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A noninvasive monitoring device for anesthetics in fish
Power, Deborah; Fuentes, Juan; Harrison, Adrian P.A noninvasive device capable of recording both gill and lateral fin movements was assembled and used to analyze initial and post-treatment activity frequency (Hz) in fish exposed to anesthetics. Exposure of platy fish (Xiphosphorus maculatus) to saponins from quillaja bark (0.185 mM and 0.555 mM) initially caused hyperactivity, but within five minutes all activity ceased and the fish failed to recover. In contr...
Gene structure, transcripts and calciotropic effects of the PTH family of pepti...
Pinheiro, Pedro L. C.; Cardoso, J. C. R.; Gomes, Ana S.; Fuentes, Juan; Power, Deborah; Canario, Adelino V. M.Background: Parathyroid hormone (PTH) and PTH-related peptide (PTHrP) belong to a family of endocrine factors that share a highly conserved N-terminal region (amino acids 1-34) and play key roles in calcium homeostasis, bone formation and skeletal development. Recently, PTH-like peptide (PTH-L) was identified in teleost fish raising questions about the evolution of these proteins. Although PTH and PTHrP have be...
Parathyroid hormone-related protein-stanniocalcin antagonism in regulation of b...
Fuentes, Juan; Power, Deborah; Canario, Adelino V.M.Parathyroid hormone-related protein-stanniocalcin antagonism in regulation of bicarbonate secretion and calcium precipitation in a marine fish intestine. Am J Physiol Regul Integr Comp Physiol 299: R150–R158, 2010. First published April 21, 2010; doi:10.1152/ajpregu.00378.2009.—Bicarbonate secretion in the intestine (duodenum) of marine fish has been suggested to play a major role in regulation of calcium avail...
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