{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T16:07:33Z","timestamp":1778947653832,"version":"3.51.4"},"reference-count":71,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,11,18]],"date-time":"2022-11-18T00:00:00Z","timestamp":1668729600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Cefas Seedcorn","award":["SCN975"],"award-info":[{"award-number":["SCN975"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Toxins"],"abstract":"<jats:p>Cyanobacterial blooms are often associated with the presence of harmful natural compounds which can cause adverse health effects in both humans and animals. One family of these compounds, known as anatoxins, have been linked to the rapid deaths of cattle and dogs through neurotoxicological action. Here, we report the findings resulting from the death of a dog at a freshwater reservoir in SW England. Poisoning was rapid following exposure to material at the side of the lake. Clinical signs included neurological distress, diaphragmatic paralysis and asphyxia prior to death after 45 min of exposure. Analysis by HILIC-MS\/MS of urine and stomach content samples from the dog revealed the detection of anatoxin-a and dihydroanatoxin-a in both samples with higher concentrations of the latter quantified in both matrices. Detection and quantitative accuracy was further confirmed with use of accurate mass LC-HRMS. Additional anatoxin analogues were also detected by LC-HRMS, including 4-keto anatoxin-a, 4-keto-homo anatoxin-a, expoxy anatoxin-a and epoxy homo anatoxin-a. The conclusion of neurotoxicosis was confirmed with the use of two independent analytical methods showing positive detection and significantly high quantified concentrations of these neurotoxins in clinical samples. Together with the clinical signs observed, we have confirmed that anatoxins were responsible for the rapid death of the dog in this case.<\/jats:p>","DOI":"10.3390\/toxins14110804","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T04:33:32Z","timestamp":1669005212000},"page":"804","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Confirmation Using Triple Quadrupole and High-Resolution Mass Spectrometry of a Fatal Canine Neurotoxicosis following Exposure to Anatoxins at an Inland Reservoir"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1390-0924","authenticated-orcid":false,"given":"Andrew D.","family":"Turner","sequence":"first","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Florence R. I.","family":"Turner","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"},{"name":"Budmouth Academy, Chickerell Road, Weymouth DT4 9SY, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martha","family":"White","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"},{"name":"Budmouth Academy, Chickerell Road, Weymouth DT4 9SY, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Hartnell","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claire G.","family":"Crompton","sequence":"additional","affiliation":[{"name":"Veterinary Pathology Group, Unit 8, Temple Point, Bullerthorpe Lane, Leeds LS15 9JL, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7310-7042","authenticated-orcid":false,"given":"Nicola","family":"Bates","sequence":"additional","affiliation":[{"name":"Veterinary Poisons Information Service, Godfree Court, 29-35 Long Lane, London SE1 4PL, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Egginton","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liz","family":"Branscombe","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adam M.","family":"Lewis","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin H.","family":"Maskrey","sequence":"additional","affiliation":[{"name":"Centre for Environment, Fisheries and Aquaculture Science (Cefas), Barrack Road, Weymouth DT4 8UB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1051\/vetres:2003019","article-title":"Health Hazards for Terrestrial Vertebrates from Toxic Cyanobacteria in Surface Water Ecosystems","volume":"34","author":"Briand","year":"2003","journal-title":"Vet. 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