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Updated: May 10, 2026
08:39
Experimental Protocol for Detecting Mitochondrial Function in Hepatocytes Exposed to Organochlorine Pesticides
Published on: September 16, 2020
A new approach on methamphetamine-induced hepatotoxicity: involvement of mitochondrial dysfunction
Mohammad Reza Eskandari1, Mokhtar Rahmati, Ali Reza Khajeamiri
1Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences , Zanjan , Iran .
Summary
Methamphetamine (METH) causes liver damage through oxidative stress, depleting glutathione and damaging mitochondria. This leads to the release of cytochrome c, resulting in cell death.
Area of Science:
- Hepatology
- Toxicology
- Cellular Biology
Background:
- Methamphetamine (METH) is a widely abused illicit stimulant.
- The liver is a known target of METH toxicity.
- Mechanisms of METH-induced hepatotoxicity remain unclear.
Purpose of the Study:
- Investigate cellular pathways of METH liver toxicity.
- Elucidate molecular mechanisms of METH-induced damage.
Main Methods:
- Utilized freshly isolated rat hepatocytes.
- Assessed cytotoxicity markers: reactive oxygen species (ROS), lipid peroxidation, glutathione (GSH) levels.
- Measured mitochondrial membrane potential (ΔΨm) and cytochrome c release.
Main Results:
- METH exposure caused ROS formation, lipid peroxidation, and GSH depletion.
- METH significantly decreased hepatocyte mitochondrial membrane potential (ΔΨm).
- Antioxidants and ROS scavengers prevented METH-induced mitochondrial damage.
- METH induced cytochrome c release from mitochondria prior to cell lysis.
Conclusions:
- METH-induced hepatotoxicity is mediated by oxidative stress.
- Mitochondrial dysfunction, including loss of ΔΨm and cytochrome c release, is a key event.
- Oxidative stress leads to mitochondrial membrane damage and subsequent cell death.
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