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  • Title: Circulating epoxide hydrolase immunodeterminants in rats bearing hyperplastic nodules induced by 2-acetylaminofluorene.
    Author: Palakodety RB, Griffin MJ, Broyles RH.
    Journal: Cancer Lett; 1988 Jan; 38(3):347-53. PubMed ID: 2450639.
    Abstract:
    Epoxide hydrolase immunodeterminants (EH-immunodeterminants), as measured by a highly sensitive and specific enzyme-linked immunosorbent assay (ELISA), were detected in the sera of rats bearing hyperplastic liver nodules induced by feeding 2-acetylaminofluorene (2-AAF), while they were low or absent (less than 0.05 microgram/ml) in the sera of rats fed a basal diet. The levels of EH-immunodeterminants ranged from 0.2 microgram/ml to 2 microgram/ml of serum and correlated (P less than 0.01) with the nodular status of the liver. Rats with predominantly small nodules (less than 3 mm) had circulating levels of antigen from 0.15 to 0.35 microgram/ml while those with large nodules (greater than 3 mm) had values ranging from 0.4 to 2.0 micrograms/ml serum and the serum levels for rats containing both small and large nodules were found to be in the intermediate range (0.2-0.8 microgram/ml). EH-immunodeterminants were also released into tissue culture medium from incubated hyperplastic nodule slices and the levels of the immunodeterminants released from nodules were about 5-fold higher than that released from incubated control liver.
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