Imprinting, digoxin uptake and storage in Tetrahymena. 1985

Z Darvas, and R Swydan, and G Csaba, and V László, and S U Nagy

Tetrahymenas after a single exposure to high concentration of digoxin, release glycoside into the culture medium even three days after removal of the drug. After nine or fifteen days, however, this effect subsides. Re-administration of digoxin causes the digoxin consumption (storage) of Tetrahymenas to increase. This observation indicates that the digoxin imprinting previously demonstrated in mammals occurs also in Tetrahymena. The experiments raise the possibility that also Tetrahymenas are capable of producing a digoxin-like substance detectable by radioimmunoassay.

UI MeSH Term Description Entries
D004077 Digoxin A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666) Digacin,Digitek,Digoregen,Digoxina Boehringer,Digoxine Nativelle,Dilanacin,Hemigoxine Nativelle,Lanacordin,Lanicor,Lanoxicaps,Lanoxin,Lanoxin-PG,Lenoxin,Mapluxin,Boehringer, Digoxina,Lanoxin PG,Nativelle, Digoxine,Nativelle, Hemigoxine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013769 Tetrahymena pyriformis A species of ciliate protozoa used extensively in genetic research. Tetrahymena pyriformi,pyriformi, Tetrahymena
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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