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Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
Published on: November 27, 2019
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Damage induced by paracetamol compared with N-acetylcysteine
Abdullah Kisaoglu1, Bunyami Ozogul1, Mehmet Ibrahim Turan2
1Department of General Surgery, Ataturk University, Erzurum, Turkey.
Journal of the Chinese Medical Association : JCMA
|July 17, 2014
Summary
Thiamine pyrophosphate (TPP) and N-acetylcysteine protect against paracetamol-induced liver damage by reducing oxidative stress. Both treatments preserved antioxidant levels and prevented liver injury in rats.
Area of Science:
- Biochemistry
- Toxicology
- Pharmacology
Background:
- Paracetamol overdose can cause severe liver damage due to oxidative stress.
- Thiamine pyrophosphate (TPP) is a biologically active form of thiamine.
- Investigating TPP's protective effects against drug-induced liver injury is crucial.
Purpose of the Study:
- To evaluate the efficacy of thiamine pyrophosphate (TPP) in mitigating paracetamol-induced oxidative liver damage in a rat model.
- To compare TPP's protective effects with N-acetylcysteine, a known antidote for paracetamol toxicity.
Main Methods:
- Rats were assigned to groups: control, paracetamol-only, and paracetamol with thiamine, TPP, or N-acetylcysteine.
- Oxidant markers (malondialdehyde, nitric oxide) and antioxidant levels (glutathione, SOD, catalase) were measured.
- Liver function tests were performed to assess hepatotoxicity.
Main Results:
- TPP and N-acetylcysteine treatments significantly inhibited the rise in malondialdehyde and nitric oxide caused by paracetamol.
- Both TPP and N-acetylcysteine maintained levels of key enzymatic and non-enzymatic antioxidants in the liver.
- Paracetamol-induced decreases in glutathione, glutathione peroxidase, glutaredoxin, glutathione S-transferase, superoxide dismutase, and catalase were prevented.
Conclusions:
- Thiamine pyrophosphate (TPP) demonstrated a comparable protective effect to N-acetylcysteine against paracetamol-induced hepatotoxicity.
- TPP effectively counteracted oxidative stress markers and preserved antioxidant capacity in the liver.
- These findings suggest TPP holds potential as a therapeutic agent for paracetamol-induced liver injury.
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