Abstract
Acer pseudoplatanus is a worldwide-distributed tree which contains toxins, among them hypoglycin A (HGA). This toxin is known to be responsible for poisoning in various species, including humans, equids, Père David’s deer and two-humped camels. We hypothesized that any herbivore pasturing with A. pseudoplatanus in their vicinity may be at risk for HGA poisoning. To test this hypothesis, we surveyed the HGA exposure from A. pseudoplatanus in species not yet described as being at risk. Animals in zoological parks were the major focus, as they are at high probability to be exposed to A. pseudoplatanus in enclosures. We also searched for a toxic metabolite of HGA (i.e., methylenecyclopropylacetyl-carnitine; MCPA-carnitine) in blood and an alteration of the acylcarnitines profile in HGA-positive animals to document the potential risk of declaring clinical signs. We describe for the first instance cases of HGA poisoning in Bovidae. Two gnus (Connochaetes taurinus taurinus) exposed to A. pseudoplatanus in their enclosure presented severe clinical signs, serum HGA and MCPA-carnitine and a marked modification of the acylcarnitines profile. In this study, even though all herbivores were exposed to A. pseudoplatanus, proximal fermenters species seemed less susceptible to HGA poisoning. Therefore, a ruminal transformation of HGA is hypothesized. Additionally, we suggest a gradual alteration of the fatty acid metabolism in case of HGA poisoning and thus the existence of subclinical cases.
Funder
La Wallonie agriculture SPW
Subject
Health, Toxicology and Mutagenesis,Toxicology
Reference58 articles.
1. Vergleichende Chorologie der Zentraleuropaïschen Flora. Bd 2;Jager,1992
2. NOBANIS–Invasive Alien Species Fact Sheet–Acer pseudoplatanus.–From: Online Database of the European Network on Invasive Alien Species–NOBANIS
https://www.nobanis.org/
3. A review of growth and stand dynamics of Acer pseudoplatanus L. in Europe: implications for silviculture
4. The CABI Encyclopedia of Forest Trees;Dixon,2013
5. Hypoglycin A Concentrations in Seeds of Acer Pseudoplatanus
Trees Growing on Atypical Myopathy-Affected and Control Pastures
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