Abstract Title:

Cerebellar level of neurotransmitters in rats exposed to paracetamol during development.

Abstract Source:

Pharmacol Rep. 2016 Dec ;68(6):1159-1164. Epub 2016 Sep 7. PMID: 27611980

Abstract Author(s):

Kamilla Blecharz-Klin, Ilona Joniec-Maciejak, Katarzyna Jawna-Zboińska, Justyna Pyrzanowska, Agnieszka Piechal, Adriana Wawer, Ewa Widy-Tyszkiewicz

Article Affiliation:

Kamilla Blecharz-Klin


BACKGROUND: The present study was designed to clarify the effect of prenatal and postnatal paracetamol administration on the neurotransmitter level and balance of amino acids in the cerebellum.

METHODS: Biochemical analysis to determine the concentration of neurotransmitters in this brain structure was performed on two-month-old Wistar male rats previously exposed to paracetamol in doses of 5 (P5, n=10) or 15mg/kg (P15, n=10) throughout the entire prenatal period, lactation and until the completion of the second month of life, when the experiment was terminated. Control animals were given tapped water (Con, n=10). The cerebellar concentration of monoamines, their metabolites and amino acids were assayed using High Performance Liquid Chromatography (HPLC).

RESULTS: The present experiment demonstrates that prenatal and postnatal paracetamol exposure results in modulation of cerebellar neurotransmission with changes concerning mainly 5-HIAA and MHPG levels.

CONCLUSION: The effect of paracetamol on monoaminergic neurotransmission in the cerebellum is reflected by changes in the level of catabolic end-products of serotonin (5-HIAA) and noradrenaline (MHPG) degradation. Further work is required to define the mechanism of action and impact of prenatal and postnatal exposure to paracetamol in the cerebellum and other structures of the central nervous system (CNS).

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