Related Experiment Video
Updated: Aug 18, 2026
DNBS/TNBS Colitis Models: Providing Insights Into Inflammatory Bowel Disease and Effects of Dietary Fat
Published on: February 27, 2014
Effect of ethanol consumption on colon cancer in an experimental model
S Pérez-Holanda1, L Rodrigo, J Viñas-Salas
1Department of Surgery, Hospital Grande Covián, Arriondas, Asturias, Spain. direccionmedica.gae6@sespa.princast.es
Aims:
The present study was designed to examine the effect of an ethanol supplement on experimental colon carcinogenesis.
Material And Methods:
One hundred and ten 10-week-old Sprague-Dawley rats were divided into five groups: group A (20 rats) received no treatment. Group B (20 rats) received a supplement of ethanol at 1.23 g/kg of body weight per day added to their drinking water for 24 weeks. Group C (30 rats) received 18 weekly doses of dimethylhydrazine (DMH) at 21 mg/kg of body weight from the beginning of the study. Group D (20 rats) received ethylen-diamin-tetracetic acid (EDTA) solution only for 18 weeks. Group E (20 rats) received ethanol at the same dose as group B plus DMH injections at the same dose as the rats in group C from the beginning of the study. All experimental animals were sacrificed after 25-27 weeks.
Results:
No significant differences in the number of rats that developed tumors, number of tumor-free animals, and number of tumors per rat, as well as in macro-microscopic tumoral findings were observed for animals in group C compared to animals in group E.
Conclusions:
We concluded that the addition of an ethanol supplement does not modify colorectal carcinogenesis using a dynamic model of tumor induction with DMH.
