Cianidanol ([+ ]-Cyanidanol-3) Prevents the Development of Abdominal Adhesions in Rats

Abraham I. Rivkind, MD; Miriam Marshood; Aryeh L. Durst, MD; Yechiel Becker, PhD
Arch Surg. 1983;118(12):1431-1433. doi:10.1001/archsurg.1983.01390120053014.
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• Abdominal adhesions were experimentally induced in rats by gentle scraping. Severe adhesions developed in 38.7% of the control animals. The flavonoid cianidanol ([ +]-cyanidanol-3), an in vitro inhibitor of procollagen production, was administered intragastrically or intraperitoneally in doses of 9 to 72 mg per rat. Administered intraperitoneally at a dose of 36 or 72 mg per rat, cianidanol substantially inhibited adhesion formulation, when given immediately, three days, or five days after surgery. Oral administration of the drug was less effective in preventing the formation of adhesions. Thimerosal, another connective-tissue inhibitor, was found to be toxic at doses of 2.5 or 5 mg per rat, and its effect on the prevention of adhesion formation was poor. The ability of cianidanol to inhibit the development of abdominal adhesions in rats suggests that a possible approach to treatment is to inhibit the production of procollagen and thus prevent the formation of the collagenous fibers that are the cause of adhesions.

(Arch Surg 1983;118:1431-1433)


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