IL-1 and TNF antagonists prevent inhibition of fracture healing by ethanol in rats

DS Perrien, EC Wahl, WR Hogue, U Feige… - Toxicological …, 2004 - academic.oup.com
DS Perrien, EC Wahl, WR Hogue, U Feige, J Aronson, MJJ Ronis, TM Badger…
Toxicological Sciences, 2004academic.oup.com
We tested the hypothesis that combined administration of IL-1 and TNF antagonists would
protect fracture healing from inhibition by chronic ethanol exposure. Adult male rats were fed
a liquid diet±ethanol (CON and ETOH) by intragastric infusion for three weeks prior to and
three weeks after creation of an externally fixated tibial fracture. Beginning the day of
fracture, one-half of each dietary group received 2.0 mg/kg/day IL-1ra and 2.0 mg/kg/2-days
sTNFR1 (CON+ ANTAG and ETOH+ ANTAG), while all other animals received vehicle alone …
Abstract
We tested the hypothesis that combined administration of IL-1 and TNF antagonists would protect fracture healing from inhibition by chronic ethanol exposure. Adult male rats were fed a liquid diet ± ethanol (CON and ETOH) by intragastric infusion for three weeks prior to and three weeks after creation of an externally fixated tibial fracture. Beginning the day of fracture, one-half of each dietary group received 2.0 mg/kg/day IL-1ra and 2.0 mg/kg/2-days sTNFR1 (CON + ANTAG and ETOH + ANTAG), while all other animals received vehicle alone (CON + VEH and ETOH + VEH). Scoring of ex vivo radiographs and analysis by pQCT revealed a significantly lower incidence of bridging and reduced total mineral content in the ETOH + VEH group compared to all other groups. These results support, for the first time, the hypothesis that IL-1 and TNF antagonists are capable of protecting fracture healing from the inhibition associated with chronic ethanol consumption.
Oxford University Press