title: The food supplement coenzyme Q10 and suppression of antitubercular drug-induced hepatic injury in rats: the role of antioxidant defence system, anti-inflammatory cytokine IL-10.
abstract: BACKGROUND
  Isoniazid (INH) and rifampicin (RIF), the most common anti-tubercular therapy, causes hepatotoxicity through a multi-step mechanism in certain individuals. The present study was an attempt to evaluate the hepatoprotective effect of coenzyme Q10 against INH + RIF-induced hepatotoxicity in Wistar albino rats.
  
  
  METHODS
  Hepatotoxicity was induced by the oral administration of INH + RIF (50 mg/kg b.w. each/day) in normal saline water for 28 days. The hepatoprotective effect of coenzyme Q10 (10 mg/kg b.w./day) was compared with that of the standard drug silymarin (25 mg/kg b.w./day). Animals were sacrificed at the end of the study period, and blood and liver were collected for biochemical, immunological and histological analyses.
  
  
  RESULTS
  Evaluation of biochemical parameters showed that coenzyme Q10 treatment caused significant (P < 0.05) reduction in the elevated levels of serum liver function markers and restored normal levels of total protein, albumin and lipids in INH + RIF-treated rats. Also, it was observed that coenzyme Q10 was able to restore normal levels of enzymic antioxidants, reduced glutathione and lipid peroxidation in the INH + RIF-treated rats. Coenzyme Q10 was found to effectively reduce the extent of liver damage caused due to INH + RIF. In addition, the levels of IL-10 and IL-6 were significantly elevated in the INH + RIF-induced rats treated with CoQ10.
  
  
  CONCLUSIONS
  Our study indicates the protective role of coenzyme Q10 in attenuating the hepatotoxic effects of INH + RIF in a rat model and that it could be used as a food supplement during anti-tubercular therapy.
authors.affiliation: School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India.
authors.forename: Udhaya Lavinya
authors.initials: UL
authors.lastname: Baskaran
authors.affiliation: School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India. eps674@gmail.com.
authors.forename: Evan Prince
authors.initials: EP
authors.lastname: Sabina
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000494:pharmacology; D000975:Antioxidants / Q000378:metabolism*; D000995:Antitubercular Agents / Q000633:toxicity*; D056486:Chemical and Drug Induced Liver Injury / Q000188:drug therapy* / Q000209:etiology / Q000378:metabolism*; D019587:Dietary Supplements; D005260:Female; D016753:Interleukin-10 / Q000378:metabolism*; D007538:Isoniazid / Q000633:toxicity; D008099:Liver / Q000187:drug effects; D051381:Rats; D017208:Rats, Wistar; D012293:Rifampin / Q000633:toxicity; D012838:Silymarin / Q000494:pharmacology; D014451:Ubiquinone / Q000031:analogs & derivatives* / Q000494:pharmacology; D014815:Vitamins / Q000494:pharmacology*
chemical_list: D000893:Anti-Inflammatory Agents; D000975:Antioxidants; D000995:Antitubercular Agents; D012838:Silymarin; D014815:Vitamins; D016753:Interleukin-10; D014451:Ubiquinone; C024989:coenzyme Q10; D007538:Isoniazid; D012293:Rifampin
keywords: Antioxidant; Antitubercular drugs; Coenzyme Q10; Cytokines; Hepatotoxicity