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  • Title: The occurrence of ecdysteroids in the cestode, Moniezia expansa.
    Author: Mendis AH, Rees HH, Goodwin TW.
    Journal: Mol Biochem Parasitol; 1984 Feb; 10(2):123-38. PubMed ID: 6700637.
    Abstract:
    The occurrence of free ecdysteroids in the sheep cestode, Moniezia expansa, was demonstrated. Significant amounts of conjugated ecdysteroids were not detected. Characterization of the free hormones by high-performance liquid chromatography monitoring fractions by radioimmunoassay, and by gas chromatography/mass spectrometry (selected ion monitoring) indicated the presence of ecdysone, 20-hydroxyecdysone and 20,26-dihydroxyecdysone. Analysis of the ecdysteroids by radioimmunoassay in segments along part of the strobila indicated that the anterior parts contained the greatest amount of hormone. GC/MS (SIM) analysis of the hormones in a strobilar segment containing the most mature proglottids suggested the presence of several ecdysteroid metabolites.
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