The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

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pdf 01. Hyperbiliverdinemia in the shingleback lizard (Tiliqua rugosa)

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Open Access

pp.161-165

Authors: Marcello Pennacchio, Michaela Bogyi, Likhim Teh And Emilio L. Ghisalberti

Abstract: Green pigmentation in the serum of shingleback lizards (Tiliqua rugosa) was the result of an excess of the bile pigment biliverdin (hyperbiliverdinemia). This was confirmed by comparing the absorbance spectrum of the affected serum with that of commercial biliverdin, using TLC and acidification with both nitric and sulphuric acid. The average content of biliverdin in animals with hyperbiliverdinemia was 2.52±0. 15 mg/I 00 ml. Significant changes in the packed cell volume, haemoglobin content, blood glucose levels, body mass and levels of erythropoietin were also observed in animals with this form of green jaundice. Interestingly, significant erythrocyte degeneration, especially in the stroma area of the red blood eells, appears to result in a significant release of haemoglobin into the blood serum, which may account for the excess levels of biliverdin. Changes in the haematology of shingleback lizards are discussed along with the probable cause for hyperbiliverdinemia.

Keywords: bile pigments, biliverdin, jaundice, shingleback lizards

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