Literaturdatenbank
Literaturdatenbank |
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Holladay, S. D., Wolf, J. C., Smith, S. A., Jones, D. E., & Robertson, J. L. (2001). Aural abscesses in wild-caught box turtles (terapene carolina): possible role of organochlorine-induced hypovitaminosis a. Ecotoxicology and environmental safety, 48(1), 99–106.
Added by: Admin (14 Aug 2008 22:46:45 UTC) Last edited by: Sarina Wunderlich (15 Oct 2008 16:07:16 UTC) |
| Resource type: Journal Article BibTeX citation key: Holladay2001a View all bibliographic details  |
Categories: General Keywords: Ernährung = nutrition, Schildkröten = turtles + tortoises, Toxikologie = toxicology, Untersuchungsmethoden = examination method, Veterinärmedizin = veterinary medicine Creators: Holladay, Jones, Robertson, Smith, Wolf Collection: Ecotoxicology and environmental safety |
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| Abstract |
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Abstract: Wild-caught box turtles (Terapene carolina carolina) with aural abscesses were observed over a period of several years. Histopathologic evaluation of epithelial tissues (conjunctiva, pharynx, trachea, auditory tube) revealed mucosal hyperplasia and squamous metaplasia, and accumulated keratin-like material in the middle ear cavity. These manifestations suggested the possibility of vitamin A deficiency. A nonsignificant trend toward reduced serum and hepatic vitamin A levels was observed in turtles with abscesses (mean serum and hepatic vitamin A levels 71 and 49% of respective levels in turtles without abscesses). Three organochlorine (OC) compounds (-benzene hexachloride, heptachlor epoxide, and oxychlordane) and total (g/g) OC compounds were significantly higher in turtles with abscesses compared with turtles without abscesses. No OC compounds were higher in turtles without abscesses compared with turtles with abscesses. These data suggest a possible effect of environmental chemicals on metabolism or utilization of vitamin A in wild box turtles, resulting in hypovitaminosis A.
Added by: Admin Last edited by: Sarina Wunderlich |