Neuroinflammation and hypersensitivity evidenced by the acute and 28-day repeated dose toxicity tests of ostrich oil in mice.

Data de publicação: Data Ahead of Print:

Autores da FMUP

  • Rui Manuel Lopes Nunes

    Autor

Participantes de fora da FMUP

  • Santin JR
  • Kopp MAT
  • Correa TP
  • Melato J
  • Benvenutti L
  • Goldoni FC
  • Patel YBK
  • de Souza JA
  • Soczek SHDS
  • Fernandes ES
  • Pastor MVD
  • Klein Junior LC
  • Apel MA
  • Henriques AT
  • Quintão NLM

Unidades de investigação

Abstract

The ostrich oil (OO) has been topically used for decades to treat skin diseases. Its oral use has been encouraged through e-commerce advertising several health benefits to OO without scientific evidence on its safety or effectiveness. This study presents the chromatographic profile of a commercially available OO and its acute and 28-day repeated dose in vivo toxicological profiles. OO anti-inflammatory and antinociceptive effects were also investigated. Omega-9 (?-9; oleic acid; 34.6%) and -6 (linoleic acid; 14.9%) were detected as OO main constituents. A high single dose of the OO (2 g/kg of ?-9) demonstrated no or low acute toxicity. However, when orally treated with OO (30-300 mg/kg of ?-9) for 28 consecutive days, mice exhibited altered locomotor and exploratory activities, hepatic damage, and increased hindpaw sensitivity accompanied by increased levels of cytokine and brain-derived neurotrophic factor in their spinal cords and brains. Lack of anti-inflammatory or antinociceptive activities was also evidenced in 15-day-OO treated mice. These results indicate that chronic consumption of OO induces hepatic injury, in addition to neuroinflammation and subsequent hypersensitivity and behavioural changes. Thus, there is no evidence to support OO use to treating illness in humans.

Copyright © 2023 Elsevier Ltd. All rights reserved.

Dados da publicação

ISSN/ISSNe:
1873-6351, 0278-6915

Food and Chemical Toxicology  Elsevier Ltd.

Tipo:
Article
Páginas:
113852-113852

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Keywords

  • Monosaturated fat; Neuroinflammation; Nociception; Nutraceuticals; Polyunsaturated fat; Toxicology

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