphyrna lewini.
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Animals↗
Metabolism of quinaldine (2-methylquinoline). Uptake and excretion by nurse sharks.
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Absorption↗
Properties of the epiphysis cerebri of the small-spotted dogfish shark, Scyliorhinus caniculus L.
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Action Potentials↗
Letter: Accommodation of the lemon shark eye (Negaprion brevirostris).
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Accommodation, Ocular↗
Letter: Giant ganglion cells in the retina of the hammerhead shark (Sphyrna lewini).
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Animals↗
Spectral sensitivity and Purkinje shift in the retina of the lemon shark, Negaprion brevirostris (Poey).
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Action Potentials↗
Structure and organization of immunoglobulin VH genes in Heterodontus, a phylogenetically primitive shark.
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Amino Acid Sequence↗
Isolation from nurse shark serum of immune 7S antibodies with two different molecular weight H-chains.
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Animals↗
Phylogeny of immunoglobulin structure and function--VIII. Intermolecular heterogeneity of shark 19S IgM antibodies to pneumococcal polysaccharide.
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Animals↗
Nucleotide sequence of a nurse shark immunoglobulin heavy chain cDNA clone.
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Amino Acid Sequence↗
The effect of Ca2+, Cd2+ and Ni2+ on detergent-permeabilized vascular smooth muscle from the shark, Squalus acanthias.
We examined the effect of Ca2+, Cd2+, or Ni2+ on vascular smooth muscle intracellular proteins involved in contraction, using rings of detergent-permeabilized aortae from the spiny dogfish, Squalus acanthias. Addition of Ca2+ stimulated contraction of the vascular smooth muscle, and permeabilization by treatment with Triton X-100 increased the sensitivity to Ca2+ nearly 5 log units, demonstrating that this protocol left contractile and regulatory proteins intact. Addition of 1 microM calmodulin did not increase the sensitivity of the rings to Ca2+, suggesting that this preparation is not leaky to this regulatory protein. Neither Cd2+ nor Ni2+ stimulated contraction of permeabilized rings demonstrating that the previously-described contractile action of these heavy metals is not mediated by direct stimulation of intracellular proteins, rather by interaction with sarcolemmal proteins.
Animals↗