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Safety assessment of Apoaequorin, a protein preparation: subchronic toxicity study in rats.

Abstract
Apoaequorin, a calcium-binding protein originally isolated from jellyfish is available commercially as a dietary supplement. The objective of the present study was to investigate potential adverse effects, if any, of Apoaequorin, a recombinant protein preparation, in rats following subchronic administration. For this study, Sprague-Dawley (Hsd:SD) rats (10/sex/group) were administered via oral gavage 0 (control), 92.6, 462.9, and 926.0mg/kg body weight (bw)/day of Apoaequorin preparation, for 90 days. The corresponding amount of Apoaequorin protein was 0, 66.7, 333.3 and 666.7 mg/kg bw/day, respectively. Administration of the Apoaequorin preparation did not result in any mortality. There were no clinical or ophthalmological signs, body weight, body weight gain, food consumption, food efficiency, clinical pathology or histopathological changes attributable to administration of Apoaequorin. Any changes noted were incidental and in agreement with those historically observed in the age and strain of rats used in this study. Based on the results of this study, the No Observed-Adverse-Effect Level (NOAEL) for Apoaequorin was determined as 666.7 mg/kg bw/day, the highest dose tested.
AuthorsDaniel L Moran, Palma Ann Marone, Mark R Bauter, Madhu G Soni
JournalFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association (Food Chem Toxicol) Vol. 57 Pg. 1-10 (Jul 2013) ISSN: 1873-6351 [Electronic] England
PMID23470325 (Publication Type: Journal Article)
CopyrightCopyright © 2013 Elsevier Ltd. All rights reserved.
Chemical References
  • Apoproteins
  • Recombinant Proteins
  • apoaequorin
  • Aequorin
Topics
  • Administration, Oral
  • Aequorin (administration & dosage, toxicity)
  • Animals
  • Apoproteins (administration & dosage, toxicity)
  • Body Weight (drug effects)
  • Dietary Supplements (toxicity)
  • Dose-Response Relationship, Drug
  • Eating (drug effects)
  • Eye (drug effects)
  • Female
  • Male
  • No-Observed-Adverse-Effect Level
  • Organ Size (drug effects)
  • Rats
  • Rats, Sprague-Dawley
  • Recombinant Proteins (administration & dosage, toxicity)
  • Toxicity Tests, Subchronic (methods)

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