{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T22:16:53Z","timestamp":1789769813203,"version":"4.0.1"},"reference-count":40,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2011,5,1]],"date-time":"2011-05-01T00:00:00Z","timestamp":1304208000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"},{"start":{"date-parts":[[2011,2,25]],"date-time":"2011-02-25T00:00:00Z","timestamp":1298592000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["setac.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Nickel, a widely distributed heavy metal in the biosphere, produces systemic, carcinogenic, and teratogenic effects. The objectives of the present study are to report the acute, short-term chronic, and chronic toxicity of Ni in Rhinella arenarum embryos as well as the stage-dependent susceptibility to this heavy metal, including oxygen consumption, teratogenesis, and adverse effects on cell differentiation processes. The stages evaluated were blastula (S.7), gastrula (S.11), tail bud (S.17), fin circulation (S.22), and complete operculum (S.25), in this last case by means of toxicity profile curves. Nickel increases its adverse effects gradually, with a maximum value after 96\u2009h. The 50% lethal concentrations (LC50s) for 96, 168, and 240\u2009h at S.25 were 1.14, 0.60, and 0.48\u2009mg Ni2+\/L, respectively; S.11 and S.22 were the least and most susceptible to Ni with, LC50s 96\u2009h of 6.12 and 0.19\u2009mg Ni2+\/L, respectively. A reduction of approximately 25% in oxygen consumption anticipates lethal effects from S.17 onward. The main teratogenic effects were retarded growth and development, extremely severe axis incurvations, persistent yolk plug, asymmetry, microcephaly and mouth and gill agenesia, and limited neuromuscular activity. Ciliated cells were not functional. The possibility of associating the remarkable stage-dependent susceptibility to Ni with environmental changes during the evolutionary process is also considered. Environ. Toxicol. Chem. 2011; 30:1146\u20131152. \u00a9 2011 SETAC<\/jats:p>","DOI":"10.1002\/etc.484","type":"journal-article","created":{"date-parts":[[2011,2,17]],"date-time":"2011-02-17T08:36:34Z","timestamp":1297931794000},"page":"1146-1152","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Nickel toxicity in embryos and larvae of the South American toad: Effects on cell differentiation, morphogenesis, and oxygen consumption"],"prefix":"10.1093","volume":"30","author":[{"given":"Abelardo Andr\u00e9s","family":"Sztrum","sequence":"first","affiliation":[{"name":"Instituto de Ciencias Ambientales y Salud, Fundaci\u00f3n Pro Salud y Medio Ambiente, Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Luis","family":"D'Eramo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge","family":"Herkovits","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2011,5,1]]},"reference":[{"key":"2026020510231342600_bib1","doi-asserted-by":"crossref","first-page":"750","DOI":"10.1038\/nature07858","article-title":"Oceanic nickel depletion and a methanogen famine before the great oxidation event","volume":"458","author":"Konhauser","year":"2009","journal-title":"Nature"},{"key":"2026020510231342600_bib2","volume-title":"Environmental Health Criteria for Nickel","author":"World Health Organization","year":"1992"},{"key":"2026020510231342600_bib3","article-title":"Nickel Hazards to Fish, Wildlife and invertebrates: A Synoptic Review","author":"Eisler","year":"1998"},{"key":"2026020510231342600_bib4","volume-title":"Toxicological Profile for 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