Tricarboxylic Acid Metabolite Imbalance in Rats with Acute Thioacetamide-Induced Hepatic Encephalopathy Indicates Incomplete Recovery

Int J Mol Sci. 2023 Jan 10;24(2):1384. doi: 10.3390/ijms24021384.

Abstract

Exposure to the toxin thioacetamide (TAA) causes acute hepatic encephalopathy (HE), changes in the functioning of systemic organs, and an imbalance in a number of energy metabolites. The deferred effects after acute HE development are poorly understood. The study considers the balance of the tricarboxylic acid (TCA) cycle metabolites in the blood plasma, liver, kidneys, and brain tissues of rats in the post-rehabilitation period. The samples of the control (n = 3) and TAA-induced groups of rats (n = 13) were collected six days after the administration of a single intraperitoneal TAA injection at doses of 200, 400, and 600 mg/kg. Despite the complete physiological recovery of rats by this date, a residual imbalance of metabolites in all the vital organs was noted. The results obtained showed a trend of stabilizing processes in the main organs of the animals and permit the use of these data both for prognostic purposes and the choice of potential therapeutic agents.

Keywords: HPLC; hepatic encephalopathy; metabolites; thioacetamide; tricarboxylic acid cycle metabolites; α-ketoglutaramate.

MeSH terms

  • Animals
  • Brain Diseases* / metabolism
  • Hepatic Encephalopathy* / chemically induced
  • Liver / metabolism
  • Liver Failure, Acute* / chemically induced
  • Rats
  • Thioacetamide / toxicity
  • Tricarboxylic Acids / metabolism

Substances

  • Thioacetamide
  • Tricarboxylic Acids

Grants and funding

This research was funded in part by the Russian Ministry of Science and Education, grant number 14.604.21.0116 awarded to B.F.K.—the unique identification number of the applied scientific research is RFMEFI60414X0116, and by the Base Funding from the Ministry of Science and Higher Education of the Russian Federation (E.P.I. and Y.I.D.).