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- Title
Development and validation of a competitive enzyme-linked immunosorbent assay for the measurement of total plasma immunoglobulins in healthy loggerhead sea (Caretta caretta) and green turtles (Chelonia mydas).
- Authors
Kaplan, Amy J.; Stacy, Nicole I.; Jacobson, Elliott; Le-Bert, Carolina R.; Nollens, Hendrik H.; Origgi, Francesco C.; Green, Linda G.; Bootorabi, Shadi; Bolten, Alan; Hernandez, Jorge A.
- Abstract
The quantification of circulating plasma immunoglobulins represents a valuable diagnostic tool in human and veterinary immunology, although its application is very limited in reptile medicine to date. The objectives of our study were the development and standardization of a competitive enzyme-linked immunosorbent assay (cELISA) for the measurement of total plasma immunoglobulins (Igs; both IgM and IgY) in loggerhead sea turtles (LST; Caretta caretta; n = 254) and green turtles (GT; Chelonia mydas; n = 111), the establishment of reference intervals for Ig for both species, and the examination of associations between Ig and total protein (TP), condition index, and water temperature. The cELISA for Ig was successfully developed and optimized. Reference intervals for Ig were 0.38–0.94 g/dL in LST (median: 0.59 g/dL; range: 0.16–2.15 g/dL) and 0.40–0.85 g/dL in GT (median: 0.58 g/dL; range: 0.18–1.80 g/dL). In LST, there were positive linear relationships of Ig with TP, and TP with Ig and condition index, and a negative relationship of Ig with condition index. The positive linear relationships of Ig with TP, and TP with Ig were also identified in GT. These positive associations of Ig and TP were expected, as Ig represents fractions of TP, and TP reportedly increases with straight carapace length and weight. The negative association of Ig with condition index may indicate potential biological variations. The cELISA and reference intervals for total Ig of LST and GT presented herein have the potential to be useful as a diagnostic and research tool for sea turtle immunology.
- Subjects
LOGGERHEAD turtle; IMMUNOGLOBULINS; GREEN turtle; VETERINARY immunology; PROTEIN research
- Publication
Journal of Veterinary Diagnostic Investigation, 2016, Vol 28, Issue 1, p5
- ISSN
1040-6387
- Publication type
Article
- DOI
10.1177/1040638715617804