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  • Title: Sexual differentiation of rat liver carbonic anhydrase III.
    Author: Shiels A, Jeffery S, Phillips IR, Shephard EA, Wilson CA, Carter ND.
    Journal: Biochim Biophys Acta; 1983 Nov 08; 760(3):335-42. PubMed ID: 6414524.
    Abstract:
    Using radioimmunoassay, the concentration of carbonic anhydrase III in the livers of adult male rats was found to be approx. 30-times greater than that observed in mature females. Castration of male rats led to a marked reduction in liver carbonic anhydrase III concentrations which could be partially restored to control levels by testosterone replacement. Administration of testosterone to ovariectomised female rats induced about a 5-fold increase in liver carbonic anhydrase III concentration. Immunoprecipitation analysis of the products of liver mRNA translation in vitro with antiserum specific for carbonic anhydrase III showed that hormonal control of the levels of carbonic anhydrase III in liver is mediated by changes in the amount of translatable carbonic anhydrase III mRNA. Marked changes in liver carbonic anhydrase III concentrations were also observed in developing and ageing male rats.
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