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  • Title: The effect of long-term, voluntary ethanol consumption on hepatic regeneration in rats.
    Author: Minuk GY, Rockman GE, Gauthier T, Markert L, Gibson J, Benarroch A.
    Journal: Can J Physiol Pharmacol; 1991 Mar; 69(3):341-5. PubMed ID: 2059899.
    Abstract:
    Previous studies have reported conflicting results regarding the effect of ethanol on hepatic regeneration. The purpose of the present study was to determine whether long-term, voluntary consumption of ethanol, within the range reported in humans, has an effect on hepatic regenerative activity in rats following partial hepatectomy. Ninety-four adult male Sprague-Dawley rats (n = 3-9/group) were studied. Based on the amount of 9% ethanol consumed over a 50-day period, low ethanol intake (0.1-1.9 g.kg-1.d-1) and high ethanol intake (2.0-4.0 g.kg-1.d-1) groups were identified. Control groups consisted of rats provided with propylene glycol in equivalent caloric amounts to the ethanol consumed by high ethanol intake rats (isocaloric group) and rats served water only (ad libitum group). An additional two groups from which ethanol was removed 5 days prior to surgery were also studied (low ethanol grace and high ethanol grace). Hepatic regeneration was determined by restitution of liver weight, [3H]thymidine incorporation into DNA, and [14C]leucine incorporation into protein 24, 48, and 72 h following partial (70%) hepatectomy. The results of the study revealed no significant differences in the rate of hepatic regeneration between low and high ethanol consuming rats or between either of these groups and isocaloric or ad-libitum fed control groups. Regeneration in low ethanol grace and high ethanol grace groups were also similar to each other and controls. Moreover, there was no correlation between mean ethanol consumption per rat and restitution of liver weight, [3H]thymidine incorporation into DNA, or [14C]leucine incorporation into protein by the regenerating liver (r = 0.0716, -0.1637, and 0.1395, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)
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