Physiologic and clinicopathologic effects of crude oil on loggerhead sea turtles
| Autor: | Molly Lutcavage, Peter L. Lutz, Gregory D. Bossart, D. M. Hudson |
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| Rok vydání: | 1995 |
| Předmět: |
Blood Glucose
medicine.medical_specialty Polychromasia Health Toxicology and Mutagenesis Physiology Biology Toxicology Blood Urea Nitrogen Hemoglobins Internal medicine White blood cell Respiration medicine Animals Feces Skin Hematology Blood Cells General Medicine Anatomy Carbon Dioxide Hydrogen-Ion Concentration medicine.disease Pollution Turtles Oxygen Red blood cell medicine.anatomical_structure Petroleum Hematocrit Toxicity Histopathology Blood Gas Analysis |
| Zdroj: | Archives of environmental contamination and toxicology. 28(4) |
| ISSN: | 0090-4341 |
| Popis: | The physiologic and clinicopathologic effects of weathered South Louisiana crude oil exposure were studied in the laboratory in juvenile loggerhead sea turtles. Sea turtles ingested oil incidentally, and oil was observed clinging to the nares, eyes, and upper esophagus, and was found in the feces. Oiled turtles had up to a four-fold increase in white blood cell counts, a 50% reduction in red blood cell counts, and red blood cell polychromasia. Most serum blood chemistries (e.g., BUN, protein) were within normal ranges, although glucose returned more slowly to baseline values than in the controls. Gross and histologic changes were present in the skin and mucosal surfaces of oiled turtles, including acute inflammatory cell infiltrates, dysplasia of epidermal epithelium, and a loss of cellular architectural organization of the skin layers. The cellular changes in the epidermis are of particular concern because they may increase susceptibility to infection. Although many of the observed physiological insults resolved within a 21-day recovery period, the long-term biological effects of oil on sea turtles remain completely unknown. |
| Databáze: | OpenAIRE |
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