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Journal of Experimental Biology 19,118-123 (1942)
Published by Company of Biologists 1942

The Effects of some Oestrogenic Substances and Cyclic Hydrocarbons on the Rate of Growth of Cells

G. CALCUTT 1

1 Mount Vernon Hospital Northwood, Middlesex

1. Oestrone in dilutions of 10-5 to 10-7 was found to stimulate the growth of Colpidium sp. over periods of about 24 hr.; with longer exposures retardation and death occurred.

2. Higher concentrations of the oestrone were found to be lethal; whilst lower ones had no detectable effect.

3. Owing to the impossibility of obtaining suitable solutions of oestradiol benzoate and stilboestrol anomalous results were obtained.

Submitted on March 21, 1942






© The Company of Biologists Ltd 1942