Prolactin is unique among the anterior pituitary hormones in that it is under tonic inhibitory control by the hypothalamus. There is much evidence that the major prolactin inhibitory factor is dopamine [l-31. However, there are a number of physiological stimuli of prolactin secretion which can ‘override’ the effect of dopamine and one of the most important of these is oestrogen. Oestrogens are ...
