Effect of butylated hydroxytoluene (E321) pretreatment versus L-arginine on liver injury after sub-lethal dose of endotoxin administration

ENGİN A. B., BUKAN N., Kurukahuecioglu O., Memis L., Engin A.

ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY, cilt.32, sa.3, ss.457-464, 2011 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.etap.2011.08.014
  • Dergi Adı: ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.457-464
  • Anahtar Kelimeler: Butylated hydroxytoluene, L-Arginine, Lipopolysaccharides, Nitric oxide, Liver injury, Glutathione, NITRIC-OXIDE SYNTHESIS, GLUTATHIONE-PEROXIDASE, COMPARATIVE METABOLISM, PHENOLIC ANTIOXIDANTS, LIPID-PEROXIDATION, OXIDATIVE STRESS, CELL-SURVIVAL, INHIBITION, BHT, HEPATOTOXICITY
  • Gazi Üniversitesi Adresli: Evet

Özet

Aim of this study was to compare the effects of L-arginine (L-arg) and food-antioxidant butylated hydroxytoluene (BHT) against oxidative stress of Escherichia coli endotoxin (LPS) in liver. Ninety Wistar albino rats were assigned in three groups. Rats received one of the following pre-treatment previous to 5 mg/kg LPS intraperitoneally: saline, L-arg (NO donor, 100 mg/kg) or BHT (250 mg/kg/day), for 3 days. At second, fourth and sixth hours, plasma nitrite-plus-nitrate, circulating liver enzymes, glutathione levels, superoxide dismutase, glutathione peroxidase activities were measured. The most remarkable liver injury was evident in BHT pre-treated animals at all time points compared to L-arg pre-treated rats. While BHT enhanced superoxide dismutase activities following LPS, glutathione decreased simultaneously compared to L-arg group. Although the risk associated with the use of BHT alone in subthreshold doses appeared to be low, higher risk of liver toxicity should be considered when over-consuming this food additive in endotoxemic settings. (C) 2011 Elsevier B.V. All rights reserved.