Biomarkers of Gastrointestinal Disease in Cheetahs (Acinonyx Jubatus)

Abstract

Gastrointestinal disease is a common clinical problem in captive cheetahs (Acinonyx jubatus). It is reported that gastritis affects the vast majority of the captive population of cheetahs. Pancreatitis and acute and chronic enteritis have also been reported. These issues pose significant long-term health and welfare implications for cheetahs. Cobalamin, folate, methylmalonic acid (MMA), gastrin, feline pancreatic-specific lipase immunoreactivity (fPLI), and feline trypsin-like immunoreactivity (fTLI) immunoassays are important biomarkers of gastrointestinal disease in domestic cats. The goal of this study was to determine if these immunoassays validated in domestic cats could be used clinically in cheetahs, by establishing reference intervals (RI) for these biomarkers in cheetahs. A cohort of 40 clinically healthy cheetahs was selected from three zoological institutions on the basis of being free of clinical gastrointestinal disease and extra-gastrointestinal disease that could affect biomarkers, as well as having banked frozen serum. Cheetah biomarker RI, with domestic cat RI for comparison in parentheses, are as follows: Cobalamin 470-618 pg/ml (290-1500 pg/ml), folate 2.2-15.7 ng/ml (9.7-21.6 ng/ml), MMA 365-450 nM/L (139-897 nM/L), fPLI 0.5-1.2 μg/L (0-4 μg/L), and gastrin 30-50 pg/ml (<10-39.5 pg/ml). This study shows that RI for gastrointestinal biomarkers can be notably different, even between species that are as closely related as the domestic cat and the cheetah. Additionally, it was found that the fTLI assay does not cross-immunoreact with cheetahs. In conclusion, this study emphasizes the importance of developing species-specific RI for biomarker assays and using caution when extrapolating RI from other species.

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Published Version (Please cite this version)

10.1638/2021-0012

Publication Info

Fox, Lana, Holly Haefele, Johnny Uelmen, Sharman Hoppes, Julie Swenson, M Katherine Tolbert, Jan S Suchodolski, Jörg M Steiner, et al. (2021). Biomarkers of Gastrointestinal Disease in Cheetahs (Acinonyx Jubatus). Journal of Zoo and Wildlife Medicine, 52(3). pp. 886–892. 10.1638/2021-0012 Retrieved from https://hdl.handle.net/10161/27050.

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Uelmen

Johnny Uelmen

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I am fascinated with infectious diseases. The resiliency of pathogens never ceases to amaze me. To begin to understand how pathogens survive (and thrive) in a given disease system, techniques and methods across multiple scientific disciplines must come together. I am an Epidemiologist at the core, but my background includes Ecology, Entomology, Geography (and GIS), Environmental Studies, and Biology. I work best collaborating with members not just in Public Health, Epidemiology, GIS, and Entomology, but also in Chemistry, Physics, both Veterinary and Human Medicine, and Informatics, to name a few! Please do not hesitate to send an email to say hi!


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