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Laing, C. J. & Fraser, D. R. (1999) The vitamin D system in iguanian lizards. Comparative Biochemistry and Physiology B, 123 373–379. 
Added by: Sarina (16 Sep 2009 15:46:11 UTC)   Last edited by: Sarina (06 Jan 2010 12:25:37 UTC)
Resource type: Journal Article
DOI: 10.1016/S0305-0491(99)00081-4
BibTeX citation key: Laing1999a
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Categories: Englisch = English
Keywords: Echsen = Lizards, Reptilien = Reptiles, Vitamin D = Vitamin D
Creators: Fraser, Laing
Collection: Comparative Biochemistry and Physiology B
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The apparent plasma concentration of vitamin D binding protein (DBP) in an iguanian lizard, Pogona barbata, and the affinity of this protein for 25-hydroxyvitamin D3 (25(OH)D3), 25-hydroxyvitamin D2 (25(OH)D2), and 1,25-dihydroxyvitamin D3 (1,25(OH)D3) was found to resemble more closely that of the domestic hen than that of the human. The characteristics of Pogona DBP, the pattern of vitamin D metabolites derived from injected radioactive vitamin D3 and the plasma concentrations of endogenous 25-hydroxyvitamin D (25(OH)D) in a range of iguanian lizards have been examined. The findings suggest that 25-hydroxyvitamin D (25(OH)D) is the major metabolite of vitamin D, and that it may represent the storage form of vitamin D in these species in the same way as in mammals. High concentrations of vitamin D within iguanian embryos and egg yolks suggest a role for this compound in embryogenesis in these species, and perhaps indicates that there is a mechanism for vitamin D delivery to eggs comparable to that found in the domestic chicken.

Author Keywords: Reptile; Squamate; Lizard; Pogona; Egg; Cholecalciferol; Vitamin D; Vitamin D binding protein
Added by: Sarina  Last edited by: Sarina
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