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Eur J Cancer Clin Oncol. 1986 Apr;22(4):427-33.

Salivary oestradiol and progesterone levels in premenopausal women with breast cancer.


The concentrations of oestradiol and progesterone have been measured in salivary specimens collected daily over a complete menstrual cycle in 12 patients with operable breast cancer and 12 normal control volunteers. There was no significant difference (P greater than 0.05) for either hormone between these two groups. Both showed a mid-cycle rise in oestradiol levels followed by a smaller but sustained increase during the luteal phase. The progesterone concentration increased markedly during the luteal phase of the cycle. Total or non-protein bound oestradiol levels measured in blood samples from 19 normal women were both linearly correlated (P less than 0.001) with the concentration of oestradiol in matched saliva samples. The amount of free oestradiol in blood was about twice that found in saliva.

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