Abstract: The present invention provides a bioartificial lacrimal gland which contains at least one unit that includes (a) a permeable housing having an interior and an exterior; (b) an outlet connecting the housing interior to the housing exterior; and (c) a population of lacrimal epithelial cells within the housing interior.

Abstract: Methods and compositions for the prevention or reversal of exocrine gland atrophy, especially lacrimal gland atrophy, by maintaining normal physiological levels of prolactin are described. In the preferred embodiment, exogenous prolactin or a substance that modulates endogenous prolactin secretion is administered to a mammal in combination with an androgen, such as testosterone. The combination acts synergistically to maintain or restore normal prolactin concentrations, resulting in the maintenance or restoration of gland mass and function. Administration of prolactin and androgen in combination with estrogen is particularly useful in the treatment of lacrimal gland dysfunction in post-menopausal women or women who have undergone ovariohysterectomies.