Cyanamide-induced liver injury. A predictable lesion

Area of Science:

• Hepatology
• Toxicology
• Pharmacology

Background:

• Cyanamide is utilized in aversion therapy for chronic alcoholism.
• The drug is known to induce liver-cell lesions characterized by cytoplasmic inclusion bodies.
• These inclusion bodies share structural similarities with Lafora bodies.

Purpose of the Study:

• To investigate the frequency of liver-cell lesions associated with cyanamide intake.
• To determine the predictability of these lesions in patients undergoing alcoholism treatment.

Main Methods:

• A prospective study involving ten chronic alcoholic patients treated with cyanamide.
• Liver biopsies were performed on patients during and after cyanamide treatment.
• Histopathological examination of liver biopsies to identify cytoplasmic inclusion bodies.

Main Results:

• Inclusion bodies were detected in all seven patients biopsied while actively taking cyanamide.
• Two patients exhibited inclusion bodies in biopsies taken 3 and 7 years after discontinuing cyanamide.
• One patient, treated with a low dose for a short duration, showed no inclusion bodies 3 years post-treatment.

Conclusions:

• The liver-cell lesion induced by cyanamide is predictable.
• Inclusion bodies may persist for years after cyanamide cessation.
• The absence of inclusions in one case might be due to the disappearance of the lesion over time.