New Test for the Biological Assay of Oxytocin

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Science  29 Jul 1960:
Vol. 132, Issue 3422, pp. 299-300
DOI: 10.1126/science.132.3422.299


A strip of mammary gland is removed from a lactating rabbit and suspended in a bath. The contractions of the strip are recorded isometrically. The strip shows no spontaneous activity and responds with reasonable linearity and stability to oxytocin at concentrations ranging from 0.5 to 10 milliunits per milliliter.