Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 87, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.etap.2021.103735
Keywords
3-MCPD; Glycidol; miR-21; PTEN-Akt pathway
Funding
- Ataturk University Scientific Research Project Department [2018, 6825]
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3-MCPD and glycidol were found to induce apoptosis in rat brain tissue, as evidenced by decreased miR-21 gene expression, increased PTEN levels, decreased Akt gene expression, and increased Caspase 3 and AIF immunopositivity in the cerebellum granular layers.
3-chloropropane-1,2-diol (3-MCPD) and its toxic metabolite glycidol were classified by the International Agency for Research on Cancer (IARC) as belonging to group 2B and 2A for humans. This study aimed to determine the sub-acute toxicity of these agents. Rats were exposed to 3-MCPD at 0.87 and 10 mg/kg/bw and glycidol (2,4 and 37,5 mg/kg/bw) for 90 days. miR-21 gene expression levels significantly decreased in all group's cerebellar tissues compared with control. Exposure to 10 mg/kg/bw 3-MCPD showed significant increases in PTEN in brain as compared to control group. The Akt gen expressions were significantly decreased in 3-MCPD and glycidol groups when compared to control group brains. Additionally, Caspase 3 and AIF immunopositivity significantly increased in 3-MCPD high dose and glycidol high dose groups in cerebellum granular layers compared to control. The results of the present study conclude that 3-MCPD and glycidol can induce apoptosis in rat brain tissue.
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